Aikyam-Lab/Synoptic-Bench huggingface dataset:
353 AM CDT Wed Sep 20 2017 For this morning, a cold front (currently located in the panhandle) will enter northwest Oklahoma. , 925-850 mb) are progged to be as warm or even warmer than yesterday because of a low-level thermal ridge ahead of the cold front. There is uncertainty on whether convective initation will occur along the cold front. One potential area is across north central Oklahoma--near the Kansas/Oklahoma border--where mid-level temperatures are cooler. The cold front is expected to lift back north as a warm front tonight. Temperatures might be slightly cooler than today as the center of the low-level thermal ridge shifts northwestward with the retreat of the front.
A cold front will move through the area today, entering southeast Oregon this morning and southwest Idaho this afternoon. More noticeable snow is forecast for the higher elevations of Baker County and the west- central and Boise Mountains, with 2 to 6 inches possible above around 7500 feet.
349 AM CDT Wed Sep 20 2017 A cooler, and very dry airmass will work into the area today. This will be while an area high pressure skirts across Nebraska and eastern South Dakota. The strongest winds will be behind the exiting area of high pressure, with some gusts in the 20 mph range across central South Dakota this afternoon. The 500mb low over much of southwestern Canada will shift across Saskatchewan with the trough focusing over the Pacific Northwest, and strong southwesterly flow set up from California through the Northern Plains and Ontario by daybreak Thursday.
238 AM EDT Wed Sep 20 2017 A ridge of high pressure at the surface and aloft will stay locked in place over Pennsylvania for the next 7 days. Clouds associated with a weakening frontal boundary will dissipate over far western PA overnight, and the low level flow becomes light and northerly later tonight as Jose weakens to a Tropical Storm and continues to slowly drift off in a northeast direction.
240 AM CDT Wed Sep 20 2017 An upper ridge will remain over the Mid-South for at least the next seven days. The ridge will actually strengthen over the area through the end of the week. Highs will be in the lower 90s through at least the early part of the weekend. Highs may drop a tad ranging from the upper 80s to the lower 90s.
211 AM EDT Wed Sep 20 2017 Warm temperatures and dry conditions will persist through the remainder of the week and the coming weekend, as high pressure will remain in place across the region. Expect fog to develop not only in the river valleys, but south of Lake Ontario where dew points are the highest. Similarly, look for lows to run in the lower 60s across most locales, with mid to upper 50s in the cooler areas of the Southern Tier and North Country. Look for much of the same on Wednesday, as high pressure will remain in control across the region. 850mb temps will be just a little warmer will result in Wednesday running a couple of degrees warmer, with highs in the low 80s. For our interest here in the Lower Great Lakes region. The staunch summer-like ridge.
Large upper low spinning over western Canada this morning. Western portion of the trof digs south toward the Great Basin for upper flow turning to the southwest overnight. Directly behind it a large trough stretches from central California through Idaho, Alberta, and northern Saskatchewan. Behind that a large ridge resides over the Gulf of Alaska. The coldest air of the northern hemisphere sets over the Arctic Ocean just north of the Alaskan North Slope with modified arctic air making incursions into the trough over the Northwest territories.
An upper level low will dominate the western US through the work week.
218 AM MST Wed Sep 20 2017 Dry conditions will last through Thursday while cooler air gradually filters into the region. A strong and expansive area of low pressure will begin to affect the Desert Southwest Thursday night, lasting into this weekend.
230 AM CDT Wed Sep 20 2017 Warmup should get going in earnest today, as a thermal ridge aloft builds east into the Mississippi Valley. This is just ahead of the cold front, which will be moving east today but will run into the building ridge over the Mississippi Valley. Upper level ridge will become firmly entrenched over the central and eastern U. Have gone on the higher end of the model guidance for high temperatures, mainly low-mid 90s through the weekend.
115 AM EDT Wed Sep 20 2017 A weak upper level trough will slowly dissipate through Wednesday. High pressure will then build over the area then dominate the weather the rest of the week. Showers/thunderstorms have increased across NW Ohio this afternoon near a 7H trough/low that will only slowly dissipate into Wednesday.
