Aikyam-Lab/Synoptic-Bench huggingface dataset:
321 AM CST Thu Dec 16 2021 Satellite water vapor imagery showed the passing low pressure system spinning into the Arrowhead Region of northeastern Minnesota and eastern Lake Superior. Surface observations near the center of the low were dipping below 980 mb as of 3 AM. Not including the peak wind gusts from the severe storms that blew through the region last evening, the highest gusts from across the region were in the 60s. The current plan is to let the high wind warning expire at 6 AM if the diminishing trend continues. High pressure building in from the west ushering in drier conditions will help scatter out the clouds leading to mostly clear skies overnight. By Friday morning, temperatures dip into the low teens to low 20s.
959 AM EST Thu Dec 16 2021 Strong high pressure continues to ridge west-southwest over the southeast U. Latest surface observations and visible satellite imagery are showing mostly sunny skies and temperatures already in the low to mid 70's. Broad high pressure ridging into the Gulf of Mexico will keep a predominant east-southeast wind flow over the gulf waters through the week and into the weekend.
The unsettled pattern wl cont on Fri as the fnt conts to sloly return to the N as a warm front.
Temperatures remain cold for most of the region today, although ridge tops across the south could see some mixing winds ahead of the next system to boost the temperatures. Temperatures rebound a bit for the weekend as a stronger ridge moves into the area. High pressure with cold temperatures will move across the region today.
/issued 437 AM CST Thu Dec 16 2021/ A cold front will move through today, bringing showers and scattered thunderstorms along with it. The front will stall out somewhere just south of the I-40 corridor Friday morning, slowly lifting back up as a warm front by Friday night.
Highs today will generally be in the lower to middle 30's. Cold and dry northwest flow with some partial clearing and fresh snow will prevent high temperatures from reaching the freezing mark on Friday and then Friday night very cold temperatures are expected, ranging from the single digits above zero to the single digits below zero, coldest likely in central Nevada, where clearer skies are expected.
213 AM MST Thu Dec 16 2021 The trailing H5 trough continues to come ashore along the Pacific Northwest this morning. Ahead of this trough, southwesterly flow continues to set up, with a tap of Pacific moisture caught up in it. The H5 trough will seep through Friday morning, bringing through the aforementioned cold front during the afternoon. Once the trough passes, Flow aloft turns more from the north-northwest, shutting down snowfall production for all locations by sunset Friday.
Look for fair weather today with warmer daytime temperatures behind the most recent storm system.
The highest was 78 mph at Redwood Falls. The rest of the highest gusts ranged from 60 to 70 mph, mostly across southern Minnesota eastward to the Eau Claire area. The High Wind Warning expires at 6 AM, but could be cancelled sooner.
(Today and tonight) The cold front is now accelerating southward early this morning and recently crossed I-44. Today will be cooler behind the front and mostly clear skies are expected over the majority of the FA. Overnight, a warm front will begin to surge back to the north northwest into north TX and the Red River of SE OK.
423 AM MST Thu Dec 16 2021 The trailing H5 trough continues to come ashore along the Pacific Northwest this morning. Ahead of this trough, southwesterly flow continues to set up, with a tap of Pacific moisture caught up in it. The H5 trough will seep through Friday morning, bringing through the aforementioned cold front during the afternoon. Once the trough passes, Flow aloft turns more from the north-northwest, shutting down snowfall production for all locations by sunset Friday.
350 AM CST Thu Dec 16 2021 Cold front and an upper level short wave will continue to move out of the CWA this morning. Some of the higher res model guidance increased QPF across the region for Friday bringing snow totals of 1 to 4 inches, with perhaps some locally higher amounts.
513 AM CST Thu Dec 16 2021 Satellite water vapor imagery showed the passing low pressure system spinning into the Arrowhead Region of northeastern Minnesota and eastern Lake Superior. Surface observations near the center of the low were dipping below 980 mb as of 3 AM. Not including the peak wind gusts from the severe storms that blew through the region last evening, the highest gusts from across the region were in the 60s. The current plan is to let the high wind warning expire at 6 AM if the diminishing trend continues. High pressure building in from the west ushering in drier conditions will help scatter out the clouds leading to mostly clear skies overnight. By Friday morning, temperatures dip into the low teens to low 20s.
