866 FXUS66 KSEW 121650 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 950 AM PDT Sun Apr 12 2026 .UPDATE... Satellite imagery shows low cloud deck hanging tough over portions of the area this morning. Stratus isn`t very deep with tops below 2000 feet. Low level flow is light which will make it hard to get rid of the cloud cover. In addition to the light flow in the lower levels high clouds moving through this morning will also hinder the breaking up of the low cloud deck. Current forecasts have a late afternoon break out and that looks good at this point. With the cloud cover hanging on highs a touch warm in the forecast with mid to upper 50s instead of lower 60s. Previous discussion follows with updated aviation section. Felton && .SYNOPSIS... Onshore flow will increase tonight and Monday for showers and a convergence zone. The next system will bring additional lowland rain, windy conditions plus possible heavy mountain snow on Tuesday. Upper level low over western Washington Wednesday for continued cool conditions. Drying northerly flow aloft developing Thursday into the weekend. && .SHORT TERM /TODAY THROUGH TUESDAY/... A brief break in the weather this morning and early afternoon as an upper level low shifts inland to our south (over northern CA). Showers will then increase late this afternoon and evening, primarily over the interior and Cascades, as low level onshore flow increases. Onshore flow continues into Monday with convergence zone showers over King/Snohomish counties. Cool, wet and windy conditions are ahead as we move into Tuesday while a deep upper low descends south from B.C. Snow levels will lower to around 3000 ft with snow expected at all Cascade passes. Winds will be gusty from the S/SW with gusts to 25-35 mph (peaking in the interior during the afternoon). 33 && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Wet and cool conditions will continue Tuesday night and Wednesday as a deep upper low spins over WA. Snow levels will lower further, down to around 1500-2000 ft, with snow in the Cascades and passes. Mean 48 hour snow totals range from 6 to 12" inches with higher amounts on the volcanoes. Expect cooler lowland temperatures with lows in the 30s and highs in the 40s to around 50. Drier weather is in store Thursday into the weekend with high pressure. Lows remain chilly and in the 30s with freezing temperatures around the south sound. Expect highs in the 50s with lower 60s by Saturday. 33 && .AVIATION... Variable to northerly winds aloft as a weak trough sets up over western Washington. Fog and low clouds have brought IFR to LIFR cigs/vis but conditions are beginning to gradually improve. VFR is slated to return by 20-22z. Winds will remain northerly throughout the afternoon but will keep speeds generally 3 to 6 knots. MVFR/IFR cigs are like to redevelop this evening for Puget Sound terminals as a convergence zone develops. KSEA...LIFR conditions have lifted to IFR so far this morning as fog and low clouds developed earlier at the terminal. Northerly winds generally around 3 to 6 knots and remaining there throughout the afternoon. Latest guidance shows a 60-70% chance of conditions returning to VFR by 18z-20z as fog/low clouds start to dissipate. Winds will start to turn more SW by 20z and increase slightly to 4 to 8 knots. MVFR/IFR cigs are to return this evening as a convergence zone develops. Mazurkiewicz/McMillian && .MARINE... Surface low pressure continuing to move southward as a high pressure system develops offshore in the northeastern Pacific. Generally calm and benign northerly winds over the waters this afternoon. A small craft advisory remains in effect for increased westerlies down the Strait of Juan de Fuca late Sunday into Monday. A stronger frontal system arriving late Tuesday into Wednesday will likely yield additional headlines as we will see increased winds and seas. Coastal seas 4 to 6 feet throughout the weekend. Seas will then start to build upwards to 8 to 10 feet by Tuesday evening and remaining elevated through Thursday. Mazurkiewicz && .HYDROLOGY... No river flooding the next 7 days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory from 5 PM this afternoon to 11 AM PDT Monday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. && $$

802 FXUS66 KPQR 121817 AFDPQR Area Forecast Discussion National Weather Service Portland OR 1117 AM PDT Sun Apr 12 2026 Updated aviation discussion. .SYNOPSIS...A pattern change is in store today into early next week as the flow aloft turns more west to northwest allowing for conditions to trend a little cooler, although showers persist at times. Confidence is high in the arrival of a more potent frontal system later Tuesday into Wednesday ushering in widespread precipitation and a shift toward Cascade snowfall impacts. Cooler overnight temperatures follow to end the week - we may not be out of the woods when it comes to morning frost just yet. && .SHORT TERM...Now through Tuesday...Today marks the transition back to a more progressive weather pattern as an upper-level low pressure system which sat off the northern California coastline yesterday while facilitating a fairly convective environment now pushes inland. Still, models are in good agreement depicting wrap around moisture and additional bands of shower activity pivoting into the region as the day progresses. But unlike the past couple of days, the return of onshore WNW flow near the surface should effectively end any additional thunderstorm chances west of the Cascade crests thanks in part to the cooler temperatures with highs in the 50s to low 60s inland - a 4 to 8 degree drop from yesterday. Anticipate precipitation probabilities of 60-95% over most of northwest Oregon and elevated areas of southwest Washington. North of Tillamook into the south Washington coast is the main exception, with just a 20-40% chance of precipitation as it remains further away from the core of the upper-level low spinning moisture our way. Headed through Monday a weak embedded shortwave feature is expected quickly swing into the region from the northwest, maintaining persistent chances (60-90%) for showers, highest across the Cascades, coast range, and foothills where terrain features will help to initiate and maintain more frequent activity. At least among ensemble and deterministic guidance there is good agreement in a weak high pressure ridge feature building overhead late Monday into Tuesday morning, and while it won`t completely end our shower chances, it`ll help ensure most of the lingering activity remains pinned to terrain features while the inland valleys trend mostly dry. Confidence is high come Tuesday afternoon a decently strong cold frontal boundary begins pushing into the region. Beyond some locally breezy conditions during the afternoon of gusts 20-35 mph out of the south (highest at the coast), the bulk of the impacts accompanying this system hold off until Tuesday night and Wednesday. Spoilers: much needed moderate to heavy snow likely returns to the Cascades for a period of time. -99 .LONG TERM...Tuesday night through Saturday... Ensemble and deterministic guidance is in