Aikyam-Lab/Synoptic-Bench huggingface dataset:
1145 PM CST Thu Nov 30 2017 For the 01/06Z TAF period, VFR conditions will prevail as passing cirrus continues to shift across the region behind a weak cold front.
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.
203 AM EST Fri Dec 1 2017 High pressure through the weekend.
323 AM CST Fri Dec 1 2017 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.
446 AM EST Fri Dec 1 2017 High pressure overhead will maintain dry conditions and seasonably warm temperatures through the weekend.
1146 PM CST Thu Nov 30 2017 An area of high pressure is moving across the Central Plains today allowing for mostly sunny skies across the area that will persist throughout the next few days. The high will continue to move through the area tonight and exit to the east on Friday morning.
1155 PM CST Thu Nov 30 2017 A ridge of high pressure is building across the area at the surface this evening. High pressure is building into the center of the country this afternoon, with an upper trough moving through the Great Lakes and ridging along the northern Atlantic coast. A cold front associated with the upper level trough has moved through IL last night and this morning. In the wake of the boundary, cooler temperatures and northwesterly winds dominate. The clear skies behind the front will continue through the overnight hours as the high pressure ridge axis drifts eastward.
1240 AM EST Fri Dec 1 2017 A weak cold front will move offshore this morning. Mild, Pacific high pressure will follow the front for the weekend. Located along and south of the surface warm front, these sprinkles and associated mid-level clouds are likely related to a weak upper level disturbance ahead of the main upper level trough. As the cold front approaches the area tonight, expect much of the pre-frontal shower activity to dwindle as it moves into Central NC. In the wake of the exiting cold front Friday morning, high pressure will gradually build into the area from the NNE Friday and Friday night.
The RAP model was a few degrees cooler than the HRRR models and our previous official forecast. The HRRR models appeared to be a compromise between the cooler MET/ECS temperature guidance and the very warm MAV guidance. The models show a portion of the high cloudiness across Wyoming and Idaho will drift across Nebraska today but in general, nearly full sun is expected.
316 AM EST Fri Dec 1 2017 High pressure building into NY and PA will bring clearing skies and pleasant temperatures to our region this weekend. Building high pressure will bring clearing skies and comfortable temperatures to NY and PA today.
As winds eventually turn around to the south with the eastward shifting High pressure ridge, we'll see moderating temps as well, for the weekend mainly.
Temperatures ranged from the upper teens and 20s across the high plains to the 30s- around 40 west outside the mountains.
1155 AM CDT Tue May 9 2017 Stalled front extended from low pressure over western Illinois across Missouri and northern Kansas at 11 am. High pressure was over the Dakotas and into north central Nebraska. Subjective 00Z upper-air analysis indicates a breaking-down omega block pattern, with upper-level ridging centered over the central Plains. Upper-level lows were centered in southern QB and over the northern Gulf of CA, as well as in the Gulf of Alaska and a smaller low embedded in troughing across BC/AB/SK. Lows at 850mb were centered in northern SK and northern QB, with a trough extending along the Dakotas-MN border through central NE to the western KS-NE border.
942 AM MDT Tue May 9 2017 Current surface analysis shows low pressure over southern UT, with weak high pressure over ND. Upper level analysis shows a cutoff low over southern AZ, with persistent ridge remaining across the MS River valley region. Current surface map shows high pressure across eastern Montana into the western Dakotas. Shower activity will end across much of the area tonight as northern stream trof slides through the northern plains, with showers lingering into Wednesday afternoon along the Nebraska border. Upper level ridge builds into the northern plains for the last half of the week.
With moist south to southeast winds occurring along the Cheyenne Ridge, getting some pretty low vis at the WYDOT sites (widespread 300-500 ft). Low clouds will be slow to clear through the morning, especially along the Cheyenne ridge where upslope southerly llvl flow will persist. Will show the highest pops (60-80 percent) over this time period.
