Aikyam-Lab/Synoptic-Bench huggingface dataset:
346 AM CDT Sun Sep 10 2017 Dry and warmer today for areas along and west of the Red River Valley, where skies will remain mostly sunny throughout the day. Behind this boundary, winds will shift to north- nortwhest and will decrease, with cooler and noticeably drier air moving in. As the remnants of Hurricane Irma meander through the Southeast, a strong ridge builds over the Rockies and Northern Plains for the first half of the week.
630 AM EDT Sun Sep 10 2017 High pressure will remain over the area through Monday and bring pleasant conditions. A ridge of high pressure will remain over the region and allow a cool and dry east flow to persist. VFR this period underneath broad ridging sfc and aloft.
559 AM CDT Sun Sep 10 2017 Weather across the Midwest remains mild and dominated by a 1032mb high pressure centered over lower Michigan this morning. Moisture streaming into the region as the remnants of Irma break into the ridging in the northeastern US turns into precip chances in the models for the last few runs up and down the Ohio River Valley. Temperatures are a little modulated in that time frame as well under shower chances, narrowing the diurnal swing with slightly cooler days/warmer nights.
With warmer air moving in and southeast to south winds, we should see overnight lows that are warmer than last night. The trough will continue moving gradually eastward overnight and Monday morning as a stronger trough moves across the northern Canadian Prairies. A cool front will accompany the second trough and may provide enough convergence and forcing for ascent to trigger a few showers Monday morning and afternoon.
An upper level low across South Dakota is clearly visibly in water vapor imagery this afternoon. Forcing from this low has helped to sustain a line of showers and isolated thunderstorms across the local area this afternoon despite the limited instability to work with. expect clearing skies and a rebound in temperatures across the local area as cloudy skies and showers have kept most locations cooler than previously forecast this afternoon. High pressure will remain over the center of the country to start the extended periods as an upper level low spins off the coast of California and the remnants of hurricane Irma track into the southeastern US.
Expect VFR conditions to prevail the rest of tonight into Sun morning across the Rio Grande valley and northern ranchlands as the 500mb ridge across west Texas continues to provide subsidence across deep south TX. Surface and mid-level high pressure will prevail at the aerodromes, producing VFR conditions. The drying trend will continue Sunday and Sunday night with mid level ridging aloft and high pressure in control over Texas and the northwest Gulf, even as Hurricane Irma to the east begins to subtly tighten the surface pressure gradient.
318 AM CDT Sun Sep 10 2017 Upper level trough in the eastern Dakotas was producing an area of showers and isolated thunderstorms across nw IA/sw MN. 3 am temperatures ranged from the upper 40s east to the lower 60s in our sw cwa. Upper level trough shifts eastward while dampening out as it runs into ridging to north of Cat4 hurricane Irma located about 70 miles sse of Key West, FL.
416 AM CDT Sun Sep 10 2017 Current surface analysis places low over southern Saskatchewan with trough dipping southward through eastern Montana and frontal boundary stretching through central into southwestern Montana. Upper level analysis places ridge over the southern plains into the central Rockies while compact low is now moving near far northeast South Dakota into western Montana. Otherwise, mainly quiet weather prevails with southerly winds ahead of the trough.
A weak cold front will spread light rain across the south Washington and north Oregon Cascades tonight. High pressure will build aloft Sunday and Monday for clearing skies and warmer weather.
643 AM EDT Sun Sep 10 2017 High pressure centered over the southern Great Lakes will keep dry conditions over the Ohio Valley today. As mid-level ridging moves to the east on Monday, the remnants of Hurricane Irma will move north into the Tennessee Valley.
552 AM CDT Sun Sep 10 2017 High pressure centered over northern Michigan and southeast Canada will continue drifting east-southeast today. The ridge axis will remain nearly stationary stretching across southern Illinois and southeast Missouri today. Think the combination of easterly flow and the overall cooler atmosphere should translate in to cooler highs today. Wind will likely become light and variable or go calm late tonight as the ridge axis drifts to the west.
Weak cold front passed through our CWA tonight with only some cloudiness. Little if any cooling of max temps is expected behind the front today but min temps tonight will be a few degrees cooler than previous nights. Monday will be dry and a degree or two warmer than today under weak flow aloft.
