Aikyam-Lab/Synoptic-Bench huggingface dataset:
630 AM EDT Mon May 8 2017 Chilly high pressure from central Canada will slide across the Great Lakes early this week. A warm front will develop over the lower Ohio Valley mid week but it will remain south of the area. Otherwise high pressure in the area so expect mostly sunny skies through the day. Models show a warm front to our southwest and by 12z Tuesday should be from near Peoria to Louisville.
335 AM PDT Mon May 8 2017 Drying with warming today as low pressure off the northern Baja coast drifts southward today. Moisture from that low pressure system will spread back into portions of Southern California on Tuesday bringing cooling with a chance of showers and slight chance of thunderstorms.
241 AM CDT Mon May 8 2017 High pressure extends from Lake Superior to the central Gulf of Mexico this morning. High pressure moves only very slowly eastward over the next few days.
354 AM CDT Mon May 8 2017 Today through Tonight: Latest satellite imagery showed mid to upper ridging centered over the ArkLaTex region which expanded through the forecast area. A few locations may even reach the 90 degree mark under light winds as dewpoints increase to the lower 60s across the west. Clear skies and light winds will continue for tonight with lows from the middle 50s to the lower 60s.
The Low-level jet will produce some LLWS though daybreak this morning at KLBB and KPVW.
221 AM EDT Mon May 8 2017 High pressure over central Canada is ridging southward into Central Kentucky this hour. The ridge is narrow across us though, and on the west side of it, we are seeing much higher dewpoints, even to the mid to upper 40s in the Bowling Green vicinity. The warm front associated with these rains will not move much during the day Tuesday, Best thinking at this point is that it will be just northeast of a SDF/Richmond line in the afternoon.
Tranquil night ahead as high pressure continues to settle across the area. Light winds and clear skies are still expected tonight with lows dropping into the lower to upper 40s with a few sites around 50. 8h Temps warm to around 15C areawide on Tuesday with deep low to mid level westerly flow expected downstream of the 5h ridge as the warm advection zone shifts further northeast of our region into the eastern corn belt through the Carolinas.
236 AM MDT Mon May 8 2017 Current surface map shows cold front from near KMBG-KPHP-KCUT. Scattered showers/thunderstorms continue across the northwest with thunderstorms expanding in coverage along cold front from southern Black Hills into south central South Dakota. Upper low currently over the southwestern CONUS slowly drifts into the central/southern plains over the next few days. Northern stream ridge builds across the northern plains for the end of the week as upper low remains cutoff across the southern/central plains. This will result in dry conditions with warmer temperatures. Thunderstorm chances will increase over the weekend as next upper trof digs into the western CONUS. A cold front passage tonight will be followed by gusty northwesterly winds over the plains of western South Dakota.
A closed upper low over Baja CA at 12z will move slowly eastward over the next 24 hrs, moving along the swrn AZ border by 12z TUE. At the surface, a weak cold front will push through the Denver area this morning.
324 AM CDT Mon May 8 2017 The short range models appear weaker with the cold front today and were the basis for the temperature forecast and rain chances tonight. The forecast respects the higher rain chances across Colorado with likely POPs extending just a short distance into Neb.
540 AM EDT Mon May 8 2017 High pressure should maintain mainly dry weather through the first half of the week. Mid level clouds should continue crossing the area early this morning as a weak upper trough rotates around an upper low across NY.
228 AM EDT Mon May 8 2017 High pressure over central Canada is ridging southward into Central Kentucky this hour. The ridge is narrow across us though, and on the west side of it, we are seeing much higher dewpoints, even to the mid to upper 40s in the Bowling Green vicinity. The warm front associated with these rains will not move much during the day Tuesday, Best thinking at this point is that it will be just northeast of a SDF/Richmond line in the afternoon.
503 AM EDT Mon May 8 2017 WV imagery and RAP analysis indicated an amplified pattern with a ridge from the plains into Manitoba a trough from James Bay to the ne CONUS resulting in confluent nnw flow through the wrn Great Lakes. At the surface, a ridge extended from wrn Hudson Bay and nw Ontario through wrn Lake superior into north cntrl WI. Today, with sfc ridging over the area providing another sunny day and a modifying airmass, temps will recover into the mid and upper 50s over the inland west half.
