Aikyam-Lab/Synoptic-Bench huggingface dataset:
As of 0830z, temperatures still remain in the lower 40s across much of the area -- with a few upper 30s readings across southern middle Tennessee and northern Alabama. Despite the clear sky today, these winds will make it feel very chilly outside as highs will struggle to make it much above the lower 50s. Winds may become gusty in the afternoon between 20-30 MPH due to the tightening pressure gradient from a deepening around of low pressure to our north.
1255 AM EST Thu Nov 21 2024 The cold front moves offshore overnight.
1112 PM CST Wed Nov 20 2024 High pressure is building across the Lower MS Valley this evening along with a dry and cool airmass.
511 AM CST Thu Nov 21 2024 - Cooler than normal temperatures and breezy conditions are expected the next two days.
Much cooler and even drier high pressure will then build southeast across the region tonight through Friday night. High temperatures today will be around 10 degrees cooler than yesterday, mainly in the low to mid 60s across the entire area. Some patchy frost possible tonight along and north of the Highway 84 corridor. Even cooler on Friday and Friday night as the center of the high pressure moves closer to our area. Lows Friday night may fall to near the freezing mark over our northernmost counties, with mid to upper 30s all the way south to around the I-10 corridor. With the high pressure and very dry air building in, mostly clear skies and no precipitation expected through Friday night.
Updated at 241 AM CST Thu Nov 21 2024 - Chilly today and tonight, but not as cold tonight as last night, with warmer temperatures tomorrow.
With mostly clear skies, the high temperatures are expected to be mostly in the upper 70s. However some places in the Middle and Lower Valley could get into the lower 80s for highs today. Moving into tonight, the low temperatures are expected to be in the range of upper 40s to lower 50s for most of the region. Once again, parts of the Middle and Lower Valley continue to be the exception to the trend where the low temperatures could actually be in the mid 50s. The high temperatures for Friday are expected to be a bit warmer with most of the high temperatures in the lower 80s. The High Risk of Rip Currents is expected to expire by this evening and the Coastal Flood Advisory is set to expire by 6 AM this morning.
Dry and much warmer weather is in store the rest of this work week.
625 AM EST Thu Nov 21 2024 (Today through Friday) The first "cool" snap of the season for South Florida will begin as the work week comes to an end thanks to the cold front that passed through the region overnight. A deep layer of northerly winds behind this front will start to usher in a much drier and cooler airmass today, which originates from the backside of a deep mid-level trough covering much of the Eastern US. High temperatures won't feel too cool today, ranging from the low to mid 70s over the interior and SW FL, to the upper 70s in SE FL. Friday will be another mostly sunny day with breezy northerly winds, and high temperatures only climbing into the low 70s.
523 AM CST Thu Nov 21 2024 Updated at 520 AM CST Thu Nov 21 2024 - Near freezing temperatures tonight across portions of the far southwest Texas Panhandle and northern South Plains.
(Today through Friday Night) An upper low is expected to move southeast through the Great Lakes today and to the east coast tonight as an upper ridge moves into the Plains. The upper ridge spreads through the Plains Friday night. A cold front will move through Arkansas today and as high pressure moves into the state behind the front, gusty northwest winds will return. High pressure will continue over the area through Friday night. Expect lighter winds Friday with the high centered over the state. High temperatures today will be in the lower 50s to mid 60s and in the lower 50s to lower 60s Friday.
Max temperatures will trend another 4-6 degrees warmer this afternoon, reaching the mid/upper 50s along the Wasatch Front, and low/mid 60s across lower Washington County. Max temperatures will then trend another 2-4 degrees warmer Friday afternoon. Warm southerly flow aloft will be in place on Friday as high pressure will be shifting to our east and an impressive low will be rotating off the PNW coast. A PNW atmospheric river is currently ongoing across the PNW from northern California up through British Columbia thanks to an impressive cyclone off the PNW coast.
Skies have gradually been clearing out as drier and cooler air filters in across the Sunshine State. Meanwhile, an upper level trough pushes into the Northeast while upper level ridge builds behind it and into the region. High pressure builds over the next few days with gusty winds pushing behind front.
