Aikyam-Lab/Synoptic-Bench huggingface dataset:
Snow levels remain at 6000-7000 feet, which will keep any snowfall to the highest peaks and ridgelines.
This UL low will continue to push NE into the Plains by Monday with a long wave trough covering the CONUS. UL ridging over the Pacific will gradually translate east leaving the CWA within dry, NW flow aloft for much of the period.
A cold front will push inland tonight with gradually deteriorating conditions, especially from the coast to the Cascades. Light rain chances will persist overnight, with a freezing level lowering to 7000 ft msl.
A cold front will move through the area on Monday morning, with scattered showers along the front.
1146 PM CST Sun Nov 23 2025 - A warm front will move across on Monday bringing a warm and moist Gulf air mass back into the area.
- A stronger cold front should push through by midweek, bringing noticeably cooler and drier conditions just in time for Thanksgiving. On Monday, an upper-level trough moving through the Plains will draw higher moisture northward and support scattered showers and thunderstorms primarily north of us ahead of an approaching cold front. By midweek, high pressure spreads over the region, ushering in drier and cooler conditions.
- Dry overall this week with mostly seasonal temperatures until a strong cold front threatens this weekend.
- Backdoor Cold Front: Along the Continental Divide this afternoon/evening producing heavy mountain snow, cooling temperatures, and wind shift to northeasterly.
- Turning cooler towards middle of this week with low temperatures near the freezing mark.
146 AM EST Mon Nov 24 2025 High pressure will build across and offshore the Middle Atlantic through tonight.
1109 PM MST Sun Nov 23 2025 - Warmer and Drier Monday.
618 AM EST Mon Nov 24 2025 High pressure building into the region will bring gradual clearing today with slightly milder temperatures. An approaching low pressure system will bring increasing clouds Tuesday with rain developing in the afternoon.
317 AM MST Mon Nov 24 2025 - Strong cold front will bring scattered precipitation as a rain/snow mix with a few rumbles of thunder today.
A pronounced cyclone is working its way off the eastern Rockies into western KS. Just ahead of it is a compressed ridge stabilizes much of the vertical column over eastern KS ans western MO. This saturated layer has been trapped under a warmer, drier upper atmosphere which has resulted in a compressed, thick cloud deck. This has been evolving through the night as the cyclone advances northeastward. Cyclonic vorticity advection aloft as the low pressure center approached encouraging lift and developing showers. Behind this front, once again the column dries with the exception of the lowest layers.
The low pressure is currently lifting out over the Plains so most of the showers have come to an end. Lows will be warmer than expected where the clouds stick around all night. The wave pushes a cold front into the area tonight. Perhaps a few inches are possible in the highest elevations in the Park Range, Elkheads, Flat Tops and Gore Range.
The low end of the snow level range does indicate we could see a mix or some snowflakes at lowest elevations.
Behind the breakdown of the upper ridge will be a rapid and deep increase of moisture on southerly flow. As the windshift occurs, cooler air will be advected in from the west.
202 AM MST Mon Nov 24 2025 - Strong cold front arrives late tonight along with light snow. Further upstream, water vapor imagery shows upper level trough axis pushing through BC and WA with vorticity maximum overspread western MT. This wave will dive into the Northern Plains later tonight with a strong cold front to arrive after 02-04z. Snow accumulations will be light with less than an inch across northwestern SD; 1-3" of snow is possible across the higher elevations of the Wyoming and northern Black Hills through Tuesday morning.
Nevertheless, with ridging prevailing aloft and meager moisture along the atmospheric column ahead of the front, chances for any convection associated with this boundary will remain very low.
Warmer and dry conditions return for Monday and will last through the week. Our low pressure system from the weekend is already exiting eastern Colorado this morning, with low clouds and fog left in its wake over Arizona. Expect the low clouds and fog to burn off by mid-morning, with warmer and sunnier conditions for much of the remainder of the week as a ridge sets in. Will the ridge break down late in the holiday weekend and cause travel issues? There is certainly a possibility of that, but teleconnections are not very clear and the pattern may end up resembling a dry, northwesterly flow that can be indicative of La Nina.
