Aikyam-Lab/Synoptic-Bench huggingface dataset:
1021 AM EST Sun Mar 4 2018 High pressure will ensure dry and seasonably cool conditions through Monday. High pressure will maintain dry weather today, with plenty of sunshine and seasonal temperatures. High pressure will slide eastward through the area on Monday, perhaps a few more clouds, particularly north and east, but the region will remain dry.
820 AM EST Sun Mar 4 2018 High pressure will continue to slowly build east into Pennsylvania today and Monday bringing dry weather.
Highs today will be in the low 70s, while lows tonight drop into the upper 40s and low 50s inland to mid 50s along the coast.
904 AM EST Sun Mar 4 2018 Ridging both surface and aloft across the southern Appalachians is producing clear sky across the area. Chattanooga Airport, TN 63 37 58 46 / 0 0 30 80 Knoxville McGhee Tyson Airport, TN 59 34 57 45 / 0 0 20 80 Oak Ridge, TN 59 34 57 44 / 0 0 20 70 Tri Cities Airport, TN 56 27 58 40 / 0 0 10 70.
Expect cooler temperatures and gusty afternoon winds especially east of Tucson today as a system moves north of the area.
525 AM CST Sun Mar 4 2018 Mid level ridging that has kept the dry weather over the area will slide to the east today as a rather vigorous mid level trough rotates out into the Plains. The closed mid level low slowly drifts into Iowa on Monday, with its associated cold front pushing through southern Missouri.
527 AM EST Sun Mar 4 2018 Upper air pattern consists of a 500 mb trough on the west coast, a closed low near James Bay and a closed low and trough off the east coast of the U. with a broad 500 mb ridge across the central U. The trough in the western U. moves into the central and northern plains by Mon morning while the ridge remains stationary and troughing remains on the east coast. 00Z soundings from KMPX, KGRB and KINL tell the story for this forecast as the low levels are extremely dry.
Elsewhere, clear skies across northwest Montana has led to very cold overnight temperatures, as well as periodic reductions in visibility due to freezing fog.
851 AM EST Sun Mar 4 2018 High pressure through Monday. Warm front Monday night.
After some morning light rain/snow showers, Another breezy, mild, and mainly dry day across the local area as low pressure deepens over the High Plains. Afternoon relative humidity values look to drop into the upper 20s along and east of the Mississippi River with the lowest values expected over central Wisconsin. Relative humidity values could fall into the lower 20s if more sunshine occurs.
A cold front crossing northern Arizona today will bring southwest wind gusts from 40 to 55 mph to areas along and north of the Mogollon Rim. There are also chances for rain and snow showers across the high terrain north of I 40.
511 AM CST Sun Mar 4 2018 High pressure will continue to dominate the weather over central IL through most of the day Sunday bringing clear skies.
As the afore-mentioned cyclone continues to strengthen as it lifts E/NE across Nebraska & the Dakotas, the attendant cold front, that will surge across most of KS late tonight, would cross the KS/MO border Mon morning. With the vicious surface cyclone occluding as it lifts almost due north, the NW winds that'll spread across KS will be strong enough for winds to easily reach advisory criteria. On Tue, the intense upper-deck cyclone will be driven SE across the Mid-MS Valley Tue afternoon. This would likewise drive the surface cyclone SE across MO. Wed-Fri: The remainder of the work-week will be quiet as broad ridging spreads across the Plains. Low clouds will decrease from west to east tonight as a cold front moves through.
/ISSUED 435 AM CST Sun Mar 4 2018/ Onshore flow this morning in response to lowering pressures over Colorado and extensive ridging from eastern Canada down through Louisiana.
As the moisture returns along the warm front, a few showers will dot the landscape Monday.
250 AM PST Sun Mar 4 2018 Drying and a little warmer for today.
The highest chances for accumulating rainfall will be mainly east of Highway 281. A potent upper low will be passing through the Central Plains Monday morning and this forcing will send a cold front south into Texas.
Moisture from the departing trough will leave a few showers over the central Idaho mountains today, with activity also possible across the Southwest Highlands and into Twin Falls county.
