Aikyam-Lab/Synoptic-Bench huggingface dataset:
938 AM MST Fri Dec 1 2017 Weak upper level trof moving across Northern Colorado this morning and with mainly generating mainly mid and upper level moisture over the state. Have added some light snow over the higher mountains through mid afternoon but little if any accumulation. Mid and high level moisture will be exiting northeast Colorado later this afternoon as trof pushes east with weak subsidence behind it. Forecasts look good here, though mountain valleys could be a bit cooler if the skies do clear well.
/ISSUED 329 AM CST Fri Dec 1 2017/ Northeasterly winds will veer easterly as high pressure moves off to the east.
930 AM PST Fri Dec 1 2017 Mostly sunny today and Saturday with weak high pressure aloft.
225 MST Fri Dec 1 2017 Weak low pressure aloft,that has brought considerable middle and high cloudiness to the region,is expected to move off well to our south and east, across northern Mexico tonight and Saturday.
332 PM CST Fri Dec 1 2017 At 3 PM, a cold front was located over western Minnesota. Temperatures ahead of this cold front ranged from the mid 40s to mid 50s. 5C cooler on Saturday, there will be more sunshine.
108 PM EST Fri Dec 1 2017 High pressure overhead will maintain dry conditions and seasonably warm temperatures through the weekend.
334 PM EST Fri Dec 1 2017 Fairly persistent pattern for the next several days, as high pressure is in place to the north. The change in the pattern will come from an approaching front, which will be be in association with a strong 500mb trough. This trough will dig from well to the north in Canada, down to the Florida peninsula by the latter half of the week.
This cloud cover could help to keep temperatures a bit cooler across Northeast Oklahoma and Northwest Arkansas.
200 PM EST Fri Dec 1 2017 A weak cold front will stall just south of the area tonight.
Highs Saturday in the lower to mid 40s but upper 30s northern areas. Weak warm advection will occur as the low level ridge axis builds east of the region. Boundary layer flow will be mainly light west as flat upper ridging slowly builds in from the west.
334 PM EST Fri Dec 1 2017 High pressure will reside over the northeast this weekend bringing partly cloudy skies and mild temperatures. The rest of these low clouds will lift out through early evening with mainly clear skies expected through later tonight as high pressure builds over the area. High pressure will move to the eastern seaboard by afternoon resulting in a moderating southerly flow. High temperatures will range in the lower to middle 40s under mostly cloudy skies. High pressure maintains quiet weather for this part of the forecast.
213 PM CST Fri Dec 1 2017 High pressure will dominate the forecast through the weekend. As the center of the high moves toward the upper east coast winds will become more southerly allowing temps to rise a couple degrees each day. A 700mb trough will sweep across the region overnight and bring more mid to upper clouds as indicated in time-height cross section moisture analysts. The passage of the trough on Saturday will lend to lesser cloud cover/partly to mostly sunny skies especially by afternoon.
236 PM EST Fri Dec 1 2017 A weak cold front will stall just south of the area tonight.
Satellite imagery this morning shows one area of high level clouds departing northeast Wisconsin early this morning as a ridge of high pressure drifts across the area. The short wave trough passes over the area tonight. Surface temperatures overall expected to be above freezing while the temperature profile supports mainly light rain showers but mixed with some snow at the onset and then during the departure before ending over far northeast Wisconsin late. Another ridge of high pressure will drift over the state on Saturday for a return to more sunshine.
319 PM CST Fri Dec 1 2017 High pressure will be firmly across the area for the next couple of days. Even with a cold front moving through yesterday.
314 PM EST Fri Dec 1 2017 High pressure will build across the region tonight and Saturday.
Quit a bit of mid and upper level moisture stretching back west and southwest to an upper level low pressure system near Baja California. /issued 341 AM CST Fri Dec 1 2017/ Satellite imagery and upper-air observations early this morning show a cut-off low off the coast of Baja, California, with ample sub-tropical moisture entrained in the southwest flow aloft over the Desert Southwest, then becoming more westerly over the Southern Plains.
Despite a frosty start this morning, temperatures have warmed into the lower 50's in most spots again this afternoon.