WEATHER PATTERN OVERVIEW: Upper trough moving across the Pacific Northwest this morning will push a low pressure system through eastern Montana today. Warm front will lift north today, followed by the low pressure in the afternoon, and cold front tonight. Main concern is precipitation type with the warm front, as sounding suggest a slow moistening of the atmosphere, delaying precipitation until mid levels cool enough to support ice in the clouds for rain or snow instead of freezing rain. Tuesday afternoon will be cold (highs below freezing for most locations), but the sun should peak out by the afternoon. Ceilings and visibility will lower from west to east as an upper trough punches in through the day on Monday, bringing a mix of rain and snow during the day, turning to all snow overnight.
630 AM EST Mon Nov 24 2025 High pressure will build across and offshore the Middle Atlantic through tonight.
553 AM CST Mon Nov 24 2025 - A warm front will move across the forecast area today bringing a warm and moist Gulf air inland. - A cold front will move through on Tuesday bringing drier and seasonably cool conditions for Thanksgiving.
- Dry overall this week with mostly seasonal temperatures until a strong cold front threatens this weekend. (Tonight through Tuesday) A stacked cyclone was found curling across the Palmer Divide at 10 PM and is set to drift east across Kansas through Monday while minoring out. The low levels remained very moist as gulf moisture on light upslope winds was fueling a round of stratus and fog. Until a Pacific cold front shoves across the Caprock after midnight, fog may grow dense and widespread enough for a Dense Fog Advisory. Barring a sliver of fog and stratus near the Highway 83 corridor by daybreak, clear skies will be the rule on Monday with some steady WNW breezes around 15 mph by late morning.
Warmer and dry conditions return for Monday and will last through the week. Our low pressure system from the weekend is already exiting eastern Colorado this morning, with low clouds and fog left in its wake over Arizona. Expect the low clouds and fog to burn off by mid-morning, with warmer and sunnier conditions for much of the remainder of the week as a ridge sets in. Will the ridge break down late in the holiday weekend and cause travel issues? There is certainly a possibility of that, but teleconnections are not very clear and the pattern may end up resembling a dry, northwesterly flow that can be indicative of La Nina. Areas of MVFR/IFR conditions, especially over the higher terrain through 15Z in low CIGS and FG/BR.
- Gusty northwest winds will usher in a cooler and drier airmass on Tuesday. Meanwhile, the upper low that is has been the catalyst for this wet weather continues to spin over the High Plains, and will begin to slide eastward later today. Broad ascent will overspread the area as the upper low/trough moves over the area, and additional showers are expected to develop as a result.
405 AM MST Mon Nov 24 2025 - Strong cold front arrives late tonight along with light snow. Further upstream, water vapor imagery shows upper level trough axis pushing through BC and WA with vorticity maximum overspread western MT. This wave will dive into the Northern Plains later tonight with a strong cold front to arrive after 02-04z. Snow accumulations will be light with less than an inch across northwestern SD; 1-3" of snow is possible across the higher elevations of the Wyoming and northern Black Hills through Tuesday morning.
Low probability for freezing temperatures in the Mojave Desert for much of the week, high probability for the Sierra Nevada. Indications for a low pressure system over the western US to end the month, though uncertainty remains for exact location and impacts for central California. Latest model ensembles have the ridge of high pressure moving onshore today in tomorrow but also strengthening. This ridge will help keep the atmosphere stable for fog formation every morning this week.
A cold front is currently passing through the area that is now situated along eastern Oregon, close to the OR/ID border. Overnight lows will drop below or at freezing for many portions of the area (60-80 percent chance), with slightly warmer temperatures across portions where the rain/wintry mix will linger longer. Will see an area of high pressure introduce some temporary drying conditions Monday through Tuesday morning. This will increase chances of freezing fogs in some of the valleys going into the early morning hours of Tuesday, although confidence remains medium (30-50 percent chance) with partly cloudy to mostly cloudy conditions keeping confidence high. Unsettled weather will resume Tuesday afternoon when high pressure situated in eastern Idaho/western Wyoming along with a low located in northern California will bring a southern shift in the wind, increasing moisture transportation to fuel our next weather event.
