Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front will shift winds from the northeast which will gust for several hours after frontal passage before diminishing. /issued 404 AM CDT Fri Jun 23 2017/ Generally northerly flow aloft is expected to continue through the next seven days with a nearly stationary upper ridge centered across the southwest United States. It will be another day of significant heat across much of west Texas as 850 millibar temperatures soar with aid from compressional heating south of an advancing cold front. Thunderstorms will also be possible by this afternoon across the northern Permian Basin and southeast New Mexico, closest to the southward advancing cold front. Tonight still appears to be a stormy one as the aforementioned strong cold front plunges south into the region with a strong upper level disturbance.
Despite the showers in northwest Oklahoma and the elevated showers in the southwest, the trend of the high-resolution models has been drier for this afternoon. The cold front has moved southeast of I-44, but temperatures continue to be a bit warmer than the hourly grids suggested. Cold front making its way into far northwest Oklahoma early this morning with a steady progression south and east through the day expected. Some acceleration possible late this morning and this afternoon as s/wv trough currently moving through Colorado progresses eastward. This trough will also allow scattered storms to develop near and north of the front.
An upper level ridge will remain along the West Coast today with a slightly unsettled northwest flow aloft continuing over Montana.
Maliawco Broad upper trof will be swinging through the Great Lakes over the weekend as upper ridge builds over the west coast. Northwest flow into Montana will keep temperatures generally below normal but with a warming trend expected as the ridge pushes east. High pressure sliding down the front range will provide pressure rises and gradient for another breezy day in northeast Montana. High pressure pushes east over the weekend for diminishing winds.
Brusda An upper level ridge will remain along the West Coast today with a slightly unsettled northwest flow aloft continuing over Montana.
Weaker northwest winds as upper ridge builds over the area. Temperatures will be a few degrees warmer than yesterday. Upper ridge off the northwest coast moving slowly east. Northwest flow aloft decreasing as the ridge comes closer.
1107 AM EDT Fri Jun 23 2017 Update/marine A cold front will push south through the area this morning bringing rounds of showers and thunderstorms. Cooler and less humid air will filter in behind the front this evening and tonight.
512 AM MDT Fri Jun 23 2017 Two upper lows are spinning over parts of Canada, and a wave associated with the Ontario low is pushing into the northern plains, producing a few light showers over northeastern WY and southwestern SD. An upper ridge is building over the west coast. Following a cold front, winds are northwesterly, and gusty across the western SD plains. Showers will dissipate early this morning as the wave shifts southeast and high pressure pushes into the region. Under mostly sunny skies, highs will be much cooler, in the mid 60s to lower 70s. Cool high pressure will keep highs about 10 degrees below normal on Saturday, in the mid 60s to mid 70s.
Short Term Update - Gentle to moderate east breezes will continue this afternoon with the ridge holding to our north. The highest winds will be found over the Florida Straits, where a caution is in effect.
1059 AM MDT Fri Jun 23 2017 Two upper lows are spinning over parts of Canada, and a wave associated with the Ontario low is pushing into the northern plains, producing a few light showers over northeastern WY and southwestern SD. An upper ridge is building over the west coast. Following a cold front, winds are northwesterly, and gusty across the western SD plains. Showers will dissipate early this morning as the wave shifts southeast and high pressure pushes into the region. Under mostly sunny skies, highs will be much cooler, in the mid 60s to lower 70s. Cool high pressure will keep highs about 10 degrees below normal on Saturday, in the mid 60s to mid 70s.
A cold front will approach the KABI (Abilene) terminal this evening and then slowly push across the remainder of the terminals through the overnight hours. /issued 334 AM CDT Fri Jun 23 2017/ (Today and Tonight) Another hot day across West Central Texas, with both the upper level ridge in place as well as the low level thermal ridge. Temperatures look to be a degree or two warmer for many locations, pushing a few more counties into Heat Advisory criteria. A cold front across the Panhandle this morning will sag south and enter the northern and western Big Country late this afternoon, probably after max heating. Slightly cooler tonight behind the front, especially across the Big Country where a little rain may help cool things off as well.
