Aikyam-Lab/Synoptic-Bench huggingface dataset:
Temperatures this morning are in the low 20s to mid 30s, with northerly sfc winds & dangerously cold wind chills ongoing, generally below 25F & northern areas falling into single digits to teens the norm elsewhere. Daytime highs will only reach the upper 30s to low 40s southeast of the Natchez Trace (35-43F), while struggle to reach freezing to the northwest (25-34F). Although we will start to see a decrease in cloud cover later this afternoon, temperatures across parts of north MS, northeast LA, and southeast AR will not get above freezing today. Elsewhere, daytime temperatures will peak into the low/mid 40s.
305 PM EST Thu Feb 20 2025 High pressure builds into the region late tonight into tomorrow, remaining in control through the weekend. High pressure well west of the ares will begin to build over our region Friday. Temperatures will remain below normal with highs expected to reach the low/mid 30s most areas. An expansive area of high pressure will continue to move in from the west on Friday night, and remain in control through the weekend.
236 PM EST Thu Feb 20 2025 An area of low pressure shifts away from the area through tonight, with snow showers in northern Maryland through this evening. High pressure returns late in the week. A strong upper trough moving across the area this afternoon is producing scattered snow showers over north/northeast MD.
A somewhat split environment is observed along the Florida Keys this afternoon as cold front passes through our waters. Differences in northerly wind speeds have increased between the west and east side of our CWA from this morning with gentle to moderate breezes observed on the Reef near the Middle and Upper Keys while the Lower Keys and its surrounding waters are battered with fresh breezes. With a new cooler airmass also comes a brief stint of cooler lows as temperatures are expected to fall into the mid 60s tonight.
We will see more sunshine on Friday and slightly warm temperatures as high pressure slides toward the area.
224 PM CST Thu Feb 20 2025 - Cold again tonight and Friday before warming up above freezing this weekend.
Temperatures during the day on Thursday will struggle to approach the freezing mark across the far northwest. The northern counties in central Alabama may have a few areas that hover at or below freezing through the afternoon, while the rest of the area has a moderate to high chance of getting above freezing for a couple of hours at least. A few areas could see a flurry or two, but most of the wintry precip should be ending with the soundings showing increasing dry air at the low levels. Lows overnight tonight will be in the pre teens in the north to the lower 20s in the south. This will help start to transition warmer air into the state.
234 PM EST Thu Feb 20 2025 (This afternoon through Friday) High pressure and dry conditions will continue across the CWA through the short term period.
(This evening through Friday) Over the past few days, a cold front has moved through Florida and is now currently stationed just off the southern edge of the state. Low temperatures tonight are the main focus, as our northern counties are expected to dip into the low 30s, with the rest of the region in the mid 30s to the mid 40s. Highs over the weekend are expected to be in the high 60s and low 70s across the area, while lows range from the 40s in our northern portion and the 50s to the south.
Satellite imagery shows upper low has progressed southeast of the state, with weak wrap around moisture still impacting the southeast portions of East Idaho. NBM ensemble probabilities support most elevations rising to near or above freezing Friday.
Very light northerly winds will make it feel even cooler, with wind chills in the lower single digits (and a few subzero wind chills possible along the higher terrain).
(Through Friday) North to northeasterly flow from an arctic high will dominate our region as the high gradually moves east from the central US, bringing cold and dry conditions for tonight and tomorrow. The FL Big Bend and Panhandle follow a similar pattern, as wind chill temperatures reach the low 20s. Tomorrow, temperatures in the area will struggle to climb beyond the low 50s despite clear to partly sunny skies.
This will allow for slightly "warmer" high temperatures on Friday in the upper teens and 20s.
OVERVIEW: the upper level trough responsible for the spate of bitterly cold days is easing east, with the much talked about ridging/height rises creeping in from the west. The EPS and GEFS continue to have stark differences by mid week with the EPS continuing to hold onto a warmer solution with the GEFS steadfast with driving a colder trough back across the area. TEMPERATURES: the colder airmass is finally exiting east as we move into the weekend with milder, to above normal air pooling northward as broad ridging/height rises build in from the west. The highest confidence in developing ceilings is east of the Mississippi River, mainly towards central Wisconsin and generally 2- 3kft. Elsewhere, thinking that skies should be mostly clear overnight, but some models do suggest a further westward extent of the lower clouds.
