785 FXUS66 KSEW 290828 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 128 AM PDT Mon Jun 29 2026 .SYNOPSIS... A broad upper level trough will continue to produce unsettled and cool conditions across Western Washington into midweek along with chances for mainly mountain showers. Drier conditions and a modest warming trend are expected for the upcoming holiday weekend with a weak ridge of high pressure aloft. && .SHORT TERM /TODAY THROUGH WEDNESDAY/... Western Washington remains under the influence of broad upper troughing aloft and low level onshore flow. At the risk of sounding like a broken record, the forecast into midweek will largely mimic what we saw yesterday. Night and morning low clouds will stubbornly give way to a few peeks of late day sun over the interior lowlands and temperatures will be held several degrees below seasonal averages. A series of weak disturbances moving through the trough will occasionally kick off a shower over the higher terrain or squeeze out some coastal drizzle, but otherwise mainly dry conditions will prevail. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... The long term forecast period begins with much the same trend of cool unsettled conditions. A few of the operational model runs attempt to bring a weakening frontal system into the area on Thursday, but it may well encounter a building ridge offshore and result in little if any precipitation away from the coast and Olympic Peninsula. As we move toward the upcoming holiday weekend, ensembles are continuing the trend of previous runs which have upper troughing retreating into the northern Gulf of Alaska and at least some upper ridging rebuilding into the Pacific Northwest. There`s still a decent spread in solutions with regard to the strength of the ridging, but the overall ensemble averages suggest a return to temperatures near, if not a little above, seasonal norms for early July along with dry conditions. 27 && .AVIATION... Broad upper troughing over the interior West and an upper ridge centered well offshore will continue to produce north to northwest flow aloft over Western Washington. The low level flow remains onshore with widespread low level moisture intruding across the interior lowlands this morning. Widespread low MVFR and areas of IFR ceilings are expected through 18Z. Gradual improvement to low end VFR is expected near or after 21Z with MVFR ceilings continuing for coastal areas. Ceilings will deteriorate back to low MVFR or localized IFR once again tonight. KSEA...Low MVFR ceilings are expected to persist into midday before gradually lifting to low end VFR thresholds after around 21Z. Ceilings will fall back to MVFR late tonight. Surface winds south to southwesterly 7 to 10 knots rising to 9 to 12 knots later this evening. 27 && .MARINE... A broad surface ridge centered well offshore and lower pressure across the interior will remain the dominant weather pattern into midweek. This will maintain onshore flow with gusty northwesterlies and steep seas for the coastal waters. Diurnally driven westerly pushes will occur in the Strait of Juan de Fuca as well. The offshore ridge is expected to weaken during the later half of the week as a broad surface low approaches the central British Columbia coast. This will weaken onshore flow allowing winds over the coastal waters to ease and seas subside. 27 && .FIRE WEATHER... Little in the way of fire weather concerns remain in the picture into the week ahead with upper troughing maintaining cool conditions, high RH, and periodic chances for shower activity. A trend toward more seasonable temperatures is indicated toward late week, but a significant warm and dry spell is not expected in the next 7 days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory until 1 AM PDT early this morning for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory from 5 PM this afternoon to 2 AM PDT Tuesday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 5 PM PDT Tuesday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm- Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm. && $$

593 FXUS66 KPQR 290951 AFDPQR Area Forecast Discussion National Weather Service Portland OR 250 AM PDT Mon Jun 29 2026 .SYNOPSIS...Cool onshore flow and persistent cloud cover will maintain below average temperatures over the area through Thursday with little change in the overall weather pattern. Conditions will be mainly dry aside from a few stray sprinkles, mainly over higher terrain. A gradual warming trend develops Friday into the holiday weekend with inland valleys likely warming above 80 degrees by the 4th of July (70-90% chance). && .DISCUSSION...Now through Sunday night...Very little change is expected to the overall weather pattern Monday through Thursday. Model ensemble guidance continues to suggest cool onshore flow will persist, with extensive cloud cover each day during the morning and early to mid afternoon hours. This will keep temperatures cooler than average for this time of year with high temperatures ranging from the mid 60s to lower 70s each day, coolest at the coast. The latest forecast is trending mainly dry each day aside from a few stray sprinkles from time to time, mainly over higher terrain. Conditions will begin trending warmer Friday into the upcoming holiday weekend as weak upper level ridging develops. Although there is still a large degree of total model spread for temperatures, confidence has increased highs will warm to at least 80 degrees for inland valleys by the 4th of July (70-90% chance per the latest NBM guidance). Probabilities for highs of 80 degrees or warmer are similar on July 5th as well. Chances for highs of 90 degrees