These overnight temperatures should run a couple of degrees warmer for to- morrow night.
357 AM MST Thu Nov 21 2024 - Dry and a little warmer today.
A mid level ridge will nose into the region during this short term period maintaining the dry and quiet weather pattern. Friday's highs will be about 5 degrees warmer with a slight increase in humidity due to the weak onshore flow.
543 AM CST Thu Nov 21 2024 (Today through Friday Night) An upper low is expected to move southeast through the Great Lakes today and to the east coast tonight as an upper ridge moves into the Plains. The upper ridge spreads through the Plains Friday night. A cold front will move through Arkansas today and as high pressure moves into the state behind the front, gusty northwest winds will return. High pressure will continue over the area through Friday night. Expect lighter winds Friday with the high centered over the state. High temperatures today will be in the lower 50s to mid 60s and in the lower 50s to lower 60s Friday.
Otherwise, dry conditions with highs ranging from the low 20s north to the upper 30s southwest are on tap today. These high temperatures are around 5 to 10 degrees below average for this time of year, while the lows are near to slightly below average. During the period from now through Friday, a ridge starts in place over the Highs Plains and will stretch eastward over the Central Plains. Upper low pressure off the Pacific will split into two individual circulations, which will do-si-do around each other. The parent low will then begin to reingest the second circulation, and momentum from this upper low dance will result in a third low pressure center splitting off, spiraling through the Rockies, and passing through south central Canada/North Dakota as a clipper system.
The large closed low over the Great Lakes will push eastward to the Atlantic Seaboard today and tonight, deepening and elongating along a southwest to northeast axis as it does so. Meanwhile, the vast upper level ridge over the Rockies will broaden somewhat but ultimately remain in place.
As alluded to in the previous discussion, expect upper level ridging to build across the Plains today, allowing the SPG to gradually weaken. Thus, only have highs rising into the low to mid 30s, the coldest occurring north of I-90 in areas of higher elevation. Upper level ridging amplifies across the central CONUS this weekend, keeping conditions dry and cool across our area.
327 AM MST Thu Nov 21 2024 - Low chance (20%) of freezing rain on Friday for locations west, northwest, and north of Billings.
NBM probabilities show the best potential for (briefly) reaching the freezing mark to be across the northern-tier counties.
404 AM CST Thu Nov 21 2024 Today through Friday night: The reinforcing dry cold front brought in a surge of colder air, leading to noticeable temperature drops last night and will continue over the coming days.
(Rest of Today) High pressure to our west is bringing in much drier air this morning with dew points down in the low 20s.
Currently - Fresh northwest to northerly breezes prevail across the Keys in wake of an earlier cold front passage. The coldest and driest air remains a bit off with all of South Florida remaining in the lower 70s with dew points near 70.
-A cold front will move through dry late this weekend. The forecast area remains on the far southwestern periphery of a large low pressure system centered over the northern Great Lakes region this morning.
Today is going to feel much colder as the next push of energy from the powerful upper level low sweeps across the southeast. So the winds plus afternoon highs only near 50 will yield a much cooler feel-like temperature.
646 AM EST Thu Nov 21 2024 (Today and tonight) A secondary cold front is pushing through the region early this morning and this front has been ushering in the stronger push of colder weather. Low temperatures will be much cooler and in the upper 30s across Alabama/Georgia counties and around 40 in our Florida counties.
A cold front continues to push southeast of Florida. The drier and cooler air will continue to filter into the region through the day with clear skies expected by this evening and overnight. A cold front continues to move southeast of Florida.
Issued by National Weather Service Jackson MS 1133 AM CST Thu Nov 21 2024 (Rest of Today) High pressure to our west is bringing in much drier air this morning with dew points down in the low 20s.
- Cooler than normal conditions will continue through Friday night.
(Rest of today through Friday) The first of two cold fronts has made its way across our region today, ushering in sunny skies and cooler conditions. High temperatures won't feel too cool today, ranging from the low to mid 70s over the interior and SW FL, to the upper 70s in SE FL. Friday will be another mostly sunny day with breezy northerly winds, and high temperatures only climbing into the low 70s. The second front will drop through the region tomorrow, ushering in even cooler temperatures for the weekend.
