Aikyam-Lab/Synoptic-Bench huggingface dataset:
Clear skies and seasonable temperatures prevailed across the lower Ohio Valley thanks to high pressure centered over the lower Appalachians.
713 PM EDT Thu Oct 19 2017 High pressure will dominate aviation conditions as it migrates through the Great Lakes tonight through Friday. Dewpoints have tumbled into the mid 20s and 30s behind a weak cold front supporting a dry boundary layer while steadily increasing subsidence ensures clear skies through the column. High confidence that the southern half of the CWA will decouple with temperatures falling toward the cooler MET/MAV numbers.
1154 PM EDT Thu Oct 19 2017 High pressure will remain over the eastern CONUS through the upcoming weekend.
Tonight will be a couple of degrees cooler than last night and those around bodies of water should experience fog once again tomorrow morning.
Dry conditions will continue through the day Friday as we remain underneath a mid- to upper-level ridge pattern.
/issued 324 PM CDT Thu Oct 19 2017/ Weak mid/upper level low apparent on satellite imagery, supported by southern jet, is moving slowly NNE out of SE New Mexico into the South Plains and will eventually weaken as it moves through the Texas Panhandle into Oklahoma over the next 24 hours. Whatever energy remains from the low, will get absorbed into the more potent Pacific trough that will shift off the Pacific Ocean later tonight, with the base spreading across northern California. The negatively tilted trough is struggling to produce much more than thick mid/upper level cloud cover today across our CWA with dewpoint depressions of 25 to 35 degrees holding steady at the surface.
Otherwise, VFR conditions with surface ridging produce light/calm winds through the forecast period.
With increasing moisture and more general cloud cover tonight, temperatures will be warmer, with lows only getting into the low to mid 60s for most of the area.
Breezy east winds will continue along the coast tonight, while inland winds will decouple and have gone calm across parts of inland SE GA as high pressure strengthens over the region from the north. Dry air that mixed down over the area today lowered dew pts in the low/mid 50s across inland SE GA from Douglas toward Hazlehurst, and expect these locations will easily drop into the low 50s for low temperatures tomorrow morning. Normally cooler locations could reach the upper 40s across inland SE GA. Advisory conditions continued for both near and offshore legs with evening wind reports gradually decreasing as high pressure builds in from the north and relaxes the local pressure gradient.
837 PM EDT Thu Oct 19 2017 High pressure will remain centered to the north of the state for the next several days, keeping winds generally out of the NE, with some gusty conditions mainly in the late morning through evening hours. Overnight lows on track to fall into the mid to upper 60s north, to the lower to mid 70s central and south. High pressure to the north will remain across the area for the next several days, with the center slowly shifting east over the weekend turning winds more to the east.
There is no precipitation on the area radars right now but new leave leave the minor pops going over the high mountains for later tonight. GOES WV shows PV center at base of upper trough moving NE over the four corners region. Main branch of the trough will move into the region by Friday morning bringing increased SW winds. Winds will pick up ahead of the trough over portions of southern Denver and the plains with sustained winds from 12 to 17 mph and gusts to 30 at times.
Expect readings to get a few degrees warmer this afternoon before starting to fall off this evening. Dry weather continues under a ridge that moves out as a trough approaches this weekend.
/28/ Through Friday: A ridge axis will continue to move east through the ArkLaMiss the rest of today and will be situated to our east on Friday. Mostly sunny skies with warm temps in the low 80s will persist the rest of this afternoon. The coolest temps will be realized across the Golden Triangle and northeastern portion of the CWA with high clouds and higher dewpoints helping to keep warmer temps in the low to mid 50s across the southwest Delta. Anomalous H850 temps in the 90th percentile will continue and help daytime max temps once again reach the low 80s Friday afternoon.
718 PM EDT Thu Oct 19 2017 High pressure will remain from the mid Atlantic to the Tennessee Valley today while a weak, dry cold front pushes southeast into the Great Lakes. The front will wash out tonight, while high pressure strengthens over the Ohio Valley into Friday.
/issued 252 PM CDT Thu Oct 19 2017/ High pressure remains in control of the current Midsouth weather with light south winds running temperatures in the mid and upper 70s. about 3 to 5 degrees warmer than yesterday.
