Aikyam-Lab/Synoptic-Bench huggingface dataset:
235 AM MDT Wed Mar 15 2017 Upper ridge building over the region will lead to dry weather with much warmer temperatures today and on Thursday. The upper ridge will shift off to the east late Thursday with an upper trough and surface cool front creating a chance of rain on Thursday night.
451 AM EDT Wed Mar 15 2017 Currently - A large high pressure system spilling down the central and eastern United States has resulted in fresh northwest to north breezes, along with cooler and drier conditions. The cool post cold front air mass has squashed any shower potential.
The region continues to be under the influence of a building upper level ridge. The challenge in the forecast for today will be the high temperatures. Daytime highs on Thursday will be a little warmer than on Wednesday.
309 AM EDT Wed Mar 15 2017 Strong low pressure well north of the forecast area will continue to help cause breezy conditions today. Canadian high pressure building into the area will bring freezing conditions tonight and Thursday night.
Return flow will begin in earnest on Thursday with a developing lee trough across the Central High Plains. Low clouds and patchy drizzle will overspread the area Thursday as the low levels moisten up.
High pressure over the region will weaken and move to the east today and Thursday.
520 PM EDT SAT MAY 14 2016 A cold front with limited moisture will move through the region this evening.
A dry reinforcing cold front has been pushing its way through the ArkLaMiss region this afternoon. This has brought cooler temperatures to locations across northern Mississippi and a much drier airmass. Readings this afternoon across the Highway 82 corridor have been in the lower 70s with a north wind and dewpoints in the lower 50s to even mid 40s.
A rather strong, but at this point, dry cold front is passing through the southern portion of the forecast area early this morning. North winds have become rather gusty for a time behind the front, as Canadian high pressure builds in from the northern Plains. Precipitation chances will then start to increase later Sunday into Sunday night, as lift increases in association with a warm front, which will slowly lift north toward the area. Precipitation should begin in the form of light and widely scattered showers, as there will initially be a fairly stout layer of dry air that will need to be overcome in the lower levels of the atmosphere.
Clear skies and light winds over the north and east should allow temps to drop into the lower to mid 30s. Cold air advection will be the rule for the period as high pressure builds over central NE.
240 PM MDT SAT MAY 14 2016 Current surface map places high pressure across eastern Montana into western South Dakota. High pressure remains across the area tonight. Lows will be a few degrees warmer than last night, but still cold enough for areas of frost on the plains.
Plentiful sunshine this morning raised temps into the lower 70s but cloud cover is starting to enter NW AL and southern middle TN and it is associated with a cold front. The front will not bring any precip today however it will make our daytime highs in the lower 70s occur in the next few hours.
235 PM EDT SAT MAY 14 2016 Secondary surge of cooler/drier air poised to enter the northwest this afternoon. Cooler and drier airmass brings below normal temperatures to the forecast area tonight through Sunday night.
Cold low level advection will continue through the afternoon in wake of the strong late season cold front.
236 PM CDT SAT MAY 14 2016 Cool high pressure continues to push in at the surface from the west and will be the focus for cool/cold temperatures overnight and even the potential for some scattered patchy frost in favorable areas in the eastern Ozarks. High pressure out in the Plains will shift eastward tonight and become centered over the area on Sunday. The cooler temperatures will be out east where a few low lying areas in the eastern Ozarks my dip into the mid 30s with some patchy frost possible.
An upper level low will move over northwest Oregon tonight and Sunday for cloudy and showery weather.
issued Frost Advisory for all to give folks a heads up on another cool night with widespread frost possible as temps fall into the low to mid 30s. Mixing and some patchy low clouds have allowed for temperatures to stall in the low to mid 30s most of the night. The high pressure system responsible for all this will dominate conditions today, however a northwest flow wave will also bring in some additional cloud cover, which will suppress warming. We will see weak warm advection above the inversion, but past experience suggests that the James Valley in particular has the best opportunity to drop below freezing again tonight. An upper ridge will continue to build through the week helping to bring a warming trend.
Modest ridge over the region today with clearing over the eastern two thirds of the CWA. Ridge breaks down tonight as upper trough moves into the intermountain west.
