Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Now through Tuesday) A cold front currently moving through the Arklatex will move into the northwestern forecast area after midnight and push offshore by midday tomorrow. Overall rain totals with this system will generally be a tenth of an inch or less, with the highest chance of rain being across far inland southeast Mississippi and far inland southwest Alabama. Cooler and drier air will filter in behind the front. Highs Tuesday will be in the low to mid 70s along the coast with far inland areas not climbing out of the mid to upper 60s.
514 PM CST Mon Nov 25 2024 (This evening through Tuesday Night) At 20z, a cold front was located from near Crockett, TX to Longview, to Vivian, LA to northwest of Camden, AR. We'll also have to rely almost entirely on frontal forcing to aid in convective development as large scale ascent from an upper trough will remain well to the northeast of the forecast area. Behind the front, the persist clouds should gradually scatter out and the winds should also diminish tonight as surface ridging quickly builds overhead. This should slow the rate of cooling tonight, but near or below freezing temperatures are still possible in northern McCurtain County.
537 PM CST Mon Nov 25 2024 Updated at 532 PM CST Mon Nov 25 2024 - Seasonably chilly tonight, then breezy and warmer tomorrow.
Tuesday will be more of a transitional day, especially towards the end of the day and overnight as the next trough makes its way across the central CONUS.
512 PM CST Mon Nov 25 2024 (Tonight through Tuesday night) As a mid-level trough swings across the Great Lakes region, so does a cold front through South Texas. Latest CAM guidance shows the dry cold front reach our northern counties from La Salle to Victoria Counties around 7 PM this evening, extending through Kleberg County by 2 AM Tuesday. Although mostly cloudy skies will accompany along and in wake of the front, the cooler drier air will result in low temperatures generally in the 50s area wide tonight. The offshore flow through the day and increased cloud cover will limit highs to the low to mid 70s.
The warmest day will be Tuesday with highs in the low 80s from Tucson westward.
536 PM CST Mon Nov 25 2024 (This evening through Tuesday Night) Cold front is currently making its way through Southeast Texas.
630 PM EST Mon Nov 25 2024 A cold front will cross the area this evening.
932 PM EST Mon Nov 25 2024 Cold front currently stretches from the central Great Lakes back through the Lower Mississippi River Valley to far SE TX. (This afternoon through Tuesday) At a glance: -An approaching cold front will bring some light rain to N.
A weak, positively tilted upper level trough is gradually moving over the area. Snow will continue to fall across the high Klamath mountains tonight, with convective mixing brining some light snow as low as 3000 feet.
No changes to current forecast, everything remains on track with high pressure dominating the pattern.
- Light rain potential (20-50% chance) Tuesday afternoon and Tuesday evening with the highest chances across central Missouri.
704 PM EST Mon Nov 25 2024 - A few showers will be possible this evening as a cold front arrives, but those should depart quickly.
At the surface, an area of high pressure extends from NE MT/NW ND through central SD/NEB and into wrn KS. Southeasterly surface winds will keep cooler temperatures over the western SD plains tonight and Tuesday with warmer air over northeastern Wyoming and far southwestern South Dakota.
911 PM EST Mon Nov 25 2024 A cold front will cross the area this evening.
845 PM EST Mon Nov 25 2024 A cold front is expected to move through on Tuesday.
(This afternoon through Tuesday) At a glance: -An approaching cold front will bring some light rain to N.
509 PM CST Mon Nov 25 2024 - Light rain and drizzle will develop along a cold front this afternoon.
After a fairly prolonged period of active and unsettled conditions the last couple of weeks we finally get a reprieve just in time for Thanksgiving travel; impeccable timing! Expect gradually decreasing showers through Tuesday as the offshore low pressure drifts southward and then pushes inland. The trend of mostly dry and cooler weather continues to hold mid to late week into the weekend, especially for the inland valleys/Portland Metro.
522 PM CST Mon Nov 25 2024 - Temperatures much cooler today and overnight tonight in the wake of the cold frontal passage today.
521 PM CST Mon Nov 25 2024 - Dry and slightly warmer Tuesday with highs ranging from near freezing to the low 40s.
1041 PM CST Mon Nov 25 2024 - Temperatures much cooler today and overnight tonight in the wake of the cold frontal passage today.