321 AM CDT Mon May 8 2017 Low pressure crossing central and eastern South Dakota today will bring switching wind directions and unsettled weather, in the form of scattered showers and isolated thunderstorms. Pressure rises of 3-4mb every 3 hours this morning across the western half of SD will gradually weaken as the low weakens and transitions to our far southeastern counties- southeastern SD by 21Z. High pressure will slowly build in from western ND Tuesday morning, and remain in place Tuesday (overhead Tuesday night).
513 AM EDT Mon May 8 2017 Low pressure in Quebec will slowly move northward today while a trough extending southward from the low remains stationary over the area. Unsettled and cool conditions will remain over the area until late week due to an upper level low over the region. The persistent upper low is currently over upstate New York.
High pressure over the Dakotas will give way to a developing storm system over the southern High Plains in the next 12-24 hours. Low pressure will move along this frontal boundary over the next 24-36 hours and spread rain/rainshowers across mainly the southern half of IN as early as tonight and likely Saturday. Cloud cover/cooler air mass over the area should keep temperatures in the upper 50's/low 60s today.
/issued 152 PM CDT Fri Apr 21 2017/ Upper trough coming out of the Rockies will swing across the Southern Plains later today with the secondary portion of the trough swinging down on Saturday. After the trough moves off a high pressure ridge builds in from the west.
A cold front with gusty north to northeast winds will push into the area around 06z. /issued 357 AM CDT Fri Apr 21 2017/ Another unseasonably warm day is expected today, though a strong cold front tonight will provide a break from the heat for this weekend.
330 PM CDT Fri Apr 21 2017 High pressure across the Northern Plains will build into Wrn and Ncntl Neb tonight followed by Pacific high pressure Saturday. The guidance came in with subfreezing lows tonight in the Platte valley and elsewhere. Generally clear skies are expected Saturday with high pressure moving overhead.
/Issued 950 AM CDT Fri Apr 21 2017/ Regional sfc analysis at 14z showed warm front extending from approximately southern Sebastian County eastward to just south of McAlester. There will be at least some tornado potential as the storms interact with the effective warm front. Short wave trough axis will be over northeast Oklahoma tonight, which will drive the boundary south and bring an end to the rain by early Saturday morning.
308 PM EDT Fri Apr 21 2017 Cold front sags south through this afternoon then lifts back north late Friday night/Saturday.
In the upper levels ridging will become near zonal flow. A low will develop near Arkansas with a cold front extending southward.
305 PM EDT Fri Apr 21 2017 Early this afternoon, a cold front was draped from SW TN into far southeastern Kentucky. This will result in temperatures rising with some late day highs in the upper 60s to the lower 70s. Lows tonight will range from the mid-upper 40s across southern IN and northern KY to the lower 50s in southern KY. It will be rather raw with highs only warming into the lower 50s across southern IN and northern KY. Some warmer temperatures with lower-mid 60s are possible down across southern KY. It will remain a breezy and a rather raw evening with lows cool into the upper 40s with overnight lows dropping into the lower-mid 40s in most spots.
213 PM EDT Fri Apr 21 2017 Deep low pressure over the northern Great Lakes will continue to slowly track eastward into southern Quebec today with with areas of showers through the day.
317 PM CDT Fri Apr 21 2017 At 3 PM, high clouds, associated with a short wave trough moving east northeast out of the Southern Plains, has spread north into areas along and south of the Interstate 90 corridor. 12z models continue to show that these clouds will gradually thin overnight and will likely have little impact on the temperatures With partly cloudy skies, dry dew points, and light winds, temperatures will fall into the mid and upper 20s in central Wisconsin and into the lower and mid 30s elsewhere. On Saturday night, a southerly return flow on the backside of the high will bring slightly warmer temperatures into the region.
1258 PM CDT Fri Apr 21 2017 Quiet and slightly cool weather on tap for today as an upper trough across the Rockies moves onto the central Plains. Highs today just below normal in the lower 60s, with partly to mostly cloudy skies. High pressure prevails tomorrow with more sunshine, and temps a couple of degrees higher than today.
