Aikyam-Lab/Synoptic-Bench huggingface dataset:
420 PM EST Tue Jan 4 2022 A high pressure ridge will be situated to our southeast tonight as a cold front approaches from the northwest. This will keep winds stirring on ridges and open terrain, and even make it difficult for some valleys to decouple. This will permit notable ridge/valley temperature differences. The milder early morning temperatures, either at the surface or just off the surface, will allow for a warmer morning compared to Tuesday. However, the aforementioned cold front will pass through during the afternoon and stifle further warming. Between the clouds and cold air advection, any ridge/valley temperature differences will be more subdued.
Water vapor shows upper trof crossing the Northern Plains with strong west/northwest jet extending back through the Pac NW.
Westerly winds will decouple after sundown, go light/variable, then veer Wednesday as a weak cold front slides through the area. (This afternoon through Wednesday night) An upper level trough is over the Northern and Central Plains with the base of the trough over West Texas and Southeast New Mexico. A broad upper trough will be over most of the country on Wednesday and a cold front will begin moving into West Texas and Southeast New Mexico.
502 PM MST Tue Jan 4 2022 Winds have diminished and will continue to do so this evening, so have allowed the High Wind Warning and Wind Advisory to expire. Water vapor shows upper trof crossing the Northern Plains with strong west/northwest jet extending back through the Pac NW.
However, as the low moves into Minnesota tonight, the surface pressure gradient will tighten across eastern North Dakota into the Red River Valley region.
A light to moderate onshore flow will persist at the aerodromes through the next 24 hours courtesy of high pressure. In the meantime, across Deep South Texas, fairly zonal flow at 500 mb will continue while high pressure at the surface moves eastward. Overnight low temperatures will fall into the upper 50s in the Lower Valley to the upper 40s across portions of the Brush Country. Tomorrow, temperatures will be even warmer than they were today, with highs generally in the 80s with light wind and plenty of sunshine across the CWA.
544 PM CST Tue Jan 4 2022 A cold front will move through the area tonight, shifting winds to a westerly direction and filtering in much colder air.
120 PM PST Tue Jan 4 2022 After one more cool night, fair and warmer weather is in store for the next couple of days as a ridge drifts over the State, coaxing temperatures back above average.
Behind this trof, at the sfc winds will continue to shift toward being more northerly. A cold front will drop south tonight and usher in a wave of colder air that will bring our lows down into the single digits most places overnight. This energy and trof are expected to bring precip in the form of snow to the area tomorrow evening and overnight.
A cold front moves through the area tonight, shifting winds to a westerly direction and filtering in much colder air.
Sea fog should not be a concern yet with dpts in the lower to mid 50s and water temps generally still in the 60s - though some shallower water areas have dropped into the 50s. High temperatures tomorrow will warm into the 70s to around 80 as ridging at 850mb builds in and temps increase to 12-15C.
The low-level onshore flow will swing around to the south/south-southwest late in the night.
Forecast Summary: A strong cold front will bring gusty winds tonight into Wednesday, and much colder air for the next couple of days.
A weak cold front will move through all TAF sites early Wednesday morning shifting light winds to the north to northeast. High temperatures will also be 10-20 degrees cooler tomorrow despite southerly winds, courtesy of the slightly cooler airmass progged to overspread the region tonight.
542 PM EST Tue Jan 4 2022 A high pressure ridge will be situated to our southeast tonight as a cold front approaches from the northwest. This will keep winds stirring on ridges and open terrain, and even make it difficult for some valleys to decouple. This will permit notable ridge/valley temperature differences. The milder early morning temperatures, either at the surface or just off the surface, will allow for a warmer morning compared to Tuesday. However, the aforementioned cold front will pass through during the afternoon and stifle further warming. Between the clouds and cold air advection, any ridge/valley temperature differences will be more subdued.
859 PM EST Tue Jan 4 2022 Rain and snow chance returns with a Wednesday cold front.
The better wind gusts will be along and north of the Crawley's ridge/Shawnee Hills area in southeast Missouri, southern Illinois, northwest Kentucky and southwest Indiana after sunset and diminishing before daybreak.
