Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Today through Thursday) The cold front is now entering NW Alabama, well behind the squall-line that is associated with the line of showers and storms. Dry and cold tonight, with freezing temperatures across much of the area. High pressure quickly builds in Thursday with dry conditions expected through the day.
710 AM EST Wed Nov 30 2022 Gusty winds and showers will accompany a cold front today. The area will be in the warm sector for much of the morning, before a cold front pushes through late this morning. As a result, snow showers will likely continue in the ridges and northwest PA. Thursday will remain mostly clear with building high pressure, though some clouds may linger to the north with lake moisture.
519 AM CST Wed Nov 30 2022 Key Messages: - Cooler today with near normal temperatures returning Thursday.
300 AM PST Wed Nov 30 2022 Cool and dry weather continues today with near freezing minimum temperatures in the Central Valley today.
555 AM EST Wed Nov 30 2022 Aviation -- Windy With Lake Effect Snow Showers Today -- The well anticipated cold front has cleared the area and cold air advection will rule until late this evening. We will also be in the core of the upper level low with the cyclonicly curved jet to our south, until the wave rapidly departs and ridging and subsidence shut down lake effect overnight.
601 AM CST Wed Nov 30 2022 (Today through Thursday) The cold front is now entering NW Alabama, well behind the squall-line that is associated with the line of showers and storms. Dry and cold tonight, with freezing temperatures across much of the area. High pressure quickly builds in Thursday with dry conditions expected through the day.
For today, a relatively chilly day behind cold frontal passage from yesterday as high temperatures are forecasted in the upper 30s to low 40s across the area under sunny skies. Breezy winds continue overnight and into Thursday morning which helps keep overnight temperatures a bit warmer than tonight with lows ranging from the teens to mid 20s across the area as some mid to high clouds move across the area. Warming temperatures are expected on Thursday as highs reach the mid 50s to low 60s across the area underneath upper level ridging.
626 AM EST Wed Nov 30 2022 Showers and thunderstorms are expected across the area today as a cold front crosses the region. Cooler and dry conditions finish out the week before a warming pattern sets in for the weekend. A cold front is entering the region bringing increased moisture over the area and widespread showers. The tight pressure gradient will produce breezy winds overnight and will usher in some cooler, drier air. Temperatures will quickly lower after midnight and lows will be in the in the low 30s north and west of I-20, upper 30s south and east. Dry high pressure builds in across the area through Thursday night, bringing cooler temperatures across the cwa.
(Today and tonight) Cold front has moved across the area this morning with gusty north winds extending all the way south of Interstate 10. Cold advection continues with temperatures falling to near freezing across the Big Country.
(Today and tonight) The cold front that moved across Oklahoma and northern Texas yesterday, will continue to push southward into deep South Texas and the western Gulf.
516 AM CST Wed Nov 30 2022 (Today and tonight) The cold front that moved across Oklahoma and northern Texas yesterday, will continue to push southward into deep South Texas and the western Gulf.
500 AM CST Wed Nov 30 2022 Today through tonight: A cold front will push east of the area early this morning bringing an end to the threat for storms/heavy rainfall. Strong post-frontal subsidence will quickly clear skies and bring gusty NNW wind along with much cooler temperatures. Expect daytime temperatures to struggle to warm up much from this morning in the cold advection pattern, and lows tonight will drop to near or just below freezing for most of the area under mostly clear skies with light wind.
817 AM EST Wed Nov 30 2022 Gusty winds and showers with a cold frontal passage today will be followed by isolated snow showers in northwest PA and higher elevations overnight.
Water vapor imagery shows a closed upper level low along the Manitoba/Minnesota border early this morning with todays strong cold front having moved into Michigan and Indiana then curving southwestward into southern Arkansas and northern Texas as high pressure builds into the Plains.
315 AM CST Wed Nov 30 2022 Below normal highs are expected today behind the trough that brought cold air to the region and light snow to portions of central Kansas.
356 AM MST Wed Nov 30 2022 Current surface map places high pressure across eastern Montana into western South Dakota. Upper trough over the Upper Midwest continues to move east today as next upper trough digs into the Pacific Northwest. Flat upper ridge will bring warmer temperatures to the area today and Thursday, with low level thermal profiles peaking Thursday afternoon.
