Aikyam-Lab/Synoptic-Bench huggingface dataset:
A dry, warm airmass was in place across the central plains early this morning under the influence of upper ridging across the northern and central plains. Have followed closer to the rap for highs today with readings ranging from the mid/upper 60s in our northwest zones to the low/mid 70s in our southeast zones. Forecast soundings indicate post frontal mixing in our western counties near h85 with winds at the top of the layer around 20kts and cannot rule out a couple of hours with wind gusts near 20 mph or so and combined with low relative humidity values in the low 20th percentile, will mention near critical fire weather conditions in the HWO for locations west of a line from Elwood/Lexington to Ord. Saturday will be only slightly cooler than yesterday and today, but still very mild for this time of year.
Stacked high pressure will push eastward as a low pressure system moves across the northern Gulf coast. Deep layer ridging over the northeastern Gulf this morning will push eastward through the day as an upper level cut off low moves through the southern Plains and towards the lower Mississippi valley. As the upper level low moves closer, we'll also see an increase in upper level cloudiness in the afternoon.
/Issued 352 AM CST Fri Feb 17 2017/ Fairly quiet and mild weather expected today and Saturday as closed mid-level low over Permian Basin lifts northeast, allowing light winds and a mostly clear sky to prevail while brief ridging sets up tonight and Saturday.
920 AM EST Fri Feb 17 2017 A warm front will move north through the area today bringing well above normal temperatures to the region with record high temperatures possible heading into the weekend. Warm front just into SW OH. Tweaked temps down a couple of degrees in the east as temps currently in the lower to mid 20s and will take time for warm front to lift NE of area. Temperatures today will be on average 20 degrees warmer than yesterday.
1030 AM EST Fri Feb 17 2017 A ridge of high pressure will slide east across the commonwealth today. Morning clouds dissipating nicely as the ridge axis approaches and 5h heights continue to rise with the departing upper trof. Variable amounts of mid level clouds are all we expect in terms of sensible weather today as a dry warm front lifts across the area.
A strong area of low pressure moving through southern California will produce significant valley rain and mountain snow across the region Friday through Saturday.
Upper low was making its way northeast out of West Texas overnight. Local skies fairly clear save some cirrus that make its way west behind weak upper high to the northwest. Some mid and and high clouds should eventually reach mainly southeastern areas late today and tonight as the upper low takes a more easterly track. Low level temp trends for this afternoon show very similar temps, with again well above normal values with highs in the low to mid 70s anticipated and overnight lows close to normal highs for mid February. Upper level ridge will be in place on Saturday while low pressure deepens across the western high plains.
An upper level low will bring increasing mid cloud by this evening. /Issued 338 AM CST Fri Feb 17 2017/ Early morning water vapor imagery shows upper low now over central TX. Saturday may be a few degrees cooler depending on cloud cover.
High pressure will then provide mostly dry weather over the lower terrain through the end of the week with seasonable temperatures. Cooler, but drier weather is forecast through the weekend. The upper level trough axis crossing the region is sustaining showers south and east of PIT. Precipitation is expected to decrease as the day progresses while the trough shifts southeast. Upper level heights are progged to slightly rise given the development of the ridge across the central U.
1223 PM EST Wed Nov 9 2016 Cold front now through the area with gusty winds and increasing VFR ceilings expected through the afternoon.
High pressure at the surface coupled with dry northerly winds aloft and strong radiational cooling will help to drop temperatures into the middle 30's across much of the northern third of the area in TN and all of SW Virginia overnight tonight. Some localized areas of SW Virginia and the Smoky Mountains may see temperatures reach freezing, but expect it to be restricted to mountain valleys and other isolated low-lying areas. For tomorrow, expecting clear skies with winds decreasing as the surface pressure gradient relaxes with the high building across the area. Relief today from smoke plume induced poor air quality due to forest fires in the region, will again become a factor across southern portions of the area Thursday as the low level winds weaken and smoke can funnel southward in the East Tennessee Valley.
Drier air continues to advect into the area behind a cold front this afternoon.
1227 PM EST Wed Nov 9 2016 Cloud cover continues to decrease across the area as the cold front moves east and high pressure comes in. Temperatures will be dropping from the lower to middle 50s today to the 30s under mostly clear skies tonight.
