Aikyam-Lab/Synoptic-Bench huggingface dataset:
638 AM EST Sun Nov 29 2020 High pressure extending across the area will move off to the east today. As low pressure moves up the Appalachians, precipitation will spread into the region tonight with rain changing to snow on Monday.
Meanwhile, KBRO Doppler radar shows light rain and showers affecting the southeast corner of the inland portion of the BRO CWFA, with additional convection over the lower Texas coastal waters. The precipitation will continue this morning, but end for the afternoon, as a 500 mb trough associated with the cold front swings east through the Lone Star State. The dry weather will persist tonight and Monday in the wake of the trough with drier air moving in.
/issued 254 AM CST Sun Nov 29 2020/ Skies are mostly clear across the Mid-South early this morning with temperatures ranging from the lower 30s to mid 40s. Currently, low pressure was centered near the Texas Gulf coast. The low will track northeast today reaching southeast Louisiana this afternoon and then southwest Alabama by this evening. This low will start to spread rain into the Mid-South later this morning. Temperatures will be cooler than normal today with highs from the mid 40s to mid 50s. As the low moves away from the region, rain will continue this evening before ending from west to east. Temperatures will be chilly by Monday morning with lows in the low to mid 30s.
A closed low over Oklahoma is pulling Gulf moisture up and into the Tennessee Valley. As the upper low gets absorbed into a deepening trough Sunday night, winds will shift out of the northwest and colder air will start to seep into Middle Tennessee. The trough will slowly dig south, causing temperatures to fall throughout the day and keeping winds gusty around 15 to 20 knots out of the northwest. There is still some uncertainty as to when the freezing temperatures will catch up with the deeper moisture. However, models are in agreement that moisture will still be in place over the Plateau Monday evening when sub- freezing temperatures invade.
North winds will stay elevated within the lower Colorado River today with gusts around 30 mph around Laughlin/Bullhead City area.
529 AM CST Sun Nov 29 2020 A strong cold front moved across the local area overnight. with most locations above freezing as of 3 AM. with a large upper level low expected to cut off across the plains towards the middle of the week.
320 AM CST Sun Nov 29 2020 06Z surface data has the cold front from the arrowhead of Minnesota into southern Nebraska. Dry but colder conditions will be seen today and tonight as a cold front sweeps through the area. Winds will increase behind the cold front and be sustained at 20 to 30 mph with gusts to 35 mph today. The wind and chilly morning temps will drop AM wind chills into the single digits and lower teens -- brrr! Ambient temps will only climb into the lower 30s during the afternoon.
The upper level low that brought the rain yesterday has now moved to our east and will push a cold front through the area today. Strong cold air advection and a tightening pressure gradient along the Guadalupe Mountains will create strong gap winds tonight and have upgraded the High Wind Watch to a warning.
351 AM CST Sun Nov 29 2020 A closed upper low moving into far southwest Oklahoma at this time will move east along the Red River today. The more widespread rain will be moving east of the area early this morning, but scattered showers will remain possible through much of the day as the upper low passes by. A strong cold front will sweep across the area this afternoon and early evening, with gusty northerly winds developing in its wake. The coldest air of the season to date will follow the cold front for tonight through Monday night.
A large closed off upper level low pressure system was centered over southwest Oklahoma this morning. The upper level low weakens through the day and exits east by this evening.
This Low will track through the Tennessee Valley, before lifting through the eastern Ohio Valley region.
526 AM CST Sun Nov 29 2020 A surface cold front moved southeast through Nebraska this morning. CAA associated with this front at H850 will bring temperatures to around -7 degrees Celsius, which translates to high temperatures in the upper 30s in the Sandhills and the low 40s in southwest Nebraska. Cool temperatures during the day and mostly clear skies on Sunday night mean that lows will dip into the low teens across the area, possibly reaching the single digits in parts of southwest Nebraska. High pressure will quickly build into the upper and central Great Plains after the front passes. RH will decrease once again into the low 20s for most of the area and the upper teens in the Panhandle.