Seeing steady winds of 10 to 15 mph with gusts into the low 20s. More northwesterly flow aloft will set up across the area tonight as any upper ridging gets pushed further south as a deep upper low begins to develop across Manitoba and far western Ontario. The drier air in place from earlier in the day will eventually be replaced by increasing moisture/cloud cover being pulled around the upper low overnight. As the previously mentioned upper low remains nearly stationary around the Manitoba/Ontario border region, the area will remain in cooler northwest flow aloft.
701 AM EDT Tue May 9 2017 The slow moving low pressure system that has been stuck over our region, will finally start to pull away. Upper level low has overstayed its welcome, and will finally be sent east to bug our neighbors in New England. A weak wave on periphery of upper low, as well as a passing jet max, could still muster up a couple spotty showers in Central New York today. Some of our typically coldest spots such as Cortland-Norwich- Corning-Elmira-Sidney-Oneonta-Delhi could easily dip to around freezing.
The low pressure system currently over northwest Mexico will continue to bring unsettled weather as far north as the Great Basin through midweek.
738 AM EDT Tue May 9 2017 WV imagery and RAP analysis indicated a a mid/upper level ridge from nw MN through nw Ontario between cutoff lows over Quebec and w cntrl Manitoba rsulting in nw flow through the nrn Great Lakes. At the surface, a trough extended from cntrl Manitoba through MN into ern IA. Today,look for increasing mid clouds as the trough over MN only slowly edges to the east an area of 295k-305k isentropic lift spreads across the area. Otherise, with weak WAA and greater cloud cover temps should climb into the low to mid 50s. Tonight, although models suggest a shortave trough moving through WI late tonight could bring some light pcpn to Upper Michigan, the more consistent drier CMC/ECMWF/GFS were preferred compared to the NAM given the marginal moisture available and weak forcing.
A few thin high clouds are accompanying an upper ridge building into the Pacific Northwest today.
1013 AM EDT Tue May 9 2017 Latest water vapor imagery shows continued ridging over the deep southern CONUS. Maximum temperatures are still on track to reach the low to mid 80s along the coasts and up to 90 degrees over the western interior. /issued 335 AM EDT Tue May 9 2017/ Broad high pressure remains over the region and will keep current benign weather conditons through the end of the work week. Expect generally dry and sunny conditions to continue with max temperatures in the mid 80s over the metro areas and up to the lower 90s interior.
958 AM EDT Tue May 9 2017 Low pressure will repeatedly ride along a stalled front to the southwest over the next several days, resulting in several opportunities for rain.
An upper level ridge is building over the forecast area today and will remain in place through at least midday Wednesday.
931 AM PDT Tue May 9 2017 The low will wobble around and bring possible precipitation and thunderstorms into early midweek for the Ventura and Los Angeles counties.
Waves of low pressure tracking along the boundary will spread mid and high clouds over the SE Michigan terminals during the day while showers and storms remain focused to the west and south along the front. The wind will be driven more by high pressure sliding from Lower Michigan into southern Ontario during the day. Upper level wave exiting Minnesota with a southeast trajectory early this morning, as southeast Michigan continues to be under influence of the massive upper level low over Eastern Canada. Farther removed from the clouds/normally colder Thumb region stands the best chance of seeing frost and temps reaching near freezing.
833 AM CDT Tue May 9 2017 Predom sunny skies prevail across the cntrl TN Valley this early Tue morning, as temp trends rebound into the lower/mid 60s from their earlier lows in the lower/mid 50s. Upper ridge axis over the wrn Gulf states will continue to gradually translate ewd later today into tonight, thereby helping to maintain the seasonably warm pattern well in place across the region. Temps this afternoon look to climb into the lower/mid 80s for most locations, which is near 5-10F above normal for this time of the yr under continued mostly sunny skies.
Have added isold pops to include tstms over portions of ne TX, although even there the high based clouds will not support much precip reaching ground. Still very nice conditions for us with sunshine warming the air into the low to mid 80s today, just a bit above average through midweek. Little change in the pattern with ridging expanding in the plains ahead of the late week vort holding over the Northern end of the Sea of Cortez.
723 AM EDT Tue May 9 2017 High pressure will strengthen over the eastern Great Lakes today into Wednesday. Low pressure from the plains states will move southeast along a warm front in the lower Ohio Valley this afternoon and tonight.