1020 PM EDT Sat Jul 1 2017 Cold front exiting east.
1002 PM EDT Sat Jul 1 2017 Isolated showers and thunderstorms will come to an end with high pressure settling into the region tonight into Sunday. Expect lows in the lower and middle 60s. A trough in the upper atmosphere will be positioned across the Eastern CONUS through the period, with the ILN area on the southwest side of the trough.
920 PM EDT Sat Jul 1 2017 On the western periphery of high pressure over the central N. The cold front approaching central NC tonight will weaken as it moves into Piedmont and Coastal Plain on Sunday morning. A broad cyclonic flow aloft with a trough axis located across the TN valley will still result in a pattern favorable for scattered afternoon and evening convection. The convection should be favored across the eastern Piedmont and especially the Coastal Plain near and east of the trough axis as well as the mountains and western Piedmont associated with differential heating.
A low pressure system has moved from the Lake Winnipeg area into far northwest ontario through the afternoon and should continue a steady drift eastward to somewhere north of Thunder Bay by Sunday morning. Meanwhile a weak surface cold frontal boundary from this system has slipped southward through the Red River Valley and at 6pm was laying across northeast SD and extending up through an Alexandria to Grand Rapids MN line. High pressure will build into the area tonight into Sunday. Highs look to be a little warmer than those observed today. The main story through the new work week will be the much warmer temperatures as compared to the last week or two, with periodic precipitation chances.
820 PM EDT Sat Jul 1 2017 A cold front will pass through the area this evening.
740 PM EDT Sat Jul 1 2017 Cold front exiting east.
833 PM EDT Sat Jul 1 2017 On the western periphery of high pressure over the central N. The cold front approaching central NC tonight will weaken as it moves into Piedmont and Coastal Plain on Sunday morning. A broad cyclonic flow aloft with a trough axis located across the TN valley will still result in a pattern favorable for scattered afternoon and evening convection. The convection should be favored across the eastern Piedmont and especially the Coastal Plain near and east of the trough axis as well as the mountains and western Piedmont associated with differential heating.
/issued 220 PM CDT Sat Jul 1 2017/ A cold front/outflow boundary has moved south into the area behind convection which moved southeastward into central Texas earlier today.
Will wait and see how the convection out on the high Plains evolves tonight. /Issued 304 PM CDT Sat Jul 1 2017/ The isolated thunderstorms that developed in the vicinity of the old synoptic cold front over northeast Oklahoma and northwest Arkansas have pretty well faded. Sunday will see more isolated to scattered showers and thunderstorms even as the front moves to the north of the area as a warm front.
955 PM EDT Sat Jul 1 2017 Latest RAP40 analysis of the H100-H70 lyr shows central FL beneath a col with ridging oriented east/west, troffing oriented north/south. Ridging more defined thru the H85-H30 lyr, but with the axis draped over the north half of the peninsula. Temps aloft slightly cooler than Sat with H70-H50 lapse rates btwn 6. A deep lyr anticyclone centered over the north central GOMex will maintain a light nrly mid/upr lvl flow thru over central FL that will push lingering convective debris clouds clear of area through early morning. Bermuda Ridge axis just north of Cape Canaveral will generate a light to gentle SE breeze acrs the lcl Atlc overnight.
825 PM EDT Sat Jul 1 2017 A cold front passes early Sunday morning.
827 PM EDT Sat Jul 1 2017 Isolated showers and thunderstorms will be possible this afternoon before high pressure settles into the region tonight and into the day on Sunday. Went close to guidance with overnight lows tonight, ranging from the lower 60s in the NW to the mid 60s in the SE. A trough in the upper atmosphere will be positioned across the Eastern CONUS through the period, with the ILN area on the southwest side of the trough.
Will wait and see how the convection out on the high Plains evolves tonight.
VFR conditions expected for the next 24 hours as 500 mb high pressure overhead continues to provide subsidence across the area tonight through Sunday. /issued 207 PM CDT Sat Jul 1 2017/ SHORT TERM (Tonight through Sunday Night): Broad area of mid/upper level high pressure sprawling from the southwest U.
