Aikyam-Lab/Synoptic-Bench huggingface dataset:
324 AM EDT Wed Sep 13 2017 High pressure will provide the region with another cool night, along with valley fog towards daybreak. There will be a slight chance for precip overnight over the higher terrain Thurs night, but expect much of the area to remain dry as the main axis of the trough is expected to sit roughly in the middle of the CWA.
118 AM EDT Wed Sep 13 2017 A ridge of high pressure elongated over the lower Great Lakes will weaken and slide east tonight. High pressure will return for the weekend. Best chance Wednesday will be west closer to the high moisture.
The weather picture during the short term can be summed up with an upper level ridge over the Rockies and the remnants over the Tennessee and Ohio Valleys. Towards the surface, a trough of low pressure will be located across eastern Colorado. As for temperatures, lows tonight are expected to dip into the upper 50s with highs tomorrow reaching into the low to mid 90s. The upper level ridge over the Rockies will remain in place through Thursday then slide eastward and into the Eastern United States by this weekend.
1118 PM MDT Tue Sep 12 2017 An upper level ridge will be over the area tonight and into Wed, but a weak disturbance is forecast to move through the upper ridge on Wed. Highs on Wed across the southeast plains should be around 10 degrees above average, and around 5 degrees above average in the high valley locations. Still expecting a pattern shift mid week with the monsoonal ridge being replaced by a series of disturbances coming into the western conus. the upper level ridge that has been in place across the region is forecast to shift east into the Missouri Valley through Thursday. The Palmer Divide and Raton Ridge seem the be the more favored areas for thunderstorms, but the whole I-25 corridor will likely see some precipitation.
Upper level ridging will begin to build into the Southern Plains region tomorrow and combined with strengthening southerly winds, will lead to a return to above normal temperatures to close out the work week.
138 AM EDT Wed Sep 13 2017 High pressure will provide the region with another cool night, along with valley fog towards daybreak.
South Texas to remain in between a large mid level ridge to the west and broad trough over the east extending from the Western Gulf to the Great Lakes. The nice sea breeze will allow for somewhat comfortable conditions even as temperatures climb slightly above normals with 90s in the Lower Valley and some areas in the mid and upper Valley nearing or exceeding 100 degrees today and Tomorrow with about one week of Summer left.
405 AM EDT Wed Sep 13 2017 A blocking upper ridge of high pressure keeps New England under a mostly clear sky with warm temperatures for the next few days. The blocking surface and upper ridge of high pressure remains over the region so another mostly sunny and warm day. Some high clouds may spill through the ridge at times over southern areas. Tonight will be mostly clear but mid/high clouds well in advance of the remnants of IRMA over the midwest will spill through the upper ridge axis over the region later tonight.
Later tonight, as upper ridging over the plains erodes back to the west a bit, Irma should make the turn we've been expecting and head into the Ohio Valley. Then, upper ridging makes an unwelcome return to the region.
412 AM CDT Wed Sep 13 2017 Region remains under the influence of a weak upper-level ridge axis which extends from the Four Corners region north/northeast into the High Plains. In addition, a closed upper low is just moving onto the California coast. CAM's continue to weaken this activity as it moves east, away from the low-level jet so have left our forecast area dry through the day.
651 PM EDT Tue Sep 26 2017 High pressure over the eastern United States will continue to bring warm and dry weather to the region through Wednesday, while Hurricane Maria stays just off the east coast.
1244 PM CDT Tue Sep 26 2017 A cold front draped across our CWA will be the main story over the next 24 hours. The boundary is expected to usher in a cooler airmass with today being the coolest of the days with highs in the upper 60s to lower 70s due to added stratus clouds behind the front lasting most of the day. This cooler airmass will keep our high temperatures in the lower 70s and our lows in the lower 50s through the weekend, making it one of the nicest weekends of the year.
651 PM EDT Tue Sep 26 2017 High pressure will continue to shift east tonight. A cold front will approach from the west on Wednesday and will cross the region Wednesday night.
SHORT TERM (Tonight through Wednesday Night): Broad high pressure will remain over the area while a new air mass pushes south across the plains and into central Texas Wednesday night. Ridging will build over east Texas and the northwest Gulf however, providing more stability locally, though ample Gulf moisture feeding into the area from the south will provide fuel for unsettled conditions.