Low temperatures will be in the lower to middle 60s. Pesky upper low over wrn Starke county has moved little through this morning and will only slowly weaken newd into srn MI by this evening. Subsidence behind departing trough and increasing swrly flow by late morning will scour any remain fog/low clouds. Given insolation and beginning of upper ridge amplification by aftn expect quite warm temps. This period will be characterized by unseasonable warm and dryness as blocking ridge expands across the Great Lakes upstream of wrn Atlantic tag team of Hurricanes Jose and Maria. In fact upper ridge exceeding 590 dm is seen in several model solutions this aftn suggests some near record temps possible. Given strong/tight model based concensus of both upper ridge intensity and placement will thus drop any/all fallacious pop chances throughout the period.
250 AM PDT Wed Sep 20 2017 Cooler weather continues this week with a chance of showers into Thursday. Western North America trough continues to evolve with the initial wave from earlier this week now lifting out through the northern Great Plains while the next wave drops south off the PacNW coast. The upper trough is forecast to deepen across NorCal over the next 24 hours pushing another cold front southward later today and this evening. QPF will be light, generally less than a third of an inch across the higher elevations and less than a tenth of an inch elsewhere. Even a few inches of snowfall accumulation will be possible across the higher peaks.
upper high pressure remains in control with a warm, moist air mass near the surface. Upper level ridging will restrengthen across the state starting today.
A cold front with a northerly wind shift has entered northwest Oklahoma, and will continue to shift southeastward this morning. /issued 353 AM CDT Wed Sep 20 2017/ For this morning, a cold front (currently located in the panhandle) will enter northwest Oklahoma. , 925-850 mb) are progged to be as warm or even warmer than yesterday because of a low-level thermal ridge ahead of the cold front. There is uncertainty on whether convective initation will occur along the cold front. One potential area is across north central Oklahoma--near the Kansas/Oklahoma border--where mid-level temperatures are cooler. The cold front is expected to lift back north as a warm front tonight. Temperatures might be slightly cooler than today as the center of the low-level thermal ridge shifts northwestward with the retreat of the front.
The chilly low pressure system that has been over the region the past couple of days will slowly move east through Thursday for a gradual drying and warming trend.
/EC/ High pressure at the surface will remain over the forecast area. However, heights aloft will fall over the region during the period as an upper trough to our east is forecast to slowly slide southwest, thus undercutting high pressure aloft to our north. Afternoon heat index values will climb up around the century mark, primarily Thursday, as dew points sit in the low and middle 70s.
Drier conditions are expected for the end of the week into the weekend as upper level ridging builds into the Ohio Valley. Weak mid level low over Central Ohio to continue to weaken and open up as ridging builds into the west. An precipitation that develops will diminish by mid to late afternoon as the mid level ridge builds into the west. Mid level ridge to build into the Great Lakes through the end of the week. Lows to range from the lower to middle 60s. With ridge in place expect general subsidence Thursday. Robust ridge building at the surface and aloft will dictate weather conditions through the period.
High pressure will maintain tranquil boating conditions over the Gulf waters tonight through Thursday night with north to northeast winds around 10 knots with sea around 2 feet with winds becoming northwest along the coast each afternoon as the sea breeze component develops.
236 AM EDT Wed Sep 20 2017 High pressure will remain as the controlling weather feature across Vermont and northern New York during the next 5 to 7 days.
A weak trough trapped between Mississippi Valley high pressure ridge and Tropical Storm Jose will be responsible for isolated to scattered convection today and Thursday. Since this weak trough is embedded in what is otherwise fairly high pressure, temperatures will continue to run above normal.
210 AM EDT Wed Sep 20 2017 A weak upper level trough will move into central NC later today, then drift sewd through Thursday. Otherwise, an upper level high over the Ohio Valley and Tropical Cyclone Jose meandering off the southern New England coast will result in warm and dry conditions across central NC through the rest of the week. Limited by the lack of support/lift in the low-levels and the deep NWLY flow preceding the trough, convective coverage should be no greater than isolated to widely scattered Wednesday afternoon and evening, and largely driven by daytime heating. This should support highs a full category warmer than today, with highs ranging 85 to 90.
