Aikyam-Lab/Synoptic-Bench huggingface dataset:
The higher elevations of the East Tennessee mountains will see gusts up to 30 or 35 mph late this afternoon through tomorrow morning. A weak cold front will bring increasing chances of rain late tonight through Wednesday morning. The higher elevations of the East Tennessee mountains will see gusts up to 30 or 35 mph late this afternoon through tomorrow morning when the front moves through. In the upper levels, a trough is over the Eastern U. and a ridge is over the Rockies. At the surface, a weak cold front will move through the region tomorrow morning. With afternoon sunshine, highs will get into the lower 70s for most of the Tennessee Valley tomorrow. Discussion: Generally quiet weather can be expected for several days as we sit under upper level and surface level ridging into the weekend.
These veering winds combined with the increasing upper level cloudiness will help to keep temperatures tonight some 5-10 degrees warmer than last night, with most locations falling into the 30s. By Wednesday strong low level warm air advection and downsloping winds will help to push high temperatures into the 70s across most lower elevations, with even a few locations approaching the low 80s over the plains of Central and North Central Montana.
Sprawling high pressure located along the Eastern Seaboard is maintaining breezy northeast winds across the island chain. Temperatures have risen into the lower 80s with dew points ranging from 65 to near 70 degrees. This has produced ripples in the low level cloud field as rising air hits the staunch inversion and undulates downstream. A mid level disturbance currently across the central Gulf of Mexico will slide southeast tonight but should stay just west of the Lower Keys to really affect us. Otherwise, low level ridge will settle across the western North Atlantic and remain a nearly permanent feature through the next 7 days. At the same time, upper level ridging will begin nosing in from the west, eventually phasing with the low level ridge towards the end of the week.
142 PM EDT Tue Apr 23 2024 High pressure moves off the coast tonight.
(Through tonight ) Cold front is presently moving into northeast OK, and is expected to continue pushing south tonight in response to northern stream wave moving across the Great Lakes area.
Dry with seasonable warm temperatures will continue through the first half of the week, then turning cooler and breezy during the latter half of the week. A ridge of high pressure through the desert southwest today, with temperatures climbing to around 6 to 8 degrees above seasonal normals again this afternoon.
(Tonight through Wednesday night) An upper level ridge is gradually building into the region early this afternoon/evening, bringing in northwesterly winds aloft. These upper level winds will turn southwesterly once the ridge fully moves in early tomorrow afternoon. At the surface, a center of high pressure sits over the Southeast CONUS allowing for the continuation of southeasterly flow, therefore, increasing low level moisture over South Texas. By Wednesday afternoon, mostly sunny/partly cloudy conditions return with highs expected in the low 80s in the east to mid 90s out west across the Brush Country.
335 PM EDT Tue Apr 23 2024 - Scattered Showers and Storms This Evening - Widespread Freezing Temperatures Wednesday Night - Showers and Thunderstorms Over the Weekend, Warmer - Scattered Showers and Storms This Evening Scattered diurnal showers and storms expected this evening underneath the cold pool and trough aloft should quickly fade toward midnight.
356 PM EDT Tue Apr 23 2024 Low pressure moves into the region on Wednesday bringing rain showers and perhaps a few flakes to the mountains.
(This evening through Wednesday) The cold front has pushed into the FA, with the front stretching from Friona to Tulia to Estelline as of 18Z. The cold front will slow and stall along to possibly just south of the FA tonight as the upper ridge settles overhead and will keep winds out of the east. Temps will be cooler tomorrow, however, as low stratus develops tomorrow morning. The coverage and extent of the status is still uncertain as some areas, mostly our southern zones, will still see sunshine and warmer temps as a result.
Upper level trough arriving Wednesday with cooler and wetter weather into the weekend. High pressure will maintain mild and dry conditions across the region through Tuesday.
(Tonight through Wednesday night) An upper level ridge is moving into TX from the west with west- northwesterly winds aloft. Southeasterly flow has developed in the low levels bringing warmer, moister air back to the region. Temperatures are only around five degrees warmer today, but dewpoints are 15 to 20 degree higher. The upper trough will slowly move across TX during this period. The low level flow will remain from the southeast reinforcing the deep moisture. Low temperatures Wednesday morning will be around ten degrees warmer than this morning. The low level pattern will continue to be stagnant and warmer temperatures will move in Wednesday with highs in the 80s and lower 90s.
