624 FXUS66 KSEW 261102 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 302 AM PST Mon Jan 26 2026 .SYNOPSIS... Weak system moving through today. Upper level ridge offshore rebuilds tonight and moves inland. The ridge will be east of the Cascades Tuesday. A series of weather systems will move through Western Washington Tuesday night through the weekend. && .SHORT TERM /TODAY THROUGH WEDNESDAY/... Satellite imagery shows dissipating system moving into Southwest Washington this morning. Just middle and high level clouds with this feature. ASOS sites still reporting clear so clouds are above 12,000 feet. The cloud cover has limited the fog coverage with just patchy freezing fog over the South Puget Sound. Temperatures at 3 am/11z were in the 20s and lower 30s. Dissipating front falling apart over Western Washington today. Middle and high level clouds over the area for a partly sunny/mostly cloudy forecast. Highs in the mid to upper 40s. Upper level ridge offshore rebuilding this afternoon and moving inland tonight. Cloud cover thinning a little allowing some places to fall below freezing again Tuesday morning. Lows in the upper 20s to mid 30s. Upper level ridge axis east of the Cascades Tuesday. Southwesterly flow aloft on the backside of the ridge will spread more middle and high level clouds into the area making for another partly sunny/mostly cloudy forecast. Frontal system approaching Tuesday afternoon. Front east of 130W by 00z Wednesday but rain still offshore late in the afternoon. Highs near 50. Front splitting and weakening as it moves into Western Washington Tuesday night into Wednesday morning but not enough to prevent a little rain over the area. Looks like the rain will hold off in the Seattle area until after midnight. Another dry day Tuesday will tie the record long January dry streak in Seattle at 15 days. Chances of breaking the record not very good at all as the flow aloft consolidates over the Eastern Pacific and another system moves into Western Washington Wednesday night. Rain out ahead of this front reaching the coast midday with the rain spreading inland in the afternoon. Snow levels up around 5000 feet but easterly gradients across the Cascades could trap some cold air near the surface especially in the lower passes ( Stevens and Snoqualmie ) bringing up the possibility of freezing rain in the passes Wednesday. Cloudy skies will make for the warmest morning in awhile with lows in the upper 30s to mid 40s. Highs Wednesday near 50. As mentioned above the record January dry streak for Seattle is 15 days ( January 16-30, 1963 ). This streak has 4 days with a trace including 3 days with snow flurries. The current 13 day dry streak with zero precipitation, not even a trace, is the longest one on record in Seattle. There have been two 12 day streaks with zero precipitation in January in Seattle, January 11-22, 2013 and January 19-30, 1945. Felton && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... Model solutions continuing to trend wetter in the extended. Upper level ridge well to the east with southwesterly flow aloft over Western Washington. Back to our regularly scheduled programming for late January with another system Thursday followed by a front stalling over the area Friday. Large deep upper level trough developing between 140W and 150W Friday into Saturday. This will stall the next frontal system offshore Saturday and pump up a temporary upper level ridge. The ridge does not last long with the front arriving Sunday. Snow levels with the southwesterly flow aloft remaining between 5000 and 6000 feet for the most part. Highs in the lower to mid 50s and lows in the lower to mid 40s. Felton && .AVIATION... An upper level shortwave will move into the region and weaken this morning as a transient upper level ridge follows. Flow aloft will be westerly through much of the TAF period before becoming more southwesterly by Tuesday morning as the ridge moves inland. Mid to high cloud cover will continue to stream in overhead this morning and will help to limit fog development for much of the region. As such, most terminals remain VFR overnight, with the exception of KOLM in fog. Expect VFR conditions to continue for the majority of the area terminals through the TAF period, with a more gradual improvement back to VFR expected at KOLM in the afternoon. Winds will remain light out of the south/southeast for the majority of the area terminals at 6 kt or less. Terminals along the coast (KHQM) will be breezier, with winds generally persisting between 5-10 kt. KSEA...VFR through the TAF period, with mid to high clouds streaming overhead today. Winds will remain light, out of the south/southeast at 6 kt or less. 14 && .MARINE... High pressure will weaken across the waters today with a frontal system expected to move across the area on Tuesday. As a result, southerly winds will increase across the coastal waters this evening into Tuesday morning, with gusts expected to reach small craft strength at times. Winds will increase even more during the day on Tuesday, with gusts to gale likely for the coastal waters and possible for portions of the inland waters. Latest probabilistic guidance indicates about a 40-60 percent chance of gale gusts developing across the eastern Strait of Juan de Fuca and the Northern Inland Waters by Tuesday afternoon. The pattern then remains active through the remainder of the week as additional systems move into the area waters and likely bring additional rounds of headlines at times. Seas will persist between 3-6 ft today, before building to 11-15 ft on Tuesday. Seas will continue to build towards 18-20 ft Wednesday into Thursday before subsiding towards 10-15 ft. Seas will remain elevated, but generally within the 10-15 ft range heading into next weekend as additional systems move across the northeastern Pacific. 