High pressure will continue to shift eastward slightly toward western Virginia overnight. This actually looks reasonable based on the flow around the high from northern Georgia/South Carolina.
Isolated to scattered showers and thunderstorms are expected again tomorrow with the greatest chances over the Coastal Waters and the Victoria Crossroads as the highest moisture will be confined to the northeast areas of the CWA.
926 PM EDT Thu Oct 19 2017 Temperatures are generally in the 50s this evening across the region with a few locations still in the low 60s. Clear skies and seasonable temperatures prevailed across the lower Ohio Valley thanks to high pressure centered over the lower Appalachians.
Heights aloft continue to decrease with strengthening southwest flow and a quickly approaching cold front nearing our western counties in the afternoon.
740 PM EDT Thu Oct 19 2017 High pressure will dominate the weather through the weekend.
Surface analysis from 00 UTC shows an area of high pressure over Eastern Tennessee, about near Knoxville. With the high still off to our north and the gradient not particularly relaxed across the Florida zones, expect the low temperatures to be similar to or a little warmer than last night, in the low to mid 60s in Florida and into the mid to upper 50s in Srn GA/AL.
627 PM CDT Thu Oct 19 2017 Upper level ridging will spread across the area tonight as troughing deepens over the Rockies.
/issued 247 PM CDT Thu Oct 19 2017/ SHORT TERM (Now through Friday night): The H5 trough continues to sweep into the western half of the US, with the first wave just now moving northeast into central Texas. Morning sounding showed moisture is trapped in the lowest 5000 feet, with strong dry air cap above. Light winds and ample moisture at the sfc will lead to some patchy ground fog in grassy areas tonight, but if the drier air can focus llvl moisture closer to the sfc, some more denser fog might be a possibility for the lower valley around sunrise.
The upper trough driving the front will break to the east of the area Friday and a broad and flat long wave ridge will build in from the southwest.
Overnight lows will be a few degrees warmer tonight and some isolated areas of patchy fog cannot be ruled out briefly before sunrise given the expected light to calm winds. Prior discussion below: Through Friday: A ridge axis will continue to move east through the ArkLaMiss the rest of today and will be situated to our east on Friday. Mostly sunny skies with warm temps in the low 80s will persist the rest of this afternoon. The coolest temps will be realized across the Golden Triangle and northeastern portion of the CWA with high clouds and higher dewpoints helping to keep warmer temps in the low to mid 50s across the southwest Delta. Anomalous H850 temps in the 90th percentile will continue and help daytime max temps once again reach the low 80s Friday afternoon.
621 PM PDT Thu Oct 19 2017 The forecast will remain wet and breezy at times tonight through Friday as a low pressure system slowly sags through the region.
While 850mb temps are a bit cooler Fri than today, highs likely to reach mid, even upper, 70s with aide of strong WAA.
A strong cold front will bring substantially cold temperatures to Utah through the first half of the weekend.
738 PM EDT Thu Oct 19 2017 A cold front will cross the region tonight and will be followed by high pressure on Friday.
641 PM CDT Thu Oct 19 2017 140 PM CDT A quiet night ahead with the high pressure ridge shifting from overhead this afternoon to east of the area by daybreak. A slight south wind late will ease the rate of cooling with lows forecast in the mid-upper 40s in outlying locations, to the lower to mid 50s in the metro. Warmer air pushing across the region and sunny skies on Friday will support above normal temps well into the 70s.
1000 PM EDT Thu Oct 19 2017 A weak and dry cold front will wash out overnight, while high pressure strengthens over the Ohio Valley into Friday.
Weak high pressure moves away with a return south flow.
Increased cloud cover will limit radiational cooling this evening so overnight lows will be several degrees warmer than previous nights. Friday will see the continued tightening of the southwesterly wind gradient as the upper level Pacific trough and associated cold front dig into the Great Basin. The cold front will begin to move through northeastern Utah Friday evening with scattered to numerous showers developing along and ahead of the boundary, though the higher terrain will be favored for activity.
Windy and cooler conditions are expected Friday as a weather system and associated cold front move through the region.