517 PM EST Tue Jan 4 2022 Rain and snow chance returns with a Wednesday cold front.
It will drag an attendant cold front behind it through our region tonight, serving only to veer winds from southerly to westerly.
/Issued 226 PM EST Tue Jan 4 2022/ High pressure and dry conditions are anticipated for the short term period of the forecast. At the surface, high pressure will hold through tomorrow, but then begin to shift offshore tomorrow night.
High pressure builds over the state and will keep winds light for tomorrow, with temperatures continuing to moderate. Winds and seas continue to diminish as high pressure builds over the state. Winds and seas will then remain light through the end of the week as high pressure remains across the waters.
558 PM CST Tue Jan 4 2022 For the 00Z TAFs, a cold front will continue moving southward through the Texas Panhandle this evening accompanied by north winds in its wake. Winds will become southerly late Wednesday morning into the afternoon hours as a surface trof of low pressure develops over eastern CO and eastern NM ahead of the next cold front which will impact the area late Wednesday night. Northwest flow today will be overtaken by a cold front tonight, followed by a second surge of much colder arctic air tomorrow night.
Development of upper-level ridging will allow temperatures to shift from below normal to above normal by the end of the work week.
Expect lows to range from the lower to mid 30s across the east and mid to lower 40s across the west. Areas across the northeast will have little no clouds so they will have the chance for radiational cooling, hence the lower 30s across these areas.
634 PM EST Tue Jan 4 2022 A weak coastal trough will bring clouds and shallow moisture back into the area late tonight and Wednesday.
Aside from minor tweaks to hourly temps, dew points and sky cover, the only change was to add patchy frost to the grids across the higher terrain of NE Georgia, mainly for awareness given how warm it has been recently. Frost should form mainly in well-sheltered areas, as surface winds are expected to stay up around 10 mph across the higher terrain overnight. High pressure and dry conditions are anticipated for the short term period of the forecast. At the surface, high pressure will hold through tomorrow, but then begin to shift offshore tomorrow night.
Even though the early morning commute period looks to be mostly okay, road/travel conditions will deteriorate significantly later this morning as the current above freezing temperatures (mid 30s) drop abruptly into the lower to mid 20s and snow quickly coats the ground.
Westerly winds will decouple after sundown, go light/variable, then veer Wednesday as a weak cold front slides through the area.
1147 PM EST Tue Jan 4 2022 Rain and snow chance returns with a Wednesday cold front.
322 AM EST Wed Jan 5 2022 Rain and snow chance returns north of Pittsburgh today with a cold front.
The coolest spots will be in the east where conditions will get close to freezing, but likely stay at or just a degree or two above. Expect lows to range from the lower to mid 30s across the east and mid to lower 40s across the west. Areas across the northeast will have little no clouds so they will have the chance for radiational cooling, hence the lower 30s across these areas.
935 PM CST Tue Jan 4 2022 High pressure continues to move eastward tonight and is currently located over the Carolina Coast. In addition, expect clouds to continue to increase across the area ahead of an approaching cold front. Cloud free portions of the Midsouth should make in into the low to mid 40s. It won't be quite as cold tonight although most of the area will dip below freezing. A dry cold front will move across the Midsouth tomorrow.
(Today and tonight) Initial cold front, currently pushing south of the I-44 corridor, will move into the Arklatx region by mid/late morning.
Shower coverage is anticipated to weaken overnight as the moisture push lessens and a warm front moves through the area. Generally MVFR/IFR conditions in low clouds with a rain/snow mix across the lower valleys and all snow in the mountains.
244 AM CST Wed Jan 5 2022 Northwest winds behind a strong cold front, will gust to 35 to 45 mph today.
Large scale upper pattern still dominated by very broad long-wave trough over the CONUS with strong westerlies extending well south into the deep South. Recent models now in better agreement on speed max dropping SE into the amplifying upper trough over the mid-South by Thurs albeit with a little slower timing than prev runs. As wave moves away, cold front will quickly push southeast into the state Thurs evening, possibly changing rain to snow before it ends over a decent chunk of north GA, though confidence is low that there will be any road impacts.