Colder air will push in behind the deaparting cold front tonight. with some higher elevations dipping into the lower to mid 30s. High pressure to our west will extend into the area Sunday. Lows will be a tad warmer Sunday night as post frontal airmass begins to modify but still around 10 degrees below normal.
An upper level trough and onshore flow will keep clouds. showers and cooler temperatures over the area through Sunday.
342 PM EDT SAT MAY 14 2016 Rain showers will be ending and it will be breezy, much cooler today with unsettled weather throughout weekend. Cold front moving through area right now with just scattered showers expected through the remainder of the afternoon and overnight. with this most likely to occur north of I-80 and in the ridges. In addition, cold advection may lead to a very brief period of near freezing temperatures at highest elevations in West Virginia and Maryland, but with elevated winds and precipitation, this may not be long enough to harm vegetation.
330 PM CDT SAT MAY 14 2016 Northwest flow aloft will continue through Saturday and much of Sunday as a mid-level ridge as depicted on water vapor imagery works its way east from the Central Rockies. A rather cool air mass will remain in place for the remainder of today and overnight behind yesterday's cold front. This will keep afternoon highs in the upper 50s today with overnight lows dipping into the lower 40s and even upper 30s for areas north of the Missouri River. The mid-level ridge responsible for the dry conditions for much of the weekend will erode beginning late Sunday afternoon ahead of a deepening trough across the southwestern CONUS.
1210 PM CDT SAT MAY 14 2016 The 07Z objective sfc analysis indicated the high pressure ridge extended from eastern MT into western NE. This ridge axis will slowly cross the region over the next 24 hours.
1253 PM CDT SAT MAY 14 2016 SHOWERS AND THUNDERSTORMS ALONG A SOUTHWARD MOVING COLD FRONT ACROSS EAST TEXAS AND NORTH LOUISIANA TO SHIFT SOUTH THIS AFTERNOON.
Secondary cold front approaching dry and should remain so as it runs into the dry airmass over the region. /Issued 357 AM EDT SAT MAY 14 2016 / A dry cold front is forecast to move across the forecast area this afternoon and evening. Cooler temperatures can be expected tonight and Sunday.
High pressure over the region is starting to weaken and shift eastward. This signals a change to slightly cooler temperatures and more breezy conditions for the weekend.
254 PM CDT SAT MAY 14 2016 Cold front has completely moved through the CWA this afternoon, and cold air will continue to impact the region over the next few days. With the colder temps to the north, have lows tonight on the Plateau and northeast zones in the mid 30s, with even a few models showing lows getting near freezing. Highs on Sunday will be a bit warmer than today, with most of the area seeing highs in the mid to upper 60s.
319 PM PDT SAT MAY 14 2016 A dry cold front continues to move through the central California interior this afternoon and evening, creating gusty winds over the Kern County mountains and desert this weekend. Mostly sunny and cooler across central CA. Temperatures running 6-14 degrees cooler than 24 hours ago across the San Joaquin Valley. Satellite images show some lower level clouds along an associated cold front moving into the northwest sectors of the central San Joaquin Valley. San Joaquin Valley temperatures will be near seasonal levels in the lower 80s for the next couple of day due to cool marine air moving into the California interior. Winds will weaken during the day Sunday but pick up again during the late afternoon and evening as a strong upper jet behind the trough pushes through central CA.
325 PM EDT SAT MAY 14 2016 A few lingering showers will come to an end early this evening as low pressure continues to exit the area. Clouds and winds will diminish this evening which will allow for cold low temperatures tonight from the lower to mid 30s. High temperatures on Sunday will range from the lower to mid 50s, with low temperatures Sunday night dropping back into the mid and upper 30s. (Tonight through Sunday night) A series of short wave trofs was moving through a larger trof south of a low over Hudson Bay. The colder WPC guidance favors lows near freezing. Blended the Nam with the warmer GFS. An upper level trof will top the upstream ridge and become positively tilted over the Midwest.
157 PM CDT SAT MAY 14 2016 A ridge of high pressure at the surface was situated across the Central and Northern Plains states today and is progged to move southeast over the Middle Mississippi Valley area on Sunday.
