Aikyam-Lab/Synoptic-Bench huggingface dataset:
Progressive U/L pattern in place across the CONUS with a strong U/L low closing off over northern New England with the trough axis moving over the western Atlantic. Next U/L disturbance will dig through the inter-mountain west tonight and Monday which will induce broad downstream ridging from the Gulf of Mexico through the Plains. At the surface, high pressure over the Tennessee valley will continue northerly flow down the peninsula tonight which is ideal for cold air drainage. and morning low temperatures across interior Levy county will drop to around freezing. Temperatures will begin a slow recovery on Monday as the U/L ridge edges eastward with high temperatures in the upper 60s north and central to the mid 70s south.
1102 AM CST Sun Nov 20 2016 High pressure will shift east this afternoon. Today Through Monday Night An upper ridge will be over the Plains through Monday. An upper trough will move into the western U. Northwest flow will be over Arkansas today and Monday then will become southwest Monday night as the upper trough approaches. A warm front will approach the state Monday night.
354 PM EST Sun Nov 20 2016 High pressure builds into the region into Monday.
1246 PM EST Sun Nov 20 2016 With a very dry air mass behind this mornings cold front, VFR is forecast for the entire TAF period. Otherwise, a very dry air mass is moving into the area today, behind a cold front, currently over the northern portion of the CWA. It is uncertain how far south the lower dew points will be able to penetrate. Cold front knocking at South Florida's door this morning. Monday will see the wind die down a bit and high pressure regain its hold over the area.
241 PM EST Sun Nov 20 2016 Cool and dry high pressure continues to build into the Ohio Valley today, with temps really struggling in the face of the low-level thermal trof. North-south oriented ridge will settle roughly overhead tonight, and winds should drop off for favorable radiational cooling conditions. Expect min temps a few degrees cooler than this morning, with more of a ridge/valley spread. Below normal temps will continue on Monday, but should still be about 5 degrees warmer than this afternoon. Progressive pattern will prevail for most of the week, keeping temps just barely on the low side of climo.
The upper ridge in place today will shift east tonight as narrow trough positioned off the West Coast begins its move onshore. A weak frontal boundary may initiate a few light showers or sprinkles, but mostly dry is expect as the trough splits around our region. The main effect from the trough moving across the area will be increased clouds and surface wind shifting to the northwest. Monday night the cooler air brought in from the north along clearing skies and lowering heights will drop lows into the 20s.
Will go with slightly better chances for areas east of the KS Turnpike, where some model solutions suggest the low level moisture will have the best chance to return. Not expecting much of a cool down on the backside of the Tue system, with cooler air with the cold front actually pushing temps back towards climo normals for Wed.
255 PM CST Sun Nov 20 2016 Low level warm air advection will increase across the region through Monday night ahead of a developing low pressure system currently off the West Coast. The increase in low level moisture will result in a much warmer night tonight with overnight lows generally in the 40s.
Mostly clear skies will continue tonight and tomorrow with an upper level ridge moving across the Central Plains region.
1233 PM EST Sun Nov 20 2016 High pressure builds into the region into Monday.
308 PM CST Sun Nov 20 2016 Post frontal air mass is still moving into the region with high pressure extending from Canada to the Gulf of Mexico.
/Today/ A strong cold front is nearly through the forecast area and will be East of the area by 12Z. Aloft we will have a trough of low pressure pass across us today. We have a narrow window where we saturate deep enough and have some forcing to produce some showers as the upper trough enters.
/issued 343 AM EDT Wed Oct 12 2016/ Weather pattern remains similar to previous days for the short term period as high pressure remains in control along the east coast. This high pressure will keep a steady northeast flow through the end of the week advecting Atlantic moisture into S Florida.
230 PM EDT Wed Oct 12 2016 High pressure with dry weather through today. A cold front crosses Thursday.
1137 AM MDT Wed Oct 12 2016 The upper level trough and cool front have pushed through to the front range this morning though some light showers continue over the highest terrain.
