Aikyam-Lab/Synoptic-Bench huggingface dataset:
1026 PM CDT Wed Sep 27 2017 Beautiful early fall weather continues across the region, under the influence of a broad area of high pressure. With decent mixing expected, high temperatures will be mild, in the low to mid 70s. Strong trough digging into the northern Great Lakes on Thursday night will help to reinforce the dominance of the northern branch of confluent flow across the region, and will drive a backdoor boundary poised from eastern SD to southwest MN southward overnight.
1019 PM EDT Wed Sep 27 2017 Cooler air continues to spill across the upper Great Lakes this evening. to the east of high pressure centered over southern Iowa and ridging northeast into Wisconsin/Michigan. weak troughing tonight into Thursday in combination with sufficient over lake instability is expected to produce lake clouds and at least scattered showers in northwest flow favored locals.
A cold front will move through the area very late tonight into Thursday, bringing northwest winds and slightly cooler highs for Thursday.
This has resulted in a MUCH cooler day than yesterday, with temperatures struggling to get out of the 60s in places. Despite much more sunshine, a much cooler start and a cooler airmass in place will result in seasonable temps with maxes in the 70s.
939 PM EDT Wed Sep 27 2017 A cold front passes tonight.
Clear skies and light winds this evening through Thursday with ridge of high pressure in place.
1052 PM EDT Wed Sep 27 2017 Isolated showers tonight with passage of a cold front.
1206 AM EDT Thu Sep 28 2017 Dry and cooler weather expected today under building high pressure.
541 PM MDT Wed Sep 27 2017 Upper level analysis has a broad trof across the northern and western CONUS with closed low over Arizona. At the surface, high pressure is located across the Northern Plains with mostly clear skies. Upper ridge builds across the area on Thursday with another warm dry day.
730 PM EDT Wed Sep 27 2017 Isolated showers tonight with passage of a cold front.
Upper low continues to move slowly northeastward across southern Utah overnight, with increasing shower coverage across our southern counties, and dry weather further north. The upper trough moves into northeastern Utah and with enough lift and moisture, will produce scattered showers and isolated thunderstorms along and west of Interstate 25.
754 PM EDT Wed Sep 27 2017 A cold front will move east tonight, followed by a large area of high pressure. Dry weather, and cooler, near normal temperatures are expected through the weekend as the high travels slowly from the Ohio Valley to New England. Cold front is located near the southeast edge of the FA. This will leave the area under partly cloudy skies as cloud formation should be curtailed by subsidence in the circulation around approaching high pressure. Cold advection will result in low temperatures several degrees cooler than in recent nights, with 6 am readings ranging from the low 50s northwest up to the upper 50s southeast. High pressure pushed by a confluent westerly flow aloft will be positioned across the area.
and a cut-off low spinning over the southwestern states. a large area of high pressure was in control over the central CONUS. Large scale flow will be progressive in nature the next several days as a deep trof currently of the Pac NW coastline moves ashore and become the dominate feature while taking on slightly negative tilt as it settle in over the rockies this weekend.
1148 PM EDT Wed Sep 27 2017 Cooler air continues to spill across the upper Great Lakes this evening. to the east of high pressure centered over southern Iowa and ridging northeast into Wisconsin/Michigan. weak troughing tonight into Thursday in combination with sufficient over lake instability is expected to produce lake clouds and at least scattered showers in northwest flow favored locals.
Ridge aloft will continue to dominate and as Maria finally moves off to the east- northeast the ridge should build in over the next few days and could effectively squash even the isolated activity we had today. In addition we will see a modified dry cold front move through late Thu. This front Is currently to the north of our area and just south of the Ozarks but will struggle to move south much until it gets a somewhat renewed push as a strong trough approaches the Grt Lakes Thu night/Fri.
A closed low in northern Arizona will lift north into southern Utah tonight, and northeast Utah late Thursday afternoon. MOS guidance blend indicates mild highs near 75 at VTN and TIF, 73 at ONL, with slightly cooler highs of 63 at IML and 65 at OGA, hindered by cloud cover. The highs were raised about 5 degrees in some areas from previous forecast.
A cold front and upper system will continue to sag slowly southeast over AR, developing isolated showers, and north to northeast winds.
