Aikyam-Lab/Synoptic-Bench huggingface dataset:
733 PM EST Wed Nov 25 2020 High pressure over the western Atlantic continues to extend across the Florida peninsula. A cold front will approach the western Florida panhandle tonight but will stall well north of the forecast area on Thursday.
318 PM CST Wed Nov 25 2020 High pressure will exit the area to the east by this evening ahead of an approaching frontal boundary. High pressure will begin to nose its way back over the area Thursday morning before another weak front drops in from the northwest. This front tracks across the CWA Thursday evening, with high pressure then building in more solidly over the area during the overnight hours. Low temperatures tonight will be in the lower to mid 20s, with highs on Thursday in the upper 30s to the mid 40s.
418 PM CST Wed Nov 25 2020 Short term - today thru tomorrow night The line of tstorms associated with today's cold front has finally cleared out of the Acadiana region with a few showers over the coastal expect to move out within the next hour.
Latest satellite imagery shows an upper trough moving east away from the West Coast. Lingering post-trough showers and cloud cover are expected to quickly dissipate this evening.
Radar imagery this evening shows convection has struggled to develop along the cold front which currently stretches from Portland to northwest Nashville to Centerville. However, winds will continue to subside with time as the main area of low pressure moves further away from our region this evening.
High pressure will exit the area to the east by this evening ahead of an approaching frontal boundary. High pressure will begin to nose its way back over the area Thursday morning before another weak front drops in from the northwest. This front tracks across the CWA Thursday evening, with high pressure then building in more solidly over the area during the overnight hours. Low temperatures tonight will be in the lower to mid 20s, with highs on Thursday in the upper 30s to the mid 40s.
/Issued 320 PM CST Wed Nov 25 2020/ Cloud cover continues to lift east northeast across far Northeast Oklahoma and Northwest Arkansas this afternoon as the upper low that moves through the Plains last night pushes off to the northeast. a low pressure system is progged to drop southeast into the Desert Southwest and become cut off during the day Thursday. while the northern stream flow continues its east southeast push with a weak cold front through the CWA Thursday night.
A cold front entering the region from the north will bring northerly winds BTWN 15 to 25 kts AFT 26/12Z, which should slowly start to decrease towards sunset Thanksgiving evening as surface winds decouple from aloft. A weak cold front will turn winds to the north tomorrow with a bit of a breeze.
To argue against fog is that there will be warm advection and winds will be from the south to southwest as a weak cold front moves through the area tonight.
Weak surface cold front is slowly moving through KARA and will continue to move slowly eastward then stall later tonight and Thursday morning. /issued 418 PM CST Wed Nov 25 2020/ Short term - today thru tomorrow night The line of tstorms associated with today's cold front has finally cleared out of the Acadiana region with a few showers over the coastal expect to move out within the next hour.
In the mean time cloudiness will increase over the lower RGV tonight. Moisture will remain in place over the lower RGV, but there is not a strong signal for fog tonight, rather, a better signal for patchy fog appears tomorrow night when there is a return flow. It will be a bit cooler tonight, upper 50s across the Ranchlands to the upper 60s for the lower RGV.
201 PM MST Wed Nov 25 2020 Positively tilted trough extends from the Canadian Rockies to the Great Basin this evening, then splits in two on Thursday. Dry forecast for tonight, although northern mountains will start to see POPs creep upward toward as upslope flow takes advantage of a little bit of moisture moving in with the upper trough. On the plains on Thursday, a weak surge of cooler northerly flow behind the weak lee side trough noted by previous forecaster will spread across the northeast plains. Trough axis will continue pushing southward Thursday night.
A cold front continues to move through our region, and light snow showers continue tonight in northern Elko, and around Great Basin NP. Thanksgiving Day will be a cool and dry holiday, but a building ridge helps to keep our weather conditions quiet while allowing for a âwarm upâ of afternoon highs.
