Aikyam-Lab/Synoptic-Bench huggingface dataset:
- The passage of a strong cold front brings the coldest air so far this season for the latter half of the week. Winds will switch to a westerly to northwesterly direction at 10-20 mph this morning behind a cold front passing through the area, along with clearing skies.
421 AM MDT Wed Oct 29 2025 - Cold front brings breezy conditions to the area today through Thursday.
417 AM MDT Wed Oct 29 2025 - Continued sub-freezing low temperatures for most locations tonight. - Warming afternoon highs, exceeding 60 degrees in the lower elevations by the weekend.
Behind this front, a thermal trough will develop and bring drier air to the region which will gradually erode lingering cloud cover by this afternoon. Additionally, this will bring some gusty north winds to the coast and over the coastal waters as well as over the higher terrain along and west of the Cascades. 25 inches of rainfall, including Seven Mile Creek and Burnt Ridge in Coos County. The frost will help to bring daytime highs in Coos and Douglas counties down to seasonable levels, while other areas will remain a little warmer than average. Gusty northerly winds will be present in Coos, Curry, and Douglas county this afternoon under a thermal trough pattern but those winds will ease quickly into the evening.
- A very weak cold front sweeps through tonight, bringing slightly cooler, more seasonable temperatures for Thursday.
High pressure will dominate the area through most of the period with dry stable conditions. A flattened ridge is situated over the Great Basin with valley haze beginning to increase across the urban corridor of northern Utah.
High pressure over the region will result in continued northeasterly winds gusting to around 20 knots this afternoon. Attention turns to the low pressure system over Kentucky that will curl up to the northeast tonight. 29 inches per 00z DTX raob) will maintain one more dry day, despite the upper level low backing in from New York and moving over the Central Great Lakes by day's end. With some moistening and cooling of the low levels, along with some low cloud development, should end up slightly cooler today compared to yesterday.
Robust mid-level troughing aloft will continue apace, shifting eastward and ejecting across the Eastern Seaboard.
100 PM CDT Wed Oct 29 2025 - Widespread frost and freezing temperatures Thursday morning. Despite the full sunshine, 850 mb temperatures remain chilly (<5C), and afternoon temperatures will be well below normal, in the lower to mid 50s.
1127 AM MDT Wed Oct 29 2025 - Continued sub-freezing low temperatures for most locations tonight. - Warming afternoon highs, exceeding 60 degrees in the lower elevations by the weekend.
1205 PM CDT Wed Oct 29 2025 Updated at 1204 PM CDT Wed Oct 29 2025 - Sub-freezing temperatures expected this morning and Thursday morning across portions of the Permian Basin and in the higher elevations.
(Rest of today through Thursday) Satellite and radar loops showed the swirl of low pressure over West TN moving into the Mid State late Wednesday morning. Shower coverage will increase area-wide again tonight as a cold front arrives and low level moisture wraps around the west side of the low pressure system. The low pressure system will pull away from the area and dry, cool high pressure will begin to take its place.
That being said, the Freeze Watch has been upgraded to a Freeze Warning to account for the near/below freezing temperatures. Further to the east, a Frost Advisory has been issued, as surface temperatures will remain just above freezing with high RH values.
A weak mid level ridge will struggle to build through the day, turning winds northwesterly in the afternoon as gusts slowly diminish.
(This evening through Thursday) Temperatures this afternoon will remain around 10 to 15 degrees below normal, with highs generally in the low to mid 60s. This high will allow for light winds, clear skies, and good radiational cooling conditions. We've aired on the lower side of the model guidance and dropped temperatures for tomorrow morning to try and account for the radiational cooling. We're not expecting every location in our CWA to drop below freezing, but it is widespread enough to include the whole area.
Even portions of the higher slopes will remain in the 40s.
Delta T's are still high enough in the teens to keep any chances for precip off the lake at bay as weak high pressure starts to build in from the west. Patterson Issued 359 AM CDT Wed Oct 29 2025 Today through Thursday: Low pressure will remain well to the south and southeast of the region during this period, with weak high pressure moving through the area later tonight into Thursday. Cyclonic flow at 500 mb should linger through tonight over the area, until the 500 mb low shifts well to the east, with a weak 500 mb ridge axis shifting across the area on Thursday. The low level moisture is in question, so not sure if any lake effect showers may occur.
