Aikyam-Lab/Synoptic-Bench huggingface dataset:
Early evening IR satellite and regional radar composite are showing a squall line approaching the western Florida Peninsula and central Gulf of Mexico associated with the next cold front. Conditions will then deteriorate ahead of an approaching cold front. Winds will increase late tonight ahead of approaching cold front that will move through the waters on Wednesday, with gusty northwest winds filling in behind the front.
(Tonight through Wednesday night) Key Message: - A Gale Warning is in effect for all the waters until late tonight - A Wind Advisory for the island is in effect today from 21Z-06Z Wednesday - A Freeze Watch is in effect for northern/western counties tomorrow morning A cold front moved through our CWA this morning with a cold air mass filtering in behind. Afternoon highs today will top out in the upper 60s to low 70s and will be a little cooler with highs in the mid 60s tomorrow as the cold air mass settles in. Overnight lows tonight range from the low 30s across portions of the northern Coastal Plains, Victoria Crossroads and the western Brush Country.
652 PM EST Tue Dec 10 2024 Several chances for light snow tonight and Wednesday as low pressure moves east of the region.
502 PM CST Tue Dec 10 2024 - A cold airmass will move through the area today and bring much cooler temperatures overnight tonight into Wednesday morning. - Below freezing temperatures are expected late tonight into Wednesday morning. Given the drier conditions and higher potential for radiational cooling given the lack of cloud cover, overnight lows are expected to plummet into the lower 20s to lower 30s.
530 PM CST Tue Dec 10 2024 (Rest of today through Wednesday) A cold front has been pushing through Middle TN this morning bringing showers and overcast skies to the entire area. This could allow for just enough instability to enhance showers over our far eastern counties early this afternoon, but the cold front will gradually push east and sweep colder drier air into the area pushing those showers off the Plateau by late afternoon. The upper trough axis will pass by on Wednesday, sweeping the last of the moisture off to our east. High temperatures will be several degrees cooler in the afternoon, then much cooler, in the 20s, Wednesday night.
939 PM EST Tue Dec 10 2024 Several chances for light snow tonight and Wednesday as low pressure moves east of the region.
In its wake, a much cooler airmass is being advected in from the north-northwest. As of 8pm, gusty winds have allowed temperatures across northwest Alabama to drop down into the low to mid 50s with upper 40s already being observed across portions of western Tennessee and northern Mississippi. Strong CAA through the night will drop temperatures down into the low to mid 30s.
537 PM CST Tue Dec 10 2024 (Tonight through Wednesday night) Key Message: - A Gale Warning is in effect for all the waters until late tonight - A Wind Advisory for the island is in effect today from 21Z-06Z Wednesday - A Freeze Watch is in effect for northern/western counties tomorrow morning A cold front moved through our CWA this morning with a cold air mass filtering in behind. Afternoon highs today will top out in the upper 60s to low 70s and will be a little cooler with highs in the mid 60s tomorrow as the cold air mass settles in. Overnight lows tonight range from the low 30s across portions of the northern Coastal Plains, Victoria Crossroads and the western Brush Country.
70H trough is expected to move across tonight and this should help scatter out any clouds that remain by morning.
Weak high pressure will briefly build into the region through Wednesday which will result in low impact weather.
Trough continues to shift through the Texas Panhandle into Oklahoma through today and tomorrow. We are currently situated on the back edge of the trough with northwesterly flow aloft. Satellite continues to show upper level clouds shifting through the region this afternoon on the back edge of the upper level trough moving through Texas and Oklahoma. Early on the snow will be mixing in with rain as temperatures in the early part of the evening remain at or above freezing. Precipitation chances help bring temperatures down, while little to no precipitation allows temperatures to reach into the lower 50s. The upper level trough axis was pulling away from western Kansas, and the pressure gradient will continue to weaken such that light westerly winds at 10 knots or less will prevail through the period.
1108 PM CST Tue Dec 10 2024 (This evening through Wednesday Night) A cooler and windy day across SE TX with low to mid clouds slowly eroding this afternoon. As a result, areas just north and northwest of the Houston metro area will wake up with patchy frost and temperatures near/below freezing. High pressure builds in by Wednesday, bringing mostly sunny skies, light to moderate northwest winds with highs mainly in the 60s.
