Aikyam-Lab/Synoptic-Bench huggingface dataset:
/Issued 700 PM EDT Tue Apr 3 2018/ Main focus for period initially is the strong to isolated severe storm potential tonight into tomorrow morning with an amplifying trough/strengthening jet dynamics from the west and a rather robust attendant cold front. Wednesday night should have most areas in the mid to upper 30s and for now it looks reasonable for the far NE mtns to hit the freezing mark.
1052 PM EDT Tue Apr 3 2018 A cold front will move through the region tonight.
For that reason continued the trend of blending the guidance closer to the raw model output, which ended up lowering temperatures a few degrees for both the highs and the lows.
Widespread MVFR cigs expected behind the squall line, but rapid drying in the low levels will bring clearing skies to the northern TAFS between 09z and 12z.
1035 PM EDT Tue Apr 3 2018 Some drier air in the lower levels limited the shower activity as the east coast sea breeze moved inland this afternoon. Winds will veer S/SW as a weak cold front pushes into the deep south. Conditions not favorable for widespread fog but did add some patchy fog over the south interior (Okeechobee/South Osceola) in vicinity of the ridge axis where winds should become calm under clear skies. bcmg S/SW by daybreak as high pres axis along the I-4 Corridor drifts into the Treasure Coast/Lake-O region in advance of a cold front pushing into the Deep South.
Additional storms along the cold front will likely also begin impacting the nwrn zones later this evening. /issued 325 PM CDT Tue Apr 3 2018/ Wx map shows cold front over N TX & SE OK this afternoon. Expecting winds to diminish by late this afternoon into early evening as the frontal trough approaches. Once this area moves east, another area of thunderstorms will likely develop along and just ahead of the cold front, which will spread southeast across our area by late this evening into the early morning hours. This next area of convection is expected to be a more organized line of strong to possibly severe thunderstorms developing along or just ahead of the cold front. Cooler and much drier air will follow along with clearing skies by late Wednesday morning across the area.
The light winds along with clear skies will lead to freezing temperatures across most of the fa late tonight into Wednesday morning.
The low observed dewpoints and high LCL heights are not supportive of a tornado threat.
1004 PM EDT Tue Apr 3 2018 A cold front will move through the region tonight.
Southerly flow will continue tonight across our area as a cold front continues to approach our area from the northwest. Meanwhile, a squall line just ahead of the cold front, which is currently moving eastward across Mississippi, will likely move into our northwestern areas from 06Z-09Z, and continue to push southeastward across the FL Panhandle, SE Alabama, and parts of SW Georgia by sunrise. Low temperatures will reach the lower-mid 60s across our area.
This makes sense since the mid level trough will not pass east of Wisconsin until after 06Z.
831 PM EDT Tue Apr 3 2018 A cold front will move through the region tonight.
509 PM MDT Tue Apr 3 2018 Upper level analysis has vigorous low and associated trof over the eastern Dakotas, with ridging across the western Conus. Upper low and trof will continue to push east as western ridge shifts into the Northern Rockies. Warmer and drier weather is expected for Wednesday, as upper ridging sets up over the western CONUS.
803 PM EDT Tue Apr 3 2018 A cold front will move across the forecast area Wednesday bringing scattered showers and possibly thunderstorms.
1138 PM CDT Tue Apr 3 2018 Passage of a strong cold front earlier today has left windy conditions in its wake with gusts to 35-40mph from the northwest.
/Issued 347 PM CDT Tue Apr 3 2018/ Cold front and associated convection has pushed east of the forecast area.
1223 AM EDT Wed Apr 4 2018 A cold front will push east across the area tonight. Strong thunderstorms and heavy rain are possible with this cold front. Another cold front pushes southeast later this week. These showers and storms are associated with a cold front which should push across our area tonight. High pressure generally through the period with below normal temperatures.
A cold front will bring the potential for a round of storms Wednesday afternoon.
The cold front is currently blowing (literally!) thru the Permian Basin.
A broad area of high pressure briefly builds over the Great Plains and Mississippi River Valley on Wednesday, with a broad elevated warm front over the northern Plains building east. With the lack of high pressure directly over the Northland, vertical motion will be near neutral which will allow for the development of afternoon clouds and areas of snow showers/flurries, especially in northeast Minnesota.
