Aikyam-Lab/Synoptic-Bench huggingface dataset:
231 AM EDT Fri Oct 24 2025 A cooler and showery pattern will persist into the weekend, though additional precipitation totals will be mostly light. A large upper level low is centered over the region and it will slowly move to the east going into the weekend. Freezing levels will drop late in the day and into Saturday morning, so the snow levels should drop into some of the mid-slopes. During the day Saturday, moisture will be much shallower and it should be mostly out of the snow growth zone, so it will likely be more mist/drizzle, though with temperatures below freezing in the mountains, there should be some continued riming.
Light winds/calm conditions Baudette to Wadena with temps in the low 20s and ground fog is present in isolated areas around Bemidji and may develop at a few other areas in that BDE-BJI-PKD area thru sunrise. Interesting feature of the day today is a compact but well defined upper low that is near Yorkton SK at 08z It will move southeast into NE ND and be near Detroit Lakes by late today.
Come tonight, any existing cloud cover is expected to dissipate later which should allow most sites to sink below freezing overnight. Widespread overnight lows look to reach the mid to upper 20s, except for those in western MN and the core TC-meto holding off into the low 30s. Through the course of Friday, upper-level ridging deepens well into Manitoba. On the eastern periphery of this ridge, a wave will quickly dive southward across Minnesota.
and Saturday A deep eastern North America trough axis is currently positioned across the eastern Great Lakes, maintaining cyclonic flow over northeast Wisconsin this morning. Early morning temperatures range from the middle 20s in Laona to the lower 40s at Oshkosh. With stratocumulus clouds slowly breaking up over the area, temperatures could still fall quickly at the warmer locations over the Fox Valley. Upstream, high pressure is centered over the northern Mississippi Valley under clear skies. Precipitation: High pressure will move across the area today. Highs on Saturday are generally expected to be in the upper 40s to lower 50s across the forecast area, which is cooler than the previous forecast.
Dense fog will occur over the next two nights and morning hours along the Highwayâs 41, 99 and 198. A low pressure trough is expected to move through Northern California tomorrow, leading to cooler temperatures and light precipitation to Mariposa County and Yosemite NP. Building high pressure aloft will allow for dense fog formation this morning in the lower elevations of the San Joaquin Valley, mainly along the Hwy 99, Hwy 198 and 41 regions. This fog may form again tomorrow morning ahead of the incoming trough, as that system isn't expected to come through until later that morning.
1216 AM CDT Fri Oct 24 2025 - Widespread freezing temperatures tonight into Friday morning for much of the area. 825 PM 34 F! (winds went from 4 kts to calm in this short period) With clear skies, light winds, dry dew points in the low 30s, and a long Mid-Fall night ahead, we're going to spend many hours near or below freezing. Another cold night is in store for the area with freezing temperatures expected. On Friday, clouds will slowly increase through the day as the high moves into the eastern Great Lakes.
Today A chilly start this morning as below freezing temperatures have been observed areawide. The EPS solution trends the low over southeast Minnesota and northeast Iowa, further southwest than the GEFS which trends northeast over Wisconsin. While RAP/HRRR model soundings depict saturated mid-levels, they suggest the low levels through much of the region may struggle to saturate, limiting precipitation at the surface.
Lingering northwest lake effect rain showers over the east half gradually taper off today as cyclonic flow aloft diminishes and high pressure builds in at the surface. Some wet snowflakes may mix in with the rain over the high terrain of the north central UP early this morning; snow accumulation is not expected. With high pressure becoming centered over the Great Lakes tonight colder temps will be more widespread across the UP in the 20s for the interior and low to mid 30s at the lakeshores. Meanwhile, a ridge builds upstream over the Plains. This ridge moves to the Great Lakes by the end of the weekend, increasing warm air advection and bringing above normal temps for the remainder of the weekend.
Updated at 1024 PM CDT Thu Oct 23 2025 - High chance of widespread frost east of I-65 tonight with a few spots falling below freezing.
1252 AM CDT Fri Oct 24 2025 - Warmer nights ahead, next chance for frost/freeze not until Oct 29-30 or later.
300 AM MDT Fri Oct 24 2025 - Scattered convective showers today mainly favoring the higher terrain.
The increased moisture, warm temperatures, and cooling temperatures aloft will increase instability over the northern half of our area as the upper trough approaches.
