Aikyam-Lab/Synoptic-Bench huggingface dataset:
225 PM EST Thu Jan 23 2025 Cold front tonight with light snow showers. Temperatures have warmed nicely across the area today under southwesterly flow out ahead of the approaching cold front and upper trough. Expecting light snow across the area as this front moves east through the area tonight, with generally less than an inch across the lowlands, with light accumulations possible across the mountains. Front should generally be to the east of the area Friday morning, but a few light upslope snow showers or flurries are expected to continue across the mountains through at least late morning/early afternoon as high pressure gradually starts to nudge in from the west. Temperatures on Friday will be colder than today behind the front, generally only topping out in the 20s across the lowlands, teens higher terrain.
/10 (Now through Friday) A look at the geo-potential height fields this morning at 12Z shows a positive tilt upper trof axis positioned from the Upper Midwest to east of the Four Corners of the Desert Southwest. Ahead of the trof, a scattering of high based cirrus was streaming eastward over the Gulf coast. At the surface, the eastern nose of a strong arctic high pressure system was positioned over the Gulf coast.
As such, have boosted PoPs towards the 50% to 70% range, with the highest chances in northern Wisconsin. for 00Z TAF Issuance VFR conditions are expected tonight into Friday as high pressure slides south/west of the region.
951 PM EST Thu Jan 23 2025 Arctic high pressure slowly weakens as the air mass gradually modifies through the weekend.
648 PM EST Thu Jan 23 2025 Arctic high pressure slowly weakens as the air mass gradually modifies through the weekend.
524 PM CST Thu Jan 23 2025 (Tonight through Friday night) Temperatures will be cold once again tonight, with lows near or around freezing across much of South Texas. It looks like there could be more sunshine tomorrow, which may result in slightly warmer temperatures.
545 PM CST Thu Jan 23 2025 A weak and mainly dry cold front will move through the Lower Mississippi Valley tonight. Temperatures on Friday will average about 10 degrees cooler in the middle 30s to lower 40s.
the upper trough that moved across the area this morning will continue to move southeast away from Colorado. Northerly flow will transition northwesterly overnight as upper ridging edges into western Colorado. Temperatures will fall into the single digits for the lower Arkansas River Vally through morning.
500 PM CST Thu Jan 23 2025 - Cooler again today with highs around 50. Hard freeze again tonight with lows in the low to mid 20s.
Daytime satellite imagery reveals the low clouds are beginning to diminish, especially on the western edge. A potent upper jet will provide lift along the trough axis for light snow, starting late this evening in the northwest and quickly expanding through the forecast area overnight. Although the initial push of snow and subsequent highest probabilities come tonight through Friday morning with a swath of warm air advection along and behind the trough, expect light snow to continue, although perhaps intermittently, through Friday night under the cyclonic flow aloft.
634 PM EST Thu Jan 23 2025 Temperatures will trend warmer through the weekend. With the passing of a fairly flat upper-level trough, flow will shift back out of the west overnight, allowing the main band of snow to drift north. This trough could enhance snowfall, but this band will have exited the region prior to snow picking up. Instead, the counties that will see the higher amounts were highlighted in the HWO. With the trough dropping in overnight, there will be another surge of colder air leading to lows in the single digits across the region.
333 PM CST Thu Jan 23 2025 - Cold tonight but warmer for Friday.
The typical cold spots may bottom out even lower with efficient radiational cooling as a high pressure ridge slides across southern WI. While warmer air aloft will start to spread into southern WI on Friday, it will take a while to see the difference in our temps. The associated warm air advection and added lift from the vorticity advection will likely give us just enough saturation in the low levels, coincident with the snow growth zone, to produce light and fluffy snow.
851 PM EST Thu Jan 23 2025 A slow improvement in cold temperatures today with highs in many locations warming back toward freezing. Temperatures will continue to warm Friday into the weekend as Arctic high pressure weakens.
626 PM EST Thu Jan 23 2025 Temperatures will trend warmer through the weekend. With the passing of a fairly flat upper-level trough, flow will shift back out of the west overnight, allowing the main band of snow to drift north. This trough could enhance snowfall, but this band will have exited the region prior to snow picking up. Instead, the counties that will see the higher amounts were highlighted in the HWO. With the trough dropping in overnight, there will be another surge of colder air leading to lows in the single digits across the region.
(Now through Friday night) A look at the geo-potential height fields this morning at 12Z shows a positive tilt upper trof axis positioned from the Upper Midwest to east of the Four Corners of the Desert Southwest. Ahead of the trof, a scattering of high based cirrus was streaming eastward over the Gulf coast. At the surface, the eastern nose of a strong arctic high pressure system was positioned over the Gulf coast.
