Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front swings southeast through the region late this afternoon into the evening. Following the front, much drier air surges southeast as a fresh area of high pressure builds in from the northwest. Lows Thursday night tumble back into the 40s across the board as cooler and drier air returns to the region as we head into the final day of February.
751 PM EST Thu Feb 27 2025 A cold front will push offshore tonight.
557 PM CST Thu Feb 27 2025 (Tonight) Skies have cleared through most of the area in the wake of the cold frontal passage with the exception a few cirrus clouds as dry air continues to filter into the area from the northwest.
Current afternoon visible satellite imagery showing only a few high clouds moving north to south through the area, following the eastern periphery of the upper-level ridge. Clear skies will allow for high temperatures to creep up to above normal, but will continue ample radiational cooling at night to bring low temperatures below freezing.
pdf High pressure will continue moving away to the east this evening, as a cold front moves southeast into the region. Lows will range from the mid to upper 40s across SE GA and interior NE FL, to the lower to mid 50s coastal and north central NE FL.
Due to this cloud cover was increased slightly over some spots thus the high temperatures were adjusted down a couple of degrees as cloud cover is expected to stick around through the afternoon.
Light showers in SW VA tonight with a passing trough. Discussion: A dry low level air mass will continue to build into the area behind the exiting cold front through this evening. After sunset, a mid/upper level trough will cross the Appalachians. Colder temperatures aloft under this trough will create steep lapse rates that may be able to squeeze out enough moisture for measurable precip in parts of SW VA. Through Friday, we will have a nearly zonal flow aloft with high pressure over the TX extending across the Deep South and a low pressure system over the Great Lakes.
(This evening through Friday Night) Visible satellite imagery showing clouds have scattered out in the low-levels with mid-high level clouds moving across the CWA from west to east. Lows for tonight will be in the low 40s to low 50s north of I-10 and in the 50s south of I-10. Highs will be in the low to mid 70s with lows in the upper 40s/low 50s.
933 PM EST Thu Feb 27 2025 A cold front will push offshore tonight.
A closed low over Arizona brought with it gusty northeasterly winds to the Mojave Desert today. There was some uncertainty in speeds 24 hours ago, with quite a large discrepancy between forecast NBM speeds and HREF speeds; however, speeds have generally ranged between 25 and 35 mph, with isolated instances of speeds at or above 40 mph in the higher terrain of southern Mohave County and eastern San Bernardino County.
Breezy northeast winds and cooler temperatures, along with a slight chance of showers near the White Mountains through early this evening. Expect cooler temperatures, gusty winds, and chances of showers. Winds are not likely to go light and variable overnight, remaining around 5-15 mph into early Friday as the low sits nearly stationary across AZ. Strongest winds will remain along and just south of the higher terrain of the Mogollon Rim and Bradshaw Mountains.
748 PM EST Thu Feb 27 2025 Cold front will continue to move southeast of the area this evening.
- Above normal temperatures will continue through Friday, with highs in the low to mid 60s.
Unseasonably warm temperatures will continue through Friday due to a ridge of high pressure over our area.
A strong upper level ridge is centered over northern Nevada with a closed upper level low spinning off the California coast. The upper high will remain in place on Friday bringing more mild weather for inland west side valley areas with highs in the upper 60s to low 70s.
610 PM EST Thu Feb 27 2025 High pressure will nose into the region tonight, offering dry conditions. Upper trough swinging through the Great Lakes and Ohio Valley will exit to the east tonight. High pressure will nose into the region late from the southwest, allowing winds to slacken and clouds to decrease. Temperatures will dip into the low 30s. The ridge of high pressure will push off to the east of our area on Friday as a fast-moving cold front approaches from the northwest. The cold front will slice through the area Friday night.
653 PM CST Thu Feb 27 2025 (This evening through Friday Night) Visible satellite imagery showing clouds have scattered out in the low-levels with mid-high level clouds moving across the CWA from west to east. Lows for tonight will be in the low 40s to low 50s north of I-10 and in the 50s south of I-10. Highs will be in the low to mid 70s with lows in the upper 40s/low 50s.