or warmer over the weekend are generally under 10%, except on Sunday when chances increase to 10-20%. That being said, chances for highs at or above 95 degrees are only 0-5%, suggesting the warmest possible scenario would be somewhere in the lower 90s. In addition, overnight lows are expected to be in the 50s, which will offer excellent relief for those without access to air conditioning regardless of whether or not we wind up in the 80s or lower 90s. -23 && .AVIATION...Satellite and surface weather observations from 09Z Monday depicted widespread cloud cover across northwest Oregon and southwest Washington. Ceilings are generally ranging between 2000-4000 feet, resulting in a mix of MVFR to low-end VFR flight conditions. MVFR ceilings are expected to become more predominant by 12Z Monday and then linger through Monday morning. After 19Z-21Z Monday, conditions inland look to improve back towards VFR with ceilings likely rising above 3500-4000 feet. Meanwhile, the coast will likely remain MVFR through the TAF periods (70-90% chance). KPDX AND APPROACHES...Ceilings are expected to hover between 2500-3000 feet Monday morning before rising above 4000 feet Monday afternoon. There is an 80-90% chance for ceilings at or below 3000 feet between 12-17Z Monday, lowering to a 50-60% chance between 18-20Z Monday. After 20Z, there is an 80-90% chance ceilings will lift above 4000 feet. Northwest winds around 5-10 kt are expected between 23Z Monday and 06Z Tuesday, with max wind gusts up to around 15 kt likely (75% chance). -23 && .MARINE...Northwest winds around 10 to 20 kt with steep seas near 7 to 9 ft at 9 seconds driven mainly by a fresh northwest swell will continue on Monday. Although weak high pressure will be building over the waters, northwest winds will continue to build the ongoing northwest swell with significant wave heights increasing slightly to 8 to 11 ft Monday afternoon. Seas will be highest over the outer waters. There is a 30-50% chance significant wave heights will peak slightly over 11 ft beyond 40 NM offshore on Monday, mainly to the north of the Columbia River Bar. Northwest winds and a fresh northwest swell then continues Tuesday through Wednesday morning, maintaining steep seas and hazardous conditions for small craft. Winds and seas will ease significantly Wednesday afternoon and evening, with benign conditions expected Thursday and Friday. Given steep seas and wind gusts upwards of 20 kt, a Small Craft Advisory is in effect for both the inner and outer waters through Tuesday evening. Rough bar conditions are also expected within the main channel of the Columbia River Bar late Monday morning through late Tuesday morning with steep seas around 7 to 10 ft at 9 seconds with northwest winds around 10 to 20 kt. A strong ebb current will occur Tuesday morning, which is when seas are expected to peak near 10 ft. As such, a Small Craft Advisory has been issued for the Columbia River Bar. -23 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory from 11 AM this morning to 11 AM PDT Tuesday for PZZ210. Small Craft Advisory until 11 PM PDT Tuesday for PZZ251>253- 271>273. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

079 FXUS66 KMFR 290913 AFDMFR Area Forecast Discussion National Weather Service Medford OR 213 AM PDT Mon Jun 29 2026 .DISCUSSION... Key Points: *Localized AM frost possible east of the Cascades this morning. *A gradual warming trend is expected through Thursday. Dry weather is likely. However, weak instability and moisture may bring some cumulus build ups to southeast Lake County on Tuesday. *Breezy to gusty north to northwest winds are expected in the afternoons and evenings through Thursday. *Friday into Saturday, a weak high pressure ridge will bring warmer than normal temperatures and continued dry weather. Temperatures will peak on Saturday with highs around 5 to 8 degrees above normal. *Temperatures trend slightly cooler on Sunday as the ridge shifts east and a trough approaches. An upper low centered to the northeast over northern Montana will continue to shift eastward while a broad trough remains over the Pacific Northwest. Cool morning temperatures are expected for areas east of the Cascades and localized or brief frost may develop in the Klamath Basin and surrounding areas. Otherwise, expected mild daytime temperatures across the area today with dry weather with breezy to gusty afternoon and evening winds. Temperatures trend slightly warmer Tuesday. Additionally, a shortwave moves into the area from the northwest on Tuesday. This will bring a marine push into coastal areas and the Umpqua basin Tuesday morning with a very low chance for light showers (5%). Some weak instability and mid level moisture may result in some cumulus buildups over far southeast Lake County on Tuesday afternoon but chances for any showers or thunderstorms are very low (5%). Additionally, enhanced afternoon/evening northwest winds are expected Tuesday. Warm and dry weather is expected Wednesday. Temperatures trend slight warmer into Thursday, reaching near normal values. Another weak shortwave trough moving north of the area may result in enhanced afternoon breezes on Thursday and some cumulus buildups, mainly east of the Cascades and in Northern California. However, chances for showers or thunderstorms are forecast to remain very low (5% or less). Friday into Saturday, weak ridging develops across the region. This will result in a stronger warming trend. Temperatures are expected to peak on Saturday with highs 5 to 8 degrees above normal. High temperatures in the upper 80s to mid 90s are likely for most inland valleys on Saturday. Then, the high pressure ridge moves