Aikyam-Lab/Synoptic-Bench huggingface dataset:
525 AM CDT Thu Jul 23 2020 A weak cold front extended from southeastern MI southwest through central MO. Highs on Friday will be slightly warmer as upper level ridging builds into our area from the Plains.
657 AM EDT Thu Jul 23 2020 A cold front moving southeast through New York northeast Pennsylvania will bring showers and thunderstorms to our area today into this evening.
An upper level trof will remain over the middle Mississippi and lower Ohio valleys today into Friday.
234 PM CDT Thu Jul 23 2020 Short Term Rinse and repeat for the next couple of days expect widespread highs in the low 90s with overnight lows in the low to middle 70s.
A westward expansion of the southern and central plains upper level high pressure ridge will occur over the weekend, with slightly increasing heights across the Panhandle and South Plains. Our region will remain just south of the ridge center with light easterly flow through a substantial layer, and we will be slightly warmer but still generally close to normal temperatures for late July. And a cold-core upper low dropping into southeast Canada and the upper Great Lakes will send a weakening cold front southward into the Great Plains.
104 PM EDT Thu Jul 23 2020 Atlantic high pressure will persist, along with showers and thunderstorms each afternoon and evening. Deep layered high pressure centered over the Atlantic will remain in control of the local weather. Highs will peak in the low to mid 90s away from the locally cooler coastline. No significant fog or stratus concerns and forecast lows are in the low to mid 70s inland and upper 70s to low 80s closer to the coast.
Today will be a little cooler than yesterday with highs in the mid-70s to upper-80s.
209 PM MDT Thu Jul 23 2020 The summertime Southwest Monsoon pattern continues over our region with a plume of higher than normal moisture feeding north between a synoptic scale trough to our west and an upper level ridge to the southeast.
217 PM CDT Thu Jul 23 2020 Most convection this afternoon has been confined to the higher terrain of southeast OK/northwest AR, and alos across west central OK where slightly deeper moisture is in place. Overall scope of forecast the next several days includes low thunderstorm chances and a strengthening upper ridge over the weekend.
Temperatures at 3 pm cdt ranged from 97 degrees at Pine Ridge to 80 degrees at Sisseton. On Friday, south to southwest winds will bring in the even warmer air with highs in the 90s across the entire region. As far as precipitation goes, a strong short wave trough will lift across northwest sd and into western nd into this evening. A short wave trough in the southwest upper flow is expected to kick off thunderstorms from southwest to northeast in central sd during the afternoon. These will develop/move east into the evening and overnight with the lift from the short wave trough and movement of the surface cold pool eastward.
Upper level ridging over the southeastern CONUS will prevail through the near term. However, a northern stream trough will progress over the Ohio Valley today and then move eastward over the northeastern CONUS on Friday. At the surface, high pressure will remain parked over the Appalachians. Low temperatures tonight will be along the same lines as we've seen recently, with values in the lower to mid 70s north of I-10 and in the upper 70s south. This is likely because of the higher chances of heavy rain during the day in these areas.
/Tonight through Friday Night/ Upper level ridging has moved into the region, but, isolated convection has developed across portions of extreme NE TX/SE OK/SW AR near an upper level disturbance. This will bring widespread showers and thunderstorms to the region by tomorrow afternoon and slightly cooler temperatures. Highs should top out in the upper 80s to lower 90s, but could be a bit cooler in places that receive prolonged rain.
1103 AM MDT Thu Jul 23 2020 08z surface analysis had low just north of KSHR with stationary front into eastern NE and trough into southwest WY. By afternoon, 3KJ/kg MLCAPE develops ahead of trough from K2WX to KICR, but with 25-75J/kg MLCIN. Td/s soaring through the 60s to the lower 70s combined with highs in the mid-upper 90s will push heat indices to 100-105F across parts of central SD. Friday, aforementioned trough slices CWA in half from northeast to southwest under southwest flow aloft.
1133 AM CDT Thu Jul 23 2020 The Missouri Ozarks will remain on the eastern periphery of an upper level high which is centered over the central and southern Plains. Highs today will be similar or perhaps a degree or two cooler than the last few days. Seasonably hot temperatures will then continue into the weekend as that upper level high remains camped over the central and southern Plains.
