Aikyam-Lab/Synoptic-Bench huggingface dataset:
- A Frost Advisory is in effect for the whole area tonight into Wednesday morning for temperatures mostly in the low to mid 30s.
122 AM EDT Wed Oct 22 2025 After brief high pressure today, cooler and more unsettled weather moves in for the rest of the week.
302 AM EDT Wed Oct 22 2025 Upper level low pressure approaches early this morning with an occluded front passing through the area today.
A weak cold front will push slowly down the Florida peninsula late today and tonight.
Radar data indicates a lowering of the freezing level, and could see a few snowflakes mix with the rain. Drier air arrives tomorrow with high pressure building into the region.
Breezy southerly winds in the Grande Ronde valley and downsloping/southeast winds along the northern Blue Mountain ridges and west slopes will continue late this morning, but will diminish as the incoming cold front weakens the pressure gradient across the Blues. Otherwise, the trough.
Tropical Storm Melissa churning in the central Caribbean Sea in combination with high pressure building across the Southeast U.
(Today) A longwave trough in the mid/upper-levels will remain positioned across eastern North America for the duration of the near term period, maintaining NW flow aloft of 60-65 knots across the TN Valley. At the surface, a high pressure cell will continue to spread east-southeastward across the Red River Valley of OK/TX this morning, before becoming centered across MS/AL later today. After morning lows ranging from the lower 40s (NW) to upper 40s (SE), it will be a very pleasant day, with WNW winds expected to increase a bit later this morning as diurnal mixing begins.
635 AM EDT Wed Oct 22 2025 An upper level low pressure system will bring cool and more unsettled weather for the remainder of the week and into the weekend.
Patches of freezing fog will be possible near daybreak.
628 AM CDT Wed Oct 22 2025 - Lows will be cooler than normal the next couple of days.
619 AM EDT Wed Oct 22 2025 Upper level low pressure will slowly track across the Great Lakes over the next several days. A fast-moving mid-level disturbance moving through the associated long wave trough will continue to bring a few showers and gusty winds to our northern counties early tonight. Heading into the daytime hours, persistent stratocumulus clouds will remain under the trough, affecting all but our counties south of the Ohio River. Long wave trough slowly lifts a little to the northeast heading into the weekend.
- Windy cooler conditions continue today, before wind speeds decrease by this evening. Large cyclone complex acrs the GRT LKS will maintain deep cyclonic flow acrs the mid and upper MS RVR Valley making for another windy day today with gusts 25 to 35+ MPH at times. Both sfc and upper ridging slide in from the west for clearing and sfc wind decouple.
The cold front continues to push through parts of south-central Georgia (currently situated just south of Columbus and Macon), ushering an area of midlevel clouds slowly out of the area. High pressure will build across the Lower MS Valley Region today extending eastward. The highest winds should remain north of this area but the low RH values and fuel moistures will lead to high fire danger conditions across Central Georgia this afternoon.
- The combination of light winds and temperatures in the low to mid 30s will promote widespread frost formation across the local area this morning.
441 AM CDT Wed Oct 22 2025 - The combination of light winds and temperatures in the low to mid 30s will promote widespread frost formation across the local area this morning.
405 AM MDT Wed Oct 22 2025 - High pressure brings warming trend to afternoon highs, near normal lows, and light wind through Thursday night.
A closed upper low centered over the Great Lakes will continue to dominate the weather across central Illinois today. With surface ridging directly overhead, think the atmosphere will fully decouple and winds will become nearly calm. resulting in overnight lows mostly in the lower 30s. As this jet approaches the West Coast, it will shunt a cut-off low currently spinning off the coast of Baja California northeastward into the Midwest by this weekend.
A closed low system will shift into the forecast area throughout the day today, spreading increasing cloud cover through the daylight hours and increasing shower coverage across central and southern Utah through the overnight hours. This low will depart the region on Thursday evening, with temporary high pressure building into the region before a cold trough begins making impacts across the northern area late in the weekend.
The area will sit just upstream of the main trough axis and fairly stacked westerly flow and with some heating this afternoon some breezy winds will mix down.
707 AM EDT Wed Oct 22 2025 Upper level low pressure approaches early this morning with an occluded front passing through the area today.