352 AM CDT Wed Sep 20 2017 Latest surface analysis shows cold front extends from just west of Salina to Guymon. Thermal ridge will extend from southwest Oklahoma through southeast Kansas, and in this zone, temperatures may climb a degree or two higher than yesterday. Upper pattern will be dominated by large upper trough in the west and upper ridge in the east.
350 AM EDT Wed Sep 20 2017 A weak upper level low will fill and slide SE as high pressure builds over the area tonight. The high pressure will remain anchored over the area through the weekend. Weak upper low will kick off a few showers/tsra this afternoon away from the lake. The weak upper level low will fill and slide SE tonight as upper ridge begins to build in. Expect more sun tomorrow with temps Armonk into the lower to mid 80s as upper level ridge builds in. Summer-like conditions will be in place to end the week as the ridge strengthens aloft, extending well north of the Great Lakes.
Along with the lower dew points will come lower temperatures, with highs in the lower-mid 70s for most areas, which is pretty close to our seasonal normals. Overnight lows will be seasonable to slightly above normal, with readings in the lower-mid 50s by daybreak Thursday. Low-level jet continues to increase Thursday night to 45 to 55 knots, with stout pressure gradient remaining at surface ahead of troughing through the central Dakotas. As a result, elevated CAPE reaches as high as 600-1000 J/kg, and cap to an elevated parcel is fairly weak especially toward the KBKX-KMML areas which is close to the terminus/focus of the low- level jet.
Weak high pressure builds late week through the weekend.
/Issued 352 AM CDT Wed Sep 20 2017/ Latest surface analysis shows cold front extends from just west of Salina to Guymon. Thermal ridge will extend from southwest Oklahoma through southeast Kansas, and in this zone, temperatures may climb a degree or two higher than yesterday. Upper pattern will be dominated by large upper trough in the west and upper ridge in the east.
314 AM CDT Wed Sep 20 2017 Wx map shows weak high pressure over the Southeast U. Scattered afternoon showers and thunderstorms is expected with a weak upper level trough approaching from the west interacting with the seabreeze this afternoon.
With the developing upper ridge axis remaining to our west, a northerly ul wind component will prevail. In the ext fcst, strong upper ridging will lift northward across the rust belt during the weekend.
A cold front is expected to enter northwest Oklahoma later this morning, which will shift the wind to the north. VFR conditions expected to prevail across the region with gusty south winds ahead of approaching cold front. Cold front will move over northwest and west-central Oklahoma terminals near or shortly after 12Z with the front forecast to stall before passing over rest of terminals. Above normal temperatures will continue until deep western trough approaches and clouds/rain chances increase.
1203 AM CDT Wed Sep 20 2017 A cold front will sink slowly southward for tonight into Wednesday across Kansas, with hot temperatures continuing for locations along and east of the frontal boundary Wednesday afternoon.
245 AM CDT Wed Sep 20 2017 A cold front was moving through the area at 07Z and will continue to push southeast gradually slowing and stalling after 12Z as it reaches eastern Iowa and northeast Kansas. General features of the upper pattern show little change from earlier runs except being a bit slower with the transition of the western trough eastward.
543 AM CDT Wed Sep 20 2017 A cold front has moved through the forecast area overnight. The winds will turn from the north to the east or southeast as the high moves through.
As a result of the height rises, upper level winds will begin to back in advance of the upper level trough entering the western CONUS. The large trough covering the western CONUS will open up the moisture stream from the Gulf of Mexico pushing the dryline well into eastern New Mexico.
Low pressure will drag a cold front into the forecast area by this evening, with the front hanging up over the southeast tonight. Forecast confidence is medium: The stalled cold front will continue to weaken across southern Wisconsin Thursday morning. We'll be beneath large scale ridging aloft, so there will be virtually no support for lift other than the weakening front.
230 AM MDT Wed Sep 20 2017 Deep upper trough will remain over the PAC NW through most of the work week, with this system finally pushing east by the weekend. Strong Fujiwara type trough on the southern periphery is in the process of rotating south into the west coast.
411 AM CDT Wed Sep 20 2017 A pre-frontal trough has already made its way through the Panhandles tonight and is followed by a weak cold front making its way through the northern zones right now. Southwest flow aloft will return on Thursday as a trough digs into the western CONUS through the end of the week and weekend.