For the Weekend, warm and humid conditions will persist, with air temperatures topping out in the lower 90s with heat index values around 100 each afternoon.
Expect this activity to continue through this evening as upslope flow persists along the higher terrain and additional storms develop along lingering and new outflow boundaries across the plains. Friday, upper ridging will strengthen over the south central Plains, shunting better mid level moisture westward and suppressing thunderstorm development across the eastern half of the forecast area.
High pressure will gradually move across Wisconsin tonight through Friday. High temperatures will be a few degrees warmer than today, ranging from the upper 70s near Lake Michigan to the mid 80s well inland.
252 PM EDT Thu Jul 23 2020 A trough moving into the Carolinas and stalling Friday will bring an increase in showers and thunderstorms for the start of the weekend.
The flow regime will slowly transition toward more ridging aloft across the Lakes region, as we progress through the weekend.
Thunderstorm chances look to be low on Friday as the ridge continues to build into our region.
244 PM CDT Thu Jul 23 2020 18Z surface data has high pressure over the Great Lakes while a warm front ran from near KSTL into western North Dakota. Quiet conditions will be seen from late this afternoon through Friday as high pressure moves into the eastern Great Lakes.
110 PM EDT Thu Jul 23 2020 VFR flying conditions will prevail through at least midnight as high pressure continues building southeastward across the region. A Weak cold front is currently along the Michigan Ohio border where some shower activity is moving through. High pressure centered over Wisconsin will slowly move east across Michigan through Friday.
This is blow off from a line of convection along a pre-frontal trough over West and Middle TN. This is leading to cooler temps still in the mid 70's as of 930 AM which is reducing MLCAPE to 300-500 J/Kg with low- level lapse rates only around 5-6 C/Km this morning. Garuckas Chattanooga Airport, TN 73 92 72 93 72 / 20 70 20 60 20 Knoxville McGhee Tyson Airport, TN 72 91 71 92 72 / 40 70 20 50 10 Oak Ridge, TN 71 91 70 92 71 / 50 60 20 40 10 Tri Cities Airport, TN 68 87 67 90 67 / 40 60 20 40 10.
1256 PM CDT Thu Jul 23 2020 The mid/upper ridge axis across the Southern Plains is progged to amplify and rotate into the Central Plains region as we move through the day today.
Some of the highest dewpoints will be seen across our eastern CWA Friday, this in combination with above normal temperatures for continuation of the Heat Advisory in our east. MUCAPE values in the lowest 3km to reach 2500-4000 J/kg.
The upper trough will remain in the area tonight and tomorrow, so there still may be showers and storms overnight mainly in the east and north before chances increase during the day on Friday.
However, there is still some weak ascent with the main upper level trough and frontal boundary just to our south. Given the precipitation today, and cooler temperatures heading into the overnight period, some locally dense fog may develop, assuming we achieve enough clearing. Temperatures should be warmer on Friday with less shower and storm coverage. Lows may be a bit cooler with readings into the mid to upper 60s.
210 PM MDT Thu Jul 23 2020 Overview: SW flow aloft will prevail over the High Plains -- on the northwest periphery of an upper level ridge centered over the Central/Southern Plains.
A weak cold front will work into the area tonight.
Dry and warmer weather can be expected for the weekend. No major changes were needed for tonights forecast as scattered convection will continue to plague the Upr OH as a longwave trough/weak cdfnt slide toward the area. Areas that clear tonight with progress of the trough/front may experience fog dvlpmnt given rainfall and lingering boundary layer moisture. Building high pressure will keep the remainder of the area dry with seasonable temperature.
Similar conditions are expected on Friday as our area remains on the edge of an upper level high pressure system centered over the Great Lakes.
223 PM EDT Thu Jul 23 2020 A cold front will move offshore tonight with showers and thunderstorms. High pressure builds in for Friday and into the weekend with increasingly warm temperatures. The associated short wave trough will move east overnight but troughing aloft will remain nearby, keeping a WNW flow over the area. Highs will be in the low to mid 80s across the area and with drier air in place it will be a pleasant day.
345 PM EDT Thu Jul 23 2020 Atlantic high pressure and an inland trough will persist. Deep high pressure will maintain control of the local weather through tonight. Low temperatures will range from the low 70s inland to around 80/low 80s at the beaches. Fairly typical summertime weather is expected to prevail between high pressure extending into the area from the east and a trough inland.