406 AM EDT Sun Sep 10 2017 High pressure will remain over the area through Monday and bring pleasant conditions. A ridge of high pressure will remain over the region and allow a cool and dry east flow to persist. VFR this period underneath broad ridging sfc and aloft.
251 AM CDT Sun Sep 10 2017 155 AM CDT Quiet weather will continue with clear skies through mid-day Monday as our strong upper ridge keeps the upstream wave across the upper Midwest away and limits the northeast progression of Irma.
/issued 159 PM CDT Sat Sep 9 2017/ Upper level ridging remains firmly in place over Texas extending northward into the central Plains. To the west over California sits a closed low, and to the east lies a trough over New England and the mid Atlantic and Hurricane Irma off the tip of Florida. This in turn pushes the upper ridge over Texas westward to the Four Corners southward into northern Mexico.
236 AM CDT Sun Sep 10 2017 High pressure over the Great Lakes continues to control the weather across the Ozarks region and will remain in control for the end of the weekend.
A cold front is moving through Eastern Montana early this morning. The cold front has brought smoke from Western Montana wildfires to the east overnight and with northwest winds some this smoke will linger over Northeast Montana for most of today. Upper trough will move across the Canadian Prairies today and flatten the ridge into a zonal flow aloft over Montana. Surface Temperatures will be somewhat cooler but still above normal with highs in the 80s. High pressure will be over Eastern Montana tonight with clear skies. Dry weather with continue with somewhat warmer temperatures.
551 AM CDT Sun Sep 10 2017 155 AM CDT Quiet weather will continue with clear skies through mid-day Monday as our strong upper ridge keeps the upstream wave across the upper Midwest away and limits the northeast progression of Irma.
343 AM CDT Sun Sep 10 2017 The quiet weather continues as mid-level ridging and limited low and mid level moisture will result in another dry forecast for the next several days. Afternoon temperatures will be similar, perhaps a couple degrees cooler in some areas, as H85 temperatures run about 1C cooler than yesterday. The next notable shift in the pattern arrives late in the week as the Intermountain West ridge breaks down and gives way to a healthy trough projected to eject into the Pacific Northwest into the Dakotas. While the best dynamics and attendant best chance for precipitation will remain well to the north/west, our forecast area may see just enough upper support, warm air advection, and forcing along a cold front to see a few periodic chances for scattered precipitation.
545 AM CST Sat Feb 10 2018 For the 12Z TAFs: Main concerns for this period will be the low ceilings to start the period, and then the chance for more low ceilings tomorrow morning with snow chances. /Issued 356 AM CST Sat Feb 10 2018/ The cold front which moved through the Panhandles yesterday morning was located across New Mexico up against the front range of the Sangre de Cristo and Manzano mountain ranges. Northern stream trough forecast to push southward out of the northern and central Rockies and the northern and central Plains states today and will approach the Panhandles later today and tonight.
945 AM EST Sat Feb 10 2018 Latest RAP40 analysis shows the axis of an H100-H70 ridge axis extending from Bermuda acrs the I-4 Corridor into the SE GOMex, generating a deep 15KT S/SE flow acrs the FL Peninsula. Negligible dynamic forcing due to the ridge axis overhead. Ridge axis extending from Bermuda acrs central FL will generate a gentle to moderate S/SE breeze over the lcl Atlc waters this aftn. No sig changes expected as the ridge axis remains firmly anchored in place.
415 AM CST Sat Feb 10 2018 Surface cold front has pushed into southeast Oklahoma and western Arkansas this morning, nearing Hugo. Meanwhile surface freezing line extends from near Jay to Okemah. Winter weather advisory remains in effect til noon for much of east central Oklahoma, and we have added Benton/Carroll counties in northwest Arkansas, as these areas have the best potential of seeing freezing drizzle before noon. Latest short term model guidance hints that there could be an uptick in freezing drizzle tonight, mainly across far northeast Oklahoma and northwest Arkansas. Temperatures will be below freezing across the entire area by Sunday. Any lingering precipitation across southeast Oklahoma or western Arkansas on Sunday morning could fall as freezing drizzle. However temperatures should rise above freezing by late morning.
