Aikyam-Lab/Synoptic-Bench huggingface dataset:
331 AM CDT Wed Oct 1 2025 - Slightly cooler today, then temperatures climbing well above normal for Thursday through the weekend. Issued 331 AM CDT Wed Oct 1 2025 Today through Thursday: Thin high cloud cover will continue today as it rotates around the upper high that will be shifting east of the region. The upper ridge that extends into Ontario will roll over into New England and the Lower Great Lakes through Thu. At the surface, the large and fairly strong high pressure area moving into wrn Quebec will track to New England through Thu.
With sunny skies, temperatures are expected in the lower 90s.
845 PM PDT Tue Sep 30 2025 Warmer Wednesday and Thursday as high pressure builds in to the southeast, but with high temperatures remaining below average.
High pressure centered over N IL this morning is progged to slide southeast into the Ohio Valley later today allowing for partly cloudy to mostly sunny skies to continue today across the entire state. The ridge of high pressure will continue to slide east on Thursday to be centered over the eastern US.
1227 AM CDT Wed Oct 1 2025 Our focus through the forecast is in the lower and middle levels as upper high pressure will remain for the most part. This ridge will bring increasing easterly winds the latter half of the week, especially for our coastal communities.
Will keep low chances for rain over NE AL over the next few hours but otherwise a dry forecast is ahead during the overnight period as high pressure remains the dominating factor. Overnight lows will fall to the low to mid 60s with mostly clear skies and light easterly winds. We should see plenty of sunshine today as high pressure settles over the northeast Atlantic.
232 AM EDT Wed Oct 1 2025 - Slightly cooler temperatures for Wednesday and Thursday, but remaining well above normal. - High temperatures rebound back into the lower to middle 80s for the weekend. Underneath an upper ridge, which has been fairly stationary from being offset by tropical systems in the Atlantic, we'll continue to have dry, rain-devoid airmass dominate our forecast.
(Today and tonight) The upper level trough will carry Hurricane Imelda out east further into the Atlantic. As the storm moves away, a backdoor cold front will move into our region from the northeast. The cold front is forecast to stall over the waters of the NE Gulf late tonight.
After this, the upper-level ridge builds in from northwest Mexico into the central High Plains and daily high temperature increase again.
Cooler but dry air originating from high pressure centered on James Bay continues moving across Lake Huron and later from Lake Erie into Lower Mi during the night. A surface cold front, facilitated by the loss of daytime heating, will push east to west off of Lake Huron this evening. The big change with the front will be the lowering of surface dewpoints into the 40s for the majority of Southeast Michigan. The strong mid-upper blocking ridge of 582-588 dam will remain the primary influence throughout the week and first half of the upcoming weekend.
Conditions will generally be dry on Wednesday with partly to mostly cloudy skies as the upper level trough remains offshore. A cold front along the coast this afternoon will weaken as it comes inland tonight but will still be strong enough to support showers in our northern areas through the night.
A mid/upper level ridge will slowly shift eastward over the Great Lakes and Ohio Valley through tonight.
An upper level trough develops over the north-central and northeastern Gulf coast into the weekend. Most of the forecast area will be rain free as drier northerly air moves south over the Southeast, the exception being along and south of the coast, with better moisture levels, strong low level dynamics in the strong easterly flow with several easterly waves passing south of the Gulf coast, and added upper weakness from the upper trough.
A weak upper-level trough moved across the region this past afternoon, bringing mostly cloudy skies and a few stray showers. But, the trough has pushed east of the region. With calm to light/variable winds expected, we should see decent radiational cooling overnight with lows falling into the low to mid 60s.
High pressure continues to hold a firm grasp across much of the mid south early this morning. Latest deterministic guidance shows ridging will stay in place through Wednesday. By Wednesday night into Thursday, a weak upper disturbance will round the periphery of the upper trough over the east coast coupled with an increase in surface moisture bringing a chance for an isolated shower or thunderstorm on Thursday to parts of Arkansas.
(Tonight through Thursday) High pressure will strengthen over the area with a pressure gradient setting up through the short term.
