Aikyam-Lab/Synoptic-Bench huggingface dataset:
311 PM EST Mon Nov 22 2021 High pressure building across the region will provide chilly and dry weather overnight.
232 PM CST Mon Nov 22 2021 Currently aloft, a trough is digging into the northeastern U. , with northwest flow along the backside of the trough over the Midwest. This cloud cover and sustained cold air advection behind last night's cold front has kept temperatures running about 10 degrees below climatological norms this afternoon. Also overnight, upper-level ridging will build into the Midwest and high pressure over the Middle Mississippi Valley will shift eastward, returning southerly/southwesterly flow to the CWA. In turn, warmer air will be advected into the CWA tomorrow, allowing for temperatures to rebound to or just above climatological normals under mostly sunny skies.
A cold front will begin to sweep through the CWA from northwest to southeast, starting in the afternoon hours and continuing into Tuesday night.
Otherwise, dry high pressure will provide VFR with clear skies.
213 PM CST Mon Nov 22 2021 High pressure centered over the Lower Missouri River Valley will move over the forecast area tonight. This will set up clear skies and a cold night, with some of the lowest temperatures of the season in the forecast.
an upper level ridge axis was pushing eastward into the Southern Plains. Upstream of this ridge. the upper level ridge axis is expected to push into the region with any remaining cirrus clouds moving out of the CWA. Underneath the upper ridge.
By Tuesday afternoon, the transition from broad, anticyclonically-curved mid level flow to broad cyclonically-curved mid level flow will be well underway, and this will really help deepen the leeside trough across Central High Plains northward across the Dakotas.
A low pressure system will produce cooler temperatures for the middle of this week. The fog and low clouds have been dissipating and we expected the low clouds and fog to clear out by late afternoon today.
601 PM EST Mon Nov 22 2021 In the wake of a strong cold front, lake effect snow showers will expand today and last through Tuesday.
Warmer temperatures on Tuesday before another cool down.
315 PM CST Mon Nov 22 2021 Minimal impacts in the short term with upper level ridging is expected to traverse the region through the period. Underneath the ridge warmer air will advect north beginning tonight into tomorrow with southerly flow. Winds will turn to the north late Tuesday evening as an inverted trough extending north from low pressure in SD pushes through the region. This will set the stage for cooler conditions for the holiday.
659 PM EST Mon Nov 22 2021 Colder weather with flurries and scattered snow showers will give way to dry and warmer conditions for mid week. Another cold front with rain can be expected on Thanksgiving. Most of the snow shower activity will confined to the I-80 corridor and eventually the ridges. The upper ridge axis currently over the wrn CONUS will build ewd across the Great Lakes on Wed, leading to moderating temperature and another rain chance by Thanksgiving. Rain chance will increase on Thu as that upr trough/cold front approaches.
Much Cooler And Drier Through Mid Week. A cold front will move south of the forecast area overnight.
420 PM MST Mon Nov 22 2021 Water vapor shows upper ridge axis extending through the Rockies, with surface analysis showing a deepening trof in the lee of the Rockies. Very mild weather will continue through Tuesday with upper ridge building eastward. Southwest winds will gradually increase overnight as lee trof advances eastwards. Surface trof will work across the region on Tuesday, with thermal ridge overhead resulting in high temps well into the 50s for northeast WY and northwest SD, with 60s and even some lower 70s south/east of the Black Hills. Cold front moves through Tuesday night, with gusty northwest winds and much cooler temps filtering in.
But, given all the high clouds streaming in, did up sky cover some. A cold front will begin to sweep through the CWA from northwest to southeast, starting in the afternoon hours and continuing into Tuesday night.
Few-Sct030-050 Strato- Cu clouds with some high level cirrus will move across the terminals through 09Z as a cold front moves south through the region with SKC developing thereafter as much drier air moves into the region in the wake of the front. /issued 229 PM EST Mon Nov 22 2021/ Mid/upper-level troughing continues across the eastern U. For tonight, much cooler and drier air will quickly move into the region as high pressure builds over the southeast on robust north- northwest winds. This setup will bring plenty of sunshine on Tuesday, but high temperatures will only reach the lower 60s to upper 60s.
