Aikyam-Lab/Synoptic-Bench huggingface dataset:
657 AM EDT Tue Oct 17 2017 A broad area of high pressure builds in from the west today, and will remain in control through the weekend. At the surface, high pressure to the west gradually builds to the south of the region. Good radiational cooling conditions likely tonight across interior with a favorable waa aloft setup for decoupling; allowing temps to fall into the lower to mid 30s once again. Sunny skies and a gradual moderation in temps begins on Wednesday as SW return flow develops around the high to the south. Ridging both aloft and at the surface prevails through much of the period.
622 AM EDT Tue Oct 17 2017 Aviation A large area of high pressure over the Central Appalachians will remain nearly stationary over the next couple of days. The high pressure system setting up over the Central Appalachians will remain nearly stationary over the next couple of days. There will be a cold front dropping down from the northwest on Wednesday. The low pressure system associated with this front will be rather deep with sub 980 mb pressure readings as it tracks eastward through the Canadian Prairies through Wed. a tight pressure gradient will set up between the low and high pressure systems.
Quiet weather can be expected through the week and into the weekend across central Indiana with high pressure slowly traversing the area. High pressure building over the area will bring mostly sunny skies and highs in the mid to upper 60s with weak warm advection. While lows tonight will still be in the low 40s under clear skies, some warm advection will cause temperatures to warm to above normal from Wednesday on.
The main theme for Wednesday will be an early day cold frontal passage.
With the southerly flow, temperatures are expected to return to above average values this afternoon, with the higher MOS values favored, in the lower 70s for most locations.
608 AM EDT Tue Oct 17 2017 A broad area of high pressure builds in from the west today, and will remain in control through the weekend. At the surface, high pressure to the west gradually builds to the south of the region. Good radiational cooling conditions likely tonight across interior with a favorable waa aloft setup for decoupling; allowing temps to fall into the lower to mid 30s once again. Sunny skies and a gradual moderation in temps begins on Wednesday as SW return flow develops around the high to the south. Ridging both aloft and at the surface prevails through much of the period.
High pressure is right over the region at this time, and this high will shift slowly eastward through Wed, where it will take up position along the Mid Atlantic coast and dominate our weather for the next several days. Otherwise, the cold air in place up against the relatively warmer waterways is leading to some patches of dense river fog. For temperatures today, thicknesses increase some with the high shifting east of us.
A cold front has advanced to the northern Gulf of Mexico and northern Florida. Cloud cover and rain chances should increase some after midday as weak large-scale ascent associated with the advancing large- scale trough further destabilizes and moistens the local atmosphere. The trough and associated force fields will diminish with decreasing latitude, and low-level momentum will remain weak. A high pressure system will build gradually across the southeastern United States and adjacent coastal waters this week.
323 AM EDT Tue Oct 17 2017 High pressure will maintain dry weather this week along with a gradual warming trend. High pressure becomes centered south of New England, putting us in SW flow tonight and Wed. - Warmer than normal through this period - Dry weather through this weekend This portion of the forecast will feature a nearly zonal mid level flow evolving into a strong ridge toward this weekend. Almost no moisture to work within the lowest levels of the atmosphere, so mainly clear skies expected until later this weekend.
201 AM EDT Tue Oct 17 2017 Upper level flow out of the wnw will continue through this afternoon before a trough moves through the northern plains tonight. Upper level troughing over the area early this week gives way to a more zonal flow pattern mid to late this week. Upper level trough slides across northern Ontario late Wed into Wed night. Low pressure tied to that troughing moves from western Canada Sat to scntrl Canada on Sat. Upper Great Lakes will be within low-level southwesterly flow ahead of the low. Conservative estimates would put high temps into the low 70s both days.
High pressure ridge is still in place, with the axis stretching from the Southern Plains to New England. This morning is slightly warmer than yesterday, and the beginning of a warming trend through the week. Tonight will be a couple degrees warmer than this morning. Latter half of the work week continues the warming trend with temperatures considerably warmer than climatology.