1142 AM CST Fri Dec 1 2017 Warmer than normal temperatures will dominate this weekends weather, with no measurable rainfall expected. Afternoon highs should be a few degrees warmer than yesterday, especially in central/south-central Kansas given the southerly flow and better mixing potential. An upper trough will dig into the western states late this weekend, resulting in lee trough development.
1134 AM CST Fri Dec 1 2017 Water vapor satellite early this morning shows a rather flat short wave trough moving across the northern Rockies. The cold front with this system will come across late this evening into the overnight hours with some good warm air advection ahead of it. Once this system moves past the region, high pressure will quickly move across the Upper Midwest for Saturday. The flow aloft and at the surface will then transition to a southwest flow pattern as a system moves in off the Pacific and establishes a long wave trough over the Rockies.
107 PM EST Fri Dec 1 2017 Aviation High pressure will bring fair weather through the weekend.
some of the low level ceilings across Texas this morning could potentially re-develop over the CWA with few to broken areas of MVFR to just within VFR category cloud decks. This cloud cover could help to keep temperatures a bit cooler across Northeast Oklahoma and Northwest Arkansas.
/issued 935 AM CST Fri Dec 1 2017/ Sunny skies with northeast winds on tap today as temperatures climb into the lower 70s. /issued 255 AM CST Fri Dec 1 2017/ Wx map shows 1025mb high over MO, with weak ridging through TX/LA. The high will provide a fairly nice afternoon, with temperatures reaching the lower 70s. By Saturday, the high shifts east, with winds becoming easterly, and southeast by Saturday evening.
Weak and brief upper ridging moves over the region to the W Atlantic keeping dry WNW flow aloft. Highs will be in the lower 80s with overnight lows into Saturday morning ranging from the mid 50s across the Nature Coast to lower 60s across SW Florida. High pressure will be dominating the area supporting high temperatures nearly 10 degrees above average.
313 PM EST Fri Dec 1 2017 High pressure will build across the region tonight and Saturday.
334 PM EST Fri Dec 1 2017 High pressure will build across the region tonight through Saturday, leading to mainly dry weather for the weekend. Fairly tranquil weather is expected for through the end of the week as high pressure gradually crests over the region. A warm front lifting to the west may allow for a few snow showers overnight across northern areas overnight Saturday night. Highs will be in the mid 30s in the mountains and the lower 40s in the wider valleys, while Saturday night's lows will mainly be in the mid 20s to around 30.
920 AM MST Fri Dec 1 2017 Today: In the wake of southerly flow /low-level warm advection/ early this morning, expect highs 7-10F warmer than previous days, in the lower/mid 60s, warmest in eastern CO. Saturday: Expect mostly clear skies, light/variable winds, and highs invof 60F with little overall change in the synoptic pattern aside from subtle height rises aloft in advance of an upper level trough progged to move ashore the PAC NW during the aft/eve. Saturday night: A lee trough is expected to develop downstream of the CO Front Range as the aforementioned upper wave progresses E/ESE from the PAC NW into the Intermountain West and flow aloft begins to back over the Rockies.
1233 PM EST Fri Dec 1 2017 High pressure through the weekend.
311 PM EST Fri Dec 1 2017 The mean layer ridge centered over the western Gulf of Mexico reaches north into the Ohio River Valley. At the surface, high pressure dominates the eastern United States and supports moderate northeast to east breezes across the coastal waters of the Florida Keys.
Ending up a few degrees above guidance this afternoon, in the lower to mid 60s, with the help of nearly full sunshine and an exceptionally dry ground. A continued dry and much warmer pattern though the weekend.
227 PM EST Fri Dec 1 2017 High pressure with foggy mornings through the weekend.
247 PM CST Fri Dec 1 2017 20Z water vapor imagery showed zonal flow over the central plains while an upper low remained off the Baja of California coast and an upper trough approached the Pacific Northwest. However the higher dewpoints remain across central TX and the Big Bend of the Rio Grand. For high temps on Saturday, mixing is expected to be limited by weak ridging passing through.
145 PM EST Fri Dec 1 2017 High pressure will build in from the west today and linger over the region through the weekend.
The resulting increase in dewpoints combined with thickening high clouds will keep temperatures a little warmer tonight, with lows remaining in the 50s.
1242 PM EST Fri Dec 1 2017 Hydro High pressure will bring fair weather through the weekend.
Ridging influences sfc thru 02/12Z. Ridging influences aloft thru 02/00Z.
