Aikyam-Lab/Synoptic-Bench huggingface dataset:
Temperatures are expected to be warmer than the previous nights as the lower atmosphere will fail to decouple in most locations. Another warm day is in store for the region on Tuesday ahead of a slow moving cold front. Have forecast highs in the upper 60s to lower 70s ahead of the front, with temperatures cooler across the northern CWA where the front will encroach and clouds will increase by afternoon. CVKING The cold front will slowly sink south to near the I-70 corridor by Wednesday morning. Clouds will be on the increase as the remnants of a stacked low pressure system move east from the southern Plains across the region.
234 AM CST Tue Nov 28 2017 Surface cold front extended from northwest Iowa through southeast Nebraska and north central Kansas at 200 AM. High pressure builds into the area behind the front today and tonight. By tonight, models develop a closed upper low over the southern plains which tracks east toward the Ohio Valley on Wednesday. This northern system will drag another cold front through the area by Wednesday evening.
229 AM EST Tue Nov 28 2017 High pressure largely controls the area through Wednesday night, less a dry cold front Tuesday night/Wednesday.
Wednesday: a quick moving surface front and proceeding warm front will push east across the state.
352 AM EST Tue Nov 28 2017 High pressure over the area tonight will move offshore Tuesday.
High pressure is centered over West Virginia with light southerly flow across the lower Ohio Valley. Tuesday highs will just trend a couple degrees warmer than today, which pushes us up in line with the warmer GFS MOS.
A quick update to reflect cooler temps across the area (due to better radiational cooler than expected). VFR conditions expected through the forecast, with dry high pressure in control. Complex high based trof axis extends from the southeast US to off the Louisiana coast. At the surface, high pressure over the Appalachians tonight, moves off into the west Atlantic thru the day Tuesday.
342 AM EST Tue Nov 28 2017 High pressure moves off the coast today.
A slightly warmer day tomorrow under a more entrenched onshore wind pattern.
The remnant of our last cold front resides over the Florida Straits, and will lift northward over the next 48 hours, bringing a moisture plume to the region.
A compact upper low will move from the four-corners to the Texas Panhandle by this afternoon. This will bring strong winds to the region behind a cold front although slightly later than previously forecast.
1108 PM EST Mon Nov 27 2017 High pressure will bring mainly fair weather for much of the week. As the high moves east, a southwest flow will develop along with moderating temperatures.
1241 AM EST Tue Nov 28 2017 Dry high pressure will build over the area into the middle of the week.
The Pacific cold front that brought some rain and mtn snow last night/this morning has cleared the forecast area early this afternoon with skies rapidly clearing in its wake. Even there, strong/damaging winds continue to appear less likely and the High Wind Warning will be cancelled early.
A slightly warmer day tomorrow under a more entrenched onshore wind pattern. Models in good agreement bringing a weak cold front through the area late Tuesday night or Wednesday. Some of the high resolution guidance.
1222 AM EST Tue Nov 28 2017 High pressure in control through mid week.
310 AM EST Tue Nov 28 2017 Remnant of the cold front currently lifting north from the Florida Straits will continue to enhance showers and isolated thunderstorm across southern Miami-Dade County and the Atlantic waters through the morning hours. Due to the increase in cloud cover, high temperatures will remain in the low 80s across the region and overnight lows remain around mid 60 to low 70. By the end of the week, next cold front arrives and pushes through the area.
02 UTC surface analysis shows an area of high pressure across Eastern North Carolina. Overnight, this area of high pressure will gradually drift eastward and by morning, where winds aren't calm, a light easterly wind should be in place. A weakening upper level trough in the subtropical jet will slowly push eastward from southern Georgia and Florida into the southwest Atlantic during this time. Despite gradually increasing PWAT values on Wednesday, dry conditions will likely prevail due to the persistent high pressure and weak upper level forcing.
104 AM EST Tue Nov 28 2017 High pressure over the area tonight will move offshore Tuesday.
gusty southerly winds with increasing VFR cloud cover from west to east are forecast as a low pressure system and associated frontal boundary approach from the west. By late afternoon winds look to start to decrease with a more easterly component for parts of Northeast Oklahoma as the low nears the CWA.
