Aikyam-Lab/Synoptic-Bench huggingface dataset:
1250 PM EST Fri Nov 25 2016 Easterly flow will continue through the day as high pressure remains in control over the area. /issued 654 AM EST Fri Nov 25 2016/ Weak high pressure to the northeast, will keep a generally easterly flow across South Florida through the TAF period. This low level easterly flow pattern will persist through the rest of today, as high pressure riding slides by to the north. In general, temperatures across the region will max out in the lower 80s, around between 2-4 degrees above normal for this time of year.
324 PM CST Fri Nov 25 2016 Clearing line currently over central Missouri will continue to move from west to east across the area late this afternoon and this evening as a low level ridge moves into the area per the latest runs of the the RAP. Britt (Saturday Night) A moderation in temperatures is expected on Saturday night due to continued southerly return flow around broad anticyclone near the Tennessee Valley. some favored valleys that typically decouple easier will still approach the freezing mark.
Tonight Through Saturday High pressure will be over western and central Wyoming tonight with some high clouds. Saturday morning southwest flow aloft will move in ahead of a Pacific low pressure trough with windy conditions forming along and near the east slopes of the mountains and through the wind corridor across Sweetwater. Saturday Night Through Friday As the Pacific low pressure trough deepens and shifts east towards Wyoming, clouds will begin to move northeast into southwest Wyoming Saturday evening moving up from the Great Basin.
Drier air wedging in from the north behind the weak cold front and expect CIGS to rise with VFR overnight.
Upstream, high pressure is across the Central Plains and an upper trough is moving into the Pacific Northwest. This system will continue to move south and east while high pressure over the plains builds into the northern gulf coast.
1205 PM MST Fri Nov 25 2016 Longwave upper ridging moves over the area tonight then starts to back to the southwest Saturday ahead of a low pressure system moving ashore along the west coast. High temperatures Saturday about 4F to 7F warmer per 850mb temperatures with upper 50s to low 60s.
941 AM MST Fri Nov 25 2016 Weak low amplitude ridging will build today over eastern Utah and western Colorado as flow becomes southerly to southwesterly.
1246 PM EST Fri Nov 25 2016 Aviation One area of low pressure over the Great Lake Region will weaken as it drifts east today.
Maliawco Upper ridge building toward the northern plains with dry and mild weather expected over eastern Montana through the weekend. High clouds will be increasing as the ridge axis moves east and downslope mixing winds should allow for good temperature recovery.
was to begin the day with lower temperatures in the high mtn valleys. It should only be little warmer than what we are seeing this morning. the upper ridge axis will shift to the east with an increasing southwesterly flow aloft developing. A surface lee trough develops during the day which should help enhance the low level downslope warming.
a chunk of pacific high pressure across the Cntl Rockies moves into the midsouth as low pressure circulates into Cntl Canada. A thermal ridge will strengthen across the Cntl Plains and a mixed layer across ncntl Neb is pointing toward the warmer lows near 30. Strong upper level ridging builds across the central Plains on Saturday. This ridge will result in dry conditions across central Nebraska through much of the weekend with high temperatures warming up into the low 60s on Saturday.
and Saturday A weak upper trough will produce some light precipitation as it moves across the region today.
A ridge builds across the region bringing dry air to the forecast area. Models suggest temperatures in the low teens but current thinking is a similar pattern to last night's with lows in the upper teens and 20s. Highs on Saturday will be well above normal with highs in the low 60s, which is 15 to 20 degrees above normal. Upper level ridging will remain in place Saturday night with dry conditions. During this time an amplified upper level trough will dig across California into the Four Corners Region.
Lows will primarily be in the lower to middle 30s.
1242 PM EST Fri Nov 25 2016 Weak high pressure will affect the area today through much of the upcoming weekend. Low pressure will deepen off the coast tonight and move towards southeast Canada Saturday.
The area is in a post frontal zone with northwest winds expected for most of today, but turning more southerly in the afternoon as high pressure becomes centered across the southern High Plains. Temperatures at freezing or colder are expected for lows by Saturday morning.
Tonight and Saturday A mid level trough was helping to produce light precipitation today as it made its way across Wisconsin.
Coastal low pressure develops to the south tonight and passes well southeast of Cape Cod on Saturday.