102 PM EST Fri Dec 1 2017 High pressure with foggy mornings through the weekend.
SYNOPSIS A progressive pattern with zonal flow aloft will prevail through the short term period as a weakening surface cold front to our southeast located across the central Florida Panhandle into south Georgia will dissipate as it drifts further southeast through the short term period. Fog is expected across much of the area but best potential for the lower visibilities will be across our southern and southwest counties. Lows tonight will range from around 40 northwest with some breaks in the clouds to the low 50s southeast where dew points remain higher.
305 PM CST Fri Dec 1 2017 Tonight through Saturday: High pressure will track from northwestern Nebraska into western Kansas overnight. On Saturday, high pressure will build east into northeastern Kansas and southeastern Nebraska. Southerly winds will develop on the back side of the high, ushering in slightly warmer air to the forecast area compared to today.
346 PM CST Fri Dec 1 2017 High pressure will control the area's weather for the next several days.
1122 AM CST Fri Dec 1 2017 Mainly a temperature forecast over the next several days as the upper jet continues to build northward and upper-level high pressure dominates the eastern half of the country.
As the trough moves east this afternoon, wind speeds should back off. At the surface, there will be a weak cold front that moves through mainly this afternoon and evening. There will be a weak high pressure system that will keep winds light and variable through the night.
256 PM CST Fri Dec 1 2017 Winds have shifted to the southwest today as surface lee troughing developed. The downsloping warming component of the wind will allow temperatures to warm quickly this weekend, and highs will be in the low 70s which is about 10 degrees above normal.
256 PM CST Fri Dec 1 2017 High pressure sitting over the Ohio River valley will move east this evening and bring a return to southerly winds into tomorrow.
Even with partial sun and limited mixing per soundings expect temps to reach around 40F into the low to mid 40s, warmest south central. Temps tonight will drop just blo freezing over interior west late as skies start to clear once precip ends. Elsewhere readings will stay above freezing. Upper air pattern consists of a 500 mb trough in the Pacific NW 00z Sun with a trough in the desert sw. These troughs combine and move into the Rockies and northern plains 00z Tue.
1100 AM CST Fri Dec 1 2017 High pressure remains over the Ohio River valley today and this is keeping the region dry with light winds through the afternoon. High pressure will dominate the weather across central Illinois today, providing mostly sunny and mild conditions. High temperatures will be a couple degrees cooler than yesterday. with afternoon readings topping out in the lower to middle 50s. As the high exits the region, southerly return flow on its back side will keep lows in the lower to middle 30s tonight.
1224 PM EDT Tue May 30 2017 High pressure over the Canadian Maritimes will slowly move east today while a weakening occluded front approaches from the west tonight.
Chattanooga Airport, TN 85 62 85 60 / 20 20 40 10 Knoxville McGhee Tyson Airport, TN 82 59 82 58 / 30 20 40 10 Oak Ridge, TN 83 59 83 56 / 30 20 40 10 Tri Cities Airport, TN 80 57 81 56 / 30 10 40 10.
610 AM CDT Tue May 30 2017 A large upper level low continues to spin over Ontario with a vort lobe rotating through our northeastern CWA this morning. At the surface, a ridge of high pressure continues to build east and is forecast to remain over the area into Wednesday giving the area continued dry conditions. At the same time, several weak mid-level impulses will be drifting southeast through the area in northwesterly flow as mid-level ridging builds over the Rockies.
954 AM EDT Tue May 30 2017 High pressure over the Canadian Maritimes will slowly move east today while a weakening occluded front approaches from the west tonight.
Low winds and seas expected as sfc ridging moves into the area later this week.
Instability limited by the cloud cover and cooler temperatures this afternoon. Upper air pattern will still show an east coast trough, with weak high ppressureover the area.
744 AM EDT Tue May 30 2017 An unsettled weather pattern is in store through the week as a series of cold fronts affect the region. With most of the moisture confined to the east of my FA, in the proximity of the area of convergence, expect more widespread activity to east of the ridges. Will include PoPs across mainly the ridge counties today, due to the rapid atmospheric destabilization in an area of increasing surface dewpoints. Cooler air aloft, and some modest instability will require the mention of storms.