146 PM CDT Tue Apr 23 2024 - Scattered showers and isolated thunderstorms will accompany a cold front on its approach today and passage tonight.
1242 PM CDT Tue Apr 23 2024 (Today through Wednesday) Mid-level ridging over Mexico will build into Deep South Texas providing subsidence through the period. At the surface, high pressure across the northern Gulf of Mexico will continue to slide eastward through Wednesday. The warm southeasterly flow will allow temperatures to reach the low to mid 80s across much of the area today under mostly cloudy skies. Wednesday will be warmer with near normal temperatures, highs ranging from the 70s at the beaches to the upper 80s to the lower 90s across the Rio Grande Plains.
Issued by National Weather Service Pittsburgh PA 1125 AM EDT Tue Apr 23 2024 Dry and breezy today ahead of a cold front. Dry conditions will continue today before a cold front swings through overnight bringing generally light rain to the region. Breezy southwesterly winds this afternoon and into early evening can be expected ahead the mentioned front, however, most locations should see a relatively brief period of lighter winds this evening with decoupling prior to FROPA Afternoon min RH values in the lower 20s, low 10hr fuel moisture values, and gusts up to 25mph has prompted the issuance of a fire danger statement for today after coordination with land management agencies. Key Points: * Cold front exits east Wednesday morning.
1034 AM PDT Tue Apr 23 2024 Cooler, unsettled conditions return today and continue throughout late week with coastal drizzle possible this morning and again tonight into Wednesday morning.
Today will be dry, breezy and warmer. Discussion: A surface cold front has led to scattered radar returns across portions of the midwest and into the Great Lakes region. Tuesday afternoon will be dry as high pressure remains in control ahead of the aforementioned approaching surface boundary.
Looking at satellite imagery our area is under weak high pressure with a weak ridge axis over southeast Idaho currently. Expect dry conditions, slightly warmer than normal temperatures, and slightly breezy winds today. Look for southwesterly flow to set up by later this afternoon as the ridge axis weakens and moves east this afternoon. Moisture ahead of an upper level low off the coast of California will start to make its way into our southern areas late today. By Wednesday more moisture makes its way into our area in southwest flow as the upper level low moves over central California.
Water vapor/morning hand upper analysis this morning indicate broad upper low centered across the Great Lakes to north near the Hudson Bay region. Main adjustments was to bump up towards warmer consensus for highs but still seasonably cool. A cold front associated with the system to our north may dip into far northern parts of our forecast area late tonight, but warming ahead of this front will actually result in warmer temps across the board compared with this morning's temps.
Rain showers will increase overnight through Wednesday morning, with cooler weather moving in Wednesday and Wednesday night. Warmer and drier conditions will return for the end of the week, but more rain is on the way for the weekend. Some radar returns are also noted around Rochester, but with drier air prevalent in the low levels (note 30-40 degree sfc dewpoint depressions), this is almost certainly virga. It'll be cooler tomorrow with highs in the upper-40s and lower-50s across CNY, with 50s over much of NEPA, but near 60 in the Wyoming Valley. A cooler airmass, coupled with ideal conditions for radiational cooling Wed night will drop lows into the lower to middle 20s area-wide. A quiet period is in store as high pressure will be in control with dry air.
657 PM CDT Tue Apr 23 2024 - Another frost/freeze overnight with temperatures falling back near or below freezing outside the metro.
731 PM EDT Tue Apr 23 2024 - Scattered Showers and Storms This Evening - Widespread Freezing Temperatures Wednesday Night - Showers and Thunderstorms Over the Weekend, Warmer - Scattered Showers and Storms This Evening Scattered diurnal showers and storms expected this evening underneath the cold pool and trough aloft should quickly fade toward midnight.
