Aikyam-Lab/Synoptic-Bench huggingface dataset:
217 AM CST Tue Mar 2 2021 216 AM CST After yesterday's blustery and colder conditions, we'll turn a bit milder today as southwesterly winds return with surface ridging departing to our east. Increased low-level flow at the northern flanks of the departing ridge will support the development of gusty winds later this morning and afternoon, perhaps towards 30-35 mph across northern Illinois, easing somewhat with southward extent. Otherwise, the only item of note during the short term forecast is the potential for a lake-enhanced cold front to approach or even move through a portion of the region on Wednesday. A good portion of our available hires guidance is now suggesting quick saturation of the low-levels will take place through Wednesday morning and afternoon with this boundary surging down the lake and into northwest Indiana and northeast Illinois by early afternoon.
The first being tonight into Wednesday with a cold front dropping south through the area.
High pressure will build across the region through Tuesday. A weak trough will pass on Wednesday with another high building in for the latter part of the week. High pressure will build into the area overnight with mostly clear skies expected. High pressure will extend across the area on Tuesday and then get pinched off between a trough dropping through the Great Lakes and a low passing across the southern states. Southwesterly winds at the surface during the day will usher in some warmer air, allowing temps to climb into the 50s.
The lower conditions there will move back onshore in some locations, including North Bend tonight, with clearing to VFR again Tuesday morning.
1213 AM CST Tue Mar 2 2021 VFR with upper level high pressure moving towards the area and dry air all levels. /issued 305 PM CST Mon Mar 1 2021/ Upper level system responsible for today's light precipitation will move into the ArkLaTex leaving west Texas under the influence of a flat ridge. High pressure, developing over SE NM will move southeast allowing winds across the area to become light and variable late this evening. Temperatures will warm into the upper 60s to low 70s by Wednesday as upper ridging moves overhead. The rise in temps will be aided by southwesterly surface winds responding to a surface lee trough.
308 AM EST Tue Mar 2 2021 A progressive closed upper low is spinning east over Oklahoma early this morning and will continue across Arkansas and the Tennessee Valley today and tonight. Additional high clouds are expected across southern KY this evening into tonight as the upper low crosses to our south.
251 AM EST Tue Mar 2 2021 Canadian high pressure builds in from the north through Tuesday. Low pressure tracks off the Carolina coast Wednesday. High pressure returns later in the week. High pressure continues to build in from the NW Tuesday morning and then becomes centered over the area by Tuesday afternoon. Mostly sunny with highs ranging from the low to mid 40s E, to upper 40s/around 50F W Tuesday. High pressure slides offshore Tuesday night as an upper trough trundles across the southern Appalachians. Forecast lows range from the mid/upper 20s N/NW to the lows 30s SE, although temperatures may begin to increase across the S once high clouds arrive. Forecast highs range from the low 50s S, to the mid/upper 50s N.
1245 AM EST Tue Mar 2 2021 A cold front will stall just south of the area tonight and early Tuesday then return northward as a significant rain maker late Tuesday into Wednesday.
Mostly clear skies will continue into tonight, with clouds likely increasing from the north behind a cold front that will drop through the area overnight. A few models are bringing northeast winds near Lake Michigan by the afternoon tomorrow, which would result in cooler temps in the east.
435 AM CST Tue Mar 2 2021 Showers and a few tstorms on tap this morning as an upper level low moves east over the region.
Plenty of sunshine and decreasing winds expected thanks to building high pressure from the Ohio Valley.
402 AM CST Tue Mar 2 2021 Weak upper level ridging will develop across the high plains today and persist through Wednesday.
1000 AM EST Tue Mar 2 2021 High pressure over the Great Lakes will build overhead through tonight. Low pressure will pass well to the south Wednesday. A reinforcing cold front will cross the area Wednesday night.
309 AM CST Tue Mar 2 2021 An upper level low pressure system will move over the Mid-South today. With the ground remaining saturated across the area, fog may be a concern later tonight as clouds begin to clear behind the departing upper level low pressure system. Have put mention of patchy fog or freezing fog in the forecast for now for portions of West Tennessee after midnight where the winds will likely go calm. Lows will be in the lower to mid 30s.