Tonight, cold front associated with the trough will move through in the evening. A wind max of around 55kt at 700mb is forecast to move west to east during the day, so will keep the high wind watch going with no changes. Despite cooler temperatures, another critical fire weather day also looks possible, especially south of Interstate 70, while further north humidity may not get low enough, however will keep watch going unchanged with inherent uncertainty.
Upper ridging and high pressure at the surface will continue to hold today and tonight, although will begin to lose influence over the area by dawn on Monday. Highs today should be similar to yesterday in the low and mid 50s. Most spots will only be able to drop into the low and mid 30s before the sky cover. Deeper moisture ahead of a cold front will only make slow progress eastward against our dry airmass in place. Highs Monday should mostly be in the low and mid 50s. Light rain associated with the warm conveyor belt of a mature cyclone will overspread the CWA on Monday night.
/issued 344 AM CST Sun Mar 4 2018/ Temperatures have actually warmed overnight into the low to mid 60s across southeast Texas where low clouds had developed as warmer air aloft overran the cooler air at the surface. The cloud cover was acting much like a blanket to keep things a bit warmer there. The trend toward warmer temperatures will continue today as southerly flow continues to increase moisture across the area beginning largely at first above 5K with the moisture depth in the column increasing this afternoon into Monday. An upper trough will move into the Rockies today resulting in low pressure developing over the high plains. Rain chances ratchet up late Monday and Monday night as the cold front sweeps through.
One last dry day will finish off the weekend today, and will be a great day to get outside and enjoy the low to mid 60s west of the Plateau. Upper ridge will slowly slide east during the day as the Plains/Midwest trough helps weaken the upper ridge. Still looking at a half inch of rain or less across the area, with the highest amounts west of I-65.
654 AM EST Sun Mar 4 2018 High pressure will continue to slowly build east into Pennsylvania today and Monday bringing dry weather.
These locations will see temperatures quickly jump into the low 80s. Overnight lows will range from the low 60s across the Heartland, with low temperatures in the mid to upper 50s across the Concho Valley and Big Country. (Monday through Sunday) An upper trough moving across the Central Plains will help drag a cold front southward into the area early Monday. Once the front an upper trough pass by, expect quiet weather through mid to late week. Overnight lows will drop into the lower to mid 30s with dry air in place, while afternoon highs will warm into the 60s and 70s.
1009 AM EST Sun Mar 4 2018 Elevated northerly winds will continue to maintain dry and cooler than normal conditions across the area today. 16 inches at Tampa, are among the lowest on record for these sites today.
A weak upper trough will move southeast across Western Washington today giving an increase in shower activity.
529 AM EST Sun Mar 4 2018 High pressure will ensure dry and seasonably cool conditions through Monday. High pressure will maintain dry weather today, with plenty of sunshine and seasonal temperatures. High pressure will slide eastward through the area on Monday, perhaps a few more clouds, particularly north and east, but the region will remain dry.
A Pacific low pressure system will move across the Great Basin early this morning, with chances for rain and snow showers ending over the southern Great Basin and northern Mohave County this morning.
No significant changes were made to today's forecast as high pressure persists across our area.
/Issued 347 AM EST Sun Mar 4 2018/ Early morning obs trends still look like the main area for below freezing will be confined to the far northeast, though some other spotty locations could radiate down for an hour or two near sunrise - just not widespread enough for justifying a warning. Majority of fcst period dominated by upper ridging and very dry thermal column. Monday morning should be slightly warmer than this morning so again not planning on any freeze products.
As the deep layer ridge axis moves across the Lower Mississippi River Valley tonight, an initial surge of warm advection and moisture will bring a chance of isolated to scattered rain showers to the west after midnight. Lows will be noticeably warmer, with temperatures generally in the 40s. Rain chances will be on the increase on Monday and especially Monday night as an upper-level trough moves from the Plains towards the Great Lakes. Well ahead of the cold front, scattered showers driven by mid-level warm advection, are possible across the northern half of the forecast area through the daylight hours on Monday.
639 AM EST Sun Mar 4 2018 A ridge will be along the East Coast today and Monday promoting dry weather.
917 AM EST Sun Mar 4 2018 High pressure will extend from the Great Lakes southward into the region through Monday night.
956 AM EST Sun Mar 4 2018 High pressure will remain across the area through Monday night.
The potent negatively tilted trough (one of two lobes in the larger scale system) will translate across Nebraska today into Monday.