A significantly drier and cooler airmass continues to filter southeastward into our area as a cold front continues to push southeast across the FL Peninsula. While some lingering moisture at mid-upper levels will result in mostly cloudy skies across the FL Big Bend and south central GA through this morning, no rainfall is expected as high pressure continues to build across our area and PWAT values drop well below 1".
1211 AM CDT Tue Oct 17 2017 A beautiful fall work-week is in store as high pressure continues to dominate our weather. Highs today will be slightly warmer than yesterday, mid to upper 60s, as surface winds back to the southwest. High temperatures will increase a couple degrees each day this week as we remain in southwesterly flow at the surface and more amplified upper level ridging moves in overhead.
Flat upper ridge will be over Montana today. A cold front will be approaching the area from the west today. Compressional heating ahead of the front along with a thermal ridge will warm temperatures into the 70s for highs today or about 15 degrees above normal. High pressure builds into Eastern Montana on Wednesday which will diminish the winds. Temperatures will be around 15 degrees cooler than today which will be near normal for mid October.
High pressure will remain in control of the forecast through Wednesday.
After a chilly start to the morning, clear skies with weak winds will bring afternoon temperatures to a few degrees warmer today than yesterday (highs low 80s). Weak ridging aloft will build over the region into the mid week. A slow warming trend will begin to develop, with lows tonight still well below normal (low to mid 50s), but a few degrees warmer, and temperatures Wednesday rising back into the mid 80s.
Cooler than normal temperatures expected with clear to partly cloudy skies across Central Alabama.
625 AM EDT Tue Oct 17 2017 Cool and dry high pressure will build into the Mid-atlantic today. The high pressure system will moderate and persist into the first part of the weekend. A cold front will approach the region late in the weekend. Water vapor imagery shows the upper level trough axis pushing southeast off the Carolina coast this morning. Low-level north to northeasterly flow will continue to advect cooler and drier air into central NC today and tonight.
327 AM EDT Tue Oct 17 2017 SHORT TERM (TODAY THROUGH WEDNESDAY): An upper level trough over the southeast US is associated with a surface cold front boundary moving through northern Florida. The cold front will move into South Florida later tonight before stalling and washing out across the region Wednesday. Even though this is a cold front we will not see any significant cooler air as temperatures will remain around normal.
Examination of 00z OAX and DVN RAOBs vs Mon highs suggests we should again be able to mix to near H85, beyond expectation of late October model forecast soundings, and current temps are generally 10 to 15 degrees warmer than this time yesterday.
250 AM EDT Tue Oct 17 2017 High pressure is right over the region at this time, and this high will shift slowly eastward through Wed, where it will take up position along the Mid Atlantic coast and dominate our weather for the next several days. Otherwise, the cold air in place up against the relatively warmer waterways is leading to some patches of dense river fog. For temperatures today, thicknesses increase some with the high shifting east of us.
High pressure stretches from central Texas northeast through the Ohio valley and into the mid Atlantic. The high will slowly become centered a bit farther east each day. Meanwhile, a series low pressure systems will slide by north of the Canadian border. Highs will be in the ballpark of 70 degrees each day after the cooler nights.
A 850-700 mb thermal ridge will settle over srn WI this afternoon, while 925 mb temps rise to 13-14C.
620 AM EDT Tue Oct 17 2017 Dry high pressure with cool mornings and warm afternoons, with temperatures moderating through the weekend.
535 AM EDT Tue Oct 17 2017 High pressure will result in gradually warming weather and dry conditions through the week. High pressure will maintain nearly clear skies and light wind today. High pressure will remain firmly entrenched over the area through the rest of the week, ensuring a dry forecast.
150 AM EDT Tue Oct 17 2017 Cold front has passed through the forecast area. High pressure will build in behind the cold front along with cooler and drier air for Tuesday through the end of the week. Cold front has pushed through the forecast area, and the colder and drier air is now moving into the cwa on strong northerly winds. Low temperatures tonight will be much cooler with mid 40s to around 50, but slightly warmer along lake shores. High pressure will build into the Southeastern states on Tuesday and Wednesday bringing sunny and cool conditions to the area. Lows Tuesday night in the lower to middle 40s. Highs in the upper 60s to lower 70s on Tuesday with slightly warmer highs on Wednesday as the airmass begins to moderate.
