Aikyam-Lab/Synoptic-Bench huggingface dataset:
However, with the cloud cover overhead throughout the rest of the day today, expect high temperatures today to be a little cooler than what we've seen the past couple of days, with most spots only getting into the mid 60s in the east to mid 70s in the west. With the high pressure ridging's center east of the U.
1156 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.
157 PM EDT Wed Oct 1 2025 Canadian high pressure will maintain dry weather through the upcoming weekend. A cooler airmass will remain in place through Thursday with portions of the area seeing some frost and freeze conditions tonight.
High pressure over Deep South Texas will maintain dry conditions through Thursday. A mid/upper level low developing over the Gulf this weekend will lead to moisture increasing across the region and thus increasing rain and thunderstorm chances.
/NEW/ /This Afternoon through Thursday/ Mid-level ridging to the southwest will build north and east over much of the Southern Plains through tomorrow, with rain-free and above normal temperatures continuing. Lows will drop into the 60s before another day of climbing mainly into the lower 90s areawide.
(Rest of Today and Tonight) Northeast flow aloft of 15-25 knots will continue across the TN Valley this morning, but should subside and veer to ENE overnight as the height gradient collapses between an amplified 500-mb ridge centered across eastern IL/western IN and a weak, positively- sheared trough across the southeastern CONUS. At the surface, an ill-defined trough/streamline confluence axis currently extends from east-central MS north-northeastward into western portions of Middle TN, and will serve as the initiating mechanism for the development of weak convection later this morning and into the afternoon hours as it slowly spreads westward and away from the region. Otherwise, a couple of showers may also travel southwestward off the higher terrain to our northeast later today, potentially impacting the far northeastern corner of the CWFA late this afternoon or early this evening.
1229 PM CDT Wed Oct 1 2025 Updated at 1226 PM CDT Wed Oct 1 2025 - Dry with warmer than normal temperatures through at least this weekend.
725 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.
- An approaching low pressure system will bring accumulating precipitation to the region this weekend. WEATHER PATTERN OVERVIEW: The overall weather pattern will only gradually change as the ridge of high pressure is slowly pushed eastward by an approaching trough of low pressure from the west.
The pressure gradient begins to tighten Thursday between a large high pressure center slowly building down the Eastern Seaboard and an old stalled frontal boundary S of FL near the Greater Antilles. 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.
An upper level trough remains off the Pacific NW coast with isolated showers embedded in the southwest flow aloft.
718 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.
725 PM EDT Wed Oct 1 2025 High pressure will remain in control through the upcoming weekend with dry weather.
655 PM CDT Wed Oct 1 2025 Updated at 635 PM CDT Wed Oct 1 2025 - Dry with warmer than normal temperatures through at least this weekend.
(Rest of tonight and Thursday) A few showers that earlier tried to form over the higher terrain of the Cumberland Plateau and parts of NW Alabama and NW Mississippi have dissipated with the loss of daytime heating and and now less instability. A light easterly flow rounding this high will continue across the Tennessee Valley for the overnight into Thursday. The easterly flow will bring ever so slightly cooler air across the Valley. Even with sunny skies, high temperatures on Thursday should be a tad cooler, from the low/mid 80s.
Land observations are currently reporting temperatures in the lower 80s, but our island communities in the Upper Keys are reporting temperatures in the upper 70s due to an outflow boundary from the aforementioned shower activity. Dew points are in the lower to mid 70s, so not terribly humid, but we wouldn't mind if that came down a few more degrees. From synopsis, gentle northwest breezes will gradually veer to the northeast during the overnight hours, and into early Thursday morning, due to high pressure over the eastern U. However, this high pressure is slowly sliding toward the eastern coastline, and will lead to freshening northeast to east breezes Thursday evening.
/Issued 127 PM CDT Wed Oct 1 2025/ /This Afternoon through Thursday/ Mid-level ridging to the southwest will build north and east over much of the Southern Plains through tomorrow, with rain-free and above normal temperatures continuing. Lows will drop into the 60s before another day of climbing mainly into the lower 90s areawide.
624 PM CDT Wed Oct 1 2025 Updated at 619 PM CDT Wed Oct 1 2025 - Dry with warmer than normal temperatures through at least this weekend.
540 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.
714 PM EDT Wed Oct 1 2025 Canadian high pressure will maintain dry weather through the upcoming weekend. A cooler airmass will remain in place through Thursday with portions of the area seeing some frost and freeze conditions tonight.
313 PM MDT Wed Oct 1 2025 - High pressure is building today, bringing drier conditions and temperatures around 5 degrees above normal.