Moist air continues to spread north into the area ahead of an approaching cold front leading to a few light showers/sprinkles over land with a few heavier showers over the northern coastal waters.
- Below freezing temperatures this morning. Given the drier conditions and higher potential for radiational cooling given the lack of cloud cover, overnight lows are expected to plummet into the lower 20s to lower 30s.
The cold front that passed through early this morning had made to southeast AL at 9 PM CST. Surface analysis revealed a 1029mb pressure ridge over west TX, and a 1035mb Arctic high pressure centered over central Alberta and Saskatchewan. While the surface cold front was well to our south and east, GOES water vapor imagery showed an upper level trough axis lifting into western AR. As mentioned in the afternoon discussion, a few flurries or light snow showers will be possible over west TN overnight, as temperatures cool into the 30s and the upper level trough amplifies.
1224 AM CST Wed Dec 11 2024 The cold front has cleared the forecast area, and a broken stratus deck along the frontal slope now trails across much of the area. As the front continues eastward through the night, the lower clouds will quickly erode. /DL/ Tonight through Wednesday: A cold front will move through the region this evening. Expect much cooler and drier conditions for the area on Wednesday as daytime temps only reach into the mid 50s.
1215 AM EST Wed Dec 11 2024 Several chances for light snow tonight and Wednesday as low pressure moves east of the region.
201 AM CST Wed Dec 11 2024 - Cooler temperatures today and tomorrow.
1033 PM CST Tue Dec 10 2024 (Tonight through Wednesday night) Key Message: - A Gale Warning is in effect for all the waters until late tonight - A Wind Advisory for the island is in effect today from 21Z-06Z Wednesday - A Freeze Watch is in effect for northern/western counties tomorrow morning A cold front moved through our CWA this morning with a cold air mass filtering in behind. Afternoon highs today will top out in the upper 60s to low 70s and will be a little cooler with highs in the mid 60s tomorrow as the cold air mass settles in. Overnight lows tonight range from the low 30s across portions of the northern Coastal Plains, Victoria Crossroads and the western Brush Country.
This event, driven by a strong pressure gradient between a trough in the high plains and high pressure in the Great Basin, will continue through much of the day on Wednesday.
Will probably happen again Wednesday night even as a weak upper level trough passes through.
1045 PM CST Tue Dec 10 2024 - A cold airmass will move through the area today and bring much cooler temperatures overnight tonight into Wednesday morning. - Below freezing temperatures are expected late tonight into Wednesday morning. Given the drier conditions and higher potential for radiational cooling given the lack of cloud cover, overnight lows are expected to plummet into the lower 20s to lower 30s.
1019 PM CST Tue Dec 10 2024 - Warmer weather returns as we close out the week with afternoon highs in the 50s and 60s.
- Warmer weather returns as we close out the week with afternoon highs in the 50s and 60s. (Today through Thursday night) As of early this morning, latest observations has seen a much stronger temperature drop than anticipated with latest projections expecting locations closer to the low 20s to teens by the time the sun rises. Beyond this cold plunge, warmer weather looks to return for today and Thursday as model agreement sees high pressure build under an upper-level ridge. With this ridge place, look for afternoon high temperatures to rise back into 50s this afternoon with some locations returning to the 60s by Thursday afternoon.
230 AM MST Wed Dec 11 2024 - Warmer today and continued dry.
346 AM MST Wed Dec 11 2024 KEY MESSAGES: - High pressure will remain through Thursday day, bringing stable conditions with stratus and local fog. The ridge of high pressure will continue to be the dominant feature today causing stable conditions. Mid to high level clouds will be streaming through the ridge which is hindering the development of fog and low stratus.
523 AM CST Wed Dec 11 2024 (Today) An upper level trough extending through the Mississippi Valley continues to move eastward today, bringing an upper level vort max into our area and subsequent low chances (20% or less) of precipitation this morning. Be sure to secure holiday decorations and other loose, outdoor items this morning! Near freezing temperatures should warm into the upper 40s to lower 50s this afternoon under sunny skies.
Warmer temperatures and increasing clouds are expected today ahead of a weak area of low pressure.
