Aikyam-Lab/Synoptic-Bench huggingface dataset:
345 PM CST Sun Feb 13 2022 Almost fall - like temperatures are observed across the area this afternoon as temperatures slowly warmed through the 50s area-wide on winds that ranged from light over the lower plains counties - to moderately breezy and downslope over the southwesternmost areas. The upper split flow pattern over the CONUS will be weak and zonal locally over the central Plains Monday and Monday night, which may increase the high level cloudiness.
331 PM MST Sun Feb 13 2022 The advertised mild day has arrived across the area as a sfc trof crossing the region has brought strengthening westerly to northwesterly downslope flow to nern WY/wrn SD.
950 PM EST Sun Feb 13 2022 Cold high pressure will remain over the area through Monday. Rain chances will increase with onshore winds as high pressure moves off the Mid Atlantic coast and a cold front approaches from the west late in the week. Temps will drop in CAA overnight, down just below freezing most places. Local area will remain at the base of mid to upper trough as strong high pressure builds down from the Canada into the upper Midwest.
526 PM CST Sun Feb 13 2022 Looking aloft, the east conus trough axis from the Great Lakes to the Tennessee Valley continues to drift east, while ridging builds over much of the west CONUS.
As for potential long fuse headline upgrades, it is difficult to determine just how long blowing snow will persist on the backside of this low. With temperatures so warm west of the valley combined with the higher winds, it's difficult to determine if blizzard conditions will last long enough to warrant upgrades. Tomorrow will see cold conditions with highs in the single digits above zero as arctic high pressure moves into the area.
Surface and mid-level high pressure builds over Texas tonight passing eastward Monday. /issued 303 PM CST Sun Feb 13 2022/ SHORT TERM (Tonight through Monday Night): 500mb ridge across the western United States will continue to provide subsidence across the state tonight. high pressure across south Texas tonight will move eastward Monday allowing an onshore flow to develop along the lower Texas coast. Low temperatures will reach near freezing across eastern portions of the northern ranchlands for at least an hour by Monday morning.
1001 PM MST Sun Feb 13 2022 The advertised mild day has arrived across the area as a sfc trof crossing the region has brought strengthening westerly to northwesterly downslope flow to nern WY/wrn SD.
Clouds decrease this afternoon as the trough axis shifts eastward, subsidence increases aloft, and heights begin to rise.
1227 AM EST Mon Feb 14 2022 Cold high pressure will remain over the area through Monday. Rain chances will increase with onshore winds as high pressure moves off the Mid Atlantic coast and a cold front approaches from the west late in the week. Temps will drop in CAA overnight, down just below freezing most places. Local area will remain at the base of mid to upper trough as strong high pressure builds down from the Canada into the upper Midwest.
1231 AM EST Mon Feb 14 2022 In the wake of a cold frontal passage, colder air will continue to spill into the region.
High pressure just east of the region will continue to provide VFR conditions tonight and Monday. Surface and mid-level high pressure builds over Texas tonight passing eastward Monday. /issued 303 PM CST Sun Feb 13 2022/ SHORT TERM (Tonight through Monday Night): 500mb ridge across the western United States will continue to provide subsidence across the state tonight. high pressure across south Texas tonight will move eastward Monday allowing an onshore flow to develop along the lower Texas coast. Low temperatures will reach near freezing across eastern portions of the northern ranchlands for at least an hour by Monday morning.
JB Chattanooga Airport, TN 25 53 29 61 40 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 24 47 26 58 34 / 0 0 0 0 0 Oak Ridge, TN 23 48 26 58 33 / 0 0 0 0 0 Tri Cities Airport, TN 21 41 22 54 32 / 10 10 0 0 0.
Scattered snow showers will wane early this morning with building high pressure. With lows dipping into the 5 to 15 degree range and slightly higher winds (>5mph), advisory level wind chills are forecast along the highest elevations of eastern Tucker County. Ridging begins to build in tonight with quasi-zonal mid-level flow taking control.
1018 PM MST Sun Feb 13 2022 Upper level ridging will be breaking down over the next 24 hours as Pacific energy heads onshore.
