Aikyam-Lab/Synoptic-Bench huggingface dataset:
338 PM MST Tue Feb 23 2021 The cold front has crossed most of the state already, with varying changes to local wind fields across western and central WY. Upper level pattern remains from the northwest tonight and tomorrow as a midlevel trough drops southward across eastern ID into UT. Winds tonight will be lighter at the surface, so snowfall with this trough will be lower than today, generally 1 to 2 inches for the Tetons, Salts, and Wyomings.
Southerly winds and scattered high clouds are expected into the overnight hours across the CWA ahead of a weak cold front approaching the region. The cold front is expected to reach KBVO around 09z and exit KFSM mid to late morning Wednesday. A week ago the low temp at Tulsa was 13 below. As of 1 PM this afternoon, the temp is 80 degrees warmer, with a reading of 67 degrees. This has lead to much warmer temperatures.
906 PM EST Tue Feb 23 2021 High pressure will gradually build in from the southwest through Wednesday.
The low pressure system has moved away from the region.
345 PM CST Tue Feb 23 2021 Tonight through Tomorrow: High pressure over the region will continue to keep the weather relatively quiet in the overnight hours. east of I-55 and south of I-20, most likely to see the winds drop off to almost calm under the ridge, with clear skies. Milder overnight lows elsewhere will be in the low to mid 40s. Have gone on the warmer side of guidance. Southwesterly flow ahead of a weak low and cold front moving towards the northwest will set up for some rain chances late tomorrow afternoon and evening.
Quite a few of the high resolution models are showing this band from Minot to west of Devils Lake holding for another hour or two, then it begins to slowly sag southeast. So the highest totals should be around and to the south of Devils Lake through 4-5 pm, then not as much heading into the central Valley and west central Minnesota this evening.
600 PM CST Tue Feb 23 2021 After a sunny and very mild day Tuesday, expect increasing clouds and slightly cooler temperatures Wednesday as a weak cold front moves across the region. Meanwhile, off to our northwest, low pressure is analyzed over eastern South Dakota this afternoon. A trailing cold front will move across the region overnight into Wednesday morning while high pressure begins to build into the region from the west. Presuming cloudy skies and the cooler air mass behind the front, temperatures will somewhat tempered Wednesday, topping out in the upper 30s NW to lower 50s SE, while much of central Illinois is expected to top out in the 40s.
518 PM PST Tue Feb 23 2021 Scattered snow and graupel showers will persist into the evening before high pressure brings quieter weather to the Inland Northwest for Wednesday.
308 PM CST Tue Feb 23 2021 Radar returns have been mostly virga so far this afternoon, but Cambridge recently reported light rain which may be a sign the lower atmosphere is beginning to saturate. Low pressure will track east across southern Minnesota through late evening.
557 PM EST Tue Feb 23 2021 High pressure will gradually build in from the southwest through Wednesday.
605 PM EST Tue Feb 23 2021 Mild, Pacific high pressure will expand across the Southeast through Wednesday.
559 PM CST Tue Feb 23 2021 Radar returns have been mostly virga so far this afternoon, but Cambridge recently reported light rain which may be a sign the lower atmosphere is beginning to saturate. Low pressure will track east across southern Minnesota through late evening.
654 PM EST Tue Feb 23 2021 High pressure will build over the area through Wednesday.
A quick moving weather disturbance and cold front will bring light snow to portions of northeastern Nevada and eastern White Pine county Wednesday in addition to gusty north to northwest winds particularly across northern Nye county.
322 PM CST Tue Feb 23 2021 Plenty of sunshine and southwesterly winds have warmed temperatures across the area into the mid 60s and into the low 70s in northeastern MS. As we head into tomorrow a weak cold front approaches the the area and by mid morning we could see some showers across the area.
A cold front will arrive early this evening across central Kansas shifting winds to the north and ushering in more seasonable air. The rather quiet weather pattern will continue for the latter half of the week with cooler temperatures, though closer to seasonal climo. The associated cold front and modified Canadian-Pacific air will move south across Kansas dropping temperatures back some 20 degrees or so on Wednesday.
Next player will be the potential for some late morning through afternoon RA/SHRA development (might end up being very isolated coverage) ahead of and in association with the next cold front.