The trough axis is off to our northwest and will swing through the Lower MS Valley tomorrow. High pressure builds in tonight with light northerly winds still in place. Temperatures will climb above freezing even faster tomorrow morning with highs in the mid 40s to lower 50s. High pressure will be directly centered over the area going into the evening but it will slowly slide northeast through the night. This will allow the ridge to wedge into the area from the northeast and usually very favorable for cold air drainage across the area.
959 PM EST Thu Jan 23 2025 Low pressure will move through the Great Lakes and Ohio Valley this evening, then high pressure will begin to build in on Friday. Behind the cold front, colder air will move in and result in overnight lows dipping into the single digits for most.
But, in this case, a dry cold front will be associated moving south- southwest over the region west of the Rockies.
(Tonight) A somewhat of a split flow upper pattern was in place across the greater North American domain, with more of a troughing east and ridging west setup in place.
725 PM EST Thu Jan 23 2025 - A cold front brings a brief return of arctic air with highs tomorrow around 20 degrees.
505 PM CST Thu Jan 23 2025 (Tonight through Friday night) - Hard freeze for many areas late tonight into Friday morning - Elevated fire weather conditions Friday afternoon across the Rio Grande Plains, southern Edwards Plateau, and Hill Country High pressure settles in behind the early morning cold front with clear skies and cool conditions forecast through the short term period.
702 PM EST Thu Jan 23 2025 (Rest of today through Friday) Model and sfc analyses data shows a strong trough/low complex moving across the NE CONUS, and sending a long associated sfc boundary towards the deep south and the Florida peninsula. Ensemble guidance and local models remain in fair agreement regarding the lowest temps expected Friday morning.
A cold air mass will move in, bringing some light rain to the southern half of the cwa and cooler temperatures this weekend. (This evening through Friday) Another beautiful afternoon and evening is in store as the ridge continues to hold on. By this time tomorrow, a positively tilted trough will move across the Bay Area, ushering in a significant change to the pattern. The 850 mb temperature are expected to drop to the 10th percentile for this time of year, or around the freezing mark.
633 PM EST Thu Jan 23 2025 Low pressure will move through the Great Lakes and Ohio Valley this evening, then high pressure will begin to build in on Friday. A cold front will push east through the middle Ohio Valley this evening as snow showers transition into flurries behind the front.
Visible satellite shows the snowpack quite nicely and temperatures across these areas have been slow to warm into the low 40s. Some guidance have trended warmer but may be too warm over the snow pack. Have lows falling into the low to mid 20s in these areas but less confidence of reaching from Tallahassee to Valdosta and points southeast. Mainly a reinforcement of northwest winds ahead of high pressure settling in for the weekend.
443 PM CST Thu Jan 23 2025 - Cold front moving through today brings colder air tonight and tomorrow.
The southwesterly winds will bring in with it some much warmer H85 temperatures in the 6 to 9 degrees C range. Afternoon temperatures should rise into the lower 50s across much of the area thanks to this. However, another cold front is expected Friday night. Temperatures look to be marginal at this time with the main timing for snow only being in the overnight hours as the NBM is still giving highs in the low to mid 40s for the western Panhandles on Wed and Thu.
554 PM CST Thu Jan 23 2025 Thursday night through next Thursday: Another cold night is in store as a reinforcing cold front passes through the area. With both a cold front and radiative cooling, overnight lows will be cold again as temps fall to the low/mid 20s. Cooler air will keep Friday's highs (ranging in the 40s) and lows (low/mid 20s) persistent. Sfc ridging is expected to build post-frontal passage, bringing a warming pattern to the CWA over the weekend. Despite the warming trend, afternoon (ranging from the upper 40s to the mid 50s) and overnight (increasing from the lower 20s to upper 30s/lower 40s) temps are expected to remain below seasonal averages.
947 PM EST Thu Jan 23 2025 Waves of low pressure will develop and track northeast and off the coast of the Carolinas through Friday.
602 PM EST Thu Jan 23 2025 - Lake Effect Winds Down Overnight - Temps Averaging Closer to Normal After Friday, Snow Showers and Windy at Times - Lake Effect Winds Down Overnight Northwest flow lake effect snow in the wake of this morning's cold front has been spreading farther inland due to slight backing of the low level flow and diurnal effects. Additional (localized) accumulations of 1 to 3" are expected tonight before the snow gradually diminishes overnight with arrival of sfc ridging. The other impact will be for temperature swings ahead and behind passing cold fronts.
As the MT upper trough approaches, it should bring a bit of moisture at 850mb, allowing for another round of light snow.
1156 PM EST Thu Jan 23 2025 - A cold front brings a brief return of arctic air with highs tomorrow around 20 degrees.
Main area of interest in the short term is the warm front and wave of low pressure that move into the western Dakotas later tonight and eventually push east across the CWA into the day Friday. Fairly mild air follows the warm front late tonight into Friday.
