713 FXUS66 KSEW 251008 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 308 AM PDT Fri Apr 25 2025 .SYNOPSIS...High pressure in place through today. Diverging flow aloft over the weekend will keep conditions dry through the weekend, but chances for precipitation increase early next week. Expect dry and warmer conditions to return by the middle of next week. && .SHORT TERM /TODAY THROUGH SUNDAY/...A near repeat of yesterday appears to be the story for today, with clear skies and highs in the low 70s throughout Puget Sound, with upper 50s to upper 60s along the coast. Coastal locations as well as the Strait of Juan de Fuca may see some stratus later in the morning, but it doesn`t appear to be long lived. The upper level pattern depicts a low pressure system moving into California through the weekend, putting the PNW in divergent flow aloft, while being still somewhat influenced by weak high pressure. Slightly cooler temperatures will be in place over the weekend, but will still be in the 60s. Sunday will see lower 60s as onshore flow is more noticeable and more stratus returns. .LONG TERM /MONDAY THROUGH THURSDAY/...A system dropping out of the Gulf of Alaska Monday night into Tuesday will be the next chance of rain for western Washington. Snow levels aren`t expected to dramatically drop, keeping a chance for light accumulations on the higher ridges in the forecast. The return to wet conditions isn`t long lived, as high pressure and warmer temperatures resume by the middle of the week. Kristell && .AVIATION...Upper level low offshore moving southeast towards Central California through Saturday morning. Southerly flow aloft becoming southeast this afternoon and light later tonight. In the lower levels increasing onshore flow late this afternoon and tonight. IFR ceilings along the Central and South Coast until 16z otherwise just some high clouds over the area today. IFR stratus will redevelop along the coast tonight and spread inland 09z-12z but will not get as far east as Olympia. KSEA...Just some high clouds into Saturday. Northerly winds 4 to 8 knots through 21z and 04z-08z, 10 to 14 knots 21z-04z. Winds becoming light southwesterly around 12z. Felton && .MARINE...Northerly flow will end today. An onshore flow pattern will develop later today through the weekend. High pressure will build over the waters later Sunday, with a weak weather system moving across the waters later Monday into Tuesday. Small craft advisory winds developing over the coastal waters later today or tonight. Small craft advisory winds continuing over the outer coastal waters into at least Saturday night with the winds easing slightly over the inner coastal waters. Choppy seas with the swell height in feet and the swell period in seconds equal will keep the small craft advisories up for the inner coastal waters through Saturday. Small craft advisory westerly winds both tonight and Saturday night for the Central and Eastern Strait of Juan de Fuca. Felton && .HYDROLOGY...No river flooding is expected over the next 7 days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory from 8 PM this evening to 5 AM PDT Saturday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory from 6 PM Saturday to 6 AM PDT Sunday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory from 6 PM this evening to 6 AM PDT Saturday for Coastal Waters From Cape Flattery To James Island Out 10 Nm. Small Craft Advisory from 3 PM this afternoon to 11 PM PDT this evening for Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm. Small Craft Advisory from 5 PM this afternoon to 6 AM PDT Sunday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm. && $$

748 FXUS66 KPQR 251024 AFDPQR Area Forecast Discussion National Weather Service Portland OR 324 AM PDT Fri Apr 25 2025 .SYNOPSIS...Warm and dry weather persist across most of the area through Saturday, with the exception of cooler and more showery conditions along the Oregon Cascades and into the Eugene area. Milder temperatures expected across the area Sunday into early next week, with another warm up looking likely mid to late next week. && .SHORT TERM...Through Saturday night...Satellite imagery shows high clouds streaming over the area this morning as an upper level trough digging offshore maintains a southerly feed of rich mid level moisture into the region, with a few embedded showers noted on radar primarily across Lane County and the central Oregon Coast as of 3 AM Friday. The upper trough will evolve into a cutoff low as it drops south to the vicinity of the Bay Area this evening and then moves across central CA on Saturday, with wrap around moisture on the northern periphery of the low maintaining a chance of showers across the southern extent of our area into the weekend. Expect the bulk of the shower activity today to remain focused across Lane and Linn Counties in closer proximity to the low, but it won`t be out of the question to see a few showers make it as far north as a Mt Hood to Salem line at times later this afternoon into tonight. QPF remains light as showers will be high based and have a substantial amount of dry air to overcome in the lower levels of the atmosphere. Thunder chances generally remain below 15% through the period as abundant cloud cover over the southern half of the area helps to limit instability, but a few lightning strikes will remain possible this afternoon, especially along the Lane County Cascades. The increased cloud cover and shower potential over Lane County will also contribute to a fairly sizable temperature gradient from south to north today, with the Eugene area likely to be in the low to mid 60s while the Portland area stays sunnier and remains in the mid to upper 70s. Temperatures will slowly moderate across the north this weekend, with highs in the Portland area closer to 70 on Saturday afternoon. /CB .LONG TERM...Sunday through Thursday...Shower activity finally begins to wane on Sunday as the upper low departs into the Great Basin, with broad onshore flow becoming established across the Pacific Northwest into early next week. This will drop temperatures much closer to seasonal normals with daytime highs in the low to mid 60s Sunday through Tuesday of next week. A passing shortwave trough will bring the chance for a few showers across the area later Monday into Tuesday, but rain amounts continue to look rather minimal with the possible exception of northern coastal areas. Beyond Tuesday, the majority of WPC ensemble clusters continue to favor a return of upper level ridging over the region mid to late next week, resulting in another warming trend as daytime highs potentially climb back up into the 70s for the latter half of next week. /CB && .AVIATION...VFR conditions continue to dominate most inland areas this morning, while lower stratus along the coast is resulting in MVFR ceilings. Expect these conditions along the coast and at some inland terminals to improve by late morning, around 19-20Z Friday. KONP is the exception, with a 70-80% chance to stay MVFR and a 30-50% chance to stay IFR through the entire TAF period. Other terminals may return to MVFR conditions by 03-06Z Saturday (40-60% chance of MVFR). Inland, mid to high clouds