Aikyam-Lab/Synoptic-Bench huggingface dataset:
Temperatures will still be several degrees above normal with most of the plains reaching the lower 80s. Colorado remains under a ridge of high pressure early this morning, but this will be shifting east of Colorado later today as upper level trof of low pressure digs into the Great Basin. Ahead of the trof, expect increasing high level moisture today as the flow turns more southwesterly. For tonight, the upper trof splits with much of the dynamic energy shifting south into the desert southwest while northern branch approaches Colorado and some increase in westerly flow over the mountains. For the extended, the upper level low will be in place over the desert SW.
This high will remain overhead this evening before shifting east after midnight tonight. Coolest temperatures tonight will be over the eastern Ozarks with lows in the middle 50s, while the southerly flow across the west will keep readings in the low to mid 60s for overnight lows.
A ridge situated across the southeast will continue to keep winds light and cloud cover limited into the night time hours. Morning lows will fall into the lower to middle 60's across the CWA except near the coast where lows will remain in the lower 70's.
Weak cold front moving across the area. Clearing conditions tomorrow will allow for sunny skies and max temps in the lower to mid 80s, which will be the coolest day of the whole forecast period. RH values will dip down into the low to mid 30s by tomorrow afternoon due to the drier air and warm temps.
317 PM EDT Mon Sep 23 2019 Water vapor imagery highlights mean-layer ridging over the northern Gulf Coast, bookended by two mid to upper-level lows, one over the Bay of Campeche, the other east of Florida. A broad area of weakening high pressure stretches west into the southeastern United States, maintaining fresh northeast to east breezes across the coastal waters of the Florida Keys.
Prefrontal trough in place will dissipate tonight. A fairly deep trough in the Northeast will drive a weak frontal boundary towards the area. The broad zonal flow will continue for a day or two before mid level ridging builds across the southeast. Prefrontal trough inland dissipates tonight but wind remains out of the SW over the waters as a weak ridge of high pressure remains off the coast.
High pressure and a dry airmass will remain in place across the area today. Skies will be mostly clear with afternoon high temperatures expected to reach the low to mid 90s across most of the area, except upper 80s along the coast.
329 PM EDT Mon Sep 23 2019 Updated at 300 PM EDT Mon Sep 23 2019 A sfc cold front is pushing south of the Ohio River this afternoon, with winds quickly veering northwesterly and stratus scattering out behind the front. Temperatures are forecast to drop into the low to mid 50s Tuesday morning, and would not be surprised to see a rural valley location dip into the upper 40s. Mostly sunny, low humidity, and highs in the lower 80s.
310 PM EDT Mon Sep 23 2019 Cold front exits early this evening.
1135 AM MDT Mon Sep 23 2019 08z surface analysis high retreating to the southeast and lee trough developing from central MT into eastern CO. Tuesday, upper trough splits as it moves eastward.
an upper level low pressure center is forecast to move southeast toward Las Vegas during the day then into Arizona during the night with southwest flow aloft over our area. High temperatures warm about 6F to 9F at 850mb supporting readings in the low to mid 80s under some high cloudiness. the forecast area is under northwest flow aloft as the low pressure center mentioned Monday dives south into northern Mexico. Low temperatures range from the mid 40s to low 50s in far eastern Colorado to the low to mid 50s east of the CO/KS border.
Upper ridging will build over the region today ushering in warmer temperatures in the upper 70s to around 80. Another upper trough and a sfc cold front will move through the plains on Tuesday.
Should be the warmest day of the upcoming work week, with highs in the low to mid 70s. A short wave and cold front will pass through the FA on Tuesday. This will bring showers and some embedded thunderstorms to the area along with slightly cooler temperatures. Continues to look like the better chances for rain with this system will be along and north of the highway 2 corridor.
Yesterday's cold front has essentially dissipated with no evidence of a surface temperature gradient today. The highest probabilities are along and east of I-35 and along and south of I-40.
Associated surface cold front will turn winds to northwest by Tuesday afternoon but with forcing too far north and moisture lacking not expecting any precipitation chances with the front.