Warmer and breezy today with partly cloudy to cloudy skies. Winds and some clouds will make for warmer low temperatures tonight, mainly in the mid teens through the 20's, with some lower 30's in warmest valleys. The next trof is going to move through the state on Thursday and Thursday night.
535 AM CST Wed Nov 30 2022 Below normal highs are expected today behind the trough that brought cold air to the region and light snow to portions of central Kansas.
257 AM MST Wed Nov 30 2022 Slightly warmer today and the rest of the week, before an approaching weather system brings some moisture into Southeastern Arizona this weekend. Southwesterly surface winds today in concert with rising heights will usher in some warmer temperatures across SW AZ the rest of the work week. Tucson topped out at 69 degrees today, and we will likely see highs in the mid 70s today, and even warmer on Thursday. Upper level pattern reveals a 500 mb trough digging off the NW US coast.
636 AM EST Wed Nov 30 2022 High pressure ridges southwest through the western Atlantic, across Florida and into the Gulf of Mexico producing partly cloudy skies for the first half of the day. An area of low pressure moves through the Great Lakes with the associated cold front extending south through the Mississippi River Valley. This front will push through Florida later today bringing increasing cloudiness, scattered showers and an isolated storm or two, with the highest chances over the Nature Coast. Broad high pressure builds in over the southeast U.
Winds aren't really penetrating into the lowlands at all though, even the more wind-prone spots such as the Rocky Flats area. They should weaken some during the day over the high country, but still could be enough for a few spots with blowing snow on the roads. Highs should rise back to the 40s and 50s across the plains and 30s and 40s in the high country.
Cold today, warmer tomorrow. Mesoanalysis shows the cold front has crossed the Pecos and is now butting up against the higher terrain.
505 AM CST Wed Nov 30 2022 (Today and tonight) Surface ridging around 1032mb was settling into the region early this morning leading to colder temperatures than what we have observed the past several mornings. However, this ridge will quickly slide to the east this afternoon returning surface winds to a southerly direction. At the same time, short wave ridging will move overhead and will rapidly exit with a short wave trough approaching this evening through the early morning hours on Thursday.
The cold front seems to have just passed through CKV based on the winds. Temperatures will also fall behind the front and it will only be in the lower to middle 40s by the afternoon hours. (Thursday Night through next Wednesday) The forecast area seems to be in a pattern where high pressure builds in then a frontal passage bringing rainfall.
(Rest of Today) A cold front has shifted southeast of the I-59 corridor this morning allowing gusty northwest flow and cold advection to arrive.
Dry and cool high pressure will continue to move into Middle Tennessee with northwest winds. Some gusts around 25mph will continue through lunchtime, then gusts will diminish through the afternoon as the center of the high pressure moves closer. The cold front seems to have just passed through CKV based on the winds. Temperatures will also fall behind the front and it will only be in the lower to middle 40s by the afternoon hours. (Thursday Night through next Wednesday) The forecast area seems to be in a pattern where high pressure builds in then a frontal passage bringing rainfall.
1119 AM CST Wed Nov 30 2022 (Today and tonight) The cold front that moved across Oklahoma and northern Texas yesterday, will continue to push southward into deep South Texas and the western Gulf.
145 PM EST Wed Nov 30 2022 Gusty winds and showers with a cold frontal passage today will be followed by isolated snow showers in northwest PA and higher elevations overnight.
1119 AM CST Wed Nov 30 2022 Key Messages: - Cooler today with near normal temperatures returning Thursday.
The latest surface analysis places a 982 mb low over Quebec with an attendant cold front extending southward through Pittsburgh, Pennsylvania and down along Appalachia and southwest back into New Orleans. A cold night will ensue, with sub-freezing temperatures arriving across much of the area by the midnight hour.
1229 PM EST Wed Nov 30 2022 Improving conditions this afternoon as a cold front moves through the region. Cooler and dry conditions finish out the week before a warming pattern sets in for the weekend. A cold front is entering the region bringing increased moisture and cloud cover to the area. A bit of a pressure gradient will keep winds elevated overnight, with a much cooler airmass settling in. Temperatures will quickly fall after midnight and lows will be in the in the low 30s north and west of I-20, upper 30s south and east. Dry high pressure builds in across the area through Thursday night, bringing cooler temperatures across the cwa.