522 PM MDT Wed Oct 1 2025 - High pressure is building today, bringing drier conditions and temperatures around 5 degrees above normal.
- Expect temperatures returning to the 90s by Friday as a ridge sets in over the region.
1117 PM MDT Wed Oct 1 2025 - High pressure is building today, bringing drier conditions and temperatures around 5 degrees above normal.
The upper ridge amplifies a bit Thursday night into Friday over the upper midwest and as the previous shift stated, the cold front arrival is delayed a bit more.
Pattern Synopsis/Forecast: Amplified mid-upper level ridging remains the rule over the eastern half to two-thirds of the country. At the surface, high pressure centered over Quebec this afternoon gradually sags south over New England on Thursday. Northern MI progged to lie on the western periphery of high pressure through the remainder of the work week. Temps tonight expected to be on the chilly side, especially interior northeast lower where the probability of winds going calm for a period of time is the highest. Thursday afternoon's high temps a handful of degrees warmer than today -- generally ranging from the upper 60s to the mid- 70s area-wide.
Warm and dry conditions will continue through Friday, before cooler weather arrives for the weekend.
(Today through Friday) Water vapor imagery this evening reveals a trough draped along the eastern seaboard and an upper ridge quickly building in behind it. This upper level ridging/increased subsidence will help keep us dry in the short term. While chances are very low, we *could* see a rogue shower or two across our far southern areas as a H7 vort max ridges around the southern periphery of a mid level high pressure. Otherwise, temps on Thursday will warm into the low to mid 80s for most.
(Today and tonight) Highs increase around 1 degree today as upper level high pressure builds in. Lows tonight will fall into the lower 60s.
Seasonably warm temperatures will stick around today and tomorrow, before cooler daytime highs return for the weekend. High pressure remains focused across the Southwest today, resulting in daytime highs 2-10 degrees above normal. Moving into Friday, an area of low pressure will move across the Great Basin Region. Over the weekend, the trough will continue to move eastward and limit gusty winds to areas near the AZ/NM border. Afterwards, we'll find ourselves under another weak trough pattern.
Dry conditions will continue throughout the day as high pressure centered over New England remains the dominant forecast feature. ---------------------------------------------------------------- There is high confidence in a large eastern CONUS ridge maintaining dry conditions, along with a warming trend in temperatures.
Scattered cirrus will stream to the northeast as it rides the ridge. The Bluegrass region, being east of the upper high (within the upper ridge), will see some of these upper clouds dropping southeast. A few areas along the eastern edge of the CWA may only see the low 80s.
Showers may develop across the eastern Cascade slopes (RDM/BDN) before 15z Thursday with local ceilings in rain showers, in the MVFR category - 2500 feet to the lower VFR range as showers and some thunderstorms then continue eastward through the afternoon. 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.
In wake of the high, flow aloft will become ESE across the region. Both the easterly wave and front/upper trough will tap into the increase moisture and daytime heating to help ignite some isolated to widely scattered showers and thunderstorms this afternoon across the region. Despite the rain chances, afternoon highs will still top out in the lower 90s today. The flow around the high will shift our winds to a northeasterly direction, advecting in a drier and less humid airmass.
/NEW/ /Overnight through Friday Night/ Clear skies, light winds, and relatively warm conditions will continue through Friday as mid level ridging remains in place across the Southern Plains. A weak disturbance will dig southward around the eastern periphery of the ridge on Friday and meander across the northwest Gulf and coastal Louisiana into the weekend.
1212 AM CDT Thu Oct 2 2025 (Rest of tonight and Thursday) A few showers that earlier tried to form over the higher terrain of the Cumberland Plateau and parts of NW Alabama and NW Mississippi have dissipated with the loss of daytime heating and and now less instability. A light easterly flow rounding this high will continue across the Tennessee Valley for the overnight into Thursday. The easterly flow will bring ever so slightly cooler air across the Valley. Even with sunny skies, high temperatures on Thursday should be a tad cooler, from the low/mid 80s.
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. An upper level ridge will build back over the area Friday into this weekend with above normal and dry conditions continuing.
At the surface, ssely sfc winds and low level warm advection will boost temps back into the lower 80s for well inland locations. The sfc winds will then shift swly for Fri with continued low level warm advection, as upper ridging returns to the Upper MS River Valley and wrn Great Lakes.
1232 AM CDT Thu Oct 2 2025 Updated at 1230 AM CDT Thu Oct 2 2025 - Dry with warmer than normal temperatures through at least this weekend.