334 PM MDT Tue Sep 26 2017 An upper level low pressure system forming near the Nevada, Arizona, California triple point is helping to draw moisture northward across Arizona, New Mexico, Utah and into the Four Corners region resulting in an increase in cloud cover. Thinking the milder temperatures will keep the best snow to the higher peaks during the day on Wednesday and limit the impacts well above pass level. The San Juans above 11,000 feet seem to be most favored for snow accumulations where 4 to 8 inches are possible and to a lesser extent the higher peaks of the West Elks, Elks and Sawatch Range in west-central Colorado with 2 to 4 inches possible.
328 PM EDT Tue Sep 26 2017 High pressure and dry conditions will be in place through tonight. A cold front will move through on Wednesday bringing the chance for showers and a transition to cooler temperatures. A cold front will move through on Wednesday. Cooler air will filter into the area allowing for temperatures to drop down into the 50s Wednesday night. Summary - High confidence in a cooler airmass than recent weeks that will be largely dry with no impact weather.
Satellite imagery and observations plainly show the exiting area of low pressure now over the Dakotas, with mostly clear or partly cloudy skies now moving into NE Montana. Even with a developing closed low pressure center over the Great Basin region through mid week, an over-arching ridge of high pressure will remain in control over the northern Rockies and northern High Plains, which will be responsible for our expected conditions.
157 PM CDT Tue Sep 26 2017 Made a small adjustment to highs this afternoon as the warming trend, or lack thereof, suggested we would be coming in a little cooler. This will occur as the next iteration of a closed low takes shape within the western trough across the Desert Southwest. The forming upper low will act to both increase upper level divergence downstream over New Mexico and West Texas while also drawing the plume of eastern Pacific moisture (partially from the remnants of Pilar) up and over the frontal zone.
/issued 311 AM CDT Tue Sep 26 2017/ A cold front is located this early morning from Lake Michigan down to northwest Texas. Meanwhile, an elongated upper level ridge is noted from the Western Gulf of Mexico up into the forecast area. With a little bit more of ridging aloft, nocturnal shower activity has been less than the past couple of nights, with just a few small showers right off the immediate lower Acadiana coast. The best chance and coverage will be over Lower Acadiana as that area will be located further away from the elongated ridge aloft.
1248 PM CDT Tue Sep 26 2017 Today-Wed: Scattered showers & isolated thunderstorms have been ongoing across Southeast KS where no doubt closest to the slowly-moving & weakening cold front. The sfc cyclone's strengthening would be induced by a deepening upper- deck trof that'll undergo modest cyclogenesis over primarily AZ on Wed. However, the sfc cyclone would remain well west of the CWA as the cut-off low would enable the mid-upper ridge extending from strong high pressure centered over the TX Gulf Coast to Alberta & Saskatchewan to greatly amplify. Fri-Sun: With the afore-mentioned high-amplitude ridge covering the Great Plains dry weather would continue for most of the upcoming weekend.
348 PM EDT Tue Sep 26 2017 High pressure in control today.
558 PM CDT Tue Sep 26 2017 A cold front extending from near Branson to Rolla will continue to move east through the eastern CWA. ushering in drier and cooler air. a broad upper ridge will form over the western half of the nation that will translate eastward into the Ozarks warming temperatures to slightly above normal over the weekend.
Remaining warmer than normal through the end of the week with lighter winds. A little cooler over the weekend.
Although the upper low continues to push off to the SE and mid- level heights have started to increase across the region, a significant amount of moisture remains over the ArkLaMiss. Prior discussion below: Today and tonight: The mid/upper low which has inflated rain chances across the area over the past several days is now finally withdrawing toward the eastern Gulf of Mexico.
132 PM EDT Tue Sep 26 2017 High pressure in control today.
325 PM EDT Tue Sep 26 2017 High pressure will bring us another foggy night tonight and early Wednesday. later Wednesday, a cold front will push through the area and trigger some scattered showers. Cooler air behind the front will be over the area through the weekend, with partly cloudy skies. Enough instability to trigger some very isolated showers over the higher elevations of the Catskills into northeast Pennsylvania. However, very limited moisture in the low levels and even drier air aloft is limiting them. For Wednesday into the evening, a surface cold front pushes through with little support aloft. Some surface based instability available along with low level convergence however the ridging aloft makes for weak mid level lapse rates and overall poor chances for significant convection. This period will be much cooler.