At the surface a cold front continues to move downstream away from the region.
409 AM PDT Wed Oct 22 2025 * A low pressure system moving across the area today will bring cooler temperatures and a slight chance of precipitation to the southern Sierra and Great Basin.
749 AM EDT Wed Oct 22 2025 - Scattered showers will become more widespread towards morning - Gusty winds will continue with showers through Thursday - Cold start to the weekend, then warmer and drier weather ahead - Scattered showers will become more widespread towards morning Scattered showers continue to streak across southern Lower Michigan early this morning. A short wave trough rounding the upper level low, will bring those widespread showers across southern lower Michigan this morning. The widespread showers associated with the cold front will trek eastward late in the morning.
104 PM MST Wed Oct 22 2025 - Today's high temperatures will be in the lower 90s across the lower desert regions as cloud coverage will begin to lift after the passing of the most recent system. Early morning/afternoon showers have come and gone as current water vapor imagery shows the cut-off low over southern California and a swath of dry air being advected into the Desert SW region. High temperatures today will be in the low 90s across the lower desert areas, similar to yesterday, then Thursday the cut-off low will be passing over Arizona and the Four Corners region dropping temperature back into the lower 80s across the south-central Arizona lower deserts to the mid 80s across southeast California.
1226 PM CDT Wed Oct 22 2025 - The combination of light winds and temperatures in the low to mid 30s will promote widespread frost formation across the local area this morning.
144 PM EDT Wed Oct 22 2025 High pressure will maintain dry conditions through the weekend.
128 PM MDT Wed Oct 22 2025 - High pressure brings warming trend to afternoon highs, near normal lows, and light wind through Thursday night.
Partial sunshine returns this afternoon with pleasant high temperatures in the lower to middle 60s.
1209 PM CDT Wed Oct 22 2025 - Lows will be cooler than normal the next couple of days.
129 PM PDT Wed Oct 22 2025 * A low pressure system moving across the area today will bring cooler temperatures and a slight chance of precipitation to the southern Sierra and Great Basin.
258 PM CDT Wed Oct 22 2025 - Freezing temperatures are expected overnight into Thursday morning at many locations.
However, with ground temperatures above freezing and low temperatures hovering at or just above freezing expect minimal if any accumulations. As skies clear out behind the departing low Thursday night temperatures are expected to fall near or below freezing across most of the region. This may keep lows just above freezing for parts of those areas. A ridge developing over the central CONUS will bring mostly dry conditions to the region through this weekend.
1212 PM CDT Wed Oct 22 2025 - Windy cooler conditions continue today, before wind speeds decrease by this evening. Large cyclone complex acrs the GRT LKS will maintain deep cyclonic flow acrs the mid and upper MS RVR Valley making for another windy day today with gusts 25 to 35+ MPH at times. Both sfc and upper ridging slide in from the west for clearing and sfc wind decouple.
338 PM CDT Wed Oct 22 2025 - Near or below freezing temperatures tonight into Thursday morning.
1234 PM EDT Wed Oct 22 2025 Low pressure over the Great Lakes will provide occasional showers, mainly across the north through Thursday.
202 PM CDT Wed Oct 22 2025 - Lows will be cooler than normal the next couple of days.
and Thursday The latest RAP analysis shows a low pressure system spinning over the central Upper Peninsula early this morning. The low pressure system will track across Lake Huron today and into Quebec tonight, but deep cyclonic flow will remain over the region through Thursday. As a thermal trough moves in tonight, 850mb temperatures will drop to 4C to 5C below.
139 PM PDT Wed Oct 22 2025 Cooler weather today despite a patchy marine layer this morning, with gusty winds on the eastern slopes of the mountains this afternoon and evening.
1259 PM MDT Wed Oct 22 2025 KEY MESSAGES: - High pressure today; warm and dry.
228 PM MDT Wed Oct 22 2025 KEY MESSAGES: - High pressure and mostly sunny skies will prevail this week. WEATHER PATTERN OVERVIEW: Even though a cut-off closed low pressure system has arrived in the desert southwestern states, it is completely separated from strong ridge of warm high pressure building up and over the northern Rocky Mountains.