are increasing as a weak low pressure system slides in Northern California. Along the southern interior, isolated to scattered light rain showers move north through KEUG and KONP, with impacts to flight categories likely brief and limited. Otherwise, skies remain dry and visibilities remain unrestricted through the day across the Willamette Valley. Winds remain light across the region, generally less than 10 kt and mainly from the northwest to southwest. PDX AND APPROACHES...VFR continues today with increasing mid to high clouds through late morning. Surface flow remains light and variable early, then increases to around 7 kt and trends more northwesterly by early afternoon. ~Hall && .MARINE...Strong high pressure offshore continues to drive northerly winds across the coastal waters this morning. Winds will trend more north-northwesterly through the day, with wind speeds increasing by tonight. Gusts may approach 25 kt by this afternoon, particularly in the outer zones. This uptick in winds is coinciding with a building westerly swell, pushing combined seas toward 10 to 11 feet by Saturday. As a result, Small Craft Advisories will be in effect for all waters by this afternoon, with conditions likely persisting through at least Saturday. By late Saturday night and into Sunday, both winds and seasons will begin to ease as high pressure weakens slightly and moves inland. The start of next week looks to be rather quiet, with seas around 5 to 7 feet and wind gusts under 20 kt. ~Hall && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory from 2 AM Saturday to 2 AM PDT Sunday for PZZ251>253. Small Craft Advisory from 2 PM this afternoon to 2 AM PDT Sunday for PZZ271>273. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

874 FXUS66 KMFR 251038 AFDMFR Area Forecast Discussion National Weather Service Medford OR 338 AM PDT Fri Apr 25 2025 .DISCUSSION...GOES-18 air mass RGB imagery is showing a closed low spinning out around 40N and 313W or about 350 miles off Cape Mendocino early this morning. A short wave disturbance rode NNW yesterday afternoon, initiating some convection, mostly from western Siskiyou County up across Josephine County. But, there was also an isolated flash or two detected in SW Jackson County near Applegate and in far SW Douglas County west of Glendale. All totaled, various lightning networks showed about 50-70 CG flashes with the most active cell moving over Galice between 430 and 600 pm. The closed low will continue to dig southward along the California coast today, so we`ll be on the NE periphery of the low and a general SE-E flow aloft. Radar is showing a few widely scattered showers out there this morning, but expect activity to increase in coverage with daytime heating today as the atmosphere becomes more unstable. While it`s not out of the question there could be a rumble of thunder over the west side this afternoon, the best CAPE is from the Siskiyou Mtns/Cascades and over to the east side, but especially northern Klamath and also Lake County this afternoon/evening. It appears the most active cells (lightning-wise) will develop over Harney County to the east, but could graze eastern Lake as they move off to the NW. Rain amounts will be difficult to pin down due to the scattered nature of the showers. While some areas might miss out on the rain altogether, brief downpours are possible if you get underneath a heavier shower. The flow around the closed low re-orients as it cuts underneath us into California late tonight into Saturday. This will put our area under a deformation axis with the flow becoming more northeasterly with time. While we still expect some showers to linger west of the Cascades, the focus for showers will gradually shift to areas from the Cascades south and eastward during Saturday. This will likely be the coolest day with highs generally 55-65F, except in the 45-55F range over the mountains. Any snow will be confined to the highest elevations above 6000 feet. Models do show the best rainfall across SE sections of the CWA Saturday. Once again, exact precip amounts will vary widely, but a general forecast of 0.25-0.50 of an inch seems likely -- some more (mountains), some less (valleys). Areas west of the Cascades will do well to get 0.10 of an inch. With the low moving into the Great Basin Saturday night into Sunday, showers will gradually diminish from NW to SE. While still a little on the cool side, Sunday should be a nicer day (albeit a bit breezy) for outdoor activities. Guidance is showing a warming trend for next week. Monday will be dry and warmer with upper ridging taking hold. A mostly dry front (though there is a chance of showers, especially northern sections) will move through on Tuesday. This will be followed by an even stronger upper ridge for Wednesday and Thursday that promises to bring another bout of warmth with highs in the 80s here in Medford. Official forecast for Thursday is 84F here. The next upper trough and surface front are shown to move in sometime late next week with a chance of showers and thunderstorms. -Spilde && .AVIATION...25/12Z TAFs...Light, isolated showers continue over the forecast area early this morning with a mix of VFR and MVFR ceilings. Coastal areas may see periods of IFR ceilings this morning. Shower coverage increases this afternoon area wide. While there is still a slight risk of thunderstorms west of the Cascades, best instability is from the Siskiyous/Cascades eastward, especially out over northern Klamath/Lake counties. Thunderstorm activity should decrease tonight, but showers likely linger in many areas. Overall, expect VFR/MVFR to persist. Focus for showers shifts from Cascades south and east on Saturday. Still could be thunderstorms over there as well. Things calm down on Sunday. -Spilde && .MARINE...Updated 230 AM Friday, April 25, 2025...Mostly gentle north winds and low seas can be expected today. Northerly winds will increase tonight and steep short period waves will develop Saturday causing conditions hazardous to small craft. Steep seas persist Saturday night despite winds easing a bit. A thermal trough maintains northerly winds and steep seas, highest south of Cape Blanco Sunday into much of next week, with peak winds and waves in the afternoons and evenings. -Spilde && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory from 5 AM Saturday to 5 AM PDT Sunday for PZZ350-356-370-376. && $$ MAS/MAS/MAS

