Aikyam-Lab/Synoptic-Bench huggingface dataset:
The main concerns for early Wednesday morning remains the strong, gusty winds behind the cold front that passed through the area earlier today. The main concerns for Tuesday evening and Tuesday night remains the strong, gusty winds behind the cold front that passed through the area earlier today. /issued 235 PM CST Tue Nov 21 2017/ (Tonight and Wednesday) Cold front has passed across all of West Central Texas late this afternoon, leaving gusty north winds in its wake. With light winds and a dry atmosphere, good radiational cooling conditions are expected near the freezing mark along the I-10 corridor, NW Hill Country, and San Saba and Brown Counties. Lows will be a bit warmer in the mid 30s to lower 40s farther north and west where winds will be stronger.
1120 PM CST Tue Nov 21 2017 A dry sfc cold front continues to move through MO.
Latest water vapor imagery and RAP upper air analysis indicate trough axis associated with Hudson Bay low extends south across the area this morning. Meanwhile higher terrain will see temperatures only reach into the lower 40's by late afternoon.
A warm front pushing through central & southeast Montana this evening has spread some scattered rain through that area. Therefore added slight chance for rain, and freezing rain to that area for isolated frozen pockets with little QPF. Early Update: The 00Z KGGW Sounding confirms increasing temperature aloft, as the western ridge moves across the Divide. Strong southwest to northeast jet stream pushing into Montana tonight will flood warmer air from west to east tonight into Wednesday. The 12z models showed lesser chances of freezing rain for tonight and thus lowered PoPs. Winds crank up a bit Wednesday and followed the NBM closer, which gave stronger winds to the higher elevations (i.
230 AM MST Wed Nov 22 2017 Mid and high level moisture moving through an amplified ridge of high pressure over the western U. Snow accumulations in the higher reaches is expected to be less than 2 inches and localized. Showers diminish late in the afternoon as the ridge axis shifts eastward over the area tonight. The ridge will remain 'dirty' with cirrus continuing to sweep overhead, especially across the north. The ridge is flattened on Thanksgiving Day, but this isn't expected to have much impact on sensible weather across the area with dry, partly sunny and mild conditions persisting. Little change to forecast thinking through the weekend as high pressure remains firmly in control.
1240 AM EST Wed Nov 22 2017 A cold front will cross the area tonight, bringing a few showers. Cold and dry weather will arrive Wednesday with high pressure. Dry conditions are forecast for the remainder of this week as the high shifts to the East Coast, while temperatures increase in the southerly flow behind the high. Surface cold front bisecting Ohio will push east of ILN/s FA around midnight. Expect lows from the upper 20s west to the lower 30s east. A cold and dry airmass associated with high pressure extending from Northern Mexico to the Great Lakes will provide dry weather Wednesday and Wednesday night. High pressure extending across the area at the beginning of the period will move off to the east.
A cold front will push through prior to dawn with breezy conditions developing downwind of Lake Pontchartrain at KMSY and KNEW.
Widespread VFR tonight in wake of a dry cold front.
1049 PM CST Tue Nov 21 2017 Brisk north winds prevailing over the region this afternoon following the passage of a cold front earlier this morning. Meanwhile, latest satellite shots show a fair amount of clearing across the area this afternoon which will set the stage for strong radiational cooling later tonight after winds weaken and high pressure arrives from the northwest. From a sensible weather standpoint, very little in the way to get excited about this week as high pressure remains in control through the Thanksgiving holiday. In fact, much of our upcoming weather will be influenced by building heights aloft as West Coast ridging breaks down and warm air slides downstream over the Great Plains through late week.
300 AM CST Wed Nov 22 2017 Upper analysis shows a southern stream trough moving into the northwestern Gulf of Mexico, a northern trough draped across the Great Lakes and Appalachian Mountains, and ridges well to the east and west. Radar imagery shows rainfall associated with the southern trough is moving south and will be a mostly coastal issue by daybreak. Observations show that the southern disturbance has drawn some drier air into the CWA ahead of the actual cold front to the north. The continental air mass associated with the northern upper trough will likely not reach the northern CWA zones until late morning and track across the area through the early afternoon.