A Small Craft Advisory is in Effect for the Straits of Florida and Hawk Channel west of the Seven Mile Bridge, and Gulf waters including the Dry Tortugas. From synopsis, fresh northwest to northerly breezes will persist across mainly the western waters in the wake of a cold front. High pressure will then advance eastward through the Gulf Coast states this weekend resulting in winds relaxing and veering northeast to east northeasterly. MTH will see improving ceilings, though EYW will see fluctuating ceilings occasionally approaching MVFR levels as cold air advection over warmer Gulf waters continues to produce low level clouds.
A cold front continues to push southeast of Florida. Strong high pressure builds in from the northwest and will help filter in some drier and cooler air into the region with clear skies expected overnight. This high pressure will remain the dominant weather feature into the weekend. Mostly sunny skies, much cooler temperatures and lower humidity can be expected through the remainder of the week and into the weekend. Overnight lows tonight will dip into the low to mid 40's north to the mid 40's to mid 50's central, south and coastal.
- Cooler weather conditions will remain firmly in place through Friday. A dusting (less than half an inch) could occur along the northwest facing ridgelines in Gilmer, Fannin, Union and Towns Counties. Afternoon highs will languish in the lower 50s for most of north and central Georgia and overnight lows will dip into the 30s again.
Clouds from the lower pressure center still linger over the area tonight, mainly over northeastern South Dakota, but they will continue to move out through today giving way to mostly clear skies. High temperatures today will struggle to get above freezing where snow accumulated yesterday, and therefore will likely not be able to provide any significant melting of the snowpack. The highest chances for some patchy fog will be over the northeastern CWA, but may also develop over central South Dakota as well.
Issued by National Weather Service Norman OK 1038 AM CST Thu Nov 21 2024 (Today and tonight) Upper level ridging will deepen over the Rockies today with northwesterly flow aloft as the upper low over the Great Lakes swings into the Mid-Atlantic. A few areas will approach freezing or slightly below, especially across the far southwest Texas Panhandle and northern South Plains.
(Tonight) High pressure will reign supreme across eastern Oklahoma and western Arkansas tonight.
The warmer air off the Pacific is making its way into the region this morning, and snow levels will be on the rise today, pushing to between 6000-7500 feet MSL by this afternoon. Cold front Fri night thru Sat, bringing widespread rain/snow and MVFR to LIFR conditions at times.
Low pressure exiting to the south will drag additional vorticity and moisture across the region, which, with convergent flow at the surface, should be just enough to force off some lake effect convection (in the form of rain) later tonight and into tomorrow as winds turn more northerly. Primary p-type expected to be rain, but forecast thermal profiles aren't too far off from mixing with some snow across the higher terrain.
A weak frontal boundary arriving this evening will reinforce/maintain enough cold air advection for more chances of freezing temperatures further into southwest Arkansas. Short term guidance highlights a greater than 30 percent chance of freezing temperatures along I-30 east of Hope, AR and through Prescott, AR along with a portion of the Red River Valley east of Texarkana. By tomorrow night, northerly winds will completely wane before southerly winds return, allowing for yet another chance of freezing temperatures tomorrow night with temperature maximums across the area slightly below normal in the 60s.
1208 PM CST Thu Nov 21 2024 Hi res model guidance from this morning continues to show a closed low over the Ohio River Valley region. At the same time, a reinforcing cold front, located on the northern edge of our forecast area, will continue track south across central MS this morning. The combination of clear skies and daytime heating will help afternoon highs peak in the low 60s across the area. /CR/ Today through Friday night: The reinforcing dry cold front brought in a surge of colder air, leading to noticeable temperature drops last night and will continue over the coming days.
High pressure will continue to influence the area through the short term period with northwest flow aloft. Overnight lows into Friday morning should be a few degrees warmer than last night, mainly in the upper 30s to mid 40s. Light easterly to southeasterly wind Friday afternoon will lend itself to a slight uptick in afternoon highs from the low to upper 70s with some high clouds overhead.
