Aikyam-Lab/Synoptic-Bench huggingface dataset:
Where skies had cleared, temps had fallen into the lower 30s with continued northerly winds. With continued northwest winds, this will have effects on our high temps and have gone on the cool side of guidance with most locations staying in the lower to middle 40s.
/issued 139 PM CDT Mon Mar 12 2018/ Upper ridge building in from the west with a trough over the east. The next upper low begins to move ashore the west coast Tuesday. This low will spin over the west for days but make little eastward progress. do not see another cold front out through the rest of the forecast.
An additional 1 to 2 inches can be expected, especially across the highest peaks. Long wave trough remains tomorrow with another area of low pressure moving down out of the Great Lakes. Have in slight chance and chance POPs across SWVA and eastern mountain zones by tomorrow afternoon as the low drops south. Winds remain brisk tomorrow with highs in the lower 40s to upper 40s. A vort max rotating around a closed upper low will drop southward into our northern sections on Tuesday night, bringing steep lapse rates and a NW flow that will generate scattered to numerous snow showers in SW VA and NE TN.
320 PM PDT Mon Mar 12 2018 Dry and warmer weather will continue today with a subtropical air mass keeping nights warmer and high clouds streaming in from the southwest.
647 AM EDT Sat Jun 3 2017 Moisture associated with a weak trough will stay mainly south of the forecast area through tonight. The trough and associated moisture will shift a little farther northward Sunday ahead of an approaching cold front.
611 AM EDT Sat Jun 3 2017 Moisture associated with a weak trough will stay mainly south of the forecast area through tonight. The trough and associated moisture will shift a little farther northward Sunday ahead of an approaching cold front.
440 AM EDT Sat Jun 3 2017 A weak cold front will move across the area today. High pressure returns tonight into Sunday as low pressure tracks through the Great Lakes.
422 AM CDT Sat Jun 3 2017 The weak upper trough has re-centered nearer the Texas Panhandle early this morning, though broad weak circulation covered more than the entire area.
404 AM CDT Sat Jun 3 2017 A weak trough of low pressure was located over Central Texas with a weak coastal trough over the western Gulf. Convective temperatures are in the lower/middle 80s so convection should begin to develop as temps warm into the 80s.
659 AM EDT Sat Jun 3 2017 Dry weather will continue today as high pressure moves slowly east.
Upper level trough set to slide southeast from southern Canada, slipping across northern parts of the region tonight. Dewpoints on the increase - mostly into the low 60s - although some low level mixing in the afternoon could counter any gains made from advection. For Sunday, secondary trough progged to drop south across the region. Latest GFS/EC a bit more amplified in the upper level ridging they want to build across the region for the new work week. A cold front will make passage through the area late this afternoon into this evening.
A rather summer-like pattern is in place across the region today, characterized by upper level ridging and weak mid level flow. A weak, disorganized trough will push east across Texas and Oklahoma today, with several small vort maxima expected to lift through the region. Sunday looks quite similar to today, as the disorganized upper level trough moves across the Arklatex. By Sunday night, a stronger trough digging across the eastern Great Lakes will push a cold front through the area from northeast to southwest, which will (somewhat slowly) force drier air into the area along with rising surface pressure.
Forecast otherwise on track with lows in the lower to mid 70s.
Upper low is much closer to our area today, forecast to reside over western Oklahoma, and thus expect better coverage of showers and storms today compared to yesterday. The upper low will drift southeast, while gradually becoming an open wave as we head into Sunday. Chances for showers and storms will continue, with greatest coverage along and to the southeast of the upper low/trough axis.
Upper level trough set to slide southeast from southern Canada, slipping across northern parts of the region tonight. Dewpoints on the increase - mostly into the low 60s - although some low level mixing in the afternoon could counter any gains made from advection. For Sunday, secondary trough progged to drop south across the region. Latest GFS/EC a bit more amplified in the upper level ridging they want to build across the region for the new work week. A warm front continues to slowly lift through the region early this morning, and should result in scattered showers and storms developing through sunrise.
141 AM EDT Sat Jun 3 2017 Weak high pressure will remain in control of the weather through Saturday, bringing warm and dry conditions to the local area.