South to southwest low level flow during the early today will bring in warmer low level air which will allow daytime temperatures to warm some 10 to 15 degrees over what we saw Sunday with most areas in the 60s with lower 70s across the south into north Texas. south winds will continue tonight and may begin to increase toward morning making for a more mild overnight period with some areas remaining in the lower 40s.
847 PM PST Sun Feb 13 2022 Current forecast seems on track, with overnight portion basically being dry before upper low and cold front impacts the area beginning Monday Morning.
352 AM EST Mon Feb 14 2022 High pressure will build over the region today and will remain the dominant feature through the middle of the week. A cold front will impact the region late week, then high pressure will shift into the area for the weekend. Near term guidance indicates that 1035+mb high will remain centered over the Mid Atlantic states, ridging SW across the CWA. Using a blend of MOS, min temperatures should range from the low 30s inland to the mid 30s along the coast.
1109 PM CST Sun Feb 13 2022 Weak high pressure will dominate through the period with widespread VFR conditions expected.
1032 PM CST Sun Feb 13 2022 Looking aloft, the east conus trough axis from the Great Lakes to the Tennessee Valley continues to drift east, while ridging builds over much of the west CONUS.
1109 PM EST Sun Feb 13 2022 Cold front swept through earlier this afternoon and more recently the strong cold air advection has arrived with quite an entrance. One of these bands did pass through the Lower and Middle Keys but Key West only recorded a trace of precipitation. Small Craft Advisories remain in effect in the wake of todays cold front passage.
/issued 731 PM CST Sun Feb 13 2022/ A frontal boundary is currently positioned over portions of eastern Arkansas This cold front is expected to continue to move through the Mid-South through this evening.
535 AM CST Mon Feb 14 2022 Summary: A lull in the pattern will occur today with partly to mostly sunny skies and slightly warmer temps.
High temperatures will be near daily average on a rather unremarkable day, with highs in the low to mid 50s and mostly clear skies.
though RH values creep a little higher in the southeast where temps drop closer to saturation under the ridge just before dawn.
The 8Z surface analysis shows a cold front which passed through the area earlier, now situated south of the area. A large trough is currently situated over the Midwest and Northeast and will continue to move off to the east. Overnight lows will drop into the upper teens to mid 20s with a small ridge to valley split expected to develop under clear skies and light winds. A warm up is expected Tuesday as high pressure continues to move to the east and shifts winds from westerly to southerly/southeasterly.
A rather cool morning in the Sunshine State, take a light jacket with you before you head out the door with some areas expected to be at least 10 degrees cooler compared to yesterday morning. The drastic change comes as a cooler and very dry air is pushed into the area by building high pressure. Ridge of high pressure will continue to build from the west, and along the Eastern Seaboard while moving east through mid week allowing winds to become more easterly and increase in moisture.
Dewpoint temperatures are hovering in the lower 50s. This will continue at least for the next 48 hours as a ridging progress towards the northeast from the Texas gulf coast maintaining a strong pressure gradient over our coastal waters.
Scattered snow showers will wane this morning with building high pressure. With lows in the 5 to 15 degree range and slightly higher winds (>5mph), advisory level wind chills are forecast along the highest elevations of eastern Tucker County. Ridging begins to build in tonight with quasi-zonal mid-level flow taking control.
312 AM MST Mon Feb 14 2022 Upper ridge axis shifts east over the area today maintaining warm and dry conditions, with breezy winds along the western foothills. An upper low will drop south and east out of the Pac NW this evening, diving south of the area. The lower elevations should see lesser totals.
The surface analysis early this morning showed high pressure centered over southern Illinois with a stationary front extending from Oklahoma to Tennessee. Temperatures today will not be as cold as yesterday as the trough moves off to the east and there will be decent mixing up to 900mb along with a mostly sunny sky.
543 AM CST Mon Feb 14 2022 At 09Z, a cold front had moved into central KS. A reinforcing cold front however was dropping south from central and southeast SD, and should reach into Keya Paha and Boyd County by daybreak. Today, southerly winds increase across the area to 15 to 25 mph near and west of Highway 83, with the higher gusts to 30 mph across the western Sandhills. With a lack of downslope winds, highs today will be a little cooler across the west and southwest than yesterday. The upper flow will remain fairly zonal through tonight as a positively tilted upper trough drops into the Great Basin. Tuesday, the upper level flow becomes more southwesterly on as a positively tilted trough moves across the Great Basin.