Warm air advection and higher heights aloft will lead to highs a couple of degrees warmer than yesterday with temperatures ranging from the upper 50s to mid 60s for most locations.
Winds will shift to the northwest behind the trough, with a weak cool front behind the system. A cooler air mass than today will remain in place for tomorrow, but think there will be less cloud cover and expect readings to remain above seasonal averages. Highs should range from the low 30s near the Canadian border to the low 40s in the south. Short wave trough over the eastern Pacific will move through the Northern Plains on Wed afternoon/Wed night and bring some light rain or snow. Upper level jet is expected to be on the south and east sides of the trough. Flat upper level ridge follow in tow Thu. The ridge is forecast to extend from from the Northern plains to the eastern Pacific.
156 AM CST Tue Nov 28 2017 A ridge axis aloft extends from the southern plains northeastward into the OH valley eith a trough from the Rockies into the northern plains. At the surface, a fairly tight pressure gradient was located across the area ahead of a cold front which extended from southwest KS up towards the U. The cold front will move into the area today and we should have some better dewpoints along and ahead of the front (as evidenced by observations over eastern KS). Eastern Ozarks will have the lowest humidity levels during the afternoon (in the 20s), but surface winds will likely keep fire weather conditions in the elevated category.
The main fly in the proverbial ointment will be if our newly-established light south wind kicks up to a few knots and mixes the warmer temps in the inversion layer down to the surface. Winds will increase after 12Z Tuesday as the surface pressure gradient tightens ahead of a slow-moving low pressure system currently affecting the Great Plains.
Proton 6pm Update: Cold front has pushed through the region and clearing skies continue across Northeast Montana. Proton Previous Discussion: The short term is characterized by a return of weak ridging to the region. Winds in the wake of the cold front will continue to slowly diminish overnight, but will not get down to light and variable levels.
High pressure will then bring another period of dry and slightly above normal temperatures through the rest of the week into the upcoming weekend.
409 AM EST Tue Nov 28 2017 High pressure centered to the east will keep dry weather and above normal temperatures over the Ohio Valley today. Dry weather will continue tonight through Wednesday as a weak cold front washes out across the Great Lakes.
306 AM EST Tue Nov 28 2017 High pressure will shift eastward into the Atlantic today. A weak cold front will push south into the region and dissipate on Wednesday.
332 AM EST Tue Nov 28 2017 High pressure will bring fair skies and mild temperatures to NY and PA today. A weak cold front will move through tonight into early Wednesday. Mild temperatures will develop on the backside of a departing anticyclone today. A cold front well north into Ontario will skirt NY tonight, setting off a few light showers or sprinkles. Light showers and sprinkles will depart the northern forecast area early Wednesday as a cold front moves toward the Atlantic seaboard. High pressure, coincident with a ridge building aloft, will slide east through the Ohio Valley and toward Western NY and PA Wednesday afternoon.
310 AM EST Tue Nov 28 2017 Dry high pressure will prevail through Wednesday.
308 AM EST Tue Nov 28 2017 High pressure centered over New England early this morning will drift out to sea today and tonight. A series of cold fronts are forecast to approach from the northwest and pass through our region.
1243 AM EST Tue Nov 28 2017 High pressure will dominate our weather pattern through at least Wednesday with dry weather and above normal temperatures.
1149 PM CST Mon Nov 27 2017 H5 analysis from this morning had a broad ridge of high pressure across the most of the lower 48 with ridging extending north into south central Canada. Upstream of this ridge a trough of low pressure extended from western Alberta south into southern California, where a closed low was present near San Francisco. For tonight, increasing high clouds are anticipated and with enhanced mixing from a cold front, overnight lows will be relatively mild. Coolest readings will be across northwest Nebraska where high pressure will begin to settle in. Modest cold air advection behind the front will allow for noticeably cooler high temperatures on Tuesday. Readings will range from the upper 40s across northwest Nebraska to the lower 50s across our far east.
Next Pacific upper trough along 130W at 2 AM MST, moving steadily east. Trough axis will be along the Oregon coast around noon PST, eastern Oregon this evening, western Idaho late tonight, and western Montana 12Z Wednesday. Associated surface cold front will bring rain and snow showers to eastern Oregon this afternoon and evening, and western Idaho tonight, clearing from the west by sunrise Wednesday.