144 PM CDT Mon Sep 23 2019 A few flat cumulus are a reminder of our wet ground conditions, we we are maintaining the lower to mid 50 dewpoints into the peak heating hours of the afternoon. Highs in the lower to mid 70s appear on target today, making for a very pleasant day. The high pressure will move east tonight, allowing winds to shift to the south, and with that, hopefully keeping the fog from being much of a problem tonight. Temperatures will still fall to the lower to mid 50s, as the air is dry, but with the wind increasing, this should not quite bottom out to below the crossover temperatures near 50. Clouds will increase late in the day, as the cold front approaches. A fast moving cold front will arrive Tuesday evening, mainly after sunset.
243 PM CDT Mon Sep 23 2019 Isolated to scattered showers will continue to develop just ahead of a weakening cold front currently stretching from the Ohio Valley southwest into northwestern Tennessee and northeastern Texas. Drier and cooler air look to advect into the area again behind this frontal boundary.
258 PM CDT Mon Sep 23 2019 A cold front currently stretches from near Nashville to Little Rock. High pressure will build into much of the Mid-South on Tuesday.
High pressure moves east of the area tonight and WAA will return to region. The better chance for storms will come tomorrow night as a upper level trough digs from the northern Plains into the Upper Midwest forcing a cold front towards the area. Storms that do develop north of the CWA tomorrow evening will move into the area ahead of the cold front as it moves southeast and, if the stronger storms can hold together, strong to perhaps a isolated severe wind gust may be possible.
230 PM EDT Mon Sep 23 2019 A weakening cold front/trough will move through the area late tonight. General high pressure and even warmer conditions are expected for the remainder of the week. Upper ridging will remain anchored over the Southeastern CONUS through tonight. A weak cold front currently extending through eastern Kentucky and Tennessee will move into the forecast area tonight.
/This Afternoon/ Convection continues as of mid-morning across McCurtain County OK, Sevier and Nrn Howard Counties in SW AR, along a persistent H850-700 theta-e axis/trough that lingers just N of the Red River of Srn OK, Wrn and Cntrl AR.
Early morning satellite imagery and surface observations are showing the cold front, that brought this past weekends wet weather, having swept into southeast Missouri, with much of the cloud cover going with it.
A cold front will move through the terminals this afternoon and evening.
136 PM EDT Mon Sep 23 2019 Clearing skies are expected late in the day today as cooler and drier air settles across the Great Lakes Region. Gusty northwest winds will decrease after sunset and fall-like temperatures are anticipated with lows in the lower 50s and highs in the middle 70s.
129 PM PDT Mon Sep 23 2019 An area of low pressure will move to the southeast of the area tonight as a ridge of high pressure builds in over Northern California and the Great Basin on Tuesday.
Mid/upper level ridging will hold over Florida through much of the week with an inverted trough/low drifting west toward the peninsula during the weekend.
A quiet evening is in store as the high slowly moves east overnight with lows expected to fall back to the upper 50s to low 60s. Throughout Tuesday, the mid-level ridge to our south will flatten as a trough moves across the western US and into the Northern and Central Plains. WAA will become more established with an increase in southerly flow helping to bring daytime temperatures back to the low to mid 80s along with an increase in humidity. A cold front associated with the trough will be the main focus for potential thunderstorm activity Tuesday night.
Tempo set at KFST beginning at 19z due to convection developing nearby prior to 18z, as well as guidance indicating the highest potential at TAF site. Upper ridge centered over the SE US this morning will stretch into W TX as an upper trough moves across the Great Basin today. This trough will develop into a cut off low that move across Srn CA overnight and into Mexico Tuesday.
241 PM EDT Mon Sep 23 2019 A cold front will move through the forecast area later today and this evening.
1209 PM EDT Mon Sep 23 2019 High pressure will prevail today. A weak cold front will move into the area Tuesday and then slowly dissipate through mid week. High pressure will then return this weekend.
155 PM EDT Mon Sep 23 2019 A cold front will bring showers to the region today.
The cold front has stalled across east central Oklahoma and it will start to lift back north tonight.
Visible imagery showing mainly shallow convective fields across the higher elevations but no precipitation expected.
