Aikyam-Lab/Synoptic-Bench huggingface dataset:
436 PM EDT Thu Oct 12 2017 Building high pressure will suppress clouds and rain chances for the close of the week. The late afternoon update featured adjustments to already small precip chances and included some cosmetic drizzle and fog additions to the eastern ridges and portions of the I 80 corridor. Boundary layer downsloping with sufficient wind magnitude under the increased subsidence will end rain chances outside of the aforementioned drizzle areas, and further erode some of the low cloud cover as well.
138 PM EDT Thu Oct 12 2017 High pressure is bringing drier air into the area, with clouds gradually yielding to a mostly clear sky as we head into tonight.
Otherwise, high pressure in control yet again on Friday.
/issued 909 AM EDT Thu Oct 12 2017/ A deep inverted trough near Andros Island in the Bahamas early this morning eases westward to the Cal Sal Bank today. As the trough slowly approaches during the day some of the deeper moisture will reach the far southeast and southern counties. A high pressure ridge north of the state and low pressure. in the form of an inverted trough.
This due to the approach of a weak trough to the northwest Bahamas, waters to their west and Straits of Florida. A TUTT cell positioned over the northwest Bahamas this afternoon and a low level trough will move to the west tonight and tomorrow Friday over the Florida Keys and into the Gulf of Mexico. As the low level axis crosses the Keys tonight into tomorrow morning, winds will shift from the northeast to east and from southeast by tomorrow afternoon. As a trough moves over the Florida Keys tonight and into the Gulf by tomorrow, winds will decrease from east to west. Therefore, a Small Craft Advisory will remain in effect for most of the waters west of the Seven Mile Bridge through tonight and it will be reevaluated overnight.
By tomorrow, high pressure will be in full swing. As skies clear, fog may begin to form, however the extent will be limited once more, as southerly flow and an approaching cold front lead to an increase in clouds for the later half of the night. Lows tonight will be in the low to mid 50s, but southerly flow on Friday night will lead to more mild temperatures, with lows generally in the upper 50s to around 60.
319 PM EDT Thu Oct 12 2017 A weak low pressure system and attendant cold front will push south of the area this afternoon as high pressure builds across New England.
557 PM CDT Thu Oct 12 2017 CLear skies and pleasant temperatures are expected this evening and overnight as southerly winds continue to bring warmer and more moist air into the area.
Deep layer ridging will prevail aloft, with a quasi-stationary surface front on the edge of southeast Alabama and southwest Georgia (marked by the western edge of the afternoon CU field). However, convergence along the surface front will be favorable as easterly flow, from an area of low pressure in the Florida Straits and high pressure off the Mid- Atlantic coastline, opposes the front. This convergence combined with above average PWATs focused mainly in the lower troposphere will favor a scattering of showers and isolated thunderstorms over an area about 75mi on either side of a line from Panama City through Albany. High temperatures will be similar to yesterday, nearing the 90 degree mark with heat indices in the lower to middle 90s.
Skies will become partly sunny on Friday and it will be warmer with highs in the upper upper 60s to low 70s.
312 PM MDT Thu Oct 12 2017 An upper level low pressure trough will keep temperatures well below normal with unsettled conditions through Friday night.
113 PM EDT Thu Oct 12 2017 Light rain chances are expected today under weakening low pressure.
The cold front has shifted just east of a line from MBG to PIR. Breezy southerly winds continue across the eastern CWA as pressure gradient remains tight ahead of approaching cold front. For later today, the southerly winds will persist over the eastern CWA as the cold front approaches. Increased highs today a few degrees and sided on the higher end of guidance. Coolest readings will reside over the northwest CWA where cooler air will first arrive behind the passing cold front. This cool high pressure will keep temps on Friday in the upper 50s to low 60s.
For today, south winds are slowly bringing in additional low-level moisture as low to mid-level ridging occurs over the Sabine and Mississippi River Valleys.
1244 PM CDT Thu Oct 12 2017 Cold front has made it through most of central ND, and will move past the James River Valley in the next couple of hours. Otherwise, quiet weather continues as a cold front slowly makes its way trough western North Dakota. A cold front will move through today. Further west, temperatures will be cooler in the 50s.