721 PM EST Tue Feb 23 2021 Weak high pressure over the state will drift east allowing winds to veer. This flow will remain light enough to allow the sea breeze to develop near the coast each afternoon helping to keep coastal locations several degrees cooler than inland. High pressure will build in over the eastern gulf waters through Wednesday with breezy northerly winds veering to east on Wednesday.
648 PM EST Tue Feb 23 2021 High pressure will build over the area through Wednesday.
With 850mb temperatures increasing beneath the ridge by +2C to +3C on Wednesday, expect max temperatures to be between +3F to +6F across the area. Increased afternoon max temperatures for Wednesday after accounting for today's max temperatures and the expected warmer temperatures on Wednesday afternoon. High pressure results in VFR conditions through the period with gusty winds from the W/WSW during the afternoon hours. Mid-level clouds arrive late in the period ahead of a cold front. BW Chattanooga Airport, TN 41 73 45 62 41 / 0 0 10 0 40 Knoxville McGhee Tyson Airport, TN 40 70 43 57 38 / 0 0 20 0 30 Oak Ridge, TN 39 70 42 58 36 / 0 0 20 0 30 Tri Cities Airport, TN 35 69 40 55 34 / 0 10 30 0 20.
1253 AM EST Wed Feb 24 2021 High pressure will build over the area through Wednesday. Therefore, kept with the previous forecast and ran local radiational cooling scheme, which has temperatures going slightly cooler than guidance. Have lows going into the mid to upper 30s overnight given the strong high pressure. Increased highs tomorrow into the low to mid 70s across the forecast area, favoring MOS consensus which has been consistent over the last several runs and performed pretty well for temps today so far. Low level jet Wednesday night will limit radiational cooling in the warmer airmass so kept lows mostly in the mid 40s. Thursday will be a bit cooler as a weak cold front moves into the area from the north and stalls which will lead to clouds developing as well as limit warm advection through the day.
/issued 721 PM EST Tue Feb 23 2021/ Weak high pressure over the state will drift east allowing winds to veer.
Surface winds will shift slightly to the southwest Wednesday night ahead of a weak cold front approaching the area from the northwest. With the dry airmass and clear skies allowing for efficient radiational cooling, low temperatures tonight will be below seasonal norms, ranging from 35 to 40s degrees, a bit warmer along the coast. Mild temps will return Wednesday night ahead of the front, with lows in the low to mid 50s.
Tonight Through Thursday High pressure over the southeast United States provided a southwest wind and very mild conditions today across Arkansas. A weak cold front will push through the region from the northwest on Wednesday. Slightly cooler temperatures will follow the front.
1241 AM CST Wed Feb 24 2021 (This evening through Wednesday) A surface cyclone has developed along the lee of the Rockies in the OK/TX Panhandle, allowing for southerly winds to overspread the area. This evening, the aforementioned cyclone will move towards the southeast and an attendant cold front will sweep through the area. The low temperatures tonight and the high temperatures tomorrow will remain near normal as the cooler airmass comes through.
Not too much cold air behind this low so high temps still expected to reach the upper 30s. Northwest winds will ensue as the low pulls away. Still expecting mild temps for Wednesday though clouds and a slightly cooler thermal profile will keep things more in the upper 30s to low 40s. A weak trough moves through Wednesday night but for now will go with a dry forecast.
A cold front will arrive early this evening across central Kansas shifting winds to the north and ushering in more seasonable air. The rather quiet weather pattern will continue for the latter half of the week with cooler temperatures, though closer to seasonal climo. The associated cold front and modified Canadian-Pacific air will move south across Kansas dropping temperatures back some 20 degrees or so on Wednesday. Meanwhile another upper trof will drop southeastward across the northern into the central Rockies into Wednesday night, before shearing eastward across the Plains on Thursday.
(Today and tonight) A weak cold front will move across West Central Texas this morning. Slightly cooler temperatures are forecast today, with highs in the low to mid 60s across the Big Country and the upper 60s to mid 70s elsewhere.
1052 PM CST Tue Feb 23 2021 A Pacific cold front entering northwest Nebraska this afternoon will sweep through wrn and ncntl Nebraska overnight.
