Aikyam-Lab/Synoptic-Bench huggingface dataset:
The air mass will remain moist ahead of this low and showers and moderate rain are expected, especially across the southeast Midlands. The cold front remains stalled offshore. It is more certain that thunderstorms are no longer expected over the local area, since the atmosphere has stabilized with the advection of cooler and drier air. It will be cooler tonight with lows in the upper 50s to lower 60s. A weak upper level low over the northern Gulf of Mexico will become absorbed the northern stream upper low over the Central Appalachians/Mid-Atlantic Region by Thursday morning. allowing much drier and cooler air will filter into the area Thursday.
Still dealing with the weak cold frontal boundary moving through the FA.
High pressure centered across the region will remain in control of the weather through much of Thursday. An upstream weak cold front will approach late Thursday into Thursday night.
125 PM EDT Wed Jun 7 2017 Upper level low pressure will develop over the upper Ohio Valley region over the next couple of days, offering cooler temperatures and only slight chances of showers at times through the rest of the week.
As of 8Z, one cold front is located along the SD/MN border with a secondary front moving into the CWA from the northwest. This secondary cold front should be the focus mechanism for additional showers and thunderstorms this afternoon.
336 PM CDT Wed Jun 7 2017 18Z surface data had high pressure running from the Great Lakes into the southern Plains.
High pressure over the great lakes region will be building southward over the next few days. In the upper levels, an upper low will virtually cut off over W Virginia. A trough axis will extend westward from the low and this feature will swing across the mid state on Thursday.
Some weak return flow looks to develop over west-central to northern Iowa and have the warmer highs going in this location today.
248 PM CDT Wed Jun 7 2017 It has been another very nice day with temperatures reaching the low 80s and dew points dropping into the 40s and 50s.
Weak subtle perturbations moving through the upper ridge combined with surface heating has triggered another round of thunderstorms over the mountains. Temperatures will be a few degrees warmer as we start a warming/drying trend into the end of the work week.
1233 PM CDT Wed Jun 7 2017 The synoptic pattern early this morning features an upper trough across the eastern Great Lakes and the Northeast, with a ridge extending throughout much of the central CONUS. Daytime highs will climb into the upper 70s and low 80s with dewpoints in the lower 50s.
WV imagery indicates a northwest flow aloft prevailing across the Western High Plains downstream of a ridge axis situated across the Four Corners Region up into the plains of eastern Montana. Near the surface, a broad area of high pressure is located across the Upper Midwest and the Great Lakes. Breaks of sun possible during the afternoon and if we do break out for several hours of sunshine this afternoon then highs climbing into the lower 80s will be possible late today. Could even be a little warmer if you add a few degrees for a super. Will therefore favor the warmer MET guidance east and lean more towards the cooler CONSMOS further west which ends up being very similar to the previous forecast.
137 PM EDT Wed Jun 7 2017 A pesky upper level low pressure continues to provide cool weather with isolated showers.
230 PM CDT Wed Jun 7 2017 Quiet and seasonal wx conditions will continue into the evening hrs, as strong high pressure over the Midwest/OH Valley states gradually builds swd into the region. Even with a few mid/high clouds streaming into portions of the area from the w, skies should remain mostly clr for most of the night, as an upper low/trough axis over the Mid Atlantic also pivots swd. Cloud cover though may tempo increase Thu, as the upper low/trough pattern over the Mid Atlantic/OH Valley areas begins to gradually lift newd. Cloud cover may be a little more concentrated across NE AL on Thu, with some dynamic forcing becoming slightly better organized over extreme NE AL, invof the upper trough axis.
Temperature forecasts were holding up well, and no changes were made in the high temps for today.
315 PM EDT Wed Jun 7 2017 The afternoon surface analysis shows high pressure slowly moving across the Great lakes and low pressure and cold front well south of the region. This almost retrograding upper level low across portions of PA will continue to lead to some weak height falls. Also the freezing levels are not quite as low as predicted yesterday leading to less confidence on any small hail. This fog could lessen the risk of cooler valley temperatures overall.
however there was not enough low-level moisture in place for the lift associated with the trough to provide any showers or thunderstorms across the state today. Today Through Thursday Night An elongated upper trough, stretching from off the New England coast back to Kentucky and southern Indiana, will be the primary driver of Arkansas weather over the next couple of days. This trough is forecast to become cutoff from the northern stream by Wednesday evening, centered roughly over West Virginia. Locally, dry northerly flow around the periphery of this trough/evolving upper low, will persist through the short term. Expect highs to range from the low 80s in the north to the mid 80s for central and southern parts of the state both today and Thursday.