Winds will remain gusty through the period given strong pressure gradient across the region ahead of a cold front that will move through after 12Z. Cold front will sweep through Monday morning with dry/gusty northwest winds developing Monday afternoon creating an elevated fire weather danger across northeast Oklahoma.
631 AM EST Sun Mar 4 2018 High pressure will slowly move east across the region through Monday.
Rain and snow showers will diminish today as high pressure starts to build into the area.
435 AM CST Sun Mar 4 2018 Onshore flow this morning in response to lowering pressures over Colorado and extensive ridging from eastern Canada down through Louisiana.
924 AM EST Sun Mar 4 2018 No major changes made to the previous forecast as high pressure keeps the pattern fairly persistent.
Upper ridge axis was exiting eastern Kansas early this morning as the large upper trough works its way into the Great Basin. Dewpoints however remain somewhat limited despite a third day of gusty south to southeast winds thanks to the expansive ridge to the east. Still expect a slow increase in precip chances from today into this evening as the upper trough crosses the Rockies late in the day and enters the northern Plains tonight. Highs still look several degrees cooler with the increased cloud but winds will again be strong from the south to southeast. Expect at least somewhat of a precip increase tonight as strong height falls occur, though Pacific cold front moving through ahead of best falls should limit its coverage and intensity.
Mostly MVFR will be in place for the next 24 hours at all sites with a cold front and low pressure wave crossing the region.
627 PM CDT Fri Apr 6 2018 Skies are clear across the region as the cold high pressure system continues to build in.
/issued 307 PM CDT Fri Apr 6 2018/ Skies are cloudy across much of the forecast area this afternoon with temperatures ranging from around 50 degrees to the lower 60s. The rain is ahead of a cold front which currently runs northeast Ohio through southeast Missouri and into northwest Texas. The cold front will continue to push slowly southeast tonight with more rain expected to develop ahead of the front this evening. By Saturday, the cold front will be just south of the forecast area so some light precipitation is expected in the morning. High pressure will settle into the region by Saturday night which allow skies to clear and temperatures to be quite cold for early April.
930 PM PDT Fri Apr 6 2018 A low pressure system will move through California on Saturday.
953 PM EDT Fri Apr 6 2018 Low pressure will move north of the region tonight through Saturday.
Skies are clear across the region as the cold high pressure system continues to build in.
617 PM CDT Fri Apr 6 2018 A cold front was pushing southeast toward the Ohio river at mid afternoon with brisk nw winds bringing in colder air. Temps have slipped into the low to mid 30s over the IL river valley while temps were 45-55F over southeast IL and slipping slowly there too. But temps will be cold with upper level trof over IL. Canadian high pressure to settle over IL during Sat night bringing a fair and cold night with light winds. Lows in the lower 20s central IL and mid 20s in southeast IL.
Chattanooga Airport, TN 47 48 33 58 / 90 50 10 10 Knoxville McGhee Tyson Airport, TN 42 44 28 55 / 90 60 10 10 Oak Ridge, TN 40 42 27 55 / 100 60 10 10 Tri Cities Airport, TN 39 41 24 50 / 90 80 20 10 TN.
Polar high pressure will then settle over the region Sat nt. Skies should clear this evening with the loss of sun and weakening of the low level lapse rates. Saturday should be a cool, but dry day, with highs in the low 30s.
Warmer than average temperatures will continue through the weekend with a passing system producing afternoon breezes, some clouds at times and a few showers over the White Mountains Saturday night.
1144 PM EDT Fri Apr 6 2018 A warm front will lift north across the area this evening producing a period of mixed light snow and rain. A cold front will sweep across the region overnight.
For OKC/OUN the highest probabilities are expected after 12Z.
857 PM CDT Fri Apr 6 2018 Freezing line has moved across portions of northern OK. Cold air will continue to move south across the area with freezing temperatures still expected across the fa by early Saturday so will continue with the freeze warning. However, a little bit of freezing rain/drizzle may have also occurred near the Kansas stateline before moving out. Freezing rain, sleet, and snow will all be possible in the fa with snow more likely in northern OK where cold air will be the deepest. Most accumulations will likely be on elevated surfaces which could impact bridges and overpasses making them slick but widespread travel problems are not anticipated at this time. Still expect freezing rain/drizzle, snow, and ice pellets to develop around 03-06Z for WWR/PNC.