Early this morning, an upper level low was spinning near the Four Corners.
The high pressure was slowly drifting eastward, and as a result southerly winds were starting to develop across western Minnesota. This trend will continue today, and the southerly wind will bring warmer temperatures with highs back in the 60s across western Minnesota, and 50s elsewhere.
The longwave upper level trough over Eastern North America will begin to break down and advance east today.
155 AM EDT Fri Oct 24 2025 High pressure will continue to build and settle into the region today.
1215 AM MDT Fri Oct 24 2025 - High pressure results in dry weather, light winds and seasonable temps today.
234 AM EDT Fri Oct 24 2025 High pressure will maintain dry and cool conditions through the weekend.
Temps near or below freezing have been common for areas outside of the core of the Chicago metro early this morning. Clear skies will allow temps to quickly rebound above freezing after sunrise, though increasing cirrus from the southwest and only slight moderation of the existing airmass will cap high temps today in the mid 50s. Another cold night is in store tonight on the back edge of the departing ridge.
102 AM CDT Fri Oct 24 2025 - The growing season ends tonight with widespread subfreezing temperatures expected.
624 AM EDT Fri Oct 24 2025 High pressure will maintain dry and cool conditions through the weekend.
402 AM MDT Fri Oct 24 2025 - High pressure results in dry weather, light winds and seasonable temps today.
628 AM EDT Fri Oct 24 2025 High pressure will continue to build and settle into the region today.
903 AM CDT Fri Oct 24 2025 - A warming trend continues through this weekend, with above normal temperatures for late October (Forecast highs in the 60s to around 70, with normal values in the lower 50s).
522 AM MDT Fri Oct 24 2025 - Scattered convective showers today mainly favoring the higher terrain.
Deep upper trough axis eventually departs offering one final round of cyclonic forcing today. High pressure will steadily build into the terminal airspace leading to clearer conditions tonight into Saturday. The longwave upper level trough over Eastern North America will begin to break down and advance east today.
518 AM MDT Fri Oct 24 2025 KEY MESSAGES: - High pressure and mostly sunny skies will prevail through Saturday night.
1010 AM EDT Fri Oct 24 2025 High pressure will continue to build and settle into the region today.
Warmer today followed by some cooling for the weekend.
410 AM CDT Fri Oct 24 2025 - A warming trend continues through this weekend, with above normal temperatures for late October (Forecast highs in the 60s to around 70, with normal values in the lower 50s).
610 AM CDT Fri Oct 24 2025 - A warming trend continues through this weekend, with above normal temperatures for late October (Forecast highs in the 60s to around 70, with normal values in the lower 50s).
- Sunny skies and near normal temperatures return to much of the region today and Saturday as high pressure builds.
713 AM EDT Fri Oct 24 2025 A cooler and showery pattern will persist into the weekend, though additional precipitation totals will be mostly light. A large upper level low is centered over the region and it will slowly move to the east going into the weekend. Freezing levels will drop late in the day and into Saturday morning, so the snow levels should drop into some of the mid-slopes. During the day Saturday, moisture will be much shallower and it should be mostly out of the snow growth zone, so it will likely be more mist/drizzle, though with temperatures below freezing in the mountains, there should be some continued riming.
617 AM CDT Fri Oct 24 2025 Updated at 610 AM CDT Fri Oct 24 2025 - High chance of widespread frost east of I-65 tonight with a few spots falling below freezing.
NBM/Conshort sky coverage seems higher than what the current system has, so its possible it may be too cloudy this aftn as upper low moves southeast thru NE ND into MN. Light winds/calm conditions Baudette to Wadena with temps in the low 20s and ground fog is present in isolated areas around Bemidji and may develop at a few other areas in that BDE-BJI-PKD area thru sunrise. Interesting feature of the day today is a compact but well defined upper low that is near Yorkton SK at 08z It will move southeast into NE ND and be near Detroit Lakes by late today.