201 PM EDT Wed Oct 29 2025 As a low pressure center lifts north through the forecast area, expect light rain to begin to develop during this afternoon and continue overnight where the heavier rainfall is expected.
Highs today in the mid to upper 50s remain on target, as 1 PM temperatures have reached the lower 50s north to mid 50s central and south. Thursday, light surface winds will make it feel a bit more pleasant, but with increasing mid clouds resulting in mostly cloudy skies by mid morning will hold highs to cool levels in the lower to mid 50s.
- Warmer temperatures return late this week and for the weekend. A pleasant day across most of the forecast area with sunny skies and warmer temperatures this afternoon. Northwest winds will persist behind the cold front on Thursday, keeping high temperatures a few degrees cooler than today. With an upper-level ridge over the west coast, skies will remain clear with minimal chances for precipitation.
Drier weather will start to take hold as the low pressure progresses further east today. High pressure will develop over the Plains this weekend, reinforcing the drier and cooler pattern.
315 PM EDT Wed Oct 29 2025 - Lake Effect Showers Thursday Night into the Weekend - Lake Effect Showers Thursday Night into the Weekend An upper level low will track across the Ohio River Valley Thursday bringing a slight chance (20 percent) for showers in eastern Jackson and Ingham counties. Otherwise dry conditions hold until low to mid level winds shift to the northwest ahead of another upper level low tracking from Canada.
Some snow will likely mix in over the highest mountain peaks late tonight into Thursday.
A band of precipitation is moving across northern and central ID this morning with a weak cold front.
155 PM EDT Wed Oct 29 2025 A low pressure system will allow for rain across the region through Thursday evening before starting to taper off.
Early afternoon objective analysis indicates quasi-stationary high amplitude ridging covering much of the western Conus as a downstream blocking regime strengthens.
1249 PM MDT Wed Oct 29 2025 KEY MESSAGES: - Quiet and dry weather as ridge builds through Halloween. This morning's cold front has quickly passed through the region and continues to bring breezy westerly winds in its wake (and very windy conditions near and east of the divide).
1246 PM CDT Wed Oct 29 2025 - A deep low pressure system will continue to produce light showers in the north through this afternoon. Although the cold front has pushed well east of the area, the nearly stacked low pressure system over north Mississippi will move slowly to the east southeast today. /22/ We will be in a post frontal regime today on the backside of an upper low.
Thursday expected to be a two to three degrees cooler than today across northern Nevada. Upper ridging associated with a high pressure system move back over the southwestern U.
- Widespread freezing temperatures are expected late tonight.
Increasing surface pressure will continue to promote generally dry conditions tonight into tomorrow as low pressure moves southeast of the state. Heading into Thursday night, a weak trough is expected to sink southeast out of Minnesota.
113 PM CDT Wed Oct 29 2025 - A deep low pressure system will continue to produce light showers in the northeast early this evening.
Water vapor imagery currently shows an upper low tracking across the Tennessee Valley with some additional upper energy sliding across the Northern Intermountain. At the surface, low pressure is situated under the upper low and is also moving across the Tennessee Valley. This will allow temps to quickly fall with many locations along and west of I-135 dropping to around or below freezing. Not confident on how much damage to agriculture there will be since most locations will only drop to below freezing for an hour or two. Normal highs for this time of year are in the low 60s. Upper ridging will start to work-in from the west on Sun and will bring a warm-up for the start of the work week.
As a deep upper trough swings into the eastern US, the associated cold front will work across the Southeast and into the forecast area tonight.
The stacked, cut-off cyclone that brought today's rain is slowly drifting off to the southeast of the mid Mississippi Valley. Gusty northeasterly winds on the northern flank of this low have been advecting notably drier air into the region through the day, which has in turn eroded the precipitation shield from the northwest to southeast. In the wake of the above cyclone, we'll remain in northwesterly upper level flow.
Skies are clear across much of the forecast area, save for the usual cumulus over the mountains as weak ridging builds in to replace this morning's frontal system.