14 && .HYDROLOGY... Forecast precipitation amounts increasing over the last couple of model runs with snow levels rising to near 6000 feet in the Olympics by Thursday. Precipitation amounts over the south slopes of the Olympics Thursday into Saturday morning in the 3 to 5 inch range with a few 6 inch bullseyes. This amount of rain will push the Skokomish River in Mason county near flood stage Friday and Saturday. No river flooding on the remainder of the rivers in the next 7 days. Felton && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...None. && $$

595 FXUS66 KPQR 261148 AFDPQR Area Forecast Discussion National Weather Service Portland OR 348 AM PST Mon Jan 26 2026 .SYNOPSIS...Mostly dry conditions expected today before the pattern shifts. The first disturbance looks to impact the region late tonight into Tuesday with subsequent systems through the remainder of the week. Best chance for precipitation returns Tuesday/Wednesday, but some uncertainty remains with the exact timing and precipitation totals. && .SHORT TERM...Now through Wednesday Night...The dominant high pressure over the region is slowly losing hold as a pattern shift begins to take shape. A weak shortwave continues to move toward the PacNW and is expected bring widely scattered light rain showers to the Coast and Coast Range. Expecting a 10-20% PoP through the day across this portion of the area. While little to no precipitation is expected with this system as the atmosphere is very dry, this system will help to keep the atmosphere mixed as well as bring some slightly warmer air into the region. Borderline air stagnation conditions are expected through the Willamette Valley at times through Tuesday. Weak transport winds and low mixing heights are expected but may not persist for the required 48 hours for an advisory. An upper level trough over the NE Pacific is expected to shift eastward toward the West Coast through the day Tuesday. This will support a cold front that will approach the PacNW during the latter half of the day and the return of rain chances for the entire area. Precipitation is still expected to be on the lighter side throughout the Willamette Valley with totals Tuesday evening through Wednesday likely topping out around 0.10 inches or less for most locations. This system is expected to be on the warmer side with snow levels increasing towards 4500-5000 ft. This will keep snow isolated to the higher elevations within the Cascades. It should be noted that while models and their ensembles are in agreement that precipitation is on the way, there remains some uncertainty as to the exact start of the precipitation as well as how much will fall. -19/42 .LONG TERM...Thursday through Sunday...The pattern is expected to remain active through the end of the week and into the weekend as the upper level trough remains over the NE Pacific. This will support several disturbances that will impact the PacNW, bringing period of rain to most of the area and some snow to the high Cascades. While there is agreement among the models and ensembles that the pattern remains active, the exact details remain uncertain. -19 && .AVIATION...Expecting mainly VFR conditions across the area, only exception being possible MVFR stratus along the coast. Probability of MVFR CIGs is around 40-60% across the central coast neat KONP and will gradually spread northward to KAST by 18z. Variable winds inland overnight except near the western Columbia River Gorge and far eastern Portland Metro Area (KTTD), where tighter pressure gradients will maintain breezy easterly winds with gusts to up to 25 kt through the day. A weak shortwave trough moving over the region bring some light scattered showers along the coast and increased mid level cloud cover inland. Because of the dry lower atmosphere, some of these showers may dissipate before reaching the ground. The Willamette Valley should remain mostly dry. Winds will also gradually turn more southerly along the central Oregon coast and southern Valley in the afternoon. KPDX AND APPROACHES...VFR through the TAF period with high clouds and easterly winds around 10 kt or less. -19/27 && .MARINE...Southerly winds expected as a weak disturbance moves through the region. Chances for widespread and frequent wind gusts exceeding 21 kt (small craft wind gusts) are 20-40%. Seas remain around 3-5 ft at 14-16 sec through this evening. The next frontal system approaches the waters on Tuesday, bringing breezier southerly winds and building seas. Confidence has increased for Gales across the outer waters so the Small craft Advisory has been upgraded to a Gale Warning starting at 4 AM Tuesday. Have also added a Small Craft Advisory for the inner waters and Columbia River Bar starting at 4 AM Tuesday. Confidence is not as high for Gales closer to shore though some gusts meeting Gale criteria are possible, they are not expected to be widespread. A west-southwesterly swell will also move in Tuesday night into Wednesday and build seas to 10-13 ft, with a 20-30% chance of exceeding 15 feet. Expecting the wind wave to influence total seas a bit more so the probability of reaching 15 ft seems a bit low, expecting seas to be closer to this mark late Tuesday into Wednesday. Conditions remain active into Wednesday and beyond with Small Craft or Gale criteria likely being met through the rest of the week as more disturbance move across the waters. Also expecting seas to remain elevated in the mid teens, possibly upper teens by Wednesday night into Thursday. -19 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory from 4 AM to 10 PM PST Tuesday for PZZ210- 251>253. Small Craft Advisory from 10 PM this evening to 4 AM PST Tuesday for PZZ271>273. Gale Warning from 4 AM to 10 PM PST Tuesday for PZZ271>273. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