120 AM EST Tue Nov 26 2024 A cold front will cross the area this evening. High pressure will build in for Tuesday, but then an area of low pressure will pass south of the region on Wednesday. The cold front has moved into western portions of our area and is approaching the I-71 corridor attm. As the cold air overspreads the region, morning lows will range from the lower 30s in the far west to the upper 30s in the east. High pressure will build across the area through the period. Highs on Wednesday will be in the low to mid 40s with overnight lows in the mid 30s.
With a predominantly zonal upper-level flow pattern through Tuesday night, moisture advection from the AR continues to funnel in from the west resulting in prolonged precipitation, especially in the high terrain. The northern valleys will likely be cold enough to support 1-5" of snow throughout this event while warmer valley temperatures south of I-70 currently support a trace to 1" of snow. Slippery spots are also possible during periods of light accumulation in the lower valleys. The ECMWF continued to depict a shallower faster moving trough which shifts east of the area around six hours faster than either the GFS or Canadian solutions.
1027 PM CST Mon Nov 25 2024 Observational analysis depicts a cold front has moved through the MId-South. Temperatures behind this front range from the lower lower to upper 50s under mostly cloudy skies. JPR A cold front will pass through the region this evening, bringing scattered showers.
- Wednesday into Wednesday night, the potential event now appears to be uneventful with mainly a light rain followed by a light mix as it ends, all with temperatures well above freezing.
These showers formed along the periphery of a low level ridge in combination with a sea breeze anchored on the north coast of Cuba. Meanwhile, looking at infrared satellite, we can see evidence of mid and upper level trough with a shield of clouds across easter Cuba and the Bahamas. The aforementioned low level ridge is maintaining our northeast to east winds, though they are over performing just a tad in the Hawk Channel waters. Expect slackening winds due to a weakening high pressure system that will linger over the Florida Peninsula until a broad low develops over the southeastern US.
As of early this morning a cold front has cleared the area, with breezy northerly winds prevailing in its wake along with modest cold air advection, as evidenced by temperatures decreasing into the 50s. Temperatures will decrease to near seasonal normals with highs ranging from the upper 60s in the Brush Country to the low to mid 70s over coastal areas. There is a moderate signal in the hi-res guidance of fog and low-lvl stratus potential late tonight into Wednesday morning, with the highest potential over inland areas, where the best radiational cooling will occur (as increasing winds may hinder fog development near the immediate coast). Another (stronger) cold front will begin to shift into the southern Plains on Wednesday, with warm southerly flow developing ahead of it over South Texas.
Our stretch of relatively quiet and cool weather will continue as nearly zonal flow aloft transitions into broad troughing by the weekend. Northwest winds continue to calm this afternoon behind the cold front that brought much colder temperatures to the region today. However this warm up will be short lived for some, as our next cold front will move through the Central Plains on Wednesday.
Majority of the freezing temperatures remain forecast north of Interstate 40 as the more scattered cirrus clouds look to be over the southern half of the CWA.
Evening satellite pix show an upper low off the Oregon coast 42/129 in the base of a trough extending from interior western Canada. The trough and low will move through our CWA tonight through Tuesday with light pcpn (snow level 3500 to 4500 feet MSL).
- High confidence on much below normal temperatures by the end of the week through the weekend, with highs in the lower teens to 20s and lows in the single digits above zero to the single digits below zero. On Tuesday, HREF ensemble mean cloud cover suggests an increase in areal coverage of mid/high level clouds during the day while high pressure sort of gets squeezed off and pushes off to the east.
Light east-northeast winds in the low-levels will continue to bring in a warm airmass from over the western Atlantic, with high temperatures in the low to mid 80s each day.
Total snowfall accumulations of 1 to 4 feet are possible with up to 7 feet at the higher elevations. The large upper low center currently positioned off the Oregon coast continues to pull in Pacific moisture into central CA. This will result in a period of moderate to locally heavy precipitation across much of our area for much of the overnight period continuing through much of the day on Tuesday before tapering off Tuesday evening as the main upper low currently off the Oregon coast moves inland across the PAC NW and pulls the deep moisture to the east of our area by Wednesday when the precipitation tapers off the showers.