1224 PM CDT Wed Oct 29 2025 -A Wind Advisory is in effect for the entire state of Arkansas through this evening for sustained winds of 25 mph and wind gusts which will exceed 35 mph, possibly 40 mph in the higher terrain across Arkansas. -Below average temperatures are anticipated through the most of the forecast period due to the combination of wet weather, cloud cover, and the passage of a cold front.
Temperatures quickly fell in tho the lower 40s and should bottom out in the mid to upper 30s, warmest east. Increasing surface pressure will continue to promote generally dry conditions tonight into tomorrow as low pressure moves southeast of the state. Heading into Thursday night, a weak trough is expected to sink southeast out of Minnesota.
Returns on regional radar composites have been increasing in western ND/eastern MT associated with the mid level trough that will eventually push east towards our region late tonight/Thursday morning. Temperatures in the lowest levels will support liquid and even where lows drop to freezing there would be a quick recover above freezing due to increasing southerly flow/winds and mid level clouds (p-type should remain rain though a stray flurry can't be ruled out in MN).
- A deep low pressure system will continue to produce light showers in the northeast early this evening.
516 PM CDT Wed Oct 29 2025 - Widespread frost and freezing temperatures Thursday morning. Despite the full sunshine, 850 mb temperatures remain chilly (<5C), and afternoon temperatures will be well below normal, in the lower to mid 50s.
646 PM CDT Wed Oct 29 2025 -A Wind Advisory is in effect for the entire state of Arkansas through this evening for sustained winds of 25 mph and wind gusts which will exceed 35 mph, possibly 40 mph in the higher terrain across Arkansas. -Below average temperatures are anticipated through the most of the forecast period due to the combination of wet weather, cloud cover, and the passage of a cold front.
Elevated easterly winds last night are tapering off through the afternoon as high pressure becomes more centered over the state.
816 PM MDT Wed Oct 29 2025 - A very weak cold front sweeps through tonight, bringing slightly cooler, more seasonable temperatures for Thursday.
Temperatures will be below freezing for most locations by the early morning hours, with highs a few degrees below normal in the mid to upper 50s.
653 PM CDT Wed Oct 29 2025 - A deep low pressure system will continue to produce light showers in the northeast early this evening.
An upper level trough is currently swinging through the Tennessee Valley and will continue on towards New England by the end of the short term. This system is bringing light rain across the southern half of the forecast area this afternoon and evening, shifting to the southeast half overnight as the low tracks northeastward, and then is expected to exit to the east by tomorrow afternoon. Should clouds clear out faster, expect slightly warmer temperatures for tomorrow. A low pressure system will continue to exit the region at the start of the period with drier air filtering in.
Light to moderate rains continue to swirl around Middle TN this evening as a cold core upper level low is directly overhead. While there's already a chill in the air, as this upper low pulls off to the east, winds are going to pick up again. (Rest of today through Thursday) Satellite and radar loops showed the swirl of low pressure over West TN moving into the Mid State late Wednesday morning. Shower coverage will increase area-wide again tonight as a cold front arrives and low level moisture wraps around the west side of the low pressure system. The low pressure system will pull away from the area and dry, cool high pressure will begin to take its place.
721 PM EDT Wed Oct 29 2025 - Lake Effect Showers Thursday Night into the Weekend - Lake Effect Showers Thursday Night into the Weekend An upper level low will track across the Ohio River Valley Thursday bringing a slight chance (20 percent) for showers in eastern Jackson and Ingham counties. Otherwise dry conditions hold until low to mid level winds shift to the northwest ahead of another upper level low tracking from Canada.
UPDATE Returns on regional radar composites have been increasing in western ND/eastern MT associated with the mid level trough that will eventually push east towards our region late tonight/Thursday morning. Temperatures in the lowest levels will support liquid and even where lows drop to freezing there would be a quick recover above freezing due to increasing southerly flow/winds and mid level clouds (p-type should remain rain though a stray flurry can't be ruled out in MN).