613 PM CDT Wed Sep 27 2017 The short term concern remains timing of next cold front and risk of any showers. Temperatures should cool to close to overall guidance numbers, perhaps a degree cooler to the southeast. Highs in the mid 60s in the northern CWA to the lower 70s in the south look to be a good bet.
Northern areas may be drier with the bridging of the northeasterly flow.
The ongoing slow moving cold front continued to push across far Southeast Oklahoma and Western Arkansas this evening. the drier air will continue to filter into the CWA as the cold front finally pushes south of the Red River.
At the surface, a ridge remains centered over the central CONUS with Maria well off to the northeast off the Carolina/mid-Atlantic coast.
Precip is mostly confined southwest of the Highway 49 corridor and any thunderstorms should be very isolated because of the instability limits posed by the mentioned warm temperatures aloft. A cold front on the doorstep of the Arklamiss Delta at this hour will slowly slide southeast through the region between later this afternoon and later on Thursday. Moisture convergence along this boundary will not be great with predominant ridge influence aloft imposing big limits on deep instability. /BB/ The period will start off with an upper-level low continuing to slide east across the northern Gulf of Mexico with ridging over Northern Mexico and a longwave trough moving moving onto the West Coast.
Forcing ahead of the mid level trough tonight and Independence Day across southeast Kansas into Oklahoma while energy on the back side of the trough will move across northeast and east central Kansas. By afternoon the upper trough will move east into Missouri be late afternoon with energy rotating around the upper low. It appears that the chances for organized convection will be on the wane after 7pm Tues night as forcing begins to shift SE away from the area as the mid/upper trough axis shifts to our east. Rain chances should exit by Weds as upper ridging builds into the Plains.
Will maintain our current dry weather pattern for the 4th and for all the associated festivities as high pressure aloft maintains an effective cap to any mentionable convective development.
There may be some fog late tonight and early Tuesday morning across parts of southeast MO due to the recent rainfall, cooler daytime highs with less diurnal heating, mixing and drying of the boundary layer, coupled with a clearing sky this evening, light surface winds tonight, and relatively high surface dew points. There will be a slight chance of showers and thunderstorms by Tuesday afternoon across central and southeast MO as an upper level trough approaches from the southern Plains. This west/northwest flow regime will persist through much of the period as an upper-level ridge persists and eventually expands across portions of the west-central CONUS.
A strong upper level ridge of high pressure will remain anchored over the Four Corners region during the next several days and bring above normal temperatures to the central California interior.
1107 PM EDT Mon Jul 3 2017 A weak cold front slowly crosses the area tonight.
A weak upper low was also indicated over northeast Kansas helping to lift convection slowly north. Have kept PoPs on the low end for the area through Tuesday for mainly popup storms.
957 PM EDT Mon Jul 3 2017 A trough of low pressure remains near the coast tonight.
753 PM EDT Mon Jul 3 2017 A trough of low pressure remains near the coast tonight.
Anticipate variably cloudy skies overnight with min temps generally in the lower 70s.
724 PM EDT Mon Jul 3 2017 High pressure will build over the region through mid week.
725 PM EDT Mon Jul 3 2017 A cold front will drift south through the forecast area this evening. mid 60s in south and around 60F to the north given cooler/drier postfrontal air and less cloud cover. Temps and dewpoints may be a degree or two cooler but temp/moisture advections not particularly strong and will be similar to today.
Winds are very light through the profile under high pressure. /issued 328 PM CDT Mon Jul 3 2017/ High pressure remains centered over the northern Gulf of Mexico this afternoon with a light wind regime across the area.
Strong high pressure remains in control across the Gulf, supporting moderate to breezy south southeast winds. Mid-level ridging across the southern tier CONUS will continue to dominate the pattern. For Independence Day, a short- wave trough aloft moving through the Red River valley will induce a very modest weakness in the pattern locally, but 1000-500mb thicknesses and H85 temps remain essentially unchanged.
/Tonight through Tuesday/ A weak boundary evident on the surface analysis, located over the highway 20 corridor will weaken further/shift north this evening.
Chattanooga Airport, TN 70 87 71 90 / 70 60 30 30 Knoxville McGhee Tyson Airport, TN 69 86 70 87 / 50 60 50 30 Oak Ridge, TN 69 86 70 86 / 60 60 50 30 Tri Cities Airport, TN 67 84 67 84 / 20 40 60 40.
