Aikyam-Lab/Synoptic-Bench huggingface dataset:
Forecast confidence is high: Rain on the back side of strong low pressure will continue into this morning. It will take a little while for the low levels to saturate before any precip has a chance to make it to the ground. Left rain/snow mention going, with temps in the lowest 1-2 kft right on the border of rain or snow. QPF amounts are on the low side.
Could see some of the highest gusts early in the day, before the gradient begins to relax for the afternoon hours. This robust north flow will lead to cooler temps today, given the colder start to the day. This will lead to good downslope flow and a warmer day for Wed with max temps closer to normal. C drops south by Fri and Fri night, with freezing temps expected to settle over central KS by thu night and areawide by Fri night/early Sat morning. Ketcham A northerly low-level jet max of 50-55 knots (associated with a deepening mid-level trough over the upper Midwest) will move southward across Nebraska and Kansas overnight into midday Tuesday.
1226 AM CDT Tue Oct 24 2017 A dry sfc cold front is moving across our eastern counties with gusty winds. A Canadian air mass will remain in place through Tuesday with a large upper level trough over the eastern CONUS. Highs in the 50s, maybe the lower 60s, will be common.
Strong upper ridge continuing to amplify near the western CONUS coast this morning.
1028 PM PDT Mon Oct 23 2017 Expect mild, dry conditions through the week, as high pressure builds into the Pacific Northwest. The ridge will be briefly interrupted by a fast moving system Wednesday. /Pelatti 06Z TAFS: High pressure will continue to allow for dry conditions with transient middle to high clouds and primarily VFR conditions.
A reinforcing cold front will move through Tuesday morning, bringing gusty north to northeast winds (20 to 25 kts) during the mid morning through the afternoon. The reinforcing cold front is still on track to move through South Texas on Tuesday morning. Strong northerly winds will occur behind a cold front on Tuesday.
434 AM MDT Tue Oct 24 2017 High pressure will be present across the Northern Rockies through midday Wednesday. The presence of high pressure will allow patchy valley fog to develop this morning and again tonight through Wednesday morning.
Some of this high altitude momentum will likely mix down to the ground across the nern corner of the CWA with dispersion of the morning sfc based inversion late this morning. Low temps tonight will be anywhere from 3-8 degs warmer, with warmest readings along the base of the foothills the result of a slightly enhanced downslope flow late tonight.
347 AM EDT Tue Oct 24 2017 A strong upper trough will bring a few showers to the mountains this afternoon and again Wednesday, along with cooler temperatures to the area. High pressure builds back in to close out the week with temperatures warming back to above normal. Another cold front impacts us this weekend. Deep upper trough from the Great Lakes to the TN Valley shifts slowly east today.
334 AM EDT Tue Oct 24 2017 Periods of rain and breezy conditions can be expected today on the southern fringe of deep low pressure over the Great Lakes.
In the wake of the strong cold front expect winds of 15-18knots with gusts of 20-28 knots for mainly this afternoon. Latest RAP analysis and satellite imagery showed a broad upper trough over the Mississippi Valley. This was associated with a reinforcing cold front which was tracking through the region. Clear skies should help to maximize radiational cooling, and lows will range from the middle 30s to the lower 40s.
355 AM CDT Tue Oct 24 2017 As of 3AM this morning, the Great Lakes low pressure system was lagging in deepening as much as we had anticipated at this time, and peak winds overnight have remained around 25-35 MPH. The low is quickly deepening though, and should continue on a northwestern path over the next few hours.
Skies remain clear under strong high pressure. Warm temperatures will continue today under strong high pressure with highs again expected to run around 10-15 degrees above average.
The high pressure ridge aloft responsible for the unseasonably warm weather will gradually weaken this week.
An upper level ridge positioned over the western U. will extend into the CWA today bringing with it dry weather conditions and warmer temperatures. The ridge axis will reach the forecast area by Wednesday which is when temperatures are expected to peak well into the 60s north of the Missouri River with some 70s to the south.
310 AM CDT Tue Oct 24 2017 07z/2am water vapor imagery shows a deep upper trough in place over the Great Lakes/Upper Midwest. The prevailing upper trough will begin to shift eastward out of the region tonight, with lingering showers coming to an end across east-central Illinois during the early evening. Despite the clearing and overnight lows dropping into the lower to middle 30s, west winds of 8-10mph will prevent frost formation. with highs in the lower to middle 50s.
