Aikyam-Lab/Synoptic-Bench huggingface dataset:
A bit cooler in the DVL basin and NW MN with sooner fropa and morning clouds lingering. High pressure will move east following Highway 2 toward Lake Superior tonight, prompting light winds and making for a nice mild evening. On Monday, a combination of breezy southerly return flow and an upper level ridge building through the forecast area will bring a warmer day with highs nearing 90 in the Devils Lake basin area. Moderate instability will develop during the afternoon, especially in eastern North Dakota, but ridging aloft will keep mid levels warm enough to hold capping until the evening. Expect a cold frontal passage /FROPA/ moving across eastern ND and the northern Red River Valley through the overnight and early morning.
742 PM EDT Mon Jul 24 2017 A weak cold front will pass through the region tonight and into early tomorrow morning.
Surface analysis reveals a weak cold front generally along or south of I-64 at this time. The isolated to scattered showers and thunderstorms will continue into the early evening ahead of the weak cold front before dying down around sunset with loss of surface heating. May have some patchy fog as well across south-central Kentucky, where the higher dewpoint/moisture air resides. High pressure over the Great Lakes will continue to funnel in drier and slightly cooler air Tuesday.
706 PM CDT Mon Jul 24 2017 Upper level ridge has a firm grip on the area, with heights in the process of slowly rising across the region. A strong area of low pressure will track west to east across central Canada Tuesday. This will drive a cold front south into northwest Nebraska by late afternoon. Should be a couple of degrees warmer than today, as area will be in favorable location for the heat just in front of the approaching cold front. Will see highs nearing 100 degrees at most locations, with areas around O'Neill a little cooler due to higher humidity (but it will feel just as hot due to heat index).
Overnight lows will fall into the lower to middle 70s.
High pressure will provide dry weather through midweek. Cold front with storms late work week. Isolated to scattered showers and storms have developed ahead of the cold front entering the mid Ohio River Valley. The cold front will slide through late this afternoon into this evening. High pressure dominates for Tuesday with drier air in place. Models have an upper ridge in the west and upper trough in the east.
A cold front will drop south into the region late tonight and on Tuesday.
Upper level ridging will keep sunny and warmer weather over the region Tuesday, except for some isolated morning low clouds near the coast.
An area of low pressure off of the northern California coast will maintain seasonably cool temperatures with widespread night and morning low clouds through Tuesday. Warmer conditions return for the second half of the week as the upper level ridge builds back over California. An upper level low off the northern California coast has deepened the marine layer to over 2000 feet. This caused inland temperatures to be as much as 15 to 20 degrees cooler than yesterday.
1204 AM EDT Tue Jul 25 2017 A dry and stable environment will exist over the next 24 hours as high pressure slowly builds into the region. * None A nice stretch of late July weather is set to unfold for the next couple days as continental high pressure takes control in the Great Lakes. Cooler northerly flow today has already scoured out the humid air that was in place over the weekend and a little more drying is expected tonight. Resulting highs in the lower 80s are right about normal for July 25th.
Winds will remain light as high pressure moves southeast across the Great Lakes. An upper ridge will begin to shift eastward tonight, and the rising heights will bring gradually increasing temperatures back into MO/IL. Highs on Tuesday will be a few degrees warmer than Monday, and the heat index is forecast to reach the upper 90s across parts of the area. Kanofsky After a brief respite from the heat a new upper level ridge edges it's way into the CWA Tues. An upper low moving from the high plains into the Great Lakes region late Wed night/early Thurs will bring a cold front through the CWA.
814 PM EDT Mon Jul 24 2017 Aviation/Marine High pressure from Canada will bring cooler and drier weather through Tuesday.
Tonight and Tuesday High pressure drifting over the Great Lakes Region this afternoon through tuesday will bring cool comfortable and quiet conditions to the area. Winds turn to the south on Tuesday, any warming may be offset with increasing mid to high level clouds with an approaching frontal and upper trough from the Northern Plains.