Temperatures rise quickly this morning as the warmer air aloft mixes to the surface in a well mixed boundary layer. Fire weather conditions will be at near-critical levels across mostly all of western and north central Nebraska both ahead and behind the southeastward advancing weak cold front.
Even as stratus breaks up this afternoon, models show a stubborn layer of saturation around 700 mb that should keep the eastern half of the CWA mostly cloudy and cooler than points farther west. Breezy northerly winds will relax later today as surface ridging draws closer while prepping the stage for a chilly night under mostly clear skies.
Warmer conditions and lighter winds are forecast on Tuesday.
610 AM EST Tue Mar 2 2021 High pressure will quickly build across the region today, then a storm system will move across the Gulf Coast and Southeast late tonight into Wednesday.
559 AM CST Tue Mar 2 2021 Wind speeds have increased across the Buffalo Ridge early this morning with sites along the SD/MN border gusting to 40 to 50 mph. Winds take on a more westerly component and subside some by this evening before becoming light and variable overnight as high pressure builds in from the north. We'll see highs continue to reach a bit warmer each day to the weekend as snowpack dwindles under mostly sunny skies.
This will be conducive for a warming trend w/ more appropriate spring-like T's Wed afternoon, w/ readings topping out in the low to mid-60s, and lows Wed night dipping back down to the upper 30s at most locations.
Rain is spreading across the area this morning out ahead of an upper low, that is centered over eastern Oklahoma. As the low approaches, the rain will increase in intensity later this morning and continue through much of the day. The heaviest rainfall amounts will be along the Highway 84 corridor. The upper low will move across north Mississippi later this afternoon into the evening hours, with the rain ending from west to east during this period.
Well we finally have a completely dry forecast for today and tonight with an upper low passing well to our south.
359 AM MST Tue Mar 2 2021 High pressure continues to build into the region with warm temperatures expected today, after a chilly start over much of the forecast area. Highs for today should be anywhere from 10 to 15 degrees warmer than what they were yesterday, with 20s to 30s over the mountains, with mid 40s to lower 50s for the higher mountain valleys and Teller County, and upper 50s to mid 60s over the plains. Radiational cooling along with clear skies and light winds will give way to another cool night, with some areas in the high valleys falling to lows around 0F once again. Otherwise, low temps will generally be around or slightly above average over the plains, and around to a little below average in the high valleys.
/issued 309 AM CST Tue Mar 2 2021/ An upper level low pressure system will move over the Mid-South today. With the ground remaining saturated across the area, fog may be a concern later tonight as clouds begin to clear behind the departing upper level low pressure system. Have put mention of patchy fog or freezing fog in the forecast for now for portions of West Tennessee after midnight where the winds will likely go calm. Lows will be in the lower to mid 30s.
Forecast soundings show good mixing across the area with temperatures warming in the low to mid 60s for this afternoon.
That said, continued to go on the warmer side of guidance this afternoon with highs across the north. Therefore, expect temps to rebound on Wednesday across central SD as upper ridging builds further into the northern Plains. The warmer temperatures and breezy northwest winds this afternoon will result in high to very high fire danger across north central SD.
307 AM MST Tue Mar 2 2021 Overview: An upper level ridge. A cut-off upper low in the eastern Pacific -- presently located ~600 miles west of San Francisco CA -- will meander southward (Today-Tonight), then track decidedly eastward (courtesy of a strengthening westerly STJ) to the southern CA coast (Wed) and into the Intermountain West (Wed night). as the aforementioned upper ridge flattens /height gradient tightens/ in advance of the upper level low progressing ashore the southern Pacific coast.
A passing low pressure will cross Ontario bringing a decent amount of southwest wind to the Northland today - especially on Lake Superior. Soundings indicate anything that does fall may fall as either fzdz or dz as temperatures will be hovering around freezing with little to no ice expected in the clouds as WAA is prevalent.