High pressure is building in over the region as the upper-level ridge over the western U. Some across central and south-central Kansas have dipped below freezing for the first time this season! A Freeze Warning and a Frost Advisory remain in effect this morning for portions of the forecast area. A few locations could once again see frost, though widespread freezing conditions are not expected.
THIS AFTERNOON/TONIGHT: Stratus continues to linger across southern Minnesota and northwest Iowa on the eastern side of an area of high pressure drifting slowly eastward. Some of this fog will develop under the high, while some may be an expansion of stratus that doesn't dissipate this afternoon. THURSDAY: An upper trough currently moving through Montana this afternoon will push southeast into the Missouri River valley on Thursday. FRIDAY: Short and medium range guidance continues to again push another upper trough through the Plains early on Friday. Northerly winds continue into trick-or-treat time in the evening and with temperatures falling into the 30s through the evening, sub-freezing wind chills will be likely by mid-late evening.
Observational analysis shows low pressure over eastern Kentucky/Tennessee moving slowly northeastward. This rain is associated with the back-edge of the departing low pressure system. Further east where rain and clouds linger the longest, highs in the low 50s will be more common. Regardless, all areas will see breezy conditions today as the MSLP gradient around the low promotes frequent gusts between 20-30mph.
A ridge of high pressure remains well-situated over the western United States this morning and will continue to dominate the synoptic pattern through the week, albeit with slight permutations leading to minimal fluctuations in surface conditions. With warmer temperatures, relative humidity will be lowered, especially in the southern Sierra Nevada and Tehachapi Mountains, where minRH values are expected 15 to 20 percent, and in the Mojave Desert with values 10 to 15 percent. THe aforementioned ridge over the region will provide increased subsidence aloft, continuing the potential for fog development across the central San Joaquin Valley during the morning hours, especially in areas where surface conditions are fully saturated.
1225 AM CDT Thu Oct 30 2025 - Widespread freezing temperatures are expected tonight into Thursday morning.
206 AM EDT Thu Oct 30 2025 Updated at 201 AM EDT Thu Oct 30 2025 - Additional light rain is expected today with coverage shifting towards the higher elevations tonight with breezy conditions. Light snow is possible in the highest elevations.
- Breezy tomorrow with cooler than normal temperatures over the next few days.
- Widespread freezing temperatures are expected tonight into Thursday morning.
(Today and Tonight) A cooler airmass with breezy northwest winds will prevail today behind a cold front. Some upper 30s are possible in the normally cooler locations.
Some spots across the Concho Valley and northern Edwards Plateau have already dropped to the freezing mark.
Updated at 131 AM CDT Thu Oct 30 2025 - Sub-freezing temperatures this morning across portions of the Permian Basin and in the higher elevations.
1210 AM PDT Thu Oct 30 2025 Updated at 1210 AM PDT Thu Oct 30 2025 * Dry and fair weather thru this weekend under high pressure The current forecast is on track.
A large upper level low is currently centered near the Tennessee/Kentucky border this morning.
1050 PM MDT Wed Oct 29 2025 - A very weak cold front sweeps through tonight, bringing slightly cooler, more seasonable temperatures for Thursday. - Cooler than normal conditions will stay in place Friday, especially east of the Divide.
Updated at 137 AM CDT Thu Oct 30 2025 - Freezing temperatures and frost are expected this morning across much of central and western Oklahoma and into western north Texas with temperatures as low as 27 degrees.
221 AM MDT Thu Oct 30 2025 - Highs about 5 degrees cooler today behind the cold front.
Early this morning weak upper level ridging extended from the southwestern U. A weak upper level low was drifting north through eastern Ontario with a stronger upper level low over TN/KY tracking to the northeast. Tonight through Friday low pressure currently over the southern Appalachians will track northeast into the New England.
UPDATE Returns on regional radar composites have been increasing in western ND/eastern MT associated with the mid level trough that will eventually push east towards our region late tonight/Thursday morning. Temperatures in the lowest levels will support liquid and even where lows drop to freezing there would be a quick recover above freezing due to increasing southerly flow/winds and mid level clouds (p-type should remain rain though a stray flurry can't be ruled out in MN). For Thursday, cloud cover continues to increase as an upper low approaches the area Thursday night into Friday morning. A low pressure system moves across the region late tonight into Thursday morning bringing a period of light rain showers/sprinkles during the morning hours. An associated cold front arrives midday and is responsible for shifting and increasing winds to the west-northwest Thursday afternoon.