722 AM CST Wed Dec 11 2024 - Cooler temperatures today and tomorrow.
As this trough continues to shift east, pressure gradients will be tight across our CWA allowing for some northwesterly gradient winds with gusts around 20 mph later this afternoon. Quiet and dry conditions will continue later tonight as the trough axis pushes out of the southeast and tracks east towards the Carolinas with light and calm winds. Overnight lows will drop into the lower 30s/upper 20s which will lead into patchy/widespread frost potential across our forecast area.
(Now through Thursday night) A large upper trof sweeps across the eastern states today into this evening, leaving a fairly zonal flow pattern over the forecast area which prevails through Thursday night. A cold front will have exited east of the area by the beginning of the day, with much drier and cooler air flowing into the forecast area. Winds should become calm or nearly so over interior areas tonight, and with wet bulb values dropping below freezing and clear skies, this should favor late night frost development. Lows tonight range from around 30 well inland to the mid to upper 30s at the coast, then lows Thursday night typically range from the mid 30s inland to the lower 40s at the immediate coast.
Ridging should hold for Thursday as well, With the axis over the area, wind should be less than previous days.
Ahead of the front, conditions will be warm and mostly dry with south-southwest winds and temperatures climbing into the low to mid 80s. Behind the front, breezy northerly winds (sustained 15-20 mph gusting 25-30 mph) will start to usher in a notably cooler airmass. Temperatures tonight into Thursday morning will plummet into the low to mid 40s across Hendry and Glades counties, mid to upper 40s across Collier County, and mid to upper 50s over the East Coast metro. Thursday will be a breezy and cool day as temperatures only warm to the low to mid 70s across South Florida.
517 AM CST Wed Dec 11 2024 - Cooler temperatures today and tomorrow.
Moist air continues to spread north into the area ahead of an approaching cold front leading to a few light showers/sprinkles over land with a few heavier showers over the northern coastal waters. Behind the boundary high pressure will build in with breezy northwest to north winds ushering in much cooler drier air tonight and Thursday.
Based on the low-level wind field through midday and vertical mixing on forecast soundings, a few spots may briefly hit gusts of 35 mph. Fair weather is expected through Thursday as high pressure builds across the area with high temperatures in the lower 50s most areas, but some upper 40s for the typically cooler locations east and northeast of Birmingham.
- Below freezing temperatures this morning. Cold high pressure that has settled in over the Permian Basin this morning should shift southeastward to the Gulf Coast by this evening.
517 AM CST Wed Dec 11 2024 - Warmer weather returns as we close out the week with afternoon highs in the 50s and 60s. (Today through Thursday night) As of early this morning, latest observations has seen a much stronger temperature drop than anticipated with latest projections expecting locations closer to the low 20s to teens by the time the sun rises. Beyond this cold plunge, warmer weather looks to return for today and Thursday as model agreement sees high pressure build under an upper-level ridge. With this ridge place, look for afternoon high temperatures to rise back into 50s this afternoon with some locations returning to the 60s by Thursday afternoon.
518 AM CST Wed Dec 11 2024 - Below freezing temperatures this morning. Cold high pressure that has settled in over the Permian Basin this morning should shift southeastward to the Gulf Coast by this evening.
An upper level ridge moves into Montana on Thursday and pushes the front back east as a warm front. This will bring slightly warmer surface temperatures, but chances for snow will be next to nothing following the latest model precip data.
Consequently, patchy frost and near-to-subfreezing temperatures are possible this morning, particularly in low-lying areas and drainage basins across the northern portions of our forecast area. The previously issued Freeze Watch, which was in effect through early this morning has been cancelled, as freezing temperatures are expected to remain isolated and a widespread freeze is unlikely. Today, high pressure will continue to strengthen over the region, resulting in mostly sunny skies and light to moderate northwest winds. Another chilly night is anticipated tonight into Thursday morning, with overnight lows mainly ranging from the mid 30s to low 40s, with a low (10-30%) chance for below freezing temperatures. As a result, afternoon temperatures will warm slightly, with highs reaching the the low 70s across most of the CWA.