The main westerlies will amplify during the middle to latter part of the work week, with troughing near the coasts and ridging across the Canadian Prairies. Some flattening and eastward progression of the ridge is likely late in the period as energy ejects northeast out of the western trough. Given the position of the forecast area under the main westerlies and downstream from the ridge position, little if any precipitation of consequence is expected. and Wednesday The forecast area will be between a cold Canadian anticyclone departing off to the southeast and a cyclone migrating east across southern Canada. Since the forecast was pushed toward the warmer ECMWF temperatures for highs, it seemed reasonable to nudge gusts up toward the higher values as well.
Upper level high pressure across the Rockies will move over the southern high plains later today, then flatten (briefly) tonight. This will lead to low-end southwesterly breezes mostly under 20 mph with temperatures climbing towards latest (warmer) guidance numbers in the 60s along with full sunshine.
537 AM CST Tue Mar 2 2021 Modest westerly flow aloft will develop across the Plains the next couple days as upstream ridge amplifies over the Rockies ahead of a vigorous upper low approaching California. Warmer southwesterly low level flow today will send temperatures above 60F across the area with the warmest and driest air across central Kansas.
A storm system that tracks eastward across southern California Wednesday will bring a slight chance of light precipitation to the Kern county mountains and over the higher elevation of the Sierra.
525 AM MST Tue Mar 2 2021 Not a cloud in the sky early this morning as high pressure remains in control. The mid- level ridge responsible for our recent dry and sunny weather will begin to break down and slowly slide eastward into the Plains tonight into Wednesday. Ahead of this low, increasing southwest flow will usher in warmer air and result in surface temperatures on Wednesday that are several degrees higher than today. Clouds and moisture will then be on the increase late in the day as the mid-level closed low continues to trek northeast into the southern Great Basin. By Wednesday night, dynamical forcing associated with the closed low will become quite strong as broad difluence coupled with the left exit region of a 125kt upper jet will maximize lift over eastern Utah and western Colorado.
Short term (Today and Wednesday): Expansive upper level ridging over the southern Gulf of Mexico will continue to erode along it's northern periphery as compact closed low shifts eastward across the southern Plains today.
Satellite imagery this morning was showing a pattern resembling an omega block over the CONUS with an anchoring trough off the west coast and the other over the central Plains. At the surface, high pressure was centered over northern Il with backside southerly flow into the central Plains. Models are in good agreement that quite pleasant conditions with above normal highs will prevail the rest of this week and through this weekend as upper ridging remains in control.
As the upper level cyclone exits to the east Tuesday, a ridge shifts eastwards and expands into the region.
High pressure will hold for one more day providing the region with warmer temperatures under mostly clear skies.
420 AM CST Tue Mar 2 2021 Wind speeds have increased across the Buffalo Ridge early this morning with sites along the SD/MN border gusting to 40 to 50 mph. Winds take on a more westerly component and subside some by this evening before becoming light and variable overnight as high pressure builds in from the north. We'll see highs continue to reach a bit warmer each day to the weekend as snowpack dwindles under mostly sunny skies.
520 AM EST Tue Mar 2 2021 High pressure over the Great Lakes will build overhead through tonight. Low pressure will pass well to the south Wednesday. A reinforcing cold front will cross the area Wednesday night.
749 AM EST Tue Mar 2 2021 Dry weather can be expected through the week as high pressure remains in control. The 850mb thermal trough will depart through the day, but high temperatures will still end up around 5 degrees below normal despite the sun. Isolated to scattered light snow will be possible along and behind the front with minimal accumulation possible north of I-80 and in the ridges.
Highs today will be in the lower 60s with lows tonight in the 30s.
A ridge of 500mb was noted over the Rockies into the Northern Plains with a closed low off the West Coast, a small closed low over Oklahoma and northern Texas, and another closed low over the northeast U.
Afternoon highs will range from the low 70s to low 80s north/south today and Wednesday.
A progressive closed upper low is spinning east over Oklahoma early this morning and will continue across Arkansas and the Tennessee Valley today and tonight. Additional high clouds are expected across southern KY this evening into tonight as the upper low crosses to our south.