551 AM CST Sat Feb 10 2018 Summary: High pressure today gives way to increasing clouds and a chance of snow for Sunday. A ridge of high pressure was found across the Northern Plains and much of the Upper Midwest early this morning. While the forecast wind chills have nudged warmer with the lack of radiational cooling, still think there's a good chance we'll see advisory criteria readings before 10 AM. An Arctic cold front will drift south out of the Canadian Prairies and northwest Ontario during the day. A positively tilted short wave trof will move through the forecast area Sunday night. At the surface, dry high pressure will be building into the area.
With temps aloft warming above freezing and surface temps flirting with 32 degrees, any precip that manages to reach the ground could cause local icy spots. With overnight lows over northern areas once again close to or just below 32, pockets of freezing rain will once again become a concern. For Sunday there is agreement in the system becoming better organized with a cold front settling south through the region during the afternoon and evening.
623 AM EST Sat Feb 10 2018 Moisture will increase today ahead of an approaching warm front.
518 AM CST Sat Feb 10 2018 Winter Weather Advisories for a light glaze from freezing drizzle early this morning in southeast Kansas and for a couple inches of snow in northern portions of central Kansas this evening. While the frontogenetic forcing does not look overly impressive, the transient lift just ahead of the mid and upper level trof axis and larger snow ratios look to support up to two inches of snowfall generally north of I-70. Therefore plan to issue an advisory for Russell/Lincoln counties with this forecast issuance, with amounts tapering to an inch or less perhaps as far south as the highway 50 corridor, with little more than a dusting expected as far south as highway 54 through early Sunday morning.
322 AM MST Sat Feb 10 2018 Regional surface analysis placed the Arctic cold front from southwest WY to west-central CO to northeast NM. Very cold air mass with center of Canadian ridge from northeast MT to central SD.
5 inches with the highest amounts along the Cumberland Plateau towards Southwest Virginia. Chattanooga Airport, TN 60 57 66 45 / 100 100 90 50 Knoxville McGhee Tyson Airport, TN 59 55 67 44 / 90 100 90 50 Oak Ridge, TN 56 53 65 43 / 100 100 90 40 Tri Cities Airport, TN 60 52 66 44 / 100 100 100 60 NC.
High pressure will remain northeast of the region through the next few days, keeping a light southeast wind flow in place, although the sea breeze will generally turn winds onshore along the coast each afternoon.
Inversion holding tough over the central ridge and valley region late this morning. With overnight lows over northern areas once again close to or just below 32, pockets of freezing rain will once again become a concern. For Sunday there is agreement in the system becoming better organized with a cold front settling south through the region during the afternoon and evening.
Freezing rain and sleet possible tonight. At 400 AM/10Z, the Arctic cold front extended from Sterling City to near Brownwood. Temperatures behind the front were in the lower 30s with gusty north winds. The combination of this low level forcing, coupled with increasing mid level moisture and steep mid level lapse rates may result in elevated convective development tonight, producing scattered areas of freezing rain and sleet. Because of this potential for freezing precipitation tonight, a Winter Weather Advisory has been issued. (Sunday through Sunday Night) The combination of a shallow arctic airmass and some upper level support will produce freezing rain and sleet Sunday morning mainly southeast of a Clyde to San Angelo to Sonora line. Light ice accumulations are possible across this area of West Central Texas, making roads slick and hazardous, especially bridges and overpasses.
Light freezing BR/drizzle continues along and east of I-35 this morning.
Late tonight and early Sunday there is potential for light freezing rain to develop across our northern border counties but given the limited precipitation chances north of the aforementioned boundary.
436 AM CST Sat Feb 10 2018 At 10z, a cold front was located roughly from Stephenville TX, to Fort Worth TX, to Hugo OK, to just south of Talihina OK, to east- northeast into West Central Arkansas. Based on latest frontal position and trends, timing of the front was based more towards the higher resolution short term guidance, which offered a faster timing versus the GFS and ECMWF. The forecast was still trended slightly just a bit slower than the high-res guidance in an attempt to account for the blocking and redirection effects of the terrain in Southeast Oklahoma and extreme Southwest Arkansas. Where temperatures drop below freezing, this would result in a transition to freezing drizzle. The best chances for freezing drizzle tonight should be north of a line from Clarksville TX to De Queen AR.