A bit cooler in the DVL basin and NW MN with sooner fropa and morning clouds lingering. High pressure will move east following Highway 2 toward Lake Superior tonight, prompting light winds and making for a nice mild evening. On Monday, a combination of breezy southerly return flow and an upper level ridge building through the forecast area will bring a warmer day with highs nearing 90 in the Devils Lake basin area. Moderate instability will develop during the afternoon, especially in eastern North Dakota, but ridging aloft will keep mid levels warm enough to hold capping until the evening.
Clearing skies and warmer temperatures will arrive for mid week. Thunderstorms in central NY have weakened as they have moved into our cooler more stable airmass. Surface and upper level trough will take its time working across the region Tuesday.
Scattered showers and thunderstorms continue along the cold front as it moves though west central North Dakota. Showers and isolated thunderstorms are forming along the advancing cold front in western North Dakota at this time. This cold front will be the focus for isolated to scattered showers and thunderstorms later this afternoon and evening, some of which may become severe. It should be noted that there is disagreement in the high resolution models. The cold front continues to sweep southeast overnight. Tuesday will see cooler high temperatures for most of the forecast area, with another chance for a strong to severe storm across our far southeast in the afternoon along the front.
Hot temperatures are expected the next couple days as a 595 dam mid-level ridge remains centered across the Southern Plains.
Upper level ridging over the southern and central plains will gradually shift back to the west over the Rockies over the next several days.
High pressure ridging across south Florida will meander north to across central Florida overnight through Tuesday with the pocket of dry air remaining across much of the local area from the Gulf of Mexico. Isolated to scattered rain chances will be in place with the highest chances north, and timing continuing in the early morning near the coast and pushing inland for the northern zones, with later morning/early afternoon development for the central and southern zones Tuesday. Lows tonight will be in the upper 70s to near 80 along the coast, and in the lower to mid 70s inland. Highs Tuesday will be a little warmer, mainly in the lower to mid 90s except upper 80s at the beaches.
Latest upper analysis shows an upper low crossing the Canadian prairies with a trough extending southward into Montana. South of the boundary, temperatures are currently around 100F with dewpoints in the lower 60s. Overnight the upper low in Canada will continue to shift eastward a disturbance in the flow will bring a slight chance of showers or thunderstorms to far northeastern Wyoming and far northwestern South Dakota late tonight.
An area of low pressure off of the northern California coast will maintain seasonably cool temperatures with widespread night and morning low clouds through Tuesday. Warmer conditions return for the second half of the week as the upper level ridge builds back over California. Temperatures across the region this afternoon are running a few to as much as 15 degrees cooler (at the Santa Rosa ASOS) compared to yesterday as a mid/upper level trough and associated low pressure system remains off of the northern California coast. The ridge of high pressure over the southwestern portion of the country is then forecast to build back toward the West Coast late in the week.
Dewpoint gradient in central Kentucky is fairly sharp this evening, with SDF and FFT down into the lower/mid 60s, while FTK and LEX remain in the lower 70s. Surface analysis reveals a weak cold front generally along or south of I-64 at this time. The isolated to scattered showers and thunderstorms will continue into the early evening ahead of the weak cold front before dying down around sunset with loss of surface heating. May have some patchy fog as well across south-central Kentucky, where the higher dewpoint/moisture air resides. High pressure over the Great Lakes will continue to funnel in drier and slightly cooler air Tuesday.
841 PM CDT Mon Jul 24 2017 Scattered showers and thunderstorms continue along the cold front as it moves though west central North Dakota. Showers and isolated thunderstorms are forming along the advancing cold front in western North Dakota at this time. This cold front will be the focus for isolated to scattered showers and thunderstorms later this afternoon and evening, some of which may become severe. It should be noted that there is disagreement in the high resolution models. The cold front continues to sweep southeast overnight. Tuesday will see cooler high temperatures for most of the forecast area, with another chance for a strong to severe storm across our far southeast in the afternoon along the front.
With a cold front draped across central MN, strong warming in the 900 to 800 hPa layer will CAP the atmosphere for much of the day with MLCIN values between 200 and 300 J/kg.