410 PM MST Wed Nov 25 2020 Current surface map places cold front across eastern Montana. Splitting upper level trof crosses the Rockies tonight as cold front swings through the Dakotas. Duration may be long enough for a light dusting of snow in the higher elevations. Northern portion of upper trof crosses the Dakotas Thursday, with cooler/breezy conditions. with flat ridging ahead of fast moving trofs. A cold front will move quickly across the area late today and this evening, bringing a period of breezy northwesterly winds for a few hours behind it.
234 PM MST Wed Nov 25 2020 Scattered snow showers will slowly diminish across the region this evening, as a Pacific cold front exits the area.
Not much change to the short term except to increase winds more over the Sierra ridges and Lake Tahoe tonight into tomorrow. Model suite is showing 40-50 kts at ridge level from the northeast, which should result in gusts up to 75-80 mph over the Sierra Crest.
As high pressure settles over the state Wed night, winds will settle and a stable bndry layer will lkly promote widespread areas of FG in the predawn hours of Thanksgiving day.
Low clouds will generally remain across the region on Thanksgiving Day, though clouds may break up a bit in the late afternoon after a cold front passes through during the day. Upper level cyclonic vorticity advection associated with an upper level trough will create enough lift to squeeze out some light snow showers along and near the cold front as it passes through during the morning and early afternoon. While snow is expected to be the primary precipitation type, there is a slight possibility for a bit of light freezing drizzle to mix in at times. High temperatures will be near or a few degrees above freezing Thanksgiving Day.
Winds will switch to the north after sunrise and strengthen behind the low this afternoon to 15-25 mph. Overall temperatures should reach into the lower 50s for highs with the exception of Stafford and northern Pratt county being a few degrees cooler from the residual snowpack.
1126 PM CST Wed Nov 25 2020 Comparison of short range models to satellite trends for cloud cover shows models are clearing the low clouds out too quickly. Fog development is a possibility given the combination of recent rainfall, light winds, and radiational cooling west of the low clouds mainly for locations along and east of the Kansas turnpike. Any residual fog should lift by late tomorrow morning with a cold front pushing south, and above normal temperatures south of the front for Thanksgiving Day.
812 PM MST Wed Nov 25 2020 Cold front is moving east across western SD at this time, with a period of breezy northwest winds behind it in many areas. Current surface map places cold front across eastern Montana. Splitting upper level trof crosses the Rockies tonight as cold front swings through the Dakotas. Duration may be long enough for a light dusting of snow in the higher elevations. Northern portion of upper trof crosses the Dakotas Thursday, with cooler/breezy conditions. with flat ridging ahead of fast moving trofs. A cold front will move quickly across the area late today and this evening, bringing a period of breezy northwesterly winds for a few hours behind it.
325 AM EST Thu Nov 26 2020 Low pressure continues to spin northeast early on this Thanksgiving and is currently over western Lake Erie. The low clouds are expected to hang around for much of the day. The low level moisture may be just deep enough to squeeze out some brief drizzle over southern IN and far northern KY early this morning. Cloud bases are plenty low enough, but the low level inversion will be fairly low at around 3 kft. Temperatures won't move much with highs in the low to mid 50s.
Quiet weather will continue into tonight with slightly warmer conditions. An upper level area of low pressure will close off and track along the Interstate 20 corridor.
Clearing is occurring, to the west of the ridge axis, where southwest winds aloft are found. Models all suggest the clearing pace will increase through the day, as the ridge axis shifts eastward and generally flattens ahead of another weak front/trof expected to move through tonight.
Aloft, our region was in southwest flow ahead of an approaching upper trough across the northern Rockies/plains. although upstream across WY and western SD, additional low/mid clouds were advancing southeast behind a cold front. Despite the passage of the front, temperatures are still expected to be several degrees above normal for highs today with readings mainly in the upper 40s to around 50F (normal highs average in the low 40s).