336 AM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania for the remainder of the week with a gradual warming trend and dry weather expected. The cold temperatures this morning are the main focus in the near term with high pressure dominating the region through the middle of the week and beyond. Temperatures today will be roughly 5 to 15 deg warmer than yesterday.
252 AM EDT Tue Oct 17 2017 Canadian high pressure will build into the area tonight with slowly clearing skies and chilly temperatures with areas of frost expected. High pressure remains atop the region for the remainder of the week with fair weather expected along with mild temperatures.
Light northerly flow at the surface and very dry air above 850mb will allow temperatures to rebound into the low to mid 80s this afternoon. Low temperatures tonight will be in the 50s, except for the low to mid 60s at the beaches. High temperatures Wednesday will range from the low to mid 80s near the coast to the upper 80s to around 90 degrees across the west.
The pattern will gain some amplitude during the week, with a longwave trough forming near the West Coast and downstream ridging developing mid- continent. That pattern will likely be be short-lived, as the development of a much stronger trough out near 160W will result in a transition to ridging near the West Coast, and troughing over the Great Lakes region by the end of the period. Rather windy conditions are expected by Wednesday afternoon as the gradient tightens ahead of a cyclone tracking across southern Canada.
This all comes courtesy of surface ridging to our south and a dry atmosphere through the column. Besides the warmer trend in temperatures, the other main difference in the sensible weather compared to yesterday will be less wind as the low level flow starts to turn out of the south.
319 AM EDT Tue Oct 17 2017 Strong high pressure will bring dry weather through the remainder of the week. Synoptically quiescent conditions with clear skies and sfc anticyclone bisecting the North Country early this morning. Afternoon highs expected to range from the low 50s east of the Green Mtns, to the upr 50s in the Champlain Valley, and generally 55-60F across nrn NY.
Another deep low pressure system will move ashore across British Columbia and track east into Cntl Canada, well north of Nebraska. 978 mb low pressure will track through Cntl Canada tonight.
555 AM EDT Tue Oct 17 2017 High pressure will build in from the west this morning then hold south of New England through Wednesday.
302 AM CDT Tue Oct 17 2017 High pressure will remain anchored over the Ohio river valley thru the short term forecast period.
Rain chances along with high mountain snow and cooler temperatures late in the week followed by a warming trend this weekend. Periods of high clouds will be possible as the weak wave moves through today, and more high cloudiness is likely the next couple of days as moisture spreads northward from the subtropical low pressure system offshore.
Surface analysis early this morning places a 1028 mb ridge of high pressure centered over the Ohio Valley and Lower Mississippi Valley.
104 AM EDT Tue Oct 17 2017 High pressure will dominate the weather pattern this week with a warming trend and dry conditions.
450 AM CDT Tue Oct 17 2017 Today and Tonight: Continued cooler than normal and dry. Under a light wind and full insolation today, temperatures will top out several degrees warmer than yesterday but still a couple degrees cooler than normal. Under clear skies and a near calm wind tonight, strong radiational cooling of our dry airmass will lead to morning lows cooler than normal again. Lows will range from the lower 40s east to the upper 40s south and west. Normal lows run in the lower 50s.
Cannot rule out some patchy frost on the northern Plateau tonight but with dewpoints staying well above freezing frost formation appears unlikely.
Temperatures are expected to be on the high side of objective guidance today and Wednesday, and we have raised temps with this morning's forecast. A passage of a cold front on Wednesday should bring a bit higher cloud cover, but moisture is so limited that it looks like it will be at least partly sunny. Winds will become a bit gusty across the region by this afternoon, with even stronger gusts expected behind the cold front on Wednesday.
High temperatures Wednesday afternoon will be slightly cooler in the wake of today's cold front.