Could get a brief window of MVFR cigs around sunrise but impact should be an hour or less and coverage will be spotty so will hint at the lower cig with a sct015-sct025 deck in the morning. The upper ridge of high pressure building into the region from the west will help to keep POPS low and temperatures high across SE TX tomorrow. The strengthening ridge will lower POPS once again for Thu and Fri. 5" along and ahead of this boundary as it move across the lower MS River Valley with the western extent of this activity in SE TX. 41 Weak high pressure over the northern Gulf should allow for southwest winds today. Winds become southeast by mid week with low pressure deepening in the plains.
1156 PM CDT Mon Jul 24 2017 Upper level ridge has a firm grip on the area, with heights in the process of slowly rising across the region. A strong area of low pressure will track west to east across central Canada Tuesday. This will drive a cold front south into northwest Nebraska by late afternoon. Should be a couple of degrees warmer than today, as area will be in favorable location for the heat just in front of the approaching cold front. Will see highs nearing 100 degrees at most locations, with areas around O'Neill a little cooler due to higher humidity (but it will feel just as hot due to heat index).
1254 AM EDT Tue Jul 25 2017 High pressure will provide cooler and less humid conditions tonight into Tuesday.
510 PM MDT Mon Jul 24 2017 Latest upper analysis shows an upper low crossing the Canadian prairies with a trough extending southward into Montana. South of the boundary, temperatures are currently around 100F with dewpoints in the lower 60s. Overnight the upper low in Canada will continue to shift eastward a disturbance in the flow will bring a slight chance of showers or thunderstorms to far northeastern Wyoming and far northwestern South Dakota late tonight.
A rather robust cold front will accompany this wave moving southeast across the area through the day, with some meager instability resolved ahead of the front by the models.
1154 PM EDT Mon Jul 24 2017 An upper trough, located over the Great Lakes early this morning, will push slowly across Pennsylvania early this week. In its wake, high pressure will build southeast across the region by midweek.
Convection now gradually decreasing over se Ga but still lingering as storms continue ahead of an mid/upper level trough. Shower activity will get off to an early start Tuesday morning with numerous showers/storms expected across se Georgia as the trough pushes even closer to the area.
Overnight lows will generally range from the low to mid 70s. Clouds will increase overnight mainly east and south of Interstate 35 as dewpoints remain in the lower 70s. The shear axis responsible for the development of storms earlier is expected to push farther to the east of South Central Texas by Tuesday while the subtropical upper level ridge builds into the southern Plains.
730 PM EDT Mon Jul 24 2017 A stagnant mid-level trough will keep very-humid conditions over the region today with a continued threat for showers and thunderstorms.
Chattanooga Airport, TN 74 92 73 93 / 20 30 10 20 Knoxville McGhee Tyson Airport, TN 72 90 70 91 / 10 20 10 10 Oak Ridge, TN 72 90 70 92 / 10 20 10 10 Tri Cities Airport, TN 66 88 64 89 / 10 10 10 10.
714 PM EDT Mon Jul 24 2017 A stagnant mid-level trough will keep very-humid conditions over the region today with a continued threat for showers and thunderstorms.
Atlc ridge axis extending from Bermuda to the the nrn Bahamas acrs Lake-O will generate a light to gentle srly breeze overnight.
608 PM CDT Mon Jul 24 2017 Showers and isolated thunderstorms are forming along the advancing cold front in western North Dakota at this time. This cold front will be the focus for isolated to scattered showers and thunderstorms later this afternoon and evening, some of which may become severe. It should be noted that there is disagreement in the high resolution models. The cold front continues to sweep southeast overnight. Tuesday will see cooler high temperatures for most of the forecast area, with another chance for a strong to severe storm across our far southeast in the afternoon along the front.
930 PM EDT Mon Jul 24 2017 A cold front will pass through the area tonight.
710 PM EDT Mon Jul 24 2017 A dry and stable environment will exist over the next 24 hours as high pressure slowly builds into the region. * None A nice stretch of late July weather is set to unfold for the next couple days as continental high pressure takes control in the Great Lakes. Cooler northerly flow today has already scoured out the humid air that was in place over the weekend and a little more drying is expected tonight. Resulting highs in the lower 80s are right about normal for July 25th.
In the low to mid levels of the atmosphere, an Atlantic ridge of high pressure will extend across south central Florida overnight. In the upper levels of the atmosphere, a ridge of high pressure will be located over the Bahamas tonight.