High pressure will remain overhead today with a low to our south and trough to our north. High temperatures will be slightly above normal under the ridge, with high clouds increasing especially across the south.
1141 AM MDT Wed Oct 22 2025 - High pressure brings warming trend to afternoon highs, near normal lows, and light wind through Thursday night.
1044 AM PDT Wed Oct 22 2025 * A low pressure system moving across the area today will bring cooler temperatures and a slight chance of precipitation to the southern Sierra and Great Basin.
- Cold temperatures with overnight lows below freezing tonight and Thursday night.
This afternoon: High pressure continues to build in behind an exiting cold front, resulting in clear skies across the region. With the air temps in the low to mid 70s, relative humidity levels have dropped to around 25-30%. Tonight: High pressure continues to push into the area tonight, allowing for efficient radiational cooling.
142 PM EDT Wed Oct 22 2025 - Scattered showers will become more widespread towards morning - Gusty winds will continue with showers through Thursday - Cold start to the weekend, then warmer and drier weather ahead - Scattered showers will become more widespread towards morning Scattered showers continue to streak across southern Lower Michigan early this morning. A short wave trough rounding the upper level low, will bring those widespread showers across southern lower Michigan this morning. The widespread showers associated with the cold front will trek eastward late in the morning.
117 PM EDT Wed Oct 22 2025 Low pressure over the Great Lakes will provide occasional showers, mainly across the north through Thursday.
Updated at 124 AM CDT Wed Oct 22 2025 - Colder overnight lows in the low to mid 40s are expected tonight and into the upper 30s to lower 40s Thursday night. Wind gusts are reaching up to 20 kts as we are in a pressure gradient between the low in the Great Lakes and high pressure building in from the west. Combined with the mostly clear skies, we'll have proficient radiational cooling and temps will drop into the low to mid 40s. As this may feel pretty chilly, it's only a few degrees cooler than seasonable norms for this time of year.
136 PM EDT Wed Oct 22 2025 An upper level low pressure system will bring cool and more unsettled weather for the remainder of the week and into the weekend.
309 PM EDT Wed Oct 22 2025 High pressure will build eastward from the Great Plains toward the mid-Atlantic region over the next several days through the weekend. A broad area of low pressure in the middle levels of the atmosphere and to the northwest of the region will gradually slide eastward the rest of the week. The main concerns will be the possibility of freezing temperatures over north-central Virginia and areas to the west and southwest tonight and then again Thursday night as winds diminish at night and radiational cooling takes place. Low temperatures tonight in the lower 30s in the west and west-central zones to the lower 40s elsewhere. High pressure will build from the Great Plains toward the mid- Atlantic region and the aforementioned broad low slowly moves to the east of our region Thursday into Thursday night.
653 PM EDT Wed Oct 22 2025 High pressure will maintain dry conditions through the weekend.
A predominantly quasi-zonal 500-hPa ridge is forecast through Thursday night.
604 PM CDT Wed Oct 22 2025 - Freezing temperatures are expected overnight into Thursday morning at many locations.
916 PM EDT Wed Oct 22 2025 High pressure will maintain dry conditions through the weekend.
Temperatures along the Island Chain are in the lower 80s and dew points are in the lower 70s. From synopsis, Tropical Storm Melissa churning in the central Caribbean Sea in combination with high pressure building across the Southeast U.
820 PM EDT Wed Oct 22 2025 Low pressure over the Great Lakes will provide occasional showers, mainly across the north through Thursday.
728 PM EDT Wed Oct 22 2025 Low pressure over the Great Lakes will provide occasional showers, mainly across the north through Thursday.
451 PM MDT Wed Oct 22 2025 - High pressure brings warming trend to afternoon highs, near normal lows, and light wind through Thursday night.
- Near or below freezing temperatures tonight into Thursday morning.
- Lows will be cooler than normal the next couple of days.
235 PM PDT Wed Oct 22 2025 * A low pressure system moving across the area today will bring cooler temperatures and a slight chance of precipitation to the southern Sierra and Great Basin.
