Aikyam-Lab/Synoptic-Bench huggingface dataset:
An upper ridge axis located over eastern Montana will shift east and continue downstream of the CWA tonight and Wednesday. This will provide upper level southwest flow into eastern Montana into the day on Wednesday while a trough deepens across the Pacific Northwest. A cold front will begin to approach the region late in the day, though ahead of this feature expect dry weather conditions, late increasing cloudiness, and warm temperatures into the 60s. Expect increasing west winds in the wake of a cold frontal passage on Wednesday night. Moisture at this time appears limited, though cooler temperatures will prevail through the second half of the week. The next cold front will approach toward the weekend as indicated by the latest 12z model guidance.
238 PM MDT Tue Oct 10 2017 A ridge of high pressure over the state will allow temperatures to rebound to near normal tomorrow. A lee trough is expected to develop near the Front Range late tonight into Wednesday.
252 PM EDT Tue Oct 10 2017 Low pressure moving up the Ohio Valley will bring rain for Wednesday.
A Pacific Northwest storm system will bring much cooler temperatures for the latter half of the week.
334 PM CDT Tue Oct 10 2017 Surface observations this afternoon indicate a cold front extends from Alexandria to the coastal waters south of Sabine Pass. Scattered showers and thunderstorms have developed along the cold front and should continue to do so through the late evening hours across Acadiana. Cooler and drier air will be advected in behind the front through tonight and Wednesday. However, since temperatures have been running well above normal the past several day, "cooler" air will only result in temperatures being near normal for this time of year. All model guidance continues to indicate than an anomalously strong upper level ridge will build over the Gulf Coast through the weekend.
At the surface, a ridge extended from MN through Lake Superior and portions of nrn Ontario atop a low from se MO into srn IL. Otherwise, favorable radiational cooling conditions under high pressure with light winds across may be limited by some lingering high clouds, especially over the south. Nevertheless, expect temps near the lower end of model guidance with min temps ranging from the upper 20s western interior to upper 30s and lower 40s at many Great Lakes shoreline locations.
333 PM CDT Tue Oct 10 2017 Tonight and Wednesday: A cold front is arriving on the doorstop of our CWA this afternoon. Hello, fleeting taste of fall! /DL/ Wednesday night through Tuesday: Any lingering rain showers/storms should be cleared out by Wednesday evening as the upper high pressure ridge shifts over the CWA. Granted, temperatures will remain warmer than normal for this time of year.
1213 PM CDT Tue Oct 10 2017 Skies have cleared for areas north and west of a Yankton, SD to Jackson, MN line, allowing freezing temperatures for much of the area. Freeze and frost headlines are on track, and will remain out until after sunrise, when sunlight will quickly warm temperatures above freezing. Clouds south of this line have kept temperatures notably warmer, in the mid 30s to low 40s. Models have trended a bit cooler for Wednesday morning, as skies remain mostly clear.
SHORT TERM (Tonight through Wednesday Night): Satellite and radar images continue to indicate convection across the southern and eastern portions of the CWA this afternoon as a cold front across the area continues to move southward. Scattered showers and isolated thunderstorms will develop across the coastal sections of the CWA tonight as a weak coastal trough develops across the western Gulf of Mexico. The weak coastal trough will continue to produce isolated to scattered showers across the western Gulf Wednesday and the lower Texas coast Wednesday into Wed night as low to mid level moisture will continue to remain high across northeast Mexico and the Rio Grande valley. Temperatures will be near normal tonight and Wed night and below normal Wednesday afternoon as slightly cooler air filters into the area and cloud cover limits diurnal heating on Wednesday.
212 PM PDT Tue Oct 10 2017 Gusty southwesterly winds will continue tonight ahead of an approaching cold front.
340 PM EDT Tue Oct 10 2017 Low pressure from the plains states will cross the Ohio Valley tonight into Wednesday and weaken.
253 PM EDT Tue Oct 10 2017 A cold front will cross the region tonight.
224 PM EDT Tue Oct 10 2017 A weak front across southern sections of the region will remain about stationary into this evening before slowly lifting back north as a warm front later tonight.