537 AM CST Mon Feb 14 2022 The current weather pattern across the region is defined by northwesterly flow aloft as the trough which brought cold temperatures this past weekend exits to the east. By tonight the mid level pattern becomes zonal with ridging building in tomorrow in response to a trough digging south out of the Pacific Northwest into NV/CA.
This activity will wane from w to e throughout the day as high pressure builds in behind it.
An upper level trough on Monday will return temperatures to seasonal normals and provide breezier onshore winds. A passing upper level trough is spreading high level clouds over the Bay Area and Central Coast early Monday morning. The passing trough will usher in much cooler air today.
Tonight will be slightly milder than normal, with mostly upper 20s to upper 30s other than a few typically colder pockets that will likely bottom out in the lower 20s if not slightly colder than that.
We see temperatures, at 3:15 AM CST, already down to near freezing. Most locations will drop to within a degree or two of the freezing mark.
As mid-level ridging amplifies over the Gulf of Mexico, it will push the boundary back to the north today.
The cold front that moved across the Florida Keys yesterday is now draped across central Cuba and the Bahamas, well to the southeast of our area. Much drier and cooler air has filtered in, and temperatures across the island chain range from the upper 50s to near 60 in the Upper Keys to the lower 60s in the Middle and Lower Keys. Dewpoints have dropped into the lower to mid 50s this morning, and winds around 20 mph have helped make for a cool morning. High pressure centered near the Gulf Coast is building into the region has kept the pressure gradient tightened overnight and into the morning.
We'll see lows generally in the high single digits (southwestern MN) to upper teens to mid 20s (across the MO River Valley). Tightening surface pressure gradient (SPG) overnight with high pressure to the northeast and low pressure to the west brings breezy conditions tonight, with gusts up to 35 mph. Continued low level WAA, weak ridging, and lack of snow cover brings near to above average temperatures to the area - from the lower/mid 30s across southwestern MN to lower/mid 50s in the MO River. Precautions should be taken to prevent fire start and spread, with GFDI in the high to very high range.
328 AM CST Mon Feb 14 2022 At 09Z, a cold front had moved into central KS. A reinforcing cold front however was dropping south from central and southeast SD, and should reach into Keya Paha and Boyd County by daybreak. Today, southerly winds increase across the area to 15 to 25 mph near and west of Highway 83, with the higher gusts to 30 mph across the western Sandhills. With a lack of downslope winds, highs today will be a little cooler across the west and southwest than yesterday. The upper flow will remain fairly zonal through tonight as a positively tilted upper trough drops into the Great Basin. Tuesday, the upper level flow becomes more southwesterly on as a positively tilted trough moves across the Great Basin.
420 AM CST Mon Feb 14 2022 The current weather pattern across the region is defined by northwesterly flow aloft as the trough which brought cold temperatures this past weekend exits to the east. By tonight the mid level pattern becomes zonal with ridging building in tomorrow in response to a trough digging south out of the Pacific Northwest into NV/CA.
At the surface, the center of high pressure will rapidly shift east from the BRO CWFA to the Mid-Atlantic region.
330 AM CST Mon Feb 14 2022 At 09Z, a cold front had moved into central KS. A reinforcing cold front however was dropping south from central and southeast SD, and should reach into Keya Paha and Boyd County by daybreak. Today, southerly winds increase across the area to 15 to 25 mph near and west of Highway 83, with the higher gusts to 30 mph across the western Sandhills. With a lack of downslope winds, highs today will be a little cooler across the west and southwest than yesterday. The upper flow will remain fairly zonal through tonight as a positively tilted upper trough drops into the Great Basin. Tuesday, the upper level flow becomes more southwesterly on as a positively tilted trough moves across the Great Basin.
Tonight, quiet conditions are on tap with a developing easterly wind as high pressure shifts from the Upper Midwest to the Great Lakes and low pressure develops along the Lee of the Rockies. Key messages: 1) Warmer Tuesday.
