Aikyam-Lab/Synoptic-Bench huggingface dataset:
WAA will move a warmer air mass in on the heels of the snow tonight, and temperatures will respond in kind tomorrow. Highs will be right around freezing, before a cold front moves through Saturday evening, ushering in a brief shot of CAA.
1158 AM CST Fri Jan 24 2025 Another sunny and beautiful day is shaping up today across the region, as sfc ridging will remain anchored from the TX Coastal Plains into SW LA through the afternoon, as it gradually shifts E into the Lower MS Valley this evening.
/KP/ Below normal temperatures will persist through the short term in the wake of a reinforcing cold front.
- Mild and breezy tonight ahead of a cold front for Saturday.
Tonight and Saturday Well, 24 hours ago we were seeing mixed signals from the high- resolution guidance on today's system and it's quite clear now that the drier solution scenario is winning out.
One positively tilted upper trough is moving through the Ozarks, with another approaching the northern Rockies. At the surface, the overall pattern is promoting high pressure over southeast Kansas, with a weak cold front moving into far western Nebraska. Overnight, the aforementioned cold front will bring a reinforcing shot of cooler air. However different from the last few shots of cold air, the associated upper trough will stay farther northeast over the Great Lakes. Weak upper ridging builds over the southern Plains as an upper low cuts off over the Southwest CONUS. Sustained troughing to our east will keep temperatures from getting too warm, but with downsloping westerly flow in the low levels, we should still reach the mid to upper 40s each day.
Dry conditions will also mean greater diurnal temperature swings with lows in the low 20s and highs in the 40s.
- Warmer today with increasing clouds and southwest winds.
A weak reinforcing cold front will push into the region tonight along with a dry, cold northwesterly flow aloft. High clouds streaming across SE GA will lift out tonight and limited column moisture will keep skies mostly clear thereafter with surface ridging gradually settles overhead. As afternoon breeziness settles with the relaxing gradients, temperatures will plummet once again to subfreezing levels after sunset.
At noon, visible satellite showed a band of mid-level clouds drifting east ahead of a H5 trough. Temps are expected to dip into the low-mid 20s for locations away from the beaches, but given a light/calm wind through the night, apparent temps should remain just above Cold Weather Advisory thresholds (20 degrees). Largely zonal flow is expected aloft, while high pressure is the primary feature at the surface.
This indicates a general decreasing of snow intensity, which is to be expected with gradually expanding surface ridging into the area causing general anticyclonic flow, and soundings showing drying air and increasingly shallow inversion heights. In the extended, the GFS and ECMWF show a closed 500 mb low in SW CA, a broad 500 mb trough across the ern 2/3 of the U. The trough digs further south 12z Tue as the closed low moves into the desert sw. with a ridge in the northern Rockies and the trough axis remaining over the ern U. Ridging then moves into the northern plains 12z Fri.
1222 PM EST Fri Jan 24 2025 High pressure will shift east today across portions of the Southeast and Mid-Atlantic, sliding offshore early this weekend. A weak cold front will pass through the region tonight, keeping temperatures below average for Saturday.
This will allow for high temperatures to rise up the the low 60s for most of the region with areas along the coast in the upper 50s. The low temperatures for tonight are expected to be in the 40s for the region, however a few places in the Northern Ranchlands could get into the upper 30s, meanwhile, places in the Lower Valley could get into the lower 50s. The warmer temperatures could be more likely if low-level clouds develop over the Lower Valley. Then, the high temperatures for Saturday are expected to be in the 70s.
Consecutive days with highs above freezing are forecast. An upper level wave will bring a cold front across the area later today. Before this, SW flow ahead of the front will increase winds and lead to warmer temperatures than yesterday.
A cold frontal passage has brought in cooler, drier air but cloud cover has slowed some temperature drops. High pressure moving through the region today will keep conditions dry and winds light.
But today we're taking a step backward as another dry cold front is almost all the way through Middle Tennessee. (Saturday Night through next Friday) Late this weekend, an inverted trough emanating from a Gulf of Mexico low will extend into the coastal states.