648 PM CDT Mon Jul 24 2017 An upper level ridge remains in place across the area today with dry conditions expected for the next 24 hours. Winds will be quite gusty out of the south tomorrow ahead of the advancing cold front which could hopefully help mitigate some of the heat.
610 PM CDT Mon Jul 24 2017 Quiet weather is expected through the period with neutral upper- level flow and high pressure building across the area at this surface. Once the low clouds fade (they have been trending more cellular with time), the mostly clear skies and light winds anticipated may be conducive to fog development. Current model guidance is not too excited about fog tonight, but they weren't excited about the low clouds either, leading to low confidence in their output.
/Issued 306 PM CDT Mon Jul 24 2017/ Isolated showers/thunderstorms will be possible this afternoon across far southeast Oklahoma and northwest Arkansas, primarily in the higher terrain areas. As upper high builds back into the region expect much of eastern Oklahoma and west-central Arkansas to have indices in the 103-107 degree range Tuesday afternoon.
728 PM EDT Mon Jul 24 2017 High pressure will provide cooler and less humid conditions tonight into Tuesday.
1014 PM EDT Mon Jul 24 2017 A weak cold front will pass through the region overnight into early Tuesday morning.
sunny and warmer on Tuesday. Strong high pressure continues to build into the Western Great Lakes region this afternoon in the wake of low pressure moving toward New England. Gusty NE winds will quickly diminish this evening as well as daytime mixing comes to a close and the upstream high pressure center drifts overhead. with overnight lows mainly in the lower 50s. Tuesday looks sunny and warmer.
Despite slightly cooler temperatures, heat index values will increase on Tuesday.
952 PM EDT Mon Jul 24 2017 An upper level trough will remain over the eastern U.
Continued cooler Tuesday with near normal temperatures, then warmer for the remainder of the week. Temperatures have been running about 5 to 10 degrees cooler this evening when compared to last night.
618 PM CDT Mon Jul 24 2017 A relatively dry air mass currently in place will slowly erode early Tuesday morning as southerly return flow commences underneath a weakening upper-level ridge.
Low pressure over southeast Colorado will work its way slowly northeast along the front tonight and Tuesday. Rain will gradually diminish and move southeast Tuesday night as the cold front works slowly south and east of the area with the better forcing also shifting to the south and northeast.
634 PM CDT Mon Apr 24 2017 For the 00Z TAFs, a surface trof of low pressure will move across the forecast area late this evening and tonight with winds becoming more westerly. A cold front is then expected to move through KGUY Tuesday morning, then across KDHT late Tuesday afternoon with northwest, north, and northeast winds in its wake. This cold front is not expected to move through KAMA unitl just beyond this fcst cycle. Healthy thunderstorm pops Tuesday night continue, with northern sections being most favored as sharp 700 mb trof moving into the area is accompanied by higher theta-e air.
1135 PM EDT Mon Apr 24 2017 Low pressure tracking along the East Coast should result in periodic rain chances mainly east of I-79 early in the week. Dry and warm weather is expected with mid-week high pressure. Will continue to monitor the possibility of easterly winds and a strong inversion at ridge top producing a mountain wave, providing strong wind gusts along and to the western lee of the ridges. The upper low will track along the coast Tuesday, keeping us on along the northwestern periphery of the system. Rain chances will remain best confined to the higher elevations, but a weak area of deformation could spill rain west, closer to Pittsburgh during the day Tuesday.
Tonight and Tuesday The latest rap analysis and satellite/radar imagery show a surface warm front losing definition over central Wisconsin early this afternoon.
Temp trends showing a little warmer lows than previous forecasted, and adjusted them slightly upward. Sunny high pressure will lift all sites to VFR around 16Z.
1214 AM EDT Tue Apr 25 2017 High pressure will build across northern Maine and the maritimes overnight.
With onshore flow back and increasing humidity, look for tonight to be much warmer than the previous couple of nights.