947 AM CDT Wed Jun 7 2017 Low pressure system has continued to work off to the east and is now centered over the Florida Panhandle area. Still some low level wrap around moisture from the low trapped underneath the frontal inversion across portions of the forecast area, mainly east of an Alexandria to Cameron line. Otherwise just cirrus expected today while an elevated nrly flow is anticipated with a tight gradient progged behind the low. No rain is forecast today!!! This morning low pressure is along the coast of the Florida Panhandle, and a trailing cold front stretches southwest off the coast of Louisiana. Aloft, an upper low is also moving along the northern gulf coast. After sunset with the lower dewpoints temps will drop off quickly and be around 5 degrees below normal by Thursday Morning.
925 AM EDT Wed Jun 7 2017 An upper level low will continue to hover around the region through Thursday as high pressure slowly builds south across the Great Lakes.
Skies will be mostly clear today as the region will remain under the upper level ridge ahead of an approaching upper level trough for Thursday. Moisture is rather limited today however, instability is good enough for a few high-based thunderstorms this afternoon over the higher terrain. Temperatures will reach the upper 90s today in the lower valleys. Thursday will be significantly cooler as a cold front moves across the region. The cold front could tighten up the gradient across Southwest Idaho for breezy northwest winds.
609 AM CDT Wed Jun 7 2017 Main feature of interest through the short term period is an mid/upper level low pressure system, shown by satellite imagery to be currently crossing central portions of far northern ND. Trailing to the SSW is the accompanying trough axis, extending through the Central Plains. Northwest flow continues into Thursday with the ridge axis just off to the west. Another weak wave slides around the ridge bringing with it slight thunderstorm chances late afternoon into the evening.
708 AM EDT Wed Jun 7 2017 A weak trough will cross the area today and be accompanied by a few clouds.
632 AM CDT Wed Jun 7 2017 249 AM CDT Looking at another high pressure dominated day. Temps will be cooler along the lake, but 70s are expected elsewhere.
Increasing clouds today ahead of Thursday cold frontal passage.
1048 AM EDT Wed Jun 7 2017 Hydro High pressure will bring fair weather through Thursday.
High pressure will exit the state as a ridge aloft moves in from the west leading to clear to partly cloudy and dry conditions. An upper ridge currently over West and Central Montana will build into the eastern part of the state today. That ridge will remain over Eastern Montana tonight and Thursday. Expect mostly clear skies with some high clouds at times today, tonight and Thursday with warmer temperatures. Surface gradient between the high to the east and developing low to the west will tighten tonight and Thursday which will increase the southeast winds. A warm front will pass through Northeast Montana Thursday Night.
Wind speeds could increase today due to the tightening pressure gradient with the trough to the east and the ridge of high pressure moving in from the west. /issued 355 AM CDT Wed Jun 7 2017/ An upper level trough continues to move eastward and away from the area, while dry northerly flow aloft and a building upper ridge replaces it.
/issued 355 AM CDT Wed Jun 7 2017/ An upper level trough continues to move eastward and away from the area, while dry northerly flow aloft and a building upper ridge replaces it.
/Issued 300 AM CDT Wed Jun 7 2017/ Drier air is making its way southwestward into eastern Oklahoma and western Arkansas in the wake of the back door cold front. Temperatures today will be several degrees cooler than yesterday's, likely just below normal values. Highs tomorrow will be a degree or two warmer than todays, with winds beginning to shift to a southerly direction late in the day as high pressure pushes east.
1202 PM EDT Wed Jun 7 2017 Upper low pressure is sagging southward across the Ohio River into northern Kentucky and continuing southward toward the area. Chattanooga Airport, TN 80 58 78 60 / 10 10 20 10 Knoxville McGhee Tyson Airport, TN 77 57 75 59 / 10 10 40 10 Oak Ridge, TN 78 56 76 58 / 10 10 40 10 Tri Cities Airport, TN 75 54 74 55 / 10 10 60 30.