555 AM EDT Wed Sep 20 2017 A weak upper level low will fill and slide SE as high pressure builds over the area tonight. The high pressure will remain anchored over the area through the weekend. Weak upper low will kick off a few showers/tsra this afternoon away from the lake. The weak upper level low will fill and slide SE tonight as upper ridge begins to build in. Expect more sun tomorrow with temps Armonk into the lower to mid 80s as upper level ridge builds in. Summer-like conditions will be in place to end the week as the ridge strengthens aloft, extending well north of the Great Lakes.
1030 PM PDT Tue Sep 19 2017 Cooler weather this week with a chance of showers into Thursday. JHM Models are in good agreement that a deep upper level trough and associated cold front will move across interior NorCal. The upper trough over the West Coast will usher in cooler air aloft. In addition, the air mass will cool as the upper level trough deepens and reinforces cooler temperatures. The coolest day of the week should be Thursday, with Valley highs in the low to mid 70s.
Overnight lows in the low 70s are expected across the region tonight. These waves will eventually consolidate as upper-level winds become north-easterly when broad low pressure forms over the Mid-Atlantic and Northeast influenced by Jose and a northern stream trough.
Weak high pressure builds late week through the weekend. Cold front approaches by mid week.
414 AM CDT Wed Sep 20 2017 A cold front has moved through the forecast area overnight. The winds will turn from the north to the east or southeast as the high moves through.
/Issued 411 AM CDT Wed Sep 20 2017/ A pre-frontal trough has already made its way through the Panhandles tonight and is followed by a weak cold front making its way through the northern zones right now. Southwest flow aloft will return on Thursday as a trough digs into the western CONUS through the end of the week and weekend.
508 PM CST Sun Feb 4 2018 /00Z TAFS/ A cold front will move through the area this evening, resulting in gusty northeast winds of 12 to 16 knots. /issued 254 PM CST Sun Feb 4 2018/ (Tonight and Monday) Quiet weather will continue the next 24 hours, with cooler temperatures for Monday. A backdoor cold front currently situated along the Red River to our north will drop south across the area this evening, before washing out early Monday.
with freezing line near I-44 along with a 5-10 degree temp drop noted across much of the area over the past 3 hours.
The higher resolution HRRR hinting at around 4am over the Long Beach area. Heights will fall 4-6 DM and this, along with the weaker offshore flow, will probably mean afternoon temperatures 3-6 degrees cooler than today. A little coastal eddy spins up on Monday night and this will deepen the marine layer enough to prevent dense fog as it also pushes the low clouds into the San Gabriel Valley and the Ventura County coastal areas.
531 PM CST Sun Feb 4 2018 An area of high pressure at the surface will drift from South Dakota and Nebraska east into Illinois by Monday morning. The position of the high will keep skies mostly clear over central Wisconsin through the night with temperatures dropping into the single digits below zero. The winds will come around to the southwest on the back side of the high with speeds generally in the 5 to 10 mph range. The short wave trough just off the Pacific Northwest coast today will rapidly move southeast in the strong northwest flow aloft.
Cold front currently just NW of forecast area will move across the area later Tonight. High-res model guidance suggests we may see greater area of IFR or low MVFR CIGs develop ahead of and just behind cold front that will move across TAF sites later Tonight. Cold front will move across the waters late Tonight and very early Monday.
Over the islands, radiation fog is probable as long as the winds don't go dead calm for extended periods of time, especially over the interiors of the larger islands in the lower Keys.
A quick hitting upper level system with an upper level trough axis now over eastern KS and northwest MO will move through the region over the next few hours. High res models weaken forcing somewhat as it moves in, but could see a quick 1-2 inches with the higher amounts over the nw quarter of our forecast area. It will clear out quickly tonight as strong high pressure moves in.
A weak cold front has moved through the area and shifted winds to the north to northeast near 10 to 15 knots. A weak and shallow cold front is pushing across the northern part of the Hill Country as of this writing. A low level cloud deck along the leading edge of the cold front will affect the northern Hill Country and areas east of Highway 71 later this afternoon and evening. Monday is going to be cooled with highs in the low to mid 50s across the eastern two-thirds of the area and in the lower 60s along the Rio Grande.