201 PM EDT Tue Oct 10 2017 A warm front will spread rain over the region tonight. This evening will remain dry ahead of a warm front expected overnight. Showers along the warm front will gradually overspread the area in the pre-dawn hours. Focused categorical PoPs along the leading edge of the upper-level trough through midday Wednesday.
111 PM EDT Tue Oct 10 2017 A warm front will spread rain over the region tonight. This evening will remain dry ahead of a warm front expected overnight. Showers along the warm front will gradually overspread the area in the pre-dawn hours. Focused categorical PoPs along the leading edge of the upper-level trough through midday Wednesday. Rain will begin to overspread the area tonight as the warm front advances toward the Mason/Dixon line by 12Z Wednesday. Expecting a rain shadow effect at the onset, with southeast downsloping flow affecting QPF west of the ridges. The low and its attendant mid-level wave will be weakening as they cross the CWA, leading to decreasing rain chances starting Wednesday afternoon/evening.
245 PM MDT Tue Oct 10 2017 Current surface analysis shows high pressure south of the region, with mostly clear skies across the area. Warmer air will continue to build into the area through Wednesday, ahead of approaching cold front.
Low pressure swinging into the Pacific Northwest tonight and tomorrow will produce minimal sensible weather for our area, with only a few southerly breezes tomorrow afternoon and a few degrees of warming expected.
138 PM EDT Tue Oct 10 2017 Aviation High pressure will bring fair weather this morning with temperatures in the 60s to lower 70s by the afternoon. Clouds will be on the increase with rain arriving late in the day and persisting into Wednesday as low pressure tracks south of Lower Michigan.
1225 PM CDT Tue Oct 10 2017 Cold front moving east through the state early this afternoon is bringing some west/NW winds with occasional gusts over 15 kts. Today Through Wednesday Night Upper low and cold front continue approaching this morning and mosaic radar showing ongoing line of convection in far eastern OK as of 830Z. Drier and cooler air will begin filtering in through the day today, especially across the western half of the area. By tonight, some higher elevation areas will drop into the low 40s with all areas finally seeing the cooler, post- frontal air before daybreak Wednesday.
231 PM MST Tue Oct 10 2017 Weak high pressure will return to the region allowing high temperatures to climb back several degrees above seasonal averages on Wednesday.
108 PM EDT Tue Oct 10 2017 High pressure will continue to ridge into the area from the Atlantic through Wednesday.
128 PM CDT Tue Oct 10 2017 Visible satellite imagery and surface observations show the cold front on our western doorstep already, but it has been standing in place there for the past 2-3 hours, awaiting its upper energy push that will propel it on across our FA. Fropa brings gusty shift to west/northwest winds and then drier/cooler air replaces our almost summer like warm/humid airmass for the next couple days thereafter. Dew points some 15-20F cooler are poised to usher across the FA. Ridging upper heights/high pressure will bring warming profile as we head into the weekend.
344 PM CDT Tue Oct 10 2017 Mid and high level clouds generally southeast of a Breckenridge to Sherman line will continue to move northeast through the evening hours. Lows tonight will range from the lower 40s northwest to the mid 50s southeast.
Overnight lows will be warm, with temperatures generally in the low to mid 70s. At the surface, an area of low pressure will push into the Ohio Valley on Wednesday, and a cold front will push across Georgia before stalling near the Altamaha River.
358 PM CDT Tue Oct 10 2017 Fairly decent mid/upper trough currently moving through the area, developing some post frontal showers and thunderstorms across the area. These storms appear to be driven by steep lapse rates - above the low level temperatures inversion - associated with the cold air aloft within the mid/upper wave. A cool overnight period tonight, where temperatures will reside in the upper 30s across northern Missouri to the lower/middle 40s elsewhere, could yield some isolated frost in low spots, where temperatures could drop into the middle 30s.
Currently watching a low pressure system to our west as it begins to slide through Arkansas. Later this morning the low pressure system will begin to slide northeast as high pressure edges into our southeast. By this afternoon the low should be working into southern Illinois/southern Indiana. The low pressure system to our north moves eastward through the Midwest and stretches a frontal boundary down through the Tennessee Valley and Central Alabama. This really isn't a cold front due to lack of significant temperature gradient;however, there is a substantial moisture gradient with dewpoints in the 70s ahead of the front and 50s behind.