As a disturbance exits eastward across the southeast US this morning, upper level flow will become zonal before a stronger ridge slides quickly overhead before a disturbance for mid/late week. Gradient southwesterly winds ahead of this trough could reach speeds of 15 to 20 mph and gusts up to 25 to 30 mph. Will the lowest RH values reach into the southern tier of NE counties and 2.
445 AM EST Tue Mar 2 2021 Deep layer ridging has remained in place overnight, allowing temperatures to remain in the mid 70s. We will remain under the influence of an area of high pressure, located south of Bermuda, until Wednesday. A cold front, currently draped across the Florida Panhandle, will slowly trek south to the Florida Keys.
519 AM CST Tue Mar 2 2021 216 AM CST After yesterday's blustery and colder conditions, we'll turn a bit milder today as southwesterly winds return with surface ridging departing to our east. Increased low-level flow at the northern flanks of the departing ridge will support the development of gusty winds later this morning and afternoon, perhaps towards 30-35 mph across northern Illinois, easing somewhat with southward extent. Otherwise, the only item of note during the short term forecast is the potential for a lake-enhanced cold front to approach or even move through a portion of the region on Wednesday. A good portion of our available hires guidance is now suggesting quick saturation of the low-levels will take place through Wednesday morning and afternoon with this boundary surging down the lake and into northwest Indiana and northeast Illinois by early afternoon.
SHORT TERM (Now through Wednesday): Light precipitation is currently spreading over the central and eastern inland portions of the BRO CWFA and adjacent coastal waters with a cold front positioned over the western Gulf of Mexico.
Winds slacken tonight while veering more NE as high pressure edges closer. Even as stratus breaks up this afternoon, models show a stubborn layer of saturation around 700 mb that should keep the eastern half of the CWA mostly cloudy and cooler than points farther west. Breezy northerly winds will relax later today as surface ridging draws closer while prepping the stage for a chilly night under mostly clear skies.
648 AM EST Tue Mar 2 2021 High pressure over northwest Ohio early this morning will move eastward to the Mid Atlantic Coast by this evening. Weakening low pressure will track southeastward across Ontario Tuesday night into Wednesday with its cold front crossing the region Wednesday afternoon.
/issued 435 AM CST Tue Mar 2 2021/ Showers and a few tstorms on tap this morning as an upper level low moves east over the region.
/issued 323 AM CST Tue Mar 2 2021/ SHORT TERM (Now through Wednesday): Light precipitation is currently spreading over the central and eastern inland portions of the BRO CWFA and adjacent coastal waters with a cold front positioned over the western Gulf of Mexico.
350 AM MST Tue Mar 2 2021 For today the axis of the ridge continues to shift over the state with increasing westerly flow aloft through the morning hours. Cross barrier flow increases with a weak stable layer in place allowing for some increased gusting up to 30 mph over the eastern slopes of the higher elevations through the morning hours.
Fair conditions and warming temperatures are expected through Wednesday with high pressure over the region. A quick burst of light showers mainly across White Pine county is expected Wednesday night as a low pressure system moves across the Southwest U.
This feature will mainly introduce increased clouds, though some weak showers are likely, especially through the higher terrain of central Idaho into west- central Montana. Breezy west winds are also anticipated, especially through the higher terrain.
434 AM EST Tue Mar 2 2021 High pressure over the Great Lakes will build overhead through tonight. Low pressure will pass well to the south Wednesday. A reinforcing cold front will cross the area Wednesday night.
321 AM PST Tue Mar 2 2021 A pretty quiet and benign weather pattern will continue from today into Wednesday with a broad area of high pressure across the region. Because of the high dewpoint depression and lack of fog in the MOS bulletins, we have low confidence in fog formation over the inland valleys this morning. As for the rest of today and Wednesday, an upper level low will continue to move south.
419 AM MST Tue Mar 2 2021 High pressure will continue to build over the area through midweek yielding dry and warming conditions.
Weak upper level ridging will develop across the high plains today and persist through Wednesday.
513 AM CST Tue Mar 2 2021 Dry and VFR with upper level high pressure building into the area today and tonight. Upper level high pressure across the Rockies will move over the southern high plains later today, then flatten (briefly) tonight. This will lead to low-end southwesterly breezes mostly under 20 mph with temperatures climbing towards latest (warmer) guidance numbers in the 60s along with full sunshine.