Also increased cloud cover some given the high likelihood of low clouds around daybreak. Gradient has relaxed as high pressure off the southeast U. Winds will remain rather light tonight through Wednesday then begin to increase some as low pressure develops over the central gulf and moves east late in the week.
314 AM CST Wed Nov 22 2017 Surface analysis from this morning shows that the dry cold front has shifted through the S. With strong ridging re-establishing along with a strong low to mid level subsidence inversion over the area, rain chances will be at 0 percent.
Dry and Much Cooler. With dry cool air in place over the region, temperatures today and tonight will be cooler than seasonal normals. Lows tonight mainly in the 35 to 40 range will dominate; however, some low-lying areas may have lows closer to freezing. Unseasonably warm afternoon highs on Thanksgiving day will range from around 70 to the lower 70s. The warmer than normal temperatures will then continue through the holiday weekend, as an upper ridge to the west slowly migrates over Texas.
214 AM EST Wed Nov 22 2017 Breezy conditions were accompanying the cold front passing through the region early this morning. The colder airmass ushered in by the overnight cold front passage will pull high temps back into the low to mid 40s today.
As a result, we are going ahead and start the High Wind Warning around 06z even though the rest of the forecast zones may end up starting a little later. Otherwise mainly dry overnight through Weds night other than a few possible snow showers over the higher mtns into Weds morning. Warmer over the plains Weds as the warmer downslope winds spread east across the Panhandle. Mild and mainly dry weather seen for the CWA as upper ridging will be the prevalent feature influencing the weather.
VFR prevails under high pressure with clear skies and generally light winds.
329 AM EST Wed Nov 22 2017 A cold front will move west to east across the North Country today, bringing rain and snow showers to the region.
226 AM CST Wed Nov 22 2017 A ridge of high pressure remains sprawled across the area early this morning. This ridge is progged to translate south and east allowing southerly winds to return to much of central and portions of south central KS this afternoon. This will allow temperatures to moderate across central KS with highs climbing into the upper 50s/around 60 while much of southeast KS struggles to mix out with temperatures remaining in the low to mid 40s.
Temps on Wed will be several degrees warmer than today over the southeast plains, with highs in the 60s in most locations. The high valley locations will see temps that are similar to, or just a littler warmer than today. high pressure will dominate the southwest CONUS while an upper trough slowly moves east out of the Missouri Valley. Expect overnight lows in the lower to mid 30s across the region. Afternoon highs on Thanksgiving will reach into the upper 60s to lower 70s across the lower elevations.
1021 PM MST Tue Nov 21 2017 Upper level flow will remain amplified, but progressive in the period, bringing unseasonably warm weather with periodic ridge topping/flattening impulses in the flow. Vigorous mid level impulse will push into the region Thur night int Fri, supporting a cold front and some precip chances over the western 1/3.
An upper level ridge remains anchored in place just off the southeastern U. This ridge helps to keep the CWA under NW flow, hence the numerous fronts that are expected to push thru the area. With swly flow ahead of an approaching front on Fri, have trended twd the warmer guidance. Mainly light winds are expected as high pressure moves into the area.
1034 PM CST Tue Nov 21 2017 Updated aviation portion for 06Z TAF issuance Updated to add a mention of freezing drizzle over north central and northeast WI Wednesday night. BUFKIT soundings indicate potential for a brief period of light snow or flurries, followed by a few hours of freezing drizzle as mid-level moisture erodes. With the potential for early holiday travel, opted to update now and put a mention of freezing drizzle and slick roads in the Hazardous Weather Outlook.
148 AM EST Wed Nov 22 2017 Weak low pressure tracks northeast along the Carolina coast early this morning, then pushes well off the mid- Atlantic coast later this morning as a cold front crosses the area.
150 AM EST Wed Nov 22 2017 An area of low pressure will shift NE offshore the NC coast today, with light rain exiting our forecast area early this morning.
An area of high pressure will move through the Northland early today, bringing milder air and a period of sunshine. Highs will be back to the lower to middle 20s, and without the strong wind. A weak area of low pressure will move into the Dakotas today and spread clouds and eventually light snow into the Northland from the west.