1031 PM EST Sun Feb 4 2018 A cold front and area of low pressure will move through the area tonight.
632 PM EST Sun Feb 4 2018 A cold front will approach the region this evening, and cross our area overnight.
Latest sfc obs show the cold front has made it thru KMAF, KHOB, and KINK, briefly bringing BLDU and gusty winds. /issued 203 PM CST Sun Feb 4 2018/ Upper pattern has a broad trough extending from from Great Lakes down the Mississippi valley with an upper ridge centered off the coast of CA. As this trough slowly moves east look for zonal flow to set up across the country with mild wx expected.
A reinforcing cold front will drop south through the forecast area overnight. The ensuing tightening pressure gradient as strong high pressure rapidly builds into the region behind the front, will bring some breezy northerly winds to the forecast area overnight. Under mostly sunny skies, highs will range from the lower 50s to lower 60s.
417 PM CST Sun Feb 4 2018 Our midday cold front has made temperature forecast extremely difficult for this evening and overnight. Temperatures have oscillated warmer and cooler early this afternoon and this trend is expected to continue up to sunset. Prior to the low center moving south of the forecast area, we will see strong downsloping winds push our high temperatures into the 60s and low 70s. As the evening approaches our next cold front will take aim at the Panhandles. A lack of moisture in the snow growth zone for all but the northeast Oklahoma Panhandle will keep the precip type between freezing rain and sleet. The trend will be for freezing rain to be favored farther south while sleet will be favored farther north.
552 PM CST Sun Feb 4 2018 Slightly breezy cold front noted northwest of ktxk and kshv will continue to move southeast throughout this evening, leading to a brief period of gusty winds /10-15 mph sustained with 15-20 mph gusts/ especially across the western terminals /only exception may be klfk where the pressure gradient may become a bit more relaxed by the time it reaches the said terminal/. /issued 258 PM CST Sun Feb 4 2018/ Cold front movg into the Red River Valley attm with north winds 10 to 20 mph with fropa. Returning warm front will bring rapidly deepening mstr in sw flow back across area late Monday night.
917 PM EST Sun Feb 4 2018 Low pressure will pass off the New Jersey coast tonight, as a sharp cold front pushes southeast across Pennsylvania.
High pressure over the region will bring dry weather and very warm temperatures through Monday.
1100 PM EST Sun Feb 4 2018 Low pressure will pass off the New Jersey coast tonight, as a sharp cold front pushes southeast across Pennsylvania.
The models indicate weak mid level qg ascent overnight as an embedded short wave trough passes across Wyoming. NAM12 spatial cross-sections the moisture deepening in the high country overnight with strong westerly winds. On Monday, moisture depth increases in the mountains as a strong trough embedded in the flow aloft moves into northern Colorado by late afternoon. This cold front will push into the Urban Corridor from the northeast after 21z. Expect primarily rain showers to develop from northeast to southwest as the cold front pushes into the cwa, with a rain/snow mix possible by 5 pm.
Strong high pressure aloft near the West Coast will maintain dry conditions with unseasonably warm daytime temperatures this week.
the higher elevations in east Tennessee and southwest Virginia could see from 1 to 2 inches. with up to 3 inches in the highest elevations. Temperatures will be below freezing overnight with isolated areas of black ice possible as well. Chattanooga Airport, TN 30 48 35 55 / 10 10 0 30 Knoxville McGhee Tyson Airport, TN 28 44 30 50 / 20 10 0 20 Oak Ridge, TN 28 44 31 50 / 20 10 10 20 Tri Cities Airport, TN 26 40 27 48 / 50 10 0 20 TN.
There may be a brief period of freezing rain across central zones this evening before the colder air works in, but confidence is low at this time.
751 PM MST Sun Feb 4 2018 Added northern Carbon and northern Albany Counties to the High Wind Warning tonight into Monday morning. Early afternoon surface analysis indicated little change in the position of the arctic cold front, generally along the east slope of the Laramie Range, with a 30-40 degree east to west temperature gradient. Upgraded the High Wind Watch for Cheyenne to a Warning and included east Platte County beginning at 11 PM late this evening.
628 PM CST Sun Feb 4 2018 Arctic high pressure axis extended from the center over eastern NE/KS across SD into western ND. Sunny skies across western and central ND this Sunday afternoon under exiting Arctic high pressure.