355 PM EDT Mon Sep 23 2019 A cold front will move through the forecast area later today and this evening.
With increasing southwest winds ahead of approaching cold front, temperatures should warm nicely into the 70s. Medium Low level thermal ridge will be well entrenched with mid level energy focusing to our north.
230 PM CDT Mon Sep 23 2019 Tonight and Tuesday: While the mid levels will pretty much remain unchanged with sprawling ridge maintaining control, at the surface a cold front will move into northern portions tonight bringing a chance of light showers. Thus, the front looks to hang up along the Highway 82 corridor Tuesday with the majority of the convection out ahead over central sections.
1228 PM EDT Mon Sep 23 2019 A cold front will move through the forecast area later today and this evening.
WV imagery shows a flat, elongated ridge covering the srn CONUS/Mexico, but a closed upper trough is digging thru CA/NV, and forecast to set up shop over Baja del Norte by 18Z Tuesday. This all coincides with a rich, low-level theta-e ridge oriented almost zonally across the area. This activity will continue thru Tuesday as the closed trough digs south toward Baja. Thu afternoon, models are in good agreement in lifting and opening the trough and moving it to the Four Corners by 18Z Fri, after which it will phase back into SW flow aloft. A more westerly low-lvl wind component will push theta- e moisture east on Fri, providing for a relatively dry weekend as a secondary trough digs into the Rockies.
A deep and cold trough will set up over the Great Basin beginning late week. Morning water vapor and h5 analysis depict a split trough encroaching, with southern extent closing off over western Nevada attm. Late week trough remains on track, be it with uncertainty in details. Rising heights with a flopped over ridge will push south through Utah Tuesday.
223 PM CDT Mon Sep 23 2019 (Tonight and Tuesday) Water vapor satellite shows an upper low over southern Nevada quickly moving south. As we go into late this afternoon and evening, the low will become cut-off over the Desert Southwest, while a short- wave moves over the region in the subsequent southwest flow aloft, creating additional lift for showers/storms. High atmospheric moisture continues on Tuesday as the cut-off low settles over northern Baja California, while the flow aloft turns more zonal. Highs expected to be in the low 90s.
227 PM CDT Mon Sep 23 2019 Bubble high pressure system at the surface will build into the region tonight, bringing cooler and less humid air with it.
Incoming cold front will produce light and spotty showers across the area this afternoon and evening, along with a lowering cloud deck.
Otherwise, lee troughing will continue with a light southerly breeze through the short term period. A front will sink southward midweek and could bring us some cooler (more seasonable) temperatures.
246 PM MDT Mon Sep 23 2019 Latest analysis places an upper ridge over the forecast area with an upper trough over Montana and Idaho, extending to an upper low over Nevada. Dry weather is expected tonight with temperatures a little warmer than last night. The upper trough will split as it moves eastward on Tuesday. Band of 850-700mb frontogenesis will develop as another push of cooler air crosses the forecast area on Tuesday night, but moisture will be very limited.
High pressure ridge exiting to the southeast overnight allowing more southerly flow to develop ahead of next frontal system. May see some high clouds move in from the west ahead of the northern stream trough. The front exits to the east around 06z Wed, with cooler and drier air working into the area late.
Upper ridging will build over the region today ushering in warmer temepratures in the upper 70s to around 80. Another upper trough and a sfc cold front will move through the plains on Tuesday.
211 PM CDT Mon Sep 23 2019 Deep upper trough to our west will continue to move down the West Coast today before stalling over SOCAL and southern AZ tomorrow. South to southwesterly flow ahead of the upper trough will continue to advect moisture into the area.
/issued 1135 AM CDT Mon Sep 23 2019/ A band of showers ahead of a cold front currently stretches along the I-40 corridor. Thanks to a clouds, scattered showers and a weak cold front, afternoon temps will only average slightly warmer than normal. 4 AM CDT surface analysis showed a cold front extending from southeast MO to west central AR. The aforementioned jet streak lift out with the exit of a closed low over the eastern Great Lakes by late afternoon. Across the Midsouth, the southward movement of the cold front will slow, eventually stalling over central MS tonight. Moist air south of the front will lift north Tuesday night, in advance of a broad longwave trof lifting across the plains and mid MS River valley.
Scattered showers and thunderstorms are expected to continue in the vicinity of this fading boundary Tonight as the low level jet increases.