144 PM MST Wed Nov 30 2022 This evening through the overnight hours a weak disturbance aloft is expected to travel across the Rockies and over the area, strengthening the lee trough along the Front Range.
1055 AM MST Wed Nov 30 2022 No updates for this package as the forecast remains on track for dry conditions and gusty conditions up to 35 mph in the high country. Winds aren't really penetrating into the lowlands at all though, even the more wind-prone spots such as the Rocky Flats area. They should weaken some during the day over the high country, but still could be enough for a few spots with blowing snow on the roads. Highs should rise back to the 40s and 50s across the plains and 30s and 40s in the high country.
256 PM EST Wed Nov 30 2022 Gusty westerly winds and cold temperatures prevail in the wake of a cold front this afternoon. Skies will start off clear overnight and winds will gradually slacken as the boundary layer decouples and high pressure approaches from the west. Despite the southerly flow and slightly warmer low-level temps, highs tomorrow will likely only get into the mid 40s for most spots with filtered sunshine from high to mid level clouds.
151 PM MST Wed Nov 30 2022 Water vapor shows upper ridge axis over the Rockies with trof just offshore the Pac NW. At the surface, high is shifting into the eastern Dakotas with lee trof advancing east through MT/WY. Temps early this afternoon are mainly in the 20s to mid 30s with a bit of cirrus spilling over the ridge. Lee trof continues to advance east tonight with a 5mb pressure gradient setting up across the Black Hills. Strong west/southwest downslope winds will continue on Thursday with thermal ridge passing overhead. Winds especially in the higher Black Hills could continue to reach near warnings levels through the day, although warm advection and increasing cirrus could limit this potential. Cold front will cross the region Thursday night as upper trof shifts into the Northern Rockies, with gusty northwest winds developing.
Cold front continues to advance southeastward through the Southeast U. Otherwise, it will remain mostly dry and warmer for much of today, with highs in the low to mid 80s. Southerly winds around 10-15 knots this morning will gradually weaken to 5-10 knots this afternoon out of the S/SE, ahead of an approaching weakening cold front. The forecast point at Astor has fallen to Minor Flood Stage, but a slower decline is expected into late week, as north-northeast winds increase behind a cold front.
1138 AM CST Wed Nov 30 2022 (Today and tonight) Surface ridging around 1032mb was settling into the region early this morning leading to colder temperatures than what we have observed the past several mornings. However, this ridge will quickly slide to the east this afternoon returning surface winds to a southerly direction. At the same time, short wave ridging will move overhead and will rapidly exit with a short wave trough approaching this evening through the early morning hours on Thursday.
1108 AM CST Wed Nov 30 2022 (Today through Thursday Night ) To begin the period, a cold front has moved through the state, dropping temperatures and bringing gusty winds and drier air. By Thursday night, a cold front is expected to be near the state, increasing PoPs across the state.
Below normal highs are expected today behind the trough that brought cold air to the region and light snow to portions of central Kansas.
High temperatures will range from the low 40s across far northeast Oklahoma to the low 50s in southeast Oklahoma.
Previous Discussion: High pressure moving across eastern Montana with clear skies and very cold temperatures over most of the region. The exception is the far northeast corner of the state where low clouds linger are keeping temperatures warmer. Upper ridge will be building across the state today as a trof digs off the Pacific Northwest. Warmer temperatures are expected mainly across the southern zones today and Thursday in the vicinity of this low. On Thursday the moisture streaming off the Pacific around the western trof will be crossing the divide into north central Montana.
1058 AM CST Wed Nov 30 2022 (Rest of Today) A cold front has shifted southeast of the I-59 corridor this morning allowing gusty northwest flow and cold advection to arrive.
In the mid to upper levels, a ridge is in place over Cuba and the western Caribbean with an extension of this ridge westward across the Yucatan Peninsula and into eastern Mexico. The center of the ridge was located between the Cayman Islands and western Cuba. A deep trough is in place over the eastern United States. This trough is helping to flatten the northern part of this ridge over the Florida Peninsula as it tries to push southward. In the low levels, the ridge was centered over central to south Florida with an extension of this ridge northeastward into the western North Atlantic. A new ridge will quickly traverse eastward across the eastern third of the U.