Slightly negative tilted upper level trough axis continues to nose its way into the TX Hill Country with a slowly retreating ridge across SE LA expected to continue moving eastward overnight as the trough axis approaches. While the high clouds are plentiful attm, they are thin, especially across our eastern and northeastern zones. /issued 414 PM CDT Thu Oct 19 2017/ Southeast winds have made a comeback, bringing a return in southerly flow in the low levels across the region. This will be very noticeable over the next couple of days as high temperatures will run some 5 degrees warmer compared to the past couple of days along with higher dewpoints,which will result in higher relative humidities.
852 PM CDT Thu Oct 19 2017 Pleasant weather conditions to continue through tomorrow as high pressure at the surface and aloft hold across the region.
1257 AM EDT Fri Oct 20 2017 A cold front will cross the region overnight.
A cold front is stretched across the Columbia Basin south to Central Oregon at this time and will be moving east through the night.
506 PM MDT Thu Oct 19 2017 Broad upper ridge covers much of the CONUS, with mostly sunny to partly cloudy skies over the northern plains. At the surface, weak lee trof extends across Montana into northeast Wyoming and western South Dakota. An upper level trof will cross the Rockies Friday night with a strong cold front moving through the northern Plains.
718 PM EDT Thu Oct 19 2017 High pressure will remain over the eastern conus through the upcoming weekend.
1042 PM MDT Thu Oct 19 2017 Broad upper ridge covers much of the CONUS, with mostly sunny to partly cloudy skies over the northern plains. At the surface, weak lee trof extends across Montana into northeast Wyoming and western South Dakota. An upper level trof will cross the Rockies Friday night with a strong cold front moving through the northern Plains.
914 PM EDT Thu Oct 19 2017 High pressure will remain over the eastern CONUS through the upcoming weekend.
1153 PM EDT Thu Oct 19 2017 Mostly clear sky and light wind will dominate aviation conditions as high pressure migrates through the Great Lakes during the night through Friday evening. Dewpoints have tumbled into the mid 20s and 30s behind a weak cold front supporting a dry boundary layer while steadily increasing subsidence ensures clear skies through the column. High confidence that the southern half of the CWA will decouple with temperatures falling toward the cooler MET/MAV numbers.
Weak high pressure moves away with a return south flow. Weak high pressure moves away with a return south flow.
940 PM EDT Wed Oct 11 2017 Atlantic high pressure will prevail into Thursday.
SFC winds are expected to gradually veer to the east as high pressure drifts over the heart of the area. /issued 300 PM CDT Wed Oct 11 2017/ Water vapor imagery shows a ridge of high pressure dominating the weather pattern over the South this afternoon. Most locations will stay in the 70s today, near or slightly below normal, with just other southern counties and parishes possibility pushing into the lower 80s in the next hour of two.
616 PM CDT Wed Oct 11 2017 Low clouds are dissipating in a general west to east fashion this afternoon with surface ridging sitting over the area. But timing the clouds exiting and the winds increasing on the backside of the ridge is uncertainty still.
/Issued 318 PM EDT Wed Oct 11 2017/ The unseasonably warm weather will continue through the short term with only a mild reprieve as a weak cold front brings a slightly drier airmass to the northern half of the area.
705 PM CDT Wed Oct 11 2017 A mid-level ridge over the western Great Lakes and Ontario will continue to shift east overnight into Thursday. It's cold front will move into the northern High Plains overnight and into the Dakotas Thursday. An inversion due to strong warming aloft, combined with a surge of moisture in the low-levels, is expected to develop widespread overcast cloud cover by late tonight, especially areas of east of central and north-central Minnesota. Fog is possible along and near the higher terrain of the North Shore because of the low stratus. Highs will range from the middle 50s in the Arrowhead and upper 50s in northwest WI, to the low 60s in central and north-central MN.
19Z water vapor imagery shows an upper trough over the Pacific Northwest with a flat upper ridging along the Gulf Coast. At the surface, a ridge axis was sliding east of the area as high pressure weakened. Except for areas where the stratus has lingered, dewpoints have mixed out into the lower and middle 40s. For highs Thursday, have trended them warmer. Initial upper wave pushing east across the northern Plains settles a cold front into the area late Thursday night, with all guidance agreeing it will hang up across the area for the next few periods as it becomes parallel to the mid- and upper-level flow.
Proton Previous Discussion: Main weather maker will be the cold front that moves east through the CWA this evening. Despite more sunshine, temperatures will average about 15 degrees cooler than today.