A weak cold front will move through all TAF sites early Wednesday morning shifting light winds to the north to northeast and lessening the LLWS. High temperatures will also be 10-20 degrees cooler tomorrow despite southerly winds, courtesy of the slightly cooler airmass progged to overspread the region tonight.
1008 PM MST Tue Jan 4 2022 Winds have diminished and will continue to do so this evening, so have allowed the High Wind Warning and Wind Advisory to expire. Water vapor shows upper trof crossing the Northern Plains with strong west/northwest jet extending back through the Pac NW.
Temperatures are as low as 66 at the WFO KEY office, to as high as 75 across the Upper Keys with winds coming off the warmer Atlantic-side waters. We lowered temperatures for portions of the Lower Keys, and raised rain chances for the Upper Keys.
(Today and tonight) Temperatures will be cooler today, following a morning cold frontal passage. The much advertised stronger cold front will arrive in the Big Country late tonight. An upper trough is currently deepening into the upper Midwest from the northern Plains. Associated cold front has pushed south into the Texas Panhandle and northern Oklahoma. In the wake of this frontal passage, temperatures will be cooler today, most notably in the Big Country and to a lesser extent in the southern part of our area. The second and stronger cold front will advance south into the Big Country late tonight.
Aside from minor tweaks to hourly temps, dew points and sky cover, the only change was to add patchy frost to the grids across the higher terrain of NE Georgia, mainly for awareness given how warm it has been recently. Frost should form mainly in well-sheltered areas, as surface winds are expected to stay up around 10 mph across the higher terrain overnight. /Issued 650 PM EST Tue Jan 4 2022/ High pressure and dry conditions are anticipated for the short term period of the forecast. At the surface, high pressure will hold through tomorrow, but then begin to shift offshore tomorrow night.
147 AM EST Wed Jan 5 2022 A weak coastal trough will bring clouds and shallow moisture back into the area through midday then give way to mostly clear skies.
Did allow the High Wind Warning across central South Dakota to expire, and wind chill headlines now dominate in that region. Can't rule out an isolated gust to 60 mph with the 20 mb pressure gradient and strong caa, especially west river, so let the high wind warning ride for now. Still expect snow to become more widespread this evening as caa rolls in and squeezes out all available moisture in the upper trough. This could be a bit on the high side using the given SLRs of 15:1. The push of arctic air behind the low will drop H85 temps into the negative 20s Celsius by Wednesday morning.
123 AM MST Wed Jan 5 2022 The High Wind Warning has been allowed to expire at 5 PM MST (6 PM CST). an arctic cold front backs into the area from northeast to southwest during the day with breezy to windy south winds ahead of it in the morning and breezy east to northeast winds in the afternoon behind it. There will be a large range in high temperatures with lower 20s in McCook and Norton to the lower 40s near Kit Carson, Colorado.
214 AM CST Wed Jan 5 2022 A weak cold front was pushing slowly south out of the northern Texas Panhandle early this morning with three-hourly surface pressure rises around 3 millibars per hour. Solutions were in good agreement that this weak front will edge through the entire area by shortly after daybreak leading to a slightly breezy and cooler day. Temperatures will be around 8 degrees cooler in the southwestern South Plains, 15 degrees central South Plains, and around 25 degrees cooler in the northern Rolling Plains where the cold air will be deepest. Tonight will be mostly clear and relatively cold though latest guidance has modified temperatures slightly upwards, perhaps in response to the low level westerly flow.
855 PM PST Tue Jan 4 2022 After one more cool night, fair and warmer weather is in store for the next couple of days as a ridge aloft drifts over the state.
/issued 935 PM CST Tue Jan 4 2022/ High pressure continues to move eastward tonight and is currently located over the Carolina Coast. In addition, expect clouds to continue to increase across the area ahead of an approaching cold front. Cloud free portions of the Midsouth should make in into the low to mid 40s. It won't be quite as cold tonight although most of the area will dip below freezing. A dry cold front will move across the Midsouth tomorrow.
324 AM EST Wed Jan 5 2022 Rain and snow chance returns north of Pittsburgh today with a cold front.
A dry cold front will drop into the area and bring a wind shift at GLH around 15Z followed by GWO around 16Z and the remainder of the TAF sites during the aftn. The coolest spots will be in the east where conditions will get close to freezing, but likely stay at or just a degree or two above. Expect lows to range from the lower to mid 30s across the east and mid to lower 40s across the west. Areas across the northeast will have little no clouds so they will have the chance for radiational cooling, hence the lower 30s across these areas.