300 PM EST Thu Feb 20 2025 Snow showers will taper off tonight as high pressure builds across the Upper Ohio Valley region. The high will then maintain dry weather through the weekend.
1114 AM CST Thu Feb 20 2025 -Temperatures will remain below freezing through Friday morning, with an Extreme Cold Warning for Thursday morning. With windchill temperatures this low, look for the Extreme Cold Warning to stay in place until noon this afternoon for all counties. Moving into late tonight into Friday morning, model agreement is still on track for an upper-level closed low to brush the northern portions of the Panhandles. While the placement of this low is not very indicative of active weather for the area, a few model do see a low chance (less than 10%) of some flurries across the Oklahoma Panhandle.
1202 PM CST Thu Feb 20 2025 (Today through Friday) High pressure continues northerly winds and CAA through the short term period as low pressure develops along the lower Texas coast and overrunning precipitation settles in. Temperatures across the ranchlands are nearing freezing, with wind chill values dropping across all of Deep South Texas.
North-northwesterly winds between 5-15 mph will keep afternoon wind chills brisk and in the single digits, perhaps warming up to 10-15 degrees along the Osage River valley and in the lower terrain of south- central Missouri. As the upper ridge builds across the central US, warm air is advected into the Ozarks, leaving the worst of the cold behind us as temperatures warm through the weekend. Highs on Friday will be in the low 30s south of the plateau, and in the mid- to upper 20s elsewhere.
812 PM EST Thu Feb 20 2025 Snow showers will taper off tonight as high pressure builds across the Upper Ohio Valley region. The high will then maintain dry weather through the weekend.
Warmer and drier weather will continue through Friday. A transient ridge has tilted over the area today and has helped to create slightly warmer conditions this afternoon with highs in the low 60s across most interior valleys. High pressure will likely allow for a shallow and inconsistent marine layer to form at the coast overnight, keeping conditions cool and moist.
with a short wave ridge extending from the Dakotas northeast into northwest Ontario. Just upstream of that is another short wave trough/PV anomaly which is evident in water vapor imagery but moving into drier air this feature has little impact. This dry air coming around the ridge and advecting across Lake Superior has thinned the cloud cover out over western Upper Michigan early this afternoon. As this ridge axis moves east of the Upper Peninsula on Friday. Pattern Forecast: Broad long wave troughing in place across North America with several short wave troughs moving through the pattern. Another short wave trough was spinning its way across the central Great Basin.
941 PM EST Thu Feb 20 2025 With the wintry precipitation out of the way, dry and much colder weather is expected through the weekend, as Canadian high pressure builds in from the west. This activity has kept temperatures down near or below freezing all day. Lows in the lower 20s. Highs in the low-to-mid 40s, some 15-20 degrees below normal for mid-late February. Arctic high pressure will be in control through the short term.
(This afternoon through Friday) High pressure and dry conditions will continue across the CWA through the short term period.
Cold air still over the plains but temperatures are several degrees warmer than this time yesterday.
925 PM EST Thu Feb 20 2025 - Lingering Light Snow Tonight - Warmer With Several Chances For Rain/Snow Lake effect snow showers have diminished with generally just flurries remaining. We're in a bit of a transition period along the lakeshore as the trough exits the area and the wind shifts more to the northwest creating a longer fetch across the lake. - Warmer With Several Chances For Rain/Snow High pressure briefly moves in for Friday with dry conditions and highs in the upper 20s.
OVERVIEW: the upper level trough responsible for the spate of bitterly cold days is easing east, with the much talked about ridging/height rises creeping in from the west. The EPS and GEFS continue to have stark differences by mid week with the EPS continuing to hold onto a warmer solution with the GEFS steadfast with driving a colder trough back across the area. TEMPERATURES: the colder airmass is finally exiting east as we move into the weekend with milder, to above normal air pooling northward as broad ridging/height rises build in from the west.