735 PM EDT Mon Jul 3 2017 Typical summer pattern will persist this week with Bermuda high pressure extending from the Western Atlantic into the Gulf of Mexico and a lee-side trough in the forecast area. The high moisture could also help support localized flooding if training develops and this has been the main threat from late this afternoon into this evening. A broad upper trough will continue over the eastern CONUS with an upper ridge over the western states.
Ridging in the west and east will help to bring more convective complexes into the region.
By Tuesday evening, it appears the higher chance for storms will have shifted into northwest Arkansas, associated with an upper wave.
Temperatures are now reaching their near maximums at 93F, but should quickly drop down into the low 80s by late evening. The low level ridge centered over Alabama will continue to suppress convection and promote slightly warmer than average temperatures for Monday. Overall, expect Tuesday to look a lot like Monday as far as temperatures in the low 90s and minimum temps in the 70s with minimal rain chances.
High temperatures several degrees warmer than today (H8 temperatures 2-3 degc warmer than today), with most areas between 75 and 80 degrees.
1026 PM EDT Mon Jul 3 2017 Under partly cloudy skies and light to gentle east winds, temperatures range from the upper 70s in the westernmost Lower Keys to the low to mid 80s elsewhere. Surface wise, a western Atlantic ridge extends across central Florid and well into the Gulf of Mexico. Away from any downpours, low temperatures will hover in the lower 80s with mostly east winds of 10 to 15 mph.
Meanwhile, an upper level ridge of high pressure is building across the Intermountain West. Near the surface, a lee side trough of low pressure extends from southeast Colorado into western Oklahoma. Warm front has lifted a bit further north into west central Kansas, as noted in the weak reflectivity extending from near Syracuse- Garden-Dodge and through Greensburg into south central Kansas. Based on the convective allowing models interpretations, the more scattered to numerous severe convective storms this evening should be primarily confined to the warm front region and warm sector, across south central Kansas counties and into western Oklahoma.
1055 PM EDT Mon Jul 3 2017 A weak cold front will push south across the state this evening. For Independence Day, high pressure will build to our north while the front stalls along or just south of the Mason- Dixon line. A cold front will pass early in the weekend and dry things out.
1151 PM EDT Mon Jul 3 2017 High pressure centered over the northern Great Lakes will sustain light northeast winds and mainly clear skies through the TAF period.
The mid level ridge axis will persist over the area through the period.
The lower confidence could be attributable to uncertainty regarding the details of convection this afternoon-tonight and its influence tomorrow, and tomorrow's overall lower areal coverage.
These areas of precip being sustained by a weak, slow-moving, area of low pressure in the lower half of the atmosphere interacting with the moisture laden air mass. Expect variably cloudy skies overnight with temperatures primarily in the lower 70s.
The heat will be the main story this week as temps continue to reach or exceed the century mark in the lower valleys, starting on Independence Day and lasting through the end of the week. Moisture will once again be limited on Independence Day, but could be just enough for an isolated afternoon shower or thunderstorm near the ID/NV border and in the higher terrain of central Idaho.
A cold front is expected to move into the Devils Lake region by 4 pm or so, and help set off thunderstorms. Some of the high resolution models break out storms in the 4-5 pm time frame in the Devils Lake area and expand them eastward through the evening.
Warm front has lifted a bit further north into west central Kansas, as noted in the weak reflectivity extending from near Syracuse- Garden-Dodge and through Greensburg into south central Kansas. Based on the convective allowing models interpretations, the more scattered to numerous severe convective storms this evening should be primarily confined to the warm front region and warm sector, across south central Kansas counties and into western Oklahoma.
High pressure aloft will strengthen across the western states through the balance of the week.
942 PM EDT Mon Jul 3 2017 A weak cold front bisecting northern Ohio will continue south of the area this evening. High pressure will build in from the north Tuesday and Tuesday night.
/issued 332 PM EDT Mon Jul 3 2017/ The ridge of high pressure centered to the northeast of the region will continue to dominate the weather across South Florida through the early portion of this week. The highest chances of rain will be located across interior and western areas mainly during the afternoon hours. High temperatures during the early portion of the week will be generally near 90 degrees across the east coast metro areas to the lower 90s across interior and west coast sections.