/issued 413 AM CDT Tue May 9 2017/ SHORT TERM (Now through Wednesday): A mid to upper level ridge over the western Gulf of Mexico and a mid to upper level low over Baja region this morning will slowly move east through the period. The persistent low and high level cloudiness will keep high temperatures today and Wednesday near normal and the low temperatures tonight several degrees above normal.
Despite the overcast there should be enough thinning or breaks in the deck to allow afternoon temperatures to top out in the lower to middle 80s.
413 AM MST Tue May 9 2017 An unusually strong low pressure storm system for early May will continue to bring unsettled conditions to the Desert Southwest through Wednesday. The latest radar is showing several large bands of showers and isolated thunderstorms tracking in a cyclonic pattern and northward across the region around the strong low pressure storm center which is crossing into S. CA and the lower Colorado river valley and the high country to the east.
911 AM EDT Tue May 9 2017 High pressure will strengthen over the eastern Great Lakes today into Wednesday. Low pressure from the plains states will move southeast along a warm front in the lower Ohio Valley this afternoon and tonight.
100 PM EDT Tue May 9 2017 High pressure will strengthen over the eastern Great Lakes today into Wednesday. Low pressure from the plains states will move southeast along a warm front in the lower Ohio Valley this afternoon and tonight.
629 AM MDT Tue May 9 2017 With moist south to southeast winds occurring along the Cheyenne Ridge, getting some pretty low vis at the WYDOT sites (widespread 300-500 ft). Low clouds will be slow to clear through the morning, especially along the Cheyenne ridge where upslope southerly llvl flow will persist. Will show the highest pops (60-80 percent) over this time period.
High pressure centered over the region will keep skies mostly clear today and again on Wednesday with warm and dry conditions persisting. Wednesday will be even warmer across west-central and SW Florida with temps climbing into the middle 90s across the interior, closer to 90 near the coast under continued mostly clear skies.
432 AM MST Tue May 9 2017 An unusually strong low pressure storm system for early May will continue to bring unsettled conditions to the Desert Southwest through Wednesday. The latest radar is showing several large bands of showers and isolated thunderstorms tracking in a cyclonic pattern and northward across the region around the strong low pressure storm center which is crossing into S. CA and the Lower Colorado River Valley as well as the high country to the east.
/26/ Today and Tonight: A deep layer subtropical ridge fixed over the Lower MS Valley region will maintain the quiet and warm weather pattern early this week.
1256 PM EDT Tue May 9 2017 High pressure will strengthen over the eastern Great Lakes today into Wednesday. Low pressure from the plains states will move southeast along a warm front in the lower Ohio Valley this afternoon and tonight.
615 AM CDT Tue May 9 2017 Another warm spring day is in store as short wave ridging builds over the area. This along with southerly winds will again push afternoon highs into the lower 80 at most locations. Additional convection will develop across portions of the Plains later Wednesday and move east into our area Wednesday evening as the upper low tracks into the central Plains.
Cooling trend starts Wednesday as gusty southwest winds will usher cooler air over the region.
Temperatures are already in the upper 70s and low 80s after morning lows ranged from the low 60s to low 70s, with 69 registered at the Key West Airport. No changes to the forecast are planned as a ridge of high pressure continues to dominate eastern Gulf, encompassing Florida, the Bahamas, and Cuba. Lows overnight will fall to the low 70s. Dry conditions will persist through the week as the anticyclone anchored in the Florida Panhandle gradually slides southeast to the southern peninsula. Pleasant marine conditions will continue through the week with high pressure keeping winds subdued.
811 AM EDT Tue May 9 2017 Low pressure will repeatedly ride along a stalled front to the southwest over the next several days, resulting in several opportunities for rain.
/issued 335 AM EDT Tue May 9 2017/ Broad high pressure remains over the region and will keep current benign weather conditons through the end of the work week. Expect generally dry and sunny conditions to continue with max temperatures in the mid 80s over the metro areas and up to the lower 90s interior.