Increasing instability ahead an upper low entering the Oregon coast will lead to increasing showers and scattered thunderstorms across north-central Idaho later this afternoon.
Early morning water vapor imagery shows a large trough across the eastern half of North America with a northwest flow prevailing across the Plains States.
A secondary cold front will move across the mid-state this morning.
A secondary (dry) cold front will move through the area late tonight which will be followed by noticeably cooler air. The front will stall south of the area as weak high pressure moves in and re-enforces the dry airmass. Light northwest winds become onshore along the coast during the afternoon which results in cooler temps. A weak coastal trough will develop by late at night as an area of high pressure begins to build north of the area and the remnant frontal boundary moves back north as a warm front. This results in coastal areas of northeast Florida being around 10 degrees warmer than the inland areas.
The cold air advection has caused temperatures to really drop so far, having dropped to near or below freezing for nearly all of the forecast area. Sunday night finds a digging upper level trof dropping due South out of Canada. A pair of vorticity maxes will accompany the trof and generate some light precipitation. Yet another upper trof, this one weaker than the last, will follow behind the previous one. Even though there will be some channeled vorticity accompanying this trof, its weaker.
1119 AM MDT SAT MAY 14 2016 The latest upper analysis shows a broad upper low over Ontario with an upper ridge over the western CONUS. The early morning sfc charts show high pressure centered over northeastern Wyoming and western South Dakota. Temperatures have fallen into the lower 20s over parts of northeastern Wyoming and into the upper 20s to lower 30s western South Dakota. Temperatures today will be warmer than yesterday but high temps will still be 10 to 15F below average. Sunday will a few degrees warmer than today yet still cooler than average.
1245 PM CDT SAT MAY 14 2016 Temperatures this morning have already risen into the low to mid 40s across the region. but mid-level fgen remains as weak transitory ridging expands from the west.
323 PM CDT SAT MAY 14 2016 The strong cold front has pushed south deep into TX.
Utilized a blend of cooler guidance to yield forecast lows in the mid 30s most areas, with lower 30s and even a few upper 20s southwest.
238 PM CDT SAT MAY 14 2016 12z upper-air analysis revealed a mid-level trough from Ontario to the lower Ohio Valley with an upstream ridge over the Pacific Northwest to Great Basin. Attention then turns to the next trough which is currently moving onto the Pacific Northwest coast.
Surface analysis this morning had the center of high pressure over eastern Montana with high pressure ridge extending south into western and central Kansas. Rather dry air was working into the region from the north with dew points at 07Z were in the low to mid 30s in northeast Kansas with upper 20s further north upstream in Nebraska.
Forecast soundings actually look pretty good for snow across parts of Eastern Upper and the higher terrain of Northern Lower into Northeast Lower. All of this points to some likely minor grassy snow accumulations in some areas overnight /especially the higher terrain/. but given afternoon readings in the 30s in many areas it won't take much to fall below freezing. But most parts of the area will be at or below freezing for several hours tonight and I see little downside in raising awareness so people can take the necessary precautions.
206 PM CDT SAT MAY 14 2016 Water vapor satellite shows the next short wave trough is dropping out of Saskatchewan early this afternoon. Visible satellite does show an area of enhanced clouds over the eastern Dakotas associated with a band of frontogenesis in the 1000-500 mb layer ahead of the short wave trough. As the short wave trough goes by to the northeast, enough subsidence should develop in its wake to allow the clouds to dissipate and for clear skies to develop.
457 PM MDT SAT MAY 14 2016 Current surface map places high pressure across eastern Montana into western South Dakota. High pressure remains across the area tonight. Lows will be a few degrees warmer than last night, but still cold enough for areas of frost on the plains.
Latest available satellite imagery overlaid with model streamline analysis as of 200 pm continues to depict low amplitude troughing across the Eastern CONUS as well as the Bahamas,South Florida,Western Cuba and the Florida Keys this afternoon. Water vapor imagery delineates deep dry air embedded within the cyclonic flow on the southern flank of this trough across the Florida Peninsula. Closer to the Keys, a week cool front/trough is draped across Central Florida.