On top of that, temperatures are cooler than yesterday. Given that temperatures are in the low 50s currently with a draining flow off the mainland coupled with the cloud deck, felt it was unreasonable that temperatures would reach to near 60 degrees. Small Craft Advisories remain in effect for the waters west of the Channel 5 Bridge this afternoon and expecting Small Craft Advisory conditions to overspread the remaining eastern waters this evening. Moderate to occasional fresh northwest to north breezes early will give way to another surge of strong northerly winds through tonight and into Saturday, as high pressure builds over the Gulf Coast.
352 PM EST Fri Jan 24 2025 High pressure builds overhead through Saturday.
1008 AM EST Fri Jan 24 2025 Low clouds continue to remain in place across most of South Florida this morning out ahead of an approaching cold front. This gradual clearing trend will continue to take place this afternoon as the cold front slowly pushes through South Florida. (Today through Saturday) A transition from chilly cloudiness to drier, colder air over the next 24 hours as the next cold front moves across the area later today into tonight. This will allow for a slightly warmer maritime airmass to advect over the region and temps to reach the upper 60s to lower 70s across the East Coast and lower to mid 60s inland.
Stout longwave ridging that has been persistent across the Gulf of Alaska will slowly degrade and diminish in amplitude while Northwest flow remains across the northern plains through the weekend. The first is near out the area with the second round progged to mainly be an overnight tonight event with an additional few tenths possible behind a cold front tonight.
(This evening through Saturday night) A cold front is expected to move south through the Panhandles overnight.
1017 AM CST Fri Jan 24 2025 Updated at 415 AM CST Fri Jan 24 2025 - Warmer temperatures today and Saturday.
Some sun did peak out very briefly for the Lower Keys and Key West managed to jump to 63 degrees before clouds rushed back in and temperatures tumbled a couple degrees back down. As high pressure builds in behind this surge, winds will slightly veer to the north and northeast and freshen further. The Keys will remain socked in cloud tonight but drier air coming in with the high pressure should scour out clouds by morning.
For today, expect a quick moving cold front to push through the area this morning, with increasing cold advection with its passage. By this evening, the mid-level trough axis will swing through overhead, with increasing cold advection aloft. This tightening thermal gradient will lead to increasing FGEN aloft across western Nebraska, with snow increasing first near the Pine Ridge, spreading south with time. Highs only reach the 20s north of I-80, with highs in the lower 30s south of the Interstate Saturday afternoon.
1013 AM EST Fri Jan 24 2025 Temperatures will continue to warm today into the weekend as Arctic high pressure weakens.
241 PM CST Fri Jan 24 2025 Multiple low pressure systems across western CONUS will send a series of frontal boundaries into the southeastern states throughout the weekend the first of which is pushing south through the CWA today.
* Becoming warmer and breezy on Saturday; highs return well into the 70s on breezy southerly winds 10-20 mph gusting between 30-40 mph. With high pressure anchored over the region, dry conditions will continue through tonight. Increased warm air advection (WAA) on increased southerly winds 10-20 mph with gusts between 30-40 mph will allow for daytime high temperatures to climb into the 70s with a few spots, particularly west of IH-69C getting close to 80F degrees slightly warmer than normal levels).
The axis of the H5 trough will push east of the forecast area this evening, resulting in clearing sky. Highs on Saturday should reach the low 50s.
The warmer boundary layer coupled with the cold air advection aloft has destabilized the low-level lapse rates producing scattered snow showers. Even though surface temperatures have warmed well above freezing the cold 850mb temperatures will keep precipitation type as snow. Snow accumulations will be limited to mainly the higher terrain. For this afternoon/evening, cold air advection as thermal trough approaches will squeeze out available moisture. A few flurries and light snow showers possible today, mainly across the higher terrain. However, given the limited moisture and since even during the weak cold advection behind the wave the 850mb will flow be mainly from the west which is not ideal for orographic lift, little if any snow accumulation is expected with higher end amounts being perhaps a few tenths of an inch over some of the higher mountain peaks.
Visible satellite shows a band of mid-level clouds drifting east ahead of a H5 trough. Temps are expected to dip into the low-mid 20s for locations away from the beaches, but given a light/calm wind through the night, apparent temps should remain just above Cold Weather Advisory thresholds (20 degrees). Largely zonal flow is expected aloft, while high pressure is the primary feature at the surface.