Abundant high cloud cover made for a very colorful sunset this evening after a relatively cool but still warmer than average day. Currently temperatures are running a little warmer than 24 hours ago thanks to the somewhat thicker cloud cover this evening. The high clouds could result in a rather colorful sunrise tomorrow. No changes made to the current forecast and further details about the upcoming dry and warmer than normal weather can be found below. A dry northerly flow over our area with strong high pressure off the Baja coast and a trough downstream. The ridge centered just off the Baja Peninsula will reorient it's axis in a northeasterly direction and into our area over the next 48 hours as a strong system off the Pacific Northwest coast tries to push inland.
330 AM CST Wed Nov 22 2017 The region remains in between amplified ridging over the western states and a trough over the eastern third of the country.
Cold front will continue to move in from the north over the next couple of hours.
Moist flow over the ridge will continue to bring rain to the region through Wednesday afternoon.
327 AM EST Wed Nov 22 2017 Low pressure will track southeast of the region today, bringing a period of mostly rain to the area. This low will pull a cold front across the area this evening.
Higher confidence that main accumulations will be along and north of the Highway 200 corridor, generally less than an inch, but could see spotty light snow as far south as Interstate 94 and into west central MN this afternoon. Additionally, cannot quite rule out freezing drizzle along the back edge in north central MN as drier mid level air moves in, but this looks less likely than previously suggested. This will be highly dependent on cloud cover, but with the low center passing through, winds will be lighter than Tuesday and will gradually turn northerly behind the system. Thanksgiving Day is now looking a bit warmer. Warmer air is just off to our west and latest model trends are to bring some of it farther east.
352 AM CST Wed Nov 22 2017 Today through Tonight: Latest Rap and Satellite imagery showed an upper trough over the Mississippi Valley with a cold front moving through the region. For tonight expect the winds to taper off as high pressure builds into the region from the northwest as the upper trough persist across the region. Under clear skies and light north winds radiational cooling will provide lows from the middle 20s to the lower 30s.
with warm frontal passage and increased southerly flow overspreading northwest and west central MN throughout the day on Wednesday. This means more snow and less of a freezing pcpn threat. If the pcpn moves through quicker than expected, there would be an even lower freezing pcpn threat. High pressure over the Northern Plains will make for a quiet and seasonably cold Thanksgiving day.
1006 PM CST Tue Nov 21 2017 Wind speeds in the wake of the cold front have begun to diminish faster than originally expected, so the Wind Advisory was dropped at 11AM as no observations were reaching criteria any longer. With persistent northwest flow, temperatures will remain below freezing, seeing no daytime improvement and combined with the breezy conditions, the apparent temperature will be in the teens all afternoon. Tomorrow will be slightly warmer than today with low to mid 30s expected area-wide. By tomorrow evening, the building ridge across the western CONUS will begin encroaching on western MN leading in to Thanksgiving day.
352 AM EST Wed Nov 22 2017 A cold front will push southeast across the region early this morning. High pressure will then build into the area for the second half of the week.
1125 PM EST Tue Nov 21 2017 Cold front crosses overnight and early Wednesday morning. High pressure Wednesday afternoon through the end of the week.
Strong cold front that moved through the dvn cwa this morning and brought a brief period of light rain and sleet, extended from lower MI to north TX. Tonight: Canadian high pressure will push into the cwa with winds quickly diminishing by sunset. Wednesday: The high pressure ridge will shift to our southeast allowing winds to back to the southwest. Mostly clear skies, light winds and cold temperatures will be the rule tonight as high pressure builds into the region from the northwest. Wednesday, as the high pushes east, there will be increasing high clouds and winds becoming south to southwest around 5 to 10 kts by late day.
/Issued 631 PM EST Tue Nov 21 2017/ Weak high pressure off the southeast coast will continue to build away from the forecast area, and surface winds will shift to the north and northwest overnight. The tail end of a longwave trough will shift across north Georgia through tomorrow afternoon. The trough will help pull an inverted surface wave just south of the forecast area through early tomorrow evening. These features will bring a quick shot of increased moisture across the area tonight, with some clearing beginning in the northwest by mid morning tomorrow as cool high pressure builds into north Georgia.