702 AM EDT Wed Jun 7 2017 A weak cold front continues to sink southward this morning. A low pressure system will develop offshore the Southeast coast on today, then lift north northeast offshore the Mid-Atlantic coast on Thursday. Low pressure also visible forming just off the Alabama coastline along with several waves in the flow that will track along the larger cold front to our south and eventually move northeastward offshore of the Carolina coast. Cloud cover will remain fairly thick throughout the day as an upper low pushes southward from the mid-Atlantic states. Both of these features will head northeast, leaving relatively high surface pressure over central NC and a weakening trough aloft.
947 AM EDT Wed Jun 7 2017 A cold front moved through the region early this morning and has become stationary across southern Georgia and off the SC coast. Upper level trough over the Northeastern states and Mid Atlantic is shifting southeast and has pushed the cold front offshore, where has stalled as it extends back into southern Georgia. Temperatures should be cooler than previous days due to cold advection and threat for showers. Much drier and cooler air will filter into the region.
950 AM EDT Wed Jun 7 2017 Upper level low pressure will develop over the upper Ohio Valley region over the next couple of days, offering cooler temperatures and only slight chances of showers at times through the rest of the week.
644 AM CDT Wed Jun 7 2017 Cool advection in the wake of a eastward moving cold front is supporting a region of stratus moving south this morning. Currently, an upper level low was over the ND/Saskatchewan/Manitoba border. At the surface, the exiting cold front was over the Red River Valley, with dry and cool high pressure extending from Saskatchewan to eastern MT/WY and the western Dakotas. Temperatures in the high pressure area were mainly in the 40s with dewpoints in the 30s and 40s. Lingering showers continued along the cold front, but isolated showers lingered behind the front in the James Valley, likely due to mid level frontogenesis. The upper level low is forecast to move east along the Canadian border, reaching the Red River Valley this afternoon.
Onshore flow will increase by the weekend as a low pressure trough begins to expand across the West, pulling the clouds farther inland, and cooling desert areas this weekend.
Otherwise just cirrus expected today while an elevated nrly flow is anticipated with a tight gradient progged behind the low. No rain is forecast today!!! This morning low pressure is along the coast of the Florida Panhandle, and a trailing cold front stretches southwest off the coast of Louisiana. Aloft, an upper low is also moving along the northern gulf coast. After sunset with the lower dewpoints temps will drop off quickly and be around 5 degrees below normal by Thursday Morning.
743 AM EDT Wed Jun 7 2017 An upper level low will continue to hover around the region through Thursday as high pressure slowly builds south across the Great Lakes.
1000 AM EDT Wed Jun 7 2017 A weak trough will cross the area today and be accompanied by a few clouds.
944 AM CDT Wed Jun 7 2017 Upper level low is situated over northeast ND this morning. Cool advection in the wake of a eastward moving cold front is supporting a region of stratus moving south this morning. Currently, an upper level low was over the ND/Saskatchewan/Manitoba border. At the surface, the exiting cold front was over the Red River Valley, with dry and cool high pressure extending from Saskatchewan to eastern MT/WY and the western Dakotas. Temperatures in the high pressure area were mainly in the 40s with dewpoints in the 30s and 40s. Lingering showers continued along the cold front, but isolated showers lingered behind the front in the James Valley, likely due to mid level frontogenesis. The upper level low is forecast to move east along the Canadian border, reaching the Red River Valley this afternoon.
VFR conditions continue through the period as high pressure builds. Building high pressure ridge to the west and a deep trough to the east will maintain unseasonable northerly flow in the mid levels through the short term period. Could be a couple of degrees cooler tomorrow, but have gone on the warmer side of guidance.
Cold front with better upper support will push across the valley during the late morning and early afternoon. Still dealing with the weak cold frontal boundary moving through the FA.
The leading band appears to be the result of strong moisture convergence in the lower troposphere. Upstream bands appear to be benefiting from DCVA and steeper lapse rates, closer to the core of the mid/ upper level cyclone. Small Craft Advisories remain in effect for all coastal waters west of the Seven Mile Bridge.
High pressure will continue to build into the region behind a back door cool front. /Issued 300 AM CDT Wed Jun 7 2017/ Drier air is making its way southwestward into eastern Oklahoma and western Arkansas in the wake of the back door cold front. Temperatures today will be several degrees cooler than yesterday's, likely just below normal values. Highs tomorrow will be a degree or two warmer than todays, with winds beginning to shift to a southerly direction late in the day as high pressure pushes east.