Dew points will be noticeably lower with values falling into the low to mid 50s for the Tri-State region, except the SE FL Big Bend. Temperatures today will remain warm with highs in the low to mid 80s, with pockets of upper 80s to around 90 degrees along the immediate coast this afternoon.
Tonight, a low pressure system will strengthen across the northern Great Basin. Meanwhile, most of east Idaho will remain mostly dry as we await the low to move east. As we move into Friday, the low will be slowly moving east and the band of heavy rainfall will have moved north.
Mid level ridging overhead will suppress convection and even most clouds for that matter. A dry airmass will allow temperatures to climb into the 90s for most locations outside of the higher terrain. the lower dewpoints will make for very nice mornings with lows in the 60s for most, 50s in the mountains.
Highly amplified upper level pattern with an anomalous ridge over the area. Through filtered sunshine, daytime highs will range from around 80 to the lower 80s. The Ohio Valley will continue to be under the influence of a longwave H5 ridge. Tonight's lows will be a few degrees warmer, ranging from the lower 50s northeast to the upper 50s southwest. Expect warm highs in the lower and middle 80s. A very broad upper ridge will also be in place across much of the eastern and southeastern CONUS.
Updated at 1032 PM CDT Wed Oct 1 2025 - Dry with warmer than normal temperatures through at least this weekend.
With Imelda well off into the Atlantic, the ridge of high pressure that has been anchored in place the past few days up in the Great Lakes down to the MS Valley, will be able to slide eastward. The building heights and plentiful amount of sunshine will give way to daytime highs above seasonal norms, ranging from the low 80s (NE AL) to upper 80s (elsewhere).
An upper level trough organizes over the north-central and northeastern Gulf coast into the weekend. A combination of better moisture levels, strong low level dynamics in the strong easterly flow, along with several easterly waves passing south of the Gulf coast, and added upper weakness from the upper trough comes together allowing for daily showers and thunderstorms to form.
232 AM EDT Thu Oct 2 2025 Canadian-sourced high pressure will maintain dry weather through the upcoming weekend. Large area of strong Canadian high pressure centered over southern Quebec today will drift southward to the southern New England coast by early Friday morning while maintaining dry conditions across the lower Great Lakes region and Northeast. Otherwise, after a chilly start to the day with some areas of frost across portions of western and north-central NY, a developing low level southerly return flow on the west side of high pressure and a dry airmass in place will allow temperatures to rebound nicely today with readings climbing some 30 to even 40 degrees before reaching their daytime highs. while aloft upper-level ridging will amplify across the eastern Great Lakes and Northeast in response to digging troughing across the Rockies and northern Plains states.
(Today through Friday) A mid level ridge from the southern Plains to the Ohio Valley and a mid level low over the central and eastern Gulf persist today into Friday. The southern Plains portion of the ridge lifts a little to the north while the low drifts a little to the west. 5 inches currently over the lower Mississippi Valley and Central Gulf Coast to move west to over our area.
Chances for precipitation are in store for Thursday into Friday as a low pressure system tracks into the western U. Cooler air moving in Friday will cause an 80 to 90 percent probability for below freezing temperatures at Tioga Pass. Noticeable cooling will occur elsewhere by Friday, as temperatures lower to several degrees below average due to a trough of low pressure approaching from the northwest. In the meantime, the first wave of showers due to the approaching trough will arrive in Merced and Mariposa Counties, as well as Yosemite later this morning. The trough will move southward and bring at least a slight chance of showers towards Kern County (mainly southern San Joaquin Valley into the mountains) during the overnight hours tomorrow night and early Friday morning.
A trough will move into the West Coast, bringing below normal temperatures and breezy west winds across the mountains and the deserts on Friday.
137 AM EDT Thu Oct 2 2025 High pressure continues to build in eastern Canada and will move southeast across the northeastern United States through the weekend.
Northeasterly flow strengthens will promote cooler than normal temperatures.
This, along with some weak mid-level WAA on the eastern periphery of a building ridge from the southwest, is creating a region of ascent generally along and east of I-135/US-81 early this morning. As the main trough axis exits eastward and the mid/upper ridge becomes more dominate across the region later today, increased subsidence should help to gradually end rain chances either late this morning or early this afternoon. With the ridge building in from the southwest, a period of warmer temperatures is expected going into the weekend.
1132 PM MDT Wed Oct 1 2025 - Dry with warmer than normal conditions through Friday.
A cooler and wetter pattern persists through the week with temperatures near seasonal normals and multiple chances for showers.