111 PM EDT Tue Sep 26 2017 Warm, humid weather continues today and Wednesday, though it will be cooler for areas closer to the coast. A cold front will move into the area Wednesday night, bringing an end to this warm and humid air mass, replacing it with a cooler and drier one. This cooler, drier weather will last through the weekend. With fog this morning and high clouds crossing the region today, have forecasted slightly cooler readings than yesterday. Otherwise, a large ridge of high pressure will continue to dominate the region today. By Wednesday afternoon, the long awaited cold front will be approaching the region. There may be a shower along the Midcoast as well as moisture converges along a prefrontal trough. Cold front crosses the area Wednesday night with a chance of showers or a thunderstorm as it does so.
213 PM EDT Tue Sep 26 2017 High pressure will bring dry and warm weather through mid-week before the passage of a cold front heralds a return to seasonably-cool conditions lasting through the weekend. High pressure continues to dominate the weather pattern today amid subsident air on the nwrn side of Hurricane Maria and amid an upper ridge. Lacking focused upper forcing for ascent and an instability profile generally below the freezing level, any showers that do form amid this environment will be sparse in coverage and likely driven by warm-rain processes. With the loss of diurnal heating and the passage of the cold front, chances for rain will wane rapidly Wed evening as moisture is scoured and cool, dry air invades in its wake.
521 PM EDT Tue Sep 26 2017 High pressure will bring dry and warm weather through mid-week before the passage of a cold front heralds a return to seasonably-cool conditions lasting through the weekend. High pressure continues to dominate the weather pattern today amid subsident air on the nwrn side of Hurricane Maria and amid an upper ridge. Lacking focused upper forcing for ascent and an instability profile generally below the freezing level, any showers that do form amid this environment will be sparse in coverage and likely driven by warm-rain processes. With the loss of diurnal heating and the passage of the cold front, chances for rain will wane rapidly Wed evening as moisture is scoured and cool, dry air invades in its wake.
643 PM EDT Tue Sep 26 2017 The summer like weather continues on Wednesday with high pressure over the Region.
337 PM CDT Tue Sep 26 2017 3 PM surface analysis showed a cold front extending from northwest AR, through southeast MO, into central IL.
This is apparent even this afternoon as increased gradient is seen over the east coast with Maria passing by and also over the west with the next trough approaching. The next mentioned front will approach the area by Wednesday afternoon but with high pressure holding , this feature will begin to dry and shear out with only a few sprinkles expected.
Coverage will become more widespread overnight as a cold front slowly moves southward across the region. A weak cold front will move slowly south across the terminals through tonight, bringing widespread showers and a few thunderstorms the terminals. /issued 439 AM CDT Tue Sep 26 2017/ (Today and Tonight) Southwest flow aloft will persist across the area through tonight in advance of a closed upper low over the Desert Southwest. At the surface, a weak cold front is currently situated from near Wichita Falls southwest to near Lubbock.
1230 PM CDT Tue Sep 26 2017 Moisture continues to slowly advance over the region as a cold front slowly works into NW Arkansas with the majority of the cloud cover behind the boundary. Aloft, ridging is centered in the vicinity of the Arkansas/Oklahoma and Texas/Louisiana border, impeding the surface boundary's progress. Over the next 24 hours, the ridge will broaden out and flatten a bit, which will allow the front to pick up momentum and move into Arkansas. The cooler air will lag the front. At any rate, once the cooler air begins to move in on Wednesday afternoon, temperatures may actually fall a few degrees in the afternoon over northern Arkansas.
The forecast was updated to extend the High Surf Advisory into tonight, but otherwise the forecast is on track.
309 PM CDT Tue Sep 26 2017 Upper low currently over North Dakota will continue to move northeast, and away from the region tonight. With wet ground in place and fog likely to form, temperatures will probably hold above freezing, but can't entirely rule out patchy frost and will include in grids.