Expect breezy and cooler conditions Wednesday into Thursday along with a slight chance of snow near the Four Corners. A second disturbance this weekend provide another round of windy and cooler weather along with a better chance of showers. Expect breezy conditions on Wednesday, with slightly cooler temperatures in most areas. Periods of windy conditions, cooler temperatures and a chance of showers are anticipated. The primary impact will be strengthening westerly winds ahead of the trough Wednesday afternoon with gusts in the 25-30 mph range. Winds will shift to a north to northeast direction Wednesday night into Thursday morning as the cold front moves across the area, remaining quite breezy. Behind the cold front, daytime temperatures on Thursday will be a good 10 degrees colder in most areas.
Southerly winds are bringing warmer temperatures and higher dewpoints into the region this evening, with temperatures up to 10 degrees warmer than this time yesterday. That said, recent obs have been running a few degrees cooler than indicated in hourly grids, so modified temps and dewpoints based on obs/trends.
Leaned toward the MAV/MET blend which recently has picked up on the warmer T and drier Td trend. Progged max temps today noticeably high ranging in the low to mid 70s for most areas which run about 10-15 deg above climo.
104 AM EST Wed Feb 24 2021 High pressure and dry conditions will bring fair weather through Thursday with above normal temperatures and mainly clear skies.
Conditions should deteriorate in the evening for locations ahead of a slow moving cold front. Low temperatures should range from the lower to mid 50s. While there could be some isolated/widely scattered WAA light rain/drizzle near the coast in the morning, the approach of a weak cold front could produce some showers during the afternoon over our northern/central FA. But for the most part, will keep CLL much cooler than HOU/GLS which are likely to remain south of the cold front tomorrow and Thur (up- per 50s vs around 70). Additionally at the coast (and the nearshore waters), sea fog should remain the problem as the WAA persists atop the cooler shelf waters.
926 PM CST Tue Feb 23 2021 A cold front is poised to move across the area overnight into Wednesday morning. There remains a low chance for a few showers to develop along the front across far northeast Oklahoma and northwest Arkansas late tonight, so will keep the low pops going in those areas.
1006 PM MST Tue Feb 23 2021 Have allowed the high wind warnings expire at 5 PM. The cold front has crossed most of the state already, with varying changes to local wind fields across western and central WY. Upper level pattern remains from the northwest tonight and tomorrow as a midlevel trough drops southward across eastern ID into UT. Winds tonight will be lighter at the surface, so snowfall with this trough will be lower than today, generally 1 to 2 inches for the Tetons, Salts, and Wyomings. As the trough departs Thursday afternoon, zonal flow sets up and continues to keep snow in the mountains.
Near the surface, a cold front is pushing southeast through the Texas Panhandle and western Oklahoma.
Coulston Snow showers will decrease in coverage this evening over the plains, but a weak cold front may bring another round of flurries late tonight into Wednesday morning.
355 AM EST Wed Feb 24 2021 High pressure will slowly move offshore later today and tonight. A weak cold front will cross the area on Thursday. Low pressure will impact the Southeast Coast into the weekend with unsettled weather. With high pressure sliding offshore, W/SW winds increase this afternoon and that will help push the high temperatures into the lower 70s in many areas away from the water, with mid to upper 60s along the coast, except closer to 60 degrees on the northern Outer Banks. Winds will be SW but will start to veer to NW just before daybreak as a dry cold front crosses the area and moves offshore during the early morning hours. A dry cold front will push through early Thursday morning with high pressure building in briefly.
839 PM PST Tue Feb 23 2021 Scattered snow and graupel showers will persist into the evening before high pressure brings quieter weather to the Inland Northwest for Wednesday.
930 PM PST Tue Feb 23 2021 Scattered snow and graupel showers will persist into the evening before high pressure brings quieter weather to the Inland Northwest for Wednesday.
1019 PM EST Tue Feb 23 2021 High pressure will then build in from the west and southwest through Wednesday night. Another front or area of low pressure will impact the region Thursday night into the weekend.
Showers associated with the incoming trough continue to move through the forecast area this morning. As the trough axis movies through the forecast area on Wednesday, some gusty wind will be expected, with showers weakening after the trough axis moves through.