The cold front is located just to the south and east of the area. Chattanooga Airport, TN 63 37 60 32 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 59 35 55 28 / 0 0 0 0 Oak Ridge, TN 60 35 56 28 / 0 0 0 0 Tri Cities Airport, TN 58 33 50 24 / 10 10 0 0.
This expected cloud cover will likely keep temperatures a little warmer tonight. Short wave ridging and thicknesses will be on the increase on Saturday leading to slightly warmer temperatures. A sharp upper level trough will move onshore on the west coast spawning weak lee surface cyclogenesis in eastern Colorado. Weak lee pressure troughing will develop as well boosting winds into the low end breezy category.
Dry weather will continue with warmer daytime temperatures today and Saturday.
Highs this afternoon will top out in the low to mid 70s.
302 PM EST Fri Nov 25 2016 Currently - High pressure off the Carolina Coast is gradually weakening and stretching out eastward. Stable conditions prevail with deep layered ridging holding ample warm and dry air above a somewhat elevated subsidence inversion. Temperatures are in the lower 80s with dew points in the mid 60s. The veering flow will bring in increasingly warmer and more moist conditions and well above normal temperatures are expected before mid week. Rain chances will remain slight as deep layered ridging will remain in place and convective forcing will be mesoscale maritime in nature. High pressure off the Carolina Coast will continue to stretch out eastwards and weaken.
High pressure will gradually build into the region tonight.
Strong 500 hPa ridging aloft and 925 hPa temperatures rising to between +4 and +5 Celsius will result in very warm temperatures this weekend with daily highs into the 40s.
Warmer and breezy for Saturday as the lee trough strengthens in response to a deepening western CONUS trough. Afternoon highs should reach the low 60s.
06Z surface data has as weak trof moving through Minnesota and Wisconsin with high pressure over the Plains. Some extremely weak returns associated with the upper level disturbance moving into Wisconsin might produce a sprinkle or flurry in the highway 20 corridor. Tonight, quiet and dry conditions will be seen across the area as high pressure moves into the Ohio Valley.
352 PM CST Fri Nov 25 2016 Visible satellite clearly shows cold front draped across the northern Gulf of Mexico, approximately 40 miles south of Pilottown. This movement is likely in response to the next upper level trough now moving across the Mississippi River Valley today. Weak upper ridge sliding across stands no chance to warm the area.
High pressure will drift from southeast Kansas to east Tennessee during the short term keeping our weather quiet and temperatures cool.
1219 PM EST Fri Nov 25 2016 Latest satellite imagery and obs upstream do show some holes in the low stratus canopy over eastern Missouri, so we have some reason to see some holes in the clouds this afternoon. Lows should be near freezing.
Low temperatures tonight will dip into the lower 30s.
A mid and upper level ridge centered over Cuba sprawls across FL and much of the Gulf of Mexico. A cold front is well to the northwest. High pressure northeast of the waters will provide northeast or east winds at 15 knots or less today.
246 PM MST Fri Nov 25 2016 A ridge of high pressure over the Rockies will hold on for another 24 hours then exit to the east late Saturday and not return for the foreseeable future. Southwest flow aloft increases Saturday night in advance of a sharp upper level trough moving from Southern California to the Four Corners.
The cloud forecast will play right into the low temp forecast.
1025 AM MST Fri Nov 25 2016 Pretty quiet weather pattern through the first half of the weekend with upper level ridging across the region. Temps will warm into the low-to-mid 50s across the plains by this aftn. Soundings through Saturday show a very dry airmass in the low and midlevels, so went trended dewpoints toward the drier CONSMOS guidance.
High pressure over the region with light winds is giving the area current temps ranging mainly in the 20s at this time. model consistency continues to give the region a dry 48-hour period as H5/H7 ridging moves eastward across the Plains region. but above normal highs around 60F today and the lower 60s on Saturday. Only concerns for the region for this timeframe will be the low RH readings below 20 percent for western portions of the CWA in terms of elevated fire wx concerns.
As the axis of the ridge moves eastward through the evening and overnight hours winds will respond out of the south.