319 PM CDT Tue Oct 10 2017 Storm system which ushered in the noticeably cooler airmass is currently lifting slowly northward through the Central Plains. Low cloudiness on the back side of the cyclone will be slow to erode which will impact both overnight low temps and possible fog development.
226 PM MDT Tue Oct 10 2017 Afternoon GOES 16 upper level water vapor imagery showed a compact upper low across the Great Plains beginning to eject north through the midwest. Along the west coast, an upper level trough was digging south off the coast of Washington State. Between the two troughs, a transient ridge of high pressure was located over the Four Corners area. Mostly sunny skies will persist this afternoon and evening as the ridge makes its way to the east. Temperatures will be on a significant ramp up into Wednesday, as warm southwesterly winds develop behind the ridge and the west coast trough makes its way toward the area.
Eastern Kentucky will find itself in the warm sector, ahead of the cold front this evening and overnight, with rain overspreading the region. The cold front is expected to push through eastern Kentucky during the first half of the day tomorrow. There is some question as to whether or not thunder will occur during the day as temperatures warm, however based on latest NAM12 soundings it looks like instability will be shallow and limited to about a 3 to 5 hour window in the afternoon just before the front passes through and cooler/drier flow cuts off best lift potential.
351 PM EDT Tue Oct 10 2017 An area of low pressure will approach the region tonight and a cold front will move through on Wednesday.
1131 AM MDT Tue Oct 10 2017 Mid/upper level low is over western KS and in the process of transitioning eastward.
1228 PM CDT Tue Oct 10 2017 Water vapor imagery this morning was showing an upper low centered over the central High Plains preparing to push into WRN KS. At the surface, large area of high pressure was pretty much in control over most of the central CONUS. Also, a cold front extended from ERN IA to ERN OK with cold air advection spilling into the central Plains.
A high pressure over the Atlantic stretching towards northern Florida today will remain in place for the next few days.
218 PM CDT Tue Oct 10 2017 The surface front and low pressure had made its way through/east of the region this afternoon though lingering low stratus and mist/drizzle was still occuring for some locations. Overnight temperatures area expected to fall into the lower 40s across the region with some locations across western Missouri and southeastern Kansas seeing a few upper 30 readings. Cloud cover will slowly improve from southwest to north east through the day Wednesday with highs only reaching the lower 60s.
Ridging with southwest flow aloft will keep dry and warm conditions in place for one more day. Cold front arrives late on Wednesday with a chance for showers over areas west of Billings, in addition to gusty west to northwest winds.
458 PM EDT Tue Oct 10 2017 A low pressure system will pass by to our south and west Wednesday afternoon and night bringing clouds and some showers to the area especially to the south and west of the Capital District. High pressure will build back in from the north returning fair weather to the area for the rest of the week. Ridging will remain in control through tonight. The approaching short wave and associated low will weaken and be forced to pass to our south and east Wednesday afternoon and night as it encounters the ridge eventually moving off the mid Atlantic coast.
/Issued 935 AM CDT Tue Oct 10 2017/ Temperatures have climbed above freezing in the western Oklahoma and far northwest Texas Panhandles. The closed upper low over southwest Kansas and the Oklahoma Panhandle early today will move east of the forecast area allowing for an upper ridge to build in over the Panhandles today and tonight.
353 PM CDT Tue Oct 10 2017 The cold front has now pushed offshore and we are left with a resfreshing, relatively cooler airmass.
1255 PM PDT Tue Oct 10 2017 Temperatures will trend several degrees cooler through the end of the week.
528 PM EDT Tue Oct 10 2017 A warm front will spread rain over the region tonight. This evening will remain dry ahead of a warm front expected overnight. Showers along the warm front will gradually overspread the area in the pre-dawn hours. Focused categorical PoPs along the leading edge of the upper-level trough through midday Wednesday.
245 PM CDT Tue Oct 10 2017 WV imagery shows the upper trough over ern KS, and its associated cold front has reached the Gulf Coast, leaving West Texas and Southeast New Mexico in a dry slot as post-frontal northerly sfc flow continues. West Texas and Southeast New Mexico will remain under SW flow aloft thru the weekend as the upper ridge centered over the lwr east coast develops westward.