Skies continue to clear across much of north/central GA this evening as dry high pressure builds south across the area. Region remains under the eastern edge of a weak and somewhat "dirty" upper ridge.
324 AM PDT Sat Jun 3 2017 Fair and warm inland this weekend, while a shallow marine layer keeps areas closer to the coast cooler with periods of low clouds and fog. Gradually cooler for the upcoming week as a low pressure trough slowly develops along the West Coast and moist onshore flow increases and helps build up the marine layer.
209 AM CDT Sat Jun 3 2017 A rather summer-like pattern is in place across the region today, characterized by upper level ridging and weak mid level flow. A weak, disorganized trough will push east across Texas and Oklahoma today, with several small vort maxima expected to lift through the region. Sunday looks quite similar to today, as the disorganized upper level trough moves across the Arklatex. By Sunday night, a stronger trough digging across the eastern Great Lakes will push a cold front through the area from northeast to southwest, which will (somewhat slowly) force drier air into the area along with rising surface pressure.
350 AM EDT Sat Jun 03 2017 Weak high pressure will extend across the central Appalachians and southern Middle Atlantic states through tonight.
345 AM CDT Sat Jun 3 2017 Short wave moving across central Canada and attendant weak cold front will have minor impact on sensible weather across the region today.
Aloft, ridging over the lower and middle Mississippi Valley will break down. As this happens, upper level low pressure over the southern plains will work in combination with a broad low level flow off the Gulf of Mexico to bring deep moisture northward toward our area. Models show this moisture getting caught up in the flow ahead of a northern stream upper level trough expected to drop southeast over the Great Lakes on Sunday.
Currently, some high-level cirrus clouds are streaming east- southeast into the lower OH Valley thru a ridge aloft over the mid MS Valley. For tonight, forecast guidance suggests the ridge will break down and moisture will stream northeastward across the lower and mid MS Valleys ahead of an upper low over the southern Plains. Max temperatures will be in the lower and mid 80s (a bit lower due to clouds than today), but it will become more humid.
326 AM EDT Sat Jun 3 2017 Moisture associated with a weak trough will stay mainly south of the forecast area through tonight. The trough and associated moisture will shift a little farther northward Sunday ahead of an approaching cold front.
Early morning surface map shows weak 1018-1020 mb high pressure over WV and eastern KY and ridging back into central and eastern IL. This to drive a cold front se into northern CWA late Sunday afternoon and over rest of CWA during Sunday night. Increasing sw winds bring more moisture into central IL sunday and supports better chance of showers and thunderstorms along and ahead of cold front Sunday afternoon and Sunday evening.
Temperatures a few degrees warmer than last night at this time, generally in the middle 70s.
1206 AM CDT Sat Jun 3 2017 Broad ridging across the western and central US is maintaining a summertime precipitation pattern across the region through the weekend.
High pressure continues today, bringing above normal temperatures and clear skies. Then subtle troughing influence tomorrow will cause breezy afternoon winds.
140 AM EDT Sat Jun 3 2017 Weak high pressure will remain in control of the weather through Saturday, bringing warm and dry conditions to the local area.
105 AM EDT Sat Jun 3 2017 High pressure centered over the Great Lakes will continue to build across the region into Saturday. The high will drift off the East coast on Sunday allowing low pressure to track SE out of Canada into the Central Great Lakes.
Saturday will become mostly sunny as high pressure moves in.
As far as the big picture is concerned, closed lows on both of our northern coasts will cause some ridging over our area. A closed low cutoff from the main flow will also persist over the central states bringing showers and storms to the high plains while we will remain dry. The decreased moisture, along with high pressure, will keep precipitation at a minimum. So how hot will it get? Northern and southern valleys will reach the low 80s while central valleys look to reach mid to upper 80s.
The upper level trough will sharpen and move east on Saturday and by afternoon and evening the axis will stretch from Oklahoma south into West Central Texas and the Big Bend.
A weak ridge will build over the southeast today. Winds will be light and variable, which favors the highest rain chances in north Florida.