(The rest of tonight) A cold front will move across the area later tonight into Wednesday morning shifting the winds to the north.
148 AM EST Wed Jan 5 2022 Relatively low amplitude U/L pattern across the CONUS with a mean trough over the eastern U.
The cold front has moved through the area this morning as temperatures drop and the winds increase. Winds are expected to lax through the day yet stay strong enough with a cooler airmass tonight to lead to wind chill adv level chills tonight into most of the morning on Thursday.
Arctic high pressure building in this morning has kept a persistent tight pressure gradient across the area, helping northwest winds stay gusty through the night so far. Winds will slowly diminish through the day as the high pressure becomes more centered over the region and the pressure gradient slowly relaxes in the wake of the exiting low.
Some of this moisture may overrun the front by sunrise in the far north and result in possible freezing rain/ice pellets in the far northwest (Marion, Lamar and Winston counties) before the temperatures can rise above freezing. At this time, it appears that temperatures will be above freezing Thursday afternoon for the entire area, so we should just see a cold rain through the rest of the day. An advisory may need to be issued for the northwest this afternoon for freezing rain.
(Today and tonight) Temperatures will be cooler today, following a morning cold frontal passage. The much advertised stronger cold front will arrive in the Big Country late tonight. An upper trough is currently deepening into the upper Midwest from the northern Plains. Associated cold front has pushed south into the Texas Panhandle and northern Oklahoma. In the wake of this frontal passage, temperatures will be cooler today, most notably in the Big Country and to a lesser extent in the southern part of our area. The second and stronger cold front will advance south into the Big Country late tonight. The strong cold front should reach the I-20 corridor by or shortly after 6 AM Thursday. Behind this front, temperatures will drop into the lower to mid 20s for lows.
Wind direction may change from southerly to northerly late in the period (primarily for AEX) as a cold front will be approaching near the end of the period.
304 AM CST Wed Jan 5 2022 Shallow cold air will continue to advect southward across the area today as a strong upper jet from the northern Rockies across the Midwest continues to amplify an upper trof across the Great Lakes. A secondary jet maxima upstream will help re-amplify the trof over the Upper Midwest late tonight/Thursday. Sub-zero wind chills will also affect the area late tonight into Thursday morning with the lowest readings around 15 below affecting central Kansas as well.
The trough over the Central Plains begins to dig further south towards Texas for Thursday. Otherwise, a nice warm day is expected with slightly more cloud cover and highs a couple of degrees warmer for Thursday in the mid 80s.
350 AM PST Wed Jan 5 2022 High pressure aloft near the West Coast and very weak offshore flow will bring warming for today and Thursday.
219 AM MST Wed Jan 5 2022 High pressure will remain the dominant feature across the Southwestern U.
958 AM EST Wed Jan 5 2022 Rain and snow chance returns north of Pittsburgh today with a cold front. Widespread snow is expected Thursday night with crossing low pressure.
511 AM CST Wed Jan 5 2022 Shallow cold air will continue to advect southward across the area today as a strong upper jet from the northern Rockies across the Midwest continues to amplify an upper trof across the Great Lakes. A secondary jet maxima upstream will help re-amplify the trof over the Upper Midwest late tonight/Thursday. Sub-zero wind chills will also affect the area late tonight into Thursday morning with the lowest readings around 15 below affecting central Kansas as well.
/issued 148 AM EST Wed Jan 5 2022/ Relatively low amplitude U/L pattern across the CONUS with a mean trough over the eastern U.
Most areas will remain dry today as dry Arctic high pressure builds south out of of the northern Plains.
This would bring the lowest visibilities into Fargo area.
Much colder air has begun to filter in creating the high temperatures for the day at around midnight.
So far SNOTEL data across the northern ranges is not too impressive with possibly 5-7 inches on the high end over the past 24 hour at 2 favored sites in this flow. Don't see much hope of meeting the warmer guidance numbers until the snowpack decreases some.