651 AM CST Sun Nov 29 2020 A cold front continues to push through the forecast area early this morning. Temperatures will struggle to climb much above freezing, with wind chills in the teens to 20s. Trended towards the lower guidance values.
321 AM MST Sun Nov 29 2020 A cold front has moved across nern CO, early this morning, with gusty north winds behind it. Monday will likely be the warmest day of the week as a brief period of mid-level ridging builds in. Surface temperatures should reach the low to mid 50s for much of the plains, despite the presence of an inversion a few hundred feet above ground level.
As an upper low, currently located over CDS, departs to the east, robust surface pressure rises will occur in the Panhandles, with guidance now pointing at rises on the order of 1 to 2 mb/hr. Have leaned toward the higher end of consensus blends during the late mid to late morning hours, when surface pressure rises are progged to maximize.
318 AM CST Sun Nov 29 2020 A surface cold front moved southeast through Nebraska this morning. CAA associated with this front at H850 will bring temperatures to around -7 degrees Celsius, which translates to high temperatures in the upper 30s in the Sandhills and the low 40s in southwest Nebraska. Cool temperatures during the day and mostly clear skies on Sunday night mean that lows will dip into the low teens across the area, possibly reaching the single digits in parts of southwest Nebraska. High pressure will quickly build into the upper and central Great Plains after the front passes. RH will decrease once again into the low 20s for most of the area and the upper teens in the Panhandle.
Satellite imagery showed an upper low tracking east over western Oklahoma in the vicinity of Clinton early this morning. Areas of light rain continue to spread north into south central and portions of southwest Kansas around the north side of the upper low. An associated cold front was moving south into southern Nebraska and northeast Colorado.
718 AM CST Sun Nov 29 2020 Dense freezing fog has developed across Lea county and portions of the western and central Permian Basin this morning. A freezing fog advisory has been issued as there could be some slick spots on the road with temperatures near 30 degrees. The upper level low that brought the rain yesterday has now moved to our east and will push a cold front through the area today. Strong cold air advection and a tightening pressure gradient along the Guadalupe Mountains will create strong gap winds tonight and have upgraded the High Wind Watch to a warning.
327 AM MST Sun Nov 29 2020 Upper ridging over the western U.
Otherwise expect dry and cooler conditions today. Ridge of high pressure builds in later today and through tonight. Overall ridging will start and end the week, with a brief upper level low cooling temperatures and bringing scattered snow showers mid week. Upper level ridge will continue across the area for Monday returning mild temperatures and continuing dry conditions.
The clouds will be spilling over a ridge to our west and should only serve to make the afternoon a little gray for most of northwest and west central Montana. A cold front is on the way for Monday afternoon and evening.
Upper ridging returns to the area for the next couple days, and as low pressure moves south lee-side of the Rockies and into the area, another strong pressure gradient will set up over the Beartooth Mountains to bring about another round of high winds to their foothills and the Livingston area.
Isold TSRA wl be psbl cntrl and south 15Z-21Z as a center of low pressure moves across the area. This low will shift east this evng ending the -RA but IFR/MVFR CIGs wl continue tonight. Early morning water vapor imagery/RAP analysis showed the circulation around a closed low over Oklahoma. Models are in good agreement that the closed low will shift east today and open up over southern Arkansas before tracking northeast tonight as it gets absorbed into a deepening northern stream trough.
349 AM MST Sun Nov 29 2020 Overall mild flow pattern will persist through most of the period, supporting mostly above normal temps and mainly dry weather, as a mean western NOAM ridge generally remains in place.
927 AM EST Sun Nov 29 2020 High pressure extending across the area will move off to the east today. As low pressure moves up the Appalachians, precipitation will spread into the region tonight with rain changing to snow on Monday.
Pretty quiet for most of this forecast until later on Sunday when a cold front comes through and some rain/snow break out behind it with some lake enhancement. A dome of high pressure will begin to move into the area. Areas furthest inland and over the higher terrain can expect temperatures for the afternoon high to not reach more than the low to mid 20s, with lakeshore areas seeing temperatures moderated to near the freezing mark.