073 FXUS66 KMFR 261114 AFDMFR Area Forecast Discussion National Weather Service Medford OR 314 AM PST Mon Jan 26 2026 .DISCUSSION...A transient upper trough will swing by to the north of the area today, and, other than some mid and high level cloudiness, will largely go unnoticed. We`re not expecting any precipitation and after a chilly start this morning, we`ll have another milder afternoon with highs largely in the 50s west of the Cascades and in the mid to upper 40s over the East Side. Sunshine will be dimmed by the clouds, however. The upper ridge axis following today`s trough will move in quickly tonight and then shift east of the Cascades on Tuesday. This will open the door for the first decent Pacific front to arrive into the area in more than 2 weeks! This system packs some decent 925-850mb winds and will support a band of rain that will develop over the coastal waters late Tuesday morning/early Tuesday afternoon, and then move onshore Tuesday afternoon and evening. Gale force winds and very steep seas will accompany the front over the marine waters. There will also be gusty south winds along the coast, but we don`t think they`ll be high enough to warrant a high wind warning. Model pressure gradients are only -4 to -6 mb KOTH-KACV and while that supports peak wind gusts at the coastal headlands of 45-55 mph, that`s not quite there for a warning. Farther inland, the usual suspects will get breezy to windy on Tuesday (esp Shasta Valley). Model wind fields are showing potential for SSE wind gusts in the 45-50 mph range at Weed. Therefore, we issued a wind advisory there for most of Tuesday and into Tuesday evening. The front will lose its punch as it moves inland, so while we stand a good chance (~60-70%) of at least seeing a little rainfall here in the Rogue Valley, model guidance is generally showing less than 0.10 of an inch. With the exception of the Illinois Valley, some of the driest models have the precip completely skipping over the west wide valleys. The coast will get the most with 0.25-0.50 of an inch and locally up to 1.00 inch in the Curry Coast Range mountains. East Side areas largely miss out on the rain, but there is about a 30% chance of light rain Tuesday night. Snow amounts in the Cascades/Siskiyous will be minimal, generally an inch or less. A shortwave upper ridge will swing through on Wednesday with surface ridging over NE California. This should bring dry weather again to most of the CWA, but there`s a chance of rain along the coast and in the Cascades north of Highway 140 as a warm front lifts northward offshore. With the ridge axis shifting to the east Wednesday night, onshore flow could allow for slightly better precip chances along the coast into Thursday morning. But, this will all shift to the north again as the upper ridge amplifies near and east of the Cascades into Idaho Thursday afternoon and night. South to southwest flow aloft will be mostly parallel to the frontal system offshore and this will direct most of the precip associated with that to our north. Still, it will keep chance to likely PoPs along the coast late this week into the weekend. && .AVIATION...26/12Z TAFs...Mid and high level cloudiness is keeping fog from forming in most places early this morning. Patchy fog could still develop around sunrise, but it should be short-lived. Otherwise, expect VFR through the TAF period for all TAF sites. && .MARINE...Updated 300 AM PST Monday, January 26, 2026...Southerly winds will gradually increase today but winds and seas are expected to remain below advisory levels. South winds will increase further ahead of a cold front tonight, then even moreso on Tuesday. Recent model guidance is showing pretty solid probabilities of gales for most of the marine waters on Tuesday, so we decided to upgrade the Hazardous Seas Watch to a Gale Warning. Conditions peak on Tuesday with gales and very steep hazardous seas, then winds lower Tuesday night. Longer period west swell is expected to build into the waters late Wednesday into Thursday, peaking at around 13 to 17 ft at 15 seconds. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...Wind Advisory from 7 AM to 7 PM PST Tuesday for CAZ081. PACIFIC COASTAL WATERS...Small Craft Advisory from 4 AM to 10 AM PST Tuesday for PZZ350-356. Gale Warning from 10 AM to 10 PM PST Tuesday for PZZ350-356. Small Craft Advisory from 10 PM this evening to 4 AM PST Tuesday for PZZ370-376. Gale Warning from 4 AM to 10 PM PST Tuesday for PZZ370-376. && $$

