Aikyam-Lab/Synoptic-Bench huggingface dataset:
946 PM CST Sun Feb 12 2017 Though the cold front is making its way through the area this evening, dewpoints remain in the low to mid 60s across all of Southeast Texas at this hour.
532 PM CST Sun Feb 12 2017 Updated for 00Z aviation discussion 00Z TAF discussion: Cold front is moving through the region as of 23Z. The cold front will continue to push south through the entire region overnight, and it will be accompanied by mostly light showers as the capped airmass will not support any thunderstorm activity. Even with the cooler air moving in tonight and Monday, temperatures will continue to be above normal.
Monday will see highs climb into the 40s in most locations, likely reaching the lower 50s in areas with no snow cover.
As a cold front continues to move air from the north to the south, across West Central Texas tonight, returning low-level moisture, from the south, will ride up and over the cooler air at the surface. /issued 337 PM CST Sun Feb 12 2017/ (Tonight and Monday) Much cooler temperatures across West Central Texas this afternoon with readings in the 60s to lower 70s. Aloft, a strong upper low just west of Baja will be the main player for our area for early this week. Highs will be in the lower 40s across the northwest Big Country to the near 60 across the Northwest Hill Country.
Models have the strong southwesterly flow aloft decreasing overnight with a weak upper trough axis to move into the western CWA by late Monday afternoon.
Dry weather conditions along with seasonable temperatures will persist across the region through the first half of the upcoming workweek as high pressure dominates the weather pattern.
719 PM EST Sun Feb 12 2017 High pressure will slowly weaken tonight over the Western Atlantic waters keeping the weather dry over South Florida.
Mid-level to high level moisture currently over the desert SW will spread north and east overnight as it crests a shallow H500 ridge over the Southern Plains. Interaction between the northern stream trough and the upper low in the southwest may generate enough lift for some light precipitation across portions of the cwa Monday evening.
717 PM EST Sun Feb 12 2017 High pressure east of Florida continues to ridge west over central Florida producing pleasant weather overnight. The high pushes south by Monday afternoon as a weak cold front moves south toward the area.
831 PM CST Sun Feb 12 2017 Clear skies and decreasing NW winds across central and southeast IL this evening as high pressure moves slowly toward southern IL from the southern Plains. Still expecting mid to upper 20s for lows tonight with the cooler air mass that has moved in along with decreased winds. High pressure will build into Illinois on Monday, providing cool and dry conditions. Monday night will see a weak warm frontal circulation extend into southern Illinois from low pressure developing just southwest of Texas, causing increasing cloud cover south of I-74. For now, a dry forecast will continue Monday night, with above normal lows in the low 30s.
At this time, a portion of the CWA, the eastern third, is still observing the highest winds/gusts anticipated for today. Locations from Gary IN back to Pontiac IL are still in this higher axis, but once again, anticipate these higher speeds to steadily push east through the remainder of the CWA over the next couple hours. Clear/Sunny skies then anticipated tonight into Monday with high pressure building overhead.
Blocking pattern across the western CONUS will result in ridging over the northern Rockies and high plains, and quiet weather in our cwa through the short term period. Temperatures will turn gradually warmer.
Surface ridging is building into the Tennessee Valley and southern Appalachians with drier air advecting in. Chattanooga Airport, TN 37 57 35 59 / 10 0 0 10 Knoxville McGhee Tyson Airport, TN 35 53 30 57 / 10 0 0 10 Oak Ridge, TN 34 54 30 56 / 10 0 0 10 Tri Cities Airport, TN 31 48 27 53 / 10 0 0 10 NC.
546 PM EST Sun Feb 12 2017 A cold front will cross the area this evening followed by cool high pressure building in for the first part of the work week.
Cold front boundary currently well north of the TAF sites but will slowly move farther south tonight. Water vapor imagery shows the upper low continuing to move to the southeast toward central Baja California. The upper low will move east tonight and be over northwest Mexico south of the border of southeastern Arizona by 12Z Monday.
515 PM CST Sun Feb 12 2017 Benign weather will continue across the forecast area in the short term with mild days and cold nights as area remains between northern and southern stream troughs. Closed upper low over northern Baja this afternoon will begin to track east into northern Mexico tonight, reaching the southern Rockies and Texas high plains on Monday.