An upper level ridge weakens and exits the region into Tuesday followed by a transition to increased WSW flow aloft ahead of an approaching trough to the NW. Model profiles show a favorable profile for mixing down stronger winds over the higher elevations, Palmer Divide, and portions of the plains. A Red Flag warning has been issued for the higher mountains/foothills, Palmer Divide, Cheyenne Ridge, and portions of Park County.
Sunny skies and brisk NNW winds prevail across the Mid-South as high pressure surges into the region. High pressure will settle over the region.
425 PM MST Mon Nov 22 2021 The ridge axis is currently moving over the area and has resulted in mostly sunny skies. Winds will be gustier in the higher terrain tomorrow possibly upwards of 30-50 mph is spots. The San Juan and West Elk mountains could see generally 2-4 inches in the higher elevations while the northern mountains may only see a few inches at the most.
A dry cold front will drop south from Canada Tuesday night, resulting in a substantial drop in temperatures.
High pressure centered over the Lower Missouri River Valley will move over the forecast area tonight. This will set up clear skies and a cold night, with some of the lowest temperatures of the season in the forecast.
529 PM CST Mon Nov 22 2021 High pressure will continue to drift eastward over the Ohio Valley area tonight while pressure falls are progged across the Central High Plains region. This will correspond with rising temperatures as the low level thermal ridge expands into the Central High Plains. Some locations may struggle to fall below the low/mid 50s. After a mild beginning to the day, an advancing cold front will usher in much cooler air late in the period with a chance for showers mainly east of the Kansas Turnpike. High pressure will bring light winds making temperatures in the mid and upper 40s feel a bit more comfortable.
919 PM EST Mon Nov 22 2021 High pressure building across the region will provide chilly and dry weather overnight.
546 PM CST Mon Nov 22 2021 Currently aloft, a trough is digging into the northeastern U. , with northwest flow along the backside of the trough over the Midwest. This cloud cover and sustained cold air advection behind last night's cold front has kept temperatures running about 10 degrees below climatological norms this afternoon. Also overnight, upper-level ridging will build into the Midwest and high pressure over the Middle Mississippi Valley will shift eastward, returning southerly/southwesterly flow to the CWA. In turn, warmer air will be advected into the CWA tomorrow, allowing for temperatures to rebound to or just above climatological normals under mostly sunny skies.
855 PM CST Mon Nov 22 2021 High pressure will move across the region this evening and overnight allowing winds to diminish this evening. Temperatures will drop into the lower to mid 20s tonight.
243 PM MST Mon Nov 22 2021 The ridge axis is currently moving over the area and has resulted in mostly sunny skies. Winds will be gustier in the higher terrain tomorrow possibly upwards of 30-50 mph is spots. The San Juan and West Elk mountains could see generally 2-4 inches in the higher elevations while the northern mountains may only see a few inches at the most.
811 PM CST Mon Nov 22 2021 A broad upper-level trough is situated over the eastern CONUS this evening with a surface anticyclone over the Mid MS Valley. Temperatures have already fallen into the lower 30s across portions of west TN and will continue to drop throughout the overnight period. Minimum temperatures will range from the mid 20s to the lower 30s with the lowest temperatures generally over interior portions of west TN. Sunny skies and brisk NNW winds prevail across the Mid-South as high pressure surges into the region. High pressure will settle over the region.
Did up cloud cover grids some tonight, as NBM and others not counting for the high level cloud cover. Minimal impacts in the short term with upper level ridging is expected to traverse the region through the period. Underneath the ridge warmer air will advect north beginning tonight into tomorrow with southerly flow. Winds will turn to the north late Tuesday evening as an inverted trough extending north from low pressure in SD pushes through the region. This will set the stage for cooler conditions for the holiday.
Some cooler and drier air moved in central FL behind this afternoon's initial frontal passage, and a secondary, reinforcing cold front is now just south of Daytona-Deland-Leesburg. With cooler air settling in tonight, overnight lows are expected fall into the low-mid 50s, possibly upper 40s in the normally cooler northern Lake and NW Volusia locations. Very dry air will settle into central Florida with afternoon min RH falling into the low-mid 30s across the interior, and combined with gusty north winds, conditions will be fire sensitive.