- A deep low pressure system will continue to produce light, intermittent sprinkles and showers.
Even portions of the higher slopes will remain in the 40s. Models do indicate another, stronger, wave digging across the Central Rockies on Friday, leading to the potential for a few afternoon and evening showers, mainly over and near the higher terrain. Currently, NBM data keeps silent pops across the higher terrain, however, will need to keep an eye on the location of this wave and how much mid level easterly flow, if any, that may develop, which could lead to increasing pops on Friday. Temperatures again to be at to slightly below seasonal levels, with highs mainly in the 50s across the plains on Friday, and mainly in the 40s and 50s across the higher terrain, with lows in the 20s and 30s areawide both Thursday night and Friday night.
Below normal temperatures will continue Thursday into Thursday night with high pressure in place. Highs on Thursday will range from the mid 70s to around 80 degrees, except for the lower 70s at the beaches. Another cool night is expected Thursday night with lows in the low to mid 40s across the northern Ranchlands to the lower 50s in the populated portions of the Rio Grande Valley.
1200 AM CDT Thu Oct 30 2025 -A Wind Advisory is in effect for the entire state of Arkansas through this evening for sustained winds of 25 mph and wind gusts which will exceed 35 mph, possibly 40 mph in the higher terrain across Arkansas. -Below average temperatures are anticipated through the most of the forecast period due to the combination of wet weather, cloud cover, and the passage of a cold front.
244 AM EDT Thu Oct 30 2025 - Cooler with a few showers at times Friday into the weekend. Even with more filtered sunshine, it looks to be another mild afternoon for late October, with highs generally in the lower 50s and light north- northeast winds. How much sky cover will have a big say in overnight lows, more clouds keeps readings near the low to mid 30s, while areas that manage a few breaks in cloud cover could dip a bit cooler. Guidance continues to show less aggressive deepening of the upper- level trough as we head into the weekend, favoring more of a progressive pattern overall.
-A strong cold front will push through the Florida Keys early this morning. -The front will usher in relatively cooler, drier, and breezy conditions beginning late tonight, lasting through the end of the work week. As this front surges through, not only will we see an increase in winds, but also cooler and drier air. Dew points that are currently in the lower 70s will fall into the 60s later this morning. By Friday, high pressure will quickly build in and sweep eastward along the Gulf coast, resulting in a quick shift of winds out of the northeast. As it slides into the Atlantic over the weekend, we could see a quick but minor surge in winds as the high briefly builds.
138 AM EDT Thu Oct 30 2025 - Lake Effect Showers Thursday Night into the Weekend - Lake Effect Showers Thursday Night into the Weekend An upper level low will track across the Ohio River Valley Thursday bringing a slight chance (20 percent) for showers in eastern Jackson and Ingham counties. Otherwise dry conditions hold until low to mid level winds shift to the northwest ahead of another upper level low tracking from Canada.
After our coldest morning of the season for the lowlands east of the mountains, temperatures have actually warmed quite nicely, even breaking the 60F mark locally across the Palmer Divide where the morning inversion cleared earliest. Moisture with this feature will be inconsequential, with the main impact being sustain cooler-than-average highs (50's for the lower elevations) and some breezy north winds in the plains, subsiding some through the afternoon. Winds across our mountain zones will also pick up Friday, as a north- south oriented jet zips past along the western periphery of an amplifying trough, producing gusts 35-55 mph over the mountain peaks.
- Cool temperatures this morning with some areas in the Hill Country approaching the freezing mark.
With temperatures near freezing, a few slick spots may form on bridges and overpasses.
1208 AM CDT Thu Oct 30 2025 - Widespread frost and freezing temperatures Thursday morning. Despite the full sunshine, 850 mb temperatures remain chilly (<5C), and afternoon temperatures will be well below normal, in the lower to mid 50s.
- Patchy fog and freezing fog is also possible early this morning through sunrise but dense fog appears to be less than a 30% chance.