Initially an upper trough was over the central Gulf of Mexico with a a weak ridge aloft and offshore the east FL coast. An embedded inverted trough was on the south side of the ridge. Then on Sat the upper trough and ridge ease eastward in response to an upper trough/low that has dropped into the central Mississippi Valley from the Pacific Northwest. Meanwhile the high pressure center sinks south.
SHORT TERM (Tonight through Saturday Night): The most significant event in the short term portion of the forecast will be the passage of a weak cold front through Deep South Texas and the Rio Grande Valley early Saturday evening through early Saturday night.
A low level thermal trough will however slide from cntl Mi across Se Mi this evening into the early portion of the overnight. The depth of the low level inversion under this cooler air should at least sustain a prevailing cloud base into the night. Can not rule out some longer duration cloud breaks this evening before the thermal trough slides through around midnight. The trough will gradually swing through over night bringing gradual clearing from the northwest to about the northern burbs of the Detroit metro area by morning. Winds will go near calm and with clear skies and dew points around or slightly below freezing, expect possibility of frost, mainly west and north of Detroit area.
Strong CAA in the wake of the front will cause temperatures to tumble into the lower to middle 40s for much of the area, with upper 30s expected over the northwestern zones.
Dry weather will persist through the evening, then the high pressure area is squashed farther south through the short term period. This cold front will slide into northern ND 09z-12z Saturday, gradually sagging into central ND 21z Sat-00z Sun. Will add some patchy fog late tonight into Saturday morning, along and just behind the cold front in far northern ND including the Turtle Mountains.
146 PM EDT Fri Apr 21 2017 A cold front will move toward the forecast area from the Ohio Valley and stall tonight across NC.
The midlevel trough will depart the region this evening. Then drier air will move in as a broad area of high pressure moves into northern WI overnight and remains in place through Saturday. This will allow temperatures to drop to the lower to mid 30s tonight with some frost possible. Temperatures will warm into the middle and upper 50s on Saturday, with cooler readings near the lake.
301 PM CDT Fri Apr 21 2017 This afternoon, high pressure continues to build into the northern Plains and into the Upper Midwest. Yesterdays cold front has drifted south of the Ohio River Valley, with northerly winds behind it and plenty of cirrus limiting the diurnal swing with the temps for Central Illinois. Either way, temperatures remain moderate overnight, only dropping into the low to mid 40s.
106 PM EDT Fri Apr 21 2017 Atlantic high pressure will prevail through Saturday.
336 PM CDT Fri Apr 21 2017 A trough is situated from Hudson Bay and stretching southwest to the Plains. This trough will move southeast tonight into Saturday. The next round on the wrap around from the low is beginning to move in and will continue to so this evening into overnight. 5 inches with the higher values possible in southeast Kansas.
A mid level high pressure system centered over Mexico will shift S-SE overnight into tomorrow as a broad trough swings across the plains. This will result in a NW flow aloft that will push a cold front into S TX Sat. Temps will be slightly cooler Sat due to the front across the north and the south due to more cloud cover, but still a warm day. By Sat night, much cooler with lows in the 50s. The onshore flow will become moderate tonight, then briefly decrease Sat ahead of a cold front. The cold front is expected to push through the waters Sat evening with a strong offshore flow developing in its wake.
626 PM EDT Fri Apr 21 2017 Atlantic high pressure will prevail through Saturday.
221 PM MDT Fri Apr 21 2017 An upper level low pressure center over south central Wyoming bringing widespread rain in the lower elevations with mountain snow will gradually move east with showers tapering off from late evening in the west to early morning in the east. High pressure will bring clearing and lighter winds on Saturday and Saturday night.
339 PM CDT Fri Apr 21 2017 An upper level trough was passing across western Kansas this afternoon. Saturday will be partly to mostly sunny and warmer with highs in the upper 50s to lower 60s.
130 PM AM PDT Fri Apr 21 2017 High pressure aloft near the West Coast will bring dry and warmer weather through Saturday with well above average high temperatures on Saturday except near the beaches.