High pressure will continue to bring dry conditions with temperatures well above average through Tuesday.
VFR is anticipated at the aerodromes through the next 24 hours with high pressure in control. At the surface, the center of high pressure will rapidly shift east from the BRO CWFA to the Mid-Atlantic region.
High pressure builds across this afternoon through tonight and starts to translate to our east on Tuesday.
On Tuesday, a vigorous mid/upper level trough will dig into the Four Corners region, inducing surface cyclogenesis over the TX Panhandle region/Western OK.
A low pressure system will move southward through the Great Basin late tonight into Tuesday, resulting in much cooler weather, increased winds, and a chance of light mountain precipitation.
517 AM CST Mon Feb 14 2022 Gusty northerly winds behind the cold front will subside this morning as high pressure builds in from the north. A warm nose will push into the southwest this afternoon as southeast breezes pick up across central SD ahead of the next low pressure system. The breezy and gusty southeast winds will push farther east tonight and Tuesday as the low shifts off the Rockies. However, other than some resultant high grassland fire danger due to the warmer temperatures with good mixing winds, the low will have little effect on the region. Temperatures will maintain their steep gradient with significantly warmer values over the western forecast area. Behind each clipper, high pressure systems move in.
358 AM MST Mon Feb 14 2022 Satellite and current surface observations show clear skies across the CWA, and temperatures across the eastern plains remain several degrees warmer than the previous few nights. Northwest flow aloft will become more westerly throughout the day today as high pressure continues to build into the area. Forecasted highs for today will reach into the high-50s to low-60s over the plains and mid-40s over the higher terrain.
This trough will move southeast by sunrise, but synoptic forcing for ascent is already on the decline. Subsidence behind the wave today and high pressure building in from the west will then lead to a quiet period of weather for most of today and tonight. Mid-level heights will rise with increasing warm advection tonight as broad ridging works in from the west.
Breezy conditions are expected Tuesday as a strong pressure gradient develops over the region on the backside of the departing high pressure.
Behind its cold front, elevated north-northwest winds linger within the southern Red River Valley early this morning. Arctic high pressure is spilling into the area, bringing temps into the single digits to twenties below zero. Looking ahead towards Tuesday, split flow develops as upper troughing digs into the SW CONUS.
A change in the weather pattern will begin today as a low pressure system digs southward through the Pacific Northwest, bringing a cold front through central Idaho this afternoon and western Montana this evening. The one exception is across southwest Montana into Lemhi County where the cold front will be timed better with sunset, which will allow higher potential for accumulating snowfall. Most areas of western Montana will see cooler conditions with snow snow showers in the area on Tuesday.
355 AM MST Mon Feb 14 2022 The flow aloft will transition to a more westerly direction, by aftn, as a sfc lee trough becomes better defined along the front range. As far as highs, 850-700 mb temps change little from yesterday and with the low level flow having a downslope component, highs should reach the mid 50s to lower 60's over the plains. Looking at the winds, it will remain windy over the higher terrain. On Tuesday, an upper level trough of low pressure will deepen over the Western U. with a flat upper ridge covering much of the Central and Eastern U.
The system will bring scattered showers to the northern Sierra along with cooler temperatures and breezy south winds.
242 AM MST Mon Feb 14 2022 Latest analysis shows the upper ridge over the western CONUS building eastward toward the forecast area as an upper low drops southward into the Pacific Northwest. At the surface, high pressure is sliding southeastward out of Saskatchewan into the eastern Dakotas and western Minnesota. This will lead to a wide spread in the temperatures today with highs only reaching the lower 30s in parts of Perkins and Ziebach counties, with lower 50s expected over parts of northeastern Wyoming and far southwestern South Dakota. Breezy southeasterly winds will develop today due to the pressure gradient between the high pressure to the east and the low pressure trough to the west. Split upper flow will develop tonight as the Pac NW upper low dives southward into California and Nevada.
427 AM CST Mon Feb 14 2022 Summary: A lull in the pattern will occur today with partly to mostly sunny skies and slightly warmer temps.