- Today's high temperatures will be in the lower 90s across the lower desert regions as cloud coverage will begin to lift after the passing of the most recent system. Early morning/afternoon showers have come and gone as current water vapor imagery shows the cut-off low over southern California and a swath of dry air being advected into the Desert SW region. High temperatures today will be in the low 90s across the lower desert areas, similar to yesterday, then Thursday the cut-off low will be passing over Arizona and the Four Corners region dropping temperature back into the lower 80s across the south-central Arizona lower deserts to the mid 80s across southeast California.
622 PM CDT Wed Oct 22 2025 Updated at 124 AM CDT Wed Oct 22 2025 - Colder overnight lows in the low to mid 40s are expected tonight and into the upper 30s to lower 40s Thursday night. Wind gusts are reaching up to 20 kts as we are in a pressure gradient between the low in the Great Lakes and high pressure building in from the west. Combined with the mostly clear skies, we'll have proficient radiational cooling and temps will drop into the low to mid 40s. As this may feel pretty chilly, it's only a few degrees cooler than seasonable norms for this time of year.
High pressure remains to our west at this hour, with breezy westerly winds continuing. Temps are forecast to fall into the low 40s in many areas, with some upper 30s expected. Look for temps to generally remain in the low to mid 40s across the eastern Midlands with clear skies everywhere.
A potent upper-level trough is dominating the pattern across the Mid-Atlantic and Northeast, with an associated decaying surface frontal boundary draped somewhere over south- central Florida. Local meteorological expertise suggests numerical weather prediction guidance may be on the low-end of realized wind gusts for this period, owed to the very warm October sea surface temperatures supporting turbulent mixing down of stronger winds aloft.
104 AM MST Thu Oct 23 2025 - Cooler and drying conditions are expected today with readings at or just below normal. The cut-off low continues to make its way across the region with the low center now entering far northwest Arizona. Despite the position of the low across our region, drier air has already swept through nearly all of our area with PWATs lowering to around 0. The presence of low across northern portions of the region for much of today will keep temperatures lower with highs only in the lower 80s across the south-central Arizona lower deserts to mostly in the mid 80s across the western deserts. Starting Friday, upper level ridging will gradually spread over the region from the west.
245 AM EDT Thu Oct 23 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 slowly building into the region, bringing a cooler and showery pattern. Temperatures at the highest summits in the Adirondacks have fallen below freezing and they will likely remain there through this period. As colder air gradually works its way into the region heading into Friday, freezing levels will drop and the snow levels will drop into the Green Mountains and should reach some of the mid slopes.
219 AM EDT Thu Oct 23 2025 An upper level low slowly lifts up to our north Thursday into Friday. High pressure slowly builds in over the weekend. Large scale upper level trough remains across northern New England through Friday. The upper trough remains over the area on Friday with mainly cloudy to partly sunny conditions expected. Vertically stacked low and associated trough stay to the north through the end of the week into the weekend, causing unsettled weather and periods of light rain showers.
324 AM CDT Thu Oct 23 2025 - Freezing temperatures this morning at many locations. Clear skies and calm winds again this morning are allowing temperatures to fall even cooler than yesterday morning with many locations already in the 30 to 34 degree range. Highs right now forecast to stay in the low-to-mid 60s, but could see them get into the upper 60s in a few spots. Today we're watching a mid-level trough move out of California toward the I-70 corridor.
An active weather pattern will continue across the region, with an upper level low bringing the chance of showers and thunderstorms to portions of southern and eastern Utah through this evening.
Precip downwind of Lake Superior will gradually wane late Thursday in the west and then late Friday in the east as upstream surface ridging slowly builds into the Great Lakes. 25 inches where the higher amounts being where orographic lifting is maximized in the Michigamme Highlands and Gogebic Range. Can't rule out periods of snow/graupel in overnight each night in the high terrain, but significant accumulations are not expected. This same northwesterly flow into Friday will result in cooler than normal high temperatures with widespread 40s. With increasing ridging Thursday night in the west, clearing skies will allow for interior west locations to fall into the 20s overnight, but otherwise overnight lows near 40 or in the 30s is mostly expected.