(This afternoon through Thursday night) Last night's cold front made for a chilly morning and afternoon today, with many locations only reaching the 40s and 50s for high temperatures. A subtle upper ridge will build in today and bring southwesterly flow aloft for the next few days. Winds will remain fairly light but out of the southeast tonight so low temperatures will be a few degrees warmer than this morning.
105 PM EST Wed Nov 30 2022 Gusty winds and showers with a cold frontal passage today will be followed by isolated snow showers in northwest PA and higher elevations overnight.
1256 PM EST Wed Nov 30 2022 (18Z TAFS) Easterly flow continues to veer to the W and WNW as a cold front approaches.
1028 AM MST Wed Nov 30 2022 Current surface map places high pressure across eastern Montana into western South Dakota. Upper trough over the Upper Midwest continues to move east today as next upper trough digs into the Pacific Northwest. Flat upper ridge will bring warmer temperatures to the area today and Thursday, with low level thermal profiles peaking Thursday afternoon.
(Tonight) Our post frontal airmass continues to filter in as high pressure briefly settles over the TN Valley overnight.
249 PM EST Wed Nov 30 2022 (This afternoon through Thursday) Cold front currently pushing southeast across the central portion of the CWA. High pressure will build in back behind the front with dry conditions anticipated for the remainder of the short term period.
(This evening through Thursday) Early afternoon visible satellite imagery shows high clouds starting to overspread the area as a result of a large-scale trough off the west coast moving east and bringing southwesterly flow aloft.
Highs will struggle to reach near 50 degrees in the NW ArkLaMiss Delta while only into the low 50s in NW, mid 50s along the Natchez Trace Corridor to low-mid 60s in the I-59 corridor. /DC/ Today through tonight: A cold front will push east of the area early this morning bringing an end to the threat for storms/heavy rainfall. Strong post-frontal subsidence will quickly clear skies and bring gusty NNW wind along with much cooler temperatures. Expect daytime temperatures to struggle to warm up much from this morning in the cold advection pattern, and lows tonight will drop to near or just below freezing for most of the area under mostly clear skies with light wind.
As high pressure shifts east of the area tomorrow, southerly winds and mostly sunny skies will bring some warmth back to the area, but afternoon highs will only reach the upper 30s to lower 40s.
Weak troughiness in southern Florida sparked showers and thunderstorms across most inland locations south of Lake Okeechobee this afternoon through this evening. SPC mesoscale analysis notes that the highest surface theta-e and moisture convergence are in the Keys and adjacent waters, which indicates where the shower's current resides.
729 PM EST Wed Nov 30 2022 Cooler and dry conditions are expected to finish out the work week.
Slightly warmer today and the rest of the week, before an approaching weather system brings some moisture into Southeastern Arizona this weekend leading to rain chances. Temperatures are 4-8 degrees warmer than yesterday under clearing skies.
519 PM CST Wed Nov 30 2022 (Tonight) Our post frontal airmass continues to filter in as high pressure briefly settles over the TN Valley overnight.
Temperatures across the Nature coast will dip into the lower 50s while overnight lows in SWFL will remain near 70. The trough axis that has allowed the attendant cold front and subsequent squall line to work through the region is propagating off to the Northeast, as upper-level ridging remains dominant across the peninsula. With the upper-level trough axis pulling off to the NE, high pressure remains dominant, and the northerly flow looks short-lived. After tomorrow, temperatures continue to warm back into the low-to-mid 80s and dewpoints rebound as well.
Look for return flow to increase today, and that means warmer temperatures and increasing dew points.
In its wake, a cold front will drop down during this afternoon from a low pressure system centered over Canada.
1116 PM EDT Wed Jun 23 2021 High pressure gradually retreats offshore through Thursday.
431 AM EDT Thu Jun 24 2021 Pleasant and rain-free conditions will prevail in Central PA into the weekend thanks to a large area of high pressure. As the high slides to the east and off the Middle Atlantic Coast, it will create a southerly flow of increasingly moist air. Everybody except the higher elevations of the Laurels and Endless Mtns should get within a deg or two of 80F. Those ridgetops will stay in the m70s.