311 PM MST Mon Nov 22 2021 An upper level ridge weakens and exits the region into Tuesday followed by a transition to increased WSW flow aloft ahead of an approaching trough to the NW. Model profiles show a favorable profile for mixing down stronger winds over the higher elevations, Palmer Divide, and portions of the plains. A Red Flag warning has been issued for the higher mountains/foothills, Palmer Divide, Cheyenne Ridge, and portions of Park County.
827 PM CST Mon Nov 22 2021 Tranquil weather across the Tennessee Valley this evening, with high pressure at the surface creating clear and calm conditions over the region. High pressure will be overhead allowing for clear skies and light northerly winds to persist. With increasing heights, temps will be a tad warmer with daytime highs reaching the lower 50s and overnight lows hovering around freezing.
41 Dry, cooler air is already filtering into Georgia behind earlier frontal passage, and steady northwest flow will usher in the coldest air of the season tonight.
815 PM EST Mon Nov 22 2021 00Z sfc analysis shows a chilly area of high pressure moving into the Ohio Valley with CAA working into eastern Kentucky on diminishing northwest winds. An upper level trough was over the eastern CONUS, and ridging was over the west this afternoon. There were still some cirrus periodically in the sky due to a jet rounding through the trough, but models agree on this departing this evening. Meanwhile, ridging aloft will build in from the west, arriving on Tuesday night.
710 PM EST Mon Nov 22 2021 Dry, cooler air is already filtering into Georgia behind earlier frontal passage, and steady northwest flow will usher in the coldest air of the season tonight.
214 PM MST Mon Nov 22 2021 Temperatures rose into the 50s across parts of Northeast Montana this afternoon as a ridge of high pressure was centered overhead. This ridge will continue to shift east as we head through the day tomorrow. This will bring one more day with highs largely in the 40s and lower 50s before a cold front moves through the area Tuesday evening into Tuesday night.
A building ridge aloft will bring ample sunshine and increasing 850 mb temperatures. Meanwhile surface pressure gradients will increase as troughing develops in the lee of the Rockies.
504 PM CST Mon Nov 22 2021 High pressure will move across the region this evening and overnight allowing winds to diminish this evening. Temperatures will drop into the lower to mid 20s tonight.
With only thin cirrus noted to our north, temperatures have really cratered as of 02z and hourly temps are running a little cooler than fcst hourly temps attm.
This ridge will move over the area tomorrow along with good mixing and higher winds at the surface. This combination of a drier airmass, warmer temps, and breezier winds makes for fire weather concerns tomorrow afternoon. Due to the high winds and low RH a Red Flag Warning has been issued for portions of the CWA between noon and 6 PM tomorrow.
LLWS will become evident later this evening in response to an approaching upper level trough entering the inter-mountain west. As the low level inversion begins to mix out late Tuesday morning, expect thermal turbulence to increase along with increasing surface winds. /issued 231 PM CST Mon Nov 22 2021/ An upper level ridge will continue to progress across the center of the CONUS this evening through tomorrow. At the same time, a short wave trough will move onshore in the Pacific Northwest Tuesday morning and then progress into the Intermountain West during the afternoon. This short wave trough will result in stronger surface lee cyclogenesis/troughing on Tuesday. This will result in an elongated positively tilted upper trough axis shifting across the central CONUS through the midweek period.
High pressure ridge axis just to the east, setting up light northerly winds and mostly clear skies. High pressure ridging is building across the area this afternoon and this will continue through the period. A cold night is on tap with lows ranging from around freezing in the Golden Triangle area to the mid 30s in the south. Surface and upper ridging will continue on Tuesday, with mainly clear skies and highs ranging from the mid 50s to mid 60s.
High pressure persists with above normal temperatures today and lighter offshore winds. High pressure currently over the region will weaken over the next 12 hours as an upper level trough lurking off the coast moves eastward. The upper trough will bring another storm system to the PacNW, but locally a dry cold front will passing through on Tuesday. The fropa will bring slightly cooler temperatures on Tuesday.