A potent cold front will sweep from northwest to southeast tonight, prompting wind concerns for northern North Dakota, followed by fire weather concerns Wednesday. A dry, but very strong cold front in terms of an abrupt wind increase and a temperature change, will plow through northwest North Dakota near midnight, and quickly sweep through central ND overnight. Much cooler Wednesday with highs in the mid 50s north to lower 60s south.
644 AM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania for the remainder of the week with a gradual warming trend and dry weather expected. The cold temperatures this morning are the main focus in the near term with high pressure dominating the region through the middle of the week and beyond. Temperatures today will be roughly 5 to 15 deg warmer than yesterday.
The high is fcst to weaken as the period progresses, which will allow S/SE winds to return later in the PD.
strong cold front will continue pushing southward today while north-northeast flow will bring cloudy conditions to much of northeast FL. Much cooler with highs in the 70s.
338 AM CDT Tue Oct 17 2017 (Today and Tonight) Weak northwest flow aloft over our area will become westerly by early Wednesday morning, as an upper ridge over the southwestern CONUS is suppressed south into Mexico and South Texas.
Most excellent flight weather for much of the forecast period with dry air and more beautiful ridging.
Scattered showers and weak thunderstorms have developed along and ahead of the cold front that is draped across the region at this hour. With it's current pace, the front should clear the CWA no later than mid- evening, giving way to cloudy and much cooler conditions. Expect overnight lows to fall into the lower 50s across the northern half of the CWA under mostly clear skies, with low to mid 60s across the southern half, where cloud cover will remain prevalent overnight. Broad upper-level troughing will prevail through the period, with ridging at the surface and the front just south of our southeast Big Bend counties.
Temperatures should be about the same as yesterday, then possibly slightly warmer tonight with a little cloud and a bit more wind--though the dry air has allowed for 50 degree diurnal swings in the valleys and tonight should still be close to that. The flow aloft will weaken Wednesday afternoon and Wednesday night as the ridge axis shifts over Colorado and a weak short wave trough moves into the Great Basin.
Strong upper level ridge will keep the warming trend in lows and highs going through this period. passing disturbances across the Panhandle both today and again on Wednesday will contribute to breezy winds over mountain ridge tops, and particularly the TAF sites in the Snake plain on Wednesday. Winds become a little breezy today, gusts of 15 to 25 expected over the ridge tops of the Southern Sawtooth area and about 25 to 30 mph gusts over the Lemhi Range and Bitterroot.
A modest surface pressure gradient existed between a trough over northern WY and high center over northwest CO.
144 AM CDT Tue Oct 17 2017 High pressure will remain anchored over the Ohio river valley thru the short term forecast period.
239 AM EDT Tue Oct 17 2017 High pressure will build in from the west this morning then hold south of New England through Wednesday.
421 AM EDT Tue Oct 17 2017 Dry high pressure with cool mornings and warm afternoons, with temperatures moderating through the weekend.
satellite imagery and model data show a low pressure system aloft moving along an upper lvl trough over the SE states, sending an associated sfc cold front boundary into northern Florida.
246 AM EDT Tue Oct 17 2017 Cool Canadian high pressure builds into the region tonight and Tuesday, then remains over the area through the remainder of the week. Latest MSAS has the cold front well off the NC coast with high pressure building in from the west. Continued breezy Tuesday morning especially in the east as high pressure builds in form the west. Conditions become more calm by afternoon with the high directly over the region.
336 AM EDT Tue Oct 17 2017 Cool and dry high pressure will build into the Mid-atlantic today. The high pressure system will moderate and persist into the first part of the weekend. A cold front will approach the region late in the weekend. Water vapor imagery shows the upper level trough axis pushing southeast off the Carolina coast this morning. Low-level north to northeasterly flow will continue to advect cooler and drier air into central NC today and tonight.
215 AM MDT Tue Oct 17 2017 Upper flow over the northern plains is west-northwesterly, as the broad ridge continues to expand over the CONUS. Under clear skies, winds are light and southwesterly, and temperatures at 2 AM range from the upper 30s to the lower 50s. Tonight, a Canadian wave will flatten the upper ridge and push a cold front into the northern plains. The upper ridge will rebuild for the end of the week, with continued dry weather and temperatures warming back into the 70s and lower 80s.
