Aikyam-Lab/Synoptic-Bench huggingface dataset:
1145 PM CST Wed Nov 9 2016 Upper level high pressure remains in control across the region, and will through Thursday. Lows will drop into the upper 20s in the lower elevations like the Platte River valley, with mid to upper 30s elsewhere. A Pacific cold front will cross the area early Thursday morning. As this occurs expect a rapid rise in temperatures as warmer air aloft is mixed to the surface. Then expect temperature to steady or fall some as cold air advection develops behind the cold front during the afternoon hours.
Tonight and Thursday Region continues to reside under NE side of large upper ridge that is centered over the Rockies. This will allow cooler air to move in with moderate cold air advection behind associated surface front late Thursday.
We should see some scattering of the skies later tonight from the northeast as some drier air pushes in, so temperatures will cool into the lower-60s. The upper level low over northern Mexico and west Texas will retrograde further west away from the region. Scattered light showers have been progressively streaming across the marine zones and South Texas today with a weak coastal trough maintaining north/northwest flow at the surface. As the upper low retrogrades further away from the region moisture will gradually decrease.
Breezy to windy conditions will occur through Thursday due to a low pressure system just southeast of the area.
337 AM EST Thu Nov 10 2016 A Canadian cold front will bring a few light rain or snow showers to NY and PA tonight into Friday.
The coolest spots should be in the northwest where overnight lows will reach the lower 40s by sunrise. /ISSUED 321 PM CST Wed Nov 9 2016/ The slow-moving cold front which pushed through North and Central Texas appears to have become stationary just south of the region. Meanwhile, an upper low over far West Texas will shift slowly west into Northern Mexico through the end of the work week. Precipitation will gradually diminish overnight as the low moves farther away, the front starts losing its identity and lift simply comes to an end. Similar conditions will occur Thursday night into Friday, though probably a few degrees warmer on Friday due to less in the way of cloudcover expected.
High pressure is settling over the region. High pressure will be centered over the Mid-South by 12z Thursday. High pressure remains over the Mid-South with light winds through the end of the week. A dry cold front will move through Friday night turning winds back to the north.
1201 AM EST Thu Nov 10 2016 VFR conditions are expected to prevail throughout the forecast as a ridge of high pressure settles through and then south of the area over the next 24 hours. Winds will then veer to the northwest Thursday evening as a cold front settles through the area. * None Model data strongly supports an atmosphere that will be predisposed to upper level ridging and blocking over much of North America through this weekend.
Latest temp/dew-point trends indicate that temperatures will likely fall to near or just below freezing in these counties.
402 AM EST Thu Nov 10 2016 High pressure today. A mostly dry cold front crosses Friday, with much cooler air for the weekend.
1149 PM EST Wed Nov 9 2016 A ridge of high pressure over the Ohio and mid Mississippi valleys will build northeast overnight into the north country, and will remain over the region through Thursday. A strong cold front will move south from Canada late Thursday night and Friday and bring more showers to the north country. Another ridge of high pressure will build east from the Great Lakes and Mississippi valley Friday night and will remain over the north country through this weekend.
326 AM EST Thu Nov 10 2016 High pressure will briefly build overhead for today into tonight before a reinforcing cold front moves through Friday.
/issued 329 PM CST Wed Nov 9 2016/ (Tonight and Thursday) Upper level low continues to slowly retrograde this afternoon, while a large area of light to moderate rainfall creeps across the I-10 corridor from Junction to Sonora. Temperatures are still in the mid and upper 50s this afternoon, and not likely to fall too much tonight given the low level moisture in place. Upper low still likely to be near El Paso for Thursday, with models still showing convection on the east side across the Permian Basin eastward into at least the Concho Valley and Edwards Plateau. Much like some of Central and North Central Texas that has seen a few breaks in the cloud cover and thus slightly warmer temperatures, we may be able to climb a few degrees across the area for Thursday.
Northwest winds will pick up today as the pressure gradient tightens behind a departing trough. High pressure, with clear skies and light winds will move in tonight.