715 AM EDT Wed Jun 7 2017 Aviation High pressure will bring fair weather through Thursday.
908 AM EDT Wed Jun 7 2017 Cool and showery weather under an upper level low through much of the week.
A lake breeze will keep temperatures cooler near Lake Michigan.
822 AM EDT Wed Jun 7 2017 A pesky upper level low pressure continues to provide cool weather with isolated showers.
A strong ridge in place across the southwest United States through Thursday will continue to bring above normal temperatures to the area.
614 AM CDT Wed Jun 7 2017 The synoptic pattern early this morning features an upper trough across the eastern Great Lakes and the Northeast, with a ridge extending throughout much of the central CONUS. Daytime highs will climb into the upper 70s and low 80s with dewpoints in the lower 50s.
Locally Heavy Rain Potential with a Marginal Risk for Severe Deep moisture from the Gulf of Mexico combined with the presence of a weak surface reflection over the panhandle and approaching mid-level trough will lead to high rain chances again today.
414 AM PDT Wed Jun 7 2017 High pressure will keep the dry and very warm weather in place again today, then a cooling trend will begin on Thursday as a low pressure system approaches the region. This will bring cooler than normal and breezy conditions for the weekend.
Northwesterly flow aloft continues this evening and overnight with a low pressure system and warm front offshore. The warm front strengthens Thursday as it moves across the forecast area. Freezing levels will be rising with the warm advection into Thursday night and most of the precipitation will be rain at this point.
805 PM EST Wed Jan 31 2018 A cold front will cross the Ohio Valley on Thursday.
554 PM EST Wed Jan 31 2018 High pressure off the Southeast Coast will dominate through Thursday.
525 PM CST Wed Jan 31 2018 WSW winds at KLBB and KVPW to decrease early evening then become NNE behind a cold front, although wind speeds should remain in check, at least through the night. /issued 319 PM CST Wed Jan 31 2018/ Dry and breezy westerly flow to the south of a cold front slowly advancing through the southern plains has resulted in near-record temperatures across our forecast area this afternoon.
The exception could be in the northeastern plains of the state where a surface cold front is expected to arrive, with low stratus clouds possibly accompanying. A backdoor cold front will drop into northeast New Mexico tonight and across the remainder of the eastern plains Thursday. High temperatures across the plains will range from 15 to 25 degrees cooler than today.
A cold front will move across the area overnight, with gusty northerly winds prevailing Thursday in the wake of the front. /Issued 247 PM CST Wed Jan 31 2018/ A cold front stretched from southeast KS into southwest OK this afternoon, with breezy and very mild conditions ahead of the front across our forecast area.
944 PM CST Wed Jan 31 2018 Wx map shows high pressure over the SE U. with low pressure over the N TX/W OK this evening. Amid this ongoing moisture/WAA regime, temperatures tonight are expected to be some 15 to 20 degrees warmer than last night. Peak in temperatures arrives tomorrow afternoon as highs are expected reach the lower 70s areawide ahead of the slowly approaching front. Quick shot of cooler air SUN night into MON, with temperatures rebounding MON night and TUE ahead of another front TUE night into WED. There will be an increasing risk for a relatively brief period of sea fog over the nearshore waters tomorrow afternoon and evening ahead of a cold front forecast to advance across the northwest Gulf Thursday night.
High pressure ridge over the area along with Mostly Clear skies will support seasonably cool temps tonight. Lows generally in the lower to middle 40s except for some mid/upper 30s across inland SE GA and the Suwannee River Valley. High pressure ridge shifts southward and further offshore on Thursday with a SW steering flow developing that will support a decent warm-up to slightly above normal temps with Highs in the upper 60s/lower 70s and increasing High Clouds through the day. With Ridge axis over the waters, expect mainly light/variable winds 5-10 knots.
Amid this ongoing moisture/WAA regime, temperatures tonight are expected to be some 15 to 20 degrees warmer than last night. Peak in temperatures arrives tomorrow afternoon as highs are expected reach the lower 70s areawide ahead of the slowly approaching front. Quick shot of cooler air SUN night into MON, with temperatures rebounding MON night and TUE ahead of another front TUE night into WED. There will be an increasing risk for a relatively brief period of sea fog over the nearshore waters tomorrow afternoon and evening ahead of a cold front forecast to advance across the northwest Gulf Thursday night.