This is allowing for weak bands of showers to move through mainly across the waters surrounding the island chain and the Lower Keys. As Hurricane Imelda continues to trek northeast across the North Atlantic, high pressure currently descending down from eastern Canada will slowly move into the eastern U. By Thursday the high will gradually build as it begins to slide into the western North Atlantic.
Regardless, the push off of the leeside low will help keep winds on the lighter side for today as the building ridge keeps the rest of the Panhandles dry through Thursday.
- High pressure aloft will keep a dry air mass in place through through Thursday morning.
(Tonight through Thursday) A wild swing over the short term with an upper level ridge crashing into the three headed hydra that is Humberto, Imelda, and our cutoff low. As the two tropical systems shift northward and the upper level ridge moves over, flow strengthens out of the northeast driving drier air quickly across the region.
High temperatures today will take advantage of the clearer skies and lingering warm airmass, reaching the low to mid 80s. On Thursday, residents of north and central Georgia clamoring for fall-like conditions will start to be rewarded (for a few days at least) as dewpoints plummet to the low 50s and temperatures return to normal for this time of year. Highs will be in the mid to upper 70s across much of the area, with upper 60s to low 70s in the higher terrain of north GA.
High temperatures will trend warmer today and Thursday with afternoon readings mostly ranging from the mid 80s to lower 90s across the area, except for highs in the mid 90s to around 100 degrees along the Rio Grande.
* Much cooler temperatures expected after Thursday, with highs in the 50s/60s and lows in the 20s/30s. No updates necessary as forecast for late week system and cooler autumn temperatures is on track (Today through next Wednesday) WEATHER PATTERN OVERVIEW: A few scattered showers return north of I-80 for Wednesday, ahead of our next system.
- With an upper ridge breaking down, there may be a couple chances for precipitation, the first round will exit northeast montana this afternoon. WEATHER PATTERN OVERVIEW: A large upper low off the Pacific Northwest coast will gradually move inland but weaken by late in the week. Temperatures will slowly trend downward this week as a trough from the southwest moves in followed by a trough coming in from the northwest this weekend.
(Today) Upper level ridging that expands from the Great Lakes down to the MS Valley remains anchored in place while Hurricane Imelda continues to slide northeastward off into the Atlantic.
135 AM EDT Wed Oct 1 2025 High pressure will remain in control through the weekend, continuing the dry stretch. The cooler conditions will continue through mid week, before an abrupt warming trend starts going into the weekend.
Southwesterly flow aloft continues as upper ridging over the Midwest moves east.
Another mild night will be in store as lows only drop into the 60s to upper 50s in some of the normally cooler locations.
300 AM EDT Wed Oct 1 2025 High pressure builds in from the north, leading to a prolonged period of dry and unseasonably warm weather. Afternoon high temperatures will reach into the low to mid 80s for most lowland locations, with 70s in the higher terrain. A large area of high pressure will remain firmly in control of the weather across the eastern United States through the period.
At the surface, broad high pressure will fill in from the north in the wake of Imelda's departure, setting up modest east and northeast flow, and allowing moisture to increase slightly. VFR conditions should then hold until mid afternoon, when scattered showers and a few storms develop, with the highest chances over southwest Florida. This will result in east and northeast winds increasing to Small Craft Exercise Caution or Small Craft Advisory levels tonight through the upcoming weekend, with the highest winds generally north of Tampa Bay.
We're in southwest flow ahead of deep upper level trough. As we move into Thursday and especially Thursday night a cold front and associated low pressure system will approach the region from the west-southwest. The rainfall will become heavier Thursday Night as the low pressure system and cold front move into southwest Idaho.
- Cooler temperatures return to end the week, with temperatures dipping below average to start the upcoming week. Current surface analysis places low along the Alberta/Saskatchewan border stretching into central/eastern Montana, while ridge stretches from Ontario into the Midwest. Upper level analysis places ridge over the Midwest into western Ontario, with deep low off the Pacific Northwest coast. On Wednesday, with the exception of some lingering showers over the west, quiet weather is expected with another very warm day on tap as thermal ridge remains over the region.
Along the Reef, winds are starting to slacken as Hurricane Imelda moves even farther away from our CWA and high pressure builds back in. The high pressure over the Eastern Seaboard will slowly slide eastward into the western North Atlantic, and build, freshening northeast to east breezes starting Thursday afternoon.