Mostly clear skies and light winds should allow temps in the 30s this morning to rebound into the low 60s this afternoon.
As the cold front moves through this morning, precip should quickly clear out of the area with clear skies on the backside. Winds at 10 to 20 mph, gusting up to 30mph, out of the W and NW will follow the cold front this afternoon.
Along with a more southerly forecast track of the trough, a narrow band of modest IVT values will accompany the system. 00" inches, with the higher totals north of I-80 and in the foothills.
(Today) An upper level trough extending through the Mississippi Valley continues to move eastward today, bringing an upper level vort max into our area and subsequent low chances (20% or less) of precipitation this morning. Be sure to secure holiday decorations and other loose, outdoor items this morning! Near freezing temperatures should warm into the upper 40s to lower 50s this afternoon under sunny skies.
A low pressure trough will bring a chance of showers late Thursday from the coast to the mountains, but rainfall will be light.
Cool to cold morning across southeast Arizona with a few locals near freezing in the areas of Pinal and Pima county that are under a Freeze Warning.
(Today through Thursday) Cold front has moved through and winds are bringing some much needed drier and cooler conditions. Then some freezing temps to the far north tonight while most of the area should remain above freezing but still cold.
High pressure through today with dry but cool conditions.
This weather system moves through on Thursday and brings moisture, desert winds, cooler air, and scattered light precipitation.
148 PM EST Wed Dec 11 2024 A strong upper-level trough and accompanying surface cold front will sweep across the region this afternoon.
pdf The main line of convection associated with pre-frontal troughing has now moved to the south and east of the forecast area. The front itself is now racing down the Florida Peninsula, with high pressure beginning to build across the region in its wake.
236 PM EST Wed Dec 11 2024 (This afternoon through Thursday) Cold front has moved into the Florida Peninsula. High pressure will build in from the west. All of the precip associated with the cold front has moved well east of the CWA this afternoon. Northwest winds will continue tomorrow, but speeds will be much less as a high pressure center moves directly overhead.
(Rest of today through Thursday) A cold front is currently en route to South Florida this afternoon and is expected to push through the area late this afternoon into the evening hours. Ahead of this front, conditions remain quite warm and muggy but much cooler and drier are should filter across the area behind it. Aside from reduced temperatures and humidity, breezy northerly winds (sustained 15-20 mph gusting 25-30 mph) will accompany the notably cooler airmass. Temperatures tonight into Thursday morning will plummet into the low to mid 40s across Hendry and Glades counties, mid to upper 40s across Collier County, and mid to upper 50s over the East Coast metro. Thursday will be a breezy and cool day as temperatures only warm to the low to mid 70s across South Florida.
- Below freezing temperatures this morning. (This evening through Thursday) With the cold airmass shifting toward the gulf this afternoon and evening, we will see slightly warmer temperatures overnight generally remaining in the lower 30s to near 40.
1129 AM CST Wed Dec 11 2024 (Today through Thursday) Cold front has moved through and winds are bringing some much needed drier and cooler conditions. Then some freezing temps to the far north tonight while most of the area should remain above freezing but still cold.
210 PM CST Wed Dec 11 2024 Tonight through next Wednesday: High pressure will settle over the region region tonight,following this afternoons gusty winds. Overnight low temperatures will drop into the the lower 30s to upper 20s leading to some light frost potential especially across the northern portions of the CWA.
1140 AM CST Wed Dec 11 2024 - Cooler temperatures today and tomorrow.
(Now through Thursday Night) In the wake of the earlier cold front, gusty northwesterly winds will persist throughout the afternoon as dewpoints crash into the 20s and 30s. Low temperatures should stay above freezing for locations south of the I-10 corridor.
High pressure at the surface will continue to build east into the forecast area today, as a longwave trough swings through the region. Conditions will remain quiet under mostly sunny skies, as highs warm into the low and middle 50s this afternoon. As this trough continues to shift east, pressure gradients will be tight across our CWA allowing for some northwesterly gradient winds with gusts around 20 mph later this afternoon. Quiet and dry conditions will continue later tonight as the trough axis pushes out of the southeast and tracks east towards the Carolinas with light and calm winds. Overnight lows will drop into the lower 30s/upper 20s which will lead into patchy/widespread frost potential across our forecast area.