Temperatures between ridgetops and low-lying areas may vary as much as 10F due to the strong low level inversion. Wednesday will be sunny and warmer than today, though highs will remain 5-10F below average, mainly in the upper 60s and lower 70s.
Issued by National Weather Service ELKO NV 345 PM MDT Tue Oct 10 2017 High pressure aloft will bring breezy, dry, and warmer conditions this afternoon. Upper level low pressure moves into the region Wednesday with cooler and unsettled conditions expected for the remainder of the work week.
Low temperatures are forecast to be generally just above freezing by early morning across the plains.
208 PM EDT Tue Oct 10 2017 High pressure off the Southeast Coast will circulate moisture into the forecast area through Wednesday.
The cold front is moving into Coos County this afternoon.
At the current hour, the warm front is draped across the Northern TN valley, NETN and SWVA. However, it all depends on if the cold front pushes through before or after midnight tomorrow because daily lows might occur near midnight tomorrow rather than tomorrow morning. Chances for showers and a storm or two continue tomorrow but chances decrease through the day as the front beings to move into our area, bringing cooler and drier air. Highs will be in the lower 80s once again. Some lingering showers possible across the mountains Wednesday night as the weak cold front exits our area. Behind this, the upper level ridge will reestablish itself and drier air will work into the region.
MSAS analyses confirm that the cold front is moving across the MSA, with drier atmospheric conditions following the front. Deterministic NWP models predict the upper system over the Plains to continue to lift NEWD while a long-wave upper trough moves across the WRN CONUS/Rockies during the period. Expect tide levels at Bob Hall Pier and Port OConnor to reach 2ft msl during the high tide cycles, and thus will maintain the CFW for minor tidal overflow until 12z Wednesday.
352 PM EDT Tue Oct 10 2017 Unseasonably warm and humid weather will continue much of this week as high pressure well offshore maintains southerly winds.
338 PM CDT Tue Oct 10 2017 A fairly tranquil pattern under high pressure. Temperatures will drop to below freezing again tonight for some more morning frost. Temperatures will be on the increase as warmer air advects into the region on Wednesday with dry conditions for the remainder of the week. A mid-level ridge will move from the Upper Midwest and south-central Canada to the northeastern US and eastern Canada early in the period.
The low level jet will also aid in maintaining deep moisture transport into the area tonight. Temperatures should only fall into the upper 40s to middle 50s northwest to southeast across the area tonight, with highs only reaching the lower 60s on Wednesday.
300 PM CDT Tue Oct 10 2017 Lingering band of showers/tstms continues to spread ewd across N cntrl/NE AL this Tue afternoon, well ahead of a weak cold front located from the OH Valley swd into the AR/LA states. The cold front itself will begin to cross ewd into the local area later tonight, although little/if any precip is xpcted along the boundary into the early morning period Wed. Any lingering precip should then quickly come to an end with the onset of the evening hrs Wed, as a strong dome of high pressure out of the Plains states begins to build ewd into much of the region going into Thu.
500 PM MDT Tue Oct 10 2017 Current surface analysis shows high pressure south of the region, with mostly clear skies across the area. Warmer air will continue to build into the area through Wednesday, ahead of approaching cold front.
The entire region is below freezing, with most areas at or below 28F. Highs today should be slightly warmer than yesterday, with near or below freezing temperatures again expected for Wednesday morning (but not as cold as this morning).
348 PM EDT Tue Oct 10 2017 Low pressure moving up the Ohio Valley will bring rain for Wednesday.
/issued 1024 AM CDT Tue Oct 10 2017/ Surface observations show the leading edge of the cold front extends from Alexandria southwest towards north of Beaumont. Isolated to widely scattered showers will continue through the day until a cold frontal passage this afternoon but VFR will continue to prevail. The first true cold front of the season extends down into central Texas and is projected to move into the lakes region of southeast Texas before the noon hour. Cooler afternoon temps are in store also for the aftn hrs with highs expected into the mid 80s.