207 AM PDT Sat Jun 3 2017 An upper level trough in the Gulf of Alaska will approach today and then move through the forecast on Sunday. Increasing cloud cover and onshore flow today will lead to temperatures about 5 degrees cooler than were observed yesterday. Sunday will be about 10 degrees cooler still, with most areas experiencing highs in the 60s and 70s, which is about 5 degrees below normal. On Sunday the focus of activity shifts a bit eastward as the trough moves inland, with showers over the East Side.
Ridging aloft develops along with low and mid level drying, thus chances for showers and thunderstorms look quite slim. Even stronger ridging aloft builds in producing a mostly clear and quiet night with no showers or thunderstorms expected. With warmer mid level temperatures, will see quite a mild day. Another dry overnight with ridging aloft and limited low and mid level moisture.
The main upper ridge axis will cross the region Sunday with deep southwest flow aloft moving into the region. Warm and dry air will remain over the region with temps slightly warmer.
329 AM PDT Sat Jun 3 2017 High pressure over the region will bring above normal temperatures into Sunday with fair skies, except for night through morning low clouds and fog. A weak ridge has nosed into the south part of the state from the NW. A large PAC NW upper low is spinning broad cyclonic flow atop of the ridge. Max temps will be above normal inland due to the high hgts but the coastal temps will be normal with blo normal temps at the beaches where the marine layer will hold sway.
355 AM EDT Sat Jun 3 2017 A weak pressure pattern will prevail across the forecast area under the western periphery of subtropical high pressure through the weekend.
/issued 906 PM CDT Fri Jun 2 2017/ MCS associated with impulses on the downstream of the upper low over N TX continues to track ewd.
434 AM EDT Sat Jun 3 2017 A distubance aloft will bring a chance of showers this morning, but otherwise high pressure will maintain fair weather today through Sunday morning.
301 AM CDT Sat Jun 3 2017 Another day of dealing with a weak upper trough over the area.
The upper trough which brought the precip to the area was spinning along the CO/WY/NE line and was moving very slowly southeast. Upper low is fcst to move only very slowly southeast today and is fcst to be in the vicinity of the CO/KS/NE border by 00Z. Recent longer term computer simulations, PV analysis and forecast model soundings indicate that varying degrees of upper ridging will be noted over the forecast district during the balance of the longer term in combination with moist north-northeasterly surface surges at times.
400 AM EDT Sat Jun 3 2017 High pressure will remain in place through tonight.
As upper level flow turns to the southwest, the region will continue a warming trend with maximums reaching into the low 90s along the Snake River Plain Saturday. By Sunday, an upper level trough will begin its journey across the Pacific Northwest with a cold front pushing south and east out ahead of it.
640 AM EDT Sat Jun 3 2017 High pressure centered over the Great Lakes will continue to extend across the region today. The high will drift off the East coast on Sunday allowing low pressure to track SE out of Canada into the Central Great Lakes.
At the surface, a cold front is situated from the Dakotas southward through the Nebraska Panhandle into eastern Colorado, and have begun to develop along and just ahead of this line. Temperatures tomorrow are forecast to be several degrees cooler than today, but this will hinge on just how much cloud cover we end up seeing.
327 AM EDT Sat Jun 3 2017 High pressure centered over the Great Lakes will continue to extend across the region today. The high will drift off the East coast on Sunday allowing low pressure to track SE out of Canada into the Central Great Lakes.
139 AM EDT Sat Jun 3 2017 Aviation High pressure will continue to bring fair weather tonight into Saturday. A low pressure system will bring a chance for scattered showers and thunderstorms Saturday afternoon through Saturday night into Sunday morning.
First feature is the nearly stationary upper low across the Texas panhandle, which has begun to merge with the broader trough spilling out of the eastern Rockies extending south into northern Mexico. The increasing lift associated with the trough is already contributing to another wave of convection across north central Texas where the heavy rain axis will be setting up today with a flash flood watch in effect just west of our region. However, the advancing upper trough will be moving into the middle Red River Valley after midnight and is likely to induce additional convection closer to daybreak Sunday morning. Thus, rain chances will be increasing to likely area wide for Sunday and remain high chance Sunday night as the upper trough orients itself across the heart of the Ark-La-Tex.
405 AM CDT Sat Jun 3 2017 An unsettled pattern will continue into the weekend as an upper low slowly traverses the area. Will carry fairly high PoPs today and slightly lower them Sunday as the upper low shifts east of the area.