1134 AM CST Wed Nov 9 2016 Cirrus spilling around the upper ridge centered to our west will be the extent of cloud cover we see as today continues what is perhaps the most remarkable aspect of this stretch of mild weather we have had to start November, the lack of cloud cover in what is typically one of our cloudiest months. At the surface, a ridge axis centered from Kansas to Lake Superior this morning will push down into the Ohio Valley tonight. The thermal ridge today will remain centered out in the Dakotas, but will start working into western MN, where highs in the upper 60s will again be likely downwind of the Buffalo Ridge.
343 PM EST Wed Nov 9 2016 High pressure will settle across the lower Mississippi and Tennessee river valleys tonight. The high will move toward the Gulf Coast on Thursday while a cold front approaches the region from the northwest.
316 PM EST Wed Nov 9 2016 A ridge of high pressure over the Ohio and mid Mississippi valleys will build northeast overnight into the north country, and will remain over the region through Thursday.
Temperatures will be a few degrees cooler today, although still much above normal.
222 PM EST Wed Nov 9 2016 Broken high clouds prevailed over the forecast area this afternoon with mild temperatures in the low 60s north to mid 70s central. especially the Rough Ridge Fire in western Fannin County. A large high pressure system over the mid MS river valley will continue to dominate the southeast U.
TFJ Unseasonably strong upper ridging will hold again today, with the ridge axis right overhead.
257 PM MST Wed Nov 9 2016 Another night clear skies and light drainage winds, as high pressure at the surface and aloft remain over the state. For tomorrow, a dry cold front is expected to move through late in the morning with northerly winds and then cooler temperatures. Mountain areas will remain under the influence of the light winds aloft associated with the upper ridge over the region. High temperatures are expected to be some 10 degrees cooler than today, but still 10 degrees or so warmer than normal.
1105 AM CST Wed Nov 9 2016 Latest 08z surface analysis shows high pressure over eastern Nebraska into central Minnesota. 00z GFS/NAM are in good agreement in building surface/upper level ridge axis into the Central Plains States today into tonight. as the models advect slightly warmer air into the forecast area. Southerly winds on backside of surface/upper level ridge will allow for warmer low temperatures tonight. 00z NAM is a couple of degrees celsius warmer at 925mb than the GFS/ECMWF.
Upper-level ridging will promote a tranquil weather pattern across the area through the period. A slight cooling trend can be expected thru the remainder of the period w/ a cold front on Thursday, but skies will remain clear and no precipitation is expected with continuing mild conditions.
136 PM CST Wed Nov 9 2016 GOES water vapor imagery/GFS 500mb height analysis has a huge/sprawling ridge of high pressure extending across the Interior West/through Canada and the western Great Lakes region. A mid-level trough/surface cold front drop through the region Thursday. this should warm surface temperatures into the lower/middle 60s before the front rolls through in the afternoon. High pressure builds toward the region Thursday night from southern Canada.
Overnight, global model guidance is still supporting a drying trend, bring dewpoints into the low to mid 50s.
1101 AM CST Wed Nov 9 2016 Dry high pressure is building into the region. /issued 227 AM CST Wed Nov 9 2016/ High pressure will settle into the Mid-South today.
425 PM EST Wed Nov 9 2016 Drier and cooler air will overspread the region tonight in the wake of a cold front.
250 PM CST Wed Nov 9 2016 High pressure over eastern Kansas/northwest Missouri will continue drifting southeast tonight. The ridge axis will slide over the eastern Ozarks during the pre-dawn hours of Thursday morning bringing calm wind and a clear sky resulting in excellent radiational cooling conditions. More widespread frost is likely over the eastern Ozarks where temperatures will be near freezing, so the frost advisory still looks good. High pressure will move south on Thursday across eastern Texas.
321 PM EST Wed Nov 9 2016 Model data strongly supports an atmosphere that will be predisposed to upper level ridging and blocking over much of North America through this weekend.