555 PM EST Mon Nov 22 2021 High pressure building across the region will provide chilly and dry weather overnight.
The pressure gradient between the cold front pushing out of the region and high pressure across the Midwest building southeast into the region has kept breezy northerly winds in place through the day. High pressure will be overhead allowing for clear skies and light northerly winds to persist. With increasing heights, temps will be a tad warmer with daytime highs reaching the lower 50s and overnight lows hovering around freezing.
Ridging will move east of the area this evening as a cold front continues to approach eastern Oregon. The cold front will arrive mostly after midnight, and will move into southwestern Idaho during the early morning hours of Tuesday, and will progress through the area through the afternoon.
526 PM EST Mon Nov 22 2021 This afternoon an upper level low was just east of James Bay with a trough extending down into the northern Great Lakes. An upper level ridge was over the northern Rockies with troughing moving into the Pacific Northwest. A trough will deepen on Tuesday from the lee of the Rockies and east into the Northern Plains.
VFR conditions will prevail through the period as high pressure dominates favoring SKC or perhaps occasional high cirrus. CDG Chattanooga Airport, TN 29 49 30 56 35 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 26 46 27 54 34 / 0 0 0 0 0 Oak Ridge, TN 25 46 27 54 33 / 0 0 0 0 0 Tri Cities Airport, TN 22 42 22 53 29 / 0 0 0 0 0.
316 AM EST Tue Nov 23 2021 Latest analysis shows high pressure just off to our west early this morning. At the upper levels, a deep trough is over the eastern third of the US and a ridge is over the western US. The upper level trough axis will move east off the coast today and the ridge will build over the area today and tomorrow.
1257 AM EST Tue Nov 23 2021 High pressure sliding east across the Ohio Valley and lower MI will continue to produce VFR conditions with clear skies and light winds. Winds will mainly be from the west overnight and Tuesday, but will back to the south Tuesday evening as the high shifts east and we get into the southerly flow on the back side of the system. With the low level flow remaining northwest, skies should end being clear/mostly clear tonight with the general subsidence/northwest upper level confluent flow, allowing mins to fall into lower 20s/around 20 (guidance temps suggest even slightly colder) as winds go calm/nearly calm.
Tonight, an approaching longwave trough will help bring in some mid/high level clouds and will keep low temperatures in the lower 50s across most of the area.
Minimal impacts in the short term with upper level ridging is expected to traverse the region through the period. Underneath the ridge warmer air will advect north beginning tonight into tomorrow with southerly flow. Winds will turn to the north late Tuesday evening as an inverted trough extending north from low pressure in SD pushes through the region. This will set the stage for cooler conditions for the holiday.
Behind yesterdays cold front very dry air has been advected into the area. Tomorrow high pressure at the surface continues to dominate the weather across the FA.
00Z sfc analysis shows a chilly area of high pressure moving into the Ohio Valley with CAA working into eastern Kentucky on diminishing northwest winds. An upper level trough was over the eastern CONUS, and ridging was over the west this afternoon. There were still some cirrus periodically in the sky due to a jet rounding through the trough, but models agree on this departing this evening. Meanwhile, ridging aloft will build in from the west, arriving on Tuesday night.
1134 PM CST Mon Nov 22 2021 High pressure will move across the region this evening and overnight allowing winds to diminish this evening. Temperatures will drop into the lower to mid 20s tonight.
255 AM CST Tue Nov 23 2021 Quiet weather will continue across the region as high pressure resides at the surface and surface ridging moves in through the course of today. While we start the day chilly, we will warm into the mid/upper 50s in the Golden Triangle to the lower 60s across the rest of the area.
Tranquil weather across the Tennessee Valley this evening, with high pressure at the surface creating clear and calm conditions over the region. High pressure will be overhead allowing for clear skies and light northerly winds to persist. With increasing heights, temps will be a tad warmer with daytime highs reaching the lower 50s and overnight lows hovering around freezing.