Low pressure over the Central Plains will gradually push a surface boundary toward our region.
A fairly tranquil night across the Tennessee Valley region as high pressure continues to promote a mostly clear sky and dry weather this evening. Lows temperatures are still expected to run a few degrees higher than last night as lows will remain in the lower 60s. There is a weak northwesterly flow trough that will move through the Tennessee Valley on Thursday.
This area of showers was developing along a stalled frontal boundary and also ahead of the northeasterly wind surge from high pressure wedging down the Appalachians. East northeasterly winds will increase through the morning as high pressure wedges southward and a coastal trough develops. A weakness aloft will remain over the area, bringing cooler temperatures aloft (-8. The early onset of showers and storms will hold temperatures down into the low to mid 80s across the region. Overnight lows will be cooler across interior southeast Georgia in the mid to upper 60s, with low to mid 70s elsewhere.
451 AM EDT Thu Jun 24 2021 High pressure will remain over the area through tonight.
Return flow developing behind high pressure departing toward the Mid Atlantic coast will lead to a milder night with lows in the upper 50's/low 60's and a few mid 60's in the S Valley. CD Chattanooga Airport, TN 86 65 87 68 88 / 10 0 0 0 10 Knoxville McGhee Tyson Airport, TN 87 63 88 66 90 / 10 0 0 0 10 Oak Ridge, TN 86 62 87 66 89 / 10 0 0 0 10 Tri Cities Airport, TN 84 57 86 63 88 / 10 0 0 0 20.
433 AM EDT Thu Jun 24 2021 High pressure will continue to build across the region through the end of the week with gradually warming temperatures and mainly dry weather. Another pleasant day on tap today as high pressure remains situated to our south and east.
136 AM EDT Thu Jun 24 2021 Fair weather will continue through Thursday as high pressure ridges in from the north.
As mid level ridging begins to build over Texas, VFR conditions are expected to prevail over the next 24 hours. Expect the inverted 500 mb trough axis that helped this conv fire up today to start to weaken later tonight into Thurs which will allow the ridge axis to rebuild over the region dampening the conv chcs. Thus, rain chances should start to trend down in the short term with a weak inverted mid level trough moving west and being absorbed as mid level ridging builds over the area on Thursday and Thursday night.
1117 PM MDT Wed Jun 23 2021 Current models show the upper ridge stretching from NM up through ID/MT today. By Thursday, upper flow over the region starts to become more zonal as a strong upper low over the Pacific coast helps to flattens the ridge.
The area remains on the northern edge of an upper level ridge with another wave expected to move across tonight.
320 AM EDT Thu Jun 24 2021 High pressure will linger across the forecast area today, with below normal temperatures and dry weather continuing.
1113 PM EDT Wed Jun 23 2021 High pressure gradually retreats offshore through Thursday.
1252 AM EDT Thu Jun 24 2021 Cool and dry high pressure will continue to build in from the north through Thursday with below normal temperatures expected.
320 AM CDT Thu Jun 24 2021 Scattered showers and thunderstorms have developed ahead of a cold front pushing through western MN early this morning. The cold front will continue eastward this morning, clearing most of the area early this afternoon before additional development occurs.
NW winds at 5 to 15mph with a few afternoon gusts to 20 to 25mph with mixing bringing afternoon highs into the low to mids 80s. Overnight a few showers and thunderstorms will slowly try to creep into eastern ND as midlevel trough/forcing in western Dakotas approaches.
As the mentioned front lingers, slightly cooler conditions are possible across the northern zones. In addition to the slightly cooler highs, late afternoon and evening storms will be possible along and north of this front with the upslope flow along and behind it. Have the highest pops this evening across the north in closer proximity to this front. The cold front may be reinforced by outflow from the storms this evening.
Early this morning, the synoptic pattern was characterized by a Hudson Bay closed low and ridging building off the coast of the Pacific Northwest, leading to quasi-zonal flow across North Dakota. Lows tonight will stay in the lower 50s to lower 60s with widespread cloud cover along with the precipitation.