/Today through Thursday/ Southerly low level flow has kept temperatures slightly warmer than what we have seen over the last few days tonight, with temperatures as of 09z ranging from the mid 30s to mid 40s across the region. A weak cold front will begin to enter the region from the northwest later this morning and moving through the region through the day before stalling out across our southern zones. A wide variety of temperatures are expected for today, with mid to upper 50s across our far northern zones, generally for areas north of I-30, while temperatures to the south of I-30 will make it into the lower to upper 60s. Temperatures will be noticeably cooler for Thursday with highs ranging from around 40 degrees across our north to the mid 50s across our southern zones.
546 AM CST Wed Jan 5 2022 (Today and tonight) Temperatures will be cooler today, following a morning cold frontal passage. The much advertised stronger cold front will arrive in the Big Country late tonight. An upper trough is currently deepening into the upper Midwest from the northern Plains. Associated cold front has pushed south into the Texas Panhandle and northern Oklahoma. In the wake of this frontal passage, temperatures will be cooler today, most notably in the Big Country and to a lesser extent in the southern part of our area. The second and stronger cold front will advance south into the Big Country late tonight. The strong cold front should reach the I-20 corridor by or shortly after 6 AM Thursday. Behind this front, temperatures will drop into the lower to mid 20s for lows.
(Today and tonight) The cold front that moved through the area overnight will take the edge off of the temperatures today with high temperatures expected to be 15 to 20 degrees cooler than yesterday. But another shot of colder temperatures is on the way with the next cold front that will move through tonight as a mid- level through moves through the central and northern Plains. Although the primary trough axis will remain northeast of the Forecast area, some of the models show enough vorticity brushing across north central Oklahoma that we may see a little bit of light snow. Winds will be gusty behind the cold front, so wind chill values will drop to advisory criteria in the north and west toward sunrise as cold air continues to filter in.
532 AM CST Wed Jan 5 2022 The temperature forecast today leans on the RAP model which is cooler and places single digit highs above and below zero as far south as Custer county. A warm front will develop across wrn Nebraska Thursday and the models are suggesting the potential for light snow with the front.
A stronger low pressure system will approach the area late on Thursday and bring widespread rain and gusty winds back to Northwest California starting late Thursday evening. High pressure is then forecast to flatten as a trough and associated cold front approach the West Coast. Gusty winds are expected to accompany this trough, with some gusts flirting with advisory-level possible over interior ridges of Del Norte and Humboldt counties, in addition to exposed coastal headlands in Del Norte County.
Another strong cold front will move through the area early this morning.
Some flurries could linger in our south on Thursday morning before the upper trough axis crosses to the east of the CWA, and more flurries may make it into our northwest by late Thursday afternoon as a quickly moving piece of energy gives us a shot at light snow/flurries in our north for Thursday night, but should not amount to much.
Light northwesterly winds will shift from the northeast with the passage of a weak cold front around 16Z. Hennig (Today through Thursday afternoon) Current observations show a cold front has moved into the Texas Panhandle. Cold air behind this front will be lacking, but an amplifying ridge over the western U.
High pressure will remain the dominant feature across the Southwestern U.
841 AM EST Wed Jan 5 2022 Rain and snow chance returns north of Pittsburgh today with a cold front. Widespread snow is expected Thursday night with crossing low pressure.
524 AM CST Wed Jan 5 2022 (Today and tonight) Initial cold front, currently pushing south of the I-44 corridor, will move into the Arklatx region by mid/late morning.
311 AM CST Wed Jan 5 2022 The cold front has moved through the area this morning as temperatures drop and the winds increase. Winds are expected to lax through the day yet stay strong enough with a cooler airmass tonight to lead to wind chill adv level chills tonight into most of the morning on Thursday.
Tonight, a cold front moves through around midnight, which may bring cooler air that allows for fog development. DGS Chattanooga Airport, TN 52 32 40 18 35 / 0 10 80 10 0 Knoxville McGhee Tyson Airport, TN 48 30 40 15 31 / 0 0 80 30 0 Oak Ridge, TN 49 27 38 13 31 / 0 0 80 20 0 Tri Cities Airport, TN 46 27 40 13 26 / 0 0 80 80 0 TN.