A cold trough remains over the area today causing rain and snow showers to continue today. Tonight another wave of energy will invigorate the trough and eventually cause it to move off to the east.
1258 PM CDT Thu Oct 12 2017 Above normal temperatures will return to Kansas today as southerly winds increase and bring warmer air into the region. Meanwhile current early morning water vapor satellite imagery shows an upper level trough over the northwestern states, which move eastward for Friday into the weekend across the central plains.
145 PM EDT Thu Oct 12 2017 An approaching weak cold front will move through the forecast area today, stall and dissipate because of upper ridging. The ridge will dominate over the weekend.
Latest sat imagery shows the low level stratus which covers the north central and northwestern portions of the mid state, currently.
/EC/ Tonight through Friday: This afternoon through Friday: High pressure continues its hold over the region. With the anomalous high pressure still locked over the region, some daily record highs could be neared.
Isolated convection in the wake of a cold front continues to pop up along the foothills and Plains this afternoon. A strong low pressure system will move into the Rockies tomorrow bringing the next chance of rain and snow into the foothills and western mountains by afternoon.
Southwesterly flow aloft as well as a westward building ridge extending across the southern CONUS have been the driving forces behind the warmer temperatures, while an upper trough continues to linger across the Pacific Northwest and northern Rockies.
309 PM CDT Thu Oct 12 2017 Tonight through Friday: This afternoon through Friday: High pressure continues its hold over the region. With the anomalous high pressure still locked over the region, some daily record highs could be neared.
334 PM CDT Thu Oct 12 2017 The forecast area was under the influence of a southerly flow ahead of a cold front that was moving through the eastern Dakotas this afternoon. The cold front is progged to reach the western portion of the forecast area by midnight. The cold front will progress into the Arrowhead and northwest Wisconsin overnight. Showers or drizzle will still be found ahead of the trof over the Arrowhead and northwest Wisconsin, ending from West to East over northeast Minnesota. The cold front exits the Arrowhead in the morning, and the eastern Wisconsin portion of the forecast area by noon. The precipitation will end and high pressure will build across the region through the day. The airmass will be drier and cooler. Max temps will be a few degrees cooler than today.
246 PM EDT Thu Oct 12 2017 An approaching weak cold front will move through the forecast area today, stall and dissipate because of upper ridging. The ridge will dominate over the weekend.
The upper high currently centered over Louisiana will slowly shift eastward over the next couple of day with winds shifting more out of the south and southwest.
Very warm afternoon high temperatures will persist for the next several days as strong mid/upper level ridging remains in control.
306 PM EDT Thu Oct 12 2017 A stagnant low pressure system over eastern Ohio will produce scattered light showers through this evening, with only very light and spotty rainfall expected.
/10/ For the update, bumped up the high temps a couple of degrees for today. /10/ Prior discussion below: Our nice taste of fall will continue today as upper ridging remains in place over the region. Dry air will continue today and highs will be in the 80s with some some upper 70s still possible across the northern sections of the forecast area(generally along and north of the Highway 82 corridor). There could be some lower 60s in the Highway 84 corridor, but still pleasant overnight conditions. /28/ Quiet weather is expected across the forecast area through much of the period, as high pressure at both the surface and aloft prevail across the region.
Water Vapor imagery showing upper trough moving into Montana this afternoon. Upper energy that drops down on the backside of the upper trough rounds the base of the trough and moves in our direction later tonight.
345 PM CDT Thu Oct 12 2017 Latest sfc analysis shows high pressure centered over the Great Lakes ridging swwd through the forecast area, maintaining a light and variable flow. Water vapor imagery shows ridging aloft in place from nrn old Mexico across the Gulf Coast region to the wrn Atlantic. The forecast remains rain-free into the weekend as high pressure holds sfc/aloft, although increasing low-level moisture will lead to warmer/muggier conditions over the next couple of days. Sunrise temps Friday morning look to run just a tick warmer than this morning.
331 PM MDT Thu Oct 12 2017 A weak trough over eastern Montana/Wyoming will continue to move off to the east today. A cold front associated with this system will push through the area tonight. Expect overnight temperatures to be cooler tonight due the cold front passage. A strong southwesterly flow aloft will be over the region on Friday night, ahead of an upper level trough over central Idaho at that time.
All of the above is in response to Pacific Northwest troughing, and this will be the focus for the next few days.