650 AM EST Thu Dec 16 2021 Very gusty winds this morning will diminish later today, as will rain showers that are accompanying a cold front. Temperatures will also fall throughout the day and it will be below freezing tonight.
511 AM EST Thu Dec 16 2021 A sprawling high pressure system centered over the western North Atlantic continues to drive fresh breezes across the Florida Keys this morning.
a baggy upper trough will shift south and east across Colorado on Friday. Across the Plains, a cold front will drop south during the morning hours, helping to keep temperatures from rising out of the mid 40s to lower 50s.
600 AM CST Thu Dec 16 2021 (Today) Cold front currently located from east central OK into far NW AR with a focused corridor of persistent convection and scattered showers further south across the warm sector.
Friday should start out with mostly sunny skies, as high pressure moves through the area.
It is still uncertain how far W the low clouds will spread, so will keep out mention at other sites for now. Low clouds and patchy fog will be possible across the lower Trans Pecos and Permian Basin by early tomorrow morning. Any fog that develops will quickly dissipate after sunrise as dry air mixes ewd in response to a developing sfc trof across the S Plains.
This will result from decent moisture flux ahead of the next western conus upper trof which will move across the northern/central Rockies across the northern Plains.
1048 AM MST Thu Dec 16 2021 The trailing H5 trough continues to come ashore along the Pacific Northwest this morning. Ahead of this trough, southwesterly flow continues to set up, with a tap of Pacific moisture caught up in it. The H5 trough will seep through Friday morning, bringing through the aforementioned cold front during the afternoon. Once the trough passes, Flow aloft turns more from the north-northwest, shutting down snowfall production for all locations by sunset Friday.
123 PM EST Thu Dec 16 2021 Warm conditions with widespread showers are likely before the arrival of a cold front later today.
1120 AM CST Thu Dec 16 2021 Satellite water vapor imagery showed the passing low pressure system spinning into the Arrowhead Region of northeastern Minnesota and eastern Lake Superior. Surface observations near the center of the low were dipping below 980 mb as of 3 AM. Not including the peak wind gusts from the severe storms that blew through the region last evening, the highest gusts from across the region were in the 60s. The current plan is to let the high wind warning expire at 6 AM if the diminishing trend continues. High pressure building in from the west ushering in drier conditions will help scatter out the clouds leading to mostly clear skies overnight. By Friday morning, temperatures dip into the low teens to low 20s.
200 PM EST Thu Dec 16 2021 Persistent mid level ridging extends northeastward from the western Gulf of Mexico, over Florida and into the western Atlantic. This ridging shifts eastward and flattens out through the end of the week and into the weekend. The surface reflection is a 1032 MB high pressure center northeast of Bermuda and broad surface ridging extending southwest over the southeast U.
251 PM CST Thu Dec 16 2021 18z data has an intense low near James Bay Canada with a cold front running through the Ohio Valley and into the big bend of Texas. High pressure was located over the central and northern Plains. Winds will continue to slowly decrease late this afternoon as the storm system moves further into Canada and high pressure moves east from the Plains. Tonight and Friday will be quiet and dry with temperatures near normal as the high moves toward the Ohio Valley.
Temperatures rebound a bit for the weekend as a stronger ridge moves into the area. WINDS: E winds around 10 knots through this evening become NW at 15 to 20 knots late tonight into Friday with the passage of a cold front.
Easterly winds picking up tomorrow over our southern counties as low pressure develops over SD/Neb.
A much cooler and quieter day has evolved over the region, yet temperatures are still running 5-10 degrees above normal with readings in the middle 40s to lower 50s under mostly sunny skies. Longwave positively-tilted trough will emerge into the Great Plains on Friday, with a warm front gradually lifting northward into southern and central Missouri.
Issued by National Weather Service Lubbock TX 1201 PM CST Thu Dec 16 2021 (Today and tonight) Low clouds developing and moving north into West Central Texas, ahead of a cold front moving south across the South Plains. Will generally go above guidance for temperatures this afternoon, although a little cooler across the Big Country behind the front than for the those areas farther south.
1143 AM EST Thu Dec 16 2021 Warm conditions with widespread showers are likely before the arrival of a cold front later today.