1234 PM CDT Thu Jul 23 2020 A weak cold front extended from southeastern MI southwest through central MO. Highs on Friday will be slightly warmer as upper level ridging builds into our area from the Plains.
Upper level ridging is in place across the Central Plains. Friday is largely expected to be quiet, but a weak disturbance will move across the High Plains helping to develop thunderstorms across western Nebraska. Now, some guidance does indicate the potential for scattered activity early Friday morning skirting the Sandhills and our forecast area, but honestly much of the high res guidance has kept it dry and thus have kept the forecast dry for now.
355 PM EDT Thu Jul 23 2020 A weak cold front will slowly move south toward the Ohio River tonight and stall south of the river early Friday. The front will eventually dissipate as high pressure builds into the Great Lakes and northern Ohio Valley for the weekend.
Otherwise, expect another night of lows in the low to mid 70s. While we can't rule out some isolated afternoon showers, the ridge is expected to continue to strengthen over the area, so the coverage of any showers or storms is expected to be significantly less than it has been the past two days, especially as far as the Big Country is concerned. 20 (Friday Night through Next Thursday) The upper ridge that has dominated our weather pattern in recent weeks will shift northward over the Central Plains this weekend.
The marine layer remains deep this afternoon, about 2500 feet deep at Fort Ord, as a weak upper low tracks slowly across Central California. This deep marine layer has maintained cooler than normal temperatures in most areas, something that will likely continue through Friday.
High pressure will continue to be in control across the region tomorrow, before pushing off to the east.
739 PM EDT Thu Jul 23 2020 Atlantic high pressure and an inland trough will persist. Deep high pressure will maintain control of the local weather through tonight. Fairly typical summertime weather is expected to prevail between high pressure extending into the area from the east and a trough inland.
The low level boundary that has served as the firing mechanism for todays storms will again be in play for tomorrow.
1019 PM EDT Thu Jul 23 2020 Weak low pressure will cross the region tonight.
/Issued 217 PM CDT Thu Jul 23 2020/ Most convection this afternoon has been confined to the higher terrain of southeast OK/northwest AR, and also across west central OK where slightly deeper moisture is in place. Overall scope of forecast the next several days includes low thunderstorm chances and a strengthening upper ridge over the weekend.
1003 PM EDT Thu Jul 23 2020 Atlantic high pressure and an inland trough will persist. Deep high pressure will maintain control of the local weather through tonight. Fairly typical summertime weather is expected to prevail between high pressure extending into the area from the east and a trough inland.
547 PM MDT Thu Jul 23 2020 Overview: SW flow aloft will prevail over the High Plains -- on the northwest periphery of an upper level ridge centered over the Central/Southern Plains.
Otherwise, clear skies with light northeast winds will prevail through the night as high pressure expands across the northern lakes. The flow regime will slowly transition toward more ridging aloft across the Lakes region, as we progress through the weekend.
Short term model consensus continues to suggest that a broad weakness in the subtropical ridge will develop from the southern Appalachians southwestward into the central Gulf Coast by tomorrow morning, as mid-level height rises become focused across the central Plains.
947 PM EDT Thu Jul 23 2020 A few lingering showers and perhaps a thunderstorm will be possible overnight across Northeast PA as a cold front departs the area.
/issued 234 PM CDT Thu Jul 23 2020/ Short Term Rinse and repeat for the next couple of days expect widespread highs in the low 90s with overnight lows in the low to middle 70s.
1036 PM EDT Thu Jul 23 2020 A weak cold front will slowly move south toward the Ohio River tonight and stall south of the river early Friday. The front will eventually dissipate as high pressure builds into the Great Lakes and northern Ohio Valley for the weekend.
815 PM EDT Thu Jul 23 2020 A weak cold front will slowly move south toward the Ohio River tonight and stall south of the river early Friday. The front will eventually dissipate as high pressure builds into the Great Lakes and northern Ohio Valley for the weekend.
Very warm and humid conditions to the east of the trough, especially toward central SD, with hot and dry conditions to the west.