661 FXUS66 KEKA 242213 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 313 PM PDT Thu Apr 24 2025 .SYNOPSIS...Showers and isolated interior thunderstorms this afternoon and evening. Scattered to numerous showers are expected Friday through Saturday as the cutoff low moves southward. Below normal high temperatures are expected on Saturday. Followed by dry and warming trend Sunday through mid next week. && .DISCUSSION...An elongated upper level trough continue to dig southward along the West Coast. Coastal stratus remain blanketed the west coast this afternoon, while cumulus clouds has been developing over the interior higher terrain due to an elevating instability, especially around the Trinity Alps and Yolla Bolly. Latest doppler radar depicts light to moderate showers developing across Trinity County. There remain a potential (15-25%) for thunderstorms late this afternoon and evening. The best chance of thunderstorms will be over Trinity County. Tonight into Friday, the upper level trough split and becomes in a cutoff low off OR/CA coast. This will bring an increasing mid to high level moisture across the region. CAMs indicated isolated showers moving toward the north coast with the flow aloft shifting to south-southeast Friday morning. Scattered to numerous showers are expected Friday afternoon through Saturday as the cutoff low continue driving southward along the coast toward central California. Saturday`s high temperatures are forecasted to be 5 to 12 degrees below normal. ECMWF Extreme Forecast Index (EFI) highlight highs in the 60th-80th percentile below normal temperatures on Saturday, especially for the interior areas in southern Humboldt, interior Mendocino and Lake County. Overnight temperatures are expected to remain in the 40s across the valleys due to lingering low level moisture. Sunday clearing skies are expected and temperatures will start to warm back up again as a high pressure begin to builds in downstream in the wake of the trough. Inland areas are expected to see highs in the 60s. Sunday night into Monday morning is expected to be the coldest night and frost is possible in the colder valleys. High pressure continues to build in through the week with highs around 80 for the inland areas by Wednesday. && .AVIATION...A deep marine layer with tops up to 3500 feet is forecast to persist tonight into Friday. MVFR ceilings are forecast to prevail, however shallow moisture aad northwesterly surface flow will likely yield periods of IFR conditions in light precip tonight into Friday morning for coastal aerodromes. Cumulus convection and possible thunderstorms are also expected over the interior this afternoon and early evening. Wrap around moisture and rain may also result in MVFR conditions (20% chance) later tonight/Friday for location outside aerodrome airspace. DB && .MARINE...Wave spectrum remained heavily skewed toward shorter period bands (less 8 seconds) today. Multiple mid period wave bands were also present, centered near 14 and 11 seconds. Longer period W and SW swell groups (>15 seconds) were contributing much less to the total sea state which has been fluctuating near 5 ft. A lighter NW wind regime (5 to 15 kt) is forecast to continue for tonight and Friday with steep seas continuing on a downward trend. A weak surface low and cold frontal system will approach the outer waters tonight and continue to weaken the pressure gradient across NW California waters. Lighter winds around 5 to 15 kt with seas 5 ft or less are forecast on Friday. In the wake of the frontal system, northerly winds will begin to increase Friday night through Saturday as high pressure builds eastward toward the outer waters. Pressure gradients tighten some by Saturday, however there are considerable differences between the models and the rate at which northerly winds increase Saturday. NBM probability for wind gusts > 25 kt increase to 60-70% on Saturday, highest in the outer waters and downwind of Cape Mendocino. Wind gusts up to 30 kts are expected by Sunday over these same areas. Our spring time northerly wind regime will return this weekend and continue into at least early next week. There is a chance for gale force gusts over 34 kts (40% chance) on Monday, mainly for the afternoon south of Cape Mendocino. The duration and coverage appears quite limited and no highlights are necessary. DB && .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... None. && $$ 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

054 FXUS66 KMTR 250825 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 125 AM PDT Fri Apr 25 2025 ...New SYNOPSIS, SHORT TERM, LONG TERM... .SYNOPSIS... Issued at 124 AM PDT Fri Apr 25 2025 Cloudy and cool conditions prevail with chances for rain and isolated thunder later today into Saturday, with the risk concentrated across the Central Coast and adjacent offshore waters. Dry conditions and a warming trend resume after the rain moves out early on Sunday. && .SHORT TERM... (Today and tonight) Issued at 124 AM PDT Fri Apr 25 2025 Short Term Key Messages: -Cool and cloudy through the day -Rain chances arrive later today through Saturday -Isolated thunderstorms possible in southern Monterey and San Benito counties -Snow possible on the peaks of the Santa Lucias and Diablo ranges Cool and cloudy conditions are the story of the day with an upper level low continuing to deepen and approach the state. Satellite imagery and surface observations both support extensive and widespread cloudiness across the region and well into the interior. Some patches of clearing might be possible during the afternoon, but these will be generally short-lived and will dissipate with the approach of the low pressure system. High temperatures today and Saturday will range from the middle 50s to the lower 60s across the lower elevations, and the middle 40s to the lower 50s in the higher elevations, with breezy onshore winds developing this afternoon before a lull tonight into Saturday. The forecast track of the low has continued to shift southwards into San Luis Obispo and Santa Barbara Counties, with the main axis of rainfall shifting ever so slightly southwards as a result. The main thrust of rain is anticipated to arrive Friday evening and last into Saturday evening. Generally beneficial rainfall is still anticipated for the Central Coast, particularly as the region has missed out on most of the big rainstorms during the winter storm season, with rain totals of a tenth to a quarter of an inch in the Monterey Bay region and the Salinas Valley, and up to half an inch in the Santa Lucias. In Santa Cruz County and the Bay Area, rain totals are very light, up to a tenth of an inch at most, with the region around San Francisco and Oakland seeing a few hundredths of an inch of rain, if any at all, from the system. The chance for isolated convection remains across the southern halves of Monterey and San Benito counties late on Friday into Saturday, with the primary risk being isolated lightning strikes and brief accumulating hail. 700-500 mb lapse rates in the core of the upper level low will rise to around 7 to 7.5 C/km, allowing for CAPE values of around a few hundred J/kg, although the highest CAPE values remain displaced to SLO and Santa Barbara counties. As noted by the previous forecaster, a more northward track to the low would increase the risk, especially towards the northern halves of Monterey and San Benito Counties, while a more southward track moves the thunderstorm risk even further south. In addition to all that, the highest peaks of the Santa Lucia and Diablo ranges continue to see a chance for some accumulating snow, with the blended guidance suggesting around a 50% chance of at least 2 inches of snow on the mountaintops. We do not anticipate needing any winter weather products, as the snow accumulation remains confined to the highest peaks. && .LONG TERM... (Saturday through Thursday) Issued at 124 AM PDT Fri Apr 25 2025 Long Term Key Messages -Lingering