A cold front will bring a wind shift to Oklahoma and north Texas 12-03 UTC. A cold front will enter northwest Oklahoma toward 12Z tomorrow morning, which will bring a cooler air mass across northwest and west- central Oklahoma for tomorrow (along with breezy northerly winds).
/issued 833 PM EST Mon Nov 27 2017/ Overnight and tomorrow will feature weak troughing in the Gulf of Mexico and high pressure just off the coast of the New England states.
Weak upper level pattern across the area as Central Alabama is under weak ridging, caught between the main storm track and jet stream to our north and a closed upper level low over north Florida.
241 AM CST Tue Nov 28 2017 High pressure will continue to shift east today allowing southerly winds to bring in warmer temperatures to the Mid-South. Take caution when doing any outdoor burning Clouds ahead of an approaching upper level low pressure system will begin to spread into the area by sunrise Wednesday.
209 AM EST Tue Nov 28 2017 High pressure largely controls the area through Wednesday night, less a dry cold front Tuesday night/Wednesday.
327 AM EST Tue Nov 28 2017 Unseasonably warm conditions will prevail through much of the day ahead of a cold front set to sweep through tonight. A low chance of rain showers will also accompany the cold front as it passes Tuesday afternoon and evening. Strong southwesterly flow helping keep temperatures quite balmy for late November with readings from the lower 40s NE to lower 50s NW. Cold front still well NW of the area, located from the arrowhead of Minnesota to NW Iowa. Another northern stream trough will move through the Great Lakes late in the weekend. Stronger trough will begin to dig into the central Plains with any possible impacts remaining outside the current forecast period. Cold front approaches later in the period.
Its approach will coincide with the advance of a cold front across Oklahoma and north Texas, and the development of a surface wave/low on the front over Oklahoma.
1210 AM EST Tue Nov 28 2017 High pressure today and tonight gives way to a weak cold front on Wednesday.
401 AM EST Tue Nov 28 2017 Dry high pressure will prevail through Wednesday.
1113 PM EST Mon Nov 27 2017 High pressure will build across the region tonight through early Tuesday. A warm front will cross the region later Tuesday. A cold front will cross the region Wednesday. High pressure will cross the region overnight through early Tuesday. A warm front will then approach later Tuesday. A cold front will approach from the northwest Tuesday night then move across the region Wednesday.
These strong winds are ahead of an approaching trough and cold front. This is in response to a rapid increase of the low level jet and resultant mixing. The strong winds and increasing clouds are in response to an approaching trough/cold front. Strong southerly winds ahead of an approaching trough of low pressure will result in small craft advisory conditions through about mid afternoon on Tuesday. A passing trough and front will likely bring a period of MVFR CIGS to southern Wisconsin between 13-19z Tuesday. Forecast confidence is high: A trough of low pressure will approach tonight, with increasing winds aloft and at the surface ahead of the trough and associated front. Mostly clear skies are likely Tue night and Wednesday under high pressure. Temps Wed will be a cooler, though still a few degrees above average highs for late November.
High pressure will develop on Tuesday, followed by a fast moving weather disturbance crossing the northern Intermountain Region Wednesday. An elongated upper trough with its axis extending from northeast Utah to south-central Utah will continue to cross the area before exiting east into Colorado later tonight. The cold front associated with the trough has pretty much made it through the entire forecast area. Some winds remain gusty near and just behind the cold front but in general winds are decreasing over the area. Some stratus clouds are expected to remain over and banked along upslope regions of the higher terrain through late tonight.
1129 PM CST Mon Nov 27 2017 Record warm temperatures being experienced in portions of the forecast area today, ahead of a cold front that was moving through the western Dakotas late this afternoon. Cold front will move into northwest portions of the forecast area after 00UTC, and will move south of the I-80 corridor by 12UTC. Record low maximum temperatures generally in the upper 40s, so though minimums will be 15-20 degrees warmer than normal, still will not be record setting. Temperatures on Tuesday will be about 15 degrees cooler than today, as diurnal mixing offsets cold advection, especially across southern portion of the forecast area.