A cold front has pushed through the area this morning with a 1030 mb ridge setting up shop over KS/OK. Skies should clear today with highs working into the low 50s despite the cool air advection. A brisk northwest wind moves in behind the front for Thanksgiving Day, expected highs are in the upper 40s with more clouds than sun trailing behind the upper trough/front.
325 AM EST Tue Nov 26 2024 A cold front will cross the region this morning with widespread rain showers. Cold front is pushing through the region this morning with a decent slug of beneficial rainfall. By early Wednesday afternoon, the low-level flow should begin to back into the SW, effectively ending the threat of any light lake- effect snow. As for temperatures, they should generally exhibit a gradual falling trend behind the cold front this afternoon, bottoming out in the mid 20s-lower 30s range by dawn Wednesday. Highs Wednesday afternoon should range from the upper 30s over the higher terrain, to the mid 40s over the valleys of NY's southern tier and NEPA.
Flow around the upper low from the north is sending an area of low clouds south from Manitoba at at 0330z they had reached Devils Lake-Grand Forks- Crookston. In addition, seeing widespread light snow Winnipeg area and southeast Manitoba into Roseau, Warroad via webcams and enough to go likely -sn for the overnight this area as upper low moves nearby. Upper low currently over southern Manitoba will dig down into northern MN tonight.
1044 PM CST Mon Nov 25 2024 (This evening through Tuesday Night) Cold front is currently making its way through Southeast Texas.
1109 PM CST Mon Nov 25 2024 Observational analysis depicts a cold front has moved through the Mid-South. Temperatures behind this front range from the lower to upper 50s under mostly cloudy skies. JPR A cold front will pass through the region this evening, bringing scattered showers.
(Today through Wednesday Night) After the record high afternoon temperatures yesterday, a cold front in the evening brought temperatures down closer to seasonal. Low temperatures tonight will be about 5-10 degrees warmer than last night with areas north of I-10 in the low to mid 50s, and then mid to upper 50s south of I-10 (and low 60s along the coast). The temperatures continue to rise Wednesday afternoon back into the low to mid 80s for much of the region with record highs being within a few degrees.
The low temperatures tonight will likely fall to the low to mid 20s as high pressure and colder conditions settle into the region.
1114 PM CST Mon Nov 25 2024 - Dry and slightly warmer Tuesday with highs ranging from near freezing to the low 40s. - Low chance (20 percent) for light snow along the Highway 14 corridor Wednesday afternoon.
Very cold nights in the high mountain valleys. Weak ridging in the westerly flow aloft will shift east of the area tonight. Some light snow spills over to the higher foothills, but westerly downslope flow will greatly limit amounts. Temperatures over the lower elevations will be mild due to the temperate Pacific airmass. An upper trough is to push southeastward across the CWA Wednesday into Wednesday evening. Decent snowfall is still expected in the high mountains with help from good orographic all day Wednesday. We also added some Advisory highlights for the southern foothills and the Palmer Ridge for late Tuesday night into late Wednesday evening.
1150 PM CST Mon Nov 25 2024 (Tonight through Wednesday night) Wx map shows the next cold front extending from the ArkLaTex through Central Texas. Temperatures in the lower to mid 80s areawide. The cold front will move through the area this evening and overnight, with northwest winds bringing cooler temperatures to the area.
(This afternoon through Tuesday) At a glance: -An approaching cold front will bring some light rain to N. GA -Cooler weather as the front stalls on Wednesday. A cold front reaching toward our CWA. This keeps the daytime highs tomorrow in the low 60s and 50s across northern GA and upper 60s and low 70s across the south and central portion of the CWA.
- The first shot of significantly cold air will result in wind chills in the single digits in many areas this weekend, with high chances of temperatures staying below freezing the entire time.