Cold front is still expected to move into Northeast Oklahoma late tonight and exit Western Arkansas late morning Wednesday. /Issued 926 PM CST Tue Feb 23 2021/ A cold front is poised to move across the area overnight into Wednesday morning. There remains a low chance for a few showers to develop along the front across far northeast Oklahoma and northwest Arkansas late tonight, so will keep the low pops going in those areas.
Cold front was located along the I-80 corridor and moving slowly southward. Not as much wind for Wednesday in the post-frontal air mass, with cooler highs 25 to 35 degrees. A high pressure sets in on the Wyoming/Colorado border Thursday bringing drier conditions to SE Wyoming and the Nebraska Panhandle.
A broad longwave trough located over the northern Rockies will keep eastern Utah and western Colorado in a northwest-flow regime this evening and overnight. However, forecast soundings indicate plenty of dry air in the low- levels below this feature, and short- term guidance continues to show hardly anything reaching the ground through the evening/overnight, even in the far northern mountains. The flow quickly turns west then southwest by Thursday evening ahead of the aforementioned PacNW trough.
249 AM EST Wed Feb 24 2021 High pressure will bring another day of sunny skies and above normal temperatures to the region. A dry cold front will move through the area early Thursday, bringing slight cooler temperatures and a period of increased clouds to the area, but no rain.
330 AM EST Wed Feb 24 2021 Synopsis/Discussion - Windy today - Colder Temps for Thursday - Above normal Temps for the weekend - Windy today A wave of low pressure will track eastward across Northern Michigan today. The low level winds will veer to the north later today and into tonight.
100 AM EST Wed Feb 24 2021 High pressure will then build in from the west and southwest through Wednesday night. Another front or area of low pressure will impact the region Thursday night into the weekend.
/issued 853 PM CST Tue Feb 23 2021/ High pressure continues to move east this evening which has allowed southerly winds to continue across the Mid-South. Expect lows to drop into the lower to mid 40s. /issued 322 PM CST Tue Feb 23 2021/ Plenty of sunshine and southwesterly winds have warmed temperatures across the area into the mid 60s and into the low 70s in northeastern MS. As we head into tomorrow a weak cold front approaches the the area and by mid morning we could see some showers across the area.
Sfc winds will veer overnight ahead of a weak cold front, which will fropa KHOB around 11z, and move through other terminals by 15Z or so. /issued 146 PM CST Tue Feb 23 2021/ Upper ridge extending up across the region today is producing warm weather. A trough will dive down out of the NW and cross the Great Basin Wednesday before swinging across AZ early Thursday and into the area later in the day.
1102 PM CST Tue Feb 23 2021 Radar returns have been mostly virga so far this afternoon, but Cambridge recently reported light rain which may be a sign the lower atmosphere is beginning to saturate. Low pressure will track east across southern Minnesota through late evening. Ridge of high pressure will slide east Thursday and winds will become southerly by Thursday night.
Earlier this evening, temperatures above freezing has allowed some liquid precipitation to mix in with the snow. Under cold air advection on the back side of the departing weak low, afternoon temperatures will be on the slightly cooler side today compared to yesterday only reaching into the mid to upper 30s. However, if overnight temperatures remain somewhat steady without falling too much by daybreak, then these temperatures may easily be overachieved and a few locations may sneak into the lower 40s this afternoon.
A cold trough will move south across the forecast area Wednesday.
1024 PM EST Tue Feb 23 2021 High pressure and dry conditions will bring fair weather through Thursday with above normal temperatures and mainly clear skies.
Water vapor imagery showed an upper ridge positioned over the NERN PAC and Gulf of Alaska early this morning upstream from a broad area of troughing over the WRN CONUS.
Low-level ridging is now to our southeast which will promote southwesterly winds throughout the day. This is in line with more reliable MOS guidance temperatures and some of the warmer hi-res solutions once again (RAP/HRRR more representative as they are handling PBL depth better than GFS/NAM). Unfortunately moisture will be on the lower side, so low relative humidity values are expected this afternoon. With some lingering clouds and transition to northerly winds Thursday should be cooler. Areas closer to the I-85 corridor could remain in the low to mid 70s, however.