336 AM CST Sun Nov 29 2020 A strong cold front moved across the local area overnight. with most locations above freezing as of 3 AM. with a large upper level low expected to cut off across the plains towards the middle of the week.
Dry and stable high pressure aloft will move east across the forecast area through tonight.
536 AM CST Sun Nov 29 2020 Upper low will continue to track eastward across the southern Plains today. The surface cold front associated with the northern stream upper trof moving across the northern Plains/Upper Midwest will also drop south across the area today.
A weak ridge of high pressure remains in control over the region with a cold an dry air mass locked in place. 24 hour temperature trends show little changes from this time yesterday and freezing conditions will be fairly widespread across the lower elevations again this morning. While larger cities such as Fresno and Bakersfield will stay just above the freezing mark due to the heat island effect, some rural areas should drop into the upper 20s again by sunrise. A s/wv trough will move over the Pacific Northwest on Monday but the only impact for central CA will be some passing high clouds.
06Z surface data has the cold front from the arrowhead of Minnesota into southern Nebraska. Dry but colder conditions will be seen today and tonight as a cold front sweeps through the area. Winds will increase behind the cold front and be sustained at 20 to 30 mph with gusts to 35 mph today. The wind and chilly morning temps will drop AM wind chills into the single digits and lower teens -- brrr! Ambient temps will only climb into the lower 30s during the afternoon.
A low and mid level area of high pressure, (below 700 mb) located over South Florida and our region will hold firm through tonight, before exiting eastward into the Atlantic Ocean.
530 AM CST Sun Nov 29 2020 (Today and tonight) The upper low spinning over western Oklahoma early this morning will continue to drift east today. This afternoon, a strong cold front will sweep in from the northwest, bringing much drier, cooler, and windy conditions behind it. In addition to bringing the cooler and windy conditions, the front will also bring a definitive end to the precipitation.
Ridge of high pressure builds in later today and through tonight. Overall ridging will start and end the week, with a brief upper level low cooling temperatures and bringing scattered snow showers mid week. Upper level ridge will continue across the area for Monday returning mild temperatures and continuing dry conditions.
The chilly nights will lead to patchy frost and freezing conditions in the wind sheltered valleys, while days trend a little warmer.
419 AM EST Sun Nov 29 2020 High pressure extending across the area will move off to the east today. As low pressure moves up the Appalachians, precipitation will spread into the region tonight with rain changing to snow on Monday.
Bottom Line: Showers tapering off this morning, followed by a breezy to windy Sunday and cooler conditions persisting through the period. Rain and/or drizzle will come to an end by early to mid morning; however, clouds will stick around a bit longer as an upper-level closed low moves into the MS Valley from the TX Panhandle. Breezy to windy conditions are expected today as pressure gradient tightens ahead of another dry cold front moving through north-central TX.
403 AM CST Sun Nov 29 2020 At 345 AM, the surface cold front was located roughly from Duluth to the western Twin Cities Metro, to Omaha. High pressure will build in tonight and allow winds to nearly decouple late tonight over western Minnesota. The stretch of cooler and dry weather continues this period with no significant impacts expected. Expect seasonable high temperatures in the 30s and low temperatures in the 20s as the upper level pattern supports cooler air from Canada moving in the Upper Midwest.
The eastward progression of a nearby cold front and the passage of a feature in the middle layers of the atmosphere will lead to improved conditions later this morning and through the overnight hours. Meanwhile, KBRO Doppler radar shows light rain and showers affecting the southeast corner of the inland portion of the BRO CWFA, with additional convection over the lower Texas coastal waters. The precipitation will continue this morning, but end for the afternoon, as a 500 mb trough associated with the cold front swings east through the Lone Star State. The dry weather will persist tonight and Monday in the wake of the trough with drier air moving in.
Early morning water vapor imagery/RAP analysis showed the circulation around a closed low over Oklahoma. Models are in good agreement that the closed low will shift east today and open up over southern Arkansas before tracking northeast tonight as it gets absorbed into a deepening northern stream trough.