847 PM EST Thu Feb 27 2025 High pressure will nose into the region tonight, offering dry conditions. Forecast lows drop to near freezing areawide. The ridge of high pressure will push off to the east of our area on Friday as a fast-moving cold front approaches from the northwest. The cold front will slice through the area Friday night.
(Today through Saturday) After a cooler start to Friday with temperatures in the 40s and lower 50s, expect a quick warmup as clouds clear and give way to abundant sunshine to end the work week. Expect high pressure to slide east during the day, allowing surface flow to resume out of the south by the afternoon hours.
(Today through Saturday) Models and sfc analyses depict broad high pressure dominating the SE CONUS, while a very long sfc boundary stretches from a storm system over the NW Atlantic, down to the central portions of the Florida peninsula and into the Gulf waters.
This is keeping temperatures elevated and dewpoints on the lower side due to continued mixing. Light showers in SW VA tonight with a passing trough. Discussion: A dry low level air mass will continue to build into the area behind the exiting cold front through this evening. After sunset, a mid/upper level trough will cross the Appalachians. Colder temperatures aloft under this trough will create steep lapse rates that may be able to squeeze out enough moisture for measurable precip in parts of SW VA. Through Friday, we will have a nearly zonal flow aloft with high pressure over the TX extending across the Deep South and a low pressure system over the Great Lakes.
Breezy northeast winds and cooler temperatures, along with a slight chance of light showers through early this evening. Expect cooler temperatures, gusty winds, and chances of showers. There are still some very light sprinkles or VIRGA out there, as a weak upper low sits nearly directly over us. This upper low moves away on Friday, opening the door for a more progressive and perhaps stormier patter over the weekend.
202 AM EST Fri Feb 28 2025 Cooler and drier conditions will be in place today. A quick rebound in temperatures is expected on Saturday ahead of a dry cold front moving through Saturday night.
A mid latitude trough swinging off the Atlantic Coast along with earlier day time heating has resulted in a col near the Keys this evening. Earlier light and variable breezes are giving way to gentle to moderate northwesterly breezes as high pressure centered over Texas spreads eastward behind the departing trough. A trough moving off the Atlantic coast, along with day time heating has produced a col that is currently working its way eastward out of Keys waters. Broad ridging centered over Texas is filling in behind and resulting in gentle northwest to northerly breezes spreading across Keys waters.
Temperatures will warm up tomorrow into the 70s, but will cool down Saturday as a dry cold front pushes in from the north shifting winds back to the NW and highs in the 60s, 50s over northern AR.
Subsidence from ridging aloft will dominate and cause skies to clear by this evening, setting the stage for climbing temperatures and a favorable night for fog. Highs today will likely climb from the low 70s along the coast to around 80 over the Brush Country. Temperatures continue to warm with highs in the low to mid 80s inland.
1240 AM EST Fri Feb 28 2025 A cold front will push off our coast overnight. High pressure will build across the Southern states through Friday night, then a second cold front, stronger but mostly dry, will push through the area Saturday afternoon.
pdf High pressure will continue moving away to the east this evening, as a cold front moves southeast into the region. Lows will range from the mid to upper 40s across SE GA and interior NE FL, to the lower to mid 50s coastal and north central NE FL. (Friday through Saturday night) High pressure conditions will build in for the end of the week and into Saturday resulting in dry weather, mostly clear skies, and mild winds through the forecast period. Daily high temperatures for this period will reach up into the lower to mid 70s with overnight low temperatures dropping down into the 40s.
(Today and tonight) A cold front swept through the region earlier this morning. Daytime highs will be a skosh cooler Friday afternoon with many locations in the lower to middle 70s. High pressure over the northeastern Gulf will create a weak enough wind to allow a seabreeze to push inland this afternoon and allow temperatures to cool off a few degrees. Temperatures are forecast to tumble into the lower to middle 40s across region. A few of our cooler spots may see temperatures tumble into the upper 30s if skies remain crystal clear all night.
1147 PM CST Thu Feb 27 2025 (This evening through Friday Night) Visible satellite imagery showing clouds have scattered out in the low-levels with mid-high level clouds moving across the CWA from west to east. Lows for tonight will be in the low 40s to low 50s north of I-10 and in the 50s south of I-10. Highs will be in the low to mid 70s with lows in the upper 40s/low 50s.