1223 PM EST Fri Jan 24 2025 High pressure will gradually build east into the central Great Lakes and middle Ohio Valley today. The high will then move east of the area tonight.
1041 AM CST Fri Jan 24 2025 Another sunny and beautiful day is shaping up today across the region, as sfc ridging will remain anchored from the TX Coastal Plains into SW LA through the afternoon, as it gradually shifts E into the Lower MS Valley this evening.
Current readings, are now all above freezing, running about 5-10 degrees above temperatures this time yesterday. However, a breezy north wind on the edge of the arctic high pressure has kept wind chills in the 30s - stay warm! Temperatures will continue to warm under full sun, reaching the 50s across NE FL and mid/upper 40s across SE GA. pdf Area will be between low over Western Atlantic and high pressure building to the west this morning. The low to the east, will continue to move east through the day, taking the lingering clouds over NE FL with it. The center of the high pressure ridge will lay out across the southeastern US Tonight, yielding a clear and cold night.
1105 AM CST Fri Jan 24 2025 (Today through Saturday Night) After the cold front moved through the state on Thu. NW winds and drier/cooler air has moved back into the state. Temps early this Fri morning have dropped into the low teens to mid 20s across much of the area. These SRLY winds will bring increased moisture by Sat afternoon ahead of an approaching cold front. Moisture levels look to become high enough ahead of this approaching cold front to trigger some rainfall across portions of the area Sat night as the front drops SE into the state.
(Through Saturday) Behind a frontal passage today, high pressure will slide east from the southern Plains and be anchored in southern Georgia Saturday. Another frigid night is in store for the area with lows in the low to mid 20s. After highs in the 40s over what is left of the snow cover and resultant melting, refreezing into ice/black ice will occur with slippery spots on roadways and sidewalks. Mostly sunny conditions are expected Saturday with slightly warmer highs into the 50s (around 50 degrees SE AL/adjacent SW GA to upper 50s in the southeast Big Bend).
At the surface, a broad area of low pressure off the Central Florida coastline will rapidly pull northeastward tonight. With a clearing sky tonight and the winds decoupling for a period of time, this may allow for some patchy frost to develop overnight mainly over areas west of Lake Okeechobee where temperatures will approach the lower to mid 30 during this time frame. The rest of interior South Florida will drop into the lower to mid 40s, while the east coast metro areas drop into the upper 40s. When you factor in the wind, it will produce wind chill values in the lower to mid 30s across Southwest Florida with upper 30s to lower 40s elsewhere. As high pressure at the surface centered over the Southeast shifts eastward, this will allow for the winds to veer and become northeasterly as the day progresses.
(Rest of today and tonight) Gusty southwest winds under weak upper ridging will persist through sundown. Although we start out tonight with clear skies, temperatures overnight should be measurably warmer than last nights as breezy winds should stir the air diminishing the radiational cooling effect.
Shots of light snow will accompany each feature, although model trends paint the higher chances across northern locales along with only minor accums. WPC clusters continue to show a mix of potential outcomes in the upper level flow - mostly linked to timing/strength of an approaching ridge and exit/depth of a departing (or lingering) trough. The bulk of the EPS members drop in the stronger/quicker moving ridge bucket while the GEFS trends more toward lingering the trough. Overall, model trends continue to favor the higher chances across northern portions of the region, and again, only minimal accumulations.
For this afternoon/evening, cold air advection as thermal trough approaches will squeeze out available moisture. A few flurries and light snow showers possible today, mainly across the higher terrain. However, given the limited moisture and since even during the weak cold advection behind the wave the 850mb will flow be mainly from the west which is not ideal for orographic lift, little if any snow accumulation is expected with higher end amounts being perhaps a few tenths of an inch over some of the higher mountain peaks.
523 PM CST Fri Jan 24 2025 - Cold front Tonight bringing north winds and cooler temperatures Saturday.
After a bit of a lull, that is followed by westerly flow pure lake effect snow showers in the wake of the cold front-- from later in the day Saturday into Saturday night.
WEATHER PATTERN OVERVIEW: Broad upper level flow will continue and the brief clearing today is giving way to another surface cold front tonight. A Pacific Northwest ridge will nudge its way eastward enough to give northeast Montana above average temperatures by midweek, and no disturbances are expected to move through the area as well.