731 PM EDT Tue Apr 23 2024 High pressure moves off the coast tonight.
558 PM CDT Tue Apr 23 2024 (Tonight through Wednesday night) An upper level ridge is gradually building into the region early this afternoon/evening, bringing in northwesterly winds aloft. These upper level winds will turn southwesterly once the ridge fully moves in early tomorrow afternoon. At the surface, a center of high pressure sits over the Southeast CONUS allowing for the continuation of southeasterly flow, therefore, increasing low level moisture over South Texas. By Wednesday afternoon, mostly sunny/partly cloudy conditions return with highs expected in the low 80s in the east to mid 90s out west across the Brush Country.
1026 PM EDT Tue Apr 23 2024 High pressure over the Southeast Coast will give way to a weak cold front moving down from the north.
959 PM CDT Tue Apr 23 2024 - Scattered showers and isolated thunderstorms will accompany a cold front on its approach today and passage tonight.
605 PM CDT Tue Apr 23 2024 - Scattered showers and isolated thunderstorms will accompany a cold front on its approach today and passage tonight.
630 PM CDT Tue Apr 23 2024 - High pressure will bring dry conditions to the region for Wednesday resulting in near-critical fire weather conditions.
925 PM CDT Tue Apr 23 2024 A cold front will begin to push across the Mid-South tonight. A weak cold front will bring a low chance of showers to the region late tonight through tomorrow morning.
559 PM CDT Tue Apr 23 2024 (This afternoon through Wednesday night) Temperatures are warming up quickly this afternoon with weak ridging overhead and westerly winds at the surface. As the dryline pushes east this afternoon, a cold front will continue to push south, approaching the northern Permian Basin early this evening. Upper ridging will remain in place tomorrow so thunderstorm coverage looks to be isolated at best, if at all.
631 PM CDT Tue Apr 23 2024 (Through tonight ) Cold front is presently moving into northeast OK, and is expected to continue pushing south tonight in response to northern stream wave moving across the Great Lakes area.
851 PM EDT Tue Apr 23 2024 A cold front moves through late tonight through Wednesday.
606 PM EDT Tue Apr 23 2024 Low pressure moves into the region on Wednesday bringing rain showers and perhaps a few flakes to the mountains.
730 PM EDT Tue Apr 23 2024 High pressure centered over the Southeast coast will drift southeast and offshore through tonight. A cold front and upper level disturbance will shift through the region Wednesday, with the front then settling to our south Wednesday night.
Still, CAMs show the mid-levels moistening up over the next several hours as a cold front approaches, bringing light showers mainly to areas north of I-40.
728 PM EDT Tue Apr 23 2024 High pressure remains over the area through the evening. A cold front crosses our region on Wednesday with scattered showers mainly across the mountains. Temperatures remain a few degrees either side of normal through the week with high pressure returning behind the front. Clouds increasing over the area this evening, along with increasing moisture, ahead of the next cold front expected to arrive Wednesday morning. Highest rainfall amounts will be west of the Blue Ridge, generally around 0. Temperatures a few degrees cooler tomorrow, but will be windier with northwest winds gusting into the 20mph range.
640 PM CDT Tue Apr 23 2024 (Tonight through Wednesday night) Upper level ridging over the Rockies will shift eastward to the Central Plains through the period. Low-level southerly to southeasterly return flow will continue through the period, providing additional low level moisture and warmer temperatures. Low temperatures tonight and Wednesday night are forecast to be in the low 70s.
High pressure remains in control of the weather pattern across South Florida tonight bringing dry conditions to the region. (Rest of today through Wednesday) High pressure over the SE US coast today will slide off into the western Atlantic on Wednesday.
Looks like the pseudo wedge of high pressure is beginning to build down the eastern seaboard and into NE GA this morning. Weak convergent surface flow over NE GA combined with differential heating over the higher terrain could produce a favorable environment for afternoon convection. Instability indices will be fairly weak due to the high pressure wedge building in so not expecting any storms that develop to become severe.
- RCG /Issued 853 PM MDT Sat Aug 30 2025/ - Meteorological Overview: Upper level ridge will build in over the Northern Rockies through the first half of the upcoming work week, which will allow temperatures to warm above normal across all locations. Winds will be light and variable beneath the ridging pattern with overall dry conditions.