eastward on Sunday as an upper trough pushes in from the northwest, resulting in a slightly cooling trend and a potential for enhanced northwest breezes on Sunday. && .AVIATION...29/12Z TAFs...Areas of MVFR/IFR conditions are expected through this morning along the coast, coastal mountains, into the Umpqua Basin as well as along the western slopes of the Cascades and foothills, where terrain obscurations are likely. Low clouds may also bank up against the Siskiyous and other west to north facing slopes. These lower flight conditions should gradually lift and burn off in the late morning, with VFR then prevailing through the rest of the day. MVFR is expected to return to the coast north of Cape Blanco Monday evening. && .MARINE...Updated 200 AM PDT Monday, June 28, 2026...Gusty north winds continue this morning, with very steep and hazardous seas from Gold Beach southward. North of these areas, incoming swell and north winds will maintain steep seas. This pattern will further strengthen Monday afternoon through Tuesday evening, with gales expected to develop south of Gold Beach. Elsewhere, northerly winds and strengthening northwest swell will continue steep seas through Tuesday evening. This pattern may persist into Wednesday. Winds ease slightly Thursday and Friday with improving conditions. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory until 11 PM PDT Tuesday for PZZ350-356-370-376. Hazardous Seas Warning until 11 AM PDT Monday for PZZ356-376. Gale Warning from 11 AM Monday to 11 PM PDT Tuesday for PZZ356- 376. && $$ CC/CC/CC

615 FXUS66 KEKA 290722 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 1222 AM PDT Mon Jun 29 2026 .SYNOPSIS...Seasonably warm and dry conditions will build through midweek with gusty north wind along shore each afternoon. && .KEY MESSAGES... -Gusty north winds each afternoon along shore through mid week. -Gradual warming and drying trend. -Temperatures turn hotter over the holiday weekend .DISCUSSION...Temperatures warm Monday behind a dry, southward passing shortwave disturbance. If there was available moisture with this passing perturbation, nocturnal thunderstorms would be possible. Interior valleys warm to the mid 80s to 90 degrees Monday afternoon. The northerly winds gusted in excess of 30 mph along the coast Sunday, with higher strength gusts along Cape Mendocino and Point St George. Very similar conditions as described will continue through mid week. The strong Pacific high responsible for this pattern begins breaking down Thursday. A weak trough may move through late Thursday through Friday, with little impact expected other than some potential light drizzle. Interior temperatures look to quickly rebound through next weekend behind the trough as a desert southwest high strengthens in advance of a stronger Pacific trough. There are high probabilities for high temperatures over 90 Saturday and Sunday for the interior valleys. Probabilities quickly lower for highs over 95 outside of a couple of the hottest valleys. This would result in some minor HeatRisk. && .AVIATION...Northerly winds eased overnight Sunday. The well-mixed and dry environment will extend the period of VFR conditions, with the exception of around Humboldt Bay. Some stratus formed around Humboldt Bay again, with MVFR to IFR ceiling levels. Coverage and duration of ceilings will be very limited from expected light easterly winds. Winds will continue to be the main concern as they quickly increase Monday, with gust 20 to 30 kts expected again at the coastal terminals. Higher gusts will occur near Point St George and CEC. && .MARINE...Strong northerly winds are over the waters while steep seas build in response. Gale Warnings remain over the outer waters, but gale conditions can be expected around Point St George and Cape Mendocino. The proximity of gale conditions to the inner zones will favor poorly modeled large to hazardous seas to pulse into the inner waters at times, as is being observed. The greatest threat for this will be over the late Monday, Tuesday, and Wednesday after maximum afternoon winds are achieved. A Hazardous Seas Warning has been issued to cover this threat given what was observed Sunday night. && .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 8 PM PDT this evening for PZZ450. Hazardous Seas Warning from 8 PM this evening to 11 AM PDT Wednesday for PZZ450. Small Craft Advisory until 11 PM PDT this evening for PZZ455. Hazardous Seas Warning from 11 PM this evening to 11 AM PDT Wednesday for PZZ455. Gale Warning until 11 AM PDT Wednesday for PZZ470-475. && $$ 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

696 FXUS66 KMTR 290708 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1208 AM PDT Mon Jun 29 2026 ...New SHORT TERM and LONG TERM... .KEY MESSAGES... Updated at 1200 PM PDT Sun Jun 28 2026 - Seasonally cool temperatures along with breezy afternoon winds persist into the middle of the week - Gradual warming trend begins towards the end of the upcoming work week - Increased risk of sneaker waves and strong rip currents through Wednesday morning along the Pacific coast && .SHORT TERM... Issued at 1200 AM PDT Mon Jun 29 2026 (Tonight through Tuesday) The upper level pattern over the are continues to predominately be dominated by troughing across the western United States. This will lead to seasonally cool temperatures through the work week. As the main trough system shifts to the east, a short wave trough will develop along the western periphery of the main trough following the west coast. The short wave trough will develop into a cut off low by Monday afternoon. Daytime highs today should be largely similar to those seen yesterday, with