939 PM CDT Mon Apr 24 2017 Have been monitoring freezing drizzle potential in the Langdon/Cando areas this evening. However, the NAM does have some light QPF through 09Z with the absence of ice crystals in the column (with temps warmer than -10C). As the area of pcpn moves up toward the Lake of the Woods, temps are a little warmer too, so the threat of heavier accumulating snow should end. Thereafter, as the low continues to shift east tonight, the pcpn will slowly end from west to east. North winds will encompass the entire FA, and temps will drop in areas that were warmer today.
Sunny high pressure will lift all sites to VFR around 16Z.
807 PM EDT Mon Apr 24 2017 Plenty of deep layer cloud cover continues to reside across eastern Kentucky this evening, stemming from a low pressure system across the Carolinas. Given the low pressure location we are seeing easterly flow across the region and mostly cloudy skies for most. This as deep low slowly moves north and east and weak upper level ridge tries to nudge into the region. Given that did keep fog going in the Lake Cumberland region tonight, given the higher potential for breaks in the clouds. This will allow for clearing skies and warmer temperatures with high progressing into the mid to upper 70s.
A cold front was noted across the eastern Dakotas this afternoon.
High level cloudiness associated with a weak short wave trough over northern Coahuila will move across the region tonight as this feature moves eastward into the Coastal Bend by 12Z Tuesday morning. Southerly low level flow will increase to 25-30 knots overnight in response to a developing area of low pressure over the high plains. This area of low pressure will deepen on Tuesday in response to the upper trough diving southeast out of the central Rockies.
803 PM EDT Mon Apr 24 2017 High pressure will build across northern Maine and the maritimes overnight.
A couple models are showing the potential for fog near Lake Michigan later tonight into Tuesday morning as higher dewpoints arrive, but not sold on this due to how dry it is in the low levels.
Breezy southwest winds will continue tonight as a cold front approaches the state.
743 PM CDT Mon Apr 24 2017 Increasing westerly flow aloft, on the leading edge of a strong extended cross-Pacific jet, has forced lee troughing out west on the High Plains.
539 PM MDT Mon Apr 24 2017 The main concern with this forecast package is the timing of the cold front moving through Niobrara and Converse counties tomorrow.
Regional radar shows showers across the much of the CWFA underneath both of the low pressure systems. The low clouds are expected to break by mid morning on Tuesday. low pressure associated with closed mid level low will be located near the NC/VA coastline with weak high pressure settling in its wake across Ga and Gulf states.
As a result warmer conditions have occurred this afternoon as highs have warmed into the lower to middle 70s. Highs Tuesday will top out in the upper 70s to the lower 80s.
/issued 323 PM CDT Mon Apr 24 2017/ Considerable cloud cover has kept temperatures significantly cooler across Northeast Mississippi and near the Tennessee River in West Tennessee today.
Surface analysis showing high pressure ridging through Louisiana. Aloft, area is within a dry west to northwest flow behind exiting southeast CONUS cyclone followed by modest ridging over the lower Mississippi valley.
With approaching cool front and low pressure overnight into Tuesday morning. With the inverted trough setting up over the western counties by 18z. upglide lift will occur along and more so to the west of the trough. Currently Bufkit soundings show little if any elevated instability for Tuesday and with most of the lift north of the boundary into a cooler airmass. /Tuesday night through Monday/ Tuesday night a deep upper trough moves out of the Rockies into the Plains and ejects energy across the region up into the Upper Midwest.
/issued 954 PM CDT Mon Apr 24 2017/ High pressure remains over the Mid-South this evening. /issued 323 PM CDT Mon Apr 24 2017/ Considerable cloud cover has kept temperatures significantly cooler across Northeast Mississippi and near the Tennessee River in West Tennessee today.
/Issued 743 PM CDT Mon Apr 24 2017/ Increasing westerly flow aloft, on the leading edge of a strong extended cross-Pacific jet, has forced lee troughing out west on the High Plains.
1127 PM EDT Mon Apr 24 2017 A low pressure system will affect the area tonight, before pulling away Tuesday.
954 PM CDT Mon Apr 24 2017 High pressure remains over the Mid-South this evening. /issued 323 PM CDT Mon Apr 24 2017/ Considerable cloud cover has kept temperatures significantly cooler across Northeast Mississippi and near the Tennessee River in West Tennessee today.