140 PM EDT Wed Jun 7 2017 Aviation High pressure will bring fair weather through Thursday.
339 PM CDT Wed Jun 7 2017 A ridge aloft will remain anchored over the southwest US the next few days. This airmass has resulted in lower temperatures and dew points with highs today in the lower 80s. It appears that most of this activity will stay west of the area along the western periphery of the high pressure. Highs are forecasted to be in the lower 80s again with no real change in the overall pattern.
This afternoon will be the last day of the dominant high pressure allowing temperatures to warm to well above normal reading. On Thursday a weak cold front will be making its way through the Northern Rockies.
149 PM EDT Wed Jun 7 2017 An upper level low will continue to hover around the region through Thursday as high pressure slowly builds south across the Great Lakes.
206 PM EDT Wed Jun 7 2017 Upper low continues to sag toward the area.
343 PM MDT Wed Jun 7 2017 The upper ridge has rebounded across the Rockies as anticipated. keeping the highly mixed and unstable conditions in place. Strong heating this afternoon with moisture on top of the mixed layer is again leading to storms firing on the ridgelines over most of the region. Much drier air will be moving in Thursday as the ridge axis will be forced eastward by a strong upstream system moving toward the Left Coast of NOAM. Temperatures both day and night will be running around 10 degrees above normal and we could see some reading near 100 in the lower desert valleys. With fairly strong blocking downstream over the SE CONUS and adjacent waters.
The apex of the upper ridge in place over the Rockies sharpens over the next 36 hours as it begins to push eastward across the high plains on Thursday ahead of the large low approaching the Pacific Northwest. Based on current model guidance, the CWA will be on the east side of a upper level ridge Thursday night.
145 PM EDT Wed Jun 7 2017 Clouds will finally break up today, first in Central New York and then eventually Northeast Pennsylvania, thanks to high pressure.
326 PM CDT Wed Jun 7 2017 Should be a seasonably cool night as ridge of high pressure slides southward into the bi-state region. Leaned toward if not below cooler MET guidance for lows tonight due to these conditions.
High pressure will continue to dominate over the area on Thursday with highs again in the low to mid 80s.
652 PM EDT Wed Jun 7 2017 High pressure will bring mainly clear skies and light winds during the upcoming forecast period.
Winds will become more northerly tonight and into Wednesday as a cold front over northern Florida reaches the area, along with a very active weather pattern expected for Wednesday afternoon.
The highest waves will be out toward open water and over our northern marine areas, like Sheboygan.
1231 AM EDT Wed Oct 18 2017 High pressure will hold south of New England tonight through Wednesday.
/28/ Tonight and Wednesday: Strong high pressure ridging will prevail over the area through the period. For tonight, strong radiational cooling and light winds will allow for temperatures to fall into the low/mid 40s across the area.
Breezy conditions persist over the northern sections this evening in area of tight pressure gradient north of inverted surface trof located off the SE FL coast/nrn Bahamas region. By late night, some drier air may begin to work into the far northern sections as an approaching mid level trough reaches into the area. Some of the highest seas will make it into the Treasure coast waters tonight as winds increase to around 15 knots north of Ft Pierce Inlet.
A strong short wave and low pressure system will pass well north of the forecast pushing through a dry cool front Wednesday morning. Max temps tomorrow will be cooler but still above seasonal normals with highs in the 60s. Diminishing winds Wed night in wake of earlier cold fropa as high pressure builds into central plains. Another cold front would swing through during the first part of the day but as before, the bulk of any precipitation is likely to remain southeast of the region as lee side cyclogenesis occurs over the central CONUS. The gusts are already diminishing for today, but the low level jet will remain overnight. Critical fire weather conditions are expected to develop Wednesday behind a cold front as strong winds and low relative humidities values create a potentially dangerous fire weather set up.