excellent agreement showing a cold front sweeping through the region Tuesday night into Wednesday morning with widespread precipitation across the region. The latest guidance has begun to show less uncertainty regarding 24 hour rainfall totals when the meat of the front passes overhead Tuesday evening through Wednesday morning, with QPF values around 0.6-1.10 inches in the Willamette Valley through the Portland metro, 0.8-1.5 along the coast/coast range, and 0.90-2.0 inches in the mountains. Cool temperatures along and behind the frontal boundary help to rapidly punch snow levels below Cascade pass elevations, raising the potential for winter-like travel impacts. Current probabilistic guidance indicates a 85-95% chance of 6+ inches of snowfall at the Cascade passes between Tuesday and Thursday evening (48 hours), with a 50-70% chance of 12 inches or more. If these trends continue, winter weather highlights may become necessary for portions of the Cascades. In addition to the Cascade snowfall, cooler and potentially clearer conditions behind the system may introduce renewed frost concerns across portions of the interior valleys by mid to late week. The first opportunity appears Wednesday night into Thursday, with a 30-70% chance of frost across much of the interior lowlands (lowest around the Portland-Vancouver metro) and a 50-90% chance of freezing temperatures in the Upper Hood River Valley (chances from Odell to Parkdale). Similar conditions may develop again Thursday night into Friday morning, but with slightly lower chances. Temperatures begin to trend warmer into the weekend eventually lessening these frost/freeze related concerns. -99/12 && .AVIATION...Light scattered showers have developed across NW OR and SW WA and will continue across the region into Sunday evening, slowly dissipating from the interior lowlands between 04-10z Sun. Showers continue beyond this over the Cascades and Coast Range. Expect lowered flight conditions at most terminals today, mainly MVFR cigs and/or vis, though some showers are pushing cigs and/or vis to brief IFR flight levels. Along the coast, north of TMK will be mainly dry with periods of VFR cigs. As daytime heating produces more mixing, valley terminals are likely to become mainly VFR generally after 19-22z Sat, though expect fluctuations between VFR and MVFR in showers. Guidance indicates widespread MVFR cigs return after 04-08z Sun. Winds remain relatively light less than 10 kts, mainly westerly along the coast and southerly inland, shifting westerly after 21z Sat - 03z Sun. KPDX AND APPROACHES...MVFR conditions persist, should become VFR by 19-22z Sun. However, scattered showers through the evening could produce brief periods of MVFR/IFR cigs or vis. Showers dissipate by 04-06z Mon, then widespread MVFR cigs return. Winds southerly around 8-10 kts, becoming westerly after 03z Mon. -03 && .MARINE...Northerly winds are expected to continue into early next week albeit not particularly strong with gusts staying below 20 knots through Monday. Significant wave heights hold in the in the 4 to 7 foot range through this time period as well. Our focus then turns to our next weather system in the form of a robust frontal boundary arriving later Tuesday into Wednesday morning which likely (85-95% chance) results in Small Craft Advisory wind gusts over 21 kts and seas building to around 7 to 10 feet. However, there is a 10-25% for a brief period Gale Force wind gusts Tuesday evening. Wave heights and winds then slowly decrease Thursday into the end of the week. -99/03 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...None. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

301 FXUS66 KMFR 121734 AFDMFR Area Forecast Discussion National Weather Service Medford OR 1034 AM PDT Sun Apr 12 2026 ...New Aviation Section... .AVIATION (18Z TAFs)... IFR conditions will continue through early this afternoon before relief occurs through the afternoon hours. However, showers are expected again today/tonight and will likely impact all 4 terminals. MVFR conditions are likely (50%-65%) through a majority of this cycle, especially this evening and overnight as showers become likely bringing ceilings down. Otherwise, expecting overall light wind speeds through this cycle, but KLMT could be breezy at times this afternoon. && .PREV DISCUSSION... /Issued 426 AM PDT Sun Apr 12 2026/ DISCUSSION...Between 3 AM today and 3 AM yesterday, most west side valley locations saw 0.25"-0.50", and more of Josephine County and the Southern Oregon coast received 0.50"-1.00". As of 3 AM radar shows showers moving north through Douglas County, and another batch of showers is moving into Siskiyou County. Later this morning near 11 AM and through 6 AM there will be a slight chance for thunderstorms in Siskiyou and Modoc counties and in the Rogue Valley through Medford and Grants Pass. Today`s coverage will be more scattered and will focus on the thunderstorm areas described above. Most west side locations will see around a third of an inch of new rainfall between 5 AM and 11 PM today. Snow levels will be near 4,500`-5,000`, and the Winter Weather Advisory will remain in effect for portions on Siskiyou County in the Marbles as there can be up to 3 inches in higher terrain through 11 AM. Please see WSWMFR for more details. The upper low will be concentrated in Northern California through Monday morning before it begins to move east. Scattered showers will be present early Monday morning, and this will turn to isolated/scattered showers across Southern Oregon and Northern California in the afternoon. An inch to three inches of snow is possible for the Cascades Monday with around 0.10" for new rainfall in west side valleys. For temperatures, they will be 5-10 degrees below normal in the afternoons with near normal to slightly above normal lows, thanks to the overnight cloud cover. Tuesday onward: Tuesday is the relative dry break for our area, although there will be a chance of rain in northern sections of the forecast area and the coast. An upper level trough will bring a well defined cold front through the forecast area by Wednesday with widespread precipitation and snow above 4000 feet. The ensembles are coming in better agreement with snow accumulation in the higher Cascades Tuesday night into Wednesday. Some even showing 1" an hour over 6 hours, which gives us hints there could be travel impacts. In any case, Crater Lake and other high terrain should see a quick 5 to 10 inches of snow by late Wednesday morning. There will be minor impacts on the higher passes since this is falling along a front overnight. Temperatures will fall below normal behind this cold front on Wednesday and Thursday with highs in the mid 50`s here in Medford and mid to lower 50`s across all other populated areas in southern Oregon. Snow levels will actually dip to 2500 feet Wednesday night and Thursday, which tells you how cool the air is and how steep the lapse rates will be during Thursday. Precipitation will be next to nothing, so no snow around 2500 feet Thursday. -Smith AVIATION...12/12Z TAFs...MVFR ceilings along the coast and in the Umpqua Basin will lift in the Umpqua Basin through the morning. Medford is forecast to fall to MVFR ceilings by 13Z as well. Scattered showers will continue through the TAF period. There is a low chance (5-15%) for embedded thunderstorms. However, coastal areas are expected to remain MVFR through Sunday afternoon. MARINE...Updated 300 AM PDT Sunday, April 12, 2026...Showers are expected through Monday morning. The unsettled weather will keep winds and short period northwest swell dominated seas below advisory level. Steep seas are possible beginning Tuesday afternoon with a stronger frontal passage. The front will bring increasing southwest winds as it moves across the waters on Tuesday night into early Wednesday. High pressure offshore and a developing thermal trough inland will bring increasing north winds later Wednesday with the strongest winds south of Gold Beach and seas likely to remain steep. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...None. CA...Winter Weather Advisory until 5 PM PDT this afternoon for CAZ080. PACIFIC COASTAL WATERS...None. && $$