The cold front will move south and east of the area this afternoon with decreasing clouds and breezy west-northwest winds behind the front. Any lingering stratus and fog in the lower Treasure Valley this morning will scour out behind the front. Surface winds: Becoming NW 10-15 kt with gusts up to 22kt this afternoon following a cold front.
240 PM CST Mon Nov 24 2025 - Gusty northwest winds will usher in cooler and drier air Tuesday.
1250 PM EST Mon Nov 24 2025 -Deep layered ridging will ride eastward across our area over the next couple of days, keeping rain chances out of the forecast in the short term.
WEATHER PATTERN OVERVIEW: An upper trough moving across the Pacific Northwest earlier this morning will push a low pressure system through eastern Montana into the Dakotas today. A warm front has lifted north this morning, followed by the low pressure this afternoon, and cold front tonight. Tuesday afternoon will be cold (highs below freezing for most locations), but the sun should peak out by the afternoon. Ceilings and visibility will lower from west to east as an upper trough punches in through the day, bringing a mix of rain and snow during the day, turning to all snow overnight.
A warm front is quickly surging northward drawing low 70s surface dewpoints and a moderate plume of surface-based instability over the Brazos Valley early this afternoon. This system's actual cold front will push through North and Central Texas later tonight.
- Turning cooler mid-week with low temperatures near the freezing mark.
- Strong and dry cold front on Tuesday afternoon will drop temperatures slightly below average through the rest of the week.
- Dry and cool weather returns and stays for few days in the wake of a cold front moving across South Central Texas this afternoon. Also, a mid level trough axis is moving across the Hill Country while an upper level trough axis is moving across the Trans-Pecos area.
Warmer and dry conditions return for Monday and will last through the week. Our low pressure system from the weekend is already exiting eastern Colorado this morning, with low clouds and fog left in its wake over Arizona. Expect the low clouds and fog to burn off by mid-morning, with warmer and sunnier conditions for much of the remainder of the week as a ridge sets in. Will the ridge break down late in the holiday weekend and cause travel issues? There is certainly a possibility of that, but teleconnections are not very clear and the pattern may end up resembling a dry, northwesterly flow that can be indicative of La Nina. Expect locally breezy NE winds downwind of the higher terrain overnight.
1258 PM EST Mon Nov 24 2025 High pressure builds in from the southwest tonight and shifts offshore Tuesday. Low pressure developing over the Great Lakes will send moisture into New England through the day Tuesday with light rain developing Tuesday night.
202 PM MST Mon Nov 24 2025 - Cold front enters the region this evening, bringing light rain/snow chances and colder temperatures. Current Water Vapor and upper air models snow upper closed low centered over Kansas, with more zonal flow over the Dakotas, and a wave over western Montana this afternoon. Surface analysis shows low over northwestern MT, with a frontal boundary stretching into southern ID and OR, while high pressure sits over south central SD. Upper wave and associated cold front moves into the northern plains this evening, entering the CWA around 01-03Z.
229 PM MST Mon Nov 24 2025 - Cold front late tonight into Tuesday morning will bring cooler temperatures to the Plains, with highs in the 40s.
Tonight, temperatures are anticipated to drop below freezing across most of the forecast area, including the lowlands, setting the stage for wintry precipitation where temperatures fail to rise above freezing Tuesday.
The timing of the snowfall will align with the timing of the cold front, as low atmospheric moisture means the additional lift from the front is important. Given the limited moisture, not much is expected in terms of accumulating snow, but at most a few inches are possible in the highest elevations of the Park Range.
As a cold front passes through the area beginning early Tuesday, winds behind the front will switch to the northwest and increase. With the cold front passage colder temperatures are expected as highs will be in the upper 30s to low 40s through the week.
Given recent moisture and time of year, however, odds are more likely for the lower level conditions to dominate and bring the return of LIFR conditions.
530 PM CST Mon Nov 24 2025 - Gusty northwest winds will usher in cooler and drier air Tuesday.
430 PM MST Mon Nov 24 2025 - Cold front enters the region this evening, bringing light rain/snow chances and colder temperatures. Current Water Vapor and upper air models snow upper closed low centered over Kansas, with more zonal flow over the Dakotas, and a wave over western Montana this afternoon. Surface analysis shows low over northwestern MT, with a frontal boundary stretching into southern ID and OR, while high pressure sits over south central SD. Upper wave and associated cold front moves into the northern plains this evening, entering the CWA around 01-03Z.