Building sfc ridging along with passage of upper level troughing influences will provide for VFR/SKC sky conditions with winds veering from the any remaining southwest prevailing to northwest prevailing by 05/06Z.
1051 PM EDT Tue Apr 3 2018 A cold front will push east across the area tonight. Strong thunderstorms and heavy rain are possible with this cold front. Another cold front pushes southeast later this week. These showers and storms are associated with a cold front which should push across our area tonight. High pressure generally through the period with below normal temperatures.
828 PM EDT Tue Apr 3 2018 A cold front will move across the forecast area Wednesday bringing scattered showers and possibly thunderstorms.
/issued 931 PM CDT Wed Sep 27 2017/ A cooler and drier airmass continues to filter southward across the Mid South this evening behind a cold front that passed through earlier this evening. Mostly clear skies and breezy north winds will allow low temperatures to drop into the lower 60s north to upper 60s south. A cold front is moving across the region. generally 8-10 degrees cooler than we have seen over the last week or longer.
A cold front will then bring nly winds and increasing wave heights for late Thu nt-Fri. A wly flow and low level thermal ridge will then settle over srn WI on Thu ahead of an approaching cold front and strong upper wave digging into the nrn Great Lakes. Temps will rebound into the lower 70s. Temperatures will rebound into the lower 70s inland with weak warm air advection and sunshine Thursday.
1241 AM EDT Thu Sep 28 2017 Dry and cooler weather expected today under building high pressure.
--Fair, summer-like weather continues as we await the next front-- Upper-air analysis and water vapor imagery show a dry 500mb axis extending across Central Alabama today, with a westward-drifting upper low (also moisture-starved) atop the offshore waters of Western Florida. On Thursday, Maria quickly moves further out into the Atlantic as a trough digs through the Great Lakes region.
1048 PM EDT Wed Sep 27 2017 A cold front continues to approach from the northwest, and is loacted across northern and western KY. The forecast appears to be on the right track tonight, although hourly temps have been running a few degrees cooler than forecast. Some slight tweaks will be made to account for this, but we should still end up with lows in the lower to mid 60s for most locations tonight.
1149 PM CDT Wed Sep 27 2017 Isolated -SHRA have been persistent near kggg and ktyr tonight, courtesy of a slow southeastward moving cold front. /issued 1001 PM CDT Wed Sep 27 2017/ Pesky upper ridge still oriented across coastal Texas and much of our region has slowed the progression of the cold front across the extreme NW sections of our CWA. /issued 247 PM CDT Wed Sep 27 2017/ Approaching cold front continues to very slowly drift sewd across TX/OK/AR this aftn. Upper ridge remains anchored over our region and in conflict with potential convection.
High pressure at the surface will move across the area overnight and help the clouds clear out in most places. Thursday Night Through Wednesday Some showers remain possible Thursday night, mainly across far northern and eastern Wisconsin, as a cold front and a mid level trough axis exit the forecast area.
1001 PM CDT Wed Sep 27 2017 Pesky upper ridge still oriented across coastal Texas and much of our region has slowed the progression of the cold front across the extreme NW sections of our CWA. /issued 247 PM CDT Wed Sep 27 2017/ Approaching cold front continues to very slowly drift sewd across TX/OK/AR this aftn. Upper ridge remains anchored over our region and in conflict with potential convection.
1016 PM EDT Wed Sep 27 2017 A new and chillier airmass will move in overnight behind a dry cold front.
1038 PM EDT Wed Sep 27 2017 A cold front passes tonight.
Cold front still north of the mid state, but should start working its way though the area on Thursday. Isolated showers now dissipating with VFR conditions expected into tonight as weak cold front moves across airports.
955 PM EDT Wed Sep 27 2017 Tropical Cyclone Maria will continue to slowly move northeast from the Outer Banks tonight, then accelerate its movement away from the coast Thursday.
The much anticipated cold front is currently stretched across central KY approximately along a line from Bowling Green to Frankfort. The cooler air and significantly lower dewpoints are lagging the wind shift and front a bit. Significantly cooler weather is expected tomorrow with highs in the mid 70s. Upper level troughing will develop across the northeastern CONUS through the end of the week.