/Issued 1246 AM CDT Wed Oct 1 2025/ /Overnight through Wednesday Night/ Clear skies and light winds will continue overnight tonight and through the day Wednesday as mid level ridging slowly builds back into the Southern Plains. As such, we'll see a relatively cool morning tomorrow with temperatures in the low/mid 60s warming into the upper 80s and lower 90s by afternoon. Clear skies will continue into Wednesday night with lows in the low/mid 60s.
647 AM EDT Wed Oct 1 2025 - Slightly cooler temperatures for Wednesday and Thursday, but remaining well above normal. - High temperatures rebound back into the lower to middle 80s for the weekend. Underneath an upper ridge, which has been fairly stationary from being offset by tropical systems in the Atlantic, we'll continue to have dry, rain-devoid airmass dominate our forecast.
500 mb set up currently is an upper low off western British Columbia coast and an upper ridge centered near Chicago with ridge to north of Lake Superior. This 850 mb jet will remain in place thru the morning and then turn southwest and weaken this aftn as surface-850 mb trough moves through.
516 AM MDT Wed Oct 1 2025 - High pressure builds in today, bringing drier conditions and temperatures around 5 degrees above normal.
632 AM CDT Wed Oct 1 2025 (Today) Upper level ridging that expands from the Great Lakes down to the MS Valley remains anchored in place while Hurricane Imelda continues to slide northeastward off into the Atlantic.
555 AM EDT Wed Oct 1 2025 (Today and tonight) The upper level trough will carry Hurricane Imelda out east further into the Atlantic. As the storm moves away, a backdoor cold front will move into our region from the northeast. The cold front is forecast to stall over the waters of the NE Gulf late tonight.
- Cooler, showery pattern continues through the week.
Drier air on the west side of Hurricane Imelda and high pressure building in from the north remains over west central and southwest Florida producing pleasant weather with lower rain chances today. This will result in east and northeast winds increasing to Small Craft Exercise Caution or Small Craft Advisory levels tonight through the upcoming weekend, with the highest winds generally north of Tampa Bay.
605 AM EDT Wed Oct 1 2025 High pressure builds in from the north, leading to a prolonged period of dry and unseasonably warm weather. Afternoon high temperatures will reach into the low to mid 80s for most lowland locations, with 70s in the higher terrain. A large area of high pressure will remain firmly in control of the weather across the eastern United States through the period.
At the surface, broad high pressure will fill in from the north in the wake of Imelda's departure, setting up modest east and northeast flow, and allowing moisture to increase slightly. This will result in east and northeast winds increasing to Small Craft Exercise Caution or Small Craft Advisory levels tonight through the upcoming weekend, with the highest winds generally north of Tampa Bay.
625 AM CDT Wed Oct 1 2025 An upper level trough develops over the north-central and northeastern Gulf coast into the weekend. Most of the forecast area will be rain free as drier northerly air moves south over the Southeast, the exception being along and south of the coast, with better moisture levels, strong low level dynamics in the strong easterly flow with several easterly waves passing south of the Gulf coast, and added upper weakness from the upper trough.
636 AM CDT Wed Oct 1 2025 Dry conditions continue across Deep South Texas today into tomorrow as an expanding mid-level high pressure over northern Mexico maintains riding aloft.
458 AM PDT Wed Oct 1 2025 An unsettled weather pattern will continue to push into the area, with a low pressure embedded with a cold front moves further onshore. Regardless of amounts, a cooling trend is expected to persist with most of the highs dropping to the high 60s to low 70s by the end of the week. Some of the higher elevated populated areas is expected to only peak in the mid-60s. The trough and cold front will continue for the next few days until eventually crossing over most of the area by Thursday afternoon/early evening. Weather starts to dry out as the trough continues to push east with ridging start to take place. There's a bit of disagreement between the Euro and GFS in how they want to handle the passing trough.
Satellite image shows a large and strong upper low west of Vancouver Island with a southwest flow aloft. Multiple disturbances will rotate around the upper low resulting in showers moving from southwest to northeast over the area.