Current Water Vapor and upper air models show upper ridge over the Great Lakes region, while upper low sits just off the PAC NW, with southwest flow over the forecast area. Front will continue through the forecast area this evening, with slightly cooler temperatures, however still well above normal for this time of year. Upper ridge builds into the northern and central plains Thursday and Friday, prompting an increase in temperatures.
Ridging should still build over the Plains on Friday while easterly flow develops near the surface from a coastal trough over the Gulf. Afterwards, a coastal trough will set up a long easterly fetch with winds of around 15-20 knots gusting to 25 knots offshore.
- Meteorological Overview: An upper level low is currently off the coastline of the Pacific Northwest. This upper level low won't move much today, but will start to move eastward on Friday. On Friday, as the upper level low starts to move eastward, there will be a better chance for showers and thunderstorms, especially over Southwest MT.
612 AM CDT Thu Oct 2 2025 An upper level trough organizes over the north-central and northeastern Gulf coast into the weekend. A combination of better moisture levels, strong low level dynamics in the strong easterly flow, along with several easterly waves passing south of the Gulf coast, and added upper weakness from the upper trough comes together allowing for daily showers and thunderstorms to form.
318 AM MDT Thu Oct 2 2025 - Mild to warm temperatures will continue through Friday, before a potent weather disturbance aloft and its associated cold front bring cooler and wetter weather for the weekend. With a slight increase in 700 mb temperatures, highs will be slightly warmer.
625 AM CDT Thu Oct 2 2025 Updated at 624 AM CDT Thu Oct 2 2025 - Dry with warmer than normal temperatures through at least this weekend.
Dunn Previous Discussion: /Overnight through Friday Night/ Clear skies, light winds, and relatively warm conditions will continue through Friday as mid level ridging remains in place across the Southern Plains. A weak disturbance will dig southward around the eastern periphery of the ridge on Friday and meander across the northwest Gulf and coastal Louisiana into the weekend.
534 AM MDT Thu Oct 2 2025 - Dry with warmer than normal conditions through Friday.
Conditions will remain cool and showery through as a low pressure system currently centered around 250 miles west of Vancouver Island slowly moves southward and weakens.
655 AM EDT Thu Oct 2 2025 Canadian-sourced high pressure will maintain dry weather through the upcoming weekend. Large area of strong Canadian high pressure centered over southern Quebec today will drift southward to the southern New England coast by early Friday morning while maintaining dry conditions across the lower Great Lakes region and Northeast. Otherwise, after a chilly start to the day with some areas of frost across portions of western and north-central NY, a developing low level southerly return flow on the west side of high pressure and a dry airmass in place will allow temperatures to rebound nicely today with readings climbing some 30 to even 40 degrees before reaching their daytime highs. while aloft upper-level ridging will amplify across the eastern Great Lakes and Northeast in response to digging troughing across the Rockies and northern Plains states.
KEY MESSAGES: - Dry and seasonable conditions today ------------------------------------------------------------- Dry conditions will continue throughout the day as high pressure centered over New England remains the dominant forecast feature.
552 AM MDT Thu Oct 2 2025 - Mild to warm temperatures will continue through Friday, before a potent weather disturbance aloft and its associated cold front bring cooler and wetter weather for the weekend. With a slight increase in 700 mb temperatures, highs will be slightly warmer.
736 AM EDT Thu Oct 2 2025 (Today through Friday) An active pattern begins to set up for South Florida today as breezy ENE winds near the surface continue to sustain moisture advection over the region, and an upper level trough is forecast to slide eastward across the Florida peninsula. The trough will eventually open up as it moves over the Atlantic late tonight, but conditions are forecast to remain unsettled as guidance shows a mid-level low potentially developing over the Bahamas. Highs will top out in the upper 80s and low 90s, while overnight lows will stay in the low to mid 70s across the whole area.
1038 AM EDT Thu Oct 2 2025 Canadian-sourced high pressure will maintain dry weather through the upcoming weekend. Large area of strong Canadian high pressure centered over southern Quebec today will drift southward to the southern New England coast by early Friday morning while maintaining dry conditions across the lower Great Lakes region and Northeast. A developing low level southerly return flow on the west side of the high pressure and a dry airmass will allow temperatures to rebound nicely into the upper 60s to lower 70s this afternoon. while aloft upper-level ridging will amplify across the eastern Great Lakes and Northeast in response to digging troughing across the Rockies and northern Plains states.
For today: warmer with a small moisture push from the south as PWATs increase into the 0. Friday: an upper level trof will push into the west coast with bringing some light breezes to the area and cloud build-ups near the AZ/NM border.