Cold front is still projected to move through overnight keeping the wind up at most locations overnight. Proton Previous Discussion: Tonight: A dry cold front will move through the area this evening through the overnight hours. Wednesday: High pressure builds into Eastern Montana which will help decrease the winds. Temperatures will be around 15 degrees cooler Wednesday than they were on Tuesday, which will be near normal for mid October.
Most areas will remain dry overnight but a weak inverted trough southeast of Flagler Beach will move towards the coast and bring a chance for scattered showers and isolated thunderstorms to coastal areas primarily south of St Augustine.
1126 PM CDT Tue Oct 17 2017 The elongated high pressure over the Ohio valley will remain in control of the region through Wednesday evening. There will be sufficient mixing overnight to keep temperatures a few degrees warmer than this morning. Winds will diminish tonight but remain up enough to keep temperatures a bit warmer than this morning. On Wednesday, will see highs between 5 and 10 degrees above normal for this time of year, in the low to mid 70s. Stronger sly flow returns to the area on Fri as the upper pattern becomes more amplified with ridging over the CWA. Thru this period, have trended twd the warmer guidance with mostly clear skies and sly flow. Tilly High pressure centered over the Ohio valley will provide dry and VFR flight conditions over the area through Wednesday evening.
747 PM EDT Tue Oct 17 2017 An expansive area of high pressure was centered across the Ohio Valley and mid Atlantic states.
845 PM CDT Tue Oct 17 2017 High pressure ridging into the area from the northeast will help to keep the area clear and cool tonight.
Shower and thunderstorm chances will increase by the weekend as an upper level system and surface cold front approach.
/ISSUED 845 PM CDT Tue Oct 17 2017/ High pressure ridging into the area from the northeast will help to keep the area clear and cool tonight.
1145 PM CDT Tue Oct 17 2017 Current surface analysis shows the potent cold front now through central Saskatchewan into northeast Montana. Moose Jaw in Canada recently had a peak of 71kt just as the cold front was moving through. A strong cold front will enter western North Dakota between 05-07 UTC tonight, and propagate east into central North Dakota by early Wednesday morning.
Temperatures are in the lower 80s. In the low to mid levels of the atmosphere, a cold front will stall over South Florida overnight. In the upper levels of the atmosphere, a trough of low pressure will be located over the central Gulf of Mexico tonight. The chance of rain will increase overnight as the aforementioned cold front stalls over South Florida.
/issued 914 PM CDT Tue Oct 17 2017/ High pressure remains over the Mid-South this evening. The high will begin to shift eastward overnight. This should keep lows a little warmer than last night with readings in the 40s.
914 PM CDT Tue Oct 17 2017 High pressure remains over the Mid-South this evening. The high will begin to shift eastward overnight. This should keep lows a little warmer than last night with readings in the 40s.
/issued 944 PM CDT Tue Oct 17 2017/ Dry and cool high pressure continues to dominate the region. High pressure is stretched from South Texas to New England this afternoon.
A weak short wave trough will be far enough to our north to restrict showers to well north of Baker City and McCall tonight. A weak inversion in the Treasure Valley west of Boise kept temperatures from reaching there full potential where highs were only in the lower 60s. Southeast winds should promote better mixing on Wednesday with highs expected to reach the lower 70s.
Issued by National Weather Service MORRISTOWN TN 659 PM CDT Tue Oct 17 2017 Issued at 652 CDT Tue Oct 17 2017 Continued quiet and cool conditions expected through the night with high pressure in control. light winds and lows falling into the lower to mid 40s.
749 PM EDT Tue Oct 17 2017 High pressure will move off the eastern seaboard tonight, and will remain in the vicinity through the remainder of the week, allowing dry conditions to persist through the weekend. Ridging will dominate with it strengthen some on Wednesday.
Satellite WV shows an extensive ridge over the southern portions of the Great Basin with a warm belt of moisture moving up and into Colorado from the NW. This will help bring in an upper disturbance and sfc cold front Wednesday afternoon. For the rest of the evening conditions will be mostly clear with increasing mid level clouds and lows slightly warmer than last night. Upper ridging is over the CWA Wednesday night with weak flow aloft.