A cold front was pushing through south central Missouri early this morning with some scattered showers remaining along the front. High pressure will slide off to the east tonight with winds turning back to the southeast late in the night. Right now it looks like locations southwest of Springfield will have the highest chances.
313 PM EDT Mon Sep 23 2019 A weak cold front will move into the area Tuesday and then slowly dissipate through mid week. High pressure will then return this weekend. A powerful upper low over southern Ontario will approach New England tonight. The front looks to remain north of the local area through daybreak as high pressure sinks to the south across the northern Gulf States. Lows are expected to fall into the lower 60s inland, mid-upper 60s at the coast to the lower 70s at the beaches.
Satellite imagery showing mostly clear skies this morning with little evidence of the upper trough that moved through last night.
1135 AM CDT Mon Sep 23 2019 A band of showers ahead of a cold front currently stretches along the I-40 corridor. Thanks to a clouds, scattered showers and a weak cold front, afternoon temps will only average slightly warmer than normal. 4 AM CDT surface analysis showed a cold front extending from southeast MO to west central AR. The aforementioned jet streak lift out with the exit of a closed low over the eastern Great Lakes by late afternoon. Across the Midsouth, the southward movement of the cold front will slow, eventually stalling over central MS tonight. Moist air south of the front will lift north Tuesday night, in advance of a broad longwave trof lifting across the plains and mid MS River valley.
The deep moisture plume that has been wrapping around the periphery of a deeply stacked area of high pressure extending from Louisiana east to the eastern seaboard.
Lows tonight will bottom out in the lower to upper 70s. The upper ridge should break down a bit tomorrow, with an upper trough passing to our north. This should allow for that activity a bit more inland, and highs tomorrow 2-3 degrees cooler than today. Some of the high- res models are showing isolated locations in the Coastal Plains at close to an inch of rain from the heavier activity.
Focus then shifts to tomorrow as a cold front sweeps across the region. Still cannot rule out damaging winds and an isolated tornado or two, but nearly unidirectional shear in the lowest kilometer limits overall threat.
303 PM CDT Mon Sep 23 2019 High pressure was the domainate weather feature on Monday, keeping skies mostly sunny. Winds are expected to shift back to the south on Tuesday, bringing warmer temperatures back, with highs in the upper 70s.
Meanwhile, a large area of high pressure was in control over the central CONUS. Models prog the upper Canadian system to slide from Saskatchewan into Manitoba tonight while associated cold front sweeps across the norther Plains.
In the meantime, upper level trough will slide to the east into the Great Lakes region, dragging a cold front towards the forecast area.
Cold front will precede the trough across the region, roughly bisecting the local forecast area around 06z Wed. Warmer, more moist airmass will pool ahead of the front (upper 70s- 80 temps, low/mid 60s Tds) with resulting MUCAPES 1500-2500 J/kg. Will need the lift of the cold front to kick off showers/storms. Bufkit soundings do suggest enough erosion of the warm layer for a small window for sfc based storms in the vicinity of the cold front.
156 PM EDT Mon Sep 23 2019 A cold front will push east of the area this afternoon. High pressure will build in tonight through Tuesday providing cooler and dry weather. Cold front is just passing I-71 and will continue through the remainder of the area through the afternoon. This drier and cooler airmass will offer temperatures close to normal. Expect lows generally in the lower and middle 50s tonight. The high will build across the area Tuesday with abundant sunshine and comfortable temperatures in the mid and upper 70s.
On Tuesday, clouds will increase with the cold front along with some light showers possibly developing and moving east across our northern cwa. The increasing cloud cover on Tuesday along with the wind shift to caa with the cold front, highs will be affected mainly across the north central cwa. The winds will fall off and skies will clear Tuesday night as the cold front moves east and drier air moves in.
Warmer temperatures will be returning to southwest Kansas today.
The upper high pressure system over the southeast conus will shift further south as an upper trough with an embedded low pressure area over the Great Lakes region moves eastward, followed by a much larger upper trough digging southeast over south central Canada and the northern Great Plains. The center of the upper high over southeast Mississippi/southwest Alabama will become centered over the northeast Gulf of Mexico by late Tuesday afternoon.