615 AM CDT Wed Oct 1 2025 - High pressure aloft will keep a dry air mass in place through through Thursday morning.
The upper level ridge which has been in control of our weather is drifting east into the Ohio Valley this afternoon. Water vapor imagery and upper air analysis is showing a weak short wave trough to our west over the Great Plains. Guidance shows this trough moving east into the ridge and slowly attenuating through Thursday night. However, forecast soundings show very dry air in the low levels. Temperatures through Thursday night remain unchanged with lows in the low to mid 60s and highs in the mid to upper 80s.
Some of our climatologically cooler spots may dip into the middle 40s. The Ohio Valley remains firmly planted underneath a longwave H5 ridge. Thursday night, lows will be a few degrees warmer compared to Wednesday night, with the entire fa expected to dip into the 50s. Amplified H5 ridge remains stretched across the vast majority of the central and eastern CONUS.
156 PM EDT Wed Oct 1 2025 High pressure continues to build in eastern Canada and will move southeast across the northeastern United States through the weekend.
Highs will be no higher than the low 70s for much of the region, with mid to high 60s for the higher populated areas. Low temperatures over the weekend in Central OR through the Wallowa's are forecasted to be near/at freezing. For precip, a the trough will continue to push east with the oncoming ridge taking more influence in the forecast.
A mid-level ridge continues to reside across the Great Lakes, but the broad trough ejecting out of the central Plains is starting to push the ridge further east. While this trough won't give us any rainfall, it will allow a broad cirrus shield to mover the area resulting in partly clear skies for tonight into Thursday morning. As a result temperatures this afternoon have likely hit their peak and should remain in the upper 70s to around 80 (low to mid-70s lakeside) before cooling into the low to mid-50s overnight. Though, a weak lake breeze does look to keep temperatures cooler along the IL shoreline where highs should remain in the mid-70s once again.
100 PM EDT Wed Oct 1 2025 (Today and tonight) The upper level trough will carry Hurricane Imelda out east further into the Atlantic. As the storm moves away, a backdoor cold front will move into our region from the northeast. The cold front is forecast to stall over the waters of the NE Gulf late tonight.
A cooler and wetter pattern persists through the week with temperatures near seasonal normals and multiple chances for showers. Today (Wednesday) and Thursday: An area of low pressure sitting west of Vancouver Island will continue to direct moisture into the region bringing intermittent chances for showers and isolated mountain thunderstorms.
1222 PM MDT Wed Oct 1 2025 - High pressure builds in today, bringing drier conditions and temperatures around 5 degrees above normal.
131 PM EDT Wed Oct 1 2025 High pressure will remain in control through the upcoming weekend with dry weather.
Much cooler temperatures with breezy afternoon westerly winds are anticipated across the region with gusts up to 30 mph over high terrain.
Toward the weekend, upper level ridging will build into the area, bringing a multi-day stretch of dry weather and continued well above normal temperatures.
1022 AM CDT Wed Oct 1 2025 - Slightly cooler today, then temperatures climbing well above normal for Thursday through the weekend. Patterson Issued 331 AM CDT Wed Oct 1 2025 Today through Thursday: Thin high cloud cover will continue today as it rotates around the upper high that will be shifting east of the region. The upper ridge that extends into Ontario will roll over into New England and the Lower Great Lakes through Thu. At the surface, the large and fairly strong high pressure area moving into wrn Quebec will track to New England through Thu.
The early afternoon water vapor imagery indicates a weak upper low along troughing extending near and just N of the Gulf Coast into Srn GA, with this weakness tailing NW into the Lower MS Valley. While any isolated convection should remain just SE of the region this afternoon/early evening, the higher theta-e air mass should maintain some cu as it advects W into portions of Srn AR/ECntrl LA tonight. This should also result in milder temps at most locales than what was observed this morning across this area, with the higher humidity air coupled with strong insolation resulting in another day of widespread 90+ degree temps across the region.