perhaps a few degrees of warming in the interior North and East Bays and a few degrees of cooling across the warmest spots of southern Monterey County. The risk of minor coastal flooding continues through Monday night along low-lying areas in the Pacific coast and the San Francisco and San Pablo Bays. The combination of thermal expansion within the Pacific ocean, a full moon on Monday, and southerly swell will account for a little over half a foot of surge over the astronomical tide. In addition, long-period southerly swell will continue to increase the risk for sneaker waves and strong rip currents along the Pacific coast, particularly at south and southwest facing beaches. A Beach Hazards Statement remains in effect through Wednesday morning, see the BEACHES section for more details. Never turn your back to the ocean! && .LONG TERM... Issued at 1200 AM PDT Mon Jun 29 2026 (Tuesday night through next Sunday) Troughing will continue through the work week transitioning to zonal flow for the upcoming weekend, allowing a gradual warming trend to start in time for Independence Day. Towards the beginning of next week, ensemble model clusters show agreement towards a ridge building up across the Western United States, with the interaction between the ridge and any troughing over the Eastern Pacific, which would modulate how impactful the ridge ends up for our region, still to be determined. && ..AVIATION... (06Z TAFS) Issued at 915 PM PDT Sun Jun 28 2026 Widespread VFR lasts into the night. Winds will reduce into the night, becoming light for most areas into Monday morning. Cloud cover returns to the Monterey Bay and HAF into the late night with MVFR CIGs, lower confidence in any MVFR cigs around the San Francisco Bay. This cloud cover erodes into the mid morning on Monday, leading to widespread VFR again. Vicinity of SFO...Mainly VFR through the TAF period with lower confidence in any CIGS reaching the airport near sunrise. Gusts cut off into the night and winds reduce slightly. Expect winds to become light into early Monday with breezy west winds returning that afternoon. MVFR cigs returning sometime Monday night with lower confidence on exact timing. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...Winds reduce into the evening as come low clouds begin to flow through the area. VFR this evening transitioning into MVFR as CIGs fill over the terminals sometime around 10-11z. These CIGs look to erode into late Monday morning around 16-18z. MVFR cigs returning sometime Monday night with lower confidence on exact timing. && .MARINE... (Tonight through next Saturday) Issued at 915 PM PDT Sun Jun 28 2026 West to northwest winds continue to stay strong, resulting in hazardous seas for small craft across the waters well into the work week. Gale force gusts will continue over the northern outer waters until early Monday morning before winds reduce some, but will likely return by at times through the middle of the week. Long period southwest swell will persist through the extended forecast. && .BEACHES... Updated at 1225 AM PDT Sun Jun 28 2026 A Beach Hazards Statement remains in effect for the Pacific Coast Beaches through Wednesday morning as long period southerly swell returns to the coast, creating an increased risk of sneaker waves and strong rip currents, especially for south and southwest facing beaches. Hazardous beach conditions are advertised, specifically for moderate to steeply sloped beaches along the Pacific Coast of the North Bay, San Mateo, Santa Cruz counties. Sneaker waves will run up the beach much farther than other waves, potentially catching beachgoers by surprise and resulting in people being swept into the water. Rip currents are strong enough to pull the strongest swimmers away from shore. Swim near a lifeguard if possible. Stay back from the beach, and away from jetties, piers, beachside rocks, and other infrastructure near the water. Never turn your back to the ocean! && .MTR WATCHES/WARNINGS/ADVISORIES... CA...Beach Hazards Statement through late Tuesday night for CAZ006- 505-509-529-530. PZ...Small Craft Advisory until 3 AM PDT Tuesday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm. Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt Pinos 0-10 nm. Small Craft Advisory until 9 AM PDT Monday for Pt Pinos to Pt Piedras Blancas 0-10 nm. Gale Warning until 3 AM PDT Tuesday for Pt Arena to Pt Reyes 10- 60 NM. && $$ SHORT TERM...Malarkey LONG TERM....Malarkey AVIATION...APR MARINE...APR 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

803 FXUS66 KOTX 290720 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 1220 AM PDT Mon Jun 29 2026 .KEY MESSAGES... - Wetting rains for eastern WA and north ID including over 1.00" of rain in the mountains of ID. - Thunderstorms in northeast WA and north ID Monday afternoon. && .SYNOPSIS... A band of rain is expected to impact much of the Inland Northwest overnight into Monday. On Monday afternoon and evening, scattered showers and isolated thunderstorms are expected over north ID and northeast WA. Cooler than normal conditions continue through the week with isolated mountain shower activity. By the weekend, a ridge will build bringing temperatures back up to normal in time for the holiday weekend. && .DISCUSSION... Monday through Tuesday: Bands of rain are moving through the Inland Northwest and will continue to do so through late Monday night, with the exception of the Northern Mountains and the Idaho Panhandle. For much of the area, these rains will be beneficial, with ~0.10 inches expected from Colville down to Spokane and eastward. Highest rainfall totals will be seen in the Idaho Panhandle due to its closer proximity