The upper trough continues its approach and some cloudiness may reach northeast Colorado by morning. Positively tilted trough extends from the Canadian Rockies to the Great Basin this evening, then splits in two on Thursday. Dry forecast for tonight, although northern mountains will start to see POPs creep upward toward as upslope flow takes advantage of a little bit of moisture moving in with the upper trough. On the plains on Thursday, a weak surge of cooler northerly flow behind the weak lee side trough noted by previous forecaster will spread across the northeast plains. Trough axis will continue pushing southward Thursday night.
1022 PM MST Wed Nov 25 2020 Cold front is moving east across western SD at this time, with a period of breezy northwest winds behind it in many areas. Current surface map places cold front across eastern Montana. Splitting upper level trof crosses the Rockies tonight as cold front swings through the Dakotas. Duration may be long enough for a light dusting of snow in the higher elevations. Northern portion of upper trof crosses the Dakotas Thursday, with cooler/breezy conditions. with flat ridging ahead of fast moving trofs. A cold front will move east of the area overnight, with northwesterly winds decreasing across the western SD plains late tonight.
1241 AM EST Thu Nov 26 2020 High pressure moving from the west is forecast to provide drier weather conditions on Thanksgiving.
928 PM CST Wed Nov 25 2020 The low clouds in the wake of yesterday's storm system have all but completely cleared the forecast area, hanging on across roughly the northern half of Carroll County.
1043 PM CST Wed Nov 25 2020 Low stratus remains stout across the region this afternoon and will not budge much through this evening, at least not until a cold front arrives from the Dakotas around daybreak Thanksgiving morning. Only issue may be overnight fog that develops ahead of the approaching cold front, particularly in the pre-dawn hours for mainly the southern half of the WFO MPX coverage area, with such plentiful moisture trapped under the nightly inversion.
1032 PM EST Wed Nov 25 2020 Currently - A pressure ridge extends from off the Atlantic Coast, across Florida and into the Gulf of Mexico. Short Term Update - The parent high of the previously mentioned ridge will continue to lift out to the northeast and the trailing ridge will weaken some more. East to east southeast winds will continue to gradually trend downwards overnight as the ridge across Florida weakens.
Weak surface cold front is just about stalled out east of the KARA terminal over lower south central Louisiana. /issued 418 PM CST Wed Nov 25 2020/ Short term - today thru tomorrow night The line of tstorms associated with today's cold front has finally cleared out of the Acadiana region with a few showers over the coastal expect to move out within the next hour.
809 PM MST Wed Nov 25 2020 Scattered snow showers will slowly diminish across the region this evening, as a Pacific cold front exits the area.
954 PM CST Wed Nov 25 2020 For late evening update have adjusted precipitation chances a bit with the progression of the cold front, which is now orientated from near Rollette to east of Hettinger. Tonight this cold front will move across the forecast area. Although the atmosphere is relatively dry and the best forcing will remain over southern Canada, there could be an isolated rain or snow shower along the cold front. On Thanksgiving day, the upper level trough lifts northeast and the surface cold front moves into the upper Great Lakes. Highs on Thanksgiving day will range from the lower 30s north to lower 40s south.
Upper low, currently moving across Lake Erie, will continue to move away from the area, ending any precipitation. Some clearing will start to arrive late in the day into tonight as high pressure moves in, but afraid that trapped boundary layer moisture could keep stratus around longer.
Cold front approaching from north at end of forecast period, but falling just outside 06z window. /issued 133 PM CST Wed Nov 25 2020/ As the upper trough that brought the strong wind to the region moves off to the east high pressure will build in from the west.
/Issued 928 PM CST Wed Nov 25 2020/ The low clouds in the wake of yesterday's storm system have all but completely cleared the forecast area, hanging on across roughly the northern half of Carroll County.
Winds will be generally out of the south AOB 10 kts until 26/12Z, before a cold front moves through the region. A weak cold front will turn winds to the north tomorrow with a bit of a breeze.
The stubborn stratus deck is eroding nicely along the western fringes as drier air in the lower levels is being advected in, but there is another chance for increased cloud coverage starting in the late morning. This will occur behind the cold front, which is currently making its way through central SD and is expected to make it through our eastern counties by late morning. As there will be periods of sunshine, expecting temperatures to warm into the lower 40s for most of the area. Expect winds to calm down after sunset, with overnight lows in the lower to mid 20s.