We continue to remain on the eastern edge of a ridge of high pressure, so today will be much like yesterday, except edging warmer thanks to southwesterly winds. By Wednesday, upper flow turns more zonal, and combined with southwesterly winds, highs will edge even higher to the lower and mid 80s.
250 AM MDT Tue Oct 17 2017 A ridge of high pressure centered over Baja CA will ride southeast and flatten through Wednesday as the next series of Pacific storms rides east along the US and Canadian border. The lower atmosphere is very dry, with precipitable water less than 0.
329 AM EDT Tue Oct 17 2017 Upper level flow out of the wnw will continue through this afternoon before a trough moves through the northern plains tonight. Wednesday, ahead of an approaching cold front temperatures are expected to climb 15 to 20 degrees above normal as low-level warm air advection spreads northward across Upper Michigan.
Warmer temperatures will return later this week as deep-layer ridging sets up over the southeastern states. As of 145 AM: With Ohio Valley high pressure in control, skies are clear across the area, except for some cirrus over the lower Piedmont associated with a jet streak over the SE Coastal Plain. Thus max temps in the Piedmont are slightly cooler. The high builds east tonight which reduces the gradient enough to calm winds in many areas. Mins accordingly will be a bit cooler, though the extent of frost has not been thoroughly evaluated. As of 135 AM EDT Tuesday: Weak upper trough slides east across the area through the period.
High pressure will remain in control of the weather pattern across Arkansas. Otherwise light and variable winds will become light and easterly and then southeasterly as high pressure slides off to the east.
Light southerly winds are helping to keep overnight temps warmer than last night and only expected to bottom out in the mid 40s. Looking for warmer 900-850mb temps to support warmer high temps today into the middle 70s across the area.
356 AM CDT Tue Oct 17 2017 At the surface, high pressure centered over the Ohio River Valley southwestward into Texas. Aloft, a trough axis runs from the Atlantic Coast to the north central Gulf of Mexico with ridging near the 4 Corners area. High pressure will remain over the eastern half of the country at the surface as upper ridging moves from the 4 Corners area today to the Mississippi River Valley by the end of the week.
442 AM EDT Tue Oct 17 2017 A broad area of high pressure builds in from the west today, and will remain in control through the weekend. At the surface, high pressure to the west gradually builds to the south of the region. Good radiational cooling conditions likely tonight across interior with a favorable waa aloft setup for decoupling; allowing temps to fall into the lower to mid 30s once again. Sunny skies and a gradual moderation in temps begins on Wednesday as SW return flow develops around the high to the south. Ridging both aloft and at the surface prevails through much of the period.
113 AM EDT Tue Oct 17 2017 High pressure will result in gradually warming weather and dry conditions through the week. High pressure will maintain nearly clear skies and light wind today. High pressure will remain firmly entrenched over the area through the rest of the week, ensuring a dry forecast.
333 AM EDT Tue Oct 17 2017 Cool and dry high pressure will build into the Mid-atlantic today. The high pressure system will moderate and persist into the first part of the weekend. A cold front will approach the region late in the weekend. Low-level dry air advection in the wake of the cold front will result in continuation of the west-east clearing trend through the evening with clear skies expected everywhere overnight. Strong CAA overnight will result in much cooler temperatures than we have become accustomed to over the past couple of weeks, with jacket/sweater wearing temperatures down into the lower to mid 40s tonight. With the cold front exiting to the east high pressure will begin to build over the area with the high centered to the northwest of the forecast area.
147 AM EDT Tue Oct 17 2017 High pressure will build into the region through the week. The center of this high looks to be positioned over eastern KY and south central Ohio by 12Z Tuesday. Subsidence from this high will provide clear skies overnight. based on this trend have adjusted hourly temperatures a little cooler. Temperatures will begin to moderate with highs on Tuesday in the low to mid 60s. Lows Tuesday night will range from the upper 30s in the east to the lower 40s across the west.