We have a large cool pool of low to mid 70s with the need for some new numbers being cooler now than forecast in a handful of spots too. Upper ridge will begin to build into the area on Sunday, with frontal boundary just north of I-20 to begin lifting nwd and will leave low pops in northern sections of area on Sunday. Thereafter, pops to remain very low with upper ridge, with northern fringe of area enhancements dependent on evolution of ridge, as nw flow around topside may bring either diurnal overnight mcs near the area, or possible aftn development. Towards mid week, this upper ridge to begin to break down and southerly flow will deepen, allowing for isold to sct convection areawide.
Deep-layer vertical wind shear is expected to diminish just a bit as an elongated subtropical ridge to our south begins to expand northward, and this coupled with an early onset to convection and less time for destabilization should reduce the threat for strong-severe storms even further.
This activity ended by 730 PM with the stabilization of the air mass as high pressure builds east into the west coast. This high will begin a warming trend then merge with another building high in the desert southwest.
1011 PM EDT Sat Jul 1 2017 A weak cold front will move east of the area this evening. High pressure will briefly build over the region Sunday before another weak cold front drops across Lake Erie Sunday night. A weak cold front will continue to move across the forecast area this afternoon and evening. High pressure will briefly build over the region on Sunday. A weak backdoor cold front is forecast to drop across the lake Sunday Night.
611 PM CDT Sat Jul 1 2017 High pressure over the lower Missouri Valley will shift east tonight into Sunday allowing warmer air to spread back into the region for Sunday. Another strong upper trough will drop out of south central Canada during this same time pulling a cold front into the upper Midwest and northern plains tonight. A better chance of more widespread storms is expected Sunday afternoon and Sunday night with the stalled front in the north and trough through central Nebraska into Kansas.
1142 PM CDT Sat Jul 1 2017 High pressure will remain in control through Sunday morning with seasonable temperatures and dry weather. As the high shifts east on Sunday, moisture will steadily return back into the region.
Proton Previous Discussion: Backdoor cold front laying NW to SE across the northeast zones was keeping much cooler air off to our NE today. In the meantime, a weak upper ridge overhead will lead to light winds and clear skies tonight. Temperatures will be warmer than recent nights. Including the morning and midday long range model solutions into the forecast, there still may be some very slight chances for precip later in the period, but with the strength of the ridge and recent history over the region, it is fairly safe to assume that very little if anything will come from any impulses that do form within the ridge.
We have a large cool pool of low to mid 70s with the need for some new numbers being cooler now than forecast in a handful of spots too.
The marine layer deepened significantly last night as a weak upper trough tracked across northern California. Meanwhile, forecast models indicate that an upper ridge will gradually strengthen over California over the next few days.
718 PM EDT Sat Jul 1 2017 High pressure will extend from the Atlantic westward through the northern Gulf of Mexico through Independence Day. North of the ridge some troughing will be in the forecast area. Cloud cover overnight from decayed convection will keep temperatures in the low to mid 70s. Surface ridging will continue from the Atlantic westward through the northern Gulf of Mexico.
730 PM EDT Sat Jul 1 2017 A weak cold front will move east of the area this evening. High pressure will briefly build over the region Sunday before another weak cold front drops across Lake Erie Sunday night. A weak cold front will continue to move across the forecast area this afternoon and evening. High pressure will briefly build over the region on Sunday. A weak backdoor cold front is forecast to drop across the lake Sunday Night.
In the low to mid levels of the atmosphere, an Atlantic ridge of high pressure will extend across north central Florida overnight. In the upper levels of the atmosphere, an area of high pressure will be centered over the panhandle of Florida tonight.
618 PM CDT Sat Jul 1 2017 A low pressure system has moved from the Lake Winnipeg area into far northwest ontario through the afternoon and should continue a steady drift eastward to somewhere north of Thunder Bay by Sunday morning. Meanwhile a weak surface cold frontal boundary from this system has slipped southward through the Red River Valley and at 6pm was laying across northeast SD and extending up through an Alexandria to Grand Rapids MN line. High pressure will build into the area tonight into Sunday. Highs look to be a little warmer than those observed today. The main story through the new work week will be the much warmer temperatures as compared to the last week or two, with periodic precipitation chances.