Gusts to 45 mph are possible through early/mid afternoon, followed by a slight weakening in wind speeds before an uptick in west-northwest winds behind a strong cold front this evening into early tonight. - Light Rain Tue, Then Heavier Rain or Snow with Wind on Wed High confidence from strong ensemble system support of a large midlatitude cyclone tracking from the Central Plains to the Southern Great Lakes Tue-Wed.
100 AM EST Fri Feb 28 2025 A cold front will push offshore tonight. High pressure will prevail Friday into Saturday, followed by a dry cold front Saturday night.
Upper level ridge remains over the area through the weekend.
The dry and mild conditions will continue through Saturday afternoon as an upper level ridge of high pressure sits over the PacNW. Underneath the ridge, a tightened pressure gradient between the Columbia Basin and the Lower Treasure Valley will continue to produce breezy winds through the southern Grande Ronde valley as well as along the base of the Blue Mountains tonight through late Friday. High pressure in the Lower Treasure Valley and across ID will weaken Friday night, resulting in winds weakening Friday night. Saturday night, a narrow, deep trough will arrive to the PacNW, with chances of light snow and lower elevation rain chances increasing across the Cascade crest and central OR.
Expect quiet weather for the rest of this week as high pressure brings warm, dry and mostly sunny conditions through Friday. An upper-level low diving toward southern California will yield a brief Rex block as the upper ridge slowly exits eastward into the weekend, allowing dry weather with mostly sunny skies to continue through Saturday.
(Now through the weekend) A pleasant springtime pattern and clear skies will setup in the wake of this last trough that will last through the weekend. Westerly to northwesterly flow will develop along the southern periphery of a rather large upper trough.
Expect cooler temperatures, gusty winds, and chances of showers. With this, warmer temperatures and dry conditions briefly set in today.
- Southwest winds of 20 to 30 mph will gust to 45 to 55 mph today, with the highest gusts expected south of US 6 - High temperatures will rise into the 50s and low 60s today, then plummet into the 20s overnight. Secondary, lessor wind max follows this evening as sharp cold front moves through and temps crash 30+ degrees. Enough lake based moistening within largely 330-350 flow trajectory to support some lake shsn response late tonight/Sat morning yet constrained with dry slot aloft pivoting through swrn flank of exiting, intense upper low. Flow backs later Sun ahead of broad, digging upper trough that develops through the srn Rockies Late Mon into Tue before ejecting out into the srn plains late Tue. Otherwise a strong low pressure system will move through the area today.
- Meteorological Overview: Upper level ridging will strengthen over the Northern Rockies today before persisting into the weekend.
/Issued 345 AM MST Fri Feb 28 2025/ - Meteorological Overview: Upper level ridging will strengthen over the Northern Rockies today before persisting into the weekend.
A dry cold front will increase winds, potentially causing Red Flag Warning criteria to be reached. Current observations continue to indicate little in the way of moisture recovery early this morning in the wake of yesterday's cold front. Saturday will bring the approach of a dry cold front which will sweep across the area during the afternoon.
We've been seeing mostly high-level clouds rotating around a cut-off low to the southwest, but otherwise quiet.
608 AM EST Fri Feb 28 2025 (Today and tonight) A cold front swept through the region earlier this morning. Daytime highs will be a skosh cooler Friday afternoon with many locations in the lower to middle 70s. High pressure over the northeastern Gulf will create a weak enough wind to allow a seabreeze to push inland this afternoon and allow temperatures to cool off a few degrees. Temperatures are forecast to tumble into the lower to middle 40s across region. A few of our cooler spots may see temperatures tumble into the upper 30s if skies remain crystal clear all night.
The prevailing airmass will remain sufficiently dry to allow for rapid cooling through the evening and overnight hours into the mid to upper 40s by daybreak Saturday, followed by another warm and mostly clear afternoon, as highs climb back into the low to mid 70s, with a few more sites taking aim at the upper 70s south and west.