901 AM EDT Tue May 9 2017 High pressure will dominate the local pattern today with variable and quickly shifting winds across most areas and little in the way of cloudiness. Expect these plumes will be highly variable through the day and will swing clockwise and the ridge tries to shift offshore later in the day. High temperature will be in the mid 90s but with the subsidence from the ridge fairly strong do not see much of a sea breeze from either coast today with maybe some east coast sea breeze front convergence along Trial Ridge this evening.
1016 AM EDT Tue May 9 2017 High pressure will remain across the region with a dry northwest mid/upper level flow persisting. Temperatures will climb into the mid 80s close to the coast to the lower 90s inland.
1041 PM MDT Thu Aug 31 2017 A mid-level trough axis will continue to traverse the central Rockies this evening. The mid-level trough will sag southeastward across Colorado overnight and into Friday morning.
/issued 340 PM CDT Thu Aug 31 2017/ (Tonight and Friday) Tranquil weather will continue across our area tonight and Friday, with weak ridging aloft over the southern Rockies into west and southwest Texas. With mostly sunny skies and slightly higher 850mb temperatures on Friday, highs are expected to be a few degrees warmer than today and mostly in the lower 90s.
High pressure to the east is enabling some stratus to advect northwest into areas along and east of I-29. This stratus is likely to stay in place until the advancing low pressure system and cold front push it out on Friday.
/issued 358 PM CDT Thu Aug 31 2017/ Upper level high over the desert southwest looks to persist over the next 7 days though it's influence looks to begin to wane in the latter extended. A cold front still sags into the area though, if things continue the way they have all summer, the front could push south of the CWFA.
557 PM MDT Thu Aug 31 2017 A mid-level trough axis will continue to traverse the central Rockies this evening. The mid-level trough will sag southeastward across Colorado overnight and into Friday morning.
741 PM CDT Thu Aug 31 2017 High pressure has led to plenty of sunshine across the Northland today, with a bit more cloudiness across parts of far northern Minnesota. The high will aid in keeping skies mostly clear tonight and winds will become light for most areas. It will be a cool night with lows dropping into the lower to middle thirties over parts of the Arrowhead and over mainly Iron County in northern Wisconsin. It will be cooler along the North Shore.
As we approach the holiday weekend, high pressure will build in from the west behind an exiting trough of low pressure lifting out to our north bringing a more westerly wind flow early Friday shifting northward through the day.
overnight lows tonight will be slightly warmer than normal with lows in the mid to upper 60s. Afternoon highs are expected to be in the low to mid 80s, upper 70s to around 80 Cumberland Plateau Region. Highs will be in the low to mid 70s, around 70 Cumberland Plateau Region. Overnight lows will mainly be in the 60s Sun Night and Mon night, before taking the cool plunge from the upper 50s Tue night into the lower 50s by Thu night.
Strong high pressure aloft will prevail through this Labor Day weekend for above normal temperatures. Meanwhile, a strong upper level ridge of high pressure will prevail over the region through this weekend. Temps on Friday are expected to be 5-10 degrees warmer at most places than they were today.
The low levels indicate a more resistant layer to overcome when compared to the last few evenings. The coastal waters update was sent a bit early this evening to account for the lower coverage of showers/tstms expected through the overnight period.
With that said, shear has been on the weaker side so hail size has held on the lower end so far. A broad upper level trough is projected to encompass the Northern Plains towards the latter half of the extended. ND is on the dry side of the trough; chances for rain overall are slim.
751 PM EDT Thu Aug 31 2017 Very little to discuss for this taf period with stout Canadian high pressure building southward into Lower Michigan overnight. Synoptic scale support for high pressure will remain relatively high throughout the taf period with higher end differential geopotential height rises. * None Much cooler and less humid air is on the way into SE Michigan after the morning frontal passage. Guidance is solidly in the lower to mid 40s inland and outside of metro Detroit, 10 to 15 degrees below normal.
An upper level area of high pressure will build over the region Friday through the weekend. The upper level ridge quickly builds back over the area Friday through the weekend. Only anticipate a slight chance of thunderstorms over the higher terrain with valley locations remaining dry.