209 AM MST Thu Nov 10 2016 Large scale ridging continues to dominate the Western US, Central Rockies, and Central High Plains in a Rex Block type pattern. At the surface, high pressure extends from the central Mississippi River Valley and across eastern Kansas. Lee trough is in place in east central Colorado with southwest flow over our CWA. High temperatures will be around 70 or into the lower 70s on Thursday. Guidance shows a weak cold front moving south and as the pre frontal trough slides south and east the warmest air mass transition in that direction. Immediately ahead of this trough, highs could warm in the middle 70s. These winds will also correlate with slightly "cooler" temperatures and higher Tds.
Benign weather conditions continue across South Florida tonight with high pressure still in place.
1103 PM CST Wed Nov 9 2016 High pressure over eastern Kansas/northwest Missouri will continue drifting southeast tonight. The ridge axis will slide over the eastern Ozarks during the pre-dawn hours of Thursday morning bringing calm wind and a clear sky resulting in excellent radiational cooling conditions. More widespread frost is likely over the eastern Ozarks where temperatures will be near freezing, so the frost advisory still looks good. High pressure will move south on Thursday across eastern Texas.
225 AM EST Thu Nov 10 2016 High pressure will build into the region from the west today, then push to our south tonight. A dry cold front will move southward through the area on Friday, then chilly Canadian high pressure will build in from the northwest Friday night through the weekend. Expect highs of 61-67, and wide-ranging lows tonight of 35-42, with diminishing winds backing to WSW as lee troughing develops. This will push a backdoor cold front SSE through NC on Fri, and this front will settle well to our south Fri night as chilly Canadian high pressure drops through the Midwest and extends through the Mid-Atlantic region and NC.
Breezy to windy conditions will continue today due to a low pressure system just southeast of the area. This low pressure system may then bring a few showers and thunderstorms near the New Mexico border late this afternoon into Friday night.
Area of convection along the Rio Grande could last longer this evening as some upper level support from a weak short wave trough over northeast Mexico is evident on satellite imagery.
509 PM MDT TUE SEP 13 2016 20z surface analysis had high pressure over the Dakotas. Water vapour loop showed upper low over NV with weak ridging developing ahead of it over the Plains states. This upper low will be the main weather concern in the short term. Wednesday, upper low moves into southwest MT with lee trough / low developing over WY. Wednesday night, upper low lifts out as weakening upper trough.
913 PM EDT Tue Sep 13 2016 High pressure and a dry airmass will depart east tonight. A cold front will bring a chance of showers and thunderstorms on Wednesday.
Expect drier, cooler and continued breezy conditions on Wednesday as a storm system moves away from the state. Isolated showers and thunderstorms are continuing along and east of a trough axis that now extends roughly from the four corners to Payson and Phoenix. Another area of convection is located closer to the cold center of the low, north of the Kaibab Plateau. Models sweep the trough east of the state by Midnight MST and the main low then ejects northeastward through the eastern Great Basin during the day Wednesday.
1041 PM EDT TUE SEP 13 2016 Moisture will be directed into the forecast area in the easterly flow between high pressure off the Mid-Atlantic coast and low pressure in the north Florida area through much of the week. Satellite shows an impressive low pressure system lifting northward along the northeast coast of Florida with well defined convective bands spiraling around the center. This system is very close to having the organization required of a tropical cyclone.
736 PM EDT Tue Sep 13 2016 Fair weather will continue through the overnight period as high pressure remains off the east coast. A cold front will cross the region on Wednesday bringing widespread showers and scattered thunderstorms.
Chattanooga Airport, TN 69 91 68 89 / 20 20 10 30 Knoxville McGhee Tyson Airport, TN 67 89 65 87 / 20 10 10 20 Oak Ridge, TN 67 89 66 87 / 20 10 10 20 Tri Cities Airport, TN 63 87 62 85 / 10 10 10 20.
811 PM EDT Tue Sep 13 2016 Quiet weather expected tonight with high pressure gradually moving east of the area. a cold front will quickly enter the region from the west on Wednesday and enhance the potential for showers across much of the area.
Low pressure area now centered over Nevada continues to move towards the east. Temperatures will cool off into the lower 50s for most valley locations overnight to the 30s for most mountain valley locations. High pressure will build over the region the next several days with a warming trend through the end of the week.