Cooler high pressure over the upper midwest will build across Indiana tonight and bring dry. cooler and more seasonable temperatures to Central Indiana through the weekend.
A large trough persists out west, although a ridge building into the Pacific northwest was beginning to cut off a low in the southwest. Less upper level cloud cover will promote deeper boundary layer mixing and highs 5-10 degrees warmer compared to today. The period begins Thursday night with a weak rex block pattern out west as a building ridge cuts off an upper level low over the Four Corners region.
High pressure aloft and low level offshore flow will provide Western Washington another unseasonably warm sunny day Thursday.
High pressure sinks south of the area already responsible for a light west breeze.
A low pressure system which brought cool conditions to the area will weaken and move to the northeast tonight. Upper low progged to lift northeast into Utah overnight-Thursday taking any chances for precipitation with it. Some north breezes will continue over the next two days, most noticeably within the lower Colorado River Valley. A closed upper low over northwest Arizona this afternoon was generating showers and thunderstorms, mainly east of our forecast area. This system will continue to bring a slight chance of showers and thunderstorms to northeast Mohave County this evening with chances decreasing overnight as the upper low moves toward the four corners region.
The area remains in a weak pressure pattern/col at the surface, while an upper level low remains anchored over the eastern Gulf of Mexico.
An upper level low is currently located across Arizona. In the meantime, slightly less cooler lows are expected, particularly across the western FA, as upslope flow continues through the overnight. The upper low will move across western Colorado by early tomorrow afternoon.
Sct050-070 is then forecast for the afternoon with broken periods during the evening along with slight chances of showers with a cold frontal passage. A cold front will then bring nly winds and increasing wave heights for late Thu nt-Fri. A wly flow and low level thermal ridge will then settle over srn WI on Thu ahead of an approaching cold front and strong upper wave digging into the nrn Great Lakes. Temps will rebound into the lower 70s. Temperatures will rebound into the lower 70s inland with weak warm air advection and sunshine Thursday.
A weak cold front will move through the region starting tonight and into tomorrow. Precip is mostly confined southwest of the Highway 49 corridor and any thunderstorms should be very isolated because of the instability limits posed by the mentioned warm temperatures aloft. A cold front on the doorstep of the Arklamiss Delta at this hour will slowly slide southeast through the region between later this afternoon and later on Thursday. Moisture convergence along this boundary will not be great with predominant ridge influence aloft imposing big limits on deep instability. /BB/ The period will start off with an upper-level low continuing to slide east across the northern Gulf of Mexico with ridging over Northern Mexico and a longwave trough moving moving onto the West Coast.
Cold front still north of the mid state, but should start working its way though the area on Thursday. VFR conditions expected this TAF period at BNA/MQY/CKV as a cooler drier airmass moves into the region.
/issued 350 PM CDT Wed Sep 27 2017/ Wx map shows cold front across C TX northeast through SE OK/NW AR this afternoon, not much further south from yesterday. Temperatures in the lower 90s.
Current surface analysis places low over northeastern Manitoba, with trough dropping south into eastern North Dakota. Upper level analysis places modest trough over the upper midwest stretching southwest towards a cut-off low over Arizona. Ridge remains over the Pacific northwest. quiet weather is expected as ridge starts building towards the east. Quiet weather expected through the work week as the Canadian Rockies upper level ridge builds into the region, bringing dry conditions and keeping seasonal temperatures in our area.
/issued 250 PM CDT Wed Sep 27 2017/ An upper low remains over Arizona today with enhanced lift over the Lower Trans Pecos. Models are indicating that the heaviest rain will be across the Lower Trans Pecos today where the best lift is located. Temperatures will be colder today with the passage of a cold front and cloud cover staying across the area. The upper trough begins to lift northward on Thursday and upper lift decreases across the area.
High pressure continues to dominate the areas weather with dry conditions and pops were lowered to reflect this. Otherwise minor changes to overnight lows were completed falling into the 40s to low 50s except in the 30s across the higher elevations.
Cooler air was spreading over the area behind a cold front this afternoon.