Warmer and dry conditions return for today and will last through the week.
440 PM MST Mon Nov 24 2025 - Cold front late tonight into Tuesday morning will bring cooler temperatures to the Plains, with highs in the 40s.
304 PM CST Mon Nov 24 2025 Updated at 304 PM CST Mon Nov 24 2025 - Cold front shower activity (30-40% chance) will graze the Victoria Crossroads tonight. - A stronger cold front should push through by midweek, bringing noticeably cooler and drier conditions just in time for Thanksgiving. Confidence in Dense Fog is low at the moment but will need to see how the evening model runs capture the lowest visibilities Tuesday morning.
201 PM MST Mon Nov 24 2025 KEY MESSAGES: - Backdoor Cold Front: Across Glacier Region this evening producing snow, falling temperatures, and difficult travel.
521 PM MST Mon Nov 24 2025 - Cold front enters the region this evening, bringing light rain/snow chances and colder temperatures. Strong cold front entering western Campbell County. Further downstream in western SD, have expanded the high wind warning few zones, adding Rapid City, Spearfish, western Fall River, and Colony, WY given hires model trends. Current Water Vapor and upper air models snow upper closed low centered over Kansas, with more zonal flow over the Dakotas, and a wave over western Montana this afternoon. Surface analysis shows low over northwestern MT, with a frontal boundary stretching into southern ID and OR, while high pressure sits over south central SD. Upper wave and associated cold front moves into the northern plains this evening, entering the CWA around 01-03Z.
- A cold front pushes through Tuesday night into Wednesday, bringing a low to medium (30-60%) chance of showers and thunderstorms across the region. A cold front accelerating across South Texas will approach the region Tuesday, expected to pass overnight Tuesday.
At the absolute best, the highest elevations have about a 25% chance of seeing any snowfall through sunrise. Though some modest moisture still appears to be residing over these areas as seen in satellite imagery, the cold front passing through just hasn't been strong enough to prompt any showers.
- A stronger, reinforcing front pushes through Wednesday morning, bringing cooler and drier conditions just in time for Thanksgiving. Cooler, drier conditions are expected on Tuesday with high temperatures in the mid to upper 70s north of I-10, and then the low to mid 80s southwards. A re-enforcing, dry cold front will pass through the region late Tuesday night into Wednesday morning ushering in much cooler/drier conditions to the region. Low temperatures Tuesday night will ultimately be determined by the exact timing of the cold front, but its looking like most of the region will drop into at least the low to mid 50s - but it could be a few degrees cooler if the front is faster.
- Cold front pushes through Tuesday Night into early Wednesday with our big cool down poised to continue through the end of the holiday week. Radar trends over the last hour or so has shown a decrease in convective intensity but there is still a west to east oriented warm front bisecting northern Louisiana south of the I-20 Corridor. One more warm day forecast today ahead of a strong cold front that will enter our region late into the afternoon but more likely during the evening and overnight hours Tuesday Night bringing with it much cooler temperatures and dewpoints. Near normal temperatures for late November can be expected with this post frontal airmass coming in with freezing temperatures likely Wed Night and Thu Night across our far northern and northeastern zones both nights.
1028 PM MST Mon Nov 24 2025 - Cold front late tonight into Tuesday morning will bring cooler temperatures to the Plains, with highs in the 40s.
- Gusty west to northwest winds will develop behind a cold front late tonight through Wednesday.
A vigorous cold front will cross the region early Wednesday morning with falling temperatures through what will be a blustery day.
237 AM CST Tue Nov 25 2025 - Breezy today behind a cold front that will bring in below-normal temperatures Wednesday through the end of the week.
1040 PM CST Mon Nov 24 2025 - Gusty northwest winds will usher in cooler and drier air Tuesday.
- A cold front will move into the area Tuesday night and will bring near to below average temperatures on Wednesday.
- A cold front will move through the area this afternoon and evening, bringing cooler temperatures tonight and Wednesday.
107 AM EST Tue Nov 25 2025 A warm front will bring above-normal temperatures and low rain chances through Wednesday.
- A cold front will move through on today bringing drier and seasonably cool conditions for Thanksgiving.