535 PM EDT Wed Oct 12 2016 A cold front will cross the area by Thursday morning. Shower chances will increase after midnight as the upper trough over the northern Great Lakes swings a cold front toward the region. Front will continue to make progress across the upper Ohio Valley early, followed quickly by building high pressure. With northwest flow and moisture lingering in the high terrain, have kept chance PoPs in the forecast through Thursday afternoon.
644 PM EDT Wed Oct 12 2016 High pressure will continue to move east of the region tonight. A cold front will approach later Thursday then cross the area Thursday night.
359 PM EDT Wed Oct 12 2016 High pressure over the region will give way to a weak cold front Thursday along with scattered showers to the mountains.
135 PM MDT Wed Oct 12 2016 19Z Water vapor imagery RAP analysis indicated strong short wave trough moving across MN and IA forcing strong cold front into central TX and eastern OK. The cooler temps will minimize the fire wx threat even with the stronger winds. Thursday morning kept the forecast dry as the weak short wave trough moves through for the same reasons as stated previously.
With high pressure building in it will be a quiet evening. Low temperatures will range from the upper 50s in southeast Alabama to the lower 60s in the Big Bend.
Early morning water vapor imagery together with GFS 500mb heights revealed a large upper level trough over the high plains with large scale ascent over the Upper Midwest. Tonight high pressure will build across the region and skies will clear which should allow temperatures to fall into the upper 20s at most locations, with lower 30s elsewhere.
242 PM EDT Wed Oct 12 2016 Cool and dry Canadian high pressure will build over the region this week. A dry cold front will move across the area late Thursday with strong autumn high pressure returning for the end of the week and weekend. Expect another seasonably cool night as a high pressure system now centered over the Canadian Maritimes continues to dominate the weather pattern over eastern CONUS. This high will recede northeast into the central Atlantic as a dry cold front approaches from the west. Have gone on the high side of model consensus as guidance has been under-forecasting temperatures as of late. This will give us lows ranging from the lower and mid 50s inland to the upper 50s at the beaches.
333 PM CDT Wed Oct 12 2016 A cold front will move into the area tonight. Cooler temperatures will commence for the end of the work week.
231 PM EDT WED OCT 12 2016 Canadian high pressure over the area will weaken in advance of a dry cold front into the area late Thursday.
A cold front extended from southern Iowa into southwest Wisconsin. Otherwise, expect an increasing coverage of showers from west to east by late morning into the afternoon hours as a strong cold front pushes through the region. For tonight, expect a clearing sky and light wind with ideal conditions for frost and freezing temps. frost/freeze headlines will expire at 9 am otherwise high pressure will provide wall-to-wall sunshine, light winds and cool temperatures. Thursday night: High pressure will slip off to the east but models have slowed the progression northward of warm air advection mid/high level clouds. Lows will range from the mid to upper 30s north to the lower 40s south.
The upper ridge south the area will keep it it warm and dry through much of the short term. However the advancing cold front and the movement of Nicole seem to force the center of the ridge to the west.
Tonight Through Thursday West flow aloft with high pressure will be over the west tonight and Thursday with warmer temperatures. Winds will pick up Thursday afternoon and shift to the southwest ahead of an incoming Pacific low pressure trough. Thursday Night Through Wednesday A series of fast moving Pacific low pressure troughs will bring mountain snow and valley rain across the west. West flow aloft with high pressure will be over the west tonight and Thursday with warmer temperatures. Winds will pick up Thursday afternoon and shift to the southwest ahead of an incoming Pacific low pressure trough. A series of fast moving Pacific low pressure troughs will bring mountain snow and valley rain across the west.
This trough will be accompanied by some upper level dynamics and some minor isentropic lift.
High pressure will maintain generally clear skies tonight, favoring another chilly night (though not as cold as last night).
700 PM EDT WED OCT 12 2016 Canadian high pressure over the area will weaken in advance of a dry cold front into the area late Thursday.
Otherwise not much change to the forecast, it will be dry with highs in the lower 80s.