799 FXUS66 KEKA 120750 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 1250 AM PDT Sun Apr 12 2026 .SYNOPSIS...Scattered showers are expected again today with a slight chance for thunderstorms, mainly in the afternoon. Cool temperatures and a mix of sun and clouds are expected Monday and Tuesday. Rain is expected Wednesday, mainly north of Mendocino county. Near freezing or freezing temperatures are expected late in the week with more rain possible over the weekend. && .DISCUSSION...The upper level low is moving onshore this morning and continuing to bring showers and a few thunderstorms to the area. Snow levels are around 3,500 to 4000 feet with some local areas of snow down to 3,000 feet. Generally accumulations look to only be a few inches of slushy snow below 5,000 feet with larger amounts at higher elevations. This afternoon with the daytime heating and the upper level low moving overhead the models are showing a 100 to 200 j/kg of CAPE and this may be enough to bring some more thunderstorms to the inland areas. This will depend on how quickly the low moves out of the area and there is still some uncertainty on that. Snow levels are also expected to rise this afternoon with daytime heating and as the low moves out. As the low moves overhead and then out of the area winds are expected to remain lighter than yesterday. Sunday night into Monday with the low moving out is is expected to start drying out. However, now some of the models are showing a shortwave moving down from the north and this may bring some more light rain or drizzle on Monday. Very little rainfall is expected, generally less than a tenth of an inch. However, this will likely bring enough clouds to keep temperatures in the northern valleys above freezing. Farther south skies are expected to remain more clear in Mendocino and Lake counties, although some fog may form in the valleys due to the recent rain. This could allow some frost to form and a frost advisory may be needed. Monday afternoon temperatures will generally stay in the 50s with some low 60s possible in southern Mendocino and Lake counties. Monday night into Tuesday is expected to remain dry. Frost is possible in more of the area, but there still may be some clouds and valley around, especially in the north. Tuesday afternoon temperatures may finally warm into the 60s in many of the valleys, although the coast will likely remain in the 50s. The next weather system is expected to bring more rain Tuesday night into Wednesday. Rainfall amounts continue to increase, although probabilities drop off quickly in Mendocino and Lake counties. The Del Norte mountains have around a 50 percent chance of seeing 1 inch, however the mountains of Humboldt county only have around a 10 percent chance of seeing over an inch. Humboldt and Trinity counties are expected to see around a quarter to a half inch of rain. Northern Mendocino county is expected to see less than quarter of an inch with only a trace to a tenth of an inch farther south. Snow levels are mainly expected to be around 5,000 feet. Thursday through early Saturday mainly dry weather is expected and afternoon temperatures will warm into the 60s and 70s once again. It looks like the valleys will finally dry out enough to allow temperatures to cool, especially Thursday morning. Overnight lows are expected to be near or below freezing. There may even be frost along the coast. Next weekend there is the potential for another round of rain. Currently it looks like the rain will start to spread across the area Saturday night and continue on Sunday. MKK && .AVIATION...(06Z TAFs)...Swaths of moderate to heavy rain over the CWA Saturday late afternoon into the evening brought periods of LIFR and reduced visibility. Intensity has waned with post frontal winds light and variable as of 05z. VFR/MVFR conditions for mostly all terminals in the CWA are expected through the TAF period with cloud cover dropping off after 07z. Cyclonic flow continues as the CCW motion, centered off of Cape Mendo, lumbers northward up the coastline. Ceilings around 5000 feet or more could come down to around 2500 feet by Sunday morning sunrise hours, MVFR conditions with light rain with sporadic infrequency expected. Chances for rain drop off by the late afternoon Sunday for the coastal terminals with a return overnight into early Monday morning. /EYS && .MARINE...West to northwest winds will develop early Sunday. In addition there is expected to be a west-northwest swell around 5-7 feet at 9-10 seconds and some additional small swells through the day on Sunday. Monday, northerly winds returns as high pressure starts to build into the area. This will promote moderate to fresh northerly breezes across the waters Monday through Tuesday, with the strongest winds south of Cape Mendocino. Wednesday, a brief wind shift to the south is expected over the northern waters as a frontal system moves through, followed by strengthening northerly winds Wednesday night through Friday as the pressure gradient tightens. There is a potential (75-95% chance) of gale force gusts late next week. /ZVS && .EKA WATCHES/WARNINGS/ADVISORIES... CA... Winter Weather Advisory until 11 PM PDT Sunday for CAZ107. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until midnight PDT tonight for PZZ450- 455-470-475. && $$ NOTE: The full forecast discussion is now regularly issued between 10 am/pm and 1 pm/am. Additional updates will be issued as needed. Visit us at https://www.weather.gov/eureka Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png