to the upper level low. Rainfall totals in Shoshone County could reach 1.0 to 1.25 inches. This area will be monitored for any urban and small stream flooding. In addition to the rainfall, in the afternoon and evening there is a chance (20 to 30 percent) for thunderstorms due to elevated instability in the Northern Mountains, northern ID Panhandle. There is a lesser chance in the Spokane/Coeur d`Alene area (10 to 20 percent). High-res models favor a couple hundred Joules of CAPE, high PWATs of over 1 inch, and slow storm motion at around 10 kts. When combining high PWATs with low storm motions, main concerns with thunderstorms will be isolated heavy rainfall alongside small hail and lightning. This will be monitored closely for any flooding issues, alongside any storms that pass over burn scars. Maximum temperatures across the Inland Northwest remain lower than normal by 5-10 degrees and will remain in the low 70s to low 80s. Minimum temperatures also remain below normal in the low 40s to low 50s. Wednesday through Friday: The middle to the end of the work week will be relatively dry apart from showers in the mountains due to orographic lift as lower heights remain over the area. Temperatures will continue to be cooler than normal, though a weak ridge moving closer to the coast near the end of the week will allow for some warming. Holiday Weekend: Clusters near the holiday weekend begin showing signals for said ridge strengthening and moving through the forecast area, supporting a warmup. Saturday, July 4th, shows temperatures in the 80s alongside breezy winds and low relative humidity. On Sunday, temperatures are projected to get into the high 80s and low 90s, which will bring a return of isolated Moderate HeatRisk to the area. /AS && .AVIATION... 06Z TAFs: With the heavier rain moving in, ceilings are starting to drop, particularly at COE, where conditions briefly dropped to IFR. Conditions at COE and PUW have the highest chances of seeing IFR conditions, with ceilings dropping below 1000 feet through late this morning. Chances drop once PoPs lower around 18Z. GEG, SFF, have a 10-20% chance of dropping down to MVFR. By 18Z, PoPs largely lower to 30%. With the exception of PUW and GEG, winds have largely decreased with the start of the rain and will stay that way through tomorrow afternoon, where they look to pick up again around 18Z. EAT will see the strongest winds, with gusts 30-35kts already being observed. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Moderate to high confidence in timing of rain. Moderate confidence in ceilings dropping to MVFR/IFR at COE and PUW. Biggest forecast uncertainty lies with ceilings at GEG, SFF, and LWS. High- res models show a 10-30% chance for MVFR conditions. Most impactful alternate scenario would require amendments if ceilings drop below what is in the TAF. /AS ----------------------- 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 74 51 73 51 73 48 / 40 50 20 0 0 0 Coeur d`Alene 70 50 72 51 72 48 / 70 60 30 0 0 0 Pullman 66 48 70 44 70 43 / 80 30 30 0 0 0 Lewiston 72 51 78 53 78 52 / 90 30 30 0 0 0 Colville 82 52 72 47 74 44 / 40 80 70 30 20 10 Sandpoint 69 50 68 49 70 47 / 80 80 60 10 0 0 Kellogg 62 48 69 48 71 46 / 100 70 30 0 0 0 Moses Lake 84 54 81 50 80 48 / 30 10 0 0 0 0 Wenatchee 82 59 79 56 78 54 / 10 10 0 0 0 0 Omak 87 59 80 55 79 51 / 10 40 30 30 10 10 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

420 FXUS66 KPDT 290558 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 1058 PM PDT Sun Jun 28 2026 .KEY MESSAGES... - Widespread breezy to locally windy conditions tonight, strongest in the Kittitas Valley where a Wind Advisory remains in effect until 7 AM PDT - Morning showers in eastern portions of the Columbia Basin tomorrow - Below-normal temperatures, breezy to locally windy west winds, and occasional light mountain showers through the week && .SECOND EVENING UPDATE... Windy conditions persist through the Kittitas Valley, and are expected to continue through the night so have opted to extend the Wind Advisory until 7 AM PDT. && .EVENING UPDATE... A strong cross-Cascade pressure gradient has persisted this afternoon, peaking thus far at a 13-mb difference between PDX (Portland) and GEG (Spokane). Widespread breezy to windy westerly winds of 20-35 mph with gusts of 35-45 mph have expanded eastward across north-central Oregon, the lower Columbia Basin of Oregon, and the foothills of the Blue Mountains of Oregon. Have opted to expand the Wind Advisories to include the aforementioned zones through 11 PM this evening. && .DISCUSSION... Water vapor satellite imagery this afternoon shows a closed low centered along the MT/Alberta/Saskatchewan border, which facilitated a shortwave passage over the forecast area earlier today. Showers associated with this shortwave continue to push south across Wallowa, Union, and Grant counties this afternoon, with shower activity expected to diminish by early this evening. Otherwise, a surface low strengthening under the upper low has resulted in a tightening cross-Cascade pressure gradient, with breezy to locally windy westerly winds (15-30 mph with gusts 25-45 mph) spilling through the Cascade gaps and into the lower elevations. The strongest winds so far have been noted in portions of the Kittitas Valley and the eastern Columbia River Gorge, with gusts up to 50 mph and sustained winds around 30 mph. Monday through Thursday: A prolonged troughing pattern supported by periodic shortwave passages will remain over the PacNW through the workweek. The upper low will continue to meander east tonight through Monday, with the next round of shower activity expected to arrive across the eastern