750 PM EDT Mon Jul 3 2017 A cold front will bring a chance of showers and thunderstorms back to the forecast today. Cold front will continue to sag south this evening. The exception may be the eastern ridges, where enough moisture may linger for isolated convection.
However, can certainly not rule out as upper level troughing deepens and weak upper level low moves closer to mid state. A slow moving low pressure system will continue to produce scattered showers and isolated thunderstorms overnight.
Tonight and Tuesday Quiet weather conditions to prevail for another 24 hours as high pressure to remain in control of northeast Wisconsin weather. The 19z MSAS surface analysis showed the area of high pressure extended from Ontario southward into the Great Lakes region. The high pressure is expected to slowly move east, but remain over the Great Lakes region tonight. Min temperatures will range from the lower to middle 50s north, middle to upper 50s south.
1143 PM EDT Mon Jul 3 2017 A weak cold front will push south across the state this evening. For Independence Day, high pressure will build to our north while the front stalls along or just south of the Mason- Dixon line. A cold front will pass early in the weekend and dry things out.
Independence Day looks a bit warmer and a little drier than we have seen recently with highs in the middle to upper 80s. Heat indices will be in the low to middle 90s. Over the next several days a trough will deepen over the Midsouth.
However, can certainly not rule out as upper level troughing deepens and weak upper level low moves closer to mid state. Low pressure with scattered showers and storms will move into the area from the west this evening bringing episodes of MVFR cigs/vsbys at CKV/BNA/MQY through 06Z. On Tuesday, improvement will be slow as the low pressure system moves slowly eastward to the Cumberland Plateau, but all sites should reach VFR by 18Z.
708 PM EDT Mon Jul 3 2017 A weak cold front bisecting northern Ohio will continue south of the area this evening. High pressure will build in from the north Tuesday and Tuesday night.
1237 AM EDT Tue Jul 4 2017 High pressure over the Upper Great Lakes this aftn will slowly move to the east through the aftn of the 4th. With the ridge overhead tonight should see cool temps inland again tonight. Lowest readings in the lower 40s will be over the interior east where there will be mostly clear skies. For the 4th, since the high pressure ridge will be more over eastern Lk Superior to Lower Michgan expect more of a Lk Michigan lake breeze compared to today. High pressure in place will extend pleasant wx right through the evening for fireworks viewing.
Warm and dry air with ridging aloft kept areal coverage of precip isolated.
940 PM EDT Mon Jul 3 2017 Weak cold front over New York state will reach the Mason Dixon Line tonight and enter northern Virginia Tuesday. Low pressure over Arkansas will slowly track east and bring additional moisture into the Mid Atlantic Tuesday.
This will bring a low pressure system along the MT/SK border this evening with weak cold front across the forecast area. Temperatures will be slightly cooler as high pressure builds into the area from Canada. The western US upper ridge rebounds into Montana Tuesday Night.
943 PM EDT Mon Jul 3 2017 A cold front will drift south through the forecast area this evening. mid 60s in south and around 60F to the north given cooler/drier postfrontal air and less cloud cover. Temps and dewpoints may be a degree or two cooler but temp/moisture advections not particularly strong and will be similar to today.
Isolated showers and thunderstorms are expected to form over the higher terrain and the southeast this afternoon and evening. Highs will be slightly cooler than Monday with winds out of the northwest, but still in the 90s for most locations.
702 PM EDT Mon Jul 3 2017 High pressure centered over the northern Great Lakes will sustain light northeast winds and mainly clear skies through the TAF period.
Chattanooga Airport, TN 72 87 71 90 / 40 60 30 30 Knoxville McGhee Tyson Airport, TN 69 86 70 87 / 30 60 50 30 Oak Ridge, TN 69 86 70 86 / 30 60 50 30 Tri Cities Airport, TN 67 84 67 84 / 30 40 60 40.
Additionally, the low and mid level lapse rates are rather anemic, which should owe to modest updraft growth. Most operational models have trended drier for Tuesday afternoon and evening, with the most widespread concentrated area of precipitation closely following the area of low pressure tracking across the Missouri Ozarks.