913 FXUS66 KMTR 121841 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1141 AM PDT Sun Apr 12 2026 ...New SHORT TERM, LONG TERM... .KEY MESSAGES... Updated at 1139 AM PDT Sun Apr 12 2026 - Scattered rain showers with isolated thunderstorms will linger into midday on Monday - Gusty winds, especially at higher elevations Wednesday through Friday - A gradual warming and drying trend returns through the remainder of extended forecast && .SHORT TERM... Issued at 1139 AM PDT Sun Apr 12 2026 (This afternoon through Monday) Scattered to numerous rain showers and isolated thunderstorms will remain possible throughout this evening. This is as the colder air mass aloft continues to provide enough instability in the post- frontal environment. Now through early evening is when we have the greatest potential for convection as Surface Based CAPE remains between 200-700 J/kg across must of the region as a result of daytime heating. With the loss of daytime heating, the threat for thunderstorms will diminish and give way to mostly isolated to scattered rain showers, especially over the Pacific, Bay Area, and Central Coast. These rain showers may linger into midmorning on Monday as the mid/upper level low shift southward into southern California. Overnight temperatures will be chilly as winds diminish with mid-to- upper 30s across the North Bay valleys and interior Central Coast (and higher elevations across the region). This may lead to frost formation the coldest, wind sheltered regions. However widespread frost is not likely. Monday will be up to 7 degrees F cooler than average (up to 20 degrees F cooler in the higher elevations). Cloudy skies are anticpated to give way to mostly sunny skies by midday. However, fair weather cumulus will remain possible throughout the day over the higher terrain. && .LONG TERM... Issued at 1139 AM PDT Sun Apr 12 2026 (Monday night through next Saturday) Troughing will remain in place through Wednesday with temperatures warming slightly as high pressure nudges eastward over the eastern Pacific. By Wednesday, another mid/upper level through is forecast to drop down the British Columbia coast and into the Pacific Northwest. This will bring the potential for light rain to the North Bay with a 15-30% chance of precipitation by Wednesday afternoon and into Wednesday night. Little to no measurable rainfall is currently anticipated. Thus, we are not currently expecting any major impacts from this system as it slides into the Great Basin Thursday and into Friday. This will result in winds becoming offshore (northerly to northeasterly) across the North Bay Mountains and East Bay Hills Thursday afternoon and into Friday. Winds will also become offshore in other higher elevations across the Bay Area and Central Coast, however to a lesser extent. Again, fire weather concerns are not expected giving the decent wetting rainfall the region has experienced over the past several days. Forecast ensembles indicate a good probability of shortwave ridging building in across the eastern Pacific Friday and through the upcoming weekend. Thus, temperatures look to warm into the mid-to- upper 60s near the coast and low-to-mid 70s across the interior. && .AVIATION... (18Z TAFS) Issued at 1051 AM PDT Sun Apr 12 2026 Scattered showers/tstorms continue to traverse the region this morning. Flight CAT will vary greatly with the passing shower activity with VFR to MVFR/IFR temporarily. Current timing keeps SHRA through 20-23Z with gradual clearing this afternoon. Winds will remain breezy to gusty through this timeframe as well. Winds ease after 00Z this evening. Given the ample low level moisture there is a 10-20% chc for Monday AM fog for the N Bay Valleys. Not high enough conf to include at this time Vicinity of SFO...AWW for lightning through 3 PM. About 40-60% chc for the lightning with in 5 mi. Otherwise, periods wet runways, but thankfully more SW wind than SE. -SHRA will fade after 03Z with VFR developing. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...Scattered showers are making their way through the Monterey peninsula bringing a persistent low-level cloud deck and a few passing mid-level clouds. Rain showers should clear out this afternoon by 2-3pm, but low clouds are expected to linger for the remainder of the day. Onshore winds will remain breezy with a few embedded gusts until the evening. There is some potential for another round of light rain showers to return later tonight after sunset, though confidence is low(20%) at this time. && .MARINE... (Today through Friday) Issued at 1051 AM PDT Sun Apr 12 2026 Rain showers and isolated thunderstorms will continue to move through the waters today with lingering showers possible into early Monday morning. Any stronger shower or thunderstorm would be capable of producing strong and erratic winds. A moderate to fresh westerly breeze will prevail through the afternoon before veering to northwesterly tonight and diminishing. Winds continue to diminish and seas subside into the work week. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory until 3 PM PDT this afternoon for Mry Bay- Pt Arena to Pt Reyes 10-60 NM-Pt Reyes to Pigeon Pt 0-10 nm- SF Bay N of Bay Bridge. Small Craft Advisory until 9 PM PDT this evening for Pigeon Pt to Pt Pinos 10-60 NM. && $$ SHORT TERM...RGass LONG TERM....RGass AVIATION...MM/AN MARINE...RGass Visit us at www.weather.gov/sanfrancisco Follow us on Facebook, X, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea

213 FXUS66 KOTX 121748 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 1048 AM PDT Sun Apr 12 2026 .KEY MESSAGES... - Showers and afternoon thunderstorms this weekend. - Light to moderate rains Sunday evening into Monday morning for North Idaho and southeastern Washington. - A robust cold front to deliver valley rain, mountain snow, and gusty winds Tuesday into Wednesday. && .SYNOPSIS... Chances for showers and afternoon thunderstorms continue into Sunday. Areas of moderate rain will develop Sunday night and continue into Monday for the Idaho Panhandle and southeastern WA. A cold front passage Tuesday afternoon into Wednesday will bring additional light rain in the lowlands, mountain snow, and breezy to windy conditions. && .DISCUSSION... Today through Monday: A clearly defined low on satellite imagery off the northern CA coast will send a strong mid level wave up into Oregon and Central Idaho today, with the northern reaches hitting SE Washington into the Central Panhandle Mountains by late afternoon into the early evening. There is higher than normal uncertainty with the precipitation amounts for the Spokane/Coeur d`Alene area down into the Palouse and LC Valley, due to both how far north the shield of precipitation spreads, as well as convective instability on the north end of the precipitation band. Here is the NBM chances of various precipitation thresholds being reached: City Chance of Chance of Chance of Chance of .10 inches .25 inches .50 inches 1.00 inch or more or more or more or more Spokane 35% 15% 5% 0% Coeur d`Alene 55% 35% 15% 5% Kellogg 70% 50% 25% 5% Pullman 80% 65% 45% 15% Lewiston 80% 65% 45% 15% Kamiah 95% 85% 60% 20% The highest totals are favored on the palouse into the LC Valley and Camas Prairie. The rain will lead to rises on small streams but no flooding is currently expected. Surface based CAPE of around 500 J/KG Sunday afternoon combined with incoming forcing with the wave will lead to a 20 percent chance of thunderstorms across SE Washington into the southern ID Panhandle. Snow levels will remain high, starting around 6000-7000 feet today lowering to 5000-6000 feet by Monday morning keeping snow above the mountain passes