A cold front has moved through most of the area bringing gusty northeast winds. A cold front currently moving south through the Southern High Plains will become yet another focus for convection through the afternoon. Temperatures will be much cooler today with highs well below normal expected across much of the region. An uptick in showers and thunderstorms will occur across the higher terrain tonight and move east through the day Sunday.
306 PM MDT SAT MAY 14 2016 Seeing some breaks in the low clouds over the plains now. A weak southwesterly flow aloft will be over the region Sunday night as the ridge axis shifts to the east.
358 PM CDT SAT MAY 14 2016 Cold front continues to progress through the region this afternoon and is providing just enough lift to spark some isolated showers and a few thunderstorms.
Dry nwly flow aloft along with building sfc ridging influences should result in VFR/SKC conditions all terminals 15/02Z-15/18Z, with nwly sfc winds sustained 5-10kts thru this period also.
308 PM CDT SAT MAY 14 2016 Pocket of cooler air aloft moving through the central portions of the forecast area late this afternoon.
There is a chance for storms to regerate within the next several hours across the northwest and northern part of Corpus Christi CWA as an upper level trough moving across the area pushes to the east. A weak cold front is slowly pushing across the Hill Country. As the cold front pushes to the south, the atmosphere is expected to stabilize with chances of rain ending from north to south this evening with the exception of the southwest counties/southern Rio Grande.
127 PM EDT SAT MAY 14 2016 A cold front with limited moisture will move through the region this evening.
140 PM CDT SAT MAY 14 2016 The upper trough has moved off to the east as ridge builds in from the west.
228 PM MST SAT MAY 14 2016 High pressure over the region is starting to weaken and shift eastward. This signals a change to slightly cooler temperatures and more breezy conditions for the weekend.
346 PM CDT SAT MAY 14 2016 (Tonight and Tomorrow) As of mid afternoon, a weak cold front was was situated roughly along the I-10 corridor. 24 (Sunday Night through Saturday) An upper low will be centered over the Pacific Northwest Sunday resulting in a southwest flow aloft over the forecast area.
such as the lower portion of Plaquemines Parish. which remains in the lower 80s.
Today, the best chance of showers and thunderstorms seem to be along the southern Texas Panhandle closest to the best lift over the cold front which is well south of our area now. The better chance of rain comes on Sunday and Sunday night as low level moisture increases and surface convergence increases along a lee-side trough in eastern New Mexico.
/ISSUED / The cold front is currently pushing south through the state. Today Through Sunday Night The next cold front is dropping SE into NWRN sections of the CWA early this Sat morning.
so forecast updates were issued earlier to address this and to bump up the highs today in most locations.
244 PM CDT SAT MAY 14 2016 Deep upper level low parked between the Hudson Bay and the Great Lakes this afternoon, keeping Central Illinois under northwesterly flow aloft. Same low brought the cold front through the region yesterday and left plenty of cold air in its wake.
A surface cold front was translating southeastward across north FL this evening, with very dry air behind it.
Portions of NW Tennessee and N Mississippi cooler faster than forecast this evening. Temperatures are expected to fall into the low to upper 20s areawide under clear skies and nearly calm winds. The coolest readings will drop into the lower 20s, especially along the Tennessee River Valley. As the surface anticyclone shifts east on Sunday, surface winds will quickly turn around to the south and push temperatures back into the upper 50s during the day.
548 PM CST Sat Feb 25 2017 At 3 PM, a ridge of high pressure produced mostly to partly sunny across the area. A low pressure system will move quickly east across northern Minnesota and northern Wisconsin tonight.
the foregoing deterministic NWPs predict a coastal trough to develop by 12z Sunday. SCA conditions could occur over the Offshore MSA owing to significantly warmer SST values per SPoRT Composite SST. will maintain the low rip current risk.
709 PM EST Sat Feb 25 2017 Showers and scattered thunderstorms with a cold frontal passage this evening.
A dry cold front is moving through the region tonight.
618 PM EST Sat Feb 25 2017 A cold front will continue to push east of the area and offshore this evening.
/issued 400 PM CST Sat Feb 25 2017/ Fair weather through Sunday as high pressure takes hold and moves east through Sunday.