450 AM EST Tue Nov 28 2017 Departing high pressure will create a milder southwest flow and moderating temperatures today and tonight.
Latest RAP40 analysis shows H100-H70 mean RH values have increased to 60-70pct north of the I-4 corridor, and 70-80pct to the south, while an H100-H70 anticyclone over the Mid Atlc coast is generating a 10-15KT easterly breeze thru 5KFT, veering to S/SE btwn 5-10KFT. The anticyclone will push into the W Atlc today, gradually shifting its orientation from north-south to east-west as a frontal trof over the Great Plains/Upr Midwest rides over its nrn flank.
Generally went cooler by a couple of degrees, into the low/mid 30s - enough for a frosty windshield in many locations to greet those who start their day before the sun warms things up. Wednesday morning should begin about 10 degrees warmer than Tuesday morning starting in the lower to middle 40s. The upper low in NV will rapidly track eastbound into the mid South Wednesday afternoon and through the TN valley Wednesday night. Low level moisture/sfc dew points are forecast to climb into the lower 50s Wednesday evening, but this seems a bit high.
319 AM EST Tue Nov 28 2017 High pressure center is currently located across the Carolina's. The high will move offshore today, but continue to dominate the weather through the short term period of the forecast.
Clear to mostly clear skies with light winds are expected under the influence of surface and mid- level high pressure. /issued 150 PM CST Mon Nov 27 2017/ SHORT TERM (Tonight through Tuesday Night): A broad area of strong mid/upper level high pressure over much of Mexico will maintain a dry west to northwest flow aloft over deep south Texas through the period. At the low levels, weak southeasterly onshore flow will prevail. Surface dew points are slated to slowly increase over the next 24-36 hours with patchy fog possible for many locations early Tuesday morning as a weak cold front approaches from the north.
231 AM EST Tue Nov 28 2017 High pressure will dominate our weather pattern today through at least Wednesday night with dry weather and above normal temperatures.
1239 AM EST Tue Nov 28 2017 High pressure moves off the coast today.
227 AM MST Tue Nov 28 2017 Upper level flow will remain amplified, but progressive in the period, bringing mild weather with periodic ridge topping/flattening impulses in the flow. However, the main wind event will be with the cold front late Wed morning and afternoon across NW SD. Any snow will likely be confined to the higher elevations of the Black Hills. PAC westerly downslope flow will return Thur into the weekend with forecast models still supporting an amplifying ridge by the end of the weekend as a deep trough drops into the western CONUS.
A cold front is expected to move through the Metroplex and Waco TAF sites between 08z and 10z Wednesday bringing a wind shift to the west and northwest at 12 to 15 knots. Strong low level warm advection will continue through the overnight hours and will likely result in low temperatures 5 to 8 degrees warmer than this morning. This will intensify the flow in the low-levels, improving the quality of the moisture within the boundary layer. As the disturbance swings through Oklahoma Tuesday night, it will tug a cold front into North Texas.
1142 PM CST Mon Nov 27 2017 Southerly winds will continue into and through this evening as a cold front begins to take shape and move east across the plains late tonight. A cold front will approach the Ozarks and briefly, check up, along the I-44 corridor as a nearly stacked surface and upper low develops over the central plains. The front will then moves slowly through the area as the upper low moves east.
900 PM PST Mon Nov 27 2017 Building high pressure on Tuesday will bring warmer weather and moderate offshore winds along the coastal foothills and mountain passes.
/issued 1055 AM CDT Sun Sep 10 2017/ Another beautiful morning across the region this morning, with sfc ridging again remaining in place from the OH Valley SW into Cntrl TX. Meanwhile, 15-16Z temps are running nearly the same if not a degree warmer areawide that what was observed 24 hours ago, which should result in similar if not slightly warmer temperatures this afternoon.
241 PM EDT Sun Sep 10 2017 High pressure will build north of the area through Monday.
Current forecast soundings and models suggest that 850mb winds will be pretty strong (definitely in wind advisory criteria and some of the highest elevations could see high wind warning criteria met as well). Have the entire forecast area in a wind advisory tomorrow, but have the higher terrain of the Southern Appalachian mountains starting their wind advisory a bit earlier and continuing longer than the advisory down in the Valley counties.