1138 PM EDT TUE SEP 13 2016 High pressure will be south of our region tonight. A cold front will approach overnight and cross the area on Wednesday.
823 PM EDT TUE SEP 13 2016 Low pressure continues across northern Florida this evening. Preicp coverage in the far SE will depend heavily upon the track of the low center. /Issued 340 PM EDT TUE SEP 13 2016/ Latest regional surface analysis shows high pressure continues offshore the mid Atlantic coast with subtle ridging continuing through east central GA. Of more concern however the is the persistent circulation along the NE Florida coast which along with the high is maintaining a strong onshore flow and allowing copious amounts of moisture to move into the area.
Tonight and Wednesday The latest RAP analysis and satellite/radar imagery show a cold front exiting eastern WI early this afternoon. Cold advection will continue behind the front tonight, as Canadian high pressure settles across the region. Cooler with lows in the mid 40s north to mid 50s south. Canadian high pressure will be building into the region through the day. Wednesday Night Through Tuesday Primary focus during this period is the frontal system and short wave trough late this week into early this weekend.
1022 PM EDT Tue Sep 13 2016 Quiet weather expected tonight with high pressure gradually moving east of the area. a cold front will quickly enter the region from the west on Wednesday and enhance the potential for showers across much of the area.
Convection has died off for the evening across my cwa as upper ridge remains across the area.
Under mostly cloudy skies with gentle to moderate winds from the south southeast, temperatures are in the lower 80s. An above average probability of measurable precipitation is expected through the overnight period as the lower flow continues to be slightly confluent.
/issued 317 PM CDT TUE SEP 13 2016/ Upper level pattern across the CONUS continues to be characterized by a trof over the w and the ridge over the se, with our region just on the nwrn periphery of the ridge. Several disturbances will pass over the top of the ridge, even weakening it enough to get a cold front into our nrn areas Fri/Sat, providing some enhanced coverage of convection for the entire weekend and into early next work week. Little change in the outlook for midweek with similar conditions, but scattered to numerous elements may crowd the skies late week and this weekend with an approaching weak cold front.
937 PM CDT TUE SEP 13 2016 Cold front stretching from north central to southwest Oklahoma not expected to move much overnight as upper flow remains roughly parallel to the boundary. An upper PV max in the southern stream of the westerlies resides over the Great Basin, while another trough in the northern stream slides east near the Canadian border. Storms are firing along the pre-frontal trough from SW to N Central OK. Other isolated showers were developing over the higher terrain of W AR and SE OK.
/Issued 937 PM CDT TUE SEP 13 2016/ Cold front stretching from north central to southwest Oklahoma not expected to move much overnight as upper flow remains roughly parallel to the boundary. An upper PV max in the southern stream of the westerlies resides over the Great Basin, while another trough in the northern stream slides east near the Canadian border. Storms are firing along the pre-frontal trough from SW to N Central OK. Other isolated showers were developing over the higher terrain of W AR and SE OK.
729 PM EDT TUE SEP 13 2016 Moisture will be directed into the forecast area in the easterly flow between high pressure off the Mid-Atlantic coast and low pressure in the north Florida area through much of the week. Satellite shows an impressive low pressure system lifting northward along the northeast coast of Florida with well defined convective bands spiraling around the center. This system is very close to having the organization required of a tropical cyclone.
The closed upper low was centered over northeast Nevada this evening and it will slowly lift across northern Utah and southeast Idaho through Wednesday morning. showers and thunderstorms have persisted much of the day across Esmeralda county fueled by strong forcing in the vicinity of the closed low.
With weakening high pressure, shower and thunderstorm coverage will be slightly greater than today, especially across the northern half of the state.
/issued 401 PM CDT TUE SEP 13 2016/ Latest WV imagery and UA analysis shows low pres over the wrn CONUS with a broad low amplitude ridge downstream acrs the ern US. Moisture profile over the area per KLCH 12Z sounding shows decent moisture in the lower and mid lvls with drier air aloft, and the latest GPS-met data indicates precip water remains around 1. At the sfc, a weak ridge of high pres extends fm the Mid Atlantic states toward E TX, while a weak trough extends acrs the cntl and ern Gulf. Another warm and muggy night is on tap with overnight lows again expected to reach the lower to middle 70s.