447 PM MST Sat Feb 25 2017 The Tri-State area will see an increase in cloudiness this evening ahead of a weak upper trough that moves across the area.
401 PM CST Sat Feb 25 2017 Eastern OK/northeastern TX centered surface ridging providing the subsidence needed to keep skies clear. High pressure will advance eastward into the southeastern U. as more warm humid air overruns a modifying cooler lower level dome of air. Sunday's afternoon temperatures will likely top out in the lower to middle 70s.
Cool and dry high pressure will advance over and east of the forecast area overnight. High pressure that brought this weather is exiting off to the east attm and looks to move off the Mid-Atlantic states by tomorrow evening.
600 PM CST Sat Feb 25 2017 High pressure will build into the region as the most recent storm system slowly moves out of the Great Lakes.
807 PM EST Sat Feb 25 2017 Showers end this evening as a cold front moves off the coast.
658 PM EST Sat Feb 25 2017 Gusty winds and noticeably colder temperatures are expected in the wake of today's cold front tonight with scattered snow showers across the Alleghenies. A period of brisk and colder west winds are expected overnight in the wake of today's cold front. A few snow showers will also spill downwind of Lake Erie and over the higher terrain along the Alleghenies. Morning flurries and scattered snow showers will come to an end by the afternoon over the NW mtns with winds continuing to decrease as high pressure moves over the area.
High pressure is currently situated over central Oklahoma, giving us southwesterly winds at the surface.
A cold front will move into northwest Oklahoma Sunday and move through at least KGAG and KWWR shifting the winds to northeasterly.
657 PM EST Sat Feb 25 2017 Gusty winds and noticeably colder temperatures are expected in the wake of today's cold front tonight with scattered snow showers across the Alleghenies. A period of brisk and colder west winds will follow in wake of cold front tonight. A few snow showers will also spill downwind of Lake Erie and over the higher terrain along the Alleghenies. Morning flurries and scattered snow showers will come to an end by the afternoon over the NW mtns with winds continuing to decrease as high pressure moves over the area.
Sunday looks dry and perhaps a touch cooler in the east vs today behind weak cold front. The southwest CWA will probably recover enough to match Saturday's high temperatures given fairly decent mixing in the low levels per model soundings.
732 PM EST Sat Feb 25 2017 Cooler temperatures will again be replaced by well above normal temperatures mid-week. Later tonight, the snow showers will depend more on streamers from the Lakes and the real upsloping effect over the ridges. Building high pressure will end precipitation chances overnight with the ridges and locations along and north of I-80 the last holdouts. Wind in the highest elevations could approach Advisory criteria towards dusk. Sunday will feature more docile weather as high pressure at the surface builds in.
516 PM CST Sat Feb 25 2017 High pressure centered over eastern Oklahoma will move east through the Mississippi Valley tonight and into the southeast CONUS on Sunday. The ridge axis will pass east of the CWFA after 06Z tonight which will cause the wind to swing back around to the south. Wind should drop off pretty quickly later this afternoon and this evening as the ridge axis moves closer.
615 PM EST Sat Feb 25 2017 A cool and dry pressure ridge will build over the area Sunday.
Scattered snow showers will continue across southeastern Montana into the early evening as a trough axis continues to push across eastern Montana.
The upper level trough has shifted to the east of the region this afternoon and flow aloft has become more zonal. At the surface, high pressure will build across the area overnight. Thereafter, we will see clearing skies tonight as the high pressure builds in.
1028 PM EST Sat Feb 25 2017 Currently - The Keys reside in a col with a trough to our north and high pressure over the south central United States. Zonal flow aloft and lower level ridging will keep rain chances slim to none. Light northwest to north breezes will strengthen and gradually veer northeast tonight and Sunday as a high pressure system moves eastwards into the southeastern United States.
High pressure will move across the region tonight and result in clear skies and light winds.
1028 PM EST Sat Feb 25 2017 A cool and dry pressure ridge will build over the area Sunday.
645 PM EST Sat Feb 25 2017 In the wake of an upper level disturbance, high pressure will build in the midwest and settle south of the Ohio Valley tonight.