636 AM EDT Fri Oct 24 2025 - Another cold night is expected tonight with lows everywhere in the low 30s. Blanket of lake effect clouds holding firm generally along/north of US-30 as expected and keeping temps generally at or above 40 there while temps in the SW drop into the low 30s under clear skies. Given current headlines and uncertainty with exactly how widespread freezing temps will be this morning, prefer to let day shift make the final call on if the growing season will officially end or if one more night of freeze headlines are warranted. Lake effect cloud cover will gradually erode today as approach of anticyclone will lead to continued diminishing low level winds. Winds become light and variable tonight as the upstream anticyclone settles across the region.
Elsewhere, expect widespread gusts of 20-35 mph, strongest in the higher terrain. The first cold front will move through the region around midnight tonight, bringing the first round of showers to north-central Idaho. The higher terrain of northwest Montana will also see light precipitation, with snow levels between 6,000 and 7,000 feet. The second, and more vigorous, cold front arrives after 5 PM on Saturday.
Through next Friday: Another cold night is in store tonight on the back edge of the departing ridge. A gradual increase in mid to upper-level cloud cover, especially south, will limit nocturnal cooling to some extent, but overnight lows should still have no problem falling into the 30s (except in the core of Chicago where lows in the lower 40s are expected).
1248 PM CDT Fri Oct 24 2025 - A warming trend continues through this weekend, with above normal temperatures for late October (Forecast highs in the 60s to around 70, with normal values in the lower 50s).
High pressure extends from the Upper Midwest through the Southeast. Expect the high pressure to remain over the area through the overnight hours. This is helping to keep temps a bit cooler than the past couple of days. Key message(s): - Slightly cooler with mostly dry weather.
A closed low was slowly ejecting into the southern high plains through northern New Mexico early this afternoon leaving south- central Arizona under subsident, northerly flow. Through the weekend, the overall CWA flow pattern will transition to a stagnant, quasi-zonal configuration with pronounced Pacific jet energy punching into the northern Rockies while blocking becomes established over the eastern North America. A nearly stationary trough is expected to remain situated across the northern Pacific while semi-flat ridging is forecast to affect our region.
252 PM MDT Fri Oct 24 2025 KEY MESSAGES: 1) High pressure and mostly sunny skies will prevail through Saturday night.
1120 AM MDT Fri Oct 24 2025 - Scattered convective showers today mainly favoring the higher terrain.
226 PM EDT Fri Oct 24 2025 After a weak low pressure trough passes through late today, high pressure will build from the west this weekend.
Issued by National Weather Service Charleston SC 215 PM EDT Fri Oct 24 2025 High pressure will maintain dry and cool conditions through the weekend.
Mostly clear skies and light winds will persist into tonight under the influence of the high. This will allow for somewhat below normal temps again tonight, with temps dropping into the low to mid 30s most places. There is a chance for a few showers with the wave, but the low levels may struggle to saturate enough for much rain to hit the ground.
The back edge of the cold thermal trough hangs over the state today. This will aide in temperatures tonight down into the low to mid 30s.
224 PM MDT Fri Oct 24 2025 - Sunny skies and near normal temperatures return to much of the region tomorrow as high pressure builds.
259 PM EDT Fri Oct 24 2025 - Quiet Weather Next Several Days - Quiet Weather Next Several Days The upper low will be pulling away with lake effect rain showers ending this evening. Continued drying and subsidence should cause the clouds to mix out later this evening, which will allow temperatures to fall below freezing by daybreak in most places.
The late morning surface map shows 1027 mb high pressure over central IL, ridging from the upper MS river valley SSE into western KY/TN. Light to calm winds late this morning, temps had quickly rose into the upper 40s to mid 50s (Lacon where dense freezing fog early this morning was cool spot at 44F). Latest CAMS show high pressure ridge drifting slowly east of IL by sunset while surface 1013 mb low pressure stays near northern Texas Panhandle into this evening. Winds to remain light rest of today with high pressure nearby.
- AN ATMOSPHERIC RIVER BRINGS BENEFICIAL SHOWERS, ISOLATED THUNDERSTORM CHANCES, HIGH ELEVATION MOUNTAIN SNOW SHOWERS GUSTY SOUTHERLY WINDS, AND COOLER TEMPERATURES THIS EVENING THROUGH THE WEEKEND.
- Several cold fronts may bring cooler, below-normal temperatures by midweek.