Low clouds will continue to erode along the Highway 82 corridor over the next couple of hours, with VFR categories anticipated to prevail at all sites heading into the afternoon. This evening, a cold front will also shift southeast through the area. Otherwise for today, a subtle disturbance aloft will swing east and through the Lower Mississippi River Valley today. This in turn will push a weakening cold front through the forecast area.
241 PM CST Fri Nov 25 2016 Mostly clear skies expected tonight as drier and cooler air works into the area behind an exiting short wave trof.
335 PM CST Fri Nov 25 2016 The 500mb ridge will continue to build across the Northern and Central Plains States through Saturday. Warmed temperatures slightly Saturday, 1-4F warmer than what occurred today.
1237 PM EST Fri Nov 25 2016 Lots of clouds with possibly very light rain or drizzle behind cold front now off to our east.
A very weak system/dry cold frontal boundary will continue to push eastward through the region this morning. Temperatures will be just a few degrees cooler today across the area as a very slightly cooler air mass advects into the region. Some localized areas of fog may be possible, especially closer to the larger lakes bodies where water temperatures are still in the lower 60s.
1025 AM MST Fri Nov 25 2016 Current surface map places trof across Montana into Wyoming. Water vapor shows upper level ridge building across the northern plains. With upper level ridge across the area today and Saturday, it will be dry and warm.
Upper level ridge over eastern MT will move over the area tonight.
249 PM MST Fri Nov 25 2016 Longwave upper ridging moves over the area tonight then starts to back to the southwest Saturday ahead of a low pressure system moving ashore along the west coast. High temperatures Saturday about 4F to 7F warmer per 850mb temperatures with upper 50s to low 60s.
High pressure will then build in over night behind the departing system. Clouds should eventually decrease some tomorrow from southwest to northeast as warmer air aloft advects in.
Weakening cold front, which has been slowing its roll most of the afternoon, is now just south of Pleasanton and extends east towards Victoria and west towards Del Rio. For Saturday, ridging aloft and at the surface should preclude much in the way of rain chances though we will continue to be mostly cloudy with cooler convective temperatures as low-level moisture remains on the moister side.
Warmer than normal temperatures will be in store for Kansas this weekend as upper level ridging develops over the central plains.
Though it appears more midlevel vorticity looks to stream through into tomorrow, the boundaries appear to wash out with north/northeast flow and ridging at 700/850 mb that should - keyword should - choke off precip.
Current water vapor imagery and RAP upper air analysis indicates an upper level trough moving across the Upper Midwest southeastward into the Ohio River Valley. At the surface, the cold front is now to the south and east of the area stretching southward across the Carolinas into the northern Gulf of Mexico. For tonight, the upper level trough will swing through the Southern Appalachians but the atmosphere will be too dry for precipitation.
129 PM CST Fri Nov 25 2016 In the upper levels have ridge to the east with a trough well to the west. The upper trough will move ashore the West Coast on Saturday and quickly progress eastward.
Otherwise, a weak cold front will finish crossing the region today, and will be followed by a large area of high pressure from the Plains. The high will begin exiting to the east as the period ends.
Scattered showers have developed out ahead of a weak cold front moving into the Florida Panhandle and SE AL.
1112 AM CST Fri Nov 25 2016 Last night at this time, the low cloud deck, as seen by 11-3. But with the back edge of the low cloud field seen by that same 11-3. If it occurs later, and it might, it should eventually happen overnight, as the upper trof of energy is swept across the Commonwealth/mid Ohio river valley by 06Z Saturday.
High pressure aloft will shift east away from Utah today, followed by an increasingly strong, warm and dry southerly flow through Saturday.
Have updated the suite of forecast products for this morning to emphasize the potential, as short range models not showing upper level troughing moving east of mid state region until later this evening, that cloudy skies should persist across the area thru the afternoon hrs. Accordingly, have also lowered afternoon high temperatures by a few degrees across our entire mid state as cloud coverage should keep temps cooler than previously forecasted values.