1036 PM EDT Sat Jul 1 2017 High pressure will extend from the Atlantic westward through the northern Gulf of Mexico through Independence Day. North of the ridge some troughing will be in the forecast area. Cloud cover overnight from decayed convection will keep temperatures in the low to mid 70s. Surface ridging will continue from the Atlantic westward through the northern Gulf of Mexico.
859 PM CDT Sat Jul 1 2017 Showers and storms that developed in the High Plains earlier this afternoon and evening are expected to move across the Panhandles and west TX into western portions of the area overnight. Most models today are depicting an area of showers/thunderstorms developing across the high plains to our west and then propagating them east/southeast across mainly southwest Oklahoma and Red River valley late tonight into Sunday morning.
Isolated showers/thunderstorms continue this evening, primarily near the upper trough axis in eastern Oregon. The trough will be well to our east for dry weather on Sunday.
1143 PM CDT Sat Jul 1 2017 High pressure over the lower Missouri Valley will shift east tonight into Sunday allowing warmer air to spread back into the region for Sunday. Another strong upper trough will drop out of south central Canada during this same time pulling a cold front into the upper Midwest and northern plains tonight. A better chance of more widespread storms is expected Sunday afternoon and Sunday night with the stalled front in the north and trough through central Nebraska into Kansas.
1040 PM EDT Sat Jul 1 2017 A cold front passes early Sunday morning.
This area of lift weakens on the models for the afternoon but isolated tstorms may then develop mainly south of Madison and Milwaukee for late afternoon and early evening with the cold frontal passage. Quiet weather should then occur this evening, before cold front slides southeast into the area Sunday into Sunday evening. There may be a cap that holds things back in our area, thus the lower end PoPs.
Despite the cold front to the northwest, the loss of heating will mean lessing coverage of showers over the area so trended down the pops through the evening as well. A dying cold front is expected to make its way into the area from the north on Sunday, with some slight drying. A longwave trough will be in place across all of the eastern U.
/Issued 304 PM CDT Sat Jul 1 2017/ The isolated thunderstorms that developed in the vicinity of the old synoptic cold front over northeast Oklahoma and northwest Arkansas have pretty well faded. Sunday will see more isolated to scattered showers and thunderstorms even as the front moves to the north of the area as a warm front.
Not looking for much in the way of fog formation overnight and with very high dewpoints in the lower to mid 70s its going to be sticky overnight.
Chattanooga Airport, TN 71 88 71 89 / 40 50 30 30 Knoxville McGhee Tyson Airport, TN 68 86 68 87 / 40 30 20 20 Oak Ridge, TN 70 87 68 88 / 30 30 20 20 Tri Cities Airport, TN 66 84 64 85 / 50 30 20 20.
843 PM CDT Sun Oct 15 2017 Tonight-Early Mon Morning: It'll be a clear & chilly night as strong high pressure covers the southern half of the Great Plains. The onsetting southerly flow, albeit fairly light by our standards, will team with sunny skies to boost temperatures into the mid 70s in all areas with Southeast KS on the cooler end of the spectrum. Thu-Fri Night: Quiet weather continues for all areas as strong, broad upper ridge covers nearly all of the CONUS. upper-deck wave approaches & sends a cold front SE across KS.
737 PM EDT Sun Oct 15 2017 A strong cold front will push through the region tonight.
1034 PM EDT Sun Oct 15 2017 A cold front will cross the area Monday bringing chances of showers and isolated thunderstorms to the area. Behind the cold front high pressure will usher in much cooler and drier air through the end of the week. One more mild night on tap ahead of an approaching cold front. The main cold front is now moving into the central Appalachians, and into northwestern GA. The strong cold front will move through the region Monday, bringing rain to the area. Behind the front, high pressure will build into the forecast area along with much cooler and drier air.
739 PM EDT Sun Oct 15 2017 A cold front will cross the area Monday bringing chances of showers and isolated thunderstorms to the area. Behind the cold front high pressure will usher in much cooler and drier air through the end of the week. One more mild night on tap ahead of an approaching cold front. A strong cold front will move through the region Monday, bringing rain to the area. Behind the front, high pressure will build into the forecast area along with much cooler and drier air.
