Aikyam-Lab/Synoptic-Bench huggingface dataset:
924 PM EST Fri Jan 31 2025 High pressure will build into the region bringing cooler air for Saturday. Cold front is beginning to work through the area, currently residing along the I-70 corridor. These will subside into the early morning hours as high pressure builds in from the north. Eventually, a cold front will push south of the area overnight thereby ending shower chances and warm conditions later tonight. High pressure skirts by to the north of the Ohio Valley on Saturday. Northeasterly flow south of the high will keep temperatures near seasonal averages under a mix of sun and clouds.
448 PM MST Fri Jan 31 2025 - Isolated snow showers central mountains, otherwise warmer all areas with winds increasing in and near the mountains.
551 PM CST Fri Jan 31 2025 (Tonight) An upper trough will pivot quickly east this evening through the OH and TN valleys. Showers are expected to develop this afternoon in northern MS and western TN which will also move through this evening with the trough. Overnight lows will be in the lower 40s for most areas, with upper 30s in a few valleys.
The main upper- level low pressure system, has moved east, past our area. By midnight, north/northwest winds will go light and calm creating a nice and quiet overnight period with lows in the low to mid 40s. Tomorrow, a cooler airmass will settle over the Mid-South resulting in highs in the upper 40s to lower 60s.
Today and tomorrow: A second wave of precipitation is reforming in the Columbia Basin ahead of the cold front passage tonight. Locations below 3000 feet are mostly done seeing any more snow today except the far north areas along the Canadian border where they are hanging onto the cooler air. Cold front timing for tonight has not changed much from the latest set of guidance. The cold front will cross the Cascades around 9-11 pm this evening, then make it to Spokane around 1-3 AM. Convective snow showers are expected in behind the cold front for the eastern third of WA, Cascades, and north Idaho Saturday.
1242 AM EST Sat Feb 1 2025 (Rest of today through Saturday) An area of high pressure centered off the Mid-Atlantic will move eastward today. A weakening cold front associated with an area of low pressure forecast to move across the northeast US will approach the area on Saturday, eventually stalling around the Lake Okeechobee region.
953 PM CST Fri Jan 31 2025 (This evening through Saturday) Rain showers are ongoing across much of Central Alabama behind a cold front, which is currently working through southeastern Central Alabama.
(00Z TAFS) Cold front has cleared the area with all convective activity now well east of the TAF sites. (Now through Saturday Night) An upper trof over the eastern states weakens and exits off into the western Atlantic through Saturday morning. Showers currently over the easternmost portion of the area, associated with a pre-frontal surface trof, exit to the east by late this afternoon. Lows tonight range from the lower 40s inland to the mid to upper 40s at the coast, then Saturday night will be a bit cooler and range from around 40 well inland to the mid 40s at the coast.
At the surface, high pressure is over the Eastern U. Highs today will be mainly in the lower 50s.
- Stronger Arctic front late week with much cooler weather returning. KAH (Tonight through Friday) For the extended, the temperature forecast will be the main challenge, with continued uncertainty regarding the timing and southward progression of cold fronts.
249 AM EST Sat Feb 1 2025 Some rain showers linger through the morning then high pressure builds in.
Currently - The wind field around the Keys is collapsing due to an Atlantic ridge retreating eastward as a prefrontal trough pushes off the Atlantic Coast. While the low level inhibition may lift some, it will remain prominent. A nebulous pressure field is in place across the area with the Atlantic ridge off to the east and troughing just off the Atlantic Seaboard.
1027 PM CST Fri Jan 31 2025 (Tonight through Saturday night) There's a Mid-level Low centered near the TX/OK border this morning with a trough extending over northern Mexico to the Baja peninsula. Recent model runs have the low further south resulting in no rain chances for the short term. However, should the low track further north over our CWA, PoP's would increase this weekend. Overnight lows tonight will range in the low 40s (inland) to 50s (along the coast) and will range in the mid 40s to 50s tomorrow night.
(Today and tonight) Surface pressure falls across the High Plains have already commenced this morning in advance of upper storm system moving into the Pacific northwest. Meanwhile just above the surface 40-50kt veered low level flow will bring warmer/drier air off the higher terrain into the area this afternoon. North of the trough temperatures expected to fall into the 30s.