Snow will continue in the Little Belts, but warmer road temps and it being daylight now should keep travel impacts at a minimum. Currently as of 09z this morning, a negatively tilted H500 trough was orientated from southeast to northwest along the spine of the Rocky Mountains from Colorado through Montana. A gradual decrease in the intensity/areal coverage of the aforementioned band of precipitation is expected through the morning hours, as the trough becomes more neutrally tilted and moves onto the Central Plains. Deep northerly/northwesterly moist flow will also be developing however, as the upper level trough moves east.
Expect a coolish weekend as a weak upper level ridge moves across the area with north-northeast surface flow.
245 PM CDT Fri Apr 21 2017 243 PM CDT High pressure continues to work its way across the region this afternoon, with quiet and dry conditions in place. Cooler temps around 40 expected tonight, with upper 30s still possible over north central Illinois. Rodriguez 248 AM CDT Elsewhere, a seasonally cool Saturday can be expected, with 50s in the metro, possibly upper 50s northwest, with cooler readings at the lake, and possibly south where clouds will linger the longest.
A very warm day is expected on Saturday with highs in the upper 80s to lower 90s across the interior and the lower 80s along the beaches.
352 PM CDT Fri Apr 21 2017 (Tonight and Saturday) Unseasonably cool temperatures can be expected across West Central Texas on Saturday, behind a strong cold front that will move across the area this evening and overnight. Saturday will be dry and much cooler behind the front, with breezy north winds continuing.
Low pressure moving into the southeast United States and a disturbance approaching from the southern Gulf will combine to bring deep tropical moisture over the Keys this weekend with numerous showers and a few thunderstorms expected.
552 PM CDT Fri Apr 21 2017 At 3 PM, high clouds, associated with a short wave trough moving east northeast out of the Southern Plains, has spread north into areas along and south of the Interstate 90 corridor. 12z models continue to show that these clouds will gradually thin overnight and will likely have little impact on the temperatures With partly cloudy skies, dry dew points, and light winds, temperatures will fall into the mid and upper 20s in central Wisconsin and into the lower and mid 30s elsewhere. On Saturday night, a southerly return flow on the backside of the high will bring slightly warmer temperatures into the region.
200 PM MDT Fri Apr 21 2017 High pressure sits over the Dakotas, with an upper trough stretching from MT through CO. Satellite shows a broad band of stratus along the trough, and cumulus developing over portions of the northern plains. Chances for rain showers (with isolated thunderstorms in the early evening) will continue tonight across northeastern WY and southwestern SD, and then gradually diminish overnight as the trough slides south of the region. An upper ridge will bring mild weather for the weekend.
Saturday afternoon looks very pleasant with ridging aloft and temperatures around 60 degrees.
319 PM CDT Fri Apr 21 2017 An area of high pressure over eastern Dakotas will shift south through Saturday, maintaining the clear skies across the Northland through at least tonight, if not much of Saturday. Temperatures should drop into the lower 30s. The increasing westerly flow aloft, ahead of a cold front approaching from the north, could support gusts to around 20 mph. Manually increased the highs for downtown Duluth and Canal Park because the westerly flow will be strong enough to stave off a lake breeze, and to account for downslope warming. Downtown Duluth and the city of Superior should reach highs similar, if not warmer, than inland areas in the higher terrain. There will be increasing clouds from the north Saturday afternoon as the cold front works its way into the Borderland areas.
231 PM EDT Fri Apr 21 2017 Building high pressure has returned dry weather to the region for this evening; however, rain chances will be on the increase along and south of I 70 this weekend as low pressure develops toward the Southeastern United States. Cool, dry high pressure will build and support seasonal overnight lows, but light rain chances will increase, mainly along and south of I 70 as a deepening southern stream low pressure system shunts moisture toward the Upper Ohio Region. That low is conjunction with a crossing northern stream upper trough is likely to generate rain south of the I 70 corridor on Saturday, then funnel moisture across I 68 through the weekend as it digs over the Southeast Conus.
354 PM EDT Fri Apr 21 2017 A low pressure area over southern Quebec will continue to move east overnight. An upper trough will bring a slight chance of rain showers to the North Country on Saturday.
152 PM CDT Fri Apr 21 2017 Upper trough coming out of the Rockies will swing across the Southern Plains later today with the secondary portion of the trough swinging down on Saturday. After the trough moves off a high pressure ridge builds in from the west.