914 PM EST Sun Feb 12 2017 Temperatures are in the low to mid 70s across the island chain, with dew points in the low to mid 60s. The Pulley Ridge buoy reports 2 foot seas in the southeastern Gulf of Mexico. On a broader scale, WV imagery shows a warm-core, cut-off low pressure system digging across the Baja peninsula of California.
108 PM CDT THU AUG 4 2016 The primary focus with the short term forecast is on the cold front currently sliding across nw and northern Nebraska. Highs today will be noticeably cooler with upper 70s across our north.
A cold front is racing south and is currently in southeast Colorado. In addition, a weak cold front will enter the Oklahoma Panhandle and northwest Texas Panhandle late this evening, with winds becoming north at KGUY and KDHT. Water vapor shows a subtle upper level low spinning over the Four Corners region - temporarily shifting the flow more northwesterly across the Panhandles.
328 PM CDT THU AUG 4 2016 Scattered convection is circulating around an upper trough axis which resides across the mid state this afternoon. On Friday, airmass looks drier as the aforementioned trough axis will be located east of our area.
With some mixing expected in the low levels, low cigs may be more of an issue than fog.
Upper level ridging build over the region overnight tonight. Ridging begins to slip east by mid afternoon.
High pressure centered over the Great Lakes continues to influence the Chicago area as upper level temperatures are up to +10C at H7. Larger scale forcing due to a closed 500 mb low over Manitoba will help fuel a cold front trucking across the Midwest overnight. The post frontal airmass will feature NW winds with max temps in the low to mid 80s. The cold front is expected to lay out along the Ohio Valley Friday night while high pressure builds into the Upper Midwest and western Great Lakes regions. Afternoon highs are expected to top out in the low 80s, except along the lake front where onshore flow and afternoon lake breezes will keep temps in the 70s.
329 PM CDT THU AUG 4 2016 Main feature aloft this afternoon continues to be the low pressure system sliding east across southern Canada, now having moved into far western portions of Ontario. Generally zonal flow remains in place across the Central Plains, with the main impact from that system being the accompanying surface cold front sliding south today. The cold front currently moving through the CWA will continue sliding south tonight, with models in pretty good agreement showing it outside of the CWA by midnight and into southern KS by sunrise Friday. Aloft, high pressure remains in place over the Southern Plains, but it's a weakly amplified high, keeping flow across the Central Plains zonal. Winds across the area will be easterly, and with plenty of cloud cover expected, cooler temperatures are expected.
A weak northern stream 500MB short wave trough will drop SSE over FL, forming a weak low center overhead, where a col already exists.
225 PM EDT THU AUG 4 2016 Warm and humid conditions along with periodic shower and thunderstorm chances are expected until the passage of a Friday night cold front. Fries A swath of dry air will be advancing northeastward ahead of an incoming trough on the backside of the ridge that will be advancing across the area on Friday. This area of clearing is coincident with the low level thermal ridge, where 850 mb temperatures are set to surpass 20C on basically all guidance.
113 PM EDT THU AUG 4 2016 A cold front will push across the area Friday night.
Afternoon high temps will range from the low to mid 90s along the coast to several degrees above the century mark inland west.
334 PM CDT THU AUG 4 2016 Upper level pattern shows one high pressure situated west of the CWA across central Texas and another in the western Atlantic Ocean. The closer proximity of the ridge to the west will have some influence of rain chances across the CWA. Increased subsidence near to the high pressure will reduce coverage closer to the Atchafalaya Basin vs points farther east. Dewpoints will remain high, upper 70s to 80 and highs in the lower to mid 90s the next couple days.
144 PM EDT THU AUG 4 2016 High pressure slowly slides offshore through Friday.
555 PM CDT THU AUG 4 2016 Main feature aloft this afternoon continues to be the low pressure system sliding east across southern Canada, now having moved into far western portions of Ontario. Generally zonal flow remains in place across the Central Plains, with the main impact from that system being the accompanying surface cold front sliding south today. The cold front currently moving through the CWA will continue sliding south tonight, with models in pretty good agreement showing it outside of the CWA by midnight and into southern KS by sunrise Friday. Aloft, high pressure remains in place over the Southern Plains, but it's a weakly amplified high, keeping flow across the Central Plains zonal. Winds across the area will be easterly, and with plenty of cloud cover expected, cooler temperatures are expected.