High clouds may prevail overnight from low pressure in the lower Ohio Valley, but improvement is expected for Tuesday.
1228 AM EDT Tue Jul 4 2017 A weak cold front slowly moves south of Long Island overnight.
1044 PM EDT Mon Jul 3 2017 Typical summer pattern will persist this week with Bermuda high pressure extending from the Western Atlantic into the Gulf of Mexico and a lee-side trough in the forecast area. A broad upper trough will continue over the eastern CONUS with an upper ridge over the western states.
752 PM EDT Mon Jul 3 2017 A weak cold front will push south across the state this evening. For Independence Day, high pressure will build to our north while the front stalls along or just south of the Mason- Dixon line. A cold front will pass early in the weekend and dry things out.
This will result in warm inland temperatures while cooler conditions persist near the coast.
915 PM PDT Mon Jul 3 2017 Strengthening high pressure over the Southwest will bring warmer weather and a shallower marine layer this week.
830 PM EDT Mon Jul 3 2017 A weak cold front will push south across the state this evening. For Independence Day, high pressure will build to our north while the front stalls along or just south of the Mason- Dixon line. A cold front will pass early in the weekend and dry things out.
Stacked high pressure is aloft of our forecast area this evening. With a relatively dry airmass and high pressure in place, expect a quiet night with mostly clear skies and lows in the low to mid 70s.
1258 AM EDT Tue Jul 4 2017 A weak cold front bisecting northern Ohio will continue south of the area this evening. High pressure will build in from the north Tuesday and Tuesday night.
807 PM EDT Mon Jul 3 2017 A weak cold front slowly crosses the area tonight.
516 PM MDT Mon Jul 3 2017 Weak forcing regime over the area as the region remains on the edge of an approaching western CONUS ridge. Convection today will be driven by elevated heat source regions able to break the cap over the west, with an old outflow/trough providing a focus for convection across scentral SD. Otherwise, hot conds will increase through mid week as the western CONUS ridge shifts east. Warm layer aloft will cap convection Wed, with the ridge retreating enough per NW flow impulses to support convection chances once again, Thur through Sat, along with âcoolerâ conds. With a broad upper ridge building over the Rockies and high plains mid week, conditions will become hot and dry.
730 PM EDT Mon Jul 3 2017 High pressure over the Upper Great Lakes this aftn will slowly move to the east through the aftn of the 4th. With the ridge overhead tonight should see cool temps inland again tonight. Lowest readings in the lower 40s will be over the interior east where there will be mostly clear skies. For the 4th, since the high pressure ridge will be more over eastern Lk Superior to Lower Michgan expect more of a Lk Michigan lake breeze compared to today. High pressure in place will extend pleasant wx right through the evening for fireworks viewing.
/issued 251 PM CDT Mon Jul 3 2017/ The forecast continues to remain not so exciting as an upper high dominates to our west.
Chances for thunderstorms return to north-central Kansas on Tuesday as a warm front starts lifting northward and stalls in that area.
450 AM EDT Mon May 29 2017 Weak high pressure will keep Memorial Day mostly dry with seasonable temperatures. Showers associated with an exiting cold front will diminish by mid-morning as high pressure builds back in out of the west. Scattered showers will continue on Tuesday as a cold front crosses the forecast area. Occasional MVFR/local IFR conditions are expected in showers ahead of an approaching cold front. A brief period of MVFR ceilings are expected behind the front, with VFR returning this morning as surface ridging builds in. Restrictions are possible Tue/Wed with an upper trough, and again Fri with low pressure.
332 AM CDT Mon May 29 2017 A cut off upper level low will continue to spin over the Upper Midwest and south central Canada today. Remainder of the night looks quiet as high pressure drifts south of the CWFA. This will cause an attendant cold front to move across Missouri and Illinois on Tuesday afternoon and Tuesday night bringing scattered showers and thunderstorms.
Currently, air temperatures range from the lower 70s in some of the island interior regions of Big Pine Key and North Key Largo to the lower 80s in areas adjacent to water.
346 AM EDT Mon May 29 2017 Ridging over the region will weaken today as a frontal boundary slowly pushes into the area. A closed upper low over the Great Lakes will continue to slowly drop southeastward today with southwesterly 500mb flow over the southeastern states.