A cold front is moving across the region. generally 8-10 degrees cooler than we have seen over the last week or longer.
A cooler and drier airmass continues to filter southward across the Mid South this evening behind a cold front that passed through earlier this evening. Mostly clear skies and breezy north winds will allow low temperatures to drop into the lower 60s north to upper 60s south. A cold front is moving across the region. generally 8-10 degrees cooler than we have seen over the last week or longer.
853 PM EDT Wed Sep 27 2017 Surface cold front continues to push southeastward and into Tennessee this evening. The much anticipated cold front is currently stretched across central KY approximately along a line from Bowling Green to Frankfort. The cooler air and significantly lower dewpoints are lagging the wind shift and front a bit. Significantly cooler weather is expected tomorrow with highs in the mid 70s. Upper level troughing will develop across the northeastern CONUS through the end of the week.
A weakening cold front will be approaching the Southern Appalachian Region on Thursday.
With the front now through and high pressure moving in at the surface. Lows tonight should be in the low to mid 50s with highs Thursday generally in the mid 70s. As the upper level ridge begins to build into the area into the weekend. As an upper level trough makes its way into the western U.
On the synoptic scale a mid/upper level longwave ridge is building across British Columbia into Alberta with a broad troughing pattern to the east across Ontario. Lows in the low to mid 40s tonight, highs in the mid 50s to mid 60s.
750 PM EDT Wed Sep 27 2017 High pressure will give way to a mostly-dry cold-frontal passage this evening. Isolated showers beginning to wane across the area as the sun set on the pre-frontal trough activity. Cooler, drier air will invade overnight, helping to maintain steep low-level lapse rates and the potential for stratocu development.
1035 PM EDT Wed Sep 27 2017 Currently - The Florida Keys remain near a col due to Tropical Storm Maria off the Mid-Atlantic Coast, lower pressure over Mexico, and high pressure to both sides. This low is occasionally sending upper level impulses around its southern periphery, and across the Keys. Convective activity within the forecast area over the past couple of hours has been isolated and mainly along a couple of boundaries gulf side of the Lower and Middle Keys. On this date in Florida Keys weather history, in 1957 and 1952, the high temperature in Key West was 92 degrees.
North of front, across northeast Oklahoma, overrunning light precipitation and extensive cloud cover has kept temps in the lower to mid 60s.
1048 PM CDT Wed Sep 27 2017 The short term concern remains timing of next cold front and risk of any showers. Temperatures should cool to close to overall guidance numbers, perhaps a degree cooler to the southeast. Highs in the mid 60s in the northern CWA to the lower 70s in the south look to be a good bet.
and mainly in the cooler valleys of the southwest. Given the low confidence and lack of widespread potential have left it out of the forecast for now. High pressure will continue to bring dry conditions.
Rain is expected to develop across the CO front range/high plains tonight and progress eastward into western KS between 12-18Z Thursday as an upper level low tracks NE from the Desert SW to the 4-Corners region and mid-level warm advection strengthens downstream in CO amidst increasingly diffluent flow aloft and episodic DPVA attendant small amplitude waves ejecting NE into the high plains. Highs should range from the lower 50s in eastern CO (precip/evap cooling) to ~70F in the far east (Hill City) where precipitation will be lighter and onset later.
Also a cold front will drop south late tonight and Thursday. A cold front will move through the area very late tonight into Thursday, bringing northwest winds and slightly cooler highs for Thursday.
Winds turned into the north early this morning in the wake of a cold front. As advertised by the models yesterday, the cooler and drier air lags about 12 to 18 hours behind the frontal passage.
Otherwise light winds and morning lows i the low to mid 40s can be expected across western and central North Dakota. Current surface analysis places low over northeastern Manitoba, with trough dropping south into eastern North Dakota. Upper level analysis places modest trough over the upper midwest stretching southwest towards a cut-off low over Arizona. Ridge remains over the Pacific northwest. quiet weather is expected as ridge starts building towards the east. Quiet weather expected through the work week as the Canadian Rockies upper level ridge builds into the region, bringing dry conditions and keeping seasonal temperatures in our area.