240 FXUS66 KEKA 261008 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 208 AM PST Mon Jan 26 2026 .SYNOPSIS...Dry conditions will continue across the area today. A frontal boundary will bring gusty to strong south winds late tonight through Tuesday afternoon. Light to locally moderate showers on Tuesday through Tuesday night, with lingering showers through Wednesday afternoon. Rain chances returns Friday and through the weekend as another frontal system approaches from the west. && .KEY MESSAGES... * Gusty to strong south wind gusts from 35 to 50 mph are expected late tonight through Tuesday afternoon over the coastal headlands and exposed ridges in Del Norte and Humboldt. * Light to locally moderate showers are forecast on Tuesday, with lingering showers through Wednesday afternoon. && .DISCUSSION...Partly to mostly cloudy skies were observed across the northern portion of the area overnight as a weak shortwave moves through, while clear skies has developed for Mendocino and Lake counties. Low dewpoints, clear skies, and light winds are promoting efficient radiational cooling across the interior valleys. A Cold Weather Advisory is in effect until 9AM this morning for apparent temperatures at or below 30F degrees across the interior valleys in the southern portions of Mendocino and southern Lake counties. Opted not to include the interior valleys in Trinity due to slightly warmer conditions compared with the last 24 hours, where low temperatures in the upper 10s to low 20s were observed. High pressure build back quickly in the wake of the passing shortwave trough today, with conditions slightly warming up. The pattern shifts as the ridge finally breaks down giving way to a broad, upper-level trough moves into the NEPAC. A shortwave trough and cold front embedded to trough will approaches the area tonight through Tuesday. A cold front will traverse the area from west on Tuesday. This will bring light to locally moderate showers on Tuesday. Generally 0.10 to 0.50 inch is forecast from late Tuesday afternoon through Wednesday afternoon, with the bulk of the precipitation expected Tuesday afternoon through Tuesday night. Locally 1 to 1.5 inches is forecast over the south- southwest windward-facing terrain in Del Norte and Humboldt counties, with the highest amounts in the King Range. There are no major impacts expected with this weather system; if precipitation does occur, it would be more beneficial than impactful, especially after the recent dry spell. In addition, a frontal boundary will bring gusty to strong southerly winds late tonight through Tuesday afternoon. Gusts from 35 to 50 mph are likely over the coastal headlands and exposed ridges in Del Norte and Humboldt counties. As results, a Wind Advisory is in effect from 10 PM tonight through 4 PM PST Tuesday. High pressure is expected to rises over the area on Thursday, promoting dry weather and above normal temperatures. Ensembles models, and WPC Cluster Analysis suggests (25-35%) another shortwave trough may bring another chance of light showers for the northern portion of the area by late in the work week and/or through the weekend. The EPS and GEFS show the next weekend rain totals look to be below 0.1" for each 24 hours period Friday- Sunday. /ZVS && .AVIATION...(6Z TAFs)...VFR conditions are expected to prevail overnight with only high clouds expected. Some patchy ground fog is possible, but impacts to the terminals are expected to be minor. Any fog will dissipate shortly after sunrise. Southerly winds are likely across the area in the afternoon and could be breezy around CEC with gusts possibly up to 20 kts. JB && .MARINE...Southerly winds will increase across the waters today with widespread gusts of 20-25 kts likely by the afternoon. Winds continue to increase tonight into Tuesday, with gales likely in the outer waters and nearshore from Cape Mendocino northward. Steep seas of 6-10 ft are possible with these winds. Locally higher seas of up to 14 ft are possible in the northern outer waters. Winds ease below gale force Tuesday night and short period seas will start to subside. However, a large, long period westerly swell will arrive Wednesday afternoon into Thursday, bringing combined seas of 14-16 ft. Winds remain southerly for the remainder of the week and are likely to remain breezy north of Cape Mendocino. JB && .EKA WATCHES/WARNINGS/ADVISORIES... CA... Wind Advisory from 4 AM to 3 PM PST Tuesday for CAZ101. Wind Advisory from 1 AM to 3 PM PST Tuesday for CAZ102-105- 106. Wind Advisory from 10 PM Monday to 4 PM PST Tuesday for CAZ104. Cold Weather Advisory until 9 AM PST Monday for CAZ113-115. NORTHWEST CALIFORNIA COASTAL WATERS... Gale Warning from 3 AM to 3 PM PST Tuesday for PZZ450-470- 475. Small Craft Advisory from 3 AM to 3 PM PST Tuesday for PZZ455. Small Craft Advisory from 10 AM Monday to 3 AM PST Tuesday 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