1247 AM MDT Sun Aug 31 2025 - Mostly dry weather and gradually warmer temps continue through Labor Day. Ridge axis is centered directly overhead today and all models agree that we should see no showers or thunderstorms today. High temps today were a degree or two warmer than the NBM forecast once again. With that said, we're likely looking at solid mid 80s for most of the communities across the Snake Plain and Magic Valley today with highs in the lower 80s for communities in the mountains and highlands. Most of the week remains under the influence of amplified ridge of high pressure across the west.
- Cooler temperatures continue. - Couple of cold fronts expected later this week.
- Pockets of heavy rainfall are possible overnight tonight and through Sunday as a weak cold front moves through. Temperatures today will remain on the cooler side, low 80s to low 90s, given the potential for widespread cloud cover and shower coverage today. However, if conditions become less cloudy and there is less shower coverage, temperatures could end up warmer today.
104 AM CDT Sun Aug 31 2025 Drier conditions will persist through the remainder of the forecast as upper troughing continues to trend stronger across the eastern US. With a large upper cutoff low over the Great Lakes and high pressure over the western US, dry northwesterly flow aloft will persist Sunday through most of the week.
242 AM EDT Sun Aug 31 2025 High pressure brings dry conditions and comfortable temperatures through midweek.
- Cooler temperatures continue. Toward sunrise, the highest chance of showers and thunderstorms will be near the I-44 corridor. Mahale (Sunday through Monday night) The highest chance of showers and thunderstorms will generally be along and southeast of I-44 on Sunday with the effective boundary located near the I-44 corridor by sunrise Sunday.
- Fall-like air mass settles in for the middle/end of the week, with high temperatures not making it out of the 60s and low temperatures dropping into the 40s - a few areas in northern Iowa may even drop into the upper 30s! Weakly sheared pattern dominates much of the CONUS, with one ridge of high pressure drifting southeast from the Canadian Prairie Provinces towards the Great Lakes; while a second is entrenched across the western U. The pattern doesn't change much Sunday-Monday with this slow- to-move blocking pattern in place across the region. Widespread clouds will hold temperatures down as well, with highs mostly only reaching into the low 70s both days.
Showers and embedded thunderstorms end from west to east tonight as a weak trough of low pressure moves through the area. A few showers or storms will be possible across central Kansas through Monday then be pushed southward as a dry cold front moves through the area Monday night.
- Confidence remains high that below normal temps will remain in place through the next 7 days with a strong cold front moving through Wed-Wed night. At the surface, broad area of high pressure stretches across the Great Lakes with light moist return flow across the Plains. 700mb trough will continue to slowly make its way across the forecast area this morning and will keep at least some scattered showers and isolated storms in place today, especially for areas east of I-135.
Slightly cooler Monday, but will generally fall below 80s for highs the rest of the week.
The final days of meteorological summer will wrap on the drier and slightly cooler side.
147 AM EDT Sun Aug 31 2025 A northwest flow of chilly air will predominate into tonight as a chilly Canadian High Pressure system drops over NY and PA for Sunday and Monday. High pressure remains in control of our weather through mid-week with dry and moderating temperatures.
Very weak upper and surface flow continues into this morning with blocking ridge still over northern MN into ONT and weak upper circulations to our west and south.
1237 AM CDT Sun Aug 31 2025 (Rest of tonight and Sunday) High pressure will remain anchored for another night. There will be enough sunshine through those partly cloudy skies to help temps reach the lower 80s (NE AL) to the upper 80s (elsewhere).
Tonight, northwest flow will continue streaming a few high level clouds overhead, but skies will remain mostly clear over the Lower Ohio Valley. High temperatures are expected to be slightly warmer across southern Indiana with temperatures near 80.
126 AM EDT Sun Aug 31 2025 High pressure will remain across the region through Monday. Some showers will develop mid week ahead of a cold front. A large area of high pressure will sprawl from the Great Lakes thru New England. Lows overnight to drop to readings ranging from the upper 40s in rural protected locations to the lower 50s in urban areas. Highs on Monday to range from the upper 70s to the lower 80s. On Monday evening, a broad and weak upper low will be centered over Pennsylvania, with an overall pattern of upper troughing still in place across much of the eastern CONUS.
A persistent and unseasonably deep eastern CONUS longwave trough will be the primary weather influence for the area as we go through next.