601 PM MDT Wed Sep 27 2017 00Z TAF CYCLE An upper low over northwest AZ this evening will track slowly to the northeast to southeastern UT by Thursday evening. In western NM ceilings 030-050, in the low VFR, are expected through Thursday evening, while eastern NM airports and KLVS will have IFR/low MVFR ceilings.
IFR ceilings at MLC should become low-VFR next few hours as drier air associated with high pressure continues to spread into ern OK/nwrn AR. The ongoing slow moving cold front continued to push across far Southeast Oklahoma and Western Arkansas this evening. the drier air will continue to filter into the CWA as the cold front finally pushes south of the Red River.
720 PM EDT Wed Sep 27 2017 A cold front will push through the area late this afternoon and evening with clouds and perhaps a few showers. This front will usher in much cooler air, which will persist through the weekend. High pressure fading as a cold front approaches western NY and northwest PA. The cold front will finally kick it out Thursday. Late tonight before the deeper moisture leaves some lake enhanced showers are possible across the higher terrain of central NY.
608 PM CDT Wed Sep 27 2017 Beautiful early fall weather continues across the region, under the influence of a broad area of high pressure. With decent mixing expected, high temperatures will be mild, in the low to mid 70s. Strong trough digging into the northern Great Lakes on Thursday night will help to reinforce the dominance of the northern branch of confluent flow across the region, and will drive a backdoor boundary poised from eastern SD to southwest MN southward overnight.
1202 AM EDT Thu Sep 28 2017 A new and chillier airmass will move in overnight behind a dry cold front.
919 PM EDT Wed Sep 27 2017 High pressure will give way to a mostly-dry cold-frontal passage this evening. Cooler, drier air will invade overnight, helping to maintain steep low-level lapse rates and the potential for stratocu development.
853 PM EDT Wed Sep 27 2017 A cold front will push through the area late this afternoon and evening with clouds and perhaps a few showers. This front will usher in much cooler air, which will persist through the weekend. Cold front has already moved through Rochester and just beginning to encroach on N/W border of CWA and will be moving SE through the forecast area over the next few hours bringing cooler, drier weather. High pressure fading as a cold front approaches western NY and northwest PA. The cold front will finally kick it out Thursday. Late tonight before the deeper moisture leaves some lake enhanced showers are possible across the higher terrain of central NY.
Nearly perfect weather is expected with highs on Thursday generally in the lower 70s, with light winds and partly cloudy skies.
Expect these clouds to continue to erode late this afternoon and this evening under the influence of surface ridging. Ahead of the boundary, weak low-level warm advection will help temps recover several degrees warmer than today, with high reaching the upper 60s to mid 70s.
A wly flow and low level thermal ridge will then settle over srn WI on Thu ahead of an approaching cold front and strong upper wave digging into the nrn Great Lakes. Temps will rebound into the lower 70s. Temperatures will rebound into the lower 70s inland with weak warm air advection and sunshine Thursday.
/issued 247 PM CDT Wed Sep 27 2017/ Approaching cold front continues to very slowly drift sewd across TX/OK/AR this aftn. Upper ridge remains anchored over our region and in conflict with potential convection.
/issued 242 PM CDT Wed Sep 27 2017/ SHORT TERM (Tonight through Thursday Night): A mid level cut off low over Arizona will drift slowly north toward Utah, with a ridge over the west Gulf and coastal Texas. The local pressure field will remain flat, sandwiched between slowly approaching high pressure from the plains and a weak low pressure center over the southwest Gulf.
Upper low over the southwest CONUS will be on the move Thu and by Thu night will be over the central Rockies and into the northern Rockies by Fri afternoon. Should keep some precip sover the Rockies into the high Plains Thu through Fri as mid/upper warm advection remains in place along with some weak perturbations lifting through the sw flow. Broad upper troughing is expected from the northern Rockies into the northern/central Plains to end the weekend with the main vort max lifting over the northern Mississippi Valley into southern Manitoba.
1034 PM MDT Wed Sep 27 2017 Upper level analysis has a broad trof across the northern and western CONUS with closed low over Arizona. At the surface, high pressure is located across the Northern Plains with mostly clear skies. Upper ridge builds across the area on Thursday with another warm dry day.