226 PM CST Thu Dec 16 2021 Very weak ridging will move through overnight with a small wave expected to move into the Northern Plains late tonight into Friday. The low levels are a bit on the dry side.
353 PM EST Thu Dec 16 2021 High pressure across the western Atlantic has been maintaining moderate to fresh breezes across the coastal waters this afternoon. Visible satellite is depicting partly cloudy skies and temperatures are currently in the lower 80s, with dewpoints just above 70 degrees. Luckily, winds of 15 to 20 mph on land have kept any mugginess at bay and a beautiful day is currently ongoing across the Florida Keys! High pressure will remain in control of our weather over the next few days.
1256 PM EST Thu Dec 16 2021 Warm conditions with widespread showers are likely before the arrival of a cold front later today.
Temperatures are mainly in the low to mid 60s under overcast skies. The latest surface analysis places a 975mb low pressure system near Thunder Bay, Ontario with a cold front extending south through Mackinaw City, MI down through Indianapolis and southwest back into Carbondale, IL. Expect temperatures to remain in the mid to upper 60s ahead of the front with temperatures falling into the lower 50s behind the front. /issued 437 AM CST Thu Dec 16 2021/ A cold front will move through today, bringing showers and scattered thunderstorms along with it. The front will stall out somewhere just south of the I-40 corridor Friday morning, slowly lifting back up as a warm front by Friday night.
Currently at the sfc over Nebraska is high pressure. This will attempt to keep lows overnight from dropping cooler. However winds are fairly light so lows are still forecasted to be below freezing in the upper teens. only looking to hit near freezing for north north central Nebraska, and mid 40s for south southwest Nebraska.
1203 PM EST Thu Dec 16 2021 Very gusty winds this morning will diminish later today, as will rain showers that are accompanying a cold front. Temperatures will also fall throughout the day and it will be below freezing tonight.
This will help keep the area a little warmer than the previous night. A cold front will move through the region late tomorrow afternoon and could bring a low potential for light precipitation over the far southeastern Rolling Plains. Downstream from these two troughs will be a jet streak, the core of which will extend across southern Ontario and southern Quebec, but the tail of which is progged to be over the South Plains/Panhandle region. The interaction of the cold front into fairly good low level moisture for mid-December, possibly aided by upper support from the entrance region of the jet streak, will support the continuation of a slight chance mention for thunderstorms.
SR Chattanooga Airport, TN 56 68 59 68 38 / 20 10 40 90 50 Knoxville McGhee Tyson Airport, TN 55 69 57 68 37 / 50 30 40 90 60 Oak Ridge, TN 55 66 57 66 36 / 60 50 40 90 50 Tri Cities Airport, TN 50 65 50 67 36 / 50 40 20 90 70.
At the surface, high pressure will persist over the Carolinas with a cold front draped over the Ohio Valley down into the lower Mississippi Valley. Lows tonight will be mild, in the upper 50s to lower 60s north of I-10 and in the lower to mid 60s south.
Unfavorable mixing winds should keep highs in the lower to mid 40s for much of the afternoon with increasing clouds in southwesterly flow aloft. A mid-level trough will slide east across the northern Plains Friday night dragging a cold front through the area.
Garden City won the strongest wind gust sweepstakes yesterday with a peak gust of 89 mph, but today winds will stay aob 15 mph for much of the area, with the exception being near the KS/CO border where breezy 15-25 mph southerly winds are possible as lee troughing redevelops in eastern CO. Temperatures will be near normal this afternoon, with highs in the low 50s. This feature will continue east through Friday morning and push a cold front through southwest KS. Accordingly, temperatures throughout the day are expected to be cooler than previously thought, with afternoon highs in the low to mid 50s.
Issued by National Weather Service Amarillo TX 1144 AM CST Thu Dec 16 2021 (Today) Cold front currently located from east central OK into far NW AR with a focused corridor of persistent convection and scattered showers further south across the warm sector.
Meteorological Analysis: Last night's cold front has cleared most of the moisture out of the area, leaving us cool and mostly sunny today. A cold front will push through tomorrow afternoon, providing additional lift for thunderstorm development. Rain chances will be cut off northwest of the I-44 corridor by the advancing cold front.