A cold front will result in clearing skies and gust northwest winds by later this afternoon, with wind likely remaining gusty much of Sunday night. /Issued 351 AM CST Sun Nov 29 2020/ A closed upper low moving into far southwest Oklahoma at this time will move east along the Red River today. The more widespread rain will be moving east of the area early this morning, but scattered showers will remain possible through much of the day as the upper low passes by. A strong cold front will sweep across the area this afternoon and early evening, with gusty northerly winds developing in its wake. The coldest air of the season to date will follow the cold front for tonight through Monday night.
These higher winds are in association with a cold front passage that will clear the area by mid morning. Areas of MVFR CIGS and stronger northwesterly winds at 20g35kts are quickly moving into and across far northwest MN attm, and should fill in along and north of the Highway 2 corridor /GFK- FSE-BJI/ through 07z.
144 PM MST Sun Nov 29 2020 Current surface map places high pressure across western South Dakota.
The rest of the region outside of the lower Colorado River Valley will see generally light winds and plenty of sunshine. North winds will stay elevated within the lower Colorado River today with gusts around 30 mph around Laughlin/Bullhead City area.
1134 AM CST Sun Nov 29 2020 A surface cold front moved southeast through Nebraska this morning. CAA associated with this front at H850 will bring temperatures to around -7 degrees Celsius, which translates to high temperatures in the upper 30s in the Sandhills and the low 40s in southwest Nebraska. Cool temperatures during the day and mostly clear skies on Sunday night mean that lows will dip into the low teens across the area, possibly reaching the single digits in parts of southwest Nebraska. High pressure will quickly build into the upper and central Great Plains after the front passes. RH will decrease once again into the low 20s for most of the area and the upper teens in the Panhandle.
At the surface, cold front has moved through KS with strong north winds overspreading the area. By Mon morning, deep upper trough will extend from the Western Great Lakes region to the Mid Mississippi Valley leaving strong northwest flow in place across the Plains. As the trough pushes off to the east this evening, the winds will die off at the surface but not at the low levels. This will abate toward morning as the ridge begins to encroach on the region. Once this occurs, the low levels winds will decrease and lighter winds will develop to accompany the VFR conditions for the remainder of the TAF period.
1119 AM CST Sun Nov 29 2020 A strong cold front moved across the local area overnight. with most locations above freezing as of 3 AM. with a large upper level low expected to cut off across the plains towards the middle of the week.
256 PM CST Sun Nov 29 2020 A cold front has moved through the CWA today bringing blustery NW winds gusting up to around 40 MPH at times. Monday night, high pressure will provide the area with light NW winds and clear skies.
A ridge over the area is allowing stagnant conditions to continue. Winds in the valleys will be light, but above the inversions, dry easterly flow aloft will keep the ridges clear and relatively warm. The ridge will move out to the east later today. An upper level trough will move onshore late tonight into Monday, and it will push a front onshore around that time.
1115 AM CST Sun Nov 29 2020 A large closed off upper level low pressure system was centered over southwest Oklahoma this morning. The upper level low weakens through the day and exits east by this evening.
Scattered rain showers will continue across eastern Oklahoma and western Arkansas for the next several hours in association with an upper level low currently centered across southeastern Oklahoma. A cold front will enter northeastern Oklahoma early this afternoon which will allow the showers to clear. VFR conditions will prevail for most locations throughout the TAF period with the possibility of seeing some brief MVFR conditions for MLC or FSM with passage of the upper low directly overhead. An upper level low pressure center is currently tracking along the Red River which is providing the area with scattered light rain showers. A cold front will move through the region this afternoon bringing clearing skies, gusty northerly winds, and cooling temperatures for this afternoon and evening.