Water vapor imagery highlights a broad belt of west- northwesterlies across the CONUS, culminating in a long wave trough pivoting east of the Eastern Seaboard. Surface analyses place a cold front over northern Florida although there is only about a 10 degree gradient in dewpoint north and south of the front. Temperatures range from 62 to 70 and dewpoints are in the lower 60s. At around 1130 PM last evening, the lowest radar beam detected the superstructure of the SS United States as it slithered west near Satan Shoal. The cold front over northern Florida will stall and lyse over South Florida today and tonight. High pressure in the Gulf of Mexico will maintain light to gentle northwest to north breezes across the Keys today through Saturday night.
635 AM EST Fri Feb 28 2025 (Today through Saturday) Models and sfc analyses depict broad high pressure dominating the SE CONUS, while a very long sfc boundary stretches from a storm system over the NW Atlantic, down to the central portions of the Florida peninsula and into the Gulf waters.
- High pressure brings dry and cooler conditions for the weekend.
(Today through Saturday) The most recent surface analysis indicated a cold front well south of the BRO CWFA.
626 AM EST Fri Feb 28 2025 Cooler and drier conditions will be in place today. A quick rebound in temperatures is expected on Saturday ahead of a dry cold front moving through Saturday night.
536 AM CST Fri Feb 28 2025 (Today through Saturday) The most recent surface analysis indicated a cold front well south of the BRO CWFA.
Localized gusts up to 65 mph are possible mainly in the south central, east of Highway 83, while the secondary cold frontal boundary passes through this morning. - 20 to 30 percent chance of brief light rain and snow showers along the cold frontal boundary this morning. Currently, the low pressure center from a clipper system is located over far southwestern Ontario. The first cold frontal boundary off this clipper has already passed through the forecast area. The secondary cold front, on the other hand, is now draped west to east over southern Manitoba and into southern Saskatchewan and is rapidly approaching northern North Dakota.
The ridge that has been over the Golden State is being displaced by an upper low pushing into southern California. The higher elevations are gusting into the warning levels early this morning. The probability of gusts above 45 mph is 40 to 70 percent for the highway level through late morning. A table of records and probability of exceedance (PoE) is below: Location Record Year Set PoE of Record Merced 80 2020 10% Madera 82 2020 1% Fresno 83 2020 1% Hanford 80 1924 20% Bakersfield 83 2020 15% On Saturday the upper low moves across southern California this brings a 10 to 20 probability of rainfall to the Kern County Mountains and Desert region. Temperatures will be seven to ten degrees warmer still for the region with increasing cloud cover and possibilities of showers.
410 AM EST Fri Feb 28 2025 Cooler and drier conditions will be in place today. A quick rebound in temperatures is expected on Saturday ahead of a dry cold front moving through Saturday night.
Localized gusts up to 65 mph are possible mainly in the south central, east of Highway 83, while the secondary cold frontal boundary passes through this morning. - 20 to 30 percent chance of brief light rain and snow showers along the cold frontal boundary this morning. Secondary cold frontal boundary has now entered northern North Dakota. Currently, the low pressure center from a clipper system is located over far southwestern Ontario. The first cold frontal boundary off this clipper has already passed through the forecast area. The secondary cold front, on the other hand, is now draped west to east over southern Manitoba and into southern Saskatchewan and is rapidly approaching northern North Dakota.
High pressure will support mild, dry and stable conditions into Saturday.
Expect cooler temperatures, gusty winds, and chances of showers. A weak upper low over central Arizona will exit to the east today, while a stronger low approaches the SOCAL coastline tonight. However, until the next upper low gets here Saturday night, we are actually under above normal hghts and we will see a pair of warmish days as a result. Some instability showers are likely over the higher terrain.
A dry frontal passage will occur tomorrow morning, bringing cooler temperatures and gusty winds. Discussion: Through this period, a trough will be dropping from central and eastern Canada to the Atlantic Coast, pushing a cold front through our area Saturday morning. An inversion around 900 mb should keep the winds isolated to the higher elevations tonight, but with the frontal passage in the 12-16Z time frame, winds aloft will mix down to the surface. High pressure will settle over the area Saturday night, with calm winds and clear skies allowing temperatures to drop into the 20s in most spots, and teens in the mountains and parts of SW VA.
Tonight and Saturday Afternoon satellite imagery shows clear skies across eastern Idaho this afternoon as high pressure remains in full control over our weather. Temperatures continue to run above seasonal norms with some 50s likely today across parts of the lower Snake Plain and Magic Valley with 40s elsewhere.