1000 PM EDT Fri Apr 6 2018 Half an inch to an inch of snowfall accumulations in the lower elevations is expected. 1 to 3 inches in the ridges.
The main threat with storms moving south will be strong damaging wind gusts along the cold front through the remainder of this evening, but still cannot rule out an isolated quick spin-up tornado from deep East Texas over into west central Louisiana. Other updates were made to hourly temperatures and dew points as well as overnight lows to better reflect falling temperatures in wake of the cold front.
Cold front movg into area very slowly so gusty n-ne winds may increase very gradually from the north and west. The main threat with storms moving south will be strong damaging wind gusts along the cold front through the remainder of this evening, but still cannot rule out an isolated quick spin-up tornado from deep East Texas over into west central Louisiana. Other updates were made to hourly temperatures and dew points as well as overnight lows to better reflect falling temperatures in wake of the cold front.
A cold front has already passed through CKV, BNA, and MQY, and will pass CSV around 09Z.
Cold front is situated along the Ohio River as of this writing, and showers are already spreading northeastward into Middle Tennessee. Much colder air will advect into the mid state behind the front, so that by tomorrow morning, readings will be at or close to freezing most areas. Some of this precipitation will fall as snow or a snow/sleet mixture, and light accumulation is possible along the Highland Rim and near the KY/TN state line, mainly after 12Z. At this time, it appears that freezing rain is unlikely, despite the presence of a steep low- level inversion tomorrow morning that resembles a classic freezing rain sounding.
909 PM EDT Fri Apr 6 2018 Winds will veer southeasterly tonight and become southerly by morning as high pressure ridge axis slides southward. High pressure ridge will continue to retreat as a cool front moves into the Florida Panhandle late in the day.
Very active period is underway this afternoon as tstms have begun to rapidly fire along the warm frontal zone, which extends along the Red River in NE TX/SE OK, tailing back to the SE near TXK and ELD in south AR. Due to the very warm and unstable air mass in place south of the warm front, discrete supercells are a distinct possibility with the threat of isolated tornadoes. Deep layer is also around 40 kts, plenty sufficient for rotating mesocyclones. As the event further evolves this evening, the trend is expected to be toward more of a damaging wind threat as the cold front advances farther into the region with a developing QLCS which is likely to intensify closer to the I-20 corridor.
Still expect freezing rain/drizzle, snow, and ice pellets to develop around 03-06Z for WWR/PNC.
Conditions will continue to deteriorate through the night as the lower levels saturate.
705 PM CDT Fri Apr 6 2018 For the 00Z TAFs, gusty northeast winds behind the latest cold frontal passage will gradually diminish at the TAF sites late this evening and tonight. /Issued 344 PM CDT Fri Apr 6 2018/ Short/near term highlights include the strong cold front that passed through the area today with breezy northerly winds.
In the low levels of the atmosphere, an Atlantic ridge of high pressure will shift southward down the Florida peninsula overnight. In the mid levels of the atmosphere, an Atlantic ridge of high pressure will extend across Cuba tonight. In the upper levels of the atmosphere, a trough of low pressure will be located over the north central Gulf of Mexico overnight.
/issued 251 PM CDT Fri Apr 6 2018/ Dry and strong cold front currently in the Texas Panhandle will plunge quickly south tonight and should be in Mexico by sunrise Saturday. In addition freezing temperatures currently across the northern and central plains will likely infiltrate the extreme northern Permian Basin late tonight through mid Saturday morning despite abundant cloud cover and the wind.
905 PM CDT Fri Apr 6 2018 Near to sub-freezing temperatures underneath a weak warm nose aloft amidst continued lift/precipitation is resulting in areas of sleet, freezing rain and snow across southeast Kansas this evening. Brief transition from rain to snow will move across the area, but any sleet and/or light freezing rain should be light and transient.
1214 AM EDT Sat Apr 7 2018 Low pressure will move north of the region tonight through Saturday.
Very light accumulations of sleet and snow look to be the predominant precip types, though some freezing rain mixed in is very possible across parts of eastern Oklahoma as the colder air deepens.