300 PM CDT WED OCT 12 2016 19z/2pm surface analysis shows cold front approaching the I-55 corridor. Once the front passes, skies will gradually clear from west to east overnight as a much cooler/drier airmass flows into the region. With strong high pressure firmly in control of the weather, sunny and cool conditions are expected on Thursday with highs only in the upper 50s and lower 60s. The affects of the chilly high pressure will linger on Thursday night, as mostly clear skies for a majority of the night help low temps dip into the lower 40s.
331 PM CDT WED OCT 12 2016 Early afternoon objective surface analysis indicated a ridge axis from eastern SD into northwest KS. Latest higher-resolution forecasts /RAP-HRRR-HRRRX/ indicate temperatures will flirt with freezing, but may not get as cold as previously thought.
211 PM EDT Wed Oct 12 2016 Dry and cool high pressure will remain in the forecast area through tonight. A cold front will approach from the northwest Thursday. High pressure will ridge into the area from the north behind the front over the weekend. The surface pressure ridge will remain in the forecast area through tonight. Aloft, broad troughing will be over the area. Expect this cloudiness will dissipate with the loss of heating this evening with a little upper cloudiness associated with the broad upper troughing. A small bubble of high pressure will break off from the main wedge and settle over the area tonight. Temperatures should warm further ahead of the next weak cold front as cold advection shuts off at low levels. The weak cold front will move through the area from the northwest overnight.
main concern focused on freezing temperatures. Look for overnight lows ranging from the lower/middle 20s across the cold favored sand country of central WI. High pressure remains in control across the region through Thursday night for dry/cooler than normal conditions. Look for highs Thursday in the 50s with lows Thursday night in the lower/middle 30s.
The low level moisture follows the precipitation out of the area pretty quickly and clouds should decrease shortly after the precipitation ends. Even with the sunshine this afternoon, the cold air advection on the north winds will be strong and expect highs to only be in the lower 50s across the area this afternoon. The high pressure will bring lighter winds and with the clear skies the temperatures will drop off quickly tonight. Most locations will be in the lower 30s, and the northern part of the area will drop into the 20s. The far south will have a little harder time to make the freezing mark, but with the hilly terrain, the lower spots will get colder.
Thus the freeze warnings given the high level of confidence.
Currently a cold front extends from northern Wisconsin through northwest Missouri and into the Oklahoma panhandle. Temperatures will be quite warm again today with highs in the low to mid 80s. The cold front will move through the forecast area tonight with scattered thunderstorms expected ahead of the front. The cold front should be south of the forecast area by Thursday morning so no thunderstorms are expected. Cooler air will move into the region behind the front bringing temperatures back to more seasonal levels with highs ranging from the mid 60s to lower 80s. By late Thursday night, the cold front will start to move back north as a warm front.
1223 PM CDT Wed Oct 12 2016 The well advertised cold front has crossed into the CWA as of early Wednesday morning and will continue to work its way southeast through sunrise. This has brought 60 degree temperatures down to the lower to mid 50s behind the frontal boundary. Afternoon temperatures will linger in the lower 50s across most areas, with values approaching the mid 50s well south of the Missouri River. Though steep mid-level lapse rates are noted, marginal elevated instability overhead a capped environment will reduce the potential for strong storms ahead of the cold front. Could see temperatures at or below freezing for northwest Missouri tonight, and temperatures along and south of the Missouri River dipping into the mid 30s with radiational cooling underneath clearing skies.
1243 PM CDT WED OCT 12 2016 15z/10am analysis shows a narrow band of convection developing immediately ahead of a cold front along the Illinois River. Once the front passes, much cooler conditions will filter into the region for tonight, with the potential for frost west of the Illinois River. A cold front remains just to the northwest of the central IL forecast area early this morning. The main upper level trough will progress into the area mid morning through evening as the cold front progresses from Galesburg through lawrenceville bringing an active period of showers and thunderstorms. highs ranging from 64 in Galesburg to 77 in Lawrenceville can be expected as cooler air starts moving in by mid morning in Galesburg.
405 PM EDT Wed Oct 12 2016 A large area of high pressure will cover the eastern United States through tonight.
SHORT TERM (Now through Thursday night): The center of the H5 ridge remains firmly entrenched across south Texas during the next 36 hours. Highs tomorrow will again be well above normal, in the low to mid 90s.