1042 AM EST Thu Dec 16 2021 High pressure currently centered in the western Atlantic is keeping a tightened gradient across the region. With mostly sunny skies across the island chain, temperatures have already reached the lower 80s in most island communities. High pressure will continue to trek to the south to southeast through the afternoon, so winds will remain elevated today. From synopsis, high pressure over the Eastern Seaboard and the Western North Atlantic will support fresh to strong east breezes today through Friday.
/issued 217 AM CST Thu Dec 16 2021/ Southwest flow aloft will continue today as long wave troughing encompasses much of the CONUS. A weak cold front was currently moving through the region shifting light winds to the north but primarily bringing in much drier surface air. Afternoon temperatures will be much cooler today because of the front but still above seasonal averages for mid-December.
Moisture wrapping around the low has resulted in a period of snow across north-central WI today, which is exiting to the east early this afternoon. West winds still gusting 30 to 40 mph with post- frontal mixing/cold advection will slowly slacken this evening/tonight as high pressure approaches with colder overnight lows in the single digits to teens. Seasonable temps in the 20s and 30s are expected Friday with some increase in mid/high clouds ahead of an approaching upper level trough.
Scattered snow showers will continue through the afternoon as the trough moves across the region. Temperatures near freezing today will limit snow accumulation in the valley especially this afternoon. Cloud cover could limit the development initially but do think fog will develop in the Lower Treasure Valley, Baker Valley and the Long Valley tonight. Temperatures will be tricky the next few days with potential fog/stratus development along with a lack of snow cover in the lower valleys.
937 PM EST Thu Dec 16 2021 Rain showers will continue to move across the Upper Ohio Valley in advance of a cold front this evening.
525 PM EST Thu Dec 16 2021 Rain showers will continue to move across the Upper Ohio Valley in advance of a cold front this evening.
This cold front will continue its journey west of the Continental Divide early tonight. The cold front will impact the rest of Flathead and parts of Lincoln County by way of very cold overnight low temperatures and modest snow accumulations.
Northwest flow aloft attempts to push cooler and drier air into the region. However, this high runs into the substantial Bermuda high sitting off the east coast of the CONUS stalling and redirecting it toward the NE overnight tonight into Friday. At the same time, an upper level trough digs into the SW CONUS pushing a large cool air mass across the Great Plains.
The low is of significant depth at this point. Ridging builds in for Friday, so winds will be more normal at 5-15 mph which will be good for all the line crews dealing with downed trees and power lines.
421 PM MST Thu Dec 16 2021 WV imagery this aftn shows the cyclone responsible for yesterday's windy conditions and snow well into nern CN, with trailing vort lobes over the Upper Midwest and Great Lakes regions. Predominant upper flow across the nrn Plains is westerly on the downstream side of a fairly broad, shallow trof across the wrn CONUS. Much cooler temperatures are present over nrn MT/srn SK, with single digit readings above and below zero.
344 PM MST Thu Dec 16 2021 Dry and briefly cooler conditions are expected before temperatures warm back up late in the weekend.
Dry weather and slightly warmer for this weekend. Longwave troughing will be replaced with ridging Friday through this weekend, allowing for slightly warmer temperatures and offshore flow to develop.
The lower atmosphere has moistened further with dew points in the upper 50s to lower 60s.
Low clouds and patchy fog will be possible across the lower Trans Pecos and Permian Basin by early tomorrow morning. Any fog that develops will quickly dissipate after sunrise as dry air mixes ewd in response to a developing sfc trof across the S Plains.
351 PM MST Thu Dec 16 2021 Pacific moisture will continue streaming into western Wyoming as a large-scale trough directs west-southwesterly flow into the region. Winter Weather Advisories continue for the higher elevations that are likely to receive storm total snow in the 6 to 12 inch range over the next 24 hours. Temperatures drop 5 to 10 degrees east of the Divide as a weak cold front pushes in from the north.
325 PM MST Thu Dec 16 2021 Dry and briefly cooler conditions are expected before temperatures warm back up late in the weekend.
Current forecast remains on track, with no rain chances overnight and lows in the low to mid 60s.