(Tonight through Friday night) Beautiful weather will continue tonight through Friday night as high pressure continues. After overnight lows in the low to mid 40s, temperatures will warm slightly as onshore flow develops and slowly brings in warm air.
With the cloud cover being mostly the high cirrus, strong radiational cooling should take effect. Will it shift again? Different models have a closed low at 500mb and some have an open wave.
1126 AM CST Thu Nov 21 2024 Did a quick update this morning as temperatures are trending a bit warmer and drier. Otherwise, dry conditions will prevail today as a reinforcing cold front moves through the area. Still on track for a bit of a colder evening and overnight period, with temperatures falling to near freezing in some locations.
Issued by National Weather Service Birmingham AL 1144 AM CST Thu Nov 21 2024 (Today through Friday Night) An upper low is expected to move southeast through the Great Lakes today and to the east coast tonight as an upper ridge moves into the Plains. The upper ridge spreads through the Plains Friday night. A cold front will move through Arkansas today and as high pressure moves into the state behind the front, gusty northwest winds will return. High pressure will continue over the area through Friday night. Expect lighter winds Friday with the high centered over the state. High temperatures today will be in the lower 50s to mid 60s and in the lower 50s to lower 60s Friday.
124 PM MST Thu Nov 21 2024 - Ridging provides tranquil and warm conditions for most of western WY the next couple days.
The big question for the forecast tonight is will temperatures drop to or below freezing. This latest forecast has a few rural areas touching 32, but confidence in several hours at or below freezing is not there at this time.
Issued by National Weather Service Riverton WY 1005 AM MST Thu Nov 21 2024 - Dry and a little warmer today.
- Cooler weather will remain in place through the end of the week.
The return of low level southeasterly flow on Friday will result in a slightly warmer day and night, with highs ranging from the mid to upper 70s along the immediate coast to low to mid 80s further inland. Low temperatures Friday night will range from the low 50s across the Northern Ranchlands to around 60 degrees across the Rio Grande Valley due to the slight uptick in moisture content.
This is thanks to the recent cold front that passed through late last tonight. Unlike other cold front passages, we have seen a longer period of northwest to north winds. This has brought a good source of cold air advection, especially along the west coast of Florida and over mainly the Lower Keys and points west. In addition, daytime highs have been near steady in the mid 70s across the Lower and Middle Keys, while the Upper Keys, which saw more sunshine, got up into the upper 70s. Dewpoints have remain rather comfortable in the lower to mid 60s. The full effects of the cold front will be felt overnight as cold air advection will continue to filter into the region.
940 AM CST Thu Nov 21 2024 Did a quick update this morning as temperatures are trending a bit warmer and drier. Otherwise, dry conditions will prevail today as a reinforcing cold front moves through the area. Still on track for a bit of a colder evening and overnight period, with temperatures falling to near freezing in some locations.
(Through Friday) A re-enforcing cold front is moving through the southeast US and will pass through our area late tonight.
High temperatures today will be in the lower 60s over southeast Georgia and in the mid to upper 60s over northeast Florida.
Meanwhile, a ridge holds strong across the Rockies. Some cloud cover building into the northeastern portions of the area may keep lows a few degrees warmer.
Hi res model guidance from this morning continues to show a closed low over the Ohio River Valley region. At the same time, a reinforcing cold front, located on the northern edge of our forecast area, will continue track south across central MS this morning. The combination of clear skies and daytime heating will help afternoon highs peak in the low 60s across the area. /CR/ Today through Friday night: The reinforcing dry cold front brought in a surge of colder air, leading to noticeable temperature drops last night and will continue over the coming days.
Temperatures should largely stay above freezing to mitigate the threat of freezing drizzle.
A Freeze Warning remains in effect for portions of southwest Arkansas tonight as temperatures will near or drop below the freezing mark. A weak frontal boundary arriving this evening will reinforce/maintain enough cold air advection for more chances of freezing temperatures further into southwest Arkansas. Short term guidance highlights a greater than 30 percent chance of freezing temperatures along I-30 east of Hope, AR and through Prescott, AR along with a portion of the Red River Valley east of Texarkana. By tomorrow night, northerly winds will completely wane before southerly winds return, allowing for yet another chance of freezing temperatures tomorrow night with temperature maximums across the area slightly below normal in the 60s.