414 PM EST Thu Feb 20 2025 Low pressure exits the region east of Nova Scotia tonight. High pressure builds toward the region Friday.
Northerly winds will continue across South Florida tonight as high pressure builds into the region. This will allow for cold air advection to take place resulting in cooler temperatures across the area along with dry conditions. Temperatures this afternoon should range from the low to mid 70s around the Lake region, and in the upper 70s to around 80 over the far southern peninsula. Drier and cooler air filters in tonight into Friday as strong high pressure to our north builds in. The pleasant weather will continue into Friday with mostly sunny skies and highs only reaching the low to mid 70s.
850 PM EST Thu Feb 20 2025 Snow showers will taper off tonight as high pressure builds across the Upper Ohio Valley region. The high will then maintain dry weather through the weekend.
Refreezing of any lingering moisture will be possible tonight, but the persistent wind should help counter this by expediting the drying process.
With the high shifting east tmrw into the weekend, a warmup ensues. High pressure will ridge overhead by midday tmrw. The high will lead to clear skies/light winds overnight, with some high clouds traversing in on its backside tmrw.
525 PM CST Thu Feb 20 2025 - Cold again tonight and Friday before warming up above freezing this weekend.
It appears lows in the single digits and a light northerly breeze will keep us in a deep freeze until tomorrow afternoon when most of Middle Tennessee finally gets above freezing again. We will see more sunshine on Friday and slightly warm temperatures as high pressure slides toward the area.
634 PM EST Thu Feb 20 2025 With the wintry precipitation out of the way, dry and much colder weather is expected through the weekend, as Canadian high pressure builds in from the west. This activity has kept temperatures down near or below freezing all day. Lows in the lower 20s. Highs in the low-to-mid 40s, some 15-20 degrees below normal for mid-late February. Arctic high pressure will be in control through the short term.
854 PM EST Thu Feb 20 2025 Low pressure exits the region east of Nova Scotia tonight. High pressure builds toward the region Friday.
857 PM EST Thu Feb 20 2025 Cold high pressure will build into the region through the start of the weekend.
Quieter conditions are in store for the Silver State into the weekend behind an eastward retreating low pressure system that brought mixed precipitation to the region mid-week. Thursday through Friday night The upper level trough and associated system that brought a mix of rain and snow to central and northern NV mid week continues to push eastward away from the area Thursday afternoon. Northerly flow aloft in upstream of the trough Thursday evening will give way to ridging building into the SW CONUS on Friday. This will help to begin a warming trend as highs in the low to mid 40s on Thursday will be slightly warmer Friday for the area with some locations seeing temperatures near 50 during the afternoon hours.
608 PM EST Thu Feb 20 2025 - Lingering Light Snow Tonight - Warmer With Several Chances For Rain/Snow - Lingering Light Snow Tonight Radar reflectivities are trending down across inland Michigan with lake effect snow still ongoing over southwest Michigan. We're in a bit of a transition period along the lakeshore as the trough exits the area and the wind shifts more to the northwest creating a longer fetch across the lake. - Warmer With Several Chances For Rain/Snow High pressure briefly moves in for Friday with dry conditions and highs in the upper 20s.
555 PM EST Thu Feb 20 2025 Cold high pressure will build into the region through the start of the weekend.
624 PM EST Thu Feb 20 2025 (Through Friday) North to northeasterly flow from an arctic high will dominate our region as the high gradually moves east from the central US, bringing cold and dry conditions for tonight and tomorrow. The FL Big Bend and Panhandle follow a similar pattern, as wind chill temperatures reach the low 20s. Tomorrow, temperatures in the area will struggle to climb beyond the low 50s despite clear to partly sunny skies.
413 PM MST Thu Feb 20 2025 - Much warmer temperatures heading through the weekend. Water vapor shows upper trof axis from the Upper Midwest through the Central Rockies, with upper ridge over the Northern Rockies. At the surface, ridge is over the far eastern Dakotas, with staunch pressure falls westward to the Rocky Mountain Front. Much warmer temperatures can be expected through the weekend with generally flat upper ridge building overhead and Arctic air continuing to shallow/erode. Many areas should reach or exceed freezing Friday, and continue to warm over the weekend.