343 PM EDT Sun Sep 10 2017 Mostly dry weather and warming temperatures expected throughout the work week as high pressure continues to build into the area. High pressure continues to build over the North Country. It will be cooler overnight, as temperatures fall into the mid 30s in the high terrain to mid 40s elsewhere. Monday night will see potential for fog development again as high pressure continues to provide light to calm winds and clear skies. Min temperatures expected to be a couple degrees warmer as the ridge axis begins to shift slightly east, with warming aloft. Day #2 of "high and dry" thanks to high pressure at all levels. Given the warm temperatures aloft, I did trend toward the warmer guidance options, but still may end up being a few degrees too cool.
337 PM CDT Sun Sep 10 2017 High pressure centered over the Great Lakes region and stretching to the southwest across Illinois and Missouri will move little the next 24 to 30 hours. A clear sky will allow for good cooling tonight so have trended low temperatures to the low side of guidance.
1244 PM CDT Sun Sep 10 2017 Winds are increasing across southern WI due to an increasing pressure gradient over the Upper Midwest as low pressure slowly moves through the Northern Plains. Winds are becoming southeast and increasing today due to low pressure over the Northern Plains. A big high pressure system has settled over the central Great Lakes and there it will stay for the next few days. Today's highs will be a degree or two warmer than yesterday, with lows tonight similar to what we saw this morning.
320 PM CDT Sun Sep 10 2017 A cold front currently stretching from Sherwood south to Glen Ullin and into central South Dakota will continue moving east this afternoon, clearing the James River valley shortly after 06z Monday. Quite a density gradient as dewpoints are in the lower 60s ahead of the front, with mid and upper 40s coming in behind the front. Although there could be a brief, isolated shower, the high resolution models are scarce in terms of any significant reflectivity's associated with the front through this evening. With plenty of dry air in the lower levels, will go along with that idea and keep the forecast dry. Behind the cold front, smoke/haze evident across the west per surface observations.
Significantly cooler & wetter weather late this week.
1236 PM CDT Sun Sep 10 2017 155 AM CDT Quiet weather will continue with clear skies through mid-day Monday as our strong upper ridge keeps the upstream wave across the upper Midwest away and limits the northeast progression of Irma.
405 PM CDT Sun Sep 10 2017 Upper trough of low pressure will continue to nudge eastward this evening and will be east of our zones by early evening. 850mb temperatures are very warm, so there really is no cooler air associated behind the wind shift in our northern zones. Ridging aloft will take hold through middle of the week, retreating stronger flow to the north. Zonal flow aloft will certainly keep a trajectory for smoke alive and well this week, in proximity to deformation upstream of eastern troughing with weakening remnants of Irma.
With the relatively dry air in place, more efficient warming will allow max temperatures to rise into the low to mid 80s over most areas, but slightly cooler over the southeast where clouds will be more widespread. Tropical storm force winds could be observed as far north as Northern Alabama as the center of the low pushes towards the Mid-South.
302 PM CDT Sun Sep 10 2017 Patchy showers over southeast parts of the forecast area at 19Z are expected to continue to diminish through the afternoon as upper trough over southwest Minnesota lifts northeast.
Upper air analysis this morning showed a trough extending from the Ohio Valley to the central Gulf of Mexico. Showers are becoming more isolated over the Lower Keys.
Models suggest that mid/upper level ridging and dry weather will continue to prevail through most of this week with zonal flow through srn Canada Monday slowly giving way to sw flow from the plains to the nrn Great Lakes as a trough digs into the wrn CONUS.
1210 PM CDT Sun Sep 10 2017 High pressure over the Great Lakes continues to control the weather across the Ozarks region and will remain in control for the end of the weekend.
409 PM CDT Sun Sep 10 2017 Seeing some gradient response between large high pressure over the northeastern part of the country and the very large circulation around Hurricane Irma, which made landfall near Marco Island, FL this afternoon.
1259 PM CDT Sun Sep 10 2017 The short term concern is shower/thunder potential moving across the cwa associated with upper trough. Models indicate this to move east and gradually weaken as the trough moves east into the ridge over the Great Lakes.
This will keep temps just a few degrees warmer than this morning.