626 PM CDT Thu Jul 23 2020 With cross over temps in the low to mid 60s, and overnight lows expected to fall into the mid to upper 50s for most, have expanded the mention for fog late tonight into early tomorrow morning. High pressure will gradually move across Wisconsin tonight through Friday. High temperatures will be a few degrees warmer than today, ranging from the upper 70s near Lake Michigan to the mid 80s well inland.
The most likely location given the axis of the higher PWATs and moisture profiles seen in model soundings seems to be from north- central Oklahoma down through a portion of central and into southwest Oklahoma. Otherwise, the low level flow looks uniform.
1036 PM EDT Thu Jul 23 2020 Currently - Surface to lower level ridging extends from the Atlantic reaching just into the southeastern United States. Short Term Update - Expect winds to gradually increase back to gentle to moderate east to southeast breezes due to ridge well to our north. However, ridging to our north will gradually push winds back up to moderate east to southeast breezes. Radar is showing a decrease in showers across the Middle Keys, which is also expected to occur in the Lower Keys tonight.
1051 PM EDT Thu Jul 23 2020 High pressure offshore will extend into the area through early Friday. A weak front will drop across the area by Friday night, with an upper trough persisting through most of the weekend. The upper trough will result in somewhat unsettled conditions, and slightly cooler temperatures. Minimum temps tonight persistent in the low to mid 70s. Friday and Friday Night: An upper trough will be deepening as it moves toward the eastern Seaboard on Friday. Highs on Friday will be in the lower to middle 90s with overnight lows in the lower 70s.
Stronger mid level ridging is building in from the north and has already resulted in less coverage of convective activity this evening. On Friday, ridging will continue to strengthen and we should remain mostly precipitation free across the region.
Tonight & Friday: Upper level ridging will build over the region resulting in fair weather and increasing temperatures. After lows Friday morning in the lower 70s, temperatures should rise into the low 90s by late afternoon (4 to 8 degree jump from today's highs).
559 PM MDT Thu Jul 23 2020 The summertime Southwest Monsoon pattern continues over our region with a plume of higher than normal moisture feeding north between a synoptic scale trough to our west and an upper level ridge to the southeast.
627 PM EDT Thu Jul 23 2020 A cold front will move offshore tonight with showers and thunderstorms. High pressure builds in for Friday and into the weekend with increasingly warm temperatures. The associated short wave trough will move east overnight but troughing aloft will remain nearby, keeping a WNW flow over the area. Highs will be in the low to mid 80s across the area and with drier air in place it will be a pleasant day.
18Z surface data has high pressure over the Great Lakes while a warm front ran from near KSTL into western North Dakota. Quiet conditions will be seen from late this afternoon through Friday as high pressure moves into the eastern Great Lakes.
1229 AM CDT Fri Jul 24 2020 High pressure is expected to keep conditions this evening quiet with mostly sunny skies.
Another upper trough will drop down on Friday, causing wind increases again from the west off the Pacific and across the Cascades and into the forecast area with a marine push. However, conditions will remain dry, and only slightly cooler than today.
With Tropical Cyclone Hanna pushing westward and deeper moisture moving with this system, drier air has been filtering into the forecast region over the last 6-12 hrs or so. Highs today in the lower to mid 90s, with heat indices up to near 105. Overnight, we can't rule out a stray shower for coastal waters and coastal zones given the low levels remain quite moist.
1208 AM MDT Fri Jul 24 2020 Overview: SW flow aloft will prevail over the High Plains -- on the northwest periphery of an upper level ridge centered over the Central/Southern Plains. With synoptic subsidence to the east (beneath the ridge) and light WSW-SW flow aloft over the Rockies -- convection will largely be tied to diurnal heating/ topography, suggesting that development will most likely occur in climatologically favored areas (i.
343 AM CDT Fri Jul 24 2020 Today and Tonight: Mid level ridge axis across the MidSouth will continue to push north today as the active easterlies take more firm control. While the high moisture content will lead to efficient rainfall production and heavy rain, relatively dry antecedent conditions have led to 1-hr FFG values around 3 inches, so the area can take some rainfall before it becomes a problem.
328 AM CDT Fri Jul 24 2020 321 AM CDT Aside from some patchy fog forming in some locations this morning and anticipated again early Saturday, broad ridging at the surface and upper levels should provide quiet and dry conditions over the next two days. Today will be the milder of the two, especially along the lake where highs may only reach into the low 80s due to easterly or northeasterly flow off the water. Saturday begins a return toward warmer and more humid conditions as winds shift to more of a southerly component.