and confined to the higher peaks. For Monday afternoon what is left of the deformation band weakens and shifts east with mainly mountain showers expected. Tuesday through Thursday: A deep low pressure system will send an organized frontal boundary through the Inland NW. A 100 kt zonal upper jet will lead to a rain shadow across Central WA with only light precip amounts (if any), while the Cascades and ID Panhandle will see a burst of precipitation with a cold front passage. Snow levels with this system range from 3000-4500 feet (lowest Cascades) on Tuesday, dropping to 1500-3000 feet behind the front on Wednesday. This system will bring late season snow to the mountains. Stevens Pass has a 70% chance of seeing more than 10 inches of snow from 5 AM Tue - 5 AM Thu, while Lookout Pass has a 65% chance of more than 4 inches. This system will also bring gusty winds, with wind gusts of 30-45 MPH across the region. Colder air behind the front will drop temperatures, with widespread freezing temperatures expected Wednesday Night with lows in the 20s to low 30s. Friday and Saturday: A couple days of quieter weather as the low exits the region and a weak short wave ridge moves in. This will allow temperatures to moderate and warm back up to near seasonal normals. JW && .AVIATION... 18Z TAFS: Surface heating will result in developing cumulus fields late this morning and into the early afternoon. A band of showers will pivot toward KLWS-KPUW around 20z-00z, but the band looks to fall apart before the showers reach KGEG-KSFF-KCOE. There is a 30 percent of this band bringing thunderstorms to KLWS between 21z-00z. There is a 15 percent chance of thunderstorms at KPUW, but confidence was too low to include in the KPUW TAF. Otherwise, KLWS-KPUW should expect steady rains and lowering CIGS with areas of MVFR conditions. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: There is a 15-30 percent chance of thunderstorms mainly south of Spokane/Coeur d`Alene Sunday afternoon and evening including KPUW/KLWS. As steady rains reach KPUW/KLWS Sunday evening, CIGS will lower with HREF going for a 80% chance of MVFR CIGS at KPUW starting around 02z Mon, and a 50% chance of IFR. ----------------------- Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance For additional probabilistic information for NWS Spokane airports,please refer to the Aviation Dashboard on our webpage: https:/www.weather.gov/otx/avndashboard && .Preliminary Point Temps/PoPs... Spokane 66 44 60 38 52 37 / 30 50 40 0 20 90 Coeur d`Alene 65 44 55 39 50 38 / 30 60 70 20 30 100 Pullman 61 42 52 36 51 39 / 70 90 70 10 20 90 Lewiston 63 46 57 40 58 43 / 70 90 60 10 10 90 Colville 68 40 66 36 53 34 / 20 20 50 10 50 90 Sandpoint 63 42 54 39 48 37 / 30 50 80 40 70 100 Kellogg 64 44 49 38 48 37 / 50 80 90 40 60 100 Moses Lake 69 45 67 38 58 38 / 10 20 0 0 10 30 Wenatchee 67 48 62 41 56 36 / 10 10 0 0 20 50 Omak 69 45 69 40 57 36 / 20 20 0 0 20 50 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

194 FXUS66 KPDT 121731 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 1031 AM PDT Sun Apr 12 2026 .KEY MESSAGES... - Chances of showers and thunderstorms will continue today, albeit chances are not as great as yesterday. - A secondary system will continue the experienced wet pattern, with a short dry break on Tuesday. - Cooling trend continues for the next few days, bringing temperatures 5-10 degrees below seasonal average. && .DISCUSSION... The upper level low that is associated with the unsettled weather pattern is at/near the northern California coast, continuing the wet pattern we`ve experienced the past few days. Overnight radar shows light pop-up showers through the Columbia Basin with a more widespread band area just southeast of the region in the Baker City area. Guidance continues to show a large swath of precipitation will continue to move north into the region, increasing PoP chances across the region by 50-70% Sunday going into Monday. This will be a more rain dominated system, with light to moderate snow falling in the Cascade crest, and parts of the Southern Blues. Chances of thunderstorms will be greatest in the eastern part of the region, specifically in the Wallowas in the afternoon to late afternoon hours Sunday. While there`s enough CAPE (250-500 J/kg) is available, sufficient heating is less compared to yesterday and HREF ensemble paintballs don`t support widespread thunderstorm activity. Thus, thunderstorm chances were capped at 15-20 percent chances to account for uncertainty in widespread development. Any convection chances will drop out going into Tuesday as we go into a quick dry break. NBM clusters are in great agreement that the trough will pass by Monday, allowing a weak ridge to bring zonal flow into the area. Afterwards, general consensus will bring a trough from the British Columbia/Gulf of Alaska region down into the PacNW late Tuesday/early Wednesday. Looking at clusters for the Tuesday evening timeframe, 100% of members keeps the Basin/Blue Mountains dry, but 75% want to introduce light to moderate snow fall rates into the Washington Cascades. Clusters are remaining in good agreement with the second trough will continue to bring moderate snow falls to the Cascades and Northern Blue Mountains along with light rain across the valley through Wednesday. Snow total via the NBM advertise 7-10" of snow in Snoqualmie and other general passes, while displaying 5-8" in Northern Blue Mountains. Chances of issuing an advisory in parts of the Cascades and Northern Blue Mountains increase, but will be reassessed over the next 24-hours. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... A band of precipitation is likely (60-80 percent chance) to bring light rain to RDM/BDN/PDT/ALW today into tonight with lower (30-50 percent) chances at DLS/PSC/YKM. Within the band, sub-VFR CIGs/VSBYs will be possible, but confidence in occurrence was too low (less than 50 percent) to include a mention in the 18Z TAFs. Winds will increase in magnitude from the west this afternoon and persist through the period at climatologically windy locations such as PDT and DLS. && .Preliminary Point Temps/PoPs... PDT 59 44 59 37 / 80 80 40 0 ALW 61 46 59 41 / 80 80 50 10 PSC 69 48 67 41 / 30 50 10 0 YKM 69 43 64 36 / 30 30 0 0 HRI 64 46 63 39 / 60 60 10 0 ELN 65 42 56 36 / 20 20 0 0 RDM 53 34 54 28 / 70 50 10 0 LGD 55 40 53 34 / 100 100 80 20 GCD 51 37 51 31 / 100 100 80 10 DLS 63 46 60 41 / 50 30 10 0 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...None. OR...None. && $$ DISCUSSION...95 AVIATION...86