337 AM EST Fri Jan 24 2025 Temperatures will continue to warm today into the weekend as Arctic high pressure weakens.
Sunshine and colder temperatures have returned today following the passage of yesterday's cold front. Temperatures Friday and through the weekend will climb back into the low to mid 20s with upper 20s likely across western Minnesota.
Most locations are above the freezing mark with the coolest temperatures along the Tennessee River. A solid stratocumulus deck has moved over much of the Mid-South ahead of a cold front, as seen on GOES East Nighttime Microphysics RGB channel. With rather dry air through the lowest column, any snow that does fall will likely sublimate into very light snow or flurries. The rest of the forecast is on track with temperatures falling into the lower 20s by tomorrow morning in wake of the cold front. AC3 A weak and mainly dry cold front will move through the Lower Mississippi Valley tonight. Temperatures on Friday will average about 10 degrees cooler in the middle 30s to lower 40s.
As such, have boosted PoPs towards the 50% to 70% range, with the highest chances in northern Wisconsin. for 06Z TAF Issuance VFR/MVFR conditions are expected tonight into Friday as high pressure slides south/west of the region.
20z subjective surface analysis indicates a cold front extending from Pocahontas, to north of Little Rock, to near Mena. THe associated air mass will promote slightly cooler conditions on Friday than that of today. Southwesterly low level flow will quickly develop early Saturday, and will promote warmer temperatures on saturday.
Lows tonight will range from near zero up in Clare County to the lower teens above zero along the lakeshore. - Lake Effect Winds Down Overnight Northwest flow lake effect snow in the wake of this morning's cold front has been spreading farther inland due to slight backing of the low level flow and diurnal effects. Additional (localized) accumulations of 1 to 3" are expected tonight before the snow gradually diminishes overnight with arrival of sfc ridging. The other impact will be for temperature swings ahead and behind passing cold fronts.
High pressure will keep winds light and VFR conditions in place tomorrow at both sites.
232 AM CST Fri Jan 24 2025 - Warmer today with increasing clouds and southwest winds.
Latest satellite imagery continues to show a clearing trend from north to south as drier air advects in ahead of the high pressure system. With high pressure being the domiant weather influence over the Ohio Valley today, expect much drier conditions to persist through the day with mostly sunny skies.
- Much milder with warmer downslope southwest breezes Friday. - Another cold front Friday night will bring north winds and cooler temperatures again Saturday.
1000 PM CST Thu Jan 23 2025 (Tonight through Friday night) - Hard freeze for many areas late tonight into Friday morning - Elevated fire weather conditions Friday afternoon across the Rio Grande Plains, southern Edwards Plateau, and Hill Country High pressure settles in behind the early morning cold front with clear skies and cool conditions forecast through the short term period. Saturday morning lows will be near freezing, generally from around 30 to 38 degrees.
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.
100 AM EST Fri Jan 24 2025 Low pressure will move through the Great Lakes and Ohio Valley this evening, then high pressure will begin to build in on Friday.
The area of low pressure and frontal boundary that has been lingering over the area the past few days will gradually move eastward into the western Atlantic through the day. Interaction between this front moving into the western Atlantic and strong high pressure over the eastern seaboard will keep a continued predominant northerly wind flow over the region for the next few days. The upper level troughing that has been lingering over the eastern half of the U. High pressure also moves over the southeast U.
1112 PM CST Thu Jan 23 2025 - Cold tonight but warmer for Friday.
One feature of interest is an area of weak low-level fgen ahead of an approaching cold front on Sat, which could produce some flurries or light snow.
Surface analysis places an expansive area of high pressure, centered near Lousiana, with surface observations highlighting generally northerly gradient winds across the Keys and the adjacent nearshore and offshore coastal waters. Land-base platforms indicate quite a spread in current temperatures across the Island Chain, with lower 50s over much of the Upper Keys, mid 50s in the Middle Keys, and upper 50s in the Lower Keys. Small Craft Should Exercise Caution overnight across the marine zones, with northwest to north winds 15 to 20 knots, especially for the coastal waters in the vicinity of the Lower and Middle Keys. Another surge of strong northerly winds will arrive late Friday afternoon, continuing into Saturday, as high pressure builds over the Gulf Coast.
(Friday through Saturday) Upper-air pattern this morning shows troughing over our region that will continue to track to the east through the day today and into Saturday. Meanwhile, surface analysis shows a cold front starting to dissect our region from the north, currently sitting at the Louisiana/Arkansas border. Not as cold tonight, with lows ranging from the upper 20s across our eastern zones to the lower 30s across our western zones.