A storm system passing through Utah will bring breezier winds and slightly cooler temperatures to northern Arizona for the start of the week. Light rain and very high elevation snow will continue over far northern Arizona tonight and Tuesday, before a trough pushes what is left of a diminished moisture feed southward on Wednesday. An increase in low-level moisture should limit the overall mixing potential, thus keeping gusts a bit on the lower side. Nevertheless, gusts upwards of 30-40 mph look possible over the High Country during the afternoon Tuesday. However as the center of the low moves into Utah and Colorado, moisture begins to sag southward along a band of frontogenetic forcing. This would put snow levels around 7000 feet, but given the still well above freezing surface temperatures, little to no accumulation is expected.
1041 PM CST Mon Nov 25 2024 Updated at 1024 PM CST Mon Nov 25 2024 - Seasonably chilly tonight, then breezy and warmer tomorrow.
(Today through Wednesday) A cold front is currently making its way through Deep South Texas, which will lower today's high temperatures to the upper 70s throughout the Valley with low temperatures tonight getting down into the upper 50s/lower 60s. However, the cooler weather will not last. On Wednesday, highs are expected to get back up to the upper 80s/lower 90s, as the front lifts out of the area and winds shift back to a southerly direction, slightly increasing in speed as a tighter pressure gradient sets up ahead of a stronger cold front expected later in the week.
- Following a seasonably cool day, a quick warmup is expected on Wednesday before another strong cold front arrives Wednesday night. Much cooler temperatures are expected Thanksgiving Day.
1121 PM CST Mon Nov 25 2024 (Tonight through Tuesday night) As a mid-level trough swings across the Great Lakes region, so does a cold front through South Texas. Latest CAM guidance shows the dry cold front reach our northern counties from La Salle to Victoria Counties around 7 PM this evening, extending through Kleberg County by 2 AM Tuesday. Although mostly cloudy skies will accompany along and in wake of the front, the cooler drier air will result in low temperatures generally in the 50s area wide tonight. The offshore flow through the day and increased cloud cover will limit highs to the low to mid 70s.
(Today through Wednesday) After some showers across the area this evening, the cold front has cleared the plateau with cooler air streaming in behind it. Temperatures will be noticeably cooler than yesterday with highs in the low to mid 50s instead of the 60s. Wednesday will be a warmer day as warm air advection increases as the next system begins to organize.
951 PM CST Mon Nov 25 2024 - Light rain and drizzle will develop along a cold front this afternoon. A weak trof axis is moving across the Midwest this afternoon spreading height falls across the Great Lakes and Mississippi River Valley. Increasing ascent from the incoming trof is expected to generate rain along the front through the rest of the afternoon with only light rainfall amounts. Behind the front winds will shift toward the northwest with high pressure establishing itself across the plains. A drier and much cooler airmass will filter in behind the front. High pressure at the sfc will settle atop the Quad State on Tuesday providing clear skies and cool temperatures.
328 AM EST Tue Nov 26 2024 Morning clouds will decrease as high pressure begins to build into the area today. This high will offer dry weather today and tonight.
- Trending colder starting on Thanksgiving with much cooler temperatures into the holiday weekend. Through the day tomorrow, winds transition to more southerly on the backside of the high as low pressure builds to our west.
1043 PM CST Mon Nov 25 2024 (Tonight through Tuesday night) Our initial cold front has now arrived into the Hill Country and moves through the rest of the region by mid to late afternoon. Temperatures tumble as well with much cooler temperatures trending into this evening and overnight lows that range from the 30s in the Hill Country to the 40s and low 50s elsewhere. A cooler day will be forecast on Tuesday with the afternoon highs only topping out in the 60s to near 70 degrees.
1225 AM EST Tue Nov 26 2024 - A few showers will be possible this evening as a cold front arrives, but those should depart quickly.
Low clouds are expected to remain intact and slowly expand northward into the Highway 90 corridor mainly west of San Antonio today, while high clouds move in from the west today. Clouds will have an impact on temperatures today and have opted to blend some of the cooler NAM MOS numbers to keep high temperatures down in the 60s today. Southerly winds continue tonight, with some occasionally gusty winds over the higher terrain of the Hill Country.