1226 PM EST Wed Nov 9 2016 A cold front will move through the region today bringing widespread showers that will diminish late this afternoon and evening. Cooler conditions are in store for the second half of the week and lasting into the upcoming weekend. A brief surge of cooler and drier air overnight tonight into Thursday should keep us dry and could be the start of a prolonged dry period.
High pressure sliding south and centering over the southern plains overnight will allow for temps to cool to around the freezing mark for some locations across far northeast Oklahoma and northwest Arkansas.
08 Northerly flow will take over behind the front tonight as the ridge settles in over the Southern States Thursday.
/issued 950 AM EST Wed Nov 9 2016/ Current water vapor and upper air analysis shows a strong ridge over the west, with a trough digging into the northeast and extending into the southeast. The pattern at the surface is a bit complex, with high pressure just to our northeast and an inverted trough over the northern Gulf of Mexico. For the rest of today, the trough over the northeast will amplify as the surface front lingers over the northern part of the peninsula. Rather light and variable winds are expected today across the waters, but then high pressure will build over the southeast and keep northeast winds in place through the end of the week.
1032 mb high pressure over central KS and ridging ne into central and eastern IA and nw IL will drift southeast into the mid MS river valley this evening. Cool high pressure building into Illinois will provide tranquil weather for the short term period. The high resolution guidance are showing winds remaining northerly through the morning, then shifting a bit more NW this afternoon. The cooler side of that range will be along the Indiana border, where the clouds will linger and the colder mid level air resides.
1257 PM EST Wed Nov 9 2016 Low pressure will form over the area this afternoon and push offshore this evening and depart tonight. High pressure is expected to move into our region from the west and southwest for Thursday.
Chattanooga Airport, TN 66 40 68 38 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 60 37 65 38 / 10 0 0 0 Oak Ridge, TN 61 37 66 38 / 0 0 0 0 Tri Cities Airport, TN 56 34 61 34 / 10 10 0 0.
A robust fall cold front has pushed across the Huntsville CWFA this morning, and now rests roughly south of the I-20 corridor. High pressure begins to settle in to our NW and winds should begin to relax throughout the evening.
Dry high pressure was moving into Mid TN with somewhat gusty north winds, up to 20 mph at times. High pressure moving overhead tonight will allow winds to drop off.
/issued 1101 AM CST Wed Nov 9 2016/ Dry high pressure is building into the region. /issued 227 AM CST Wed Nov 9 2016/ High pressure will settle into the Mid-South today.
Dry and stable conditions as warmer air works back in will sustain a clear sky across the lowest 10k ft tonight and Thursday. Winds diminish and back to westerly for a time tonight north of building high pressure, then settle to southwesterly for Thursday. Strong ridging will continue to dominate the weather pattern keeping the region above average for the better part of the forecast, but as we get deeper into fall the troughs dropping out of Canada will create larger swings in temperatures as cooler air is pulled down. In the wake of the passing cold front, northerly winds will keep the area cooler than we've had for a few days but it won't last long.
928 AM MST Wed Nov 9 2016 Amplified upper ridge in place over the central and northern Rockies today. Energy streaming into British Columbia will flatten the ridge and increase downslope flow, which will lead to unseasonably warm temperatures. Amplified ridge currently over the Northern Rockies with heights to 588dm will begin to flatten today as a weak wave slides across southern Canada. This will allow for increased mixing and downslope winds, with high temperatures topping out in the lower 70s today, much above normal for early November. A weak dry cold front will cross the region tonight allowing winds to turn out of the northwest and cooler temperatures to move into the area.
1207 PM CST Wed Nov 9 2016 259 AM CST A high pressure ridge just to our north shifts over the forecast area today. The high will settle over the southern U. Southwest winds increase as the pressure gradient tightens between the high and a low over Hudson Bay. Raised high temps into the low 60s.
102 PM EST Wed Nov 9 2016 High pressure centered to the west will keep dry weather over the region today through Thursday.
319 PM EST Wed Nov 9 2016 Model data strongly supports an atmosphere that will be predisposed to upper level ridging and blocking over much of North America through this weekend.
344 PM EST Wed Nov 9 2016 A ridge of high pressure over the Ohio and mid Mississippi valleys will build northeast overnight into the north country, and will remain over the region through Thursday.