This warning is grouped with the high wind warning for the Laramie Range and will expire at noon on Wednesday. As a result, we are going ahead and start the High Wind Warning around 06z even though the rest of the forecast zones may end up starting a little later. Otherwise mainly dry overnight through Weds night other than a few possible snow showers over the higher mtns into Weds morning. Warmer over the plains Weds as the warmer downslope winds spread east across the Panhandle. Mild and mainly dry weather seen for the CWA as upper ridging will be the prevalent feature influencing the weather.
341 AM CST Wed Nov 22 2017 An upper RIDGE prevailed over the western CONUS and a TROF over the eastern CONUS, leaving our region in NW flow aloft. Surface Canadian high pressure was centered over eastern Nebraska, resulting in northerly flow for our region. This much cooler airmass has pushed temperatures into the 20s for most locales. At the surface, southerly flow will develop this evening as the RIDGE moves to the south, and modestly strengthen by 12z/Thu. While temps should drop into the 20s again tonight, the southerly flow will ensure they will be higher than persistence, with the highest values in the northern CWA, with upper 20s, and near persistence in the eastern Ozarks of southeast MO where the RIDGE will pass south of there last and late.
135 AM EST Wed Nov 22 2017 A weak area of low pressure will develop off the Florida coast, and then track quickly northeastward along the Southeast coast tonight. A cold front will move through the area on Wednesday. Previous Discussion (As of 700 PM): An area of low pressure has become well defined just off the FL panhandle. Min temps should vary from the mid 40s NW to the low-mid 50s SE. Its attendant sfc cold front will move through during the morning into mid-day hours, followed by subtle CAA, subsidence and drying in its wake. High pressure will gradually build to our north late Wednesday and Wednesday night. Look for lows from the lower 30s north (lighter wind closer to the high center) to upper 30s south (where thicker highs clouds will be found).
/issued 836 PM CST Tue Nov 21 2017/ A cold front continues to move through the Mid-South this evening. Current temperatures are in the 40s, but will drop into the lower to mid 30s for lows. /issued 231 PM CST Tue Nov 21 2017/ A cold front continues to move south toward the CWA this afternoon and will reach Walnut Ridge and Corning in the next hour or so.
This afternoon, the cold front was located upstream and stretched from central IN southwest across southern MO.
105 AM EST Wed Nov 22 2017 Cold front crosses overnight and early Wednesday morning. High pressure Wednesday afternoon through the end of the week.
256 AM MST Wed Nov 22 2017 Water vapor shows highly amplified upper ridge over the western CONUS, with ridge topping wave over southern Canada pushing into the Northern Plains. At the surface, lee trof is advancing into eastern MT/WY. Thermal profiles along with downslope flow will push temps well into the 60s today, slightly cooler in the Hills. On Thanksgiving, upper ridge axis will move into the Northern Plains with even warmer temps expected, 70s on the SD plains.
Strong high pressure near the Baja Peninsula will keep Pacific storm systems well north of New Mexico through the Holiday weekend.
329 AM EST Wed Nov 22 2017 A cold front exits east first thing this morning.
357 AM CST Wed Nov 22 2017 A cold front bisects the area this morning although the boundary appears to have taken on a very wavy shape as analyzed based on dewpoints. Scattered light to moderate showers continue along the coast becoming more numerous offshore as the upper trough axis extends nearly halfway across the gulf of Mexico. As the trough continues its southeasterly progression, skies are expected to clear by mid to late morning yielding sunny and cool conditions by this afternoon. The pressure gradient in the wake of the front will result in breezy conditions area wide today with winds diminishing overnight as high pressure builds across the region.
249 AM CST Wed Nov 22 2017 Surface map early this Wednesday morning has high pressure centered over eastern KS/NE with ridge extending northward into the Upper Mississippi River Valley Region. The area/ridge of high pressure will drift southeast of the region today as a wave of low pressure drops southeast out of Alberta into the Northern Plains. The wave of low pressure moves southeast through the area tonight, spreading the likelihood of some light snow across north central WI, including Clark Taylor counties. Thanksgiving Day looks fantastic as a weak ridge of high pressure drifts across the region.