117 FXUS66 KMTR 261325 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 525 AM PST Mon Jan 26 2026 ...New AVIATION... .KEY MESSAGES... Updated at 325 AM PST Mon Jan 26 2026 - Weak offshore winds continue through the middle of the week - Slight chance of rain Tuesday evening into Wednesday morning. Amounts generally less than 0.1" and focused in the North Bay. - Slight chance for rain next weekend continues trending drier && .SHORT TERM... Issued at 325 AM PST Mon Jan 26 2026 (Today and tonight) Progressive short wave troughing today will give way to progressive ridging tonight with the ridge axis shifting east of our area by early Tuesday morning. Patchy fog is expected to develop overnight in portions of the North Bay, East Bay and South Bay with coverage or duration not expected to necessitate an advisory attm. Southerly boundary layer winds combined with weak offshore surface winds will help lift temperatures a few degrees across the interior from Sundays highs, remaining right around the same along the coast. Cloudy skies this morning will give way to a mix of sun and clouds this afternoon, especially inland further helping the modest temperature increases. && .LONG TERM... Issued at 325 AM PST Mon Jan 26 2026 (Tuesday through Sunday) Extended forecast remains on track with rain chances increasing Tuesday evening, continuing through Wednesday morning. HiRes HRRR/RRFS focus primarily on the North Bay struggling to reach 0.10" with NBM PoPs possibly a little overdone with chances to the south as the best lift associated with the surface boundary continuing to shift north of our area. Drier conditions will persist for the remainder of the week with persistent ridging while the signal for another round of scattered light beneficial rain next weekend beginning to fade while temperatures trend warmer for the weekend, especially across the Central Coast. && .AVIATION... (12Z TAFS) Issued at 420 AM PST Mon Jan 26 2026 VFR through the TAF period for all sites but STS and LVK which will see spotty fog into the mid morning. High clouds continue to move through the region, but thin into the afternoon. Winds will mostly say light through the TAF period with wind directions being determined by mostly localized effects. Vicinity of SFO...VFR through the TAF period. Expect mostly light to moderate northeast winds through the afternoon. Winds become lighter into the evening night, before moderate southeast winds build early Tuesday. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...VFR through the TAF period. Light winds affect MRY through the forecast. Winds stay east to southeast through the morning and into the afternoon, with more moderate winds possible at SNS. Lighter west to northwest winds build in from the bay in the mid to late afternoon, but winds look to turn easterly in the early night. East-southeast winds build in the late night at SNS, becoming more moderate. && .MARINE... (Today through Saturday) Issued at 325 AM PST Mon Jan 26 2026 Mostly light winds continue to affect the waters with more moderate to breezy winds north of Point Reyes. Winds diminish on Wednesday and switch to northerly that night . Moderate seas will prevail through Tuesday. Conditions deteriorate Wednesday as seas build to become rough to very rough. Additionally, a weak passing storm system will bring light rain to the coastal waters early Tuesday morning through Wednesday morning. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...None. && $$ SHORT TERM...JM LONG TERM....JM AVIATION...Murdock MARINE...Murdock 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

301 FXUS66 KOTX 261307 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 507 AM PST Mon Jan 26 2026 .KEY MESSAGES... - Cold temperatures through Tuesday with overnight lows in the teens to low 20s - Quiet weather pattern through Tuesday - Incoming system will bring milder and wetter pattern starting Wednesday - Mountain Pass snow possible Wednesday && .SYNOPSIS... Cold temperatures will continue through Tuesday with overnight lows in the teens to lower 20s. A quiet weather pattern is expected through Tuesday before a milder and potentially wet pattern develops. Conditions turn warmer and wetter with midweek system. && .DISCUSSION... Today to Tuesday: The Inland NW will remain in dry pattern with cooler than normal temperatures today moderating to closer to normal tomorrow. A long-wave ridge is over the west, while a trough of low pressure is approaching the coast. Some patchy morning fog and clouds are expected near the sheltered Cascade valleys and Okanogan Valley today, with a risk over the sheltered northeast valleys briefly. At the same time a mid- level impulses rides in, bringing an increase in middle to high clouds before decreasing again later this evening into the Tuesday. Then the next trough starts to approach on Tuesday, leading to another increasing in clouds toward the afternoon. Some snow chances start into the Cascades Tuesday evening and a slight chance even starts to emerge into the Upper Columbia Basin overnight Tuesday. Wednesday to Sunday: The pattern starts to change as the offshore trough pushes in and carries in a series of shortwaves and taps into some increased moisture. A chance of mountain snow and lowland snow and rain develops over a good portion of the area Wednesday. Then heading into Thursday and Friday the precipitation potential increased to high chance to likely, with Friday currently have the overall highest PoPs. Chances back off some Saturday into Monday, but do not end entirely. Precipitation types will evolve between Thursday to Friday as well. A rain/snow mix or locally all snow will be possible Thursday morning, then milder air will lead to mainly lowland rain and a rain/snow mix in the mountains. That continues to be the case Saturday to Monday. As for snow amounts the best chances will be Wednesday around the Cascades where, around 2-4 inches is possible near places like Stevens Pass. Other passes are showing 1 inch or less. By Thursday the potential for accumulations through most passes becomes limited to less than an inch, if that and more likely in the morning. Some light accumulations are forecast in the higher Cascades valleys, such as the upper Methow valley near Mazama and westward and the upper Wenatchee Valley, near to west of Leavenworth and Plain; 0.5 to 2 inches will be possible here on Wednesday to early Thursday. Some light snow is also possible in the northeast WA and north ID valleys Wednesday and early Thursday, but accumulations are light at trace to less than half inch. Temperatures warm into the 30s to low 40s Wednesday, coldest near the Cascades valleys, the upper 30s and 40s Thursday and largely 40s thereafter Friday to Monday, save for some upper 30s in the sheltered valleys near the Cascades and some areas pushing near 50 in the L-C valley by Saturday. /Solveig && .AVIATION... 