High pressure is building in as cold, dry air advects across the region. Additionally, temperatures are expected to fall below freezing in our northernmost region of the Nature Coast, where a Freeze Warning is in effect. (This evening through Friday) Over the past few days, a cold front has moved through Florida and is now currently stationed just off the southern edge of the state. Low temperatures tonight are the main focus, as our northern counties are expected to dip into the low 30s, with the rest of the region in the mid 30s to the mid 40s. Highs over the weekend are expected to be in the high 60s and low 70s across the area, while lows range from the 40s in our northern portion and the 50s to the south.
107 PM PST Thu Feb 20 2025 * Dry weather will continue through the week with periods of gusty ridgetop winds. Freezing fog may redevelop tonight for the Martis Valley, which would reduce visibilities and make for icy/slick roads for the Friday AM commute.
753 PM EST Thu Feb 20 2025 An upper level low will track across Pennsylvania today, then a more zonal pattern will develop over the CONUS this weekend.
642 PM EST Thu Feb 20 2025 High pressure builds into the region late tonight into tomorrow, remaining in control through the weekend. High pressure well west of the ares will begin to build over our region Friday. Temperatures will remain below normal with highs expected to reach the low/mid 30s most areas. An expansive area of high pressure will continue to move in from the west on Friday night, and remain in control through the weekend.
Lingering clouds that were streaming southeast over the area earlier in the day at the base of the cyclonic flow around an upper low centered over the eastern Great Lakes has eroded as drier air overtakes the local area. Overnight lows Friday night in the mid to upper 20's interior to closer to freezing down across the I-65 corridor.
914 PM EST Thu Feb 20 2025 An area of low pressure shifts away from the area through tonight, with snow showers in northern Maryland through this evening. High pressure returns late in the week.
258 PM MST Thu Feb 20 2025 A dry weather system will pass through the 4-Corners region today and Friday, resulting in breezy to locally windy conditions across portions of SE California and the Lower Colorado River Valley.
Issued 914 PM CST Thu Feb 20 2025 The temperatures are not dropping very quickly this evening, but did not make major changes to the forecast low for tonight since winds should drop off as the strong high pressure ridge moves into MO. Northwest winds will weaken and become west tonight into Friday morning, as high pressure moves by to the south of the region. One more night of lows in the single digits below zero far west to single digits above zero east is expected, with highs in the lower to middle 20s on Friday.
Subsequently, wind chills are forecast to drop into the 0-5 degree range through most of the area with low temperatures in the lower teens.
1101 PM CST Thu Feb 20 2025 Temperatures were falling through the 20s with the exception of our far southeast last hour which was still around freezing. Refreezing of any lingering moisture will be possible tonight, but the persistent wind should help counter this by expediting the drying process.
331 AM EST Fri Feb 21 2025 High pressure builds Friday into the weekend.
Still expect wind chills to briefly drop to around 15 below zero along the Highway 36 corridor around sunrise.
Currently - Expansive high pressure over the eastern United States is responsible for fresh north to northeasterly breezes across the Keys this evening. This brisk flow continues to pump in cooler and drier conditions. Temperatures are falling slowly into the upper 60s in the Lower Keys. Dew points have slipped into the lower 60s. Stable post cold front conditions prevail and virtually no precipitation has been detected anywhere near the island chain. This high will drive fresh to strong north to northeasterly breezes across all Keys waters. (00Z TAFS) Stratus associated with a recent cold front will continue to generate MVFR ceilings at both island terminals through the night.
1213 AM EST Fri Feb 21 2025 Northerly winds will continue across South Florida tonight as high pressure builds into the region. This will allow for cold air advection to take place resulting in cooler temperatures across the area along with dry conditions. Temperatures this afternoon should range from the low to mid 70s around the Lake region, and in the upper 70s to around 80 over the far southern peninsula. Drier and cooler air filters in tonight into Friday as strong high pressure to our north builds in. The pleasant weather will continue into Friday with mostly sunny skies and highs only reaching the low to mid 70s.