Today through Wednesday night An upper ridge will prevail across the Panhandles today through Wednesday and Wednesday night providing the forecast area with warmer and continued dry conditions today through Wednesday night.
Upper level ridging will begin to build into the area keeping away any additional showers for now.
Did lower the highs just a touch, given the slightly cooler trace to the observations, compared to forecast.
236 PM EST Tue Mar 2 2021 A stalled front to the south will return northward as a warm front and provide rain late today into Wednesday. Dry and cool weather moves in for the remainder of week has high pressure builds in.
High pressure is expected across the area through the upcoming weekend. Operational and ensemble model data continue to indicate long wave ridging will develop over the middle of the country during this period.
247 PM EST Tue Mar 2 2021 High pressure will continue to move east through this evening. A low pressure system will move southeast across Ontario Tuesday night into Wednesday, extending a cold front south across the area late Wednesday.
Issued by National Weather Service Raleigh NC 345 PM EST Tue Mar 2 2021 High pressure over the Mid Atlantic coast will move offshore through tonight, while low pressure crosses the Gulf Coast and Southeast states through Wednesday.
A passing low pressure will cross Ontario bringing a decent amount of southwest wind to the Northland today - especially on Lake Superior. Soundings indicate anything that does fall may fall as either fzdz or dz as temperatures will be hovering around freezing with little to no ice expected in the clouds as WAA is prevalent. VFR clouds will work across the region this afternoon in association with an area of low pressure passing to the north. A cold front will then swing through tonight and bring some MVFR cloud cover at HIB, INL, BRD and HYR.
1017 AM MST Tue Mar 2 2021 Not a cloud in the sky early this morning as high pressure remains in control. The mid- level ridge responsible for our recent dry and sunny weather will begin to break down and slowly slide eastward into the Plains tonight into Wednesday. Ahead of this low, increasing southwest flow will usher in warmer air and result in surface temperatures on Wednesday that are several degrees higher than today. Clouds and moisture will then be on the increase late in the day as the mid-level closed low continues to trek northeast into the southern Great Basin. By Wednesday night, dynamical forcing associated with the closed low will become quite strong as broad difluence coupled with the left exit region of a 125kt upper jet will maximize lift over eastern Utah and western Colorado.
Weak cold front passes on Wed as upper level pattern begins to amplify significantly with high amplitude ridge building over central NOAM and deep trough over the Quebec yielding several days of dry northerly flow locally. Latest guidance trended a bit faster/cooler in our north while southern zones still likely to climb well into the 50s before frontal passage. Continued to keep Thu-Sat on the cooler side of blended guidance given steady northerly flow but ample March sun and overall modest thermal profiles still suggest highs right around average for early March. Latest guidance is a little faster with approaching longwave ridge which indicates potential for WAA to begin Sun and really ramp up Mon-Tue. Winds then relax tomorrow morning as a cold front drops in toward the end of the TAF cycle.
150 PM MST Tue Mar 2 2021 Flat ridge over the area will provide tranquil weather the next 48 hours. The upper ridge will build back up Wednesday as an upper low moves into southern California. TWH Dry and warm conditions will prevail into the weekend, as high pressure builds into the region.
242 PM CST Tue Mar 2 2021 An upper level low was moving slowly eastward through AR this afternoon, but cloud cover associated with this feature was remaining south of our forecast area. A crystal clear sky and southwest winds were resulting in warmer highs this afternoon, about 5 to 10 degrees above normal.
This will bring moderating temps with Wednesday afternoon highs some 10 to 15 degrees warmer than Tuesday. By Wednesday afternoon, a trough will sag south into Pennsylvania, producing an increase in cloudiness in the northern tier and Laurels, but little else in the way of sensible weather. Latest ECENS and GEFS guidance support a deepening trough over the northeast through the upcoming weekend, with a trend toward increasingly below-average temperatures, breezy conditions, and mainly dry conditions for Pennsylvania.