246 PM EST Wed Nov 9 2016 High pressure building in tonight and through the day Thursday will keep weather conditions quiet across the region.
252 PM EST Wed Nov 9 2016 Drier and cooler air will overspread the region tonight in the wake of a cold front.
152 PM EST Wed Nov 9 2016 Weak cold front will continue to push through the region this afternoon, and light showers/sprinkles across northeast Florida will end by the evening. North to northwesterly winds behind the front will usher in much drier air as high pressure builds into the region, with dewpoints falling into the upper 30s across southeast Georgia and the 40s to low 50s across northeast Florida. High pressure will slowly weaken over the southern portion of the nation on Thursday as a strong cold front drops southward into the Plains states and the western Great Lakes. High pressure will build over the region, and the pressure gradient will weaken in the afternoon.
329 PM CST Wed Nov 9 2016 (Tonight and Thursday) Upper level low continues to slowly retrograde this afternoon, while a large area of light to moderate rainfall creeps across the I-10 corridor from Junction to Sonora. Temperatures are still in the mid and upper 50s this afternoon, and not likely to fall too much tonight given the low level moisture in place. Upper low still likely to be near El Paso for Thursday, with models still showing convection on the east side across the Permian Basin eastward into at least the Concho Valley and Edwards Plateau. Much like some of Central and North Central Texas that has seen a few breaks in the cloud cover and thus slightly warmer temperatures, we may be able to climb a few degrees across the area for Thursday.
308 PM EST Wed Nov 9 2016 A cold front will push south of the area tonight. High pressure will briefly slide across the region on Thursday.
especially the Rough Ridge Fire in western Fannin County. The first, a cold front, will impact the area early weekend as it pushes south out of the Tennessee and Ohio Valleys. Cool, dry high pressure will settle back over the region, and a marked drop in temperatures is expected through the weekend.
255 PM EST Wed Nov 9 2016 A cold front will move through the area this evening.
310 PM CST Wed Nov 9 2016 After a cool and frosty start this morning, temperatures have warmed nicely into the lower 60s this afternoon in most areas with full sunshine and a light southwest breeze. An upper level ridge will remain situated over the western United States acting to keep our area dry and warmer than normal. A cold front will slide southeast across the region that will turn the wind from southwesterly during the morning hours to northerly by later in the day.
101 PM EST Wed Nov 9 2016 A cold front will move through the region today bringing widespread showers that will diminish late this afternoon and evening. Cooler conditions are in store for the second half of the week and lasting into the upcoming weekend. Weak ridging at surface between the retreating low and the approaching cold front. No rain and a nice pre-cold frontal day. Canadian border will act to suppress persistent upper ridging of late and lead to general troffiness over the eastern third of the conus. Upper ridge may try to rebuild northward over the weekend.
As the day continues more locations to turn to the SW and efficiently mix the warmer air to the SFC. Models show 850mb temps rising to +16C to +18C across most of the FA today, which is similar to what they were late last week when record highs in the low 70s were set. Today we are starting out a little cooler, so a little hesitant about going any warmer than the mid 60s for highs.
107 PM EST Wed Nov 9 2016 Aviation High pressure building in today will scour out clouds and allow skies becoming mostly sunny during the afternoon hours. An advancing cold front will bring windy conditions on Thursday with mainly sunny skies.
A quiet and dry weather pattern will persist through the end of the week as upper level ridging spreads slowly eastward into the Central Plains while a closed off upper level low remains locked in across the Desert Southwest.
These showers will gradually slide off to the west as a cutoff mid-to- upper level low pressure system continues to retrograde to the west. A cut-off upper low will carve westward over Nrn Mexico/W TX today into Thursday while mid level overrunning continues over South Central TX. The rain chances pull westward with the upper low tonight into Thursday, but mid and high level clouds will continue to extend the overrunning pattern across all counties to keep humidities up and diurnal temperature ranges down.