320 PM EDT Wed Oct 12 2016 High pressure will control our weather through the evening as a cold front approaches from the west. Light south winds will keep open valleys and ridges much warmer and even temperatures in the deeper valleys will likely rise back into the 50s after midnight as clouds come in.
200 PM EDT WED OCT 12 2016 Canadian high pressure over the area will weaken in advance of a dry cold front into the area late Thursday.
211 PM CDT WED OCT 12 2016 Cold front is still slated to cross the region this evening and should be southeast of the forecast region shortly after midnight. All precipitation should be southeast of the area by sunrise, and will likely get good clearing of skies from northwest to southeast as the day progresses and much cooler high pressure pushes southeast toward the region.
107 PM EDT Wed Oct 12 2016 A strong cold front will bring showers and isolated thunderstorms to the region later this afternoon into this evening. Much cooler and drier air will follow in behind this front later tonight into Thursday.
249 PM EDT Wed Oct 12 2016 Dry and cool high pressure will remain in the forecast area through tonight. A cold front will approach from the northwest Thursday. High pressure will ridge into the area from the north behind the front over the weekend. The surface pressure ridge will remain in the forecast area through tonight. Aloft, broad troughing will be over the area. Expect this cloudiness will dissipate with the loss of heating this evening with a little upper cloudiness associated with the broad upper troughing. A cold front just west of the Appalachian region Thursday morning will gradually push southeastward through the day and cross the forecast area Thursday night.
A cold front will move south through KHOB around 12/20Z, and through the rest of the area terminals by 13/03Z. /issued 351 AM CDT WED OCT 12 2016/ Mostly clear skies are across the area with an upper trough over the Northern Plains and mostly zonal flow over West Texas and southeast New Mexico. This upper trough will move eastward today and push a cold front south into the CWA this afternoon and evening. Expect high temperatures today to reach the low 90s across central and southern areas of the Permian Basin; however, temperatures today will be very dependent on the timing of the front.
A cold front was approaching the region from the northwest. Mid afternoon temperatures were in the lower to middle 80s. Lows for tonight will range from the upper 40s east to the lower 60s northwest. Opted to go with the cooler Canadian guidance for our eastern counties.
A cold front is nearing the I-20 corridor early this afternoon bringing north/northeast winds of around 15 knots with higher gusts. As the front encounters warmer air, it will slow down, resulting in winds not being quite that strong out of the north at our aviation sites as it moves through. The low clouds that were following the front this morning are beginning to retreat back to the north this afternoon. A cold front across the Panhandle will drop south today, reaching KABI by early afternoon and then slowly working its way farther south across the rest of the terminals tonight. /issued 352 AM CDT WED OCT 12 2016/ (Today and Tonight) Cold front is reaching the northern areas of the Texas Panhandle early this morning, on pace to reach the I-20 corridor from Sweetwater to Abilene by early to mid afternoon.
Cold front extending SW from the Upper Great Lakes across Illinois and SE Missouri this afternoon will try to works its way into our northern areas by Thursday morning before pushing east of the area by Thursday evening. ridging surface and aloft.
145 PM EDT Wed Oct 12 2016 High pressure along the east coast will keep conditions mild and dry across the region through Thursday.
Elevated convection will continue to develop and spread eastward from Kansas into southwestern Missouri this morning as cold front approaches from the northwest. A much cooler airmass will overspread the Ozarks region tonight with lows falling into the lower and middle 40s. Readings may fall into the upper 30s generally along and north of the Highway 54 corridor.
335 PM EDT Wed Oct 12 2016 High pressure will continue to move east of the region tonight. A cold front will approach later Thursday then cross the area Thursday night.
Clear skies and high pressure reside over the region this morning.
Upper ridging will be the dominant player tonight into Thursday, making for mostly clear skies, light winds and warming temps.
Persistence of the deep onshore flow with area sandwiched between high pressure to the north and Hurricane Nicole well offshore in the Atlantic. Ridge aloft building across from Gulf region keeps moisture depth limited but enough low level moisture and onshore flow for continuation of low PoPs for Atlantic showers.