(Today) In wake of a dry cold front that will be passing through the region early this morning, a slightly cooler day will be on tap for region as northwesterly winds reinforce this cool/dry air mass.
334 AM 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.
1055 PM CST Thu Jan 23 2025 (Tonight) A somewhat of a split flow upper pattern was in place across the greater North American domain, with more of a troughing east and ridging west setup in place. A weak upper level system moving across eastern KS/OK will help to sharpen the trough across the eastern states late tonight into Saturday. This was after highs rising into the low/mid 40s, which was a first day above freezing since Jan 19th or almost 4 days.
957 PM CST Thu Jan 23 2025 - Cooler again today with highs around 50. Hard freeze again tonight with lows in the low to mid 20s.
Clouds will continue to increase tonight as an upper trough and cold front approach from the north.
All is on track concerning the reinfocing cold front that was described previously. The cold front is approaching northwest portions of the forecast area and is poised to move to move through overnight.
Meanwhile, the pressure gradient between low pressure moving further offshore of Florida and high pressure to our west should be light enough for winds to be generally light or calm throughout.
(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.
(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.
1235 AM EST Fri Jan 24 2025 (Rest of today through Friday) Model and sfc analyses data shows a strong trough/low complex moving across the NE CONUS, and sending a long associated sfc boundary towards the deep south and the Florida peninsula. Ensemble guidance and local models remain in fair agreement regarding the lowest temps expected Friday morning.
Confidence is medium to high for freezing temps to last a few hours across the Freeze Warning area, however a persistent cloud deck is leading to less confidence across the Coastal Bend. But if the clouds remain in place, lows overnight may end up being around 5-10 degrees warmer than anticipated. (Tonight through Friday night) Temperatures will be cold once again tonight, with lows near or around freezing across much of South Texas. It looks like there could be more sunshine tomorrow, which may result in slightly warmer temperatures.
Today's cold weather and northwest winds are occurring as high pressure moves into the area. Afternoon readings are holding in the lower to middle teens over snow covered areas (generally north of Highway 34) and the upper teens south. The high pressure ridge is expected to be centered over the Mississippi River around 3 AM tonight, and that will provide ideal conditions for radiational cooling. This is due to both good timing on the ridge axis/light winds and fresh snow cover. Southerly flow Friday will give way to westerly flow for Saturday, and though warm advection will not be as strong, the warmer air mass and lack of snow should allow for highs to reach the mid 30s north to near 40 south Saturday.
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.
1240 AM EST Fri Jan 24 2025 Arctic high pressure slowly weakens as the air mass gradually modifies through the weekend.
1150 PM EST Thu Jan 23 2025 Temperatures will trend warmer through the weekend. With the passing of a fairly flat upper-level trough, flow will shift back out of the west overnight, allowing the main band of snow to drift north. This trough could enhance snowfall, but this band will have exited the region prior to snow picking up. Instead, the counties that will see the higher amounts were highlighted in the HWO. With the trough dropping in overnight, there will be another surge of colder air leading to lows in the single digits across the region. Saturday will be mostly dry with surface ridging over the region.
These clouds should shift offshore late tonight, leading to cold temps as high pressure continues to filter into the region from the west. Sfc temps will also remain below freezing through daybreak, resulting in hazardous road conditions due to refrozen snow/slush that partially melted during the day. Friday: A H5 trough will ripple across the forecast area late Friday afternoon and evening. The approaching trough should provide the region with a band of thin mid-clouds. Based on the increase insolation and temperatures well above freezing, several hours of good melting conditions is expected Friday afternoon. Friday night: The axis of the H5 trough will push east of the forecast area Friday evening.
1012 PM CST Thu Jan 23 2025 Updated at 345 PM CST Thu Jan 23 2025 - Cold temperatures tonight, with warmer conditions returning for Friday and Saturday.
Did go slightly colder than the warmer biased NBM for tonight's MinT using the ADJMAV guidance. Our cold upper trough shifts eastward with weak upper ridging building in from the west. Under the weak ridge southwest winds will increase as the pressure gradient tightens with sustained winds at 20-25 mph across our southwest to 10-20 mph across the rest of our area. The NBM was slightly cooler biased for the highs so went a few degrees warmer using CONSMOS guidance for Friday afternoons MaxT. A trough in the main upper jet flow digging across the U. Great Lakes Region will further flatten our weak ridging and push a cold front across our area on Saturday.
- A brief warming trend for most areas Saturday before a cold front enters the region late Saturday afternoon through Saturday night. Friday, the trough departs and winds aloft become increasingly westerly.
636 AM EST Fri Jan 24 2025 (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.
This will keep highs a bit cooler across the north but will allow for some warming in the south due to the timing of the associated front.
551 AM EST Fri Jan 24 2025 - A cold front brings a brief return of arctic air with highs today around 20 degrees.