The inversion persists this evening and fog is starting to form in the Lower Treasure Valley west of Boise as visibilities are dropping in Ontario, Nampa, and Caldwell. The fog may last through Tuesday morning, although the cold front and attendant precipitation arrives by mid-morning which would help to clear it out. Patchy IFR fog is possible in the lower Treasure Valley and the Cambridge area tonight through early Tuesday morning. Ridging will move east of the area this evening as a cold front continues to approach eastern Oregon. The cold front will arrive mostly after midnight, and will move into southwestern Idaho during the early morning hours of Tuesday, and will progress through the area through the afternoon.
1231 AM EST Tue Nov 23 2021 High pressure building across the region will provide chilly and dry weather overnight.
1036 PM CST Mon Nov 22 2021 High pressure will continue to drift eastward over the Ohio Valley area tonight while pressure falls are progged across the Central High Plains region. This will correspond with rising temperatures as the low level thermal ridge expands into the Central High Plains. Some locations may struggle to fall below the low/mid 50s. After a mild beginning to the day, an advancing cold front will usher in much cooler air late in the period with a chance for showers mainly east of the Kansas Turnpike. High pressure will bring light winds making temperatures in the mid and upper 40s feel a bit more comfortable.
144 AM MST Tue Nov 23 2021 Upper level ridging with very dry air over the region this morning but a quick moving disturbance over the Pacific Northwest already inducing height falls west of the Continental Divide.
Temperatures will struggle to get into the lower 50s across the northern half of the forecast area, while southern counties may be able to reach the middle 50s.
1035 PM MST Mon Nov 22 2021 The ridge axis is currently moving over the area and has resulted in mostly sunny skies. Winds will be gustier in the higher terrain tomorrow possibly upwards of 30-50 mph is spots. The San Juan and West Elk mountains could see generally 2-4 inches in the higher elevations while the northern mountains may only see a few inches at the most.
118 AM CST Tue Nov 23 2021 High pressure was centered over southern IL this morning and is forecast to drop southeast into KY and TN this afternoon. After a cold start this morning in the 20s, high temperatures should reach the lower 50s in valley areas, with middle to upper 40s atop the higher plateau locations.
/Issued 915 PM EST Mon Nov 22 2021/ Dry, cooler air is already filtering into Georgia behind earlier frontal passage, and steady northwest flow will usher in the coldest air of the season tonight.
High pressure ridge over the region will keep the weather quiet in the overnight. High pressure ridging is building across the area this afternoon and this will continue through the period. A cold night is on tap with lows ranging from around freezing in the Golden Triangle area to the mid 30s in the south. Surface and upper ridging will continue on Tuesday, with mainly clear skies and highs ranging from the mid 50s to mid 60s.
This will begin to bring in some warmer air today, aiding the sunshine in boosting temperatures.
1036 PM CST Mon Nov 22 2021 Currently aloft, a trough is digging into the northeastern U. , with northwest flow along the backside of the trough over the Midwest. This cloud cover and sustained cold air advection behind last night's cold front has kept temperatures running about 10 degrees below climatological norms this afternoon. Also overnight, upper-level ridging will build into the Midwest and high pressure over the Middle Mississippi Valley will shift eastward, returning southerly/southwesterly flow to the CWA. In turn, warmer air will be advected into the CWA tomorrow, allowing for temperatures to rebound to or just above climatological normals under mostly sunny skies.
/28/ High pressure ridge over the region will keep the weather quiet in the overnight. High pressure ridging is building across the area this afternoon and this will continue through the period. A cold night is on tap with lows ranging from around freezing in the Golden Triangle area to the mid 30s in the south. Surface and upper ridging will continue on Tuesday, with mainly clear skies and highs ranging from the mid 50s to mid 60s.
High pressure over our region will bring plenty of sunshine today. Highs will range from the mid 40s in the evv tri-state area to the lower 50s in the Ozark foothills.
247 AM CST Tue Nov 23 2021 An upper level ridge axis has shifted to the east of the forecast, being quickly replaced by southwesterly flow aloft downstream from an upper level short wave trough located off the coast of Baja California. Warm advection on the increased southerly component to the low level flow will result in further warming today with temperatures expected to climb into the 70s areawide. Positively tilted upper troughing will begin pushing into the central US by late tomorrow evening. This will push a cold front through the region before midnight tomorrow night.