VFR prevails as high pressure to our east keeps an easterly wind flow in place. /issued 200 PM EST Thu Dec 16 2021/ Persistent mid level ridging extends northeastward from the western Gulf of Mexico, over Florida and into the western Atlantic. This ridging shifts eastward and flattens out through the end of the week and into the weekend. The surface reflection is a 1032 MB high pressure center northeast of Bermuda and broad surface ridging extending southwest over the southeast U.
214 PM MST Thu Dec 16 2021 WV imagery this aftn shows the cyclone responsible for yesterday's windy conditions and snow well into nern CN, with trailing vort lobes over the Upper Midwest and Great Lakes regions. Predominant upper flow across the nrn Plains is westerly on the downstream side of a fairly broad, shallow trof across the wrn CONUS. Much cooler temperatures are present over nrn MT/srn SK, with single digit readings above and below zero.
Temperatures in the valley have warmed above freezing melting off much of the low elevation snow pack. Baker Valley, Burns and the Lower Treasure Valley have the highest probability of fog tonight. Upper level ridge builds over the region Friday setting up a weak inversion.
Many locations, except for possibly our extreme southern counties, should see a break in the precip tonight, as the cold front that brought today's showers and isolated thunderstorms moves farther south into TN and becomes nearly stationary in the swly flow aloft. However, the break will be temporary, as the front begins to retreat back northward as a warm front into the OH River Valley Friday and Friday night. Precip amounts will likely ramp up with these next rounds of precip, especially Friday afternoon and Friday night, as a mid level trof pushes southeastward into the Midwest and Plains states and interacts with the warm front lifting northward across the forecast area. 5 Standard Deviations above climo norms Friday night as a wave of low pressure forms in srn MO and lifts northeast along the Ohio River.
High pressure will make slow inroads into the area tonight but will be on the weak side, just enough to allow an inverted trough of low pressure to drift across the region Friday afternoon through Friday night. Accumulations will be limited to roughly along and west of a line from Cambridge to St Michael to New Ulm.
High pressure will make slow inroads into the area tonight but will be on the weak side, just enough to allow an inverted trough of low pressure to drift across the region Friday afternoon through Friday night. Accumulations will be limited to roughly along and west of a line from Cambridge to St.
352 PM CST Thu Dec 16 2021 A cold front currently bisects the forecast area at 3PM. Temperatures have already fallen into the low to mid 50s behind the front, with mid to upper 60s ahead of the front. An upper trough over the California coast will continue to dive south into Baja California over the next 36 hours or so. As it does, expect the stalled front to lift back as a warm front during the day on Friday.
309 PM MST Thu Dec 16 2021 Pacific moisture will continue streaming into western Wyoming as a large-scale trough directs west-southwesterly flow into the region. Winter Weather Advisories continue for the higher elevations that are likely to receive storm total snow in the 6 to 12 inch range over the next 24 hours. Temperatures drop 5 to 10 degrees east of the Divide as a weak cold front pushes in from the north.
604 PM CST Thu Dec 16 2021 (This evening through Friday) At 3 pm, the cold front had just moved through San Angelo and was still inching it's way to the south, but it should not make much more progress before it stalls out this evening. Aloft, some weak lift in the southwest flow downstream of large trough across the west should interact with moisture flowing into the elevated frontal zone to kick off some showers and thunderstorm activity across the area Friday. Rain chances will initially be highest across the north and east, but will begin to shift south Friday evening as a stronger cold front moves through the area.
This CAD wedge is becoming more of a Bermuda ridge this afternoon/tonight as the ridge center continues to shift E to SE becoming centered off the carolina coast by Fri morning.
Tonight and Friday Light snow showers and freezing drizzle will end in Northcentral Wisconsin by around sunset as an upper trough exits the region. Friday should start out sunny but middle clouds will increase as an upper trough approaches.
536 PM CST Thu Dec 16 2021 Very weak ridging will move through overnight with a small wave expected to move into the Northern Plains late tonight into Friday. The low levels are a bit on the dry side.
Latest GOES water vapor imagery shows this trough located over northern NV moving east. Surrounding valleys could see some light snowfall through midnight, but accumulating snowfall should stick to the higher terrain. Friday will be pretty cold across the CWA with highs in the 20s and 30s as a cold front will sweep north to south by the afternoon. This will end the high wind potential near Bordeaux as gradients across the Laramie Range relax while CAG-CPR height gradients begin to climb headed into Friday evening.