702 PM CDT Mon Sep 23 2019 The cold front continues to be draped across central and southern Arkansas.
1035 PM EDT Mon Sep 23 2019 Currently - High pressure over the southeastern United States continues to provide moderate to fresh northeast to east breezes across the Keys and surrounding waters. Short Term Update - Winds will continue to relax overnight as the ridge to our north weakens further. Rain chances will near zero, quite unusual for this time of year due to the relatively dry conditions, background ridging and associated inhibition. High pressure to our north will continue to weaken overnight. East-northeast winds will prevail, but continue to decrease in intensity as the southeastern US ridge is eroded and the pressure gradient weakens.
Model guidance unanimously shows favorable upslope flow in the low levels through the overnight hours however, with a cold front moving through the after midnight. Chattanooga Airport, TN 67 87 61 89 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 64 85 58 86 / 10 0 0 0 Oak Ridge, TN 63 84 57 86 / 10 0 0 0 Tri Cities Airport, TN 59 81 51 84 / 20 0 0 0.
With skies clearing across northeast WI early this evening, low temps to range from the middle 40s over the northwoods to the low 50s over the Fox Valley and Lakeshore. Warmer air will invade the region from the west ahead of a cold front, which will push into the northern Mississippi Valley by late in the afternoon. Progged soundings indicate some shallow fair weather cu could pop by late morning as this warmer/more moist air arrives from the west. It will be warmer with a breezy southwest wind, with highs ranging from the middle to upper 70s at most locations away from Lake Michigan. Tuesday Night Through Monday A cold front will bring showers and thunderstorms to the area on Tuesday night.
544 PM EDT Mon Sep 23 2019 A cold front will move through the forecast area later today and this evening.
Eastern Pacific high pressure ridge is extending into Oregon as an upper level wave exits to the southeast.
Isolated to scattered showers will continue to develop just ahead of a weakening cold front currently stretching from the Ohio Valley southwest into northwestern Tennessee and northeastern Texas. Drier and cooler air look to advect into the area again behind this frontal boundary.
Chilly air over warmer water may allow for some additional river valley fog over the rest of the region, so decided to add in patchy wording. Updated at 300 PM EDT Mon Sep 23 2019 A sfc cold front is pushing south of the Ohio River this afternoon, with winds quickly veering northwesterly and stratus scattering out behind the front. Temperatures are forecast to drop into the low to mid 50s Tuesday morning, and would not be surprised to see a rural valley location dip into the upper 40s. Mostly sunny, low humidity, and highs in the lower 80s.
733 PM EDT Mon Sep 23 2019 A weak cold front will move into the area Tuesday and then slowly dissipate through mid week. High pressure will then return this weekend. Early this evening: Dry high pressure will prevail across the forecast area ahead of a cold front poised to approach from the northwest overnight.
Bubble high pressure system at the surface will build into the region tonight, bringing cooler and less humid air with it.
838 PM EDT Mon Sep 23 2019 Dry stable conditions associated with deep layered ridging over the area will maintain pleasant dry conditions across the entire forecast area the remainder of the night under mostly clear skies. Temperatures will be comfortable with overnight lows in the lower 60s across the Nature Coast and mid to upper 60s central and south. High pressure to the northeast of the waters will maintain northeast to east winds in the 10 to 15 knot range with seas of 2 to 3 feet over the Gulf waters the remainder of tonight.
/issued 258 PM CDT Mon Sep 23 2019/ A cold front currently stretches from near Nashville to Little Rock. High pressure will build into much of the Mid-South on Tuesday.
849 PM EDT Mon Sep 23 2019 A cold front will move through the forecast area later today and this evening.
1011 PM EDT Mon Sep 23 2019 A weak cold front will move into the area Tuesday and then slowly dissipate through mid week. High pressure will then return this weekend. Late this evening: Dry high pressure will prevail across the forecast area ahead of a cold front poised to approach from the northwest overnight.
610 PM CDT Mon Sep 23 2019 High pressure was the dominant weather feature on Monday, keeping skies mostly sunny. Winds are expected to shift back to the south on Tuesday, bringing warmer temperatures back, with highs in the upper 70s.