third of the forecast area with a shortwave passage late tonight through tomorrow morning. There is increasing confidence (55-75%) that showers will also impact eastern portions of the Columbia Basin (including Tri-Cities and Hermiston) tomorrow morning, with heaviest showers expected along the WA Blue Mountain foothills. Cluster ensemble guidance remains in good agreement of a shortwave trough diving down the AK/BC coastlines and across the PacNW Tues/Wed which will bring another round of light mountain rain showers (confidence 55-75%). Another shortwave trough is advertised to drop into the PacNW Thursday, however, over the last 24 hours, ensemble and deterministic guidance has trended drier with this system. Confidence in another round of light mountain showers for Thursday is low-mod (30-45%). Breezy winds will remain in place across the lower elevations and Cascade gaps through much of the work week as the troughing pattern persists overhead. After today, winds will generally be between 15-25 mph with gusts up to 40 mph throughout the week. Lastly, the persistent trough pattern will keep temperatures much cooler than normal through the week, with afternoon temperatures generally 5 to 15 degrees below normal (confidence 60-75%). This means that afternoon temperatures in the lower elevations will be in the 70s, with locally 80s, throughout much of the week. In the mountains, mid-elevations will generally be in the upper 50s to 60s, with lower to mid 50s in the high- elevations. Friday and Saturday: Late Friday into Saturday, ensemble cluster guidance is in agreement of the upper trough pushing east, with a quasi-zonal flow and weak upper level high pressure developing over the PacNW (confidence 40-65%). This will result in a warming trend into near to above normal temperatures across the forecast area (80s in the lower elevations, 60s and 70s mountains) with dry conditions and light winds by Saturday. Lawhorn/82 && .AVIATION /06Z TAFS THROUGH 06Z TUESDAY/... Predominantly VFR conditions and periods of breezy winds are forecast for the next 24 hours. A band of light rain is forecast to continue spreading southwest overnight into Monday morning, affecting sites ALW/PDT/PSC, and perhaps YKM. ALW has the best chance of sub-VFR CIGs and included a mention of MVFR conditions towards morning in light rain. && .Preliminary Point Temps/PoPs... PDT 53 75 52 76 / 10 50 10 0 ALW 54 76 57 77 / 70 80 10 10 PSC 57 81 58 82 / 20 50 10 0 YKM 59 83 56 83 / 10 20 10 0 HRI 55 79 56 79 / 0 40 10 0 ELN 54 75 53 74 / 20 20 0 0 RDM 42 72 41 74 / 0 0 10 0 LGD 50 70 50 75 / 30 80 10 10 GCD 46 72 48 77 / 0 20 10 0 DLS 57 73 56 72 / 0 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...Wind Advisory until 7 AM PDT Monday for WAZ026. OR...None. && $$ EVENING UPDATE...86 DISCUSSION...82 AVIATION...86

025 FXUS65 KREV 290831 AFDREV Area Forecast Discussion National Weather Service Reno NV 131 AM PDT Mon Jun 29 2026 .KEY MESSAGES... * Cool and pleasant conditions this morning, lows near freezing in the Sierra valleys. * Afternoon breezes return for the second half of this week with near normal summer temperatures and dry conditions for the holiday weekend. && .DISCUSSION... Another chilly start, with another lobe of low pressure for today spinning into the base of the trough that has been positioned over the Western US over the weekend. The main concern for today will be the 10-30% chance for a shower over the Sierra this afternoon. There is a 15% chance that any given shower that forms could contain lightning, small hail or gusty winds, so if you are planning to recreate in the mountains south of US-50, keep an eye on the sky and plan ahead for shelter in case a storm develops. Instability is on the lower end, with MUCAPE values ranging 100-300 J/kg, but with a little help from topography, that may be enough to support storm development. Moisture will be limited with this low circulation, with PWAT only checking in around 0.3 inches, so these storms will offer little precipitation. Most CAMs are showing storms developing along the western slopes of the Sierra around 11 AM to noon today, then due to a lack of steering associated with light upper winds, the storms meander in a south- southwest direction after initiation. This would keep the majority of the action from the crest and westward, but there are a few solutions that show storms firing along and slightly east of the crest. After this wave moves through, we remain under a general troughing pattern that will help to keep the temperatures closer to average into late week. The troughing pattern will allow for another shortwave to move through the meridional flow around Thursday, which will also be moisture-starved. The main influence we expect will be an enhanced zephyr for Thursday afternoon. In the longer range forecast, the ridge builds back in over the west for the holiday weekend, bringing mid 90s to near 100 to western Nevada valleys and mid to upper 80s across the Sierra valleys. Long range guidance also hints at yet another low carving a path across the Pacific Northwest for the week following the holiday, but confidence is low due to varying solutions at this time scale. && .AVIATION... * VFR conditions this morning, with potential (10-30%) for afternoon showers and storms to develop for KTVL/KBAN/KMMH between 19-20z. Showers and storms that develop may contain lightning, and may produce terrain obscurations. HRICH && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$