908 AM EST Wed Feb 24 2021 High pressure has settled into the region and is expected to produce continued pleasant weather conditions over the coming days. With this high pressure, drier air has filtered into the area, which is apparent on the 12Z morning sounding, showing only 0. The high temperature today will top out in the upper 70's to low 80's, which is around 4-6 degrees above average for the end of February. High pressure over the eastern Gulf of Mexico will produce excellent boating conditions for the gulf coast waters through the remainder of the week and into the weekend.
155 AM PST Wed Feb 24 2021 A strong cold front will bring gusty northeast winds and much cooler temperatures today.
Patchy drizzle is possible acrs Wrn AR later this mrng once the low clouds move in. A new upper lvl trof wl apch AR fm the W later Thu and Thu ngt.
Considering the recent cold front and recent model performances earlier this month after a cold front passage, I blended a combination of BCCONSRaw, HiRESWarw, and NBM for highs. Dramatically cooler temps in the upper 30s over remaining snow pack to mid 40s. A passing trough may bring some sprinkles/flurries close to our northeast CWA this evening, but I left out any mention of this as there will be limited moisture and any light precip should remain just to the northeast.
Late this afternoon and especially this evening, a weak cold front will sink down from the northwest and bring widely scattered showers to the cwa, with pops in the slight to low chance category. Cold front will stall to our south on Thursday, and a mild dry day is anticipated with temperatures reaching the upper 40s and 50s.
Forecast soundings indicate a lack of ice aloft briefly, therefore, some light freezing rain may mix in before the column fully saturates and produces light snow. A weak ridge and zonal flow will lead to warmer temperatures Thursday. A series of weak cold fronts will push through toward the weekend.
This area is on the western edge of clear/cold air and the warmer/low level moist airmass.
The low level jet has been cranking around 50 knots all night. Latest surface analysis places a 1003mb low over the Great Lakes with a cold front extending from Green Bay back through Saint Louis and into Oklahoma City.
Fog appears to be hindered inland this morning, most likely due to the 30-40 KT LLJ over the region; however, warm moist air continues to flow across the cooler shelf waters which should continue fog for the bays and nearshore waters through this morning. Moisture will continue to remain in the low levels which should help in patchy to areas of fog late tonight across the Coastal Plains and adjacent waters ahead of the boundary. Isolated showers will also be possible late tonight due to the front and continue through Thursday as the front stalls and a weak coastal trough develops. Did keep cooler temps for Wednesday across the northern Brush Country and Victoria Crossroads due to the proximity of the frontal boundary.
A cold trough will move south across the forecast area today.
522 AM CST Wed Feb 24 2021 A cold front continues to push through the forecast area this morning and will effectively end our short run on 60 degree temperatures.
The cold front will move into the forecast area later tonight, then stall across the forecast area as flow aloft becomes more zonal. South of the front, with warm and moist south winds moving over the cooler near shore waters, some patchy sea fog will be possible, however this looks to be mainly near the coast, as lift and winds seem to favor more low cloudiness further inland.
332 AM CST Wed Feb 24 2021 Weakly cyclonic westerly flow aloft today will back southwesterly tonight in advance of an upper level low pressure trough approaching from the west. At the surface, a cold front that swept through the area early this morning will be south of the area by daybreak.
While surface temperatures will be above freezing for the most part as precipitation moves in, wet bulb temperatures are generally below freezing. Thus as the lower levels saturate, expect freezing temperatures to prevail and snow to be the dominant precipitation type. Highs today will be limited to the lower 30s to lower 40s, which is still a bit above average for this time of year, due to mostly cloudy skies and continued cold air advection behind the cold front that passed through this past night.
A very-nice day is expected for Thursday as surface ridging moves overhead, lending to light winds with decreasing clouds by afternoon.
Ridge builds into the Pacific Northwest later today with chinook developing across the northern Rockies on Thursday.
An upper level positively tilted short wave trough will move across the region tonight and Thursday.
The shower activity will diminish by this afternoon as a weak ridge of high pressure slides over the area. A cold front is still on track to push through the Northern Rockies on Thursday.
532 AM CST Wed Feb 24 2021 (Today and tonight) A weak cold front will move across West Central Texas this morning. Slightly cooler temperatures are forecast today, with highs in the low to mid 60s across the Big Country and the upper 60s to mid 70s elsewhere.