Anglin High pressure ridging aloft will remain in place through this weekend.
Breezy SW flow at 15G25mph ahead of the front will push Max Temps into the lower to middle 90s along the I-95 corridor with Heat Indices around 105 degrees with Max Temps closer to 90 degrees over far inland areas where convection will start earlier. High pressure ridge will move to the Southeast through Saturday, as a cold front approaches from the North and this will continue Southwest winds of 10-15 knots nearshore and 15-20 knots offshore and will place SCEC headlines there.
Chattanooga Airport, TN 71 84 65 86 / 50 0 0 0 Knoxville McGhee Tyson Airport, TN 68 81 61 84 / 60 10 0 0 Oak Ridge, TN 68 80 62 84 / 60 0 0 0 Tri Cities Airport, TN 65 76 56 82 / 70 20 10 0.
Building high pressure will return dry and seasonable weather for the later half of Saturday through the start of the work week. Lingering deformation precipitation in the terrain should taper off toward midday as upper ridging starts to push over the area.
856 PM EDT Fri Jul 28 2017 Tonight through the weekend looks mostly rain free, as high pressure slowly builds down from Canada into the Great Lakes. Highs will be mostly in the low to mid 70s and be accompanied by fairly breezy northerly winds. Saturday night, high pressure builds in across the area with clearing skies and cool temperatures. Lows will be mainly in the low to mid 50s with even some upper 40s possible in the Catskills.
1009 PM CDT Fri Jul 28 2017 Not much change to the forecast this evening as the temperature and dewpoint trends look good with overnight lows in the low/mid- 70s interior to low-80s along the coast. A mid/upper level high pressure system currently drifting west across S TX is resulting in a hot and subsident airmass. Borderline Heat Advisory conditions are expected on Sat as the upper high continues to shift west across the area leading to highs being a degree or two hotter.
917 PM CDT Fri Jul 28 2017 Cold front remains located just n of the cntrl TN Valley this late Fri evening from ern KY SW into mid/wrn TN.
/issued 245 PM CDT Fri Jul 28 2017/ The upper level high will remain nearly squared over the region today and tomorrow. An increase in thunderstorm coverage could occur on Saturday despite the upper ridge still being in place. This upper ridge will amplify and become more expansive covering much of the western CONUS beginning late in the weekend. The center of the ridge will redevelop over the Great Basin at 500mb.
Strength and life span of the individual cells has been limited due to the low shear environment, with a lack of hail or strong wind reports as they passed through northeast Montana.
1032 PM EDT Fri Jul 28 2017 High pressure building into the region will dominate the North Country's weather through the weekend with dry weather and seasonably cool temperatures expected. The result will be mainly clear skies and slightly cooler than normal temperatures for late July.
Showers with a few embedded thunderstorms will continue to blossom across the area as a cold front moves through Middle Tennessee this afternoon and evening.
/issued 356 PM CDT Fri Jul 28 2017/ (Tonight and Saturday) The upper level ridge that has kept the area warm and rain-free the past few days has started to shift to the west/southwest today. The ridge axis currently extends from the Texas panhandle southeast into north Texas.
/issued 400 PM CDT Fri Jul 28 2017/ Digging ERN CONUS trof will aid in sending E-W oriented frontal boundary, near the Red River EWD into TN this afternoon, south and through the forecast area SAT afternoon/evening. Dry weather will continue into MON with the boundary remaining offshore, with at least small rain chances returning late MON into TUE as both GFS/ECMWF depict a weak impulse retrograding WWD TWD the NW Gulf from the weakening upper trof. Better rain chances return for the mid to late week period as the front and associated MSTR retreat north in tandem with a digging Central CONUS trof. 13 High pressure over the western Gulf of Mexico will maintain a light westerly flow through early Saturday.
Have not inserted mention of VCTS/VCSH elsewhere in the TAFs given the low confidence of this forecast, although elevated areas of -SHRA will be possible throughout the morning Saturday over portions of E TX/N LA before diminishing S of the I-20 terminals by 18Z. /issued 246 PM CDT Fri Jul 28 2017/ Cold front over nrn AR/OK continues to slowly drift swd this aftn. NW flow aloft and a cooler and drier airmass will send us back to temperatures more typical of late spring or early summer through midweek. As the upper ridge retreats well westward over NV, an upper level disturbance in the nw flow aloft will bring better coverage of convection for us in the latter half of the work week.