Expect clear skies overnight as high pressure settles over the region. /20/ (This evening through Saturday Night) Dry and warmer than normal conditions will remain in place as the weekend begins across the Four State Region. This is due to post- frontal surface ridging making its way across Texas. As the ridge axis shifts east into the area, winds will slacken overnight tonight, allowing for some radiational cooling and enhanced fog development potential areawide.
329 AM EST Sat Feb 1 2025 Cooler, but still warmer than normal, temperatures expected today.
1103 PM CST Fri Jan 31 2025 (This evening through Saturday Night) Dry and warmer than normal conditions will remain in place as the weekend begins across the Four State Region. This is due to post- frontal surface ridging making its way across Texas. As the ridge axis shifts east into the area, winds will slacken overnight tonight, allowing for some radiational cooling and enhanced fog development potential areawide.
123 AM EST Sat Feb 1 2025 High pressure will build into the region bringing cooler air today. Cold front is beginning to work through the area, currently residing along the I-70 corridor. These will subside into the early morning hours as high pressure builds in from the north. Eventually, a cold front will push south of the area overnight thereby ending shower chances and warm conditions later tonight. High pressure skirts by to the north of the Ohio Valley on Saturday. Northeasterly flow south of the high will keep temperatures near seasonal averages under a mix of sun and clouds.
1032 PM MST Fri Jan 31 2025 - Isolated snow showers central mountains, otherwise warmer all areas with winds increasing in and near the mountains.
Mostly sunny to sunny skies and WAA will allow temperatures to top out in the 60s along the coast and in the low 70s for the majority of the inland areas. Lows for tonight will drop into the 40s inland and in the low 50s along the coast. Expect temperatures across the area to top out in the upper 60s along the coast and in the low to mid 70s inland.
533 AM CST Sat Feb 1 2025 Quiet weather to start the forecast as high pressure builds into the Midsouth this weekend.
(Today through Sunday) Northern portion of yesterday's upper trough was along the Atlantic Coast this morning, while the southern portion was cutting off a low over northern Mexico. At the surface, high pressure extended from the western Great Lakes to Texas. The upper low over Mexico won't make a lot of eastward progress over the next 36 hours, and will be south of Brownsville Sunday evening, with upper ridging over the Florida Straits. Overnight lows tonight should generally be in the 40s, although one or two readings just below 40 could happen in the normally cooler drainage areas of the Pascagoula River and Pearl River basins. Highs on Sunday will be a bit warmer, with areas away from the immediate coast getting into the 70s.
Widespread low level clouds, and isolated rain showers, will be moving across the area early this morning, as a cold front also moves through the region. Patchy valley fog will also be possible before the colder air behind the cold front arrives and overtakes the forecast area. Today's high temperatures will be much cooler than yesterday's, as cooler air filters in behind the departing cold front. We will likely see cloud cover lingering over eastern Kentucky to varying extents even after the cold front departs, as another area of low pressure is expected to move by to our north tonight and Sunday.
- Colder air arrives Sunday behind a cold front and persists through the upcoming week.
At the surface, lee troughing is continuing to strengthen with high pressure through the Mississippi Valley. Confidence is high that we will see some fog, but have lower confidence on how low visibilities will get Lee troughing will continue to deepen today as a series of weak upper impulses track out of the Rockies and across the Northern/Central Plains. Currently expecting even warmer temps for Sunday, with all locations seeing highs in the 60s. A broad area of low amplitude upper ridging will setup across the central CONUS for Mon night through Tue evening with some colder air finally making it into the area, bringing highs back closer to seasonal normals on Tue.
407 AM EST Sat Feb 1 2025 High pressure builds across the region today before departing to the east tonight.
At the surface, high pressure will be centered from the Great Lakes to the central Gulf Coast today. While the high will bring Arkansas dry conditions, clouds will hang on in northern, eastern, and central sections of the state. The high will depart tonight, and an east/southeast wind will gradually turn to the southwest.