001 FXUS65 KREV 120836 AFDREV Area Forecast Discussion National Weather Service Reno NV 136 AM PDT Sun Apr 12 2026 .KEY MESSAGES... * Colder today with rain and mountain snow producing winter travel impacts for the eastern Sierra. * A slight 10-20% chance for additional thunderstorms continue through the afternoon. * Periods of gusty winds this afternoon for western NV, eastern Lassen County, and east of the crests in Mono County. && .DISCUSSION... * As of 1:30 AM PDT, heavy snow continues in the eastern Sierra with rates of around 2"/hour. Rain along with snow to as low as 5,000 ft is also observed in western NV. Per latest high- resolution model guidance, the primary band of precipitation will exit the Tahoe Basin by around 3-5 AM, then eventually Mono County by around 5-7 AM. Spillover precipitation will continue across the Reno-Carson City-Minden areas through around 4-5 AM, and the inner-basin and ranges through 7-8 AM. * Snow showers will likely (>70%) persist all day in the Sierra, with likely (60%) rates around 0.5-1"/hour. With the main cold low moving overhead, instability will increase this afternoon. Latest HREF/Hi-Res models show lapse rates of 7-8C/km advecting into the region, with SBCAPES in the Sacramento/northern San Joaquin Valleys of ~250-500 J/kg. As such, we can`t rule out snowfall rates up to 2-3"/hour in heavier convective thunderstorms that move into the Sierra this afternoon. There is also a low (20%) chance for lightning today. We`re looking at additional snow totals of 12-14", with locally up to 18" along the highest peaks in heavier snow showers. * For western NV, eastern Lassen County, and Mono County east of the crests, the HREF and high-resolution models show that today will be mostly precipitation shadowed, with a slight 20-30% chance of showers. Southwest winds will increase this afternoon in these aforementioned areas, with gusts up to 35-45 mph. * A majority of the precipitation comes to an end later this evening. But, there remains a 30-50% chance for leftover showers through Monday afternoon in the Sierra primarily from the Tahoe Basin south into Mono County. * We`ll see a brief warmup Tuesday and Wednesday with highs near mid-April averages before another fast moving storm drops into the region. We can expect increasing winds, valley rain and mountain snow showers, followed by cooler than average temperatures through late next week. -McKellar && .AVIATION... * FL100 S-SW wind gusts to 50-60 kt today, resulting in widespread turbulence and periods of LLWS especially through tonight. Surface wind gusts at main terminals near 30 kt this afternoon. * Snow rates of 0.5-1"/hour, producing IFR/LIFR conditions, with spotty additional accumulations of 1-4" for Sierra terminals. We cannot rule out heavier snow rates of 2-3"/hour in convective snow showers. * Western NV terminals will primarily be rain, but could see some snow mix with rain this morning, producing MVFR/brief IFR conditions. Chances for any runway snow accumulation are less than 10% at KRNO/KCXP/KMEV. Isolated rain/snow/pellet showers return this afternoon-early evening with brief MVFR periods. -McKellar && .AVALANCHE... Moderate to heavy snow will continue to impact all avalanche center terrain through Sunday evening. * Snow totals, levels, and rates: Additional snow totals of 12-14", with locally up to 18" along the highest peaks in BAC terrain. Snow levels as of this writing are around 5000 ft, but are expected to rise to ~5500 ft this afternoon. Snowfall rates peak early this morning with rates of 2-3"/hr until about sunrise. Otherwise, rates of 0.5-1.5"/hr (highest for SAC terrain). Any convective-type snow bands that form could have rates up to 2-3"/hr. * SLRs and SWE: SLRs of 11-13:1 today, locally up to 15:1. Additional SWE (50th percentile) of 1-1.5", locally lower of 0.75-1.25" for ESAC terrain. * Thunder potential and wind gusts: 20-25% chance of thunder along the crest today, mainly this afternoon. Southwest wind gusts of 60- 80 mph today. -Giralte && .REV Watches/Warnings/Advisories... NV...Winter Storm Warning until 11 PM PDT Sunday NVZ002. CA...Winter Weather Advisory until 11 PM PDT Sunday CAZ071. Winter Storm Warning until 11 PM PDT Sunday CAZ072-073. && $$

353 FXUS66 KSTO 121916 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1216 PM PDT Sun Apr 12 2026 For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing. .KEY MESSAGES... - Active weather continues today with showers, heavy mountain snow, gusty winds, and thunderstorms. Lingering mountain showers into Monday. - Winter Storm Warning in effect for the Sierra and Southern Cascades through this evening. - Gradual warming and drying trend this week, except for light mountain showers Wednesday-Thursday. Breezy north to east winds return late week. && .DISCUSSION... ...Today - Monday... Active weather continues across the area today as an upper low moves overhead, bringing showers, heavy mountain snow, breezy winds, and thunderstorms to the area (25-40% probability). Latest radar imagery shows scattered showers and isolated thunderstorm activity through the Valley and foothills, with scattered snow in the mountains above 4000-5000 feet. Instability and shear profiles suggest the potential for isolated strong to severe thunderstorms this afternoon and evening. Latest Hi-Res guidance shows a line of showers and thunderstorms moving across the area into early this afternoon, with the potential for additional thunderstorms the rest of the afternoon and evening hours. As the low pressure moves through, colder air shifts down, which could bring a slightly increased chance for cold air funnels to the area during the day on Sunday. Additional storm threats include 1+ inch hail, accumulating hail, strong winds, and localized flooding from heavy rain. Stay alert and stay prepared by having a way to receive watches, warnings, and statement this afternoon and evening. Snow levels today will be around 4000-5000 feet, but could lower as low as 3500 feet in heavier convective showers. The heaviest snow is expected through this evening, with snowfall rates up to 1+ inch per hour. A Winter Storm Warning remains in effect for the northern Sierra and southern Cascades through 11 PM tonight. Additional snow accumulations of 6 to 12 inches are expected above 4500 feet, with up to 18 inches at the highest peaks. Minor snowfall accumulations up to 1 to 3 inches down to 4000 feet. Wind gusts as high as 40 mph. Mountain travel could be very difficult to impossible. Breezy southerly winds are expected through this afternoon, with gusts up to 20-30 mph within portions of the Valley, northeast foothills, and mountains. Lingering mountain showers are expected on Monday with minor impacts. In addition, the latest NBM suggests the potential for thunderstorm development over the Sierra south of Highway 88 (10-20% chance). Elsewhere, dry conditions are expected. ... Early to Late Week... A return to drier and warmer conditions is expected early to mid next week with drier northwest flow. Signal is there for brief showers and mountain snow showers Wednesday and Thursday as the next trough drops down over the Great Basin area. NBM suggests a 20-50% probability of precipitation greater than 0.25 inches over the mountains; highest chances in Shasta County. In addition, breezy northerly to easterly winds develop Thursday and Friday. The strongest winds are expected on Thursday, especially along and west of the I-5 corridor within the Sacramento Valley and mountains. && .AVIATION... Areas of MVFR and IFR conditions in showers or thunderstorms through late tonight. Thunderstorm chances increase this afternoon and evening and continue into the overnight hours. Winds may be erratic with direction and speed in and around thunderstorm activity. Surface winds will be breezy out of the south, with gusts up to 20-25 kts at times in the Valley through this afternoon and up to 30-35 kts over the mountains through tonight. Otherwise, surface winds less than 12 kts are expected on Monday. Lingering mountain snow showers are expected through Monday, with the potential for isolated thunderstorms over the Sierra in Tuolumne County tomorrow afternoon. && .STO WATCHES/WARNINGS/ADVISORIES... Winter Storm Warning until 11 PM PDT this evening for West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park. && $$