114 PM EST Fri Feb 28 2025 Dry weather is expected today as high pressure briefly builds across the region. A cold front will return rain, changing to snow, to the region tonight and Saturday. Light accumulations are possible, primarily in the higher terrain.
/96 (Now through Saturday) A pleasant springtime pattern and clear skies will setup in the wake of this last trough that will last through the weekend. Westerly to northwesterly flow will develop along the southern periphery of a rather large upper trough.
A cold front currently located from Lake Superior, across Iowa to NE Colorado will sweep to the SE tonight, and move across this area towards daybreak Saturday morning.
After frontal passage, northerly winds, clear skies, and maximized insolation will allow for near normal temperatures tomorrow with temperature maximums/minimums back in the lower 70s/low-to-mid 40s, respectively.
Mostly clear skies and mild temperatures will continue today and Saturday, driven by a persistent upper ridge over the northern Intermountain region.
Clouds are limited in the Upper Keys but visible on GOES-16 Satellite the Lower Keys will experience some lower ceiling broken cloud coverage for the next few hours. These winds are expected to continue on a downward trend into this evening as high pressure sits in the Gulf. From synopsis, a weak cold front will stall and disintegrate over South Florida today.
250 PM CST Fri Feb 28 2025 Updated at 245 PM CST Fri Feb 28 2025 - A dry cold front will move through the Mid-South on Saturday.
An upper level ridge will maintain warm and dry conditions over western Washington today and early Saturday.
(Now through Saturday night) Dry northwesterly flow aloft continues into the weekend with a bowling ball of low pressure rolling into the Desert SW. High pressure at the surface generally prevails, with nearly calm winds turning onshore. Of bigger concern in the short term period would be fairly strong indications for dense fog tonight across most of Deep South Texas and along the lower Texas coast.
An area of high pressure is expected to build in behind the front over the course of the short term, allowing for a continuation of the warm and sunny conditions through Saturday.
Low temperatures tonight will be mainly in the low 50s. This may actually decrease the sea fog threat around Galveston Bay with dew points falling into the low 50s, but dew points may remain elevated enough around Matagorda Bay for the sea fog threat to persist.
1047 AM CST Fri Feb 28 2025 As of 10 AM CST, calm and variable winds are starting to slowly gain a light southerly component as surface ridging begins to shift towards the Gulf Coast. The subsequent subsidence from this ridging will suppress cumulus cloud fields through the afternoon (some high cirrus clouds from the west can't be ruled out), allowing for insolation and afternoon temperature maximums in the lower 70s. The prevailing airmass will remain sufficiently dry to allow for rapid cooling through the evening and overnight hours into the mid to upper 40s by daybreak Saturday, followed by another warm and mostly clear afternoon, as highs climb back into the low to mid 70s, with a few more sites taking aim at the upper 70s south and west.
-IG /Issued 410 AM MST Fri Feb 28 2025/ - Meteorological Overview: Upper level ridging will strengthen over the Northern Rockies today before persisting into the weekend.
-IG /Issued 822 AM MST Fri Feb 28 2025/ - Meteorological Overview: Upper level ridging will strengthen over the Northern Rockies today before persisting into the weekend.
Localized gusts up to 65 mph are possible mainly in the south central, east of Highway 83, while the secondary cold frontal boundary passes through this morning. - 20 to 30 percent chance of brief light rain and snow showers along the cold frontal boundary this morning. Cold front continues to push across the state. UPDATE Secondary cold frontal boundary has now entered northern North Dakota. Currently, the low pressure center from a clipper system is located over far southwestern Ontario. The first cold frontal boundary off this clipper has already passed through the forecast area. The secondary cold front, on the other hand, is now draped west to east over southern Manitoba and into southern Saskatchewan and is rapidly approaching northern North Dakota.
1122 AM CST Fri Feb 28 2025 (Today through Saturday) The most recent surface analysis indicated a cold front well south of the BRO CWFA.
At this point the 5 PM expiration time seems reasonable for most of the wind headlines, and will continue to see a decrease in winds overnight as high pressure builds into the region.