530 PM CST Thu Nov 21 2024 - Patchy freezing fog possible tonight and Friday night.
Winds will decouple and go calm overnight as the ridge axis moves over the forecast area. However with the pressure gradient so slack Friday night, the winds will again decouple over the region for longer than the night before, allowing the lows near DKR to fall into the upper 30s (NBM has a 25-45% chance of falling below 32 degrees in the county.
We have made some minor updates to the sky grids to account for the latest trends with the high based stratus moving in across the west. With the cloud cover being mostly the high cirrus, strong radiational cooling should take effect. Will it shift again? Different models have a closed low at 500mb and some have an open wave.
Key Message(s): - Strong winds over area lakes expected overnight - Freezing temperatures possible in the northern Midlands The VAD wind profile from KCAE shows 20 to 30 kt winds at 1 to 2 kft. Temperatures tonight will largely depend on how mixed the lower levels stay overnight. It's more likely than not that in our sheltered locations and typically cooler spots we will see temperatures briefly drop below freezing. Key Message(s): - Cooler Friday with breezy conditions possible into Friday night.
609 PM EST Thu Nov 21 2024 (Rest of today through Friday) The first of two cold fronts has made its way across our region today, ushering in sunny skies and cooler conditions. High temperatures won't feel too cool today, ranging from the low to mid 70s over the interior and SW FL, to the upper 70s in SE FL. Friday will be another mostly sunny day with breezy northerly winds, and high temperatures only climbing into the low 70s. The second front will drop through the region tomorrow, ushering in even cooler temperatures for the weekend.
Mid/upper level trough over the eastern U. will force a dry reinforcing cold front through the area tonight. This will continue to usher in drier and much cooler air into the area.
654 PM EST Thu Nov 21 2024 (Through Friday) A re-enforcing cold front is moving through the southeast US and will pass through our area late tonight.
Temperatures tonight will be in the low to mid 30s for several hours around sunrise, with temps climbing into the 40s by mid morning, and high temps in the low to mid 50s by the afternoon. Winds should pick up briefly Friday morning, though the pressure gradient will begin weakening as the low over the northeast continues to move east through the afternoon.
402 PM CST Thu Nov 21 2024 - Patchy freezing fog possible tonight and Friday night.
Warmer than normal, dry conditions will last through Friday.
Pacific moisture has been moving into this area due to an upper level low just off the Washington coast.
442 PM MST Thu Nov 21 2024 - Ridging provides tranquil and warm conditions for most of western WY the next couple days.
718 PM EST Thu Nov 21 2024 A cooler night is forecast tonight behind the cold front that moved through, with lows in the mid/upper 40s to lower/mid 50s along the coast and southern parts of the area.
454 PM CST Thu Nov 21 2024 (Tonight) High pressure will reign supreme across eastern Oklahoma and western Arkansas tonight.
525 PM CST Thu Nov 21 2024 (Tonight through Friday night) Beautiful weather will continue tonight through Friday night as high pressure continues. After overnight lows in the low to mid 40s, temperatures will warm slightly as onshore flow develops and slowly brings in warm air.
High pressure and dry conditions will continue across the CWA overnight. - Cooler weather conditions will remain firmly in place through Friday. A dusting (less than half an inch) could occur along the northwest facing ridgelines in Gilmer, Fannin, Union and Towns Counties. Afternoon highs will languish in the lower 50s for most of north and central Georgia and overnight lows will dip into the 30s again.
Deep mid level troughing will extend southward across the rest of the Eastern Seaboard and that will slide eastward heading into Saturday.
1227 AM EST Fri Nov 22 2024 (Rest of today through Friday) The first of two cold fronts has made its way across our region today, ushering in sunny skies and cooler conditions. High temperatures won't feel too cool today, ranging from the low to mid 70s over the interior and SW FL, to the upper 70s in SE FL. Friday will be another mostly sunny day with breezy northerly winds, and high temperatures only climbing into the low 70s. The second front will drop through the region tomorrow, ushering in even cooler temperatures for the weekend.