400 PM EST Fri Nov 25 2016 A weakening cold front will cross the commonwealth later today and tonight.
422 PM EST Fri Nov 25 2016 A weakening cold front will cross the commonwealth later today and tonight.
A cold front will push through the area throughout the course of the day leading to sfc winds veering to the north at 3-5 kts. Computer models hint at a stratus deck and/or fog developing overnight, but current thinking is that the VFR cloud cover and slightly drier air ushered in by the cold front could mitigate this potential. /issued 449 AM CST Fri Nov 25 2016/ Cold front associated with a weak upper trof moving across the central CONUS just to the n and w of our region this morning. Front will continue to sink swd today as the trof moves ewd. Cold front will bring a shot of cooler/drier air to the region that will keep us near seasonal normals for Saturday.
Clouds will be slow to clear on Saturday as high pressure builds in from the west.
Expect mid/high level clouds to move through the region, with mainly just the highest mountain peaks obscured at times.
1253 PM EST Fri Nov 25 2016 Lots of clouds with possibly very light rain or drizzle behind cold front now off to our east.
With plenty of cloud cover and a continued chance of showers, overnight temperatures will be warmer than normal, with mid 40s expected over the area. Afternoon highs tomorrow will be a little cooler than normal with highs in the lower 60s.
Weak frontal boundary/trough tracking through the region now with sunshine returning to the western areas at this time. Otherwise warm air advection and much warmer conditions can be expected for the afternoon hours.
With low level surface flow out of the southeast, could see fog spread as far west as the Buffalo Ridge, but cams keep it east of there for now. Very light southerly flow will begin to respond at the surface as low pressure begins to deepen to the southwest.
344 PM CST Fri Nov 25 2016 High pressure at the surface will continue to build across the area tonight, setting the stage for ideal radiational cooling conditions in many locations. Last several runs of operational and experimental HRRR continue to support this, with legitimate threat of freezing fog across northeast OK/northwest AR. Will thus go with a freezing fog advisory from about i-40 north 06z-15z.
An upper level ridge building across the northern plains will maintain mild and dry weather conditions across the forecast area for the remainder of the weekend.
Temperatures will be cooler (near normal for late November) behind a cold front that has moved through the area. Model guidance shows a fairly swift southern stream jet phasing with northern stream trough and accelerating eastward toward our area this weekend.
Occasional light snow or rain showers still possible in south to southwest flow as the ridge slides into the Atlantic. still expect plenty of clouds and there will be another upper level trough approaching the region late tonight and especially on Saturday. Short term picks up with highly amplified mid-tropospheric flow with trough over the eastern US and ridge over the central CONUS.
I increased sky cover in southeast Washington for today and increased maximum temperatures for today by 2-3 degrees in the Lower Columbia Basin and along the foothills of the Blue Mountains.
235 PM MST Fri Nov 25 2016 Upper level ridge was over Wyoming and northern Colorado while a weak upper level trough was over southern Colorado and New Mexico. Both ridge and trough will shift east of Colorado on Saturday allowing a somewhat stronger high pressure ridge to build in from Utah.
The cold front is now to the south and east of the terminals.
If clouds break up faster than expected, temperatures will be much higher, especially in western Minnesota where current forecast highs are in the lower 40s. Saturday features mid/upper ridging with above normal highs in the upper 30s to upper 40s.
The advection of drier and cooler air via stronger northerly flow will allow temperatures to drop in the mid 30s in most locations.
1131 AM CST Fri Nov 25 2016 /18Z TAFS/ Low clouds and scattered to isolated showers have diminished in the wake of a cold front that moved through the area last night. /issued 346 AM CST Fri Nov 25 2016/ (Today and Tonight) A cold front is currently making its way through the area early this morning, and has just passed though the San Angelo area. With lots of cloud cover and possibly scattered showers behind the cold front today, temperatures will be cooler with highs only reaching the upper 50s to lower 60s. Tonight, those same clouds will keep temperatures from dropping off too much, keeping lows in the low to mid 40s for the most part.
229 PM CST Fri Nov 25 2016 Quiet weather will continue for the part of the short term with upper ridging across the Plains, in advance of the next trough that is just beginning to move onshore on the west coast.
Surface analysis has a high pressure to the southeast of the area and winds are from the southwest. An upper level ridge will move across the area tonight and Saturday. There is warm advection across the area through the night and into Saturday which will allow for warmer temperatures. Saturday night will still be mild as the upper ridge moves to the east and an upper wave moves into the area toward morning.