showers through Sunday morning -Dry and warm conditions return after the showers clear. A few lingering showers could remain across the Central Coast through Sunday morning, with any additional accumulations limited to a few hundredths of an inch generally, and up to a tenth of an inch in favored mountain locations. Sunday remains rather cool, but a drying and warming trend returns to the region as upper level ridging returns to the western United States. The upcoming work week should see high temperatures reach the upper 70s to the lower 80s in the inland valleys, the upper 60s to middle 70s along the San Francisco Bay, and the upper 50s to the middle 60s near the Pacific coast. Longer term predictions support a lean towards temperatures above seasonal averages into the first week of May. && .AVIATION... (06Z TAFS) Issued at 909 PM PDT Thu Apr 24 2025 Mixed bag of MVFR and VFR cigs through out the TAF period as a weak upper low meanders along the West Coast. Expecting at least SCT conditions throughout period with cigs lifting slightly later in the period as the surface trough and rain showers move through the region. Complicated rain forecast for the next couple of days as we will be in a very moist, onshore flow, on-again-off-again shower regime. Not expecting any prolonged IFR due to showers, but can`t rule out a very brief heavy shower causing decreased vis, especially later in the period. Vicinity of SFO...Expecting to toe the line between MVFR/VFR cigs throughout the TAF period with some low-level clearing expected during the afternoon (mid-level cigs remain). The aforementioned complicated rainfall timing forecast ultimately lead to the decision to keep such a long prevailing group at the end of the TAF period. No notable change that can be forecasted with any confidence during the last period of the TAF. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...Cigs likely to persist through the period. VFR now, but will likely lower to MVFR overnight tonight. Some low-level clearing Friday afternoon as widely scattered rain showers move in. Mid-level cigs expected to begin to lower again at the end of the TAF period as the center of the upper low approaches the Central Coast. Rain chances increase just after the current TAF period. && .MARINE... (Tonight through next Wednesday) Issued at 909 PM PDT Thu Apr 24 2025 Light showers enter the forecast late Friday morning across the waters, with the best chances late evening into Saturday morning. Slight chance of isolated thunderstorms for waters generally south of Pigeon Point. Strong breeze and rough seas return across the waters late Saturday. Dreary conditions linger into Sunday morning before drier conditions set for next week. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...None. && $$ SHORT TERM...DialH LONG TERM....DialH AVIATION...Behringer MARINE...Behringer 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

393 FXUS66 KOTX 251025 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 325 AM PDT Fri Apr 25 2025 .KEY MESSAGES... -North Idaho and the eastern third of Washington will have chances for showers Sunday through Tuesday while central Washington will remain largely under the influence of a rain shadow. -Lightning is a possibility with showers Sunday and Tuesday. -Sunday through Tuesday will feature seasonably breezy west winds. && .SYNOPSIS... Warm and mainly dry weather is expected today and Saturday with high temperatures in the upper 60s and 70s. A breezy weather regime is expected Sunday through Tuesday with showers concentrated mainly over north Idaho. Warmer and drier weather will return late next week. && .DISCUSSION... Today and Saturday: Afternoon high temperatures will be about 10 degrees above average today and tomorrow with highs in the upper 60s to upper 70s. Washington and north Idaho will largely be missed by showers and thunderstorms the next 2 days as a low pressure system tracks south of our region. Our forecast carries a 20-30 percent chance of showers and thunderstorms Saturday afternoon/evening for the Blue Mountains, Camas Prairie, and mountains of Shoshone county, but the remainder of Washington and north Idaho have a dry forecast. A broad area of low pressure will make landfall over central California this evening and migrate across the Great Basin Saturday. There is decent ensemble agreement that a weak deformation band will extend as far north as the southern Idaho Panhandle and the Blue Mountains of southeast Washington on Saturday. With up to 200 J/Kg of surface based CAPE advertised by the High Resolution Ensemble Forecast (HREF), some of the cells may be capable of lightning, brief downpours, and small hail. Sunday: There is a 20 to 40 percent chance of showers and thunderstorms over the Idaho Panhandle and northeast Washington Sunday afternoon and evening. Showers will be favored in these areas due to the interaction between moisture wrapping around low pressure to our south and an incoming cold front. Due to the showery nature of precipitation Sunday afternoon and evening, rain amounts will be of the hit or miss variety. The National Blend of Models (NBM) generates a 20 percent chance of a tenth of an inch of precipitation for Sandpoint, Bonners Ferry, and Kellogg. Probabilities for a tenth of an inch are 10 percent or less along the WA/ID state line including Pullman, Spokane metro, and Pend Oreille county in northeast Washington. The most noticeable weather on Sunday across central Washington onto the Palouse and West Plains will be the gusty west/northwest winds. Sustained winds of 15 to 20 mph with gusts to 25 mph will be common across the Columbia Basin, Okanogan Valley, Palouse and West Plains. Localized gusts of 35 mph are advertised by members of the ECMWF ensemble for Wenatchee, and similar gusts usually occur around Vantage, Waterville, and Chelan as wind channels through the Cascade gaps. /GKoch Monday to Thursday: The Inland NW will remain breezy early next week, with another system pushing by with rain showers and a chance of t-storms, before drier weather briefly comes in. Monday a shortwave ridge migrates across the region, then the next system pushes by between Monday night into Tuesday. Monday will be mostly dry, except for slight shower chances near the Cascade crest. Clouds increase later in the day. Then rain chances start to increase across the area Monday night, especially overnight, into Tuesday as the frontal wave and PWATs of 150-180% of normal slides in. I did raise PoPs above the NBM overnight Monday into Tuesday morning. Then between Tuesday afternoon and Tuesday night PoPs start to decrease, retreating into the mountains. The lee of the Cascades and deeper basin will see the lowest risk for rain with that system, while the eastern third of WA and the ID Panhandle will have the highest risk. The best potential for wetting rain lays near the Cascade crest and over SE WA to the central Panhandle, where ensembles show the 24-hour probability of >=0.10" of rain around 50-80%. Instability with the upper trough will bring some t-storm risk near the east third of WA and ID Panhandle Tuesday afternoon/early evening, with the main risk for brief heavy