347 PM CDT Tue Sep 26 2017 Rain and few thunderstorms continue to form this afternoon along and mainly behind a surface cold front.
1222 PM CDT Tue Sep 26 2017 Updated aviation section for 18z TAF package Warm and humid conditions will persist today ahead of an approaching cold front. Models indicate the cold front will move across the PAH forecast tonight and will be located east of our region by 12z Wednesday. The cooler, drier air will lag well behind the front, so highs on Wednesday will still reach the 80s. High pressure will be building southward out of Canada, and we will get to enjoy near seasonal conditions.
620 PM EDT Tue Sep 26 2017 A cold front over the western Great Lakes will move across the local area tomorrow.
252 PM CDT Tue Sep 26 2017 The cold front will continue to slide slowly east across the forecast area this evening with isolated showers along it. Instability parameters not very impressive along or just ahead of the front with weak mid level lapse rates and not much in the way of surface or elevated instability, so will continue on with the low chance POPs for showers along and just behind the boundary, mainly this evening. The front should be pushing to our east and south on Wednesday with cooler weather filtering southeast into the region. Warmest readings tomorrow afternoon will be over southeast Illinois with temperatures topping out in the low to mid 80s, while some very pleasant readings settle in over our far northern counties where low to mid 70s will be common.
High pressure will gradually build east across the Pacific Northwest and Northern Rockies tonight through the remainder of this week for warming and drying conditions.
344 PM CDT Tue Sep 26 2017 Early this afternoon, a surface cold front was located from near KUIN to just east of KCOU. Many areas around STL metro and to the S and E will hang on to the clouds all night and remain in the 60s, only slightly cooler than last night.
355 PM EDT Tue Sep 26 2017 The summer like weather continues on Wednesday with high pressure over the Region.
227 PM CDT Tue Sep 26 2017 A few very light shwrs have developed across our extreme ern areas this aftn, where moisture is slightly higher due to the presence of a weak upper low along the central Gulf Coast. Slightly better chances for shwrs/tstms, at least in terms of coverage, will come into play Wednesday, as a cold front begins to move through our region. All of this in spite of the upper ridge, which will remain anchored across S TX even as a disturbance rides over the top and spills in to the ern CONUS through the end of the work week.
Winds also weaker than yesterday though there is still sufficient upper support to get some localized gusts to around 30 in the LA mtns, mainly right around the highway 14 corridor.
Mid level trough this morning continues to rotate northeast towards the far northern plains while the southern stream elongated trough continues to impact much of the western and central conus through the period, advecting mid level moisture into the portions of the central and southern plains. Post frontal stratus continues to build east over the CWA for the morning hours, however expect this to mix out during the late afternoon as the drier and cooler airmass advects into the region. Will keep small chances for showers in the far south Wednesday morning before drier air in the low levels moves on south and any significant isentropic upglide diminishes.
The low level post frontal stratus has begun to partially mix out this afternoon, lifting ceilings as insolation indirectly warmed the cloud layer in this neutral temperature tendency boundary layer. Latest HRRR is quick to redevelop the lower clouds behind this front this evening with quite low ceilings, however that's in contrast to the HiRes NMM/ARW as well as the SREF probabilities for the low clouds. Warmer highs are expected Wednesday, however still about 10 climatological degrees cooler, in the low 70s/upper 60s with light northeast winds.
309 PM EDT Tue Sep 26 2017 A cold front over the western Great Lakes will move across the local area tomorrow.
Showers have developed across north central Illinois ahead of a cold front currently in northwest Illinois. There is a healthy stratus field back behind the cold front, and we will have some of these clouds plus a healthy mid level cloud deck also. KMD 222 PM CDT Cooler, more seasonal, weather is expected later this week and into this weekend.
246 PM CDT Tue Sep 26 2017 A cold front extending from near Branson to Rolla will continue to move east through the eastern CWA. ushering in drier and cooler air. a broad upper ridge will form over the western half of the nation that will translate eastward into the Ozarks warming temperatures to slightly above normal over the weekend.
248 PM EDT Tue Sep 26 2017 High pressure over the eastern United States will continue to bring warm and dry weather to the region through Wednesday, while Hurricane Maria stays just off the east coast.