Training of cells will also need to be monitored for the threat of Flash Flooding, given that the steering flow in place isn't exceptionally strong (despite the nearing cold front). Sunday will be the wettest day of the weekend (and forecast period, overall) as the approaching cold front continues to advance toward the area.
CONSShort modeling seems to be doing well picking up on this lately, currently depicting the tongue of close to 70F surface dew points nosing into the Ozarks of SEMO, as well as the dip of drier upper 50s dew points troffed into southwest Indiana.
Cooler and drier air continued to move in from the west. Expecting overnight lows from the upper 40s in the far southwest to the lower 60s in the James Valley. Pressure rises in the wake of the trough producing an hour or two of gusty winds from the west/northwest, which should wind down over the next couple of hours. Currently, upper ridge axis moving into the Upper Mississippi Valley ahead of a mid level S/WV over the Western Dakotas. Ahead of the trough, thermal ridge extending north with 29-31C 925MB temperatures poking northward from far south central ND north-northeast into the Turtle Mountain region. Also accompanying the warm air is a very moist airmass with sfc dewpoint temperatures into the lower 60s.
202 AM EDT Sat Jun 3 2017 Moisture ahead of a weak trough will remain mainly south and east of the forecast area through Saturday. Moisture will increase Sunday ahead of a cold front.
A low-amplitude upper level ridge will build across the region through tonight with an upper low south of the region over the east- central Gulf of Mexico. Surface analysis shows high pressure to the east of FLorida ridging westward with the axis across the northern Gulf of Mexico. A trough is analyzed from the coastal waters south of AL/MS to the FL Big Bend coastline with a stationary front across central GA and northern AL.
SHORT TERM (Now through Sunday): 500 mb low pressure will meander over north Texas and Oklahoma during the period.
Current water vapor imagery and RAP upper air analysis indicate a ridge just to the west extending northward from the Lower Mississippi River Valley into Canada. This upper level ridge will be the main weather feature for today's forecast. Upper level heights will rise today as the ridge axis progresses to the east. The upper level ridge will breakdown tonight as an upper level trough dives quickly out of Canada and into the Great Lakes. Concurrently, a closed low to the west across Texas will slowly transition into an open wave.
327 AM CDT Sat Jun 3 2017 Upper level low pressure over the central plains will gradually move southward through Sunday.
High pressure is sliding across Montana and into the northern plains this morning. Winds will be light today before going around to the southeast tonight with the high pressure moving into the Dakotas. Dry conditions continue with upper ridge building over the northern Rockies. Temperatures will also be trending upwards through the weekend as the ridge pushes east over the state. By Sunday evening, the upper-level ridge axis will have moved eastward over the Dakotas and SW flow aloft returns to Montana ahead of the next low pressure system.
Highs will be a few degrees cooler than today, but will still manage the mid 80s to near 90.
349 AM EDT Sat Jun 3 2017 Dry weather will continue today as high pressure moves slowly east.
636 AM EDT Sat Jun 3 2017 High pressure centered over the Great Lakes will continue to extend across the region today. The high will drift off the East coast on Sunday allowing low pressure to track SE out of Canada into the Central Great Lakes.
925-850mb temperatures a few degrees cooler than yesterday, so expect most areas to top out shy of 90 degrees, though upper 80s likely to be fairly common. The overnight hours should feature mostly clear skies, with temperatures remaining mild, though cooler than the current morning with expected lows in the upper 50s to around 60. Sunday will be another very warm day, with thermal profiles just a shade warmer than today. As a result, stayed on the high side of guidance with highs in the upper 80s to lower 90s across the area.
326 AM EDT Sat Jun 3 2017 Quiet and warm weather can be expected today with high pressure.
137 AM EDT Sat Jun 3 2017 High pressure briefly builds into the area tonight followed by another weak frontal passage on Saturday.
219 AM EDT Sat Jun 03 2017 Weak high pressure will extend across the central Appalachians and southern Middle Atlantic states through tonight.