downpours and gusty winds. Winds will be breezy Monday and Tuesday, with gusts of 20-30 mph in the unsheltered areas. The strongest will be near the lee of the Cascades into the Upper Columbia Basin and near and downwind of the Blue Mountains. Heading into Wednesday and Thursday, after some shower risk early Wednesday around the central Panhandle, the area dries out with high pressure building over the region. Expect more sun and lighter winds, except near the Cascades/Okanogan Valley with gusts near 10-20 mph. Another system starts to approach for the end of next week, with some rain chances approaching again for late Friday. Temperatures will largely be above normal, with highs in the 60s to mid-70s through Tuesday. Tuesday looks like the coolest day with the rain in the region. Heading into Wednesday and Thursday look for 60s and 70s, with some low 80s possible over the deeper basin and L-C Valley by Thursday. There could be some minor heat-related impacts to sensitive individuals Thursday (continuing into next Friday). Lows will largely be in the 40s and lower 50s, with some upper 30s in the sheltered valleys especially Tuesday night. I did add some patchy fog for late Tuesday night/early Wednesday AM in the sheltered valleys over NE WA and ID given the cooler temperatures combined with recent rain. /Solveig && .AVIATION... 12Z TAFS: VFR conditions and light, variable winds anticipated at every TAF site through the forecast period. Daytime mixing could bring breezy winds during the late the morning, early afternoon hours. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence in VFR conditions at TAF sites through the period. && .Preliminary Point Temps/PoPs... Spokane 45 74 44 71 44 68 / 0 10 10 10 20 0 Coeur d`Alene 42 72 43 69 42 65 / 0 20 10 20 20 0 Pullman 46 69 44 65 42 63 / 10 20 20 10 20 0 Lewiston 50 75 50 72 47 71 / 10 20 20 10 20 0 Colville 40 75 41 73 40 70 / 0 10 10 20 10 0 Sandpoint 43 71 45 68 42 64 / 0 20 20 40 30 10 Kellogg 45 70 47 66 44 62 / 0 30 20 40 30 10 Moses Lake 46 80 46 74 45 74 / 0 0 0 0 0 0 Wenatchee 50 78 48 72 48 70 / 0 10 0 0 0 0 Omak 46 78 45 73 45 73 / 0 0 0 0 0 0 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

714 FXUS66 KPDT 251018 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 318 AM PDT Fri Apr 25 2025 .SHORT TERM...Today through Sunday... 1. Isolated thunderstorms both today and Saturday afternoon 2. Increased winds Saturday afternoon 3. Return to dry conditions Sunday with lingering isolated mountain showers Current night time satellite shows clouds slowly making their way into the region from the south. Water vapor imagery shows there to be some moisture coming in along with it. However, ground observations remain devoid of precipitation at this time. Models show the upper level low to be off the coast near the OR/CA border. It has begun to influence the region with southerly flow aloft ushering both warm air advection as well as moisture. This is a pattern well known to the PacNW for bringing in an unstable atmosphere and bringing the area chances for thunderstorms along the eastern mountains. With the warm temperatures, mid level lapse rates 7.5-8.5 C/km, MUCAPE 300-500 J/kg and LIs of -2 to -4, one can not rule out some isolated thunderstorms. Looking at the NBM raw ensembles, they show 10-20% probabilities of thunderstorms Friday afternoon. Saturday, CAMs soundings show a stronger inverted V profile with higher MUCAPE values (400-600J/kg), lapse rates of 8-9 C/km and LIs of -3 to -4. Probabilities increase to 25-35% for thunderstorms along the eastern mountains Saturday. Models show as the upper level low begins to swing closer to the coast, surface gradients will tighten along the Cascades causing breezy conditions through the Cascade Gaps. 70-80% of the raw ensembles show Kittitas and the upper Yakima Valley will see gusts between 35-40 mph on Saturday. As for the Gorge, Simcoes and a portion the foothills of the southern Blues, 60-80% of the raw ensembles show these areas also seeing wind gusts of 35-40 mph. Lastly, models show that by Sunday, much of the affects of the upper level low will have diminished leaving the region under dry conditions. There will however be some lingering showers along the far eastern mountains of Grant and Wallowa Counties leaving the remainder of the region precipitation free. Bennese/90 .LONG TERM...Monday through Friday...Sensible weather concerns through the extended forecast will center on the passage of an upper level shortwave trough Tuesday, followed by upper level ridging building over the PacNW into the end of next week. Persistent breezy to locally gusty conditions will impact the Cascade gap areas early in the work week, while mainly mountain areas and adjacent foothills will see impacts from light showers late Monday through Tuesday (Confidence 60-85%). Otherwise, mostly dry conditions with light winds and a warming trend will develop over the forecast area through late next week (Confidence 45-70%). Monday will start with upper level ridging swinging over the region, with mostly dry conditions across the forecast area. Surface pressure gradients, on the other hand, will remain tightened across the Cascades and Columbia Basin Monday. This will result in gusts between 30-40mph through the Cascade gaps (40-60% chance >45mph gusts in the Kittitas valley) and gusts closer to 20-30mph across the Columbia Basin. By late Monday, the upper ridge will be flattened by an approaching shortwave trough, with light showers beginning to develop across the Cascade crest, spreading east Monday night through Tuesday. Ensemble guidance is in good agreement that the shortwave trough will bring mostly light rain showers to the mountains as it traverses the region, with a 40-50% chance of 0.05 inches of rain along the Blue Mountain foothills. That said, 41% of the ensemble cluster members (where about 90% of the GFS ensemble members are included) delay forecast area-wide precipitation chances to the late morning, whereas precipitation will have spread across the eastern half the forecast area before sunrise according to the remaining 59% of ensemble members. Otherwise, breezy conditions will continue through the Cascade gaps and into the Columbia Basin Tuesday. Wednesday through Thursday, there is good agreement amongst ensemble members that upper level ridging will build back over the PacNW. During this time, conditions will remain dry, temperatures will be warming well into the 70s with pockets of low 80s (confidence 55-70%), and winds will be light with locally breezy afternoons. That said, by Thursday afternoon, disagreement arises amongst members, specifically GFS and Canadian members versus those of the ECMWF. By late Thursday afternoon, members of the GFS and Canadian push the upper ridge axis well into eastern ID and western MT, with an upper shortwave trough lifting showers northeast across the forecast area Friday. As for the ECMWF members, the upper level ridge is slower to move east, resulting in the aforementioned shortwave trough weakening and not arriving until late Friday. At this time, confidence is moderate (50-60%) in the trough arriving sometime Friday, but timing/impacts are low (15-30%). Lawhorn/82 && .AVIATION...12Z TAFs...VFR conditions to prevail through the period. A system moving south of the area will produce rain showers that will impact sites RDM/BDN after 23Z, with showers continuing through the overnight hours. Worth mentioning is the potential for an isolated thunderstorm to develop within these showers, however confidence/chances are too low (<20%) to include at these sites at this time. Otherwise winds will be light, less than 12kts, through the period. Lawhorn/82 && .PRELIMINARY POINT TEMPS/POPS... PDT 75 49 74 45 / 0 20 10 10 ALW 76 51 72 48 / 0 10 20 10 PSC 81 47 80 46 / 0 0 0 0 YKM 78 49 80 46 / 0 0 0 0 HRI 79 49 78 46 / 0 10 10 0 ELN 76 48 75 47 / 0 0 0 0 RDM 69 43 67 35 / 30 50 20 10 LGD 72 47 69 44 / 10 30 40 20 GCD 72 46 66 42 / 20 60 70 40 DLS 79 52 72 44 / 0 10 10 0 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. && $$ SHORT TERM...90 LONG TERM....82 AVIATION...82