565 FXUS65 KMSO 120651 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 1251 AM MDT Sun Apr 12 2026 .DISCUSSION... KEY MESSAGES: - Today: Patchy morning fog gives way to afternoon showers and isolated thunderstorms. Main threats: Gusty winds to 40 mph and small hail. - Tonight-Monday: Transition to steady valley rain, slushy snow for passes above 5000 feet. - Wednesday-Thursday: Significant cold front. Snow levels dropping to 1,500-2,000 ft by Thursday morning. Light valley snow accumulations and moderate travel impacts on mountain passes. Today through Tuesday: Early morning showers have largely tapered off, watch for patchy dense valley fog through the mid-morning hours where clearing occurs. The focus now shifts to a closed upper-level low currently moving onto the Northern California coast. As this system moves inland, it is expected to weaken and fragment, sending a series of disturbances and a plume of Pacific moisture across the Northern Rockies. This will result in widespread showers and isolated thunderstorms developing late this morning and spreading south to north through the evening. Primary threats with any thunderstorms include: - Gusty outflow winds up to 40 mph. - Brief heavy rainfall and small hail. Precipitation will transition to a stratiform regime tonight into Monday morning as a weak surface low develops over southern Idaho and tracks into southwest Montana. A focused band of precipitation is expected to set up from north-central Idaho into west-central Montana. - QPF: Total moisture through Monday morning will range from 0.50" to 1.50" for Idaho and Clearwater counties, with 0.25" to 1.00" across west-central Montana. - Snow Levels: Levels will hover between 5,000 and 6000 feet by early Monday. High-elevation passes, including Lolo, Lost Trail, Homestake, along with Georgetown Lake may see 1-2 inches of slushy snow accumulation. By Monday afternoon, the region transitions to a westerly (zonal) flow that will persist through Tuesday. This pattern will keep light, terrain-driven showers in the forecast, particularly across northwest Montana, while lower elevations remain mostly dry. Wednesday through Friday: Confidence remains high that a potent cold front and associated low pressure system will impact the Northern Rockies beginning Wednesday. This system will usher in an unseasonably cold air mass, causing temperatures to drop significantly below seasonal averages. Snow levels are projected to plummet to 1,500-2,000 feet by Thursday morning. Latest guidance indicates a high probability for light snow accumulations at all elevations, including valley floors. Mountain passes and higher-elevation valleys especially in southwest Montana are the most likely to experience moderate travel impacts from accumulating snow during this period. && .AVIATION...A closed low moving onto the Northern California coast will break apart sending several disturbances and Pacific moisture across the Northern Rockies into Monday. A few showers continue early this morning but overall a diminishing trend. Patchy dense fog may impact terminal sites where areas of clearing occur early this morning. Showers become widespread from south to north late this morning through this evening. There is a potential for isolated thunderstorms mainly south of I-90. Watch for gusty winds to 35 kts, brief heavy rain, and small hail with any thunderstorms. Precipitation will become stratiform tonight into Monday morning along a band expected to stretch from west-central Montana into north-central Idaho as a weak surface low develops over southern Idaho and moves into southwest Montana. MVFR and occasional IFR conditions are likely to impact terminal sites tonight into Monday morning. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$

351 FXUS65 KBOI 121740 AFDBOI Area Forecast Discussion National Weather Service Boise ID 1140 AM MDT Sun Apr 12 2026 .UPDATE...Updated aviation discussion. && .KEY MESSAGES... - Isolated afternoon thunderstorms over southwest Idaho today with gusty outflow winds. - Slightly below normal temperatures with valley rain showers and mountain snow showers today through tomorrow morning. - Much cooler temperatures with periods of precipitation Wednesday through Friday. && .SHORT TERM /Through Tuesday Night/... Issued 313 AM MDT SUN APR 12 2026 Widespread precipitation is filling in south of the Snake River Valley as of 3AM MDT. This is the first push of precipitation along the outer band of the coastal low currently moving inland over northern California. This will push northward throughout the morning, bringing widespread rain below about 7000 feet MSL. Much cooler air will move in behind this initial push of precipitation later today. Temperatures will drop about 5-10 degrees with this cooler air, with snow levels dropping to 5500-6500 feet MSL by mid-morning. Weak instability exists mainly over high terrain in central Idaho down to the Magic Valley and near the ID-NV border. This will support a slight chance of thunderstorms late this morning through the early evening. Some storms could be strong with gusty outflow winds up to 50 mph thanks to elevated winds aloft with the incoming low. However, the best conditions for any of these stronger thunderstorms is over Eastern Idaho. As the low moves east of southern Idaho late Sunday, wraparound moisture and cooler northerly flow aloft will push a secondary band of precipitation into the region early Monday. This will bring much lower snow levels (4500-5500 feet MSL) and widespread precipitation to the region through Monday morning. Mountain valleys could see 1-3 inches of snow, mountain passes on US95 and ID21 could see up to 6 inches of snow, and high peaks over 8000 feet could see up to 12 inches of snow by Monday morning. Liquid totals from Sunday and Monday`s periods of precipitation will reach 0.50-1.0 inches of rain north of the Treasure Valley, with locally higher amounts over high terrain. Areas near the Nevada border will reach 0.10-0.25 inches of rain. Precipitation will taper off Monday evening as a brief dry period moves in on Tuesday. && .LONG TERM /Wednesday through Sunday/... Issued 313 AM MDT SUN APR 12 2026 Precipitation will return Wednesday, after Tuesday`s brief lull. As a low digs down the coast of British Columbia, widespread precipitation will set in across the area along a cold front. Precipitation will linger through Thursday as the main low moves over our area. Temperatures on Wednesday will be around 10 degrees below