Excellent weather is on tap for the Mid-South this Thanksgiving Day as high pressure moves into the region.
High temperatures will average in the lower 80s with overnight lows mainly in the lower to mid 70s.
Cold front passes tonight and a lack of moisture along with weak lift expected to keep any precip chances below mentionable values. Slightly cooler temps expected Friday while rain chances remain focused just south of the forecast area.
Latest WV satellite shows west-southwesterly flow aloft over the Panhandles ahead of a longwave trough over NV. At the surface, a lee trough has developed and is located north-south over the central Panhandles while a weak cold front moves south through NE CO and W NE. Expect temperatures to be a touch cooler than yesterday given the shift to northerly winds. Guidance in robust agreement that the NV upper trough will have progressed and deepened to an upper low over NM by Friday afternoon, but strong enough forcing for ascent to overcome the relatively dry air mass does not look to arrive before the evening hours.
Low pressure continues to spin northeast early on this Thanksgiving and is currently over western Lake Erie. The low clouds are expected to hang around for much of the day. The low level moisture may be just deep enough to squeeze out some brief drizzle over southern IN and far northern KY early this morning. Cloud bases are plenty low enough, but the low level inversion will be fairly low at around 3 kft. Temperatures won't move much with highs in the low to mid 50s.
The hole in the overcast near the Minnesota River that was likely the result of downslope from the Buffalo Ridge has since filled back in. A second front will come through tonight and a shot of cooler air will keep highs in the 30s for Friday.
-Dry weather expected for Thanksgiving Day and black Friday! The low stratus deck has finally moved farther to the east, still covering our NE counties, and will continue this track until finally clearing the status by late morning. By the evening, a cold front will make its way into our forecast area.
310 AM CST Thu Nov 26 2020 Satellite and radar already indicate showers developing from the Central Texas coast into the outer waters off the Louisiana coast in the developing WAA regime ahead of a deepening trough across the western states. The front will remain in the area with the approaching upper low with shower and thunderstorm chances remaining high through the weekend.
Dry weather with warm temperatures for this time of year will occur Friday as ridge of high pressure noses its way into the region.
Cold front is pushing south through the forecast area this morning, with all sites expected to see northerly winds by Thursday afternoon. Latest WV satellite shows west-southwesterly flow aloft over the Panhandles ahead of a longwave trough over NV. At the surface, a lee trough has developed and is located north-south over the central Panhandles while a weak cold front moves south through NE CO and W NE. Expect temperatures to be a touch cooler than yesterday given the shift to northerly winds. Guidance in robust agreement that the NV upper trough will have progressed and deepened to an upper low over NM by Friday afternoon, but strong enough forcing for ascent to overcome the relatively dry air mass does not look to arrive before the evening hours.
Near the surface, a weak cold front is pushing south-southeast across the Oklahoma Panhandle and south central Kansas. Winds will switch to the north after sunrise and strengthen behind the low this afternoon to 15-25 mph. Overall temperatures should reach into the lower 50s for highs with the exception of Stafford and northern Pratt county being a few degrees cooler from the residual snowpack. A trough which at the time of this discussion is located in Nevada will continue to move south and east and develop into a closed low over the four corners region on Friday. Over the central plains an area of high pressure will settle in southwest Kansas and we should have mainly sunny skies with northeast winds.
A ridge of high pressure will start to build into the area.
It seems that the influence of high pressure to the south can diminish the drizzle chance with time. Upper low, currently moving across Lake Erie, will continue to move away from the area, ending any precipitation. Some clearing will start to arrive late in the day into tonight as high pressure moves in, but afraid that trapped boundary layer moisture could keep stratus around longer.