951 AM CDT Tue May 30 2017 An upper low churning over the western Great Lakes will cause a wave of energy and a weak cold front to progress across Illinois this afternoon into evening. Upper low continues to spin just north of Lake Superior this morning, with several waves rotating southeastward toward the Great Lakes region. With cooler air aloft now in place, highs should largely be in the mid-upper 70s vs.
936 AM PDT Tue May 30 2017 A weak low pressure system moving through California will bring inland cooling through Wednesday with deepening of the marine layer into the far inland valleys.
740 AM PDT Tue May 30 2017 Cooler today and Wednesday. Dry and warmer for the remainder of the week. A weak trough remains over the area today and we may continue to see some afternoon thunderstorms along the crest south of Alpine County this afternoon. A broader trough in the Pacific with more moisture will move through from late evening through mainly Wednesday morning.
A large upper level low is spinning over the Hudson Bay region in Canada, with a trough trailing across the Great Lakes and the Midwest states to the Central Plains. High pressure is lurking over South Florida and the Florida Keys. High pressure will drift to the east, but the weakness in the pressure pattern will linger.
940 AM MDT Tue May 30 2017 High pressure ridge axis has shifted a litte further eastward over the Great Basin today so a little drier and warmer over Northern Colorado. Looking like a bit less convection today as the environment is a little warmer and drier.
and then southeast Texas where pops will be the lowest.
745 AM EDT Tue May 30 2017 High pressure will briefly build into the region Tuesday before a weak trough of low pressure swings through the southern Great Lakes Tuesday night into Wednesday.
957 AM EDT Tue May 30 2017 High pressure will briefly build into the region Tuesday before a weak trough of low pressure swings through the southern Great Lakes Tuesday night into Wednesday.
1017 AM EDT Tue May 30 2017 An unsettled weather pattern is in store through the week as a series of cold fronts affect the region. Cooler air aloft, and some modest instability will require the mention of storms.
826 AM PDT Tue May 30 2017 One more day of above average temperatures before thunderstorms move into the region early this evening ahead of a cold front. The robust cold front will arrive this evening and tonight with strong gusty winds and a good chance of showers and thunderstorms. By Wednesday and for the rest of the week, expect seasonal temperatures, breezy winds and a chance of showers and thunderstorms in the higher terrain. Remainder of the forecast noting the changes underway courtesy of a robust cold front passage this evening that is expected to result in gusty wind and thunderstorm activity this evening and overnight. A cold front will push into the region. Convection is expected to develop over the higher terrain in northern OR this afternoon and move north into central WA aft 00Z.
837 AM EDT Tue May 30 2017 The KTBW 12z sounding is showing an increasingly moist atmospheric column over the area as the ridge of high pressure shifts east into the Atlantic. High pressure will continue to ridge into the northeastern Gulf of Mexico through the rest of the week.
Mid level high pressure had shifted east of the state so subsidence was diminishing, though 500 mb temps were still not very cool at -7 Celsius. Surface analysis still showed a weakness in the high pressure ridge vicinity of Volusia/Brevard. The highest coverage of storms is indicated across the interior, around 40 percent. Some residual dry air in the low/mid levels will enhance downdrafts and a few storms could produce 40-50 mph gusts. Low level ridge axis just south of the waters will continue favorable boating conditions with a light (5 knot) offshore flow this morning turning onshore in a 10-12 kt sea breeze this afternoon.
A strong U/L ridge east of Florida will pull away from the region today. A L/W trough extending from the Great Lakes to the northern Gulf of Mexico will rotate slowly east approaching the eastern seaboard on Wednesday. The southern extent of the trough will be located over the Florida peninsula which will lower heights a bit over the region.
1250 PM EDT Tue May 30 2017 An unsettled weather pattern is in store through the week as a series of cold fronts affect the region. Hail is also a concern as freezing level heights are below 10K. Trough axis swings through Wednesday evening with weak upper level forcing so scattered showers will continue. Mid level heights remain low with a near full latitude trough over the eastern CONUS.
100 PM EDT Tue May 30 2017 High pressure will briefly build into the region Tuesday before a weak trough of low pressure swings through the southern Great Lakes Tuesday night into Wednesday.