Scattered showers and thunderstorms continued this evening across Southeast Oklahoma in response to a cold front stretched across Southern Oklahoma into Northwest Arkansas and extended into Eastern Arkansas and Tennessee. the cooler and drier airmass also continued to lag behind and had finally pushed into Northeast Oklahoma with dewpoints back in the upper 60s as of 9pm. the cold front that has been very slow to move through the region is forecast to finally push south southeast of the CWA. Cloud cover looks to hold over parts of Southeast Oklahoma which will help keep temps in the low/mid 70s.
737 PM EDT Fri Jul 28 2017 With cold front now exiting south of Kentucky, have dropped the flash flood watch and removed thunder from the forecast. A cold front was bisecting the area from southwest to northeast late this afternoon. In general we remain under the influence of northwest flow and a fairly stagnant pattern through the period with a mean eastern CONUS trough and western ridge.
As of 20z, mid level ridge axis continue to retreat westward along the Continental Divide. Slowly progressing cold front was positioned along the Red River valley.
As of 18Z, the center of a compact upper low was located just east of Lansing.
(ISSUED 645 PM CDT Fri Jul 28 2017 ) A cold front will continue to move through central and southern Arkansas tonight.
VFR conditions are expected to prevail the next 24 hours as high pressure remains in control of the weather pattern. /issued 156 PM CDT Fri Jul 28 2017/ SHORT TERM (Now through Saturday Night): No significant changes to the short term forecast today as a strong H5 ridge remains perched over much of the Southern Plains. The high pressure system will continue to dominate the weather pattern across Deep South Texas and the RGV essentially shutting off any moisture source. Given the strength of the ridge, the 850mb temps, and dry atmosphere, triple digit heat will prevail from the I-69E/Hwy77 corridor and west toward Zapata.
1243 AM EDT Sat Jul 29 2017 A cold front will move offshore late Saturday.
625 PM CDT Fri Jul 28 2017 224 PM CDT Quiet/dry conditions, with clear to partly cloudy skies and below normal temps expected as high pressure continues to slowly build south across the region. Tighter gradient on the fringe of this high will allow a steady north northeast wind to persist, and support continued dangerous beach conditions through the period. Rodriguez 224 PM CDT High pressure will continue to slowly build across the region Saturday night. JEE 329 PM CDT High pressure to the north will continue to build south across the region throughout the weekend, with northerly winds persisting through this period.
The 500 mb high pressure ridge continued to nudge southeastward this evening. The current forecast is on track for overnight lows to be in the upper 70s over the inland areas and near 80 to the lower 80s along the immediate coast.
730 PM EDT Fri Jul 28 2017 High pressure building into the region will dominate the North Country's weather through the weekend with dry weather and seasonably cool temperatures expected. The result will be mainly clear skies and slightly cooler than normal temperatures for late July.
* None As of 18Z, the center of a compact upper low was located just east of Lansing.
655 PM CDT Fri Jul 28 2017 High pressure currently anchored over Lake Superior will build southward. Thanks to northeasterly winds around the high and a good amount of diurnal mixing, surface dewpoints have been slowly dropping today. 19z/2pm observations show dewpoints still in the lower to middle 70s south of I-70, but only in the middle 60s further north toward the I-74 corridor. as a western CONUS upper ridge/eastern CONUS upper trough pattern dominates.
Even with this difficultly, most models seem to agree that thunderstorm development today will coincide with the slow passage of the surface pressure trough. The associated wind shift will have nothing to do with a cold front. Upper ridging will remain firmly in place through the upcoming ween across the western U.
There were also isolated showers and thunderstorms in SE Oregon and the higher terrain of SW Idaho. Isolated showers and thunderstorms will return Saturday afternoon, once again mainly over the higher terrain. Isolated afternoon and evening thunderstorms, mainly over the higher terrain.
High pressure ridging aloft will remain in place through this weekend.