312 AM CST Mon Feb 14 2022 Gusty northerly winds behind the cold front will subside this morning as high pressure builds in from the north. A warm nose will push into the southwest this afternoon as southeast breezes pick up across central SD ahead of the next low pressure system. The breezy and gusty southeast winds will push farther east tonight and Tuesday as the low shifts off the Rockies. However, other than some resultant high grassland fire danger due to the warmer temperatures with good mixing winds, the low will have little effect on the region. Temperatures will maintain their steep gradient with significantly warmer values over the western forecast area. Behind each clipper, high pressure systems move in.
Readings should climb to near normal levels today, and then well above normal Tuesday when southern portions of the area will climb into the lower 60s.
As the low deepens, strengthening surface pressure gradient brings breezy conditions, especially during the daytime hours with mixing each day.
710 AM EST Mon Feb 14 2022 An upper level trough off the eastern seaboard pushes east during today. allowing flat ridging/nearly zonal flow to work in across the Gulf of Mexico and FL. High pressure slowly tracking east will allow the gradient to relax today with robust winds diminishing.
As this wave dives south it will phase with a trof in central Canada, pulling colder air into northeast Montana, and spinning up a lee low over south central Montana. Upper trof rotates eastward through the end of the week, with Montana still in the northwest flow. There is a chance of some light snow or flurries at the area TAF sites tonight into Tuesday as a low pressure system moves across the state.
415 AM MST Mon Feb 14 2022 Latest analysis shows the upper ridge over the western CONUS building eastward toward the forecast area as an upper low drops southward into the Pacific Northwest. At the surface, high pressure is sliding southeastward out of Saskatchewan into the eastern Dakotas and western Minnesota. This will lead to a wide spread in the temperatures today with highs only reaching the lower 30s in parts of Perkins and Ziebach counties, with lower 50s expected over parts of northeastern Wyoming and far southwestern South Dakota. Breezy southeasterly winds will develop today due to the pressure gradient between the high pressure to the east and the low pressure trough to the west. Split upper flow will develop tonight as the Pac NW upper low dives southward into California and Nevada.
Forecast high temperatures today remain on track to top out in the low to mid 60s under sunny skies.
Highs will be a few degrees warmer than this, and in all, it's a pretty nice day following the cloudy and cold start. Thus tonight's lows will be initially cool over snow cover, in the north, but increasing south to southeast winds will help keep the temperatures near 10 degrees warmer than last night.
1138 AM CST Mon Feb 14 2022 The current weather pattern across the region is defined by northwesterly flow aloft as the trough which brought cold temperatures this past weekend exits to the east. By tonight the mid level pattern becomes zonal with ridging building in tomorrow in response to a trough digging south out of the Pacific Northwest into NV/CA.
With dewpoint temperatures now in the mid 40s, it is likely temps will drop quickly below the low 60s shown in MOS guidance. Over the next few days, the low sitting off New England will continue to progress eastward, and high pressure will build over the Atlantic coast in its wake.
359 PM EST Mon Feb 14 2022 High pressure over the region will move east allowing southerly flow to draw much warmer air into the region for the middle of the week.
This is giving us full sunshine and has enabled temperatures to recover pretty quickly with most in the lower to mid 50s as of 10 AM. However, the brisk north to northwest winds are still making it feel pretty chilly out and will also limit high temps to the low-mid 60s, except upper 50s toward NE Volusia. Northerly winds around 10-15 mph across the interior and up to 15-20 mph along the coast will continue to usher in a much cooler and very dry airmass into the region today.
137 PM MST Mon Feb 14 2022 A low pressure system is pushing into the Pacific NW, and weak upper ridging covers the Rockies. At the surface, high pressure and easterly flow across eastern SD are keeping temps in the 20s, while a trough and breezy southwesterly flow across the west are allowing temps to rise into 40s. The upper trough will gradually cross the CONUS this week. As the upper low dives southeast tonight, an elongated trough will develop before it splits, keeping most of the energy well to our south.
As of 11AM, we have been monitoring a band of precipitation across eastern Washington and north Idaho associated with a cold front. Areas of light snow, rain and possibly drizzle will persist through the night under a decaying upper trough axis. Bands of light snow or drizzle may linger through the night under a stretched out upper trough.