(Now through Wednesday) A cold front pushes across the area this morning bringing with it isolated to scattered rain showers. Dry weather returns as cold air advection takes root over the area in the wake of the front along with slightly cooler temperatures. We quickly warm back up as a much more notable upper trough moves towards the region Wednesday night, bringing increasing rain chances late Wednesday night. Temperatures in the wake of the cold front this afternoon will remain on the warm side topping out in the middle to upper 60s west of the I-65 corridor and lower to middle 70's to the east. Wednesday night will be markedly warmer than the preceding night, with lows only falling into the lower to middle 60's for all locations.
A closed upper level low over Hudson Bay will continue cold air advection with cyclonic flow for the week.
High pressure will build across the region Wed, lasting into the weekend. As such, will trend to mostly dry and but cooler weather during that time, with areas of overnight/morning fog/low clouds.
A front will sag south across portions of northern Nebraska with a cooler air mass advancing southward, keeping northern Nebraska cooler with highs only reaching the upper 30s to low 40s for Tuesday. Confidence is low in precipitation even occurring, which is why PoPs were around 30 percent or less for tonight into Wednesday morning, the system is not very robust and there may be some lacking of forcing leading to the lower confidence.
533 AM CST Tue Nov 26 2024 (Today through Wednesday) A cold front is currently making its way through Deep South Texas, which will lower today's high temperatures to the upper 70s throughout the Valley with low temperatures tonight getting down into the upper 50s/lower 60s. However, the cooler weather will not last. On Wednesday, highs are expected to get back up to the upper 80s/lower 90s, as the front lifts out of the area and winds shift back to a southerly direction, slightly increasing in speed as a tighter pressure gradient sets up ahead of a stronger cold front expected later in the week.
The NAM does carry some adequate instability and favorable snow squall parameters here while the GFS does not, and both models lack a decent pressure rise/ fall couplet associated with the cold front (and CAA/flash freeze potential isn't very strong/sharp). Several models also continue to show a final band of more organized snow associated with the cold front crossing the Arco Desert and Snake Plain region this evening, and we have slightly increased/broadbrushed PoPs and increased QPF over NBM/WPC guidance to cover this feature.
- High confidence on much below normal temperatures by the end of the week through the weekend, with highs in the lower teens to 20s and lows in the single digits above zero to the single digits below zero. Dry and cold weather remains in place today as the region is sandwiched between a warm front to the south over the NE/SD border and high pressure to the north and east. This remains the flow pattern as a trough moves southeast out of Canada. The center of the low looks to stay off to our east over MN/WI/MI.
Temperatures on the island chain are once again a few degrees higher than the previous 24 hours ago averaging in the lower 70s with dewpoints in the mid to upper 60s.
- Light rain potential (20-50% chance) Wednesday afternoon and evening with the highest chances across central Missouri.
Zonal flow continues across the southwestern CONUS while a weakening area of low pressure continues to spin off the coast of the Pacific Northwest.
534 AM CST Tue Nov 26 2024 (Today through Wednesday) After some showers across the area this evening, the cold front has cleared the plateau with cooler air streaming in behind it. Temperatures will be noticeably cooler than yesterday with highs in the low to mid 50s instead of the 60s. Wednesday will be a warmer day as warm air advection increases as the next system begins to organize.
There is a high chance that temperatures remain below freezing the whole weekend, with single-digit wind chill values accompanying overnight temps in the lower teens.
643 AM EST Tue Nov 26 2024 Morning clouds will decrease as high pressure begins to build into the area today. This high will offer dry weather today and tonight.
A trough will pass north of Arizona, bringing breezy conditions today and Wednesday and showers mainly across far northern Arizona. Drier/warmer conditions expected to return for the second half of the week and into the weekend. The trough that will slide through the Great Basin Region today, before reaching Utah on Wednesday, continues to weaken and become largely less impactful for our CWA. With the continued zonal flow across Arizona, temperatures have remained on the warmer side resulting in snow levels generally above 9000'. These warmer conditions should keep the primary precipitation type as rain at least through today.
538 AM CST Tue Nov 26 2024 (Today through Wednesday Night) Drier and much cooler airmass contd to advect into the Natural State early this mrng, following the passage of a CDFNT on Mon. With the high center retreating to the east, south and southeast winds will return.
WEATHER PATTERN OVERVIEW: Upper air pattern with ridge over the eastern Pacific and a broad trough covering most of North America will persist through the end of the week.