855 FXUS66 KSTO 281815 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1115 AM PDT Sun Jun 28 2026 .KEY MESSAGES... - Elevated fire weather conditions Sunday-Monday due to increased North winds across portions of the Valley. - Chances for isolated mountain thunderstorms Monday afternoon/evening south of I-80. - Cooler temperatures and breezy onshore flow expected Tuesday onward. && .DISCUSSION... As an upper level trough continues its exit from California and into the Great Basin area, north winds continue today and Monday through the western portions of the Sacramento Valley & Delta. This also brings fire weather conditions Sunday into Monday. Strongest winds and most fire weather conditions peaked this morning, but gusty conditions will linger through the afternoon and overnight into Monday. Additionally on Monday, a lobe of energy phasing out of the exiting trough will bring isolated mountain thunderstorm chances (10-15%) south of I-80 in the afternoon and evening. Tuesday and beyond, another cooling trend is expected which will result in below normal temperatures across interior NorCal and periods of breezy onshore flow in the forecast. By the end of the week, troughing will phase out of the area and temperatures will return to more normal for the time of year. The holiday weekend currently looks like it will see Valley highs in the 90s, with decent overnight cooling (especially near the Delta) which will provide relief from the warmer daytime temps. && .AVIATION... VFR conditions are expected over the next 24 hours. North winds with gusts 15 to 25 kts in the Valley until 00Z Monday. West- southwest gusts 15 to 20 kts in the Delta from 21Z Sunday until 09Z Monday. North winds increase in the northern Sac Valley after 06Z Monday. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$

236 FXUS65 KMSO 290852 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 252 AM MDT Mon Jun 29 2026 .DISCUSSION... KEY MESSAGES: - Potential for rapidly rising water levels in small creeks and streams across northwest Montana this afternoon and evening, due to heavy rain showers and thunderstorms. Localized rockfall and/or debris flows are possible as well. - Hypothermia risk continues through the day Monday in the backcountry. - Near seasonable temperatures along with daily thunderstorm chances are possible Tuesday through Friday of next week. Satellite and radar observations show a large low pressure system spinning over central Montana, near Great Falls this morning, that is spreading moderate to heavy rainfall across western Montana. Moderate snowfall is also occurring for elevations above 6,500 feet across the Northern Rockies. As such, Winter Storm Warnings remain in effect through mid-morning. Along with impassable backcountry Forest Service roads, the risk for hypothermia for unprepared recreationists remains due to the cold and wet conditions. Rainfall totals over the past 36 hours ending this morning have ranged between 0.30 to 1.50 inches across the Northern Rockies. The highest totals have fallen in the terrain along the Continental Divide from the Canadian Border, south to Butte. Several inches of snow have also been reported across the region with 6 inches at Lost Trail Pass, 7 inches near Porters Corner in Granite County, Montana, and 8 inches near Cobalt in Lemhi County, Idaho. Widespread moderate to heavy rain at times will continue through mid-morning today. Rainfall rates this morning will generally range from 0.10 to 0.20 inches per hour. These rates are expected to increase later this afternoon and evening, when heavy showers and thunderstorms develop between 2 PM and 10 PM. During this time, rates of 0.50 inches per hour or more are expected under the heavier showers. The latest forecast ensemble models show additional rainfall totals through Tuesday morning ranging between 0.75 and 1.50 inches across the Northern Rockies. The higher terrain along the Continental Divide and the Mission Range has additional expected amounts of 1 to 2 inches. Some of these totals account for the potential for heavy rainfall with scattered thunderstorms this afternoon and evening, so not everyone will see these higher amounts. This will be on top of what has already fallen. Small streams and creeks may experience rapid rises this evening with the expected additional rain, along with the threat for rockfall and/or debris flows. The highest risk for these impacts is most likely to occur in the higher terrain along the divide and the Mission Range, north of Missoula. Additional Flood Watches may need to be issued this morning to account for these risks. Given the widespread precipitation, fog and low clouds could cause travel issues across the region Tuesday morning. The lingering moisture will also support scattered showers later in the day. A moderating trend is expected later this week with possible thunderstorms each day. With the added low-level moisture from all the rain, this could enhance instability each day. && .AVIATION...Satellite and radar observations show a large low pressure system spinning over central Montana, near Great Falls this morning, that is spreading moderate to heavy rainfall across western Montana. Moderate snowfall is also occurring for elevations above 6,500 feet across the Northern Rockies. The widespread rainfall will periodically reduce visibility and ceiling for all aviation sites throughout the day, along with mountain obscurations. This afternoon heavier showers and scattered thunderstorms are expected to develop between 29/2000Z and 30/0400Z this evening. These showers and thunderstorms will be capable of producing short bursts of 0.50" per hour rainfall rates as they pass overhead. KGPI, KMSO, and KHRF will have the highest risk for these heavier showers. Given the recent widespread precipitation, fog and low clouds could cause travel issues across the region Tuesday morning. Afternoon showers will remain in the forecast, through the widespread persistent precipitation will have ended by sunrise Tuesday. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...Winter Storm Warning until 9 AM MDT this morning for Bitterroot/Sapphire Mountains...Butte/Blackfoot Region. Flood Watch until 3 AM MDT early this morning for Flathead/Mission Valleys...Potomac/Seeley Lake Region... West Glacier Region. Lake Wind Advisory until 3 AM MDT early this morning for Flathead/Mission Valleys. ID...Winter Storm Warning until 9 AM MDT this morning for Eastern Lemhi County...Western Lemhi County. && $$