A tricky forecast in the Short Term through Saturday evening as the main upper low moves out across southern Kansas and Oklahoma tomorrow. The synoptic circulation of the upper level low itself will be waning through tomorrow, therefore much of the lower/mid tropospheric kinematic field will largely be due to the substantial amount of latent heat release from the large area of thunderstorms -- which were well underway this afternoon across Southwest Texas into Northwest Texas.
306 PM EDT Fri Oct 24 2025 Mainly dry and cool weather through the weekend as high pressure builds across Quebec. It will be a cooler day on Sat as 925 mb temps drop to 3-4C.
The transient nature of the forcing and shallowness of the moisture will limit overall rainfall amounts and the showers should cease by midday with the departing upper level trough.
1210 PM MDT Fri Oct 24 2025 - High pressure results in dry weather, light winds and seasonable temps today.
750 PM EDT Fri Oct 24 2025 After a weak low pressure trough passes through late today, high pressure will build from the west this weekend.
709 PM EDT Fri Oct 24 2025 Mainly dry and cool weather through the weekend as high pressure builds across Quebec. It will be a cooler day on Sat as 925 mb temps drop to 3-4C.
High pressure is translating eastward through the Ohio Valley and into the northeastern US, leaving us on the southern end of it. Some upper 30s are possible in our cooler, sheltered locations. Key message(s): - Slightly cooler with mostly dry weather.
1039 PM EDT Fri Oct 24 2025 High pressure will build from the west this weekend.
High pressure will bring mostly clear and mild conditions through Saturday.
Active fall weather is forecast through the weekend as a series of low-pressure systems from the Pacific track onshore. While ensemble NWP guidance has previously displayed significant spread among ensemble systems with regard to the track and magnitude of the low, 12Z runs are beginning to converge on a more northwesterly location for Saturday morning. Regarding winter weather, snow levels are expected to drop in the wake of today's cold front, reaching mountain pass levels Saturday afternoon and evening as cooler air moves overhead. The injection of cooler air aloft will lead to steeper lapse rates and some instability (MUCAPE of 250-500 J/kg) across the aforementioned region.
721 PM EDT Fri Oct 24 2025 - Quiet Weather Next Several Days - Quiet Weather Next Several Days The upper low will be pulling away with lake effect rain showers ending this evening. Continued drying and subsidence should cause the clouds to mix out later this evening, which will allow temperatures to fall below freezing by daybreak in most places.
642 PM MDT Fri Oct 24 2025 - Scattered convective showers this afternoon and early evening mainly favoring the higher terrain.
540 PM MDT Fri Oct 24 2025 - Scattered convective showers this afternoon and early evening mainly favoring the higher terrain.
515 PM MDT Fri Oct 24 2025 - Sunny skies and near normal temperatures return to much of the region tomorrow as high pressure builds.
754 PM EDT Fri Oct 24 2025 High pressure will maintain dry and cool conditions through the weekend.
801 PM EDT Fri Oct 24 2025 High pressure will maintain dry and cool conditions through the weekend.
323 PM MDT Fri Oct 24 2025 - Scattered convective showers this afternoon and early evening mainly favoring the higher terrain.
(This evening through Saturday night) A cold front is currently sitting across the Texas and Oklahoma Panhandles from northeast to southwest early this afternoon. The upper level low pressure system will move across the Panhandles on Saturday. Highly dependent upon where the center of the low moves across the southern High Plains, wrap around rain showers may lead to light to moderate rainfall across the northeast through portions of the day on Saturday. Cloud cover will gradually clear from west to east during the day, but with the low overhead, temperatures will stay on the cool side in the 60s for highs.
Upper level ridging is currently settling in across the region with moisture levels running near climatological normals. The ridge will help to push temperatures a bit higher than yesterday with lower desert highs across south-central Arizona topping out between 84-88 degrees to as high as the lower 90s across southwest Arizona into southeast California. Despite the ridge getting flattened out on Sunday, heights will stay stable and temperatures will essentially remain the same. A large but semi-flat subtropical ridge will stay positioned across our region or at least just to our south as it will remain the main influence for our quiet weather conditions throughout the week.