413 AM EST Sat Feb 1 2025 High pressure will build across the Great Lakes bringing cooler air today. Highs to range from the lower 30s north to the lower/mid 40s south of the Ohio River. Lows tonight to range from the mid/upper 20s northeast to the lower 30s southwest.
(Now through Sunday Night) Upper troughing continues to push east of the region with southwest flow prevailing in its wake. At the surface, high pressure remains in control of the forecast area through Sunday night.
527 AM CST Sat Feb 1 2025 (Today through Sunday) Northern portion of yesterday's upper trough was along the Atlantic Coast this morning, while the southern portion was cutting off a low over northern Mexico. At the surface, high pressure extended from the western Great Lakes to Texas. The upper low over Mexico won't make a lot of eastward progress over the next 36 hours, and will be south of Brownsville Sunday evening, with upper ridging over the Florida Straits. Overnight lows tonight should generally be in the 40s, although one or two readings just below 40 could happen in the normally cooler drainage areas of the Pascagoula River and Pearl River basins. Highs on Sunday will be a bit warmer, with areas away from the immediate coast getting into the 70s.
943 AM EST Sat Feb 1 2025 A weak cold front is located just north of the area this morning, across southern WV, SE KY, and the Middle TN/KY border, identified by a dewpoint gradient, wind shift, and change in cloud structure in visible satellite imagery. At the surface, high pressure is over the Eastern U. Highs today will be mainly in the lower 50s.
If the cloud deck is more persistent than forecast, then temperatures may be a little cooler than forecast along the Highway 82 corridor. /EC/ Sunday Night through next Saturday: Quasi-zonal flow will continue across much of the CONUS with a subtropical ridge centered over the Bahamas/Cuba, and southerly windflow at the surface across the southeastern states promoting a warming trend across the southeastern CONUS going into the next workweek.
642 AM EST Sat Feb 1 2025 High pressure will build across the Great Lakes bringing cooler air today. Highs to range from the lower 30s north to the lower/mid 40s south of the Ohio River. Lows tonight to range from the mid/upper 20s northeast to the lower 30s southwest.
The highest accumulations will fall over the Park Range.
Temperatures will be warmer due to southerly wind flow in place as highs this afternoon will rise into the lower 80s across most areas. What is left of the front will gradually dissipate to the north of the region on Sunday as mid level ridging holds strong across South Florida. At the surface, a light easterly wind flow will become established as the day progresses with high pressure building over the region.
As winds develop a more onshore component, moisture and warmer temperatures will move into the area, making tonight's lows just a little warmer in the upper-40s to mid-50s.
- Strong northwest winds are expected behind a cold front tonight through Sunday, with near-steady or falling temperatures through the day Sunday. Currently a double barrel low pressure system is moving into the area. This afternoon, a warm front will move west to east across the state from the northern low. Temperatures today will be well above average, especially with that warm front. We are looking at the low 20s in the northeast to the mid 40s in the southwest and south central. Sunday will be much cooler as a cold front sweeps in from Canada Saturday night. With this cold front and high pressure bubble behind it, there is no snow forecast for Sunday.
- South winds tonight will hold lows in the 40s - Sundays highs will be a few degrees warmer than today A flat zonal pattern over TX and SW winds in the 850-700 mb layer will keep the area mostly cloud free in the short term. South winds continue into the night at the surface and, the less decoupled winds will translate to warmer minimum temps in the 40s.
As a result, overnight temps will be a few degrees warmer, trending in the low and mid 40's. By Sunday night, zonal flow aloft will begin to emerge across much of the CONUS as overnight lows increase by almost 10 degrees, ranging from the low to mid 50's.
914 AM EST Sat Feb 1 2025 High pressure will build across the Great Lakes bringing cooler air today. Lows tonight to range from the mid/upper 20s northeast to the lower 30s southwest.
Quiet weather to start the forecast as high pressure builds into the Midsouth this weekend.
(Today through Sunday afternoon) An upper-level trough continues to make its way eastward throughout the day. On its heals, a ridge centered off the coast of Baja California takes control of our weather pattern. At the surface, lee troughing develops a low near the Texas Panhandle resulting in southwesterly winds. The ridge continues to build Sunday, nudging temperatures up a few degrees more.