An upper level low centered over the central British Columbia Coast will drop south to around Vancouver Island on Friday.
Tonight Through Friday Cooler high pressure will remain over the area tonight. Lows will be warmer than last night but some local freezing temperatures may still occur in the mountain valleys of the west.
240 PM CDT THU AUG 4 2016 Cold front has pushed southward and is now right just about to the northern Oklahoma Panhandle. Some of the thunderstorms may become strong to marginally severe as the front enhances the low level wind shear.
412 PM CDT THU AUG 4 2016 Hot and humid across the Four State Region this afternoon under a large upper level ridge of high pressure centered over central Texas and expanding across most of the Southern Plains and into the Middle Mississippi Valley. Showers and thunderstorms have developed around the Northeast, East, and Southeast outer periphery of the ridge across Arkansas and parts of North Louisiana, and over Mississippi and Southeast Louisiana. Over the next several days the upper level ridge will be shifting east gradually with a continued trend of near 100 degree temperatures with humidity levels high enough to keep the heat index values above 105 degrees into the later parts of the weekend.
301 PM CDT THU AUG 4 2016 Surface cold front was in the process of moving through the area this afternoon and at 19z extended from northwest Iowa through east central Nebraska into southwest Kansas.
Of course, we can't rule out a quick spin up tornado if the low level flow aligns just right with a bowing line segment. The cold front that is currently over southeast MN will make its way across southern WI this evening. The main cold frontal boundary is still back in south central MN.
135 PM EDT THU AUG 4 2016 Warm and humid conditions along with periodic shower and thunderstorm chances are expected until the passage of a Friday night cold front. Fries A swath of dry air will be advancing northeastward ahead of an incoming trough on the backside of the ridge that will be advancing across the area on Friday. This area of clearing is coincident with the low level thermal ridge, where 850 mb temperatures are set to surpass 20C on basically all guidance.
Surface ridging will continue across the southern half of the peninsula through the weekend as a trough settles across the deep south.
The stronger cold front is showing up on the radar at Columbus to south of Wayne. Behind the stronger cold front, the temperatures are in the upper 70s and lower 80s and the dewpoints range from the lower 70s to around 50 over a 2 to 3 county width area. Highs in the lower to mid 90s with heat index values 100 to 106 ahead of the first wind shift. A cold front poised to the northwest at 07z from extreme northwest NE through eastern ND will continue to make progress into the forecast area today and then settle south of the region through the weekend. Will have rain chances increases today as the front moves in, which will also delineate cooler and below normal temps behind the front, but still hot and quite humid ahead of it.
250 PM EDT THU AUG 4 2016 High pressure will keep mainly clear and dry weather over the area into Friday.
Convective trends thus far today have focused on the ridgelines/ridgetops; storm motion for on-going convection west of Phoenix should favor a movement to the northeast while very weak steering flow to the south/east favors little movement. Drying trends continues Friday as flow becomes more S/SW around broadening anti-cyclone over Texas and troughing over California. Mixed-layer CAPE drops into the few 100s except for the higher terrain NE of PHX where we'll hang on to some low end precip chances.
This evening starts with an upper ridge in place over the Divide with local flow aloft from the west to northwest.
Synoptically a cold front will move through the CWA tonight. Still will see breezy winds on Friday out of the northwest due to the tightened pressure gradient behind the departing system and high pressure building in behind it.
1158 AM MDT THU AUG 4 2016 A strong cold front continues to track across southeast WY and the western NE Panhandle early this morning. H7 temps are progged to fall below +10C over the high plains by 21z, and good saturation in the H7-H3 layer suggests persistent mid level cloud cover, and limited surface heating.
Surface temperatures are running about 5 degrees warmer today than same time yesterday, so middle to upper 90s likely everyone. Weather maker today will be a short wave trof tracking east across Kentucky. A cluster of storms on the southern edge of the short wave trof was approaching northwest Alabama. 92 Generally scattered showers and thunderstorms are expected through the week with highs in the lower to middle 90s.