844 PM EST Fri Jan 24 2025 A weak cold front moves through the area today, bringing snow flurries to portions of the area. High pressure builds in over the region throughout the weekend with moderating temperatures and dry conditions expected.
High pressure rebuilds and persists into the middle of the upcoming week. A pattern change is on the horizon as a robust low pressure system moves into the region towards the latter part of next.
555 PM CST Fri Jan 24 2025 - Potential for light snow across western Nebraska this evening through tonight mainly from Hwy 61 westward and especially from the western sandhills toward the Pine Ridge.
924 PM EST Fri Jan 24 2025 High pressure will build east of the area overnight.
1000 PM EST Fri Jan 24 2025 Arctic high pressure will modify while extending across the Southeast through the weekend. At the surface, 1031 mb Arctic high pressure centered this evening along the cntl Gulf Coast will remain over the Southeast. At the sfc, high pressure will slide over central NC before moving offshore by Saturday evening. The airmass associated with this high will remain dry and chilly, with highs only reaching the lower to mid 40s Saturday afternoon.
502 PM CST Fri Jan 24 2025 (Remainder of today and tonight) There have been no significant changes to the forecast for the remainder of the afternoon since the update earlier this morning, with gusty WNW winds expected to diminish shortly before sunrise as a low-level ridge axis translates eastward into the TN Valley. With dewpoints predicted to be in the m-u teens and only a few/thin high-level clouds possible in an increasingly zonal flow regime aloft, we have indicated lows in the 15-20F range with some development of freezing fog possible in our normally fog-prone locations (particularly the larger valleys in northeast AL).
Mid lvl clouds kept things much warmer last night but that won't be the case tonight. As mentioned yesterday the trough quickly swings through tonight and we immediately go to zonal flow and no northwest flow.
Light snow accumuluations up to 1/2 inch, mainly across the higher terrain. 1 inch across the highest peaks. Light snow accumulations up to 1/2 inch expected across the higher elevations with 1 inch over the highest peaks.
633 PM EST Fri Jan 24 2025 (Through Saturday) Behind a frontal passage today, high pressure will slide east from the southern Plains and be anchored in southern Georgia Saturday. Another frigid night is in store for the area with lows in the low to mid 20s. After highs in the 40s over what is left of the snow cover and resultant melting, refreezing into ice/black ice will occur with slippery spots on roadways and sidewalks. Mostly sunny conditions are expected Saturday with slightly warmer highs into the 50s (around 50 degrees SE AL/adjacent SW GA to upper 50s in the southeast Big Bend).
940 PM EST Fri Jan 24 2025 High pressure will weaken as the air mass gradually modifies through the weekend.
Temperatures tonight into Saturday morning will be below freezing for up to 10-15 hours. But keeping in mind that should it occur, with temperatures as cold as they are, this would be defined as freezing fog. Highs on Saturday should reach the low 50s.
- Cloudy and cooler for the weekend. - Warmer for early and mid week. With high pressure centered off to our east, southerly winds are leading to decent warm air advection across the region. leaving the center of the country under a building ridge.
539 PM CST Fri Jan 24 2025 Multiple low pressure systems across western CONUS will send a series of frontal boundaries into the southeastern states throughout the weekend the first of which is pushing south through the CWA today.
613 PM CST Fri Jan 24 2025 - Cold front passes through the area tonight with low chances for snow in its wake.
322 PM CST Fri Jan 24 2025 - Cold front Tonight bringing north winds and cooler temperatures Saturday.
Consecutive days with highs above freezing are forecast.
The rest of the night will be dry with mostly clear conditions, except for some cloud cover holding on in the northern mountains with an upslope wind and 850 mb thermal trough in that area. Light snow accumuluations up to 1/2 inch, mainly across the higher terrain. 1 inch across the highest peaks. Light snow accumulations up to 1/2 inch expected across the higher elevations with 1 inch over the highest peaks.