- Strong northwest winds are expected behind a cold front tonight through Sunday, with near-steady or falling temperatures through the day Sunday. Currently a double barrel low pressure system is moving into the area. This afternoon, a warm front will move west to east across the state from the northern low. Temperatures today will be well above average, especially with that warm front. We are looking at the low 20s in the northeast to the mid 40s in the southwest and south central. Sunday will be much cooler as a cold front sweeps in from Canada tonight. With this cold front and high pressure bubble behind it, there is no snow forecast for Sunday.
Embedded moisture below a strong cap around the H85 level should help maintain the low stratus for much of the day, as afternoon highs struggle to surpass the mid 50s/near 60F.
With high pressure's influence remaining over the area while the stalled boundary weakens, Sunday should be another generally dry and warm day across the area. Overnight lows in the 60s will warm to afternoon highs in the lower to mid 80s across much of the area save for some portions of the metro area east of the Turnpike in Broward/Palm Beach and the Palmetto Expressway in Miami-Dade.
Precipitation may begin as some brief snow or freezing rain, but little to no accumulation is expected.
1145 AM CST Sat Feb 1 2025 Quiet weather to start the forecast as high pressure builds into the Midsouth this weekend.
Aside from some continued light snow across the higher terrain today, things have been relatively quiet elsewhere with just a few rain/snow showers moving through the Snake Plain, Magic Valley and Arco Desert. We've already seen an increase in warm air out ahead of this with temperatures climbing above freezing just about everywhere, especially in our valley locations. This warmer air will keep overnight lows near or above freezing for much of our population centers tonight making p-type forecasting slightly challenging once again. After daybreak Sunday, warmer temps will allow p-type to transition back to rain in the valleys as it will likely be even warmer tomorrow than today.
(This evening through Sunday Night) Dry and warmer than normal conditions will remain in place through the weekend across the Four State Region. This is due to post- frontal surface ridging making its way towards the Mississippi River. As the ridge axis shifts further east of the area, southerly winds return overnight tonight, allowing for slightly milder temperature minimums in the low-to-mid 40s.
Both high and low temperatures Sunday and Sunday night will be about 5 degrees warmer on average. The overall mid-level flow over the CONUS is zonal with a developing Low over Mexico with troughing extending from the west coast of Mexico up through northeastern TX. The trough axis will moves southeast across our CWA today.
(This afternoon through Sunday) High pressure will remain over the southeast through the weekend. Highs today will be in the 60s, with highs tomorrow several degrees warmer.
1252 PM EST Sat Feb 1 2025 High pressure will build across the Great Lakes bringing cooler air today. Lows tonight to range from the mid/upper 20s northeast to the lower 30s southwest.
222 PM EST Sat Feb 1 2025 (This afternoon through Sunday) Key message: - Dry and warmer weather will continue through the short term. This will bring in a slightly cooler airmass to NE GA Tonight and Sunday but still expecting Highs in the 50s Tomorrow across that area.
If the cloud deck is more persistent than forecast, then temperatures may be a little cooler than forecast along the Highway 82 corridor. /EC/ Sunday Night through next Saturday: Quasi-zonal flow will continue across much of the CONUS with a subtropical ridge centered over the Bahamas/Cuba, and southerly wind flow at the surface across the southeastern states promoting a warming trend across the southeastern CONUS going into the next workweek.
(Tonight through Sunday night) Key Messages: - Southerly winds tonight will bring warmer air - High temperatures Sunday will be a few degrees warmer than today High pressure over Texas is keeping skies mainly clear across South- Central Texas today. Temperatures are responding to the sunshine and are around five degrees warmer today. This will begin the return of warmer, moister air. The high pressure will keep clouds to a minimum overnight. Warmer air will continue to move in Sunday. Highs Sunday will be well above normal around five degrees warmer than today. Lows will be warmer again.
By this afternoon, temperature maximums will reach the upper 60s (warmer than normal for this time of the year). As a result, overnight temps will be a few degrees warmer, trending in the low and mid 40's. By Sunday night, zonal flow aloft will begin to emerge across much of the CONUS as overnight lows increase by almost 10 degrees, ranging from the low to mid 50's.