1157 PM EDT Fri Jul 28 2017 A dry front will slowly sag south into the Gulf of Maine tonight while high pressure builds in from the northwest. Low pressure moving across southern New England will pass south of the region. High pressure will continue to build across the region overnight. Lows across central and down east will range from the low to mid 50s. Across the coast, the cold front will slowly slide s into the Gulf of Maine this evening. This will continue to bring drier air and much cooler temps tonight. We could be seeing some sites across the far n and w drop back into the lower 40s.
645 PM CDT Fri Jul 28 2017 A cold front will continue to move through central and southern Arkansas tonight.
733 PM EDT Fri Jul 28 2017 Cold front is getting a strong southward push, and precip has almost completely exited central Kentucky. Maybe a few lingering showers near Bowling Green and near Lake Cumberland, but those are fading fast as cooler and drier air spills into the region. Lows tonight look to cool into the lower 60s across southern IN and the northern Bluegrass region with lower-mid 60s across central and southern KY. For Saturday/Saturday night, Canadian high pressure will build into the region ushering in much cooler and much less humid conditions. Under mostly sunny skies, highs on Saturday will range from the mid- upper 70s in southern IN/northern KY to the lower 80s south of the WK/BG Parkways.
922 PM EDT Fri Jul 28 2017 Upper-level low pressure system will intensify as it moves over the Mid Atlantic tonight.
805 PM EDT Fri Jul 28 2017 Tonight through the weekend looks mostly rain free, as high pressure slowly builds down from Canada into the Great Lakes. Highs will be mostly in the low to mid 70s and be accompanied by fairly breezy northerly winds. Saturday night, high pressure builds in across the area with clearing skies and cool temperatures. Lows will be mainly in the low to mid 50s with even some upper 40s possible in the Catskills.
A weak cold front will move south across the area Saturday into Saturday evening with scattered to numerous showers and thunderstorms forecast.
1218 AM CDT Tue Aug 22 2017 A cold front will move through the DHT and GUY TAF sites around sunrise and then it should move through the AMA TAF site around mid day. Meanwhile, ongoing activity across southeastern Colorado and northeastern New Mexico, coupled with an approaching cold front, may cause activity to redevelop early Tuesday morning. For the 00Z TAFs, there will be a renewed threat of showers and tstms during this TAF cycle as a cold front moves south across the OK and TX Panhandles Tuesday morning.
338 AM CDT Tue Aug 22 2017 Region will be in cyclonic flow aloft, with surface ridging propagating in from the west as the upper low propagates eastward today. The Baudette area (and adjacent portions of NW MN) will be close enough to the upper low for clouds and isolated showers.
353 AM MDT Tue Aug 22 2017 High pressure remained overhead early this morning while low pressure continued to circulate over southern California early this morning. Meanwhile, to the south residual moisture is expected to fuel another round of diurnally driven showers and thunderstorms, mainly over the higher terrain. High temperatures will be cooler today in response to increased cloud cover and showers/thunderstorms, most noticeably across the south.
450 AM EDT Tue Aug 22 2017 An upper-level composite analysis this morning revealed a deep layer mean anticyclone centered over the western North Atlantic near 30N/72W. A ridge extended westward over most of the Deep South. A deep, but rather weak easterly current prevailed across the Florida Keys and adjacent coastal waters, with a weak low- level trough over the northern Bahamas approaching South Florida.
Later this afternoon, a cold front will enter Oklahoma, bringing north winds and a chance for storms. A cold front is set to enter Oklahoma this afternoon, bringing cooler temperatures and a round of showers and thunderstorms.
Today through Wednesday Upper level low is spinning off of the California coast and a frontal boundary is moving up from the south, drawing some fairly good moisture up with it.
118 AM EDT Tue Aug 22 2017 High pressure centered off the coast will cause increased moisture in a southeast to south flow. However, the moisture will remain shallow because of upper ridging and limit thunderstorm coverage. The thunderstorm chance will increase Wednesday with developing upper troughing and ahead of an associated cold front.
An upper level trough is currently moving through the Northern Plains. This trough is expected to continue to deepen and close off today which will push the surface front through the area this afternoon. A cooler and drier air mass will then move in with the frontal passage dropping lows tonight into the upper 50s over most locations. As an upper level ridge develops over the intermountain west.
333 AM PDT Tue Aug 22 2017 An area of low pressure will remain anchored off the southern California coast through Wednesday to continue the chance of mainly afternoon showers and thunderstorms over the Sierra each day.