121 AM EDT Sat Jun 3 2017 High pressure moving slowly across the Ohio Valley will provide dry weather through Saturday.
A weak upper low circulation will meander into Texas and Oklahoma through Saturday as a ridge builds to our west. This will allow showers and storms to continue developing over the higher terrain as well as the central and east. By Sunday, drier air will spread into the west as the ridge becomes centered over New Mexico.
At the sfc, a persistent weak trough remains over the northwest Gulf of Mexico into southeast LA. Conditions are again quite muggy with temperatures in the low to mid 70s and dewpoints only a few degrees lower. KLCH radar shows a few showers developing over the nearshore waters and spreading into south central LA in the vicinity of this trough.
630 AM EDT Sat Jun 3 2017 A weak cold front will move across the area today. High pressure returns tonight into Sunday as low pressure tracks through the Great Lakes.
652 AM EDT Sat Jun 3 2017 Weak high pressure will remain in control of the weather through Saturday, bringing warm and dry conditions to the local area.
Most of this activity should push off into ND through the late afternoon/early evening as pseudo warm front continues to push north. The rest of the weekend looks dry and warm as a ridge of high pressure aloft moves into the Northern Plains. Upper level ridge at the start of the period should support dry conditions and warm temperatures.
305 AM EDT Sat Jun 3 2017 Weak high pressure will remain in control of the weather through Saturday, bringing warm and dry conditions to the local area.
High pressure will bring exceptionally warm temperatures today and Sunday with highs reaching 90 degrees in many spots. Seems the ECMWF is a little faster with the trough entry and spreads moisture further south as it races through.
A cooler and unsettled pattern will envelop the region late in the week.
324 AM EDT Sat Jun 3 2017 Weak high pressure will remain in control of the weather through Saturday, bringing warm and dry conditions to the local area.
It will be warm with dew points rising to the lower 60s. A cold front will move into southern Wisconsin tonight. Medium A warm thermal ridge will continue to extend into srn WI ahead of a cold front dropping in later in the day or more likely Sunday evening.
In the meantime, a closed low over extreme northwest Mexico will very slowly move to the east over the next several days.
Overnight lows will be mostly in the lower 40s, with a few upper 30s in the northwestern part of our area. An upper low, currently over the Arizona/Mexico border, will move slowly east into extreme southwestern New Mexico by late Monday afternoon.
1216 PM EST Sun Dec 17 2017 High pressure will build across the region today.
Surface observations show the precipitation having a hard time reaching the ground initially given the high amount of dry air below 700 mb per 12z ILN sounding. Regional radars show widespread rain showers across the lower Mississippi Valley region, with all of that activity pushing off to the northeast. However, this system will be moving fast and weaken quite a bit by the time it arrives to the lower Ohio Valley, and some areas across northern KY and southern IN may not even see measurable precipitation today.
If the fog forms visibility would be reduced to 1/2 mile or less and a layer of frost/ice may develop on untreated roads and bridges. With temperatures below freezing, we could see the fog freeze upon untreated roads and sidewalks leading to slippery travel.
area will remain dry today and much cooler, particularly across the plains where highs will only attain lower 40s at best. Western portions of the area will continue to see some mid/high cloudiness ahead of the upper trof axis. Clouds should clear out for all areas tonight as northern portion of the trof axis shifts east of the area and closed low becomes stalls out across southern AZ. Lee trof starts to redevelop late tonight but suspect temperatures will take a quick dive this evening once mid/high clouds clear out.
Guidance continues to trend less favorably for any freezing or frozen precipitation. The current trough that was previously a cutoff low over West Mexico will deamplify and quickly move off to the Northeast. but another very similar trough will approach the midsouth Midweek.
Weak high pressure remains over the area this morning. A weak upper level trough tracking across the southern Prairie Provinces of Canada this morning will give way to upper level ridging this afternoon. Generally mild conditions tonight ahead of the cold front with overnight lows in the 20s.
1026 AM MST Sun Dec 17 2017 Upper trough continues to cross the western CONUS into the northern plains. with strong upper ridging behind it over the Pac NW. Drier air will push in behind the trough axis as it crosses the CWA with snow ending by mid to late morning. Low amplitude ridging across the western and central CONUS will take over, with warm air advection beginning late today into tonight. Dry weather is expected through midweek, with warmer temperatures.