Numerous showers and storms continue to impact the southwest portion of the forecast area this morning, aided by a compact upper low near the Indiana/Kentucky border and abundant low- and mid-level moisture. We expect the ongoing activity to continue to diminish in coverage and intensity later this morning as the upper low pulls eastward. High-resolution models generally support this scenario and show the highest coverage of convection across the Cumberland Plateau. We may have to re-visit high temperatures again early this afternoon as clouds and ongoing convection may keep highs cooler than forecast, especially across the southwest.
136 PM EDT THU AUG 4 2016 A cold front will push across the area Friday night.
1238 PM CDT THU AUG 4 2016 A short wave and associated low pressure system will exit the northern Rockies overnight creating a strong southerly push of warm air and rising heights over the midwest ahead of a cold front. This warm air advection in the low levels will mix down to the surface creating an area of high temperatures and dewpoints. High temperatures are expected to be in the mid 90s with dewpoints in the low 70s which push heat indices into the 105-107F range. This heat will not last long as a cold frontal boundary makes its way into the NW portions of the CWA Thursday night into Friday morning. The upper level jet remain mostly zonal along the northern US leading to this cold front becoming a stationary boundary quickly as it's parent low moves off to the east.
High pressure east of Long Island will move further off the coast tonight and Friday.
A cold front will then drop through the region Friday into Friday night, with additional thunderstorm chances. The cold front will drop toward the region Friday morning and move through the area Friday into Friday evening.
243 PM CDT THU AUG 4 2016 Atmosphere remains primed for potentially strong to severe thunderstorms this afternoon and early evening along and south of I-90 as a cold front sweeps across the region. Lingering activity from last night's convection has moved east of the forecast area with a secondary line of showers and thunderstorms ahead of the cold front from east of Austin to near Winona, moving east- southeast around 30 mph. Temperatures will be much cooler with afternoon highs only in the mid 70s to lower 80s. Continued dry and pleasant conditions for the weekend with high pressure dominating the regional weather pattern.
The main cold frontal boundary is still back in south central MN.
323 PM CDT THU AUG 4 2016 Cold front is making steady progress across MN this afternoon, with dewpoints eventually falling into the upper 50s across western MN. Tonight and tomorrow, persistent NW winds from high pressure coming out of the nrn/Canadian Rockies will bring in much more pleasant air for the rest of the short term. High pressure will be in full control by tomorrow evening and will make for a very quiet weekend weather wise.
A cold front will slowly drift southward across much of western Kansas tonight with the highest rainfall chances north of Dodge City and up around Syracuse to Hays. Rainfall estimates could exceed an inch or two in that area of best isentropic lift north of the cold front. For Friday, the cold front will be near or just south of Medicine Lodge with a continued small chances for showers and thunderstorms with mostly cloudy skies.
217 PM EDT THU AUG 4 2016 High pressure will keep mainly clear and dry weather over the area into Friday.
Water vapor shows a drier airmass slowly edging in from the SE, which along with the relatively warm atmosphere and ridge axis overhead, doesn't suggest much in the way of lingering showers and storms. With the low level ridge axis overhead, southerly flow will be fairly light allowing both seabreezes to move inland.
330 PM EDT THU AUG 4 2016 High pressure will remain anchored just offshore through Friday, circulating warm and increasingly humid air into the region.
333 PM CDT THU AUG 4 2016 Showers and isolated thunderstorms moving through the area the remainder of this afternoon and into the early evening along the cold front. A really nice Friday taking shape as surface ridging continues across the area.
402 PM EDT THU AUG 4 2016 A ridge of high pressure overhead will keep it mainly dry and seasonably warm into Friday.
402 PM EDT THU AUG 4 2016 A weak frontal boundary along the southeast coast will remain well south of the local area through Friday, as high pressure becomes centered well off the New England coast.
Upstream of the area, an area of low pressure was moving across Ontario with a cold front trailing south into the Plains. Outside of these showers and any thunderstorms some breaks in the clouds will occur and with a moist airmass in place in the lower levels patchy fog will develop and might become dense in a few spots.
348 PM CDT THU AUG 4 2016 The area is cooking this afternoon under a large dome of high pressure. Temperatures were in the mid to upper 90s inland to the lower 90s along the coast.