NW flow slowly shifts east of the area early Wed, with gradually increasing mid level heights and a return to warmer southerly flow for Wed through Fri. This return moist flow will lead to increasing chances of showers and thunderstorms first on Wed, as a warm front will be located across Central KS for Wed afternoon and Wed evening. Could see a lull in the showers for most of Thu, as the warm advection pushes the warm front well northeast of the area. A cold front looks to drift south into Central KS for early Sat, with the front lingering across the area for Sat. A weak cold front that is crossing Nebraska will move slowly SE across the Nebraska/KS border to induce a gradual SW to NW wind shift.
506 AM MDT Tue May 30 2017 Limited mid level moisture under a weak upper ridge is still expected to drift northward into our CWA today with a few late day showers and thunderstorms mainly over the mountains. it appears both the probability and predictability are high that a strong ridge dominate the central high latitudes of NOAM through the end of this week. It also suggests that the pattern across the lower 48 will be a bit stagnant with systems slow to move east to west and day to day weather very similar. low pressure to our west will be favorable for pulling up moisture from the Gulf of Mexico into Central Rockies and adjacent High Plains. A stronger upstream system drops into the picture late in the week and this will temporarily kick out the Western trough.
1038 AM EDT Tue May 30 2017 Cold fronts cross today and Wednesday.
Strong high pressure aloft will move slowly east across Utah through Wednesday. A weak Pacific trough will cross northern Utah during the latter half of the week. Further upstream across central California and southern Nevada, clouds are beginning to form ahead of the upper level trough that is swinging into the Pacific Northwest coast that will further reach Utah by late Wednesday. Currently, the ridge of high pressure extends from northern Mexico into Alberta, Canada with very light winds aloft. 5C warmer at 700mb compared to yesterday's 12z sounding. The flow aloft will begin to turn southerly ahead of the upper level trough Wednesday as the system weakens the ridge. The overall trough has a split-feature characteristic, with the brunt of the system sliding to our north.
There will be periodic chances for showers as a large trough of low pressure will remain over the NE Pacific, and a series of disturbances lift NE across the Pacific NW.
1027 AM EDT Tue May 30 2017 Aviation sections updated Mid/upper level low continues to be anchored over southeast Ontario. In addition, there is a weak mid level trough over the southern High Plains. Will raise the high today a couple more degrees based on this morning's upper air. Area will continue to be under the influence of mid/upper level trough/cyclonic flow aloft.
This May has been mainly warmer and drier than normal, and that was certainly the case inland during the weekend up until isolated to scattered thunderstorms developed yesterday afternoon and evening. This will also result in cooler temperatures that will be much closer to normal.
Clear skies and light winds as high pressure moves into the northern plains. Ebert Previous short term discussion: Upper ridge extending from the Canadian Rockies into the Great Basin will slowly move east over the next few days. Canadian high pressure will be over Eastern Montana and Saskatchewan today with dry weather and clear skies. The upper ridge will move east tonight and Wednesday. The ridge axis will be over Central Montana Wednesday afternoon. This will bring warmer temperatures into the forecast area with mostly clear skies and dry weather continuing. Synoptic Setup: Long range begins with a large ridge running down from the Northwest Territories through Montana, including eastern Montana, and into the Intermountain West. A large trough runs extends from the pacific Northwest and British Columbia back off through the Gulf of Alaska and south of the Aleutians.
1049 PM CST Tue Mar 6 2018 Massive upper level low dropping south with snow and blowing snow coming to an end. Will maintain the low chances across the area as accumulations are not very likely. Mostly clear skies will develop on Wednesday night as cold high pressure settle south.
127 AM CST Wed Mar 7 2018 High pressure is centered over eastern MT and the western Dakotas early this morning, with a large low pressure at 500mb rotating across the Upper Great Lakes. An additional 500mb low over central Canada is helping push a trough over the eastern Dakotas, and is partially responsible for the reflectivity we've been seeing on the radar.
1258 AM EST Wed Mar 7 2018 Low pressure passes tonight.
The trough that brought strong winds Tuesday will move into the lower Great Lakes this morning.
306 AM CST Wed Mar 7 2018 High pressure is centered over eastern MT and the western Dakotas early this morning, with a large low pressure at 500mb rotating across the Upper Great Lakes. An additional 500mb low over central Canada is helping push a trough over the eastern Dakotas, and is partially responsible for the reflectivity we've been seeing on the radar.