142 PM EDT Tue Sep 26 2017 Dry and warm high pressure will remain across the region through Wednesday as Hurricane Maria moves slowly northward off the NC coast.
314 PM CDT Tue Sep 26 2017 Upper low will complete its trek across the fa this evening taking rain across the north with it. A bit cooler air works in behind departing wave and if we can clear out temperatures may be able to dip into the 30s with localized frost possible.
230 PM CDT Tue Sep 26 2017 Cold front has moved well south of the Panhandles. An upper level low will move into southwest Arizona by early Wednesday morning.
Most recent images show the activity is favoring the Gulf side of the Lower Keys and the Atlantic side of the Middle and Upper Keys extending well into the Straits. The local surface pattern will remain quite weak over the next few days while a distinct mid to upper level trough near the western edge of Florida eases westward. We will remain quite moist and unstable as the low level flow acquires a light south southeasterly component tonight through late Wednesday. That would be a low amplitude, low level wave/trough that eases across South Florida and the Keys late this week into the early portion of the weekend.
Went a few degrees warmer tonight due to the expected cloud cover.
243 PM EDT Tue Sep 26 2017 High pressure over the eastern United States will continue to bring warm and dry weather to the region through Wednesday, while Hurricane Maria stays just off the east coast.
303 PM CDT Tue Sep 26 2017 Cold front currently located south of OUN, extended northeast to a MKO, Bentonville line.
155 PM PDT Tue Sep 26 2017 High pressure over the Great Basin will continue to bring offshore flow through Wednesday with sunny, warm days and cool nights.
The highest atmospheric moisture remains shunted off to the west and south. 12z soundings support high temperatures between 88 and 92 degrees and Max T grids support this range, leaning toward the warmer side. More significant change looks to come at the end of the week as a front backdoors through the area, followed by an influx of drier and slightly cooler air.
Upper ridge remains in control of our weather pattern, so only slight chances for a few diurnally driven shwrs/tstms today. The presence of the upper ridge/abundant sunshine will result in above normal temps again today, although decreasing sun angle will temper this affect and keep our temps from heating up too much. Pattern to shift as a cold front brings a chance of showers and thunderstorms, mainly north of interstate 20, on Wednesday.
608 PM EDT Tue Sep 26 2017 The summer like weather continues on Wednesday with high pressure over the Region.
Dry wx will be in store for the mid state thru Thu night as ridging influences sfc/aloft continue to be the overall major wx players across our region thru this time period. A weak/dry cold front will approach from the NW and then move into the mid state as Wed progresses. With the passage of above mentioned dry cold front across the entire mid state on Thu, the above mentioned CAA pattern will result in afternoon highs near seasonal normal values in the mid to upper 70s.
343 PM EDT Tue Sep 26 2017 Dry and warm high pressure will remain across the region through Wednesday as Hurricane Maria moves slowly northward off the NC coast.
330 PM CDT Tue Sep 26 2017 Current surface analysis shows trough stretching through Saskatchewan, with ridge over the central Rockies into the central plains. upper ridge builds into the western United States with quiet weather expected over our area. Quiet weather expected through the week as an upper level ridge builds into the region, bringing dry conditions and a return to seasonal temperatures.
342 PM EDT Tue Sep 26 2017 Today's highs around 90 and into the lower 90s may not be seen again until next year. A cold frontal will move across the area late tonight and bring much cooler air to the area.
240 PM CDT Tue Sep 26 2017 The main story in the short-term period is a cold frontal passage. Highs Wednesday will range from the lower 80s in parts of srn Illinois to the upper 80s in the Pennyrile region of western KY.
1218 PM CDT Tue Sep 26 2017 An upper level trough over the northern Plains will move eastward into the northern portion of the Great Lakes region tonight, and send a cold front currently extending from northwestern WI southwest into central OK southeastward through our forecast area today and this evening. Unseasonably warm temperatures are expected again today, especially across east central and southeast MO and southwest IL ahead of the cold front. Cooler temperatures, closer to seasonal normals can be expected across parts of northeast MO today, and northeast and central MO and west central IL tonight. Otherwise, much cooler temperatures will be the main story.