126 AM EDT Thu Oct 23 2025 An upper level low over the Great Lakes will bring cool conditions along with occasional rain showers tonight through Friday. A longwave upper level trough (closed low) continues to be positioned over the Great Lakes and will remain over the region through the end of this week. The combination of colder air building in aloft (850 hPa temperatures below 0C) with the trough remaining overhead will lead to both lake-effect and diurnally driven rain showers at times tonight and through the day Friday. As temperatures fall close to the freezing mark in parts of the Adirondacks both Thursday and Friday night, some wet snowflakes may mix in at the higher peaks (mainly above 2000 feet).
Updated at 1042 PM CDT Wed Oct 22 2025 - Temperatures will remain near-normal through the remainder of the week, with highs in the low to mid 70s.
- Widespread freezing temperatures tonight, mainly south of Highway 30. Additional headlines are possible for Friday night with temperatures dropping into the lower 30s across the entire forecast area. Gust magnitude should diminish more sharply into this evening as a ridge of high pressure begins to build in from the west.
Upstream sfc and upper ridging acrs the mid to upper MO RVR Valley then slated to slide acrs the region today for ongoing fair wx regime with near to slightly below normal highs in the mid 50s to near 60. H85 MB cold ridge rule supports widespread lows in the upper 20s to lower 30s, except in the far southwest where low to mid 30s may be more prevalent.
A ridge of high pressure currently extending from the Dakotas southeastward to the Deep South will slowly shift eastward today. The ridge is progged to build directly overhead tonight, allowing winds to go nearly calm and excellent radiational cooling conditions to develop. Given the very dry boundary layer characterized by surface dewpoints in the upper 20s and lower 30s this afternoon, am expecting overnight lows to dip to near or slightly below freezing across nearly the entire KILX CWA. to Robinson line where a gradual increase of high clouds from the southwest may keep readings a degree or two warmer. Barnes The next weather-maker of interest to central Illinois is an upper low evident on 07z/2am water vapor imagery over the Desert Southwest.
- Upper low tracking to our south Thursday night through Friday night continues to take a more southerly track and most of any rain will be south of Hwy 6.
Clouds are expected to clear out of the advisory area overnight with low temps in the lower/mid 30s. Still some uncertainty whether a freeze warning will be needed, based on how cold the low temps drop. Have generally maintained the previous forecast with lows in the lower 30s (away from Chicago and the lake) with a few pockets of upper 20s in the usual cool spots.
A warming and drying trend Thursday and Friday with highs returning to near normal before cooler and windier weather returns for the weekend. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO Water vapor imagery shows the center of the upper level low moving into southern Nevada, and mountain waves downwind of the peninsular range. With the departure of the aforementioned low and the track of a larger low over the PacNW, the end of the week will feature ridging over SoCal and a quick warm up for Friday. Highs will warm 5-9 degrees above Thursday, with temperatures in the 70s for the coast, 80s for valleys and Inland Empire, mid 90s for the deserts and Coachella Valley, 60s to 70s in the mountains, and 80s in the High Desert.
(Today through Friday) Satellite imagery and surface analysis early this morning show a weakening cold front gradually making its way south over the Lake Okeechobee region. Showers, and perhaps a few storms, could also develop across the local atlantic waters on Friday where the remnants of the cold front will linger.
Latest surface analysis shows high pressure centered over the Missouri River valley into the Northern Plains. Observations show dewpoints are in the lower to middle 30s and temperatures have already dropped into the 30s across northern MO and northeastern KS. Morning lows in the low to mid 30s will lead to areas of frost throughout the area, with the exception of the urban and closer suburban areas of Kansas City.
- Near or below freezing temperatures tonight into Thursday morning. Dew point values under the high early this morning were in the mid 20s to low 30s. That area of high pressure will settle southeast and be over western Iowa tonight. Thursday will remain cool with highs in the 50s to low 60s as the high moves east across Iowa. An upper level low will be near the Four Corners region to the southwest Thursday night and will gradually move east into this weekend.
1222 AM CDT Thu Oct 23 2025 Updated at 1222 AM CDT Thu Oct 23 2025 - Temperatures mainly around normal, though cooler Friday morning with a few spots on the Plateau reaching 30-32 degrees.
1026 PM CDT Wed Oct 22 2025 - Showers and storms will overspread the area late Thursday night into Friday as a compact upper low moves into the Rockies.