738 PM EDT Fri Apr 6 2018 High pressure will move farther off the Southeast Coast ahead of an approaching front. Low pressure tracking eastward along the front will move into the forecast area Saturday. The low will lift northeast of the area Saturday night.
746 PM EDT Fri Apr 6 2018 High pressure will move farther off the Southeast Coast ahead of an approaching front. Low pressure tracking eastward along the front will move into the forecast area Saturday. The low will lift northeast of the area Saturday night.
154 AM EDT Wed Oct 18 2017 High pressure will remain over the area during the rest of the week. The dry pressure ridge to our northwest will dominate. Light winds and clear skies will support strong net radiational cooling tonight but the cooling will be limited somewhat with the ridge axis northwest of the region helping to maintain a little mixing. Expect low temperatures mainly in the lower 40s as indicated by the guidance consensus although temperatures in the normally colder locations will likely dip into the mid to upper 30s. The models show a significant temperature-dew point spread plus dew point temperatures remaining above freezing. We included just patchy frost in the forecast mainly in the northwest section closer to the ridge axis and the potential for a longer period of calm winds.
Winds will become more northerly tonight and into Wednesday as a cold front over northern Florida reaches the area, along with a very active weather pattern expected for Wednesday afternoon. model solutions depict an amplifying mid/upper lvl trough over the SE states, gradually migrating eastward. An associated sfc cold front boundary is pushing through the northern half of the Florida peninsula, bringing increasing chances of showers and a few thunderstorms across South Florida through Wednesday night, with better chances over the eastern half of the area.
257 AM CDT Wed Oct 18 2017 High pressure centered near Washington, DC this morning with an axis southwestward into east Texas. Upper troughs off the Atlantic coast and over the Canadian Prairies.
104 AM EDT Wed Oct 18 2017 High pressure will maintain dry weather and warmer than normal temperatures through the weekend.
619 AM EDT Wed Oct 18 2017 Another pleasant day is in store as high pressure lingers over the area.
536 AM EDT Wed Oct 18 2017 A weak cold front will cross the region early this morning. High pressure will build this afternoon and move east tonight. Another cold front will cross the region Thursday night.
254 AM CDT Wed Oct 18 2017 200 AM CDT High pressure is still stretched from central Texas northeast through the Ohio valley and into the mid Atlantic. A second and stronger low pressure system will slide by north of the Canadian border.
These is very dry air moving in behind the cold front with dew points dropping down into the teens. We should also see high clouds thicken up ahead of the warm front set to move in tomorrow. The warm front will push across today.
Highs today should once again reach the low 90s with heat indices in the upper 90s to around 100. The upper level pattern amplifies on Friday, with a weak perturbation scooting down the eastern flank of the building ridge axis Friday evening/night. The upper level ridge builds in for the weekend, keeping dry and warm conditions in place.
Friday daytime temperatures will be more than 10 degrees warmer than today for many locations. These showers and thunderstorms are projected to increase in coverage and intensity along a surface cold front that will march eastward throughout the evening and overnight.
Expect ceilings to be in the 1000-2000 ft range, with our southern terminals occasionally on the low end of that range. Upper level ridge remains just west of the area, with northerly flow aloft. Hard to cap northerly flow, especially on the periphery of the ridge so another complex of storms developing across the Panhandle this afternoon seems completely reasonable. Will go closer to the warmer NAM guidance and bring highs today into the mid and upper 90s.
Passing high clouds then prevail tonight and remainder of the period before arrival of a cold front late Friday. Closed low established over southern Saskatchewan and Manitoba will continue to spin down and shear apart as zonal flow across the northern tier persists for another 24 hours.
The leading edge of a cold front approaches the KS/NE border toward sunrise with some low clouds possible.
A mid to upper level ridge will begin to move into the area tonight from the west which will reduce our PoPs for the next couple of days and keep our heat indices elevated. Low temperatures will remain mild tonight and tomorrow night across the CWA with temperatures within the lower and upper 70s. With the ridge moving into the area, high temperatures tomorrow will be in the 90s with heat indices in the lower 100s across the area.
Temps will mainly be in the 80s with dewpoints in the lower 70s.