A weak cold front will bring chances for rain tonight and Wednesday, but a stronger system will bring better chances for rain during the early part of the weekend. Going forecast lows in the low to mid 60s look on track compared with current dew points and latest lows from the RAP and HRRR. Hi Res Rapid Refresh has been consistent in bringing some scattered showers into the extreme northwest forecast area this evening in this higher dewpoint air. The remainder of the northwest forecast area as well as the far north will have to wait until overnight for some low rain chances, as a cold front approaches the area. Temperatures will be warmer tonight with the higher moisture content moving in.
The low pressure over the Great Basin has continued to move towards Southern Idaho and current forecast looks on track. Low pressure over Nevada will move northeast over Southern Idaho by Wednesday.
951 PM EDT TUE SEP 13 2016 High pressure now over NC will drift offshore on Wednesday, ahead of a weak and moisture-starved cold front that will move south across VA and NC Wed night and Thu. DPVA associated with this feature combined with enhanced SELY onshore flow from the attendant low pressure over northern Florida/southern Georgia could result in an isolated shower or two drifting north/northwestward into the southern coastal areas.
850 mb winds seem to hint at a weak 850 circulation or trough over the western Gulf. Moisture remains plentiful at 700 mb with dew points at 9 C and again there is a hint of some type of trough over the western Gulf.
910 PM EDT TUE SEP 13 2016 High pressure will be south of our region tonight. A cold front will approach overnight and cross the area on Wednesday.
648 PM CDT TUE SEP 13 2016 Cold front is currently located roughly along a KTOP to KDVN line as of 1900 UTC. This area has weakened slowly throughout the daylight hours as the low-level jet has faded considerably. Leaned a bit toward the NAM/ECMWF as the low-level baroclinic zone so far today has been slower to progress than earlier anticipated by model guidance. leaned aob the cooler MAV guidance for Wednesday's high temperatures across the northwestern half of the CWA where highs should stay within the 70s.
947 PM EDT TUE SEP 13 2016 An area of low pressure over quebec will continue to move eastward overnight. This will allow a cold front to sag southward across the region on Wednesday.
715 PM EDT Tue Sep 13 2016 High pressure will drift east while a cold front moves into the region late tonight into Wednesday morning.
High Surf/Rip Currents: breaker reports up to 6 ft and rising as of sunset and will keep high surf advisory in place along with the high risk of rip currents.
1139 PM CDT TUE SEP 13 2016 Cold front continues to make slow progress into South Central KS at this time, located generally along the the KS Turnpike. Upper low currently over the west coast will slowly lift to the NE across the rockies as an open wave for Wed night through Thu. Earlier model runs suggested a ridge of high pressure would drop south across the plains for the weekend. Ketcham Widely scattered convection is expected to redevelop either side of a slow moving cold front as it sinks southward across southeast Kansas overnight.
721 PM CDT TUE SEP 13 2016 The pattern aloft featured southwest flow across the central plains ahead of a close low pressure system in CA. At the surface, the cold frontal boundary was located to our south across southeast Kansas. The western upper low pressure system moves into the north central Rockies Wednesday night and lift increases across the plains in increasing dynamics ahead of the approaching system.
Some showers will remain over the Texas panhandle and the high plains, but are not currently anticipating any at the terminal sites this evening or overnight. Scattered showers and storms have developed across the region with the best coverage across the western zones where the highest instability resides. Although most of the afternoon storms will dissipate with the loss of heating, additional storms will be possible later in the evening and overnight across the northwest zones as a cold front approaches. The cold front is not expected to reach North Texas tonight but some storms that develop on the front or any southward moving outflows may affect the CWA.
928 PM EDT Tue Sep 13 2016 Fair weather will continue through the overnight period as high pressure remains off the east coast. A cold front will cross the region on Wednesday bringing widespread showers and scattered thunderstorms.
846 PM EDT Tue Sep 13 2016 High pressure will continue to drift east from the northern Mid- Atlantic coast through tonight. A mainly dry cold front will cross the area Wednesday night.