12Z TAFs: An influx of dry air is resulting in VFR skies for most terminals across the Inland NW. Satellite reveals very small patches of fog near larger water bodies with very little expansion between 8-12z. Additionally, a few banks of stratus between 18-26K ft AGL remain in the northern Okanogan Valley and few of the river valleys of the East Slopes. Otherwise, the upper-level ridge is flattening today with a weak disturbance moving through. This will result in passing mid and high clouds but continued dry conditions and light winds. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Moderate confidence for patchy fog near larger water bodies but low confidence for this to impact any terminals. Greatest risk will be around Chelan, Omak, and Winthrop airports where there are more established banks of stratus though increasing high clouds are now masking these clouds leading to low confidence where or if this activity will drift around. As of 12z, no runway observations are indicating restrictions. /sb ----------------------- 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 30 21 36 27 39 30 / 0 0 0 10 30 20 Coeur d`Alene 33 21 38 28 39 31 / 0 0 0 10 40 20 Pullman 34 26 40 31 42 32 / 0 0 0 10 30 10 Lewiston 37 28 43 33 46 35 / 0 0 0 0 10 0 Colville 30 18 33 25 37 28 / 0 0 0 10 30 30 Sandpoint 31 22 35 26 36 31 / 0 0 0 10 40 30 Kellogg 35 25 41 31 39 34 / 0 0 0 10 50 30 Moses Lake 33 23 39 26 39 29 / 0 0 0 10 10 10 Wenatchee 34 24 37 27 38 30 / 0 0 0 20 20 30 Omak 33 22 36 27 38 30 / 0 0 0 10 10 20 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

909 FXUS66 KPDT 261137 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 337 AM PST Mon Jan 26 2026 .DISCUSSION... Increasing cirrus has been observed on GOES satellite overnight as a southwesterly to westerly flow a as weak warm advection signal was observed over the region. Light winds will continue today as 1026hPa surface high pressure remains under a mean 1000-500 mb ridge. Mid level water vapor shows a distinct vorticity maximum near 45.3 lat and -127.5 lon, spreading east toward the Pac NW. Some of the CAM models signal very light simulated radar echos with this however the HREF Probability matched means are dry until Tuesday evening when a far more robust system supported with a fetch of Pacific moisture impinging on the Cascades for a chance of snow, rain and potential freezing rain Tuesday Night into Wednesday Morning. This is all of low confidence for the lower elevation areas as mid levels of model sounding look dry initially. Snow however is of higher confidence in the Cascades as the probabilities of precipitation are from 60 to 80 percent. With the recent cold temperatures and incoming snow and rain, freezing rain might be a risk (20% or less) for Tuesday night creating localized slippery condition in some valleys and lower elevations. The temperatures should be trending warmer through this period, mitigating the risk as rain becomes the dominant p-type (any icing risk should end after Wednesday mornings lows). From this point and on through the weekend, a gradual warming is indicated from NBMs highs incremental shift from highs Wednesday at least in the mid 40s (25th percentile) to the low 50s by the weekend. Likewise the higher end of the range of outcomes would be from 50 degrees to around 60 degrees (75th percentile) for the Columbia Basin. The 8 to 14 outlook strongly favors dry and warmer than normal with confidence of 50 to 60% for drier than normal conditions and 70-80% for warmer than normal weather. && .AVIATION...12Z TAFS...VFR conditions currently across all sites, which will stay the course through the period. A weak shortwave will flatten the upper level ridge this morning, bringing some high level clouds across the region. Skies become more broken and lift through the afternoon. The presence of the ridge will keep conditions dry and winds light (below 10 kts). 75 && .PRELIMINARY POINT TEMPS/POPS... PDT 37 24 37 26 / 0 0 0 10 ALW 36 25 38 29 / 0 0 0 20 PSC 35 23 38 26 / 0 0 0 10 YKM 35 24 37 26 / 0 0 0 10 HRI 35 23 36 26 / 0 0 0 10 ELN 32 23 33 25 / 0 0 0 20 RDM 48 25 46 28 / 0 0 0 10 LGD 40 25 42 31 / 0 0 0 20 GCD 45 25 46 29 / 0 0 0 20 DLS 40 28 39 30 / 0 0 0 30 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. && $$ DISCUSSION....71 AVIATION...75