387 FXUS65 KBOI 290859 AFDBOI Area Forecast Discussion National Weather Service Boise ID 259 AM MDT Mon Jun 29 2026 .KEY MESSAGES... - Showers and isolated thunderstorms are expected this afternoon and evening across central Idaho. - Precipitation will persist across the West Central mountains through today, with another round of showers returning Tuesday afternoon. - Warmer and drier conditions Tuesday through Thursday. && .SHORT TERM /Through Wednesday Night/... The area of low pressure that has been the main driver of our weather over the past several days has shifted to the northeast over western Montana. Wrap-around moisture is streaming into the area from the north with radar imagery indicating light precipitation across northeast Oregon and central/northern Idaho. These showers are expected to work through the area today, especially across the central Idaho mountains. Enough instability will be present this afternoon/evening for an isolated thunderstorm as well. The low is expected to continue to track east of the region with diminishing shower chances Tuesday into Wednesday. Temperatures will warm 5-10 degrees each day. && .LONG TERM /Thursday through Monday/... A broad scale trough of low pressure is expected to linger over the region through the week, with gradual warming expected as atmospheric heights begin to rise. Temperatures will approach and exceed average values by late week and there is an outside chance of temperatures exceeding 95 degrees (10% chance) for lower elevations by Friday. Model trends indicate a drying trend as well throughout the week. && .AVIATION /06Z Monday through Tuesday/... Issued 1128 PM MDT SUN JUN 28 2026 Generally VFR. Light precip mainly across northeast OR and central ID through morning, then isolated/scattered showers across the area Monday afternoon. MVFR/IFR in mtn showers, with light snow above 8kft MSL. Mtns obscured. Surface winds: SW-NW 5-15 kt. Gusts to 15- 25 kt Monday afternoon. Winds aloft at 10kft MSL: NW 15-30 kt. KBOI...VFR. Periods of light rain before Mon/09Z, then a 15% chance of light rain returning Monday afternoon. Foothills obscured with SCT-BKN clouds between 5000-7000 ft AGL. Surface winds: light and variable overnight, transitioning to NW 5-12 kt mid/late morning. Afternoon gusts around 20 kt. && .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 SHORT TERM...MC LONG TERM....MC AVIATION.....SH

380 FXUS65 KLKN 290913 AFDLKN Area Forecast Discussion National Weather Service Elko NV 213 AM PDT Mon Jun 29 2026 .KEY MESSAGES... * Frost and Freeze headlines are in effect through 8:00 AM PDT this morning * Light showers linger across Elko County this morning * Dry this afternoon with high temperatures in the 70s * Showers and thunderstorms Wednesday across NE Nevada * Temperatures trend warmer through the week && .DISCUSSION... (Today through next Monday) WEATHER PATTERN OVERVIEW: The region is transitioning out of an active weekend that brought strong winds and cold air to northern and central Nevada. Frost advisories and freeze warnings are in effect through 8 AM this morning across portions of the area, as unseasonable cold overnight temperatures threaten sensitive vegetation. Mainly across Elko County, a 15% chance of light rain showers will also linger through the mid-morning hours today before clearing out. Unseasonably cool today with daytime high temperatures staying in the mid to upper 70s. A steady warming trend brings seasonal 80-degree temperatures back to the region mid-week, but it will also introduce a brief uptick in instability Wednesday afternoon. Elko County holds the highest likelihood for active weather with a 20% chance of isolated thunderstorms. Surrounding counties will have a 10% chance of thunderstorms including the Winnemucca and Ely areas. Into Nye County including Tonopah thunderstorm chances on Wednesday are only around 5%. Quiet and dry conditions are expected for the remainder of the week along with a continued warming trend which will send highs back into the upper 80s to low 90s by Saturday. FORECAST CONFIDENCE & DEVIATIONS: Confidence is moderate to high regarding the cold temperatures this morning. Low to moderate confidence for isolated thunderstorms across portions of northeast Nevada Wednesday afternoon. No changes were made to NBM grids at this time. && .AVIATION... VFR conditions at all TAF terminals today. Sustained winds today will generally be less than 10 knots, with gusts to 15 knots. && .FIRE WEATHER... Light showers across mainly Elko County ending this morning. Much lighter winds today, up to around 10 mph with gusts to around 15 mph. Wednesday there will be a 5 to 15 percent chance of showers and thunderstorm, highest across Elko County, lowest across Central Nevada zones. Temperatures trend warmer through the week. && .LKN Watches/Warnings/Advisories... Freeze Warning until 8 AM PDT this morning NVZ031-034-035-037>039. Frost Advisory until 8 AM PDT this morning NVZ036. && $$ DISCUSSION...96 AVIATION...96 FIRE WEATHER...96