Temps remain well above freezing so not expecting any ice accumulation either. Also lowered temps slightly today as cloud cover will likely result in cooler high temps than previously expected. Low temps will be at or below freezing as the upper level trough axis rotates overhead. Temps could be warmer than forecast if cloud cover does not scatter out. JEE 250 AM CST High pressure spreads over the region Saturday leading to a drier and warmer weekend.
144 PM MST Fri Nov 25 2016 Water vapor shows upper ridge building through the nrn Rockies into the nrn plains. Near the sfc, southwest bl flow bringing warmer air back into the region. Even warmer temps expected on Saturday with thermal ridge passing overhead, allowing temps to rise well into the 50s and even some lower 60s south/east of the Blkhls.
/Issued 307 AM EST Fri Nov 25 2016/ A zonal west-to-east upper level flow exists across the state of Georgia this morning with a weak 850mb trough just west over Alabama. Low lvl trough/weak cold front will cross the forecast area today with drier air moving in from the northwest. Upr (500mb) trough moves through tonight reinforcing northerly flow that could result in some gusty winds (15-25mph) overnight, especially over the higher terrain of north GA. Cooler/drier air will invade late tonight into Saturday with temps expected to be about 5-10F degrees cooler than today (both lows and highs).
As a result, south winds will keep temperatures a little warmer tonight in the upper 20s to lower 30s. Highs Saturday should be in the lower to middle 60s.
while either side of the band is about 15 degrees warmer.
/Issued 519 AM CST Fri Nov 25 2016/ Rather uneventful weather is expected across the TX and OK Panhandles through Saturday as an upper level ridge of high pressure dominates the region.
A drier airmass will overspread the region in the wake of a weak cold front overnight. Low amplitude ridging aloft will be replaced by troughing as a southern stream wave merges in with a northern stream trough, amplifying it over the eastern CONUS.
Highs have reached into the low/middle 50s across the forecast area. Still anticipate lows will drop into the 30s, and may stay a few degrees warmer out west where southerly winds develop later tonight. Highs tomorrow mix into the lower 60s with southwest winds increasing to 10-15mph by the mid afternoon hours. As upper ridge moves east Saturday night and upper trough crosses the SW U.
This will continue to bring dry conditions and gusty west winds to the higher terrain. A lee side trough will set-up helping to produce some downsloping during the day.
619 AM EDT TUE JUL 12 2016 High pressure over the Mid Atlantic coast will continue to move east away from the area. A warm front will lift northeast across the area today.
326 AM EDT TUE JUL 12 2016 Warmer and more humid weather this week with increasing showers and thunderstorms. Cold front crosses late in the week.
Higher resolution guidance is showing a stronger signal associated with axis of isentropic ascent as warm front lifts north tonight.
Clear skies across interior NorCal early this morning with high pressure overhead. Temperatures continue to run a little warmer across most of the region and generally range from the mid to upper 30s in the colder mountain valleys to the 60s and lower 70s in the valley. A subtle trough passes to the north today and may briefly halt the warming trend as the marine layer deepens a bit and onshore flow increases through the Delta.
The proximity of the lower through mid level ridge will help to discourage shower outbreaks. Winds will tip upwards a bit towards weeks end as the ridge to our north nudges slightly northward bringing slightly stronger easterlies across the local area. Meanwhile, the mid through upper level ridge will also lift northward.
334 AM MDT TUE JUL 12 2016 Little change from day to day as broad high pressure remains to our south and pieces of energy bring some precipitation to the northern Rockies.
/issued 312 AM CDT TUE JUL 12 2016/ Ridge ridge ridge. Upper ridge stretching from the Pacific to the Atlantic will remain entrenched over the region.
653 AM EDT TUE JUL 12 2016 Strong mid level stability as upper ridging slowly exits the region will sustain favorable aviation conditions under a mainly clear sky today. * NONE Hot and humid airmass awaiting immediately upstream is poised to spread into Southeast Michigan beginning today as deep layer flow turns southwesterly in the wake of the departing ridge that is presently overhead. The column will undergo both warming and moistening during the day yielding high temperatures in the low 90s and apparent Ts in the mid 90s. The highlight will instead be very warm and muggy overnight conditions characterized by lows in the low/mid 70s and dewpoints near 70.