normal, cooling to 10-15 degrees below normal Thursday following the cold front. Rain won`t be the only precip type in play with this system. The 500mb heights are in the 5-15th percentile of climatology will support lowering snow levels, from 4.5-6.5 kft Wednesday afternoon to valleys floors come Thursday. Breezy winds will also accompany this system Wednesday/Thursday. Over the course of Wednesday through Thursday, liquid precipitation totals of 0.15-0.50 inches are expected throughout E-Oregon and within the Snake Plain, with 0.6-1.5 inches over the Boise/West Central Mountain zones and higher peaks elsewhere. Regarding snowfall, mountains will receive 8-14 inches by Thursday morning (1-4 inches in higher elevation mountain valleys), locations down to 4500 ft MSL will generally see under an inch of snow by Thursday morning. Through Thursday afternoon, locations down to 4500 ft can see additional amounts up to an inch, with 1-3 inches of additional snowfall over the West Central Mountains. Treasure Valley sites could also see snow flurries Thursday, although little to no accumulation is expected. A warming and drying trend will set in beyond Thursday, as the system moves east and ridging builds in across the area. Temperatures will return to near normal come Saturday, warming even more Sunday. The dry conditions don`t appear to last too long, as another system will impact the area come early next week. && .AVIATION /18Z Sunday through Monday/... Issued 1135 AM MDT SUN APR 12 2026 Widespread rain showers continue today. Isolated thunderstorms across the area could produce heavy rain and 25 mph outflows. A strong frontal passage in the Magic Valley will bring gusts up to 45 mph this afternoon. Precipitation moves north briefly tonight, before moving back south tomorrow morning. Surface winds: becoming S-W 10-20 kt with gusts to 20-30 kt. Winds aloft at 10kft MSL: SW 20-35 kt KBOI...Rain showers through the day bring MVFR conditions. There is a 10% chance of thunder this afternoon, which may bring gusty winds. Then a drier period overnight before more rain tomorrow morning. Surface winds variable in showers 5-15 kt, stray gusts up to 25 kt from distant storms are possible this afternoon. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...None. OR...None. && $$ www.weather.gov/Boise Interact with us via social media: www.facebook.com/NWSBoise www.x.com/NWSBoise AVIATION.....JM SHORT TERM...SA LONG TERM....NF

880 FXUS65 KLKN 121930 AFDLKN Area Forecast Discussion National Weather Service Elko NV Issued by National Weather Service Reno NV 1230 PM PDT Sun Apr 12 2026 .KEY MESSAGES... * Strong, gusty winds in Central Nevada today * Precipitation and mountain snow chances today through Monday along with cooler temperatures * Snow chances increase tonight into Monday morning * Fair weather Tuesday followed by another weather event over northern Nevada Wednesday through Thursday * Fair weather returns with warming temperatures Friday && .DISCUSSION... (This afternoon through next Sunday) WEATHER PATTERN OVERVIEW: Ongoing unsettled weather is expected to continue to bring precipitation and snow chances across northern and central Nevada through Monday. Much cooler temperatures today with freezing levels aloft will produce rain/snow mix at times this afternoon along the valleys yet is not expected to accumulate as surface temperatures reach into the 40s. Strong gusty winds this afternoon with speeds up to 15-25 mph, gusts 25-35 mph across the CWA with stronger winds over central Nevada with speeds up to 20-30 mph, gusts 40-50 mph is expected to dissipate this evening with winds dropping below 10 mph. Overnight, temperatures drop to below freezing with snow levels dropping below 5000 feet by early Monday morning, allowing snow to accumulate in the valleys. Accumulations remain light with valleys below 1 inch expected, however up to 1-2 inches possible over higher passes and summits (up to 2-3 inches possible along US-50). Precipitation will continue throughout Monday until the afternoon as the low pressure system that is bringing in the unsettled weather will exit out of Nevada to the east. Some lingering chances for rain and mountain snow still expected overnight. Tuesday, fair weather conditions return over Nevada with light winds and temperatures warming back into the 60s. This brief break in weather is expected to be short lived as another round of weather is expected to impact northern Nevada Wednesday, and push southeastward towards White Pine County by Thursday afternoon. Precipitation and mountain snow chances increase for northern Nevada and White Pine County. Winds are expected to elevate with the passing front across the entire CWA with speeds up to 15-25 mph, gusts 25-35 mph both Wednesday and Thursday. Temperatures are expected to drop below normal again with highs in the 50s Wednesday, then into the 40s by Thursday. Valley snow is expected to be very light, up to 1 inch as much of the precipitation will have passed by the time snow levels drop below 5000 feet across northern Nevada. White Pine County may see a little more snow in the valleys, with an inch or two as more precipitation is expected over the county by the time the cooler temperatures hit. By Thursday evening, the front will exit out of Nevada to the east, leaving calmer weather conditions behind with low temperatures in the teens. Friday, expected temperatures to remain below normal in the 40s. By the weekend models still show discrepancies on zonal flow or upper ridging, but remain consistent with warmer temperatures as highs are expected to reach back into the upper 60s by Sunday along with lighter winds. FORECAST CONFIDENCE & DEVIATIONS: High confidence of precipitation and mountain snow today through Monday. Moderate confidence of valley snow tonight. High confidence for strong gusty winds today. High confidence for fair weather Tuesday. Moderate confidence for another round of unsettling weather impacting northern Nevada and White Pine County Wednesday through Thursday. Moderate confidence of warmer temperatures returning over the weekend. No changes to NBM grids at this time. && .AVIATION... Periods of VCSH and -SHRA over all terminals today. Cooler temperatures aloft may still produce -SN conditions for KELY this afternoon. VFR conditions dominant but periods of MVFR or lower conditions possible with passing storms. Strong southwesterly/westerly winds this afternoon up to 15-20 kts, gusts 25-30 kts across all terminals with stronger winds over KELY at 20-30 kts, gusts 30-40 kts. Winds are expected to dissipate to below 10 kts this evening across all terminals. The cooler temperatures are expected to transition shower activities to snow overnight with some snow showers possible over all terminals except for KTPH, however probabilities are low so will remain out of the TAFs at this time. CIG levels will slightly improve this evening but remain between FL050 to FL100 with some passing storms dropping back to FL030-FL040 at times. && .LKN Watches/Warnings/Advisories... Wind Advisory until 5 PM PDT this afternoon NVZ035. && $$ DISCUSSION...97 AVIATION...97