236 FXUS65 KREV 251020 AFDREV Area Forecast Discussion National Weather Service Reno NV 320 AM PDT Fri Apr 25 2025 .KEY MESSAGES... * A late season storm will bring mountain snow, valley rain, thunderstorms, gusty winds, and much cooler weather today and last through the weekend. * Prepare for occasional travel disruptions in and across the Sierra, as well as mountain passes in Mineral and Southern Lyon counties. * Warmer and drier weather prevails early next week with chances of showers and storms returning by midweek. && .DISCUSSION... Not too much change from the previous package tonight as the forecast appears to be on track. When looking at the latest upper air RAP analysis, the CWA has a generally southerly flow aloft with an upper low to the west off of the northern CA coast. Forecast guidance continues to project this western low to deepen and make its way down the CA coast today and going into early tomorrow before cutting eastward across central CA midday Saturday. This low then continues an east-northeast path potentially clipping the southern portion of the CWA (Mono and Mineral Counties) late Saturday and early Sunday before departing off to the east by Sunday evening. This upper air pattern will be the cause of mountain snow and valley rain showers with some thunderstorm chances. The pattern will also bring the end to the period of spring-like temperatures as colder temperatures are in the forecast. While the latest run of the HRRR shows light precipitation chances starting early this morning in Mineral County that look to travel northward, snow levels this morning will be around 7-7.5 kft allowing for the slight chance precipitation to take the form of light rain showers during the morning commute. Later today, models are showing up to around 500 J/kg of SBCAPE for areas closer to the OR border this afternoon which may allow for some isolated thunderstorms to occur. There is also a few hundred J/kg of SBCAPE generally south of US-50 this afternoon which could cause some rumbles of thunder as a shortwave disturbance moves through aloft. With the increased cloud cover that comes along with today`s precipitation chances, daytime high temperatures look to be around 8 to 10 degrees cooler than those seen in the region yesterday with less daytime time heating and cooler air moving in. For tonight, low temperatures in the Sierra communities expect to be chilly dropping to between around 20 to 30 degrees with the valley areas seeing overnight low temperatures in the middle 30s to lower 40s range. Mountain snow showers begin as early as this afternoon when snow levels start to drop before heavier snow arrives during the overnight hours tonight and going into Saturday morning. This is the period (late tonight through Saturday morning) when most of the snow will fall in the Sierra, White Mountains, and mountains of Mineral and Southern Lyon counties, and thus is when travel disruptions are most likely. Given that it is late April and roadways are warm following several days of spring warmth, it will be very difficult for snow to accumulate on roads during the daytime. A few heavier snow/pellet showers may be able to provide light accumulations locally Saturday afternoon. Snow showers will wrap up Sunday morning, bringing snow totals to 1-3 inches for lower Sierra communities (e.g., Truckee, South Lake), 3-6 inches along Sierra passes and Mammoth Lakes, and up to 8-12 inches along highest peaks of the Sierra, White Mountains, and Southern Lyon/Mineral County mountains. A Winter Weather Advisory has been issued in these areas for the duration of this snow event, so please check out weather.gov/rev/winter for more details on this advisory product. Elsewhere, a dusting to an inch of snow may result in minor travel impacts for foothill areas above 5500 feet (Virginia City). It is a good idea to get any weekend traveling done this morning, or you should be prepared for slick roads and delays if you must travel this weekend. Lower western Nevada valleys will likely see periods of light rain over the weekend with a 10-20% chance of isolated thunderstorms again on Saturday afternoon. Similar to storms on Friday, stronger thunderstorms will be capable of brief heavy downpours, gusty outflows, and occasional lightning. It will also be noticeably cooler on Saturday when daytime highs only reach the 40s and 50s. Temperatures will approach freezing again on Saturday night, so be sure to protect sensitive vegetation now. Beyond the weekend, extended forecast guidance currently shows warmer and drier weather to start the work week with the potential for showers and thunderstorms returning by midweek. -013/078 && .AVIATION... VFR conditions and generally light winds are expected at all TAF sites this morning before winds increase around 18Z when area shower chances increase. As snow levels drop going into the evening, precipitation type turns to snow particularly for the Sierra mountain terminals causing MVFR/IFR going into the night. Periods of sub-VFR conditions are expected as the mountain snow and valley rain chances persist through the weekend with LLWS and mountain wave turbulence possible. Western NV does see some slight (10-20%) potential for isolated thunderstorms during the afternoon hours today and tomorrow as well. -078 && .REV Watches/Warnings/Advisories... NV...Winter Weather Advisory from 5 PM this afternoon to 11 AM PDT Sunday NVZ001-002. CA...Winter Weather Advisory from 5 PM this afternoon to 11 AM PDT Sunday CAZ072-073. && $$