911 PM MDT Wed Oct 11 2017 Not many changes needed other than to adjust winds over the metro area due to a weakening Denver Cyclone, and a slight tweak to cloud cover for this evening. A west-southwest flow aloft will persist through Thursday as an upper level trough moves across the Pacific Northwest and into the Northern Rockies. This will usher warmer air into Colorado. Lows tonight should stay above freezing except over the higher terrain and mountain valleys. A weak cold front may sneak into far northeast Colorado late Thursday afternoon bringing slightly cooler air late in the day.
918 PM CDT Wed Oct 11 2017 Upper-level ridge maintaining clear skies across the region. SFC winds are expected to gradually veer to the east as high pressure drifts over the heart of the area.
/issued 327 PM CDT Wed Oct 11 2017/ (Tonight and Thursday) High pressure will dominate West Central Texas tonight and tomorrow. Lows tonight will be slightly warmer than lows this morning, with some clouds moving over West Central Texas late tonight. This low-level pattern shift will help create afternoon highs tomorrow in the 80 to 85 range.
759 PM EDT Wed Oct 11 2017 High pressure will build across the region overnight through Thursday night.
1053 PM MDT Wed Oct 11 2017 Broad upper trough covers the western CONUS, and cirrus clouds are streaming through southwest flow into the northern plains. At the surface, a trough stretches across the western Dakotas and eastern MT/WY. However, a cold front will begin crossing the area late tonight, and so western portions of the area will reach the 30s. The cold front will slowly move through the region on Thursday, creating gusty northwest winds across much of western SD. Temperatures will range from the 50s across the northwestern third of the CWA to the lower 70s across south central SD.
754 PM PDT Wed Oct 11 2017 Cooler and showery weather is expected for the rest of the work week.
847 PM CDT Wed Oct 11 2017 Somewhat drier air has filtered across the Tennessee Valley this evening in the wake of a cold front passage earlier today. High pressure centered over the mid Mississippi Valley will drift eastward, controlling the general weather for the Tennessee Valley. Night time lows will be substantially cooler, with temperatures towards daybreak cooling into with low/mid 50s with light winds from the north. The weather looks dry and seasonable for Thursday, with high pressure building to the north of the area. The pattern gets more complicated heading into the weekend, as a wedge ridge sets up in the lee of the Appalachians.
But low level convergence will increase later tonight closer to the coast as the boundary moves slowly westward as coastal trough. Frontal boundary stalled over the northwest Gulf of Mexico will become a coastal trough that will move back toward the coast Thursday morning. The coastal trough will move inland over the coastal plains Thursday afternoon.
640 PM CDT Wed Oct 11 2017 North and Central Texas will remain under the influence of a healthy upper ridge for the next few days, meaning benign weather and VFR conditions are expected for the duration of this forecast. At the surface, high pressure is currently sliding across the region. Light and variable winds near the ridge axis will become light southeasterly in a few hours as the ridge shifts farther east. It will be warmer with highs in the 80s.
/issued 142 PM CDT Wed Oct 11 2017/ Broad east-west upper level Anticyclone continued to stretch westward from the deep south into southeast Texas.
1059 PM EDT Wed Oct 11 2017 High pressure will build across the region overnight through Thursday night.
Latest trends suggests southward and eastward development in regard to the low level stratus. Otw, current temps range from the upper 50s northwest and north central sections to the lower 60s east and south. Ridging influences sfc/aloft will result in VFR/SKC all terminals by 12/20Z.
1132 PM CDT Wed Oct 11 2017 An upper level ridge will continue across the central and eastern US through Thursday. Plenty of sunshine will allow temperatures to easily rise into the low to mid 70s by late afternoon.
1154 PM CDT Wed Oct 11 2017 Low clouds are dissipating in a general west to east fashion this afternoon with surface ridging sitting over the area. But timing the clouds exiting and the winds increasing on the backside of the ridge is uncertainty still.
So with the low level flow becoming northerly up to cloud tops.
Warm air advection ahead of an energetic upper level trough located over the Western US was warming temperatures into the upper 60s over parts of western and central North Dakota this afternoon. Strong mixing ahead of the trough has also led to breezy conditions across the central part of the state and the James River Valley. A strong dry cold front will approach from Montana and sweep across the state early Thursday. Strong cold air advection behind the front will help lows in the west and north fall into the lower to upper 30s. Further east, lows will generally be in the low to mid 40s. Behind the quick moving cold front, breezy conditions will develop once again over much of western and central North Dakota through the afternoon hours on Thursday.