543 FXUS65 KREV 260946 AFDREV Area Forecast Discussion National Weather Service Reno NV 146 AM PST Mon Jan 26 2026 .KEY MESSAGES... * A slow, gradual warming trend will bring back some valley inversions this week. * A weak weather system may bring chances for light snow showers, mainly along the Sierra Crest Tuesday night into Wednesday. * Dry conditions return with above normal temperatures through the latter half of the week ahead of possible precipitation chances during the weekend. && .DISCUSSION... The latest RAP analysis of the upper air pattern shows a shortwave trough over the northern CA coast this morning, which is embedded within a larger upper ridge covering the western CONUS. This shortwave feature is causing the increased high cloud cover seen over the region on current satellite imagery. The shortwave will also allow for ridge winds to gust up to around 30 mph during the day before it moves out of the region taking the cloud cover with it. Daytime highs for today expect to be in the middle 40s to lower 50s range in western NV and northeastern CA while Sierra communities look to be in the upper 30s to middle 40s range. Monday night`s low temperatures look to be similar to those experienced on Sunday night being generally in the 20s with some of the higher elevations in the Sierra dropping down to the teens. On Tuesday and Wednesday, forecast guidance shows another weak trough moving in from the Pacific over the region late Tuesday into early Wednesday. With this setup aloft, gustier ridge winds up to around 40 mph can be expected on Tuesday with cloud cover increasing going through the day. Blended guidance shows a 30-50% chance of light snow showers in northeastern CA west of US-395 on Tuesday evening going into early Wednesday morning. During the same time, there is ~10-20% chance of light snow showers in the Tahoe Basin going down to Mono County with the higher end chances seen at the Sierra crest. Anticipating little to no snowfall accumulation and thus no major impacts at this time. By Wednesday afternoon, the trough moves off to the east causing precipitation chances to taper off. For the remainder of the week, a high pressure ridge builds over the western CONUS allowing for dry conditions to return. The warming trend also continues with forecast daytime high temperatures being 5-10 degrees above normal. On Saturday, portions of western NV including the Reno metro area have around a 30-50% chance of a high temperature of 60 degrees or higher. However, the long-term guidance does show signs of the pattern changing on late Saturday into Sunday allowing for precipitation chances to return for northeastern CA and the Sierra. Will continue to monitor this going forward as there is still some good model uncertainty at this time. -078 && .AVIATION... VFR conditions and light winds are expected for all area TAF sites today. Ridge winds will gust up to around 25-30 kts in the afternoon with cloud cover expecting to decrease a bit later in the day. Light snow shower chances for NE CA and the Sierra seen in the forecast on Tuesday into Wednesday with increased ridge wind gusts up to around 35 kts. -078 && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$

646 FXUS66 KSTO 252007 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1207 PM PST Sun Jan 25 2026 .KEY MESSAGES... - Patchy fog in the Valley and lower foothills each morning - Slight chances for light showers mid week and again over the weekend mainly north of Interstate 80 && .DISCUSSION... ...Today through Monday... Current GOES-West visible satellite imagery illustrates low stratus across the Valley and lower foothills starting to gradually break up, and a swath of mid to high level clouds moving overhead across interior northern California on this Sunday afternoon. The cloud cover is keeping temperatures quite a bit cooler compared to 24 hours ago. The upper level pattern will feature upper level ridging with an embedded shortwave. Dry conditions will continue across the area the next couple days, with daily chances for patchy morning fog in the Valley and lower foothills. For tonight into Monday morning, high resolution guidance indicates a 50 to 70 percent chance of visibilities less than 1/2 mile in the northern San Joaquin Valley, and a 20 percent chance from Sacramento northward. Be sure to slow down and use low-beam headlights if fog is encountered while driving. ...Tuesday through the Weekend... By Tuesday afternoon, chances for light showers return to the area and continue into early Wednesday, mainly from Interstate 80 northward as an upper level trough deepens over the Eastern Pacific Ocean. Upper level ridging then looks to build back in for the late week timeframe with dry weather and morning fog. Ensemble guidance then indicates the potential for another system to approach the Pacific Northwest by the weekend with some additional chances for light precipitation once again mainly north of Interstate 80. Little to no impacts are expected from either system as forecast precipitation amounts are fairly light. && .AVIATION... General VFR conditions for much of interior NorCal except for patchy MVFR/IFR/LIFR conditions in fog and mist from 09Z-19Z Monday and again after 09Z Tuesday in the Valley, with best chances from Sacramento southward. Surface winds generally below 10 kts through the forecast period. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$