492 FXUS66 KSTO 242023 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 123 PM PDT Thu Apr 24 2025 For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing. .Discussion... .Synopsis... Chances for afternoon and evening showers are in store for interior NorCal into the early weekend, with Friday-Saturday as the best days for widespread precipitation and thunderstorm development. A cooling trend with mountain snow on Saturday is expected with minor travel impacts; A Winter Weather Advisory has been issued for locations above 6000 ft from Friday evening to Sunday morning. && .Key Messages... * Today: Cooling trend with breezy to gusty onshore winds -Probability of high temperatures 75 degrees F or higher: 45-80% in the central and northern Sacramento Valley -10-25% chance of isolated showers or thunderstorms this afternoon and evening across northern Sacramento Valley and surrounding terrain. * Friday-Weekend: -Cooling trend with breezy to gusty onshore winds continues -More widespread showers and thunderstorms (10-20%) starting Friday evening and continuing through the weekend. -Snow expected above 6000 feet late Friday through early Sunday -40-75% probability of 4 inches or more of snowfall above 6000 feet along Sierra/southern Cascades, 30-50% of 6 inches or more. * Monday-Wednesday: -Warming trend begins along with drier weather .Changes from previous forecast... * Winter Weather Advisory issued from 5pm Friday to 10am Sunday * Snow probabilities increased for Friday evening into early Sunday morning && .AVIATION... VFR conditions across interior NorCal next 24 hours. South to west winds up to 12 to 14 kt, with gusts up to around 20 kts for TAF sites. Marine stratus could bring local MVFR ceilings over the Sacramento metro area 14-18Z Friday. && .STO WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory from 5 PM Friday to 11 AM PDT Sunday for West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park. && $$

795 FXUS65 KMSO 250946 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 346 AM MDT Fri Apr 25 2025 .DISCUSSION... KEY MESSAGES: - Isolated to scattered showers and thunderstorms across southwest Montana, Lemhi County and southern Idaho county this afternoon. - Increased potential for scattered showers and thunderstorms across north-central Idaho, west-central and southwest Montana Saturday afternoon through late evening. - Showery Sunday with cold front into Monday morning. - Another disturbance Tuesday-Wednesday followed by 3-4 day period of ridging mid to late part of next week. The strongest east winds have mostly subsided across the region but elevated winds overnight in select areas has promoted sufficient mixing to inhibit cold pools from forming leading to relatively mild overnight temperatures. For example, continued east-southeast winds in Missoula have ranged from 10-15 mph and temperatures have struggled to drop out of the upper 40s for most of the overnight period whereas valley locations such as Kalispell, Hamilton, and Salmon Idaho have seen significantly less wind and have been able to cool off well into the 30s to start the day today. East winds will continue to be breezy today but nearly half as strong as what was felt and observed yesterday with the strongest winds being found in elevated terrain along exposed ridges as well as portions of far southwest Montana and Lemhi County. Most of this afternoon and evenings convective shower activity potential will remain near Lemhi County, southern Idaho county, and extreme southwest Montana lasting roughly through the midnight hour. Expect mostly clear skies for the first half of Saturday and temperatures continuing to run about 10 degrees above normal for this time of year. A large majority of hi-res models are now within range to capture the increased potential for scattered showers and thunderstorms coming from the south Saturday afternoon and evening especially south of I-90 but some storms may make it as far north as Lake and Flathead Counties and as far west as central portions of Sanders County. The main threats from these storms will be gusty outflow winds potentially in excess of 40 mph, briefly heavy rainfall, and small hail. Snow levels will steadily rise to above 8,000 ft late Saturday before starting their gradual descent into early next week. The forecast remains relatively unchanged for Sunday into early Monday with scattered to widespread rain showers putting down measurable precipitation across most of the area excluding far northwestern Montana. Areas east of US-93 will see the best chances for 24-hour rainfall totals exceeding one-quarter inch and increasing as you head farther east. A set of cold fronts will bring down temperatures, induce moderately strong west-northwest winds, and keep some shower activity in the forecast heading into Monday. Snow levels may fall to below 6,000 ft by Monday morning with lower snow levels to around 5,000ft near and east of the divide. Another disturbance is on track to bring more showers Tuesday into Wednesday morning. Heading into the middle to late part of next week, confidence remains high for ridging, warm temperatures, and dry conditions for at least a 3-4 day period beginning late Wednesday. Currently, there is a greater than 70% probability that daytime highs will exceed 70 degrees in many valley locations by next Thursday with even higher likelihoods by Friday. && .AVIATION... The upper level flow pattern will be transitioning to southern today as a weak low pressure moves off to the east and a stronger low pressure moves into to central California. Some moisture and energy will move northward causing a few showers across portions of central Idaho into southwest Montana. KSMN has the best chance of experience showers within the vicinity of the terminal. While the remainder of the terminals should have fair flying conditions. The Northern Rockies will still experience easterly winds throughout the day, then become light and variable after sunset. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$

140 FXUS65 KBOI 250817 AFDBOI Area Forecast Discussion National Weather Service Boise ID 217 AM MDT Fri Apr 25 2025 .SHORT TERM...Today through Sunday night...An upper level low will move onto the coast of northern CA today, then move east across NV Saturday into Sunday. Moisture advection and upper level diffluence will increase and then remain high through the weekend. Instability will increase over most of the area, bringing with it a slight chance of thunderstorms. CAPE values up to 600 J/kg will develop today - initially in the south but then spreading to most areas this evening. Saturday, the best instability will be over the north and west. As the upper low moves east into Utah Sunday, the best instability will shift east with it. Thunderstorms may contain small hail, and will have the potential for wind gusts to 50 mph today, and 45 mph Saturday and Sunday. Brief torrential rainfall is also possible. Temperatures will be 5 to 10 degrees above normal today and Saturday, cooling to near normal Sunday. Aside from wind gusts associated with strong showers and thunderstorms, easterly wind gusts to 25 mph are likely in/near the western Magic Valley and Camas Prairie today. Sunday, northwest winds will gust 25 to 40 mph in eastern Oregon, and 15 to 30 mph over most of SW Idaho, as a cold front moves through. .LONG TERM...Monday through Friday...Ridging aloft will build in as the upper low moves farther away to the SE Monday, bringing dry and seasonable weather. A shortwave trough will move in quickly Tuesday, bringing a 20-60% chance of showers (highest in the north). Yet another ridge is favored Wednesday and Thursday, so we should be dry and temps will warm up to a few degrees above normal Wednesday and as much as 10 degrees above normal Thursday. Although model confidence decreases by day 7 as usual, ensembles favor a trough forming to our west Thursday into Friday, putting our area in warm SW flow aloft and likely increasing moisture at mid and high levels. Therefore, we have introduced a chance of showers Friday. Temps are forecast to be 10-15 degrees above normal (near 80 in lower elevations) Friday. && .AVIATION...VFR with sct-bkn mid and high level clouds this morning. Showers and thunderstorms developing this afternoon with areas of MVFR and mountains obscured. Surface Winds: variable 5-10 kt. Winds aloft at 10kft: SE 10-20 kt. KBOI...VFR. SE 5-10 kt, becoming 10-15 kt after 15Z, and gusting to 20 kt after 20Z. WEEKEND OUTLOOK... VFR. Showers and a slight chance of afternoon/evening thunderstorms. Showers/thunderstorms may result in areas of MVFR, mountain obscuration, and produce gusty outflows. Surface winds increasing by Sunday, with gusts 30-40 kt Sunday afternoon near KBKE, up to 25 kt elsewhere. && .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...SP LONG TERM....SP AVIATION.....SP