936 PM EDT Tue Oct 17 2017 High pressure will maintain dry weather and warmer than normal temperatures through the weekend.
945 PM EDT Tue Oct 17 2017 High pressure will result in dry weather and a warming trend through the end of the week. High pressure will dominate through the period with clear skies and light wind. While tonight would offer up a similar scenario to last night/this morning with cooler than average temperatures and frost potential, we don't anticipate to fully decouple as there may be just enough low level mixing to preclude widespread frost. Dry weather continues through this period as high pressure remains in control at the surface.
955 PM EDT Tue Oct 17 2017 High pressure centered over the mid-Atlantic region will dominate the weather pattern through the upcoming weekend.
It will be another quiet and cool night with high pressure dominating area weather. Frost should be limited and confined mainly to the higher elevations and some sheltered valleys across southwest Virgina. Chattanooga Airport, TN 43 73 45 74 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 42 72 44 73 / 0 0 0 0 Oak Ridge, TN 42 73 44 73 / 0 0 0 0 Tri Cities Airport, TN 36 72 39 73 / 0 0 0 0.
702 PM EDT Tue Oct 17 2017 High pressure will maintain dry weather and warmer than normal temperatures through the weekend.
Under the influence of high pressure on the surface and aloft, a very dry air mass will remain through late week.
1026 PM EDT Tue Oct 17 2017 Dry high pressure with cool mornings and warm afternoons, with temperatures moderating through the weekend.
A cold front will sweep across the region late tonight and Wednesday morning. Temperatures, though still above average for mid October, will be cooler on Wednesday with highs topping out in the mid to upper 60s. Right now, it does not appear as though the lowest RH, around 20 percent, will coincide with the strongest winds. The period begins Wednesday night with an upper level ridge building into the region with surface winds becoming southerly.
Still think as the high edges further off to our east, winds will turn more southerly and pick up enough to keep early morning lows in the 40 to 45 degree range. Another nice day shaping up for Wednesday as southerly winds increase some by afternoon which should help push temperatures into the lower 70s under a sunny sky. High pressure anchored to the southeast of Illinois will keep skies mostly clear through tomorrow, with the exception of a few cirrus clouds at times. However, we still could see high temperatures climb a degree or two warmer than today.
938 PM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania through the weekend with a gradual warming trend and dry weather.
706 PM EDT Tue Oct 17 2017 High pressure will result in dry weather and a warming trend through the end of the week. High pressure will dominate through the period with clear skies and light wind. While tonight would offer up a similar scenario to last night/this morning with cooler than average temperatures and frost potential, we don't anticipate to fully decouple as there may be just enough low level mixing to preclude widespread frost. Dry weather continues through this period as high pressure remains in control at the surface.
641 PM CDT Tue Oct 17 2017 VFR conditions will prevail for the valid TAF period as moisture values remain low behind the cold front. Lower to mid level ridging maintains its hold tonight into Wednesday morning. Initially, it produces slightly warmer, near normal highs during the day. Then, increasing moisture leading to stratus formation with much warmer lows at night.
817 PM CDT Tue Oct 17 2017 Quiet weather across the region, with high pressure centered over the Central Appalachians reinforcing the dome of cool and dry air in place over the Tennessee Valley. In most areas, dewpoints will stay high enough to keep lows (generally) a degree or two warmer than last night. Temperatures should fall into the low to mid 40s by early Wednesday morning -- with a few cool sheltered valleys in DeKalb, Jackson, Cullman Counties potentially dropping into the upper 30s.
846 PM CDT Tue Oct 17 2017 The elongated high pressure over the Ohio valley will remain in control of the region through Wednesday evening. There will be sufficient mixing overnight to keep temperatures a few degrees warmer than this morning. Winds will diminish tonight but remain up enough to keep temperatures a bit warmer than this morning. On Wednesday, will see highs between 5 and 10 degrees above normal for this time of year, in the low to mid 70s. Stronger sly flow returns to the area on Fri as the upper pattern becomes more amplified with ridging over the CWA. Thru this period, have trended twd the warmer guidance with mostly clear skies and sly flow. Tilly High pressure centered over the Ohio valley will provide dry and VFR flight conditions over the area through Wednesday evening.