145 PM MDT Wed Oct 1 2025 - Showers and storm possible Thursday in the central Mountains - Temperatures briefly warm up tomorrow - Showers, storms and much colder temperatures heading into the weekend Afternoon satellite imagery shows mid and high level clouds streaking across the region as a potent upper level trough moves closer to the Pac NW coast. Temperatures this afternoon are generally in the 60s but the southwesterly flow will become enhanced tomorrow ahead of the trough which will allow temps, at least in the lower valleys, to climb into the low to maybe mid 70s tomorrow afternoon. They do show precip chances increasing during the AM hours tomorrow across the central mountains however as we begin to feel the influence from the aforementioned trough.
This ridge will bring increasing easterly winds the latter half of the week, especially for our coastal communities.
Instability will increase some with the heating of the day, but a drier air mass will be in place in the lower and middle levels of the atmosphere.
Updated at 1018 AM CDT Wed Oct 1 2025 - Dry with warmer than normal temperatures through at least this weekend.
Along the Reef, winds are starting to slacken as Hurricane Imelda moves even farther away from our CWA and high pressure builds back in. As Hurricane Imelda continues to trek northeast across the North Atlantic, high pressure currently descending down from eastern Canada will slowly move into the eastern U. By Thursday the high will gradually build as it begins to slide into the western North Atlantic.
1213 PM EDT Wed Oct 1 2025 High pressure builds in from the north, leading to a prolonged period of dry and unseasonably warm weather. High pressure continues to bring quiet and dry weather to the area today. Patchy frost may develop overnight in the higher elevations of Pocahontas and Randolph counties with clear skies and dew points in the middle-to-upper 30s. Another dry and warm day is expected Thursday as an upper-level ridge centers itself over the middle Ohio Valley. High pressure will continue with no rain in the near-term forecast.
(This afternoon through Thursday) Look for only minimal isolated shower activity (with a low chance of thunder) this afternoon and evening in the WRN counties with weak troughing. The sky should clear out tonight as the trough nudges WWD. A tad cooler air influx from the NE/E should allow for low temps 4-8 degrees lower tonight across much of C AL and highs a few degrees lower in the E for Thu.
122 PM EDT Wed Oct 1 2025 High pressure builds in from the north, leading to a prolonged period of dry and unseasonably warm weather. High pressure continues to bring quiet and dry weather to the area today. Patchy frost may develop overnight in the higher elevations of Pocahontas and Randolph counties with clear skies and dew points in the middle-to-upper 30s. Another dry and warm day is expected Thursday as an upper-level ridge centers itself over the middle Ohio Valley. High pressure will continue with no rain in the near-term forecast.
/issued 458 AM PDT Wed Oct 1 2025/ An unsettled weather pattern will continue to push into the area, with a low pressure embedded with a cold front moves further onshore. Regardless of amounts, a cooling trend is expected to persist with most of the highs dropping to the high 60s to low 70s by the end of the week. Some of the higher elevated populated areas is expected to only peak in the mid-60s. The trough and cold front will continue for the next few days until eventually crossing over most of the area by Thursday afternoon/early evening. Weather starts to dry out as the trough continues to push east with ridging start to take place. There's a bit of disagreement between the Euro and GFS in how they want to handle the passing trough.
354 PM EDT Wed Oct 1 2025 High pressure continues to build in eastern Canada and will move southeast across the northeastern United States through the weekend.
226 PM CDT Wed Oct 1 2025 - Slightly cooler today, then temperatures climbing well above normal for Thursday through the weekend. Issued 222 PM CDT Wed Oct 1 2025 Tonight through Thursday night: The ridge over the central and eastern CONUS will remain through the rest of the week and into the weekend. While the ridge remains in place some weak vorticity maxima will shift across south central Wisconsin today into Thursday which will keep upper level clouds around.
That said, a combination of IFR and MVFR conditions may develop this cycle as an upper level low remains in place near Vancouver Island. Satellite image shows a large and strong upper low west of Vancouver Island with a southwest flow aloft. Multiple disturbances will rotate around the upper low resulting in showers moving from southwest to northeast over the area.
Drier air on the west side of Hurricane Imelda and high pressure building in from the north remains over west central and southwest Florida and will produce pleasant weather with lower rain chances today. Breezy northeast winds expected starting on Thursday with the interaction between Imelda, strong high pressure along the eastern seaboard and a trough of low pressure over the Bay of Campeche.