850mb cold front extended from a low in northern ON through MN/NE toward a secondary low in northeast CO. Have lowered highs a touch to get closer to 900mb mix-down temperatures (which would be still cooler than current forecast).
243 PM CDT WED OCT 12 2016 Vigorous cold front had cleared the forecast area as of 19z. Isentropic lift will increase ahead of an upper level trough tonight.
258 PM EDT Wed Oct 12 2016 A cold front will cross tonight and Thursday morning, with some rain showers. High pressure will continue to slide eastward as a cold front approaches. Southerly flow in advance of the boundary and mostly sunny skies should support high temperatures that are about 10 degrees warmer than average today. Shower chances will increase after midnight as the upper trough over the northern Great Lakes swings a cold front toward the region. Front will continue to make progress across the upper Ohio Valley early, followed quickly by building high pressure. With northwest flow and moisture lingering in the high terrain, have kept chance PoPs in the forecast through Thursday afternoon.
1211 PM CDT Wed Oct 12 2016 Latest water vapor satellite imagery showing upper level trough digging over the Northern Plains. 08z surface analysis indicate cold front extending from over Lake Superior into northern Missouri. Surface cold front pushes east of the forecast area by 18z today. Colder airmass filters in behind surface front/upper level trough this afternoon into tonight. temperatures will drop into the middle 20s to around 30 across much of the forecast area and possibly into the lower 20s in the favored cold locations.
A ridge of high pressure will bring one more day of dry weather to eastern Kentucky today. The good weather will come to an end overnight, as a cold front approaches from the northern and central plains. The first rain should begin moving into our northwestern counties between 4 and 5Z tonight, with the highest rain chances occurring between 7 and 16Z, as the front moves through. We should also see another day of well above normal temperatures across the area, as the ridge allows for good daytime heating and highs in the upper 70s. High pressure passing by to our north will bring a dry start to the period. However, it will be short-lived, as warm air/moisture advection sets in once the high is to our east.
Cold front has moved through the Northland leading to a cooler Canadian airmass moving in today. With fairly good mixing winds may be breezy into the morning with gusts to 20mph or so, but weaken in the afternoon as high pressure builds in from the west and the winds aloft become weaker. This evening much of the stratocumulus clouds that develop in the wake of the front and associated upper level trough will dissipate leading to clears skies and a cold night - the coldest so far this season with lows in the upper 20s away from Lake Superior, warmer by the lake. On Thursday High Pressure across the eastern plains into the mid- Mississippi river valley will result in sunny skies.
430 PM CDT WED OCT 12 2016 Clearing behind the cold front has allowed the Panhandles to warm into the upper 50s and lower 60s, which is 10 to 20 degrees below the average for mid October. Showers will end west to east as ridging builds in and swings upper level flow back to the northwest.
402 PM EDT Wed Oct 12 2016 Upper air pattern consists of a 500 mb trough in the northern plains which heads into the upper Great Lakes by this evening and into the lower Great Lakes by Thu morning.
250 PM CDT WED OCT 12 2016 The much-advertised cold front is currently moving south through the area, a bit quicker than previously expected. Winds behind the front are northeasterly, with gusts to around 20-25kt, though the leading edge of the cooler air is lagging the front by about an hour. The cooldown overnight will be hampered somewhat by cloudcover, though it will still be noticeably cooler, with lows in the middle to upper 40s north to the 60s through the Rio Grande Valley. Given cold air advection in the wake of the front tomorrow as well as widespread cloudcover, temperatures will be below normal in the middle 60s north to upper 80s south, around 15-20 degrees cooler than today for locations along and north of I-10.
These showers will be possible despite 500 mb high pressure centered in the immediate vicinity of Deep South Texas and the Rio Grande Valley.
A significant Pacific Northwest low pressure system will begin to affect northwestern Nevada Thursday afternoon as light showers begin to develop in Humboldt county.
400 PM CDT Wed Oct 12 2016 The main forecast issue in the short term will be the freezing temperatures that are expected across a vast majority of the region. Unprotected plants could be damaged or killed by these freezing temperatures.