This is in response to an upper short wave and a sfc coastal trough moving northeast across the eastern and northeastern CWA. Abundant low level moisture with some drying in the mid levels, will lead to areas of fog, possibly dense, once again tonight ahead of a cold front.
407 AM CST Sat Feb 10 2018 The upper pattern has a broad trough across the center of the country. This trough will sweep east and as it does another upper trough will move ashore the NW Coast.
Precipitation will remain as all snow across the forecast area with areas of very light snow to continue through this morning with stronger areas of development extending eastward out of Colorado into far southwest Nebraska and northwest Kansas by mid day as the area of best lift associated with the upper trough begins to transition the area. As the upper trough sweeps across the area roughly from west northwest to east southeast, expect the favored area of precipitation to continue to stretch eastward across the forecast area as the entire pattern transitions further south during the evening before dissipating Sunday morning.
The far southeast corner, around Kenosha, will see the higher snowfall rates through about 8am. Considerable amount of DAVA/drying noted in the wake of the trough. Weak thermal ridging noted.
411 AM PST Sat Feb 10 2018 A coastal eddy will bring more coastal clouds today with significantly cooler high temperatures spreading into the valleys and mountains. A period of moderate offshore flow and gusty Santa Ana winds will follow for late tonight through Sunday morning with Sunday high temperatures cooler for the mountains and deserts and warmer for coastal and valley areas.
345 AM MST Sat Feb 10 2018 A cold front currently stretching from east to west across southern WY will drop south and through eastern UT and western CO today. Very little precipitation fell over the forecast area overnight, mainly orographic showers over the highest peaks of the northern CO mountains. The front will exit southern CO and the 500 mb troughline will pass through the area by about 09z tonight.
301 AM MST Sat Feb 10 2018 Arctic high pressure has brought bitter cold temperatures and mostly clear skies to Northeast Montana overnight. High pressure moves to the east today and a weak wave in NW flow aloft moves through the area. This will bring slightly warmer temperatures along with some clouds. Those cloud will keep Saturday Night warmer with lows near zero. A cold front is expected on Sunday.
301 AM PST Sat Feb 10 2018 Gusty north winds and slightly cooler on Saturday.
Near surface temperatures should drop to just below freezing, introducing the potential for sleet/freezing rain or, with the prospect of losing upper- level moisture, freezing drizzle. Icing, if at all, should be light as temperatures will be just a degree or two below freezing and QPF remains very light. Model runs remain in decent agreement with a southeastward trend of higher qpf over the past 24-36hours, and the highest amounts well to our southeast.
A cold front will slowly move south across area terminals today. At KHRO/KBPK with cold air moving in quicker, freezing drizzle or light freezing rain will be possible at times. Today Through Sunday Night Well, continuing yesterday morning's theme, only minor changes were Anyway, the surface cold front is slowly making its way into northwest Arkansas while fighting to overcome the elevation of the Ozarks as it does so. As the surface boundary moves south, low pressure will ride along it from west to east. Some light precip or drizzle will remain in place across northern and far western Arkansas after temperatures drop below freezing. Light ice accumulation is still possible with this freezing rain/drizzle setup, but the focus will continue to be limited impacts to mainly elevated surfaces.
Cold front currently approaching the Pecos River and is forecast to move a little further southwest before stalling out through the next 24 hours. /issued 407 AM CST Sat Feb 10 2018/ The upper pattern has a broad trough across the center of the country. This trough will sweep east and as it does another upper trough will move ashore the NW Coast.
A cold front will usher in another cold high Sunday. Although the Superblend did not produce much wind, believe the mixing and gradient flow with the high will support at least 10 to 25 mph winds Sunday afternoon.
417 AM CST Sat Feb 10 2018 Short Term (Today through Sunday) A wet start to the weekend is expected across SE Texas and SW Louisiana today as an upper level trough progresses across the region. Showers and a few thunderstorms will remain likely through late this evening before a surface cold front moves through the region early Sunday morning. However, the shallow nature of the cold front will allow for overrunning precipitation to linger through the afternoon on Sunday into Sunday night.