300 PM CDT Fri Apr 21 2017 At 2 PM, an area of low pressure was located southwest of Wichita Falls with a cold front trailing to the west across the southern panhandle. The low will move east tonight and the cold front will begin to push across the state. A pre frontal trough ahead of the front will trigger a few showers and maybe an isolated thunderstorm over the north toward morning over the north. The lack of appreciable moisture and jet dynamics precludes widespread shra/tsra and will maintain the low end chance PoPs for now. Areas along the coast will remain very warm as the warm start to the day coupled with dry air and offshore winds will keep KGLS in the lower/mid 80s.
Clouds will increase late tonight into Saturday morning as another cold front approaches from the west.
Saturday will be warmer than today with highs 55 to 65 in the mountains and 65 to 75 in the lower valleys.
Locations farther to the north should experience widespread precip by around midnight when the front will be lifting northward in response to a potent wave of low pressure to the southwest. 1005 mb low pressure is expected to be tracking through TN. Rainfall should decrease in coverage and intensity over western counties late Saturday night when the low is forecast to be over East Tennessee, though far Eastern Kentucky could stay under showers for the bulk of the period.
Saturday night lows will flirt with freezing owing to a clear sky and light winds following the cool day.
238 PM PDT Fri Apr 21 2017 High pressure overhead into Saturday will bring drier and much warmer afternoon conditions.
212 PM EDT Fri Apr 21 2017 Cooler conditions will continue into the weekend, with some chances for rain, as the front stalls south of the area.
229 PM EDT Fri Apr 21 2017 A moist onshore flow will continue through tonight as a complex area of low pressure over western New England moves slowly eastward. Some wet snow and sleet will remain possible across the higher terrain near the international border. We'll continue to see cool unsettled weather on Saturday as low pressure remains across the area.
An active pattern is expected to continue overnight and into the day on Saturday as a cold front will march from western Tennessee into Middle Tennessee throughout the day -- and into portions of east Tennessee by the late afternoon and evening hours.
345 PM EDT Fri Apr 21 2017 Atlantic high pressure will prevail through Saturday.
336 PM CDT Fri Apr 21 2017 Surface analysis shows high pressure off the Southeast US coast ridging across the Gulf South and Northern Gulf into the forecast area. Southerly flow around the high is bringing in low level Gulf moisture helping to make for another warm and humid day. The cold front is expected to reach the northwest portions of the forecast area shortly after noon on Saturday, then move into lower Southeast Texas and Southwest Louisiana around 4 pm local, and into lower Acadiana around 7 pm.
Drier weather conditions are largely expected on Saturday with an upper level ridge shifting east over the region with the axis over central Montana during the afternoon and evening hours. This will be short lived however as the next upper level trough across the Pacific Northwest will quickly translate east. The upper-level ridge in place over Northeast Montana Saturday night will get knocked down by a cold front descending from Canada.
458 PM EDT Fri Apr 21 2017 Building high pressure has returned dry weather to the region for this evening; however, rain chances will be on the increase along and south of I 70 this weekend as low pressure develops toward the Southeastern United States. Cool, dry high pressure will build and support seasonal overnight lows, but light rain chances will increase, mainly along and south of I 70 as a deepening southern stream low pressure system shunts moisture toward the Upper Ohio Region. That low is conjunction with a crossing northern stream upper trough is likely to generate rain south of the I 70 corridor on Saturday, then funnel moisture across I 68 through the weekend as it digs over the Southeast Conus.
515 PM EST Sun Jan 7 2018 Low pressure will return wintry precipitation to the area Monday.
528 PM CST Sun Jan 7 2018 /00Z TAFS/ A cold front will continue to push through the area during the late afternoon and early evening hours. Starting to see some clearing from the west as the upper level trough approaches and the lift begins to shift east. Gusty winds following a cold front across the Permian Basin and South Plains will arrive late this afternoon/early this evening and wind speeds may be briefly gusty for a few hours before it settles down. Cooler tonight with lows in the mid/upper 30s. More sunshine tomorrow to offset the slightly cooler air mass in place, so highs will be reaching the low to mid 60s.