This trough will pass well to the north of Colorado late tonight. A cold front associated with the trough will move across the plains early tomorrow morning. This will bring in cooler temperatures tomorrow with highs roughly 5 degrees below normal. With such strong winds aloft, the higher mountains will see gusts up to 65 mph tonight and tomorrow morning.
- A cold front will bring cooler temperatures for Wednesday and Thanksgiving, with highs in the 50s and 60s. Overnight lows will be in the lower to middle 40s.
Surface cold front has surged south and east of the area with colder air spilling into the forecast area. Upper level forcing will slowly push east of the forecast area as the trough pivots into the Upper Midwest by 00Z tonight, with snow diminishing rapidly this afternoon.
- A cold front is forecast to drop through over the Thanksgiving weekend, bringing cooler temperatures and an uptick in rain chances. (Today through Wednesday) Upper level ridging will remain in place across the western Atlantic and Florida peninsula into the middle of the week, helping promote generally dry and warm weather conditions across the area. This will help enhance lower-level moisture, which could result in slightly warmer feels-like temperatures each afternoon; with high temperatures in the mid to upper 80s each day, the apparent temperatures could start approaching the low 90s by Wednesday afternoon.
- Turning cooler mid-week with low temperatures near the freezing mark. A cold front will move through during the day Tuesday, bringing gusty north winds and cooler temperatures.
400 AM EST Tue Nov 25 2025 Low pressure will track into the Great Lakes today into the day Wednesday, causing a strong cold front to move through the area Wednesday afternoon. High pressure will build back in for the end of the week. Showers will exit after daybreak Wed as a secondary dry slot moves in ahead of a strong cold front. A few showers may linger into Wed morning across northeast Maryland and the Alleghenies before ending by early afternoon Wed as cold front sweeps through. Tightening pressure gradient will support strengthening winds, however, very stable conditions in the lowest 2kft may inhibit full mixing.
- Much cooler and drier air will surge into the area Wednesday and continue the remainder of Thanksgiving Week.
Updated at 1204 AM CST Tue Nov 25 2025 - Cold front shower activity (30-40% chance) will graze the Victoria Crossroads the remainder of tonight. - A stronger cold front should push through by midweek, bringing noticeably cooler and drier conditions just in time for Thanksgiving. A cold front stretched along the Coastal Bend this evening continues to trigger showers across portions of the Victoria Crossroads, with the more robust convection remaining northeast of the region. Once the second front sweeps through, noticeably drier and cooler air will filter in.
1013 PM CST Mon Nov 24 2025 - A cold front will bring cooler temperatures for Wednesday and Thanksgiving, with highs in the 50s and 60s. Overnight lows will be in the lower to middle 40s.
-Deep layered ridging will lift eastward into the western Atlantic during the next couple of days, keeping rain chances out of the forecast in the short term. -A pair of developing low pressure systems over the central United States will begin to interact and merge, resulting in a brief surge in breezes Tuesday before slackening midweek.
- Turning cooler mid-week with low temperatures near the freezing mark. This upper-level system will push a decent cold front into Oklahoma and northwest winds will increase to 15 to 20 mph with gusts of 30 to 35 mph possible behind the front.
A new low will develop and asborb this low today and over east central SD into southern Minnesota and move east.
520 AM CST Tue Nov 25 2025 - A cold front will move through the area this afternoon and evening, bringing cooler temperatures tonight and Wednesday.
High pressure builds into the region through the middle of the week, breaking down by the weekend as our next potential storm system arrives. Today we find the forecast area in an atmosphere resembling a post-frontal environment as a period of cold advection has brought a cooler airmass across the northern half of Utah and southwest Wyoming. As compared to yesterday, high temperatures across the northern area will be around 5 degrees cooler, placing us right around climatological normals for this time of year. The longwave trough that brought the cooler airmass will continue shifting eastward through the middle of the week, allowing an upstream ridge to begin building over the Western U.
313 AM PST Tue Nov 25 2025 High pressure aloft with weak offshore flow will bring warming through Wednesday.
- A cold front will move through later today bringing drier and seasonably cool conditions for Thanksgiving.