349 PM EST Sat Feb 1 2025 High pressure will move off to the east this evening allowing a warm front will lift across the area late tonight into Sunday morning.
(This evening through Sunday night) Quite the pleasant weekend is unfolding for us as the region remains under broad mid level ridging and southerly winds at the surface. Further to the west, where also some thicker cirrus cloud cover has helped to limited insolation, temperatures have only reach into the lower 60s. Later tonight, a weak front drops south into the region as an area of low pressure skirts by to the north.
307 PM EST Sat Feb 1 2025 High pressure will depart our area Sunday. A warm front lifts north through the region Sunday night.
This is in response to a high pressure centered to our east, bringing south to southeast surface winds through the entire short-term period. A slightly warmer Sunday is expected with highs generally in the mid to upper 70s.
Temperatures have risen into the low 50s where the clouds have cleared, but remain in the 40s under the stratus deck. Sunday night: Very mild conditions are expected with lows from the low 40s to near 50.
A Winter Storm Warning has been issued for the Sierra Nevada from Yosemite National Park to Kings National Park as six to twelve inches of snowfall is expected above 8,000 feet; totals up to three feet are possible at the highest elevations. In addition to the rainfall into foothills, heavy snow is expected for the Sierra Nevada above 8,000 feet through early tomorrow morning, with up to a foot of snow possible for those elevations, and up to three feet of snow at the higher elevations of the mountains. The trough that is driving the incoming moisture over Northern California is expected to dip south and cause the moisture to come directly into Central and Southern California.
As surface ridging builds south from the Appalachians, surface winds will swing around to the southeast.
High temperatures are expected to be slightly warmer Sunday afternoon, with highs ranging from the upper 70s to mid 80s across the area.
We currently have a cold front stalled in South Florida. This will help to keep temperatures a little cooler today with highs staying below 80 degrees for most of us.
1113 AM CST Sat Feb 1 2025 (Today through Sunday) Northern portion of yesterday's upper trough was along the Atlantic Coast this morning, while the southern portion was cutting off a low over northern Mexico. At the surface, high pressure extended from the western Great Lakes to Texas. The upper low over Mexico won't make a lot of eastward progress over the next 36 hours, and will be south of Brownsville Sunday evening, with upper ridging over the Florida Straits. Overnight lows tonight should generally be in the 40s, although one or two readings just below 40 could happen in the normally cooler drainage areas of the Pascagoula River and Pearl River basins. Highs on Sunday will be a bit warmer, with areas away from the immediate coast getting into the 70s.
1233 PM EST Sat Feb 1 2025 A weak cold front is located just north of the area this morning, across southern WV, SE KY, and the Middle TN/KY border, identified by a dewpoint gradient, wind shift, and change in cloud structure in visible satellite imagery. At the surface, high pressure is over the Eastern U. Highs today will be mainly in the lower 50s.
By this afternoon, temperature maximums will reach the upper 60s (warmer than normal for this time of the year). A weak stratocu field has backdoored SW into portions of SW and SCntrl AR and extreme NE LA along the proximity of sfc ridging, but with low level winds veering more SSE this afternoon, this cu field should not spread much farther W than its current position, before mixing out later this afternoon.
What stuck out to us is that the highlighted area indicating low clouds or fog seemed to be moving northward on the satellite loop. Breezes will then shift to the northeast to east as a decaying cold front approaches from the north. High pressure will once again build in over the Eastern Seaboard by the start of the work week allowing breezes to gradually freshen and veer back to the east.
- Stronger Arctic front late week with much cooler weather returning. Lee side troughing, along with surface ridging from the Ohio Valley to the TX Gulf Coast, will yield an increase in south winds today, especially across eastern OK.
Discussion: Persistent cloud cover this morning is starting to show signs of erosion from the north as a weak cold front drifts southward. At Tri-Cities, there will be a little better pressure gradient and downslope flow as high pressure over the Mid-Atlantic extends SW along the Blue Ridge. On Sunday we will have a good SW up-Valley flow as low pressure tracks into the Great Lakes and high pressure continues to extend SW across the Carolinas and Georgia, with a nearly zonal flow through the mid and upper levels.