244 PM MST Wed Jan 3 2018 High pressure ridge continues to build over the Pacific Northwest and Northern Rocky Mountains as a weak disturbance moves southward and away from the forecast area this evening.
At 08Z the leading edge of the cold air was moving into the lower Missouri Valley with the cold front located from southwest Wisconsin into northwest Missouri and northern Kansas. Subzero temperatures will return to much of the area tonight as the ridge axis extends into western Iowa. Cloudy skies may brush western parts of the forecast area into central Nebraska today and tonight along the baroclinic zone between the western ridge and eastern trough.
/issued 510 AM CST Wed Jan 3 2018/ (Today and Tonight) We will finally see some warmer temperatures today despite a very cold start to the day. Skies are clear across West Central Texas early this morning and we'll see full sunshine today with afternoon highs in the lower 50s. Temperatures will be cold again tonight, with overnight lows mainly in the lower 20s.
An associated cold front was entering northern Kansas at 08z with a band of stratus just behind. Temperatures this morning should fall off at least a few more degrees as the front passes and mixing into the warmer air aloft ends, with fairly steady temps likely for northeast locations (in the teens) with mid to upper 20s to the south and west.
Although cloud cover kept temperatures slightly warmer than expected last night, they were able to drop a few degrees cooler after 6 am in the Metro area and west as clouds cleared quickly. Temperatures will rebound today to their warmest values in a few days and the entire region should spend at least a few hours above freezing this afternoon. Although high temperatures will get a few degrees above freezing today and Thursday at most places, and lows will not be quite as extreme as last night, have opted to extend the hard freeze warning, especially given the recent strain on life and property.
looking for lows to drop only into the lower to mid teens. With temps below freezing. will continue mention of freezing fog in the forecast for there. H5 ridging to the west combined with west-northwest surface flow will bring the area above normal high temps ranging from around 40F east up to the upper 40s to near 50F west. Above normal warmth is expected to continue as amplified H5 ridge shifts into the Plains region.
This will begin the relax tomorrow (Thursday) as the low continues to move northward and bombs out.
344 PM CST Wed Jan 3 2018 Despite the passage of a cold front last night, with a few flurries, temperatures today have been rather.
/issued 326 AM CST Wed Jan 3 2018/ After several days with below freezing temperatures, the entire area will warm well into the 30s with 40s across the west and south this afternoon. This will be in spite of a weak surface cold front that will move through the area this morning, but abundant sunshine and a downslope component to the low level winds will help.
The forecast focus will be on temperatures until late in the weekend when the pattern changes and brings us warmer weather and a chance of precipitation. For today, the front will come through tonight with high pressure building into the region tonight and Thursday. Temperatures today will mostly be in the lower to upper 20s from northeast to southwest across the forecast area with temperatures dipping back down into the single digits for most areas, to teens over the far southwest forecast area.
As the upper low swings out of the area, we will see any flurries fade and sun will begin to shine by the afternoon.
Another upper level trough over the eastern Pacific will approach the area Sat and produce another round of light warm advection snow for much of the forecast area. Long wave ridge over western North America shifts into AK with troughs moving into the West Coast. Long wave trough over eastern North America weakens and expands into the northern Atlantic.
1055 AM MST Wed Jan 3 2018 Pretty tranquil weather in the short term as high pressure to our west deflect any Pacific storm system north.
We're seeing a brief respite from the sub-freezing temperatures across the Tennessee Valley today, but it won't last long. Another cold front will push through overnight, bringing in a reinforcing surge of cold air and gusty winds. Wind chill advisory in in effect across the higher elevations tonight through Thursday morning. At the start of the period, the forecast area the higher elevations of SW Virginia ill remain under the influence of the eastern U. trough. Persistent northwest flow will bring a chance of light snow to the highest terrain of southwest VA and northeast TN mainly for Thursday night.
TFJ An upper ridge will build across the western US and Canada the next few days which will bring warmer air into the region. Northeast Montana will remain in NW flow aloft to the east of the ridge axis.
Upper level ridge of high pressure continues to build over the Pacific Northwest. As a result warmer temperatures will slowly move back into North Central and Southwest Montana over the next few days.
The ridge axis will settle in over Minnesota tonight.