300 AM EST Fri Feb 21 2025 Arctic high pressure will build in from the northwest through Saturday bringing cold temperatures across the region.
Highs today will rise above freezing across most locations with another cold night tonight. Today Currently early this morning, a very deep closed low is located to our northeast with impressive Arctic high pressure to our northwest. Throughout the day, some height rises are expected, along with weakening of the high pressure as it moves towards the area. This will make for a mostly sunny and slightly warmer day. Tonight Overnight, weak ridging moves over the area with the high pressure remaining nearly centered across the southeast.
326 AM EST Fri Feb 21 2025 Dry and cold weather will continue into the weekend as Canadian high pressure builds in from the west. Chilly temps will start the day with a Cold Weather Advisory in effect for wind chill values in the lower teens. Temps will reach above freezing by mid to late morning and will rise into the low to mid 40s, remaining well below normal. Gusty northwesterly winds will diminish through the day as gradient relaxes as low pressure moves farther off into the Atlantic and high pressure sprawls across the Southeast. Therefore temps will fall off quickly after sunset and will drop down to the low to mid 20s again. High pressure will move overhead Saturday and then offshore Saturday night. A coastal trough with possibly some low pressure along it will form offshore.
1037 PM EST Thu Feb 20 2025 High pressure builds into the region late tonight into tomorrow, remaining in control through the weekend. High pressure well west of the ares will begin to build over our region Friday. Temperatures will remain below normal with highs expected to reach the low/mid 30s most areas. An expansive area of high pressure will continue to move in from the west on Friday night, and remain in control through the weekend.
Mostly clear skies and calming winds under an upper ridge will allow radiational cooling tonight but also develop areas of valley fog and low stratus overnight and Friday morning. A Pacific trough will weaken as it moves inland through the larger scale upper ridge late Friday night through Saturday, but will still bring light rain and snow to the northern half of our CWA, with snow level near 5000 feet MSL.
(Today through Saturday) Robust high pressure over the Southeastern United States will keep a breezy northeast to east wind flow over South Florida. This pattern also favors a continuation of the dry and cooler weather over the region in the wake of the cold front yesterday.
Monitoring closely for freezing fog formation which will remain possible, but model soundings show decreasing moisture with height that supports the idea of fog holding off. Saturday will move above freezing.
1214 AM EST Fri Feb 21 2025 Lingering snow showers and flurries will end this morning as high pressure builds across the Upper Ohio Valley region. The high will then maintain dry weather through the weekend.
High pressure settles south of New England over the weekend providing mostly dry conditions south of the mountains.
228 AM EST Fri Feb 21 2025 - Warmer with a couple of chances for rain/snow - Warmer with a couple of chances for rain/snow Radar shows a few flurries falling over Allegan, Barry, and Kalamazoo counties. Warmer air is on the way. A large area of high pressure over the Missouri Valley will move east to the Ohio Valley this weekend. Southwest winds on the northwest side of the high will draw up warmer air into Lower MI this weekend.
Temperatures were falling through the 20s with the exception of our far southeast last hour which was still around freezing. Refreezing of any lingering moisture will be possible tonight, but the persistent wind should help counter this by expediting the drying process.
931 PM PST Thu Feb 20 2025 Warmer days will continue, with weak Santa Ana winds continuing into Friday along with a shallower marine layer, where patchy low clouds will be near the coast into Friday morning.
Northern and southern stream U/L flow not quite in-phase across the CONUS as the lead upstream disturbance in the northern stream will ride across the Ohio/Tennessee valley region on Saturday, but the S/W trough will not extend as far south as Florida.
137 AM EST Fri Feb 21 2025 With the wintry precipitation out of the way, dry and much colder weather is expected through the weekend, as Canadian high pressure builds in from the west. Forecast on track with Cold Weather Advisory to account for a very chilly morning with wind chills down in the lower teens most places. This activity has kept temperatures down near or below freezing all day. Lows in the lower 20s. Highs in the low-to-mid 40s, some 15-20 degrees below normal for mid-late February. Arctic high pressure will be in control through the short term. Even so, highs in the low to mid 40s are still approaching 20 degrees below climatology Saturday.