1038 PM MST Tue Nov 21 2017 Dry air will slowly filter into the region from the west as a ridge of high pressure amplifies over the Desert Southwest. Dispersing cloud cover has allowed temperatures to climb this afternoon with some impressive temperature changes from the past 24 hours with current temperatures sitting some 10 to 15 degrees warmer than this time yesterday. Available moisture in the lower levels of the atmosphere remains scant so am confident in continuing with the previous forecaster's reasoning for just some light snow flurries lingering over the northern mountains through Wednesday.
1158 PM EDT Thu Jun 8 2017 High pressure will maintain VFR conditions into Friday, but expect scattered showers or thunderstorms by mid afternoon as low pressure and a weak frontal boundary move into area. Cloud cover will gradually increase from the northwest overnight with a slight chance of showers after midnight across the far western counties as surface warm front approaches. There will be chance for showers and maybe a thunderstorm across the entire forecast area the first half of Friday as warm front continues to slowly move east. coverage and intensity will pick up a little more during the afternoon and evening with daytime destabilization and a bit more surface convergence as weak low pressure center moves across the Saginaw Valley and Thumb.
933 PM CDT Thu Jun 8 2017 High pressure remains firmly in control this eve w/ dewpoints ranging from the mid 50s to lower 60s down twrds the coast. The area also remains under northerly flow aloft on the backside of an upper low over the eastern US. /issued 252 PM CDT Thu Jun 8 2017/ Latest water vapor imagery shows an upper level trough along the east coast with dry northerly flow around the trough across the forecast area.
939 PM EDT Thu Jun 8 2017 Low pressure will approach from the south tonight and track south of the Gulf of Maine on Friday.
Another fantastic day is on tap for tomorrow, though a few degrees warmer. High pressure remains situated to our west with a dry, cool northerly flow keeping temperatures and humidity down across Middle Tennessee.
1040 PM EDT Thu Jun 8 2017 Southwest breezes have been slow to come down, especially east of the Seven Mile Bridge. A trough over the Florida Peninsula will move slowly northeastward over the western North Atlantic from overnight through Friday night.
The cold front has shifted into eastern Idaho this evening. The upper low centered off the PacNW coast will edge a little closer on Friday, with continued cooler temperatures and more showers/afternoon thunderstorms, mainly across the north. Weekend Outlook: Showers will continue through the weekend with afternoons seeing heavier showers and/or thunderstorms developing mostly in the higher elevations.
935 PM PDT Thu Jun 8 2017 A trough of low pressure will bring continued onshore flow, a deeper marine layer and cooler temperatures by the weekend.
702 PM CDT Thu Jun 8 2017 Upper level low over the eastern half of the CONUS, with a ridge over the Rockies resulting in a moderately amplified pattern aloft, while a stubborn ridge remains in place over the mid Mississippi River Valley. In the immediate term, a quiet night, a couple degrees warmer than last night with some increasing high thin clouds. Tomorrow, a warming trend continues as the upper low moves out and the ridging builds in over the center of the country.
903 PM EDT Thu Jun 8 2017 High pressure will continue to pass by south of the region giving way to a weak cold front.
The area also remains under northerly flow aloft on the backside of an upper low over the eastern US. /issued 252 PM CDT Thu Jun 8 2017/ Latest water vapor imagery shows an upper level trough along the east coast with dry northerly flow around the trough across the forecast area.
855 PM EDT Thu Jun 8 2017 Upper-level low pressure will remain overhead through tonight before moving offshore Friday.
Current watervapor loop over the western United States shows the upper level ridge axis moving into eastern Wyoming and central Colorado this afternoon. As the upper level ridge slides east of the area on Friday, deep southwest flow is expected over the area with even warmer temperatures compared to today with highs in the mid 80's to mid 90's.
828 PM EDT Thu Jun 8 2017 Showers continue to wind down across far eastern Kentucky as the well-advertised upper trough pulls east. High pressure nudging into eastern kentucky from the west will lead to clearing skies this evening and tonight, thus promoting fog development tonight into Friday morning. Overall most locations remain dry this afternoon, but a few showers and thunderstorms have developed along and near the high terrain of SE KY. Ridging will build across the eastern half of the CONUS and remain in place until late in the period, Dys 6-7, when energy associated with an Intermountain West low pressure system will begin to move into the Ohio Valley while the parent low tracks into central Canada.