907 PM EDT Sun Oct 15 2017 After a cool start to the week, building high pressure will result in dry and gradually warming weather. The upper trough and associated cold advection will maintain mostly cloudy conditions and northern zone shower chances for Monday. Broad high pressure will maintain dry conditions with gradual warming through the period. Low-end VFR, to MVFR stratocu will persist in the wake of this evenings cold front as cold advection intensifies off the Lake- Region. Building high pressure will diminish wind and return VFR as Monday aftn progresses. No widespread restrictions are expected under high pressure.
743 PM CDT Sun Oct 15 2017 A progressive upper trough continues to slide east across the country this evening.
1025 PM EDT Sun Oct 15 2017 A strong cold front will move across the area later tonight.
1159 PM EDT Sun Oct 15 2017 A strong cold front will push through the region tonight.
Local radar imagery showed most of the diurnally enhanced convection over land moved west of the CWA prior to sunset, as the inverted trough axis/weakening vort center did likewise.
Temperatures were starting a few degrees warmer than anticipated and RH was also lower than expected. GAH PREVIOUS SHORT TERM DISCUSSION: Building high pressure over the desert SW and a strong NW flow aloft is bringing the expected warmer temperatures and drier conditions to the region.
628 PM CDT Sun Oct 15 2017 MVFR ceilings from ELD to LFK including MLU to persist through 16/04Z before quickly improving to VFR as dry air behind a cold front becomes established across the region. /issued 353 PM CDT Sun Oct 15 2017/ The cold front is still moving SE this afternoon with still the SE quarter or so of our area to work over. Dry weather will linger, but the models still eventually retrograde an upper low now out over the Gulf moving East by late week and then work inland around the upper ridge hanging over the SE U.
811 PM EDT Sun Oct 15 2017 A strong cold front with showers and gusty winds will continue moving through northeast Pennsylvania and the Catskills. Following the front will be cooler and breezy weather with even some lake effect rain showers in central New York.
732 PM EDT Sun Oct 15 2017 Cold front will move east of the area this evening. High pressure will build into southern Ohio by Monday afternoon. The high will then persist through the remainder of the week. Cold front is now through the area. Cold front as of 3pm was located from Cleveland to Mount Vernon. We will need to get a 5H trough east of the region to stop any of the lake effect showers that can develop across NE OH/NW PA late tonight into Monday morning. This trough looks like it will be east of the region by mid afternoon on Monday. High pressure will then increase its influence through Monday night. It will feel much cooler tonight into Monday.
904 PM CDT Sun Oct 15 2017 Cold front just movg across extreme se portion of cwa. /issued 628 PM CDT Sun Oct 15 2017/ MVFR ceilings from ELD to LFK including MLU to persist through 16/04Z before quickly improving to VFR as dry air behind a cold front becomes established across the region. /issued 353 PM CDT Sun Oct 15 2017/ The cold front is still moving SE this afternoon with still the SE quarter or so of our area to work over. Dry weather will linger, but the models still eventually retrograde an upper low now out over the Gulf moving East by late week and then work inland around the upper ridge hanging over the SE U.
1105 PM EDT Sun Oct 15 2017 A strong cold front with showers and gusty winds will move out of northeast Pennsylvania and the Catskills. Following the front will be cooler and breezy weather with even some lake effect rain showers in central New York.
Weak upper ridge will continue through Monday, resulting in mostly clear skies (scattered high clouds), light winds, and warmer temperatures.
However, sct-bkn mid level clouds will move ewd across srn WI after midnight due to warm advection on the back side of a passing upper trough. Forecast confidence is high: Clouds will decrease late afternoon into the evening as low pressure continues to pull away. High pressure will bring mostly sunny skies Monday, with high temps recovering to around normal.
756 PM EDT Sun Oct 15 2017 High pressure will shift offshore this afternoon. A cold front will cross the area late tonight through early Monday.
The associated cold front has exited MI. Pattern Forecast: By Monday night, a mid level wave and attendant surface reflection are expected to be crossing the northern Ontario/ Hudson Bay region with high pressure anchored over the Ohio Valley. As aforementioned low pressure over Ontario passes by to our north, occasionally gusty winds are expected Monday night.