/issued 941 PM CDT Wed Oct 11 2017/ A few showers continue over the Lower Atchafalaya Basin into the adjacent coastal waters. high pressure building in with light northerly flow will bring a dry and comfortable night across the forecast area. /issued 325 PM CDT Wed Oct 11 2017/ Mid-afternoon sfc analysis shows the cold front extending from low pressure over the Midwest through the sern CONUS to the n-cntl Gulf off our coast. while high pressure is currently noted over the srn Plains. Water vapor imagery shows troffing aloft in place from nrn old Mexico across the Gulf Coast region to the wrn Atlantic. The ridging has kept cloudiness at bay with mainly just a little cu in the slightly moister sern zones noted in visible imagery. The forecast remains rain-free into the weekend as high pressure holds sfc/aloft initially.
638 PM CDT Wed Oct 11 2017 An upper level ridge will continue across the central and eastern US through Thursday. Plenty of sunshine will allow temperatures to easily rise into the low to mid 70s by late afternoon.
823 PM EDT Wed Oct 11 2017 Low pressure will pass well south of New England tonight as high pressure continues to build over the region.
Low clouds temporarily eroded over the higher elevations of the Cumberland Plateau this afternoon, helping to boost temps a bit, into the lower 70s. As low level southerly flow resumes Thu evening, and CAA ends, skies are expected to clear, allowing one more night in the lower 50s.
Temperatures have gradually cooled today in response to the cold front that has been moving through Middle Tennessee. Clouds have been broken to scattered for the eastern half of area this afternoon which has partially contributed to the warmer temperatures for some areas east of I-65.
1002 PM EDT Wed Oct 11 2017 An area of low pressure will track along a front and push the front well to our south tonight and Thursday.
941 PM CDT Wed Oct 11 2017 A few showers continue over the Lower Atchafalaya Basin into the adjacent coastal waters. high pressure building in with light northerly flow will bring a dry and comfortable night across the forecast area. /issued 325 PM CDT Wed Oct 11 2017/ Mid-afternoon sfc analysis shows the cold front extending from low pressure over the Midwest through the sern CONUS to the n-cntl Gulf off our coast. while high pressure is currently noted over the srn Plains. Water vapor imagery shows troffing aloft in place from nrn old Mexico across the Gulf Coast region to the wrn Atlantic. The ridging has kept cloudiness at bay with mainly just a little cu in the slightly moister sern zones noted in visible imagery. The forecast remains rain-free into the weekend as high pressure holds sfc/aloft initially.
Low level moisture is still high enough that some patchy fog will be possible again tonight, with the highest chances over the northern portions of the Nature Coast. An inverted trough approaching Florida from the southeast will allow moisture to return to Southwest Florida Thursday afternoon, leading to scattered showers or storms, although the rest of the area is expected to remain rain free once again. High pressure will continue to hold north of the waters, with generally easterly flow persisting.
828 PM EDT Wed Oct 11 2017 Crossing low pressure will bring occasional showers to the area through tonight. Light rain chances will continue Thursday before the low dissipates. convection holding on just ahead of surface cold front.
A trough of low pressure over the region will provide cooler temperatures with breezy to gusty conditions through the end of the week.
Low pressure aloft will keep the weather pattern cool and unsettled through Thursday.
Frontal boundary stalled over the northwest Gulf of Mexico will become a coastal trough that will move back toward the coast Thursday morning. The coastal trough will move inland over the coastal plains Thursday afternoon. Deterministic GFS/NAM/ECMWF consistent with predicting an upper pattern characterized by an upper disturbance spreading across the NWRN CONUS/Rockies while an upper ridge persists over TX/SERN CONUS during the period.
The low-level wind shear threshold could be briefly met at KGAG and KWWR between 08-12 UTC as a low-level jet veers. The lowest mesonet temperature was 33F at Buffalo. The focus will shift to deep trough moving onshore in the Pacific Northwest now.
Expect the cold front to drift south of all taf sites overnight and Thursday.
738 PM EDT Wed Oct 11 2017 Atlantic high pressure will prevail into Thursday.