614 PM CST Wed Jan 31 2018 Gusty south winds this aftn will only gradually decrease this eve to around 10 kts as pressure gradient invok approaching cold front remain in place. After 01/15z scattered decks with ocnl high mvfr to low ifr cigs until late aftn cold front results in quick wshft from nw-n.
535 PM CST Wed Jan 31 2018 Large upper low sits over Ontario with surface cold front just now starting to nudge into our far northwestern coverage area with a sharp temperature gradient noted behind it. Wind chill values approach advisory criteria near the Buffalo Ridge but after coordination with neighboring offices, will hold off on any headlines. High pressure will provide for dry conditions and sunshine.
613 PM EST Wed Jan 31 2018 A cold front will move through the Great Lakes region tonight into Thursday. With high pressure setting up to the southeast and an upper low in Canada, a warm advection pattern sets up across the region ahead of an approaching cold front for Thursday before midday. Today's mixing heights are relatively low and so as the low level jet leaves the region expect winds to die down. As the aforementioned cold front pushes into the region Thursday morning, there won't be much of a diurnal curve to this event, but rather more of a slowly falling temperature trend Thursday.
Northwest flow with embedded weak short waves will initiate isolated showers mainly over the higher elevations.
929 PM EST Wed Jan 31 2018 Low pressure will move from Ontario into Quebec late tonight and Thursday. The first of two cold front associated with the low will move across the region late tonight and early Thursday. A stronger cold front will move through Thursday afternoon dragging much colder air into the area.
538 PM CST Wed Jan 31 2018 Low pressure passing through Ontario Canada pulling an Arctic cold front southward into the region, currently extending from western Lake Superior through central MN/SD. Our area still in the warm sector of the low under mostly sunny skies. High pressure/Arctic air mass builds in on Thursday for mostly sunny but bitter cold conditions.
Cold front is moving through and is currently positioned from southwest Missouri across northeast Oklahoma and down through southwest Oklahoma into north-central Texas.
Chattanooga Airport, TN 37 55 30 40 / 10 70 70 0 Knoxville McGhee Tyson Airport, TN 36 52 27 36 / 10 80 90 0 Oak Ridge, TN 39 52 26 36 / 10 90 90 10 Tri Cities Airport, TN 28 51 25 32 / 10 90 90 10.
Gusty southwest winds will diminish quickly this evening ahead of a cold front that will move southward through the area late tonight/early Thursday morning. Near record highs today will be tempered somewhat by a cold front moving through tomorrow. Cooler air will be slow to move in, but quick to move out.
517 PM MST Wed Jan 31 2018 Updated forecast to allow the High Wind Warning to expire along the I-80 corridor from Elk Mountain to just west of Cheyenne. Winds have continued to subside this evening as a surface cold front has pushed south along the Laramie Range. Snow will taper off Thursday morning but some snow showers still continuing over the higher mtns through Thursday aided by orographics. Cold front slipping slowly westward late this afternoon and just passed Cheyenne with a temp drop from the upper 40s to near 30.
Surface winds will continue to be south at 5 to 10 knots overnight but then switch to the west and then north Thursday afternoon as a weak cold front moves through. A cold front will be pushing across central Texas overnight and expected to move across south central Texas midday on Thursday.
635 PM EST Wed Jan 31 2018 High pressure will linger over the region tonight, then move offshore early Thursday. A return SW flow will bring warmer weather on Thursday. A cold front will approach from the northwest Thursday evening, then cross the area Thursday night.
Timing of wind shift with cold front. A cold front that extended near a KSTL-KPNC-KAMA at 01/00z will continue to move southeast and should reach the Metroplex TAF sites around 15z and KACT around 18z. /Issued 314 PM CST Wed Jan 31 2018/ It has been a warm and breezy day, but winds will diminish this evening and temperatures will be a little cooler tomorrow behind a cold front that sweeps through most of the area during the morning hours. Behind the front, winds will become northerly and highs will only reach the lower 60s along the Red River to the lower 70s in the southern zones. Lows will drop below freezing in the northwestern zones but only reach the mid 40s across the south.
940 PM EST Wed Jan 31 2018 High pressure ridge centered off the SE seaboard continues to drift SE. Overnight temps in the low/mid 50s and a few degrees warmer at the coast.