Highs in the low 70s were widespread today. Thus, high temperatures tomorrow should be similar if not a degree or so warmer in spots, with an isolated mid 70s reading probable. Wednesday will be a carbon copy of today with temps maybe a degree or two warmer. in the lower 70s. winds are bit stronger in the low levels and how much of this is able to make it to the surface will depend on how deep the low levels will mix. Temps will quickly cool through the 50s early this evening with lows likely in the lower/mid 40s with perhaps a few/usual cooler spots.
1136 PM EDT Tue Oct 17 2017 High pressure centered over the mid-Atlantic region will dominate the weather pattern through the upcoming weekend.
Winds will diminish tonight but remain up enough to keep temperatures a bit warmer than this morning. On Wednesday, will see highs between 5 and 10 degrees above normal for this time of year, in the low to mid 70s. Stronger sly flow returns to the area on Fri as the upper pattern becomes more amplified with ridging over the CWA. Thru this period, have trended twd the warmer guidance with mostly clear skies and sly flow. Tilly High pressure centered over the Ohio valley will provide dry and VFR flight conditions over the area through Wednesday evening.
944 PM CDT Tue Oct 17 2017 Dry and cool high pressure continues to dominate the region. High pressure is stretched from South Texas to New England this afternoon.
752 PM EDT Tue Oct 17 2017 High pressure remains over the Mid Atlantic region through the remainder of the week with temperatures gradually moderating. The current surface analysis shows ~1028mb high pressure centered over the low Potomac River. The high remains over the region tonight resulting in ideal radiational cooling conditions with clear, cool, and dry conditions expected.
At northern terminals, light southwest surface winds will shift to light northwest after 12z Wednesday and then to east by 18z as a minor perturbation aloft disrupts the surface pressure pattern along the otherwise nearly-stationary low pressure trof over eastern New Mexico.
Issued by National Weather Service HUNTSVILLE AL 704 PM EDT Tue Oct 17 2017 High pressure is controlling the weather across the Southern Appalachians, with only some passing cirrus observed on current obs/satellite data.
The warm front moves through on Wednesday however most of the precipitation will be to our north in Washington.
1148 PM EDT Tue Oct 17 2017 Low amplitude troughing is working across the northern Great Lakes region this evening. Breezy and warmer on Wednesday. Great Lakes remain locked between strong high pressure centered over the Ohio Valley and strong low pressure centered over James Bay. A moisture starved cold front will move through northern Michigan late Wednesday night.
1049 PM EDT Tue Oct 17 2017 An expansive area of high pressure was centered across the Ohio Valley and mid Atlantic states.
707 PM EDT Tue Oct 17 2017 An expansive area of high pressure was centered across the Ohio Valley and mid Atlantic states.
1042 PM EDT Tue Oct 17 2017 High pressure will move off the eastern seaboard tonight, and will remain in the vicinity through the remainder of the week, allowing dry conditions to persist through the weekend. Ridging will dominate with it strengthening some on Wednesday.
735 PM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania through the weekend with a gradual warming trend and dry weather.
716 PM EDT Tue Oct 17 2017 High pressure will remain over the area during the rest of the week. The dry pressure ridge to our northwest will dominate. Light winds and clear skies will support strong net radiational cooling tonight but the cooling will be limited somewhat with the ridge axis northwest of the region helping to maintain a little mixing. Expect low temperatures mainly in the lower 40s as indicated by the guidance consensus although temperatures in the normally colder locations will likely dip into the mid to upper 30s. The models show a significant temperature-dew point spread plus dew point temperatures remaining above freezing. We included just patchy frost in the forecast mainly in the northwest section closer to the ridge axis and the potential for a longer period of calm winds.
737 PM EDT Tue Oct 17 2017 High pressure will dominate regional weather conditions through the end of the week with fair and mild to warm temperatures expected by late October standards.
High pressure continues its influence over our area, as evidenced by clear skies and relatively calm winds throughout the region. Prior discussion below: Tonight and Wednesday: Strong high pressure ridging will prevail over the area through the period. For tonight, strong radiational cooling and light winds will allow for temperatures to fall into the low/mid 40s across the area.