The upper pattern across the region is defined by an inverted trough aligned along the Sonora MX/Chihuahua MX border moving into Cochise county, a trough of low pressure along the West Coast and an upper ridge over Texas. The latest KEMX radar imagery indicated showers and thunderstorms had developed to the south and southeast of Tucson ahead of the approaching inverted trough. Initially these storms hugged the higher terrain with the lack of any steering flow. we will begin to see gradual drying from the west the next couple of days as the trough along the west coast brings about a southwesterly flow to the west of Tucson.
312 PM EDT THU AUG 4 2016 A ridge of high pressure overhead will keep it mainly dry and seasonably warm into Friday.
1242 PM CDT THU AUG 4 2016 Still seeing a few scattered showers across the far southeast CWA in vicinity of the departing cold front. Will see cooler conditions today along with much less humidity.
315 PM CDT THU AUG 4 2016 Subjective analysis shows a cold front draped from central Kansas into southwestern Kansas this afternoon. This front is associated with an upper level trough situated over southeast Manitoba province moving east, which will provide the push of this front into eastern Kansas later this evening. With dewpoints in the lower 70s, heat indicies have ranged from 105-110 degrees across portions of eastern Kansas. Temperatures tomorrow will be much cooler in comparison to today due to the frontal passage. Expect highs to range from the lower 80s in northern Kansas to upper 80s in central Kansas.
A digging trof over the core of the country will allow for a re-enforcing and with soundings indicating significant drying finally taking place across the area.
Spatial cross-sections show limited moisture in the high country tonight and Tuesday. Best chc of snow will be along the higher west facing slopes north of interstate 70. Otherwise, areas of blowing snow associated with strong winds will be the primary issue over the higher mountain passes. A cold front will push into the region from the north and east Tuesday morning.
/issued 310 PM CST Mon Dec 12 2016/ A weak cold front will pass through Oklahoma and north Texas late tonight and early Tuesday.
/Tonight through Tuesday/ Strong short wave energy and focused area of theta-e advection is moving into central Iowa this afternoon and early evening in advance of an arctic cold front that will arrive tonight. A dry layer remains below the region of forcing as evidenced by the high temperature and dew point depressions of 10 to 17 degrees with the dry layer extending up to near 8 kft. Another region of snow is moving south along the cold front and is moving into far northwest Iowa and is associated with a region of expanding stratus that will enter northern Iowa. Temperatures will fall below freezing again tonight over the north. /Tuesday night through Monday/ Relatively quiet weather into Tuesday night prior to the arrival of the boundary with slightly warmer readings overnight than previous nights.
Next in the series of dry cold fronts will reach the Hays vicinity around 9-10 pm, and clear the remainder of SW KS by 3 am Tuesday. The NE zones, deepest in this colder airmass, will struggle to get above freezing Tuesday afternoon.
/issued 247 PM CST Mon Dec 12 2016/ SHORT TERM (Tonight through Tuesday Night): A weak cold front that moved into the western half of the CWA has stalled as an area of low pressure has developed across the coastal sections this afternoon.
825 PM EST Mon Dec 12 2016 Low pressure will exit across the maritimes overnight. Weak high pressure will build across the region on Tuesday.
At the surface, an arctic cold front is forecast to move slowly southwestward.
1016 PM EST Mon Dec 12 2016 Rapidly moving low pressure will spread some light snow over the Upper Ohio Region on Tuesday, and will usher in an arctic airmass for late week. Lowering dewpoints are sweeping eastward through the area late this evening, with clouds breaking up even in the ridges. Lacking a low ceiling, boundary layer saturation, and given low level lapse rates unstable enough to nearly approach the bottom of the dendritic layer, the threat of freezing drizzle is basically nil. The freezing rain advisory for the ridges has thus been cancelled.
645 PM EST Mon Dec 12 2016 High pressure will provide dry conditions tonight with lows in the teens to low 20s. An arctic cold front will bring increasing chances for a period of light snow to areas mainly along and southeast of Route 24 on Tuesday.
624 PM EST Mon Dec 12 2016 A cold front crossing the Ohio Valley will move through the area tonight and become nearly stationary across Georgia. The front will move back north as a warm front Tuesday.