208 PM EST Wed Dec 11 2024 Breezy behind a strong cold front for the rest of Wednesday.
(Tonight through Thursday night) Temperatures this morning were in the low to mid 30s across much of the region. Some locales likely saw the first freeze of the season but most stayed above the freezing line. The synoptic atmospheric pattern for the short term period features a strong mid-level low and a trough with South Texas on the lee side. At the surface, high pressure over Mexico that'll translate eastward towards the central Gulf over the next several days. Tomorrow will be warmer with afternoon highs rebounding to the low 70s.
(Tonight through Thursday night) A deep mid to upper level trough covers the eastern half of the country with northwesterly flow over Texas. A drier airmass has moved into the region behind yesterday's cold front. Low temperatures Thursday will be a couple of degrees warmer than this morning, but some spots will drop below freezing again. By Thursday morning the low level flow will be southeasterly and this will begin to return warmer, moister air to the region. Warming will be slow during the day Thursday and highs will only be two to three degrees warmer than today.
Otherwise, a few urban locales may stay just above freezing with overnight low temperatures ranging from the upper 20s to mid 30s. Meanwhile, flow aloft will transition to a more zonal pattern and allow for slightly warmer temperatures from the upper 50s to lower 60s on Thursday afternoon.
(This evening through Thursday) With the cold airmass shifting toward the gulf this afternoon and evening, we will see slightly warmer temperatures overnight generally remaining in the lower 30s to near 40.
230 PM CST Wed Dec 11 2024 - Hazardous wind chills between -30F and -40F, mainly along and north of the highway 200 corridor, will continue through Thursday morning.
It will be much cooler today, with persistent cold air advection. Abundant sunshine should help temperatures climb into the lower 50s near and west of the I-65 corridor, despite the cold air advection.
KEY MESSAGES: - Scattered snow showers/squalls tonight, more numerous in the ridges with upsloping - Much colder with single digit wind chills late tonight into Thursday - Windy in the ridges - Winter Weather Advisory across portions of the WV higher terrain ------------------------------------------------------------- Strong 500 mb height falls of 200 meters in progress as rapidly deepening cyclone moves up Hudson River Valley bound for Quebec tonight. 5" of snow even in the low lands but roads remained wet for most part. Expect that snowband to push to ridges with a few inches of snow by evening per winter weather advisory. Negatively tilted upper trough crosses area around 06z, and steep low level lapse rates with relatively high snow squall parameter values suggest snow showers and perhaps snow squalls during the night.
242 PM EST Wed Dec 11 2024 A deepening trough remains over the eastern half of the country this afternoon with an associated surface boundary currently moving over the Florida peninsula. For the rest of the afternoon and evening, expect northwest winds to increase as high pressure quickly starts to build in. Lows tomorrow morning are forecast to be right around freezing for parts of northern Levy County, with 30s and 40s elsewhere.
1000 AM MST Wed Dec 11 2024 - Warmer today and continued dry.
1125 AM CST Wed Dec 11 2024 - Warmer weather returns as we close out the week with afternoon highs in the 50s and 60s. (Today through Thursday night) As of early this morning, latest observations has seen a much stronger temperature drop than anticipated with latest projections expecting locations closer to the low 20s to teens by the time the sun rises. Beyond this cold plunge, warmer weather looks to return for today and Thursday as model agreement sees high pressure build under an upper-level ridge. With this ridge place, look for afternoon high temperatures to rise back into 50s this afternoon with some locations returning to the 60s by Thursday afternoon.
358 PM EST Wed Dec 11 2024 A cold front moves into the area this afternoon and evening, snow showers are expected, along with much cooler temperatures. A warming trend is expected going into the weekend, as an area of low pressure brings the next chance of rain. Regional radar shows the expansion and intensity of snow showers increasing in Indiana, ahead of and along a cold front moving in from the west. Surfaces may then melt the snow, increasing the potential for refreeze as cooler air moves in. While high pressure would typically bring quiet conditions, increasing clouds will be noticeable Thursday afternoon and early evening.
(Tonight) A couple more re-enforcing cold fronts move southeast late this afternoon and overnight across the area.