1159 AM CST Sun Nov 29 2020 At 345 AM, the surface cold front was located roughly from Duluth to the western Twin Cities Metro, to Omaha. High pressure will build in tonight and allow winds to nearly decouple late tonight over western Minnesota. The stretch of cooler and dry weather continues this period with no significant impacts expected. Expect seasonable high temperatures in the 30s and low temperatures in the 20s as the upper level pattern supports cooler air from Canada moving in the Upper Midwest. High pressure will settle in for Monday with light winds and clear skies expected. High pressure will settle in for Monday with light winds and clear skies expected.
There'll be nothing more than subtle changes to our weather pattern during the next 24 hours as a weak short wave trough treks eastward through the Pacific Northwest. The most will get out of this trough is some high cloudiness tonight into Monday and a transition to an onshore flow pattern, albeit briefly, Monday into Monday night. Minimum temperatures tonight won't be quite as low as past nights, but there will still be frost and sub freezing temperatures in many rural locations of the San Joaquin Valley around daybreak Monday.
(This evening through Monday) Stratus behind a cold front was holding down temperatures in the mid 40s to lower 50s this afternoon.
246 PM CST Sun Nov 29 2020 The dense fog from earlier this morning has cleared out of the area due to a cold front moving in from the north. The departing upper low which brought us rain yesterday will join up with a deeper trof over the Upper Midwest. We are still expecting a bitter cold morning with lows in the low to mid 20s. Highs tomorrow will top out 10 to 15 degrees below normal in the lower 50s.
A large, chilly high pressure area will then encompass the western Great Plains tonight through early Monday, ans this will set the stage for a very cold night, particularly across west central Kansas where lows of +9 to +12F are forecast as very dry air continues to invade with persistent subsidence and downslope component to the lower tropospheric wind. There likely won't be a cloud in the sky given the degree of subsidence in between the departing trough and the upstream ridge axis. A weak leeside trough will slowly form across eastern Colorado, and the slowly increasing pressure gradient will yield an increase in southwest wind later in the afternoon, mainly across the western counties closer to the Colorado border.
Still think we're on the 1-2 inch track, but latest guidance is suggesting the higher amounts are shifting to the eastern half of the mid-state overnight.
Temperatures have warmed into the low to mid 40s across the entire area with rain as the main precipitation type. /issued 254 AM CST Sun Nov 29 2020/ Skies are mostly clear across the Mid-South early this morning with temperatures ranging from the lower 30s to mid 40s. Currently, low pressure was centered near the Texas Gulf coast. The low will track northeast today reaching southeast Louisiana this afternoon and then southwest Alabama by this evening. This low will start to spread rain into the Mid-South later this morning. Temperatures will be cooler than normal today with highs from the mid 40s to mid 50s. As the low moves away from the region, rain will continue this evening before ending from west to east. Temperatures will be chilly by Monday morning with lows in the low to mid 30s.
Gusty north winds will linger through the afternoon behind a strong cold front. /issued 718 AM CST Sun Nov 29 2020/ Dense freezing fog has developed across Lea county and portions of the western and central Permian Basin this morning. A freezing fog advisory has been issued as there could be some slick spots on the road with temperatures near 30 degrees. The upper level low that brought the rain yesterday has now moved to our east and will push a cold front through the area today. Strong cold air advection and a tightening pressure gradient along the Guadalupe Mountains will create strong gap winds tonight and have upgraded the High Wind Watch to a warning.
SHORT TERM (Now through Monday Night): High pressure spilling south from northern locations will settle over the area in the short term. Cooler weather will prevail.
The 500mb short wave trough continues to churn across the Ouachita and Ozark Mountains this afternoon. On it's heels, a cold front continues to surge southward across the region, with winds continuing to increase through the afternoon. Overnight, steep surface ridging will set up across the plains with stout northwest flow persisting across the lower Missouri Valley. Combined with breezy north winds, 10 to 15 mph, wind chills will tumble into the lower teens by Monday morning. Temperatures will reach the low to mid 40s for highs.
207 PM CST Sun Nov 29 2020 Post cold frontal air mass currently over the region will linger breezy northwest winds as well as clouds and flurries within Minnesota until around sunset. Temps remain cooler in the 20s for Minnesota locations like LOW.