247 FXUS65 KLKN 250954 AFDLKN Area Forecast Discussion National Weather Service Elko NV 254 AM PDT Fri Apr 25 2025 .SYNOPSIS...A strong and slow moving upper level low looks to bring periods of wind, rain and snow, and a few thunderstorm chances through Monday. Another system looks to clip northeast Nevada for Wednesday, with a third system poised to move through for the weekend, as the end of April and start of May look to remain active for the Silver State. && .SHORT TERM...Thursday through Friday Friday will be a day of transition as a large Pacific trough and associated upper low begin to slowly move onshore over northern California. This trough and low will be affecting the Silver state through at least Monday evening. This system impact will be first felt across central Nevada as the low will enhance the southwesterly flow aloft which will mix down to the surface, with winds picking up to 25 MPH to 35 MPH with gusts up to 50 MPH possible. A Wind Advisory remains in effect for northern Nye and White Pine Counties for Friday afternoon into the evening. Winds for the northwestern 2/3 of the State wont be as strong, with south to SW winds running 15 MPH to 25 MPH with gusts to 40 MPH possible. As for precipitation Friday, shower chances will first increase across Humboldt and Lander counties, with light rain showers developing Friday morning, with the low not making much progress Friday, the best chances at rainfall will be for the western third of the state. Friday afternoon thunderstorms will be possible along narrow strip along the Idaho/Oregon/Nevada border region of Humboldt and Elko Counties, with the best chances extending from Denio to Owyhee. The chances for storms are still low, at around 20% to 30%, with gusty winds and brief heavy rain being the main impacts. Precipitation chances will struggle to move east Friday with the eastern 2/3 of the state staying dry with just an increase in cloud cover thorough Saturday morning to show for it. Highs Friday with the increasing cloud cover will range in the middle 60s to middle 70s with central Nevada seeing the warmest temperatures. Friday night lows will be warmer than average with temperatures Saturday morning reaching the mid 30s to mid 40s. Nye County could see lows in the upper 20s to low 30s for the higher terrain as cloud cover wont be as well developed allowing for more radiational cooling. Saturday the upper low will start to slide east but again it will take its time doing so. Again the winds will be elevated to strong for central Nevada as south to southwest winds at 20 MPH to 35 MPH with gusts to 50 MPH will again be possible. However the area of peak winds will be smaller in area compared to Friday with eastern White Pine county seeing the strongest winds, still will need to watch to see if a Wind Advisory will be needed Saturday. Precipitation chances will slowly increase through the day Saturday from 20% to 80% when the main low finally crosses the Sierras by the Afternoon into Saturday evening. All modes of precipitation will be possible by Saturday evening with scattered rain showers and a few thunderstorms for eastern and northern Nevada, with rain/thunder and higher elevation snowfall for western and central Nevada closer to the upper low center. Snow levels will start high at about 8500 feet, but with the low center central Nevada will see snow levels fall to about 6000 feet by Saturday evening, and to 7000 feet for White Pine and the Rubies by midnight. Still daytime highs will have time to reach the upper 50s to upper 60s Saturday afternoon, and it wont be until Sunday morning that cooler air starts to filter in across central Nevada with lows in the upper 20s to upper 30s. .LONG TERM...Sunday through Thursday End of the weekend, look for chances for isolated rain/snow showers with some possible thunderstorms as the low pressure system moves over Nevada and heads northeast. Storms expected to dissipate overnight, leaving drier and clearer conditions starting into the next week. Highs in the 40s to 50s from the cold front with the snow chances staying in the overnight/early morning hours as lows in the morning at or below freezing at valley levels, and evening lows just above freezing at the valleys, which will aid in keeping snow at higher elevations and mountains, although valleys could see slush conditions. Westerly/southwesterly winds at 10-15 mph. Through the week, fairer weather conditions to start as the low pressure system moves out of the state early morning and a longwave weak trough remains over the southwest U.S. Monday, allowing temperatures to warm back into the 60s with northwesterly winds at 10-15 mph. Tuesday, models showing greater confidence that the longwave trough will aid in bringing in another weather front from the northwest, clipping into northeastern Nevada Tuesday. Chances for isolated showers are expected to stay across Elko County between 25-45% for some very light rain. This system will help keep temperatures cool in northern Nevada with highs in the 50s to 60s, while central Nevada stays on a warming trend reaching back into the 60s to 70s. Light northwesterly winds at 5-10 mph. Wednesday, the longwave trough remains with models showing the weather system deepening over the Great Basin, keeping chances for more light showers at 15-25% across central and eastern Nevada. Highs expected back on the warming trend across the region in the 60s to 70s with light southerly winds at or below 10 mph. Rest of the week, upper ridging moves back over southwestern U.S. bringing some relief from the weather, however not so much relief from the temperatures as they continue to rise into the 70s, with potential for 80s by the weekend. && .AVIATION...Mid-level moisture and weak instability over portions of NW Nevada result in a 10-20 percent chance of thunderstorms at KWMC and KBAM this afternoon. At this time not expecting TS at any of the other TAF terminals today. Winds will be gusty today, with strongest winds expected across central NV, including KTPH and KELY where gusts should reach 30-35kts. && .LKN Watches/Warnings/Advisories... Wind Advisory from 11 AM this morning to 8 PM PDT this evening Northeastern Nye...Northwestern Nye...White Pine. && $$ 98/97/96