1112 AM EST Wed Nov 9 2016 Little moisture is associated with a cold front that will cross the area this afternoon.
243 PM CST Wed Nov 9 2016 1030 mb high pressure over central KS and ridging northeast into northwest IL, will shift southeast into Texas, the mid MS and lower Ohio river valleys by dawn Thu. As high pressure settles southward into the Tennessee River Valley, southwesterly return flow will bring warmer conditions back to central Illinois on Thursday. The pressure gradient between the departing high and an approaching cold front will support wind gusts of 20-25mph during the afternoon. Thanks to the increasing southwesterly flow and abundant sunshine, high temperatures will climb into the lower to middle 60s.
High pressure will then provide mostly dry weather over the lower terrain through the end of the week with seasonable temperatures. Cooler, but drier weather is forecast through the weekend. The upper level trough axis crossing the region is sustaining showers south and east of PIT. Precipitation is expected to decrease as the day progresses while the trough shifts southeast. However, the cold pool aloft settling in behind the exiting system will keep overcast conditions and steady temperatures through the period with sprinkles early across the area as the low levels remain abundantly moist. Upper level heights are progged to slightly rise given the development of the ridge across the central U.
330 PM CST Wed Nov 9 2016 High pressure will settle in over the next few days. Temperatures will continue to be a little above normal, especially on the highs.
150 PM EST Wed Nov 9 2016 High pressure builds in for dry and warmer conditions Thursday.
321 PM CST Wed Nov 9 2016 The slow-moving cold front which pushed through North and Central Texas appears to have become stationary just south of the region. Meanwhile, an upper low over far West Texas will shift slowly west into Northern Mexico through the end of the work week. Precipitation will gradually diminish overnight as the low moves farther away, the front starts losing its identity and lift simply comes to an end.
A dissipating cold front will lift northeast of the forecast area by this afternoon with decreasing light precipitation. A weak upper ridge will build into the NW U.
A very weak front is dissipating as it moves into the upper level ridge but some high clouds linger over most TAF sites.
An upper level ridge axis will move directly over the western Dakotas. Compressional warming with a nearby front will combine with the ridge to yield highs in the upper 60s and lower 70s with some mid 70s in the southwest. A dry surface cold front will move quickly through the state Thursday morning. Breezy northwest winds will bring cooler, but still well above normal temperatures. then a cold front enters northwestern ND Wednesday night and sweeps southeastward across the state.
1240 PM EST Wed Nov 9 2016 Little moisture is associated with a cold front that will cross the area this afternoon.
Issued by National Weather Service Miami FL 1104 AM EST Wed Nov 9 2016 The cold front across the southeastern states continues to advance southeastward.
1137 AM CST Wed Nov 9 2016 The synoptic pattern early this morning features an amplified flow regime, with a ridge across the western CONUS and a trough in the east. Surface ridging will nose into much of the central and southern Plains today, keeping light northerly winds in place over eastern MO/western IL. Despite the expected abundant sunshine, these winds should keep the cooler airmass in place and highs confined to the upper 50s/low 60s. Have undercut guidance across southeastern MO into south-central IL given this regime, which puts lows in the low 30s, perhaps even upper 20s in some of the typically cooler spots. Further north, as the ridge axis settles to the south, return southwesterly flow (albeit light) will commence towards daybreak.
High pressure is expected to remain well south of the region tonight. Cold front moves into the area later in the day, with dry conditions. Highs on Thursday should reach into the lower to middle 60s, with sunshine and good mixing below shallow inversion.
356 PM EST Wed Nov 9 2016 A cold front will move through the region today bringing widespread showers that will diminish late this afternoon and evening. Cooler conditions are in store for the second half of the week and lasting into the upcoming weekend. Weak ridging at surface between the retreating low and the approaching cold front. No rain and a nice pre-cold frontal day. This will act to suppress the recent persistent upper ridging and lead to general troffiness over the eastern third of the conus. Upper ridge may try to rebuild northward over the weekend.
1113 AM CST Wed Nov 9 2016 High pressure is expected to remain well south of the region this afternoon and tonight. May see slightly warmer temperatures in spots. Cold front moves into the area later in the day, with dry conditions. Highs on Thursday should reach into the lower to middle 60s at least.
352 PM CST Wed Nov 9 2016 Drier conditions are on the way, as model guidance is in agreement with dewpoints falling this evening into the lower 50s, and possibly upper 40s in some locations.