Winds will switch to the north after sunrise and strengthen behind the low this afternoon to 15-25 mph. Overall temperatures should reach into the lower 50s for highs with the exception of Stafford and northern Pratt county being a few degrees cooler from the residual snowpack. A trough which at the time of this discussion is located in Nevada will continue to move south and east and develop into a closed low over the four corners region on Friday. Over the central plains an area of high pressure will settle in southwest Kansas and we should have mainly sunny skies with northeast winds.
An upper level trough will swing across the Northern Plains late today into Friday morning, sending a cold front south through the Plains. Much cooler temperatures are expected behind the front, with temperatures falling into the 40s.
Did hedge a bit cooler in parts of central KS where snow lingers.
An upper level trough will sweep south through the state today. Light precipitation and colder temperatures will accompany this trough. High pressure aloft will expand east across the Great Basin Friday, bringing dry conditions and seasonal temperatures for the upcoming weekend.
A weak cold front will be crossing eastern KY as the period starts, but will have very limited moisture and should not bring anything more than some clouds. The upper level trough supporting the front will leave behind a closed low over the southwest CONUS, and this will be an important player in subsequent weather. During the weekend, the aforementioned upper low will move east, and models are consistent in allowing it be pickup/phased with a northern stream trough diving southeast out of Canada.
Some of these sites experienced freezing fog overnight as well thanks to temps being below freezing. The first part of this evening will feature light winds with a gradual increase in clouds as a cold front approaches the area from the northwest. Cold front passes tonight and a lack of moisture along with weak lift expected to keep any precip chances below mentionable values. Slightly cooler temps expected Friday while rain chances remain focused just south of the forecast area.
A weak cold front currently bisects the CWA and will continue to shift east through the morning. Another cold front slides across the region late Thursday into Friday. At the mid-levels, the general set-up will contain a moderately amplified ridge located over the western CONUS, a trough over the eastern CONUS, and a weak cut-off low over the four corners region that will not impact this area. The CWA will remain in the warmer sector as westerly winds advect warmer air in at the lower levels and surface.
423 AM MST Thu Nov 26 2020 Pretty quiet weather expected for Thanksgiving day as a weak cold front has pushed south into Colorado last night. Trough axis associated with the front will remain over the region through most of the day today, so can't rule out some snow shower/flurry activity across southeast Wyoming through the day. Cold temperatures expected tonight with lows in the teens for most areas, but single digits expected for the high valleys west of I-25.
A flat ridge will be located over the area on Friday leading to dry weather and warmer than average temperatures. with flat ridging ahead of a series of fast moving troughs. Dry and breezy conditions will continue, with temperatures near to slightly warmer than average.
311 AM MST Thu Nov 26 2020 A cold front will pass through the forecast area today bringing with it a chance for light rain and snow showers. Upper ridging over the western U.
214 AM PST Thu Nov 26 2020 Cooler temperatures and breezy easterly winds are on the menu this Thanksgiving Day. Upper trough is swinging through the region this morning, bringing breezy northeast winds and cooler temperatures. It will remain cool on Friday with low level easterly flow, but we'll see a warming trend into the weekend as a ridge builds into the region.
340 AM CST Thu Nov 26 2020 Cooler temperatures with breezy to windy conditions expected today. Scattered light rain or snow showers will be possible as a cold front moves through this afternoon. In the upper levels an open trough was situated over the southern Canadian Prairies with a couple speed/vort maxes rounding the circulation, one over South Dakota and the next over southern Alberta. Cooler temperatures are expected today with highs in the low 30s north to low 40s south.
After a period of partly to mostly clear conditions this evening, clouds will be on the increase again overnight as a weak cold front approaches from the northwest.
These clouds are in association with a weak trough that will pass through the western slope this Thanksgiving afternoon. Forecast guidance continues to support some very light snow for the higher terrain in the central and northern mountains with this system. As the trough axis slides east of the Continental Divide this evening, the tail end of this system will cut off and linger behind to the southwest of the Four Corners. On Friday, this cut- off low pressure system will slowly lumber eastward from Arizona into New Mexico. The cut-off upper-level low pressure system will move east of the Continental Divide on Friday night and clouds will clear in the south.