Drier conditions will persist through the remainder of the forecast as upper troughing continues to trend stronger across the eastern US. With a large upper cutoff low over the Great Lakes and high pressure over the western US, dry northwesterly flow aloft will persist Sunday through most of the week.
(Today through Monday) A prolonged period of unsettled weather will continue across South Florida as deep upper-level troughing remains established over the Eastern Seaboard. Satellite imagery early this morning shows the trough axis has ejected over the western Atlantic, while a corresponding surface boundary gradually drifts southward along the Florida peninsula. Highs this weekend will remain in the low-mid 90s, while lows could dip to the low-mid 70s overnight.
Unsettled pattern with previously advertised wetter and relatively cooler conditions will settle into the area today in association with a stalled surface boundary and westerly flow aloft south of E CONUS longwave troughing. In response, high temps would likely warm a few degrees back into the lower 90s, after being limited mainly to the upper 80s today through mid week due to the anticipated additional cloudiness. Scattered to numerous storms likely each day, with the greatest potential for storms near the coast generally in the morning to early afternoon, with the higher chances inland during the afternoon and evening across the interior.
(Today through Monday) The pattern remains mostly unchanged today with broad 500mb ridging locked over the Desert Southwest and persistent troughing affecting the eastern CONUS.
A well advertised trough digs into the Northern Plains and Upper Midwest midweek.
1037 PM MDT Sat Aug 30 2025 - Mostly dry weather and gradually warmer temps for Labor Day weekend. Upper ridge beginning to amplify through the Great Basin per WV satellite imagery. Most of the week remains under the influence of amplified ridge of high pressure across the west.
High pressure is centered over the southwestern U. As the aforementioned high pressure center slowly shifts northward early in the week, minor shifts to a low level south/southeasterly flow will begin to draw moisture northward.
618 AM CDT Sun Aug 31 2025 (Today through Monday) The pattern remains mostly unchanged today with broad 500mb ridging locked over the Desert Southwest and persistent troughing affecting the eastern CONUS.
The center of the mid-level high/ridge will drift north today, turning mean winds over southeastern Arizona to the east to northeast.
There remains a chance for stratus to affect TLH/ABY/VLD through the next several hours with VLD having the highest probs and kept a tempo group for this through 14Z while removed mention at the other sites.
- Drier and warmer Tue, with mainly isolated thunderstorms over the mountains.
Have seen traces of precip reported in the area, but moisture influx into the area isn't great, so not expecting anything more than some sprinkles, save for maybe the higher terrain. Satellite imagery currently shows a broad low pressure system circulating just off the coast. Models have this low meandering towards the Olympic Peninsula before retrograding during the week, leaving our forecast area caught between two deep troughs. A quasi-ridge pattern results, which will cause a distinct warm-up through the midweek. CAMs are not too bullish on coverage this afternoon and evening, likely due to the low shear and subsidence aloft as weak ridging forms ahead of this offshore low, but the ingredients still remain for at least isolated activity for the area.
406 AM MDT Sun Aug 31 2025 - Mostly dry weather and gradually warmer temps continue through Labor Day. Ridge axis is centered directly overhead today and all models agree that we should see no showers or thunderstorms today. High temps today were a degree or two warmer than the NBM forecast once again. With that said, we're likely looking at solid mid 80s for most of the communities across the Snake Plain and Magic Valley today with highs in the lower 80s for communities in the mountains and highlands. Most of the week remains under the influence of amplified ridge of high pressure across the west.
- Temperatures surge upward today to near normal, then a few degrees warmer in the coming days. Drier northwesterly flow and the building ridge continue to shunt moisture southward. A few stray clouds linger along the west side of the Divide, but nothing blocking a mostly starry night. This will come in handy for evaporative coolers this afternoon as we warm back into the upper 80's and 90's in our desert valleys. Tonight, clear skies and the lower dewpoints will usher in pleasant conditions again across the region. Monday afternoon, the ridge amplifies further over the West in a vaguely blocking pattern. Quiet high pressure conditions will quickly return Monday evening. Synoptically speaking, an area and ridge of high pressure will be centered over Utah as a deep, stationary low spins off the PacNW coast.