This is due to a combination of blowing snow and brief heavy snow showers along and behind the cold front approaching ND from the northwest. This environment will move through ND into northwest MN along and behind the cold front. Stout longwave ridging that has been persistent across the Gulf of Alaska will slowly degrade and diminish in amplitude while Northwest flow remains across the northern plains through the weekend. The first is near out the area with the second round progged to mainly be an overnight tonight event with an additional few tenths possible behind a cold front tonight.
/EC/ Multiple low pressure systems across western CONUS will send a series of frontal boundaries into the southeastern states throughout the weekend the first of which is pushing south through the CWA today.
pdf Forecast on track as high pressure builds over the region and along with clear skies and diminishing winds which will provide for excellent radiational cooling conditions. Hard Freeze conditions are expected across all of inland SE GA with lows in the lower 20s and across inland NE FL to the West of JAX-GNV-OCF with lows in the middle 20s. A weak reinforcing cold front will push into the region tonight along with a dry, cold northwesterly flow aloft. High clouds streaming across SE GA will lift out tonight and limited column moisture will keep skies mostly clear thereafter with surface ridging gradually settles overhead. As afternoon breeziness settles with the relaxing gradients, temperatures will plummet once again to subfreezing levels after sunset.
318 PM CST Fri Jan 24 2025 - Cold front passes through the area tonight with low chances for snow in its wake.
910 PM EST Fri Jan 24 2025 High pressure builds overhead through Saturday.
A few cumulus clouds will persist through the afternoon generally east of I-65 as the trough axis is now moving into Central Alabama from the west. Otherwise, we'll have to get through another cold night tonight as high pressure moves into the area with very dry air remaining in the region. Lows will be in the upper 10s to the low 20s into tomorrow morning thanks to efficient radiational cooling. The high pressure center will shift to our east by tomorrow afternoon allowing for a more evident warm-up thanks to a light southerly breeze.
647 PM EST Fri Jan 24 2025 High pressure will weaken as the air mass gradually modifies through the weekend.
610 PM EST Fri Jan 24 2025 High pressure will build east of the area overnight.
600 PM EST Fri Jan 24 2025 High pressure builds overhead through Saturday.
742 PM EST Fri Jan 24 2025 High pressure will extend across the Southeast, while modifying, through the weekend. An area of high overcast clouds extends roughly from the US-1 corridor to the coast, while diurnal cumulus have resulted in partly to mostly cloudy skies west of the high clouds. The cloud cover is expected to dissipate this evening as the high slowly pushes east into Georgia through the night. At the sfc, high pressure will slide over central NC before moving offshore by Saturday evening. The airmass associated with this high will remain dry and chilly, with highs only reaching the lower to mid 40s Saturday afternoon.
911 PM CST Fri Jan 24 2025 - Cold front passes through the area tonight with low chances for snow in its wake.
Temperatures will warm fairly quickly - back above freezing by mid morning or so - and topping out in the lower 50s for most areas this afternoon.
The warming trend picks up steam today across Florida with high temperatures in many locations several degrees warmer than Friday's values. High temperatures will be in the low to mid 50s across Alabama and Georgia and in the mid to upper 50s across Florida counties.
1224 AM EST Sat Jan 25 2025 (Through Saturday) Behind a frontal passage today, high pressure will slide east from the southern Plains and be anchored in southern Georgia Saturday. Another frigid night is in store for the area with lows in the low to mid 20s. After highs in the 40s over what is left of the snow cover and resultant melting, refreezing into ice/black ice will occur with slippery spots on roadways and sidewalks. Mostly sunny conditions are expected Saturday with slightly warmer highs into the 50s (around 50 degrees SE AL/adjacent SW GA to upper 50s in the southeast Big Bend).
We are already seeing freezing temperatures along the Nature Coast under light winds and clear skies. These freezing temperatures will spread southward to Pasco County and a Freeze Warning remains in effect until 9 am. The upper level troughing that has been lingering over the eastern half of the U. Strong high pressure also sets up over the southeast U.
pdf High pressure will be centered just to the north this period. The position of the high will result in flow off the Atlantic Today. Highs Today will be in the lower to mid 50s across SE GA. Mid to upper 50s will be common over NE FL, except cooler at the coast due to flow across the relatively cooler Atlantic waters. For Tonight, temperatures will range from the upper 20s across SE GA, to the lower to mid 30s NE FL.