510 AM CST Sat Feb 10 2018 Not much change with respect to the large scale pattern with a broad upper trof still in control over the CONUS along with an amplified ridge situated off the west coast. At the sfc, very strong high pressure/accompanying arctic airmass has dropped into the northern Plains.
The focus will then turn to an Arctic cold front currently moving through west and northwest Texas. The hi-res models, which typically handle these shallow, cold fronts better, have sped up the southward progress of the front today. We continue to monitor for the chance of some freezing rain during the very early morning hours on Sunday for areas generally along and north of a Burnet to Georgetown line. For now, it appears areas generally along and north of a Rocksprings to Fredericksburg to Georgetown line could see a mixture of rain, freezing rain and sleet.
A weak upper trough and its associated cold front will slowly pass through the region this morning. The main impacts will be cooler temperatures, down to a few degrees above normal, and increased winds. The next trough will approach the region from the northwest Sunday, with increasing cloud coverage throughout the day.
Skies should scatter out this afternoon, and temperatures will warm to well above normal levels in the mid 70s to the lower 80s. The Marine Dense Fog Advisory continues until 2 pm and may need to be extended, especially for the cooler shelf waters off of southeast Georgia.
/issued 335 AM EST Sat Feb 10 2018/ TODAY AND TONIGHT: Upper level ridge remains centered across the NW and Central Bahamas this morning with the low level ridge axis stretching across the Florida peninsula. Highs today will continue around 5 degrees above normal in the low-mid 80s, approaching a record high at Naples.
430 AM MST Sat Feb 10 2018 Regional surface analysis placed the Arctic cold front from southwest WY to west-central CO to northeast NM. Very cold air mass with center of Canadian ridge from northeast MT to central SD.
With temperatures well below freezing across most of the area, am expecting some light freezing rain this morning. meaning most of the precip will be in the form of light freezing rain.
Upper level ridge offshore with dry northerly flow aloft and in the lower levels will result in a sunny day today for most locations.
/issued 337 AM CST Sat Feb 10 2018/ The cold front has cleared the forecast area as of 3 am, and the polar air will keep spilling south through the day. Otherwise, it appears that most of the low cloudiness will stay outside the CWA during the day. We do expect the low clouds to fill in tonight and this may help keep temperatures from cratering, but it will still be very cold with lows mainly in the teens. We've kept a mention of flurries across the north and northwest where we think the odds are the highest, but there could be some flurries almost anywhere and possibly some light freezing drizzle across the south.
High pressure continues to build over the region resulting in clear skies and calm winds. Overall, expecting sunny skies with high temperatures in the low to mid 70s.
618 AM CDT Thu Oct 26 2017 The main story of today will be the cold front sweeping through the area leading to a widespread freeze tonight.
1013 AM CDT Thu Oct 26 2017 Current forecast for Today is on track with strong warming expected to take place across eastern Oklahoma and western Arkansas ahead of the potent cold front that will move into northeast Oklahoma late this afternoon.
940 AM EDT Thu Oct 26 2017 High pressure today into tonight.
Southerly winds will intensify this morning as low pressure deepens and moves through central Wisconsin. In the early morning hours, a cold front will swing through, whipping winds around the the west. VFR conditions today, then MVFR Cigs will be possible along and after the passage of a cold front tonight. Breezy sly winds and warm advection will boost temps well into the 50s today, as low pressure over the nrn Great Plains moves into far wrn WI by early this evening. The large upper trough digging ssewd across MN will then lead to an occluded low over central WI late tonight, with its cold front moving ewd across srn WI tonight.
SKC will prevail today through this evening, before AC/cu cigs develop after 06Z Friday over extreme NE TX/SW AR ahead of a cold front, which should be in VC of a CRS/TYR/TXK/HOT line by 12Z. Combined with mostly clear skies and additional compressional warming ahead of the next cold front, high temperatures today should be above 80 degrees F areawide today. The aforementioned cold front will begin moving through the area early Friday morning. The greatest large scale forcing with the broad, positively-tilted upper trough will begin to move into the area by mid- to late-Friday morning.