309 AM EDT Fri Jul 24 2020 A trough will be the focus for showers and thunderstorms the next couple of days.
123 AM EDT Fri Jul 24 2020 Atlantic high pressure and an inland trough will persist. Fairly typical summertime weather is expected to prevail between high pressure extending into the area from the east and a trough inland. The main difference compared to previous days will be slightly cooler temperatures aloft due to a weaker upper ridge, at least through Saturday. Highs should be near normal in the lower to mid 90s with heat indices peaking about 100-105 degrees.
1147 PM EDT Thu Jul 23 2020 High pressure centered over the northern lakes will maintain light east winds through the night. The flow regime will slowly transition toward more ridging aloft across the Lakes region, as we progress through the weekend.
Otherwise, expect another night of lows in the low to mid 70s. While we can't rule out some isolated afternoon showers, the ridge is expected to continue to strengthen over the area, so the coverage of any showers or storms is expected to be significantly less than it has been the past two days, especially as far as the Big Country is concerned.
Temperatures should recover nicely, with high temperatures reaching the low 90's most areas west of the Cumberland Plateau and heat indices reaching 100+ at some of these locations by afternoon.
309 AM CDT Fri Jul 24 2020 Mild Friday morning to start as the upper ridge axis remains centered over the southern plains. Given no major changes in airmass today, temperatures are mostly similar to yesterday with readings in the lower 90s. Adjusted dewpoints slightly, mixing down to the low 70s at peak heating, resulting in maximum heat indices from 100 to 102 degrees.
258 AM CDT Fri Jul 24 2020 High pressure centered across the Great Lakes region providing a clear and rather comfortable early morning, with temperatures in the 60s and light winds. Today: Quiet in the short term as high pressure sits across the Great Lakes region. Dewpoints are expected to push into the lower to mid 70s in our western cwa. Tonight: Clear to partly cloudy with lows ranging from the lower 70s west to the mid 60s east.
Cold front is slowly moving across eastern OR this evening and will eventually move into southern Idaho. A cold front to the northwest of the area will slowly shift southeast through Friday. Dry conditions will prevail on Saturday as an upper trough passes by to our north.
1245 AM MDT Fri Jul 24 2020 The summertime Southwest Monsoon pattern continues over our region with a plume of higher than normal moisture feeding north between a synoptic scale trough to our west and an upper level ridge to the southeast.
206 AM EDT Fri Jul 24 2020 High pressure will settle over the Great Lakes region today and remain nearby through the weekend.
BW Chattanooga Airport, TN 91 73 92 72 92 / 60 30 50 20 50 Knoxville McGhee Tyson Airport, TN 90 70 91 71 91 / 60 30 40 20 40 Oak Ridge, TN 91 70 91 70 92 / 60 20 40 10 40 Tri Cities Airport, TN 87 67 89 67 89 / 50 20 40 10 40.
A weak cold front meander over the area while continue to dissipate Friday. Longer periods of sunshine will allow temperatures to reach the mid to upper 80s across the lowlands, ranging with the upper 70s in the mountains. High pressure should generally be in control of the weather through the period. However, afternoon dew points in the mid to upper 60s across the lowlands should keep afternoon heat indices manageable.
333 AM EDT Fri Jul 24 2020 A frontal boundary near the Ohio River will eventually dissipate as high pressure builds into the Great Lakes and Ohio Valley for the weekend.
High pressure over central Indiana for much of the weekend will lead to increasing temperatures and dry weather.
242 AM MDT Fri Jul 24 2020 Overview: SW flow aloft will prevail over the High Plains -- on the northwest periphery of an upper level ridge centered over the Central/Southern Plains. With synoptic subsidence to the east (beneath the ridge) and light WSW-SW flow aloft over the Rockies -- convection will largely be tied to diurnal heating/ topography, suggesting that development will most likely occur in climatologically favored areas (i.
After a warm start to the day, highs are forecast to reach into the low 90s with surface dewpoints in the lower to mid 70s. Convection is expected to develop across the High Plains region ahead of a weak eastward moving disturbance. Residual morning cloud cover will likely diminish early and temperatures will rebound into the lower to possibly mid 90s again.