1026 PM EDT TUE SEP 13 2016 High pressure through Wednesday. A weak cold front crosses Wednesday night.
726 PM EDT TUE SEP 13 2016 High pressure through Wednesday. A weak cold front crosses Wednesday night.
The tropical area of low pressure is presently located just inland near St. Atlantic high pressure ridge will reassert its influence in the wake of the low, while residual high PWAT air, especially across the northern CWA, keeps rain chances above normal. Concern for Wed will be in the afternoon for developing storms with locally heavy rainfall moving southwest to northeast across the central peninsula, given the proximity of the low to the north, very deep moisture in place, and afternoon instability from surface heating.
636 PM CDT TUE SEP 13 2016 Cold front continues to make slow progress into South Central KS at this time, located generally along the the KS Turnpike. Upper low currently over the west coast will slowly lift to the NE across the rockies as an open wave for Wed night through Thu. Earlier model runs suggested a ridge of high pressure would drop south across the plains for the weekend. Ketcham Widely scattered convection will continue to percolate along a slow moving cold front as it sinks southward across southeast Kansas tonight.
743 PM EDT Tue Sep 13 2016 High pressure and a dry airmass will depart east tonight. A cold front will bring a chance of showers and thunderstorms on Wednesday.
736 PM EDT TUE SEP 13 2016 An area of low pressure over quebec will continue to move eastward overnight. This will allow a cold front to sag southward across the region on Wednesday.
/Issued 340 PM EDT TUE SEP 13 2016/ Latest regional surface analysis shows high pressure continues offshore the mid Atlantic coast with subtle ridging continuing through east central GA. Of more concern however the is the persistent circulation along the NE Florida coast which along with the high is maintaining a strong onshore flow and allowing copious amounts of moisture to move into the area.
910 PM EDT Tue Sep 13 2016 High pressure should maintain dry weather tonight before a crossing cold front returns scattered showers and thunderstorms to the region Wednesday. High pressure should maintain dry weather tonight as it slides east of the area. A cold front is progged for approach and passage Wednesday.
Still seeing some elevated cloud cover over extreme NE TX/SE OK/SW AR associated with a weak upper trough nearly stationary over Cntrl TX. which will likely persist over these areas overnight before it begins to slowly weak/shift NE Wednesday in response to the SW flow aloft gradually shifting E as well ahead of the NV closed low. S of the center of the flat ridging over the TN Valley.
Lows in the mid 30s to the lower 40s still look good with some patchy frost late in the James Valley.
/issued 215 PM CDT TUE SEP 13 2016/ Upper level low over the Great Basin coupled with high pressure across northern Mexico and extending toward the Bahamas will result in southwesterly flow aloft. That coupled with the cold front that is draped across the area is helping to initiate convection across the northeastern zones.
1045 PM MDT TUE SEP 13 2016 The short term will be under the influence of a deep, slow-moving upper low that will bring windy and wet conditions with widespread thunderstorms, a few of them strong. The upper low lifts slowly across northern NV tonight and into NW Wyoming by Wednesday. Wednesday as the upper low lifts through NW Utah drier air works into the Utah zones with the best divergence aloft shifting into NW Colorado through the afternoon. Wednesday evening the cold front works through the region enhancing storm activity along mainly the Continental Divide.
A ridge of high pressure will be building into the region from the west while a closed low currently over the Great Basin lifts northeast into the northern Rockies by Wednesday afternoon. Only impact of the low will be some clouds over far eastern Oregon, otherwise skies will be clear.
Terminal txkx latest metar has VIS down to 9SM which may be a precursor for a brief period of VFR fog before the high level cloudiness move overhead. Still seeing some elevated cloud cover over extreme NE TX/SE OK/SW AR associated with a weak upper trough nearly stationary over Cntrl TX. which will likely persist over these areas overnight before it begins to slowly weak/shift NE Wednesday in response to the SW flow aloft gradually shifting E as well ahead of the NV closed low. S of the center of the flat ridging over the TN Valley.
653 PM CDT TUE SEP 13 2016 Cloudy weather in the Midwest today with warm temperatures is slowly giving way to a weak cold front moving across the region. Although this cold front is scheduled to move through, showers and thunderstorms at this moment are limited by weak ascent, weak shear, and ultimately a decent cap over the region. An upper low, currently centered over California and Nevada, will open on Wednesday and slowly track northeast.