High pressure building eastward through the weekend will back the low level flow and bring increasing subsidence - which spells a gradual shift in the trajectory and eventual end to the lake effect clouds/showers by Sunday. The combination of a hurricane off the southeast coast, a large high to the north, along with an upper low across the central states, and perhaps another upper level low across the northeast, will make for a very complex forecast. Early week blocking pattern is expected to evolve/transition toward a deep upper level low over the Eastern U. trough and initial Northeast low will interact. For now, expect rain chances to increase by mid to late week with thermal profiles marginally cold enough to potentially support rain/snow or even all snow ptypes over the higher elevations along the Allegheny spine.
Dry airmass is in place with sprawling high pressure over the Central Great Lakes this morning. With an increase in mid to high clouds today and limited mixing, not looking for maximum temperatures to be much warmer compared to yesterday.
- A much cooler airmass will arrive during the middle of the coming week.
The upper low responsible for all of this is currently spinning over eastern New Mexico. The low will move slowly eastward across the Texas Panhandle and into Oklahoma by this evening.
- Low rain chances return to East Texas early week with a cold front that brings temperatures back to near/below normal.
These clouds will keep the morning temperatures slightly warmer than yesterday and the afternoon temperatures roughly 5 degrees cooler than yesterday.
129 AM EDT Sat Oct 25 2025 - Quiet Weather Next Several Days - Quiet Weather Next Several Days The upper low will be pulling away with lake effect rain showers ending this evening. Continued drying and subsidence should cause the clouds to mix out later this evening, which will allow temperatures to fall below freezing by daybreak in most places.
The highest water levels are expected during the high tide cycle Saturday evening/night and a few low lying coastal roads could become impassable. The closed upper level low is slightly more north over southern OK and the TX panhandle. Things should be calming down by late Sunday night with the frontal passage and cooler and drier air filtering in.
RAP analysis has high pressure around 1026 mb extending across the Great Lakes. Looking upstream, a mid level ridge is moving out over the Northern Plains with a trough to the southwest tracking toward Texas; troughing is beginning to dig into the Pacific Northwest.
As the trough shifts closer this evening, winds will further increase for central Wyoming, bringing gusts above 30 for the rest of western and central WY, with frequent gusts reaching 50 from South Pass to Casper. This leads us to the next winter event as the large-scale trough off the PacNW Coast races east across the Northern Rockies. As the trough moves east, the western mountains are in a favorable placement to get a feed of Pacific moisture lifting along the western slopes.
This will be due to a tightening pressure gradient thanks to Melissa in the Carribean, strong high pressure centered over eastern Canada, and a low pressure system over the deep South US. Mild overnight temps expected with lows tonight ranging from the lower 70s around the lake, to upper 70s over the east coast metro.
- Warmer weekend with daytime highs in the mid 50s to 60s on Sunday.
Today starts chilly with temperatures in the low to mid 40s with sheltered spots in the upper 30s. Afternoon high temperatures should barely break the low 70s under mostly sunny skies, though passing cirrus are expected as an upper low over the southern Pains shifts eastward. As the low continues to inch closer, upper flow turns more southwesterly and moisture begins to increase into Sunday morning with PWAT's gradually increasing above 0. Aloft, an area of low pressure will be moving into the region from the west.
A low pressure trough is expected to move through Northern California today into Sunday, leading to cooler temperatures and light precipitation to Mariposa County and Yosemite NP. The upper-level trough passing over our forecast area today into Sunday will be responsible for cooler temperatures, gusty winds along the Mojave Desert slopes, and a slight chance for mainly light precipitation in the Sierra Nevada towards Yosemite National Park.
341 AM EDT Sat Oct 25 2025 Canadian high pressure will extend throughout the eastern US through the weekend. * Frost Advisory in effect this morning for most of the Piedmont and northern Coastal Plain, and also the northern Sandhills of NC * Continued Cool and Dry A split upper flow pattern will begin to take shape today, featuring a norther stream trough extending from the Great Lakes to the Northeast and a southern stream trough/closed low progressing east into the southern Great Plains. Under mostly sunny skies, highs in the lower 60s north to mid 60s south. Lows generally in the lower 40s, with some mid to upper 30s possible in the cooler locations.
114 AM PDT Sat Oct 25 2025 * Gusty southwest winds expected across the region today and Sunday as a trough digs through the southern Great Basin.
1151 PM MDT Fri Oct 24 2025 - Sunny skies and near normal temperatures return to much of the region tomorrow as high pressure builds.