High pressure will bring lighter winds and mostly sunny skies on Friday. Strong subsidence behind the cold front that came through last night helped to transport the smoke from the upper levels down to the ground. Quiet weather will persist through Friday night with high pressure overhead. Highs Friday will be a notch warmer than today, upper 60s near the lake and lower 70s inland.
752 PM EDT Thu Aug 31 2017 Seasonably cool Canadian high pressure will slowly build into the region through Friday night as variable clouds gradually trend mainly clear over time.
1126 PM CDT Thu Aug 31 2017 A lead disturbance crossing the upper ridge over western Nebraska and western South Dakota bringing isolated showers to the northwest Sandhills this afternoon. The highest chances near 30 percent west of Ainsworth through North Platte overnight. skies will become mainly cloudy overnight, and raised lows a few degrees to the low to mid 60s. The higher chances will be in the morning at 30 to 40 percent near and east of highway 83.
1202 AM EDT Fri Sep 1 2017 Stout Canadian high pressure will build southward into Lower Michigan overnight. Synoptic scale support for high pressure will remain relatively high throughout the taf period with higher end differential geopotential height rises. * None Much cooler and less humid air is on the way into SE Michigan after the morning frontal passage. Guidance is solidly in the lower to mid 40s inland and outside of metro Detroit, 10 to 15 degrees below normal.
Confidence is fairly low on how the next few hours will evolve given that even the high-res short term models have this activity moving north and not reaching our area.
717 PM EDT Thu Aug 31 2017 Cooler air arrives behind a cold front for Friday. The cold front has advanced southeastward through much of the area through the late afternoon hours and has cleared Latrobe, Wheeling, and Zanesville recently.
Ridge axis across the area shifts southward as Tropical Depression Harvey lifts northeast into the Tennessee/Ohio Valleys and weakens. Ridge axis across the area will begin a gradual movement southward with winds continuing out of the south to southeast up to 10-15 knots.
618 PM CDT Thu Aug 31 2017 A lead disturbance crossing the upper ridge over western Nebraska and western South Dakota bringing isolated showers to the northwest Sandhills this afternoon. The highest chances near 30 percent west of Ainsworth through North Platte overnight. skies will become mainly cloudy overnight, and raised lows a few degrees to the low to mid 60s. The higher chances will be in the morning at 30 to 40 percent near and east of highway 83.
Northwest flow aloft will bring slightly cooler and drier air into the region tonight and tomorrow. An upper level ridge will build into the area beginning tomorrow, and that will bring more heat and even drier air.
This is basically the trend we're seeing in Nrn MS as the cells that develop cross over a pseudo-warm front/weak convergence axis draped W-to-E across the area. Highs tomorrow will only climb into the lower 70s after starting out in the upper 60s under the cloud canopy.
Moisture underneath high pressure aloft will then provide isolated to scattered afternoon and evening thunderstorms Labor Day into next Thursday. A strong ridge of high pressure aloft continued this afternoon from northern California southeastward into far west Texas.
High pressure will bring lighter winds and mostly sunny skies on Friday. Mostly clear skies are expected overnight under high pressure. High pressure will bring lighter winds and mostly sunny skies on Friday. Strong subsidence behind the cold front that came through last night helped to transport the smoke from the upper levels down to the ground. Quiet weather will persist through Friday night with high pressure overhead. Highs Friday will be a notch warmer than today, upper 60s near the lake and lower 70s inland.
1035 PM MDT Thu Aug 31 2017 A Pacific low pressure trough will moves east across the area this evening with showers and isolated thunderstorms through the evening, mainly in the west and north, decreasing after midnight with partial clearing. Temperatures will be cooler behind the trough but warm rapidly with clearing as high pressure builds north and east from the Great Basin through the weekend.
1159 PM CDT Thu Aug 31 2017 Radar depicted isolated showers across the SERN CWA spatially consistent with a surface theta-E ridge per MSAS. Tranquil weather continues in the short term period as what is left of Harvey pulls out of the region to the northeast and high pressure builds. generally in the lower 70s.