478 FXUS65 KMSO 261112 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 412 AM MST Mon Jan 26 2026 .DISCUSSION... KEY MESSAGES: - Pockets of light valley freezing rain/pass level snow later this week. - February is going to come in like a very mild lamb. Temperatures this morning range from one below at the Bert Mooney Airport in Butte to the single digits above zero and teens in western Montana, to the 20s in the lower valleys of north-central Idaho. Night-time satellite imagery depicts a few areas where fog and/or low clouds are trying to form over Lake Koocanusa, MacDonald Lake, Hungry Horse Reservoir and over the southern part of Flathead Lake. It feels a little strange to say this considering our mild winter so far, but highs today will run near average for late January. The average high for both Missoula and Butte is 33 degrees, and 32 degrees in Kalispell. For Orofino, Idaho, average highs are at 42 degrees (yesterday they warmed up to 38 degrees Fahrenheit). After a chilly start Tuesday, an upper level ridge will shift over the region providing sunshine to start with high clouds moving in later in the day. There may be a little bit more low cloud coverage or patchy fog in portions of northwest Montana. On Wednesday, the ridge of high pressure becomes increasingly "dirty" and weaker, with the passage of a weak disturbance that could bring a few light showers to the mountains, snow levels gradually rising to around 4000 feet. More waves of moisture will be possible Thursday through Saturday. With the recent cold spell, ground temperatures will be sub- freezing. This could set the stage for freezing rain or wintry mix. Black ice would be the biggest impact, especially at night. With the flow having more westerly wind, many locations could mix out and warm up well into the 30s and 40s, possibly hitting 50 degrees or higher in a few spots! Does this remind you a bit of our winter? February`s opening act features 40s and 50s, extending a winter that has leaned far more Pacific than Arctic. This is literally what the ensembles are showing...deep southwest flow across the eastern Pacific! && .AVIATION...VFR conditions will prevail across most of the Northern Rockies today under steady northwest flow. The primary exception remains Northwest Montana, where a few spots may have patchy fog or low clouds by a few lakes. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$

772 FXUS65 KBOI 260943 AFDBOI Area Forecast Discussion National Weather Service Boise ID 243 AM MST Mon Jan 26 2026 .SHORT TERM...Today through Wednesday night...A ridge will slowly build over the area with a slight warming trend Monday and Tuesday. High clouds will stream into the area at times, but continued dry. A temperature inversion strengthens on Monday and Tuesday. A weak cold front moves through the area on Wednesday, bringing a 10-30 percent chance of showers. Snow levels will be around 3000-4000`, with little to no accumulation expected. .LONG TERM...Thursday through Monday...A persistent upper level ridge will dominate much of the West through the extended period. The main storm track is expected to remain north of the forecast area in WA, northern Idaho, and Canada, though northeast Oregon and west-central Idaho will have a few opportunities to be clipped by precipitation. The highest chances (20-40%) will be Friday and Sunday/Monday as the passing troughs flatten the ridge, with lower chances (10-20%) on Thursday and Saturday. The wavering nature of the ridge has reduced forecast confidence in maximum temperatures for the extended period, as cold pools will attempt to form in the lower valleys over time. Overall, temperatures should see a gradual warming trend, with the possibility of reaching 5-10 degrees above normal temperatures area-wide. && .AVIATION...VFR. Thickening mid/high clouds today. Surface winds: variable up to 12kt. Winds aloft at 10kft MSL: W 10-20kt. KBOI...VFR. Surface winds: SE 5-10kt, then light/variable by late morning. && .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...KA LONG TERM....SH AVIATION.....SH

739 FXUS65 KLKN 260905 AFDLKN Area Forecast Discussion National Weather Service Elko NV 105 AM PST Mon Jan 26 2026 .KEY MESSAGES... Updated at 104 AM PST Mon Jan 26 2026 * Upper ridge returns over Nevada Tuesday * Warming temperature trend through the week * Dry weather will prevail through the week && .UPDATE... Issued at 104 AM PST Mon Jan 26 2026 No changes planned at this time, as forecast remains on track. && .DISCUSSION... (This afternoon through next Sunday) WEATHER PATTERN OVERVIEW: Upper level ridging moves back over the western United States, pushing the cold northwesterly flow eastward. Warming temperature trend takes hold with the upper ridging moving in starting Tuesday, increasing temperatures above normal for this time of year. Winds under the ridge will continue to be light and variable. A series of shortwaves is expected to move across northwestern United States by mid-week. Some model guidance shows the shortwave trough clipping northern Nevada along the state border Wednesday, however confidence remains low in precipitation at this time. High pressure to the south remains situated, keeping high probabilities of dry weather to continue. FORECAST CONFIDENCE & DEVIATIONS: No changes to the NBM Forecast. High confidence of warming temperatures trends and dry weather through the week. High confidence of upper ridging over Nevada. Low confidence of shortwave trough over northern Nevada. && .AVIATION... VFR conditions will persist through Monday afternoon under high pressure. No precipitation is expected through the period with light south-southeasterly winds at all terminals. && .LKN Watches/Warnings/Advisories... None. && $$ DISCUSSION...97 AVIATION...99