Aikyam-Lab/Synoptic-Bench huggingface dataset:
352 AM CST Mon Dec 6 2021 Little snow/flurries have continued to work southeast across the area along a cold front and secondary push of CAA this morning. Tonight, clouds will be on the increase ahead of the next wave/low pressure moving in to the area. This, as well as WAA and low level frontogenesis, brings snow chances to the region, with the highest chances for snow through Tuesday morning along the Highway 14 corridor in SD, across southwestern MN, and into northwestern IA. Snow may struggle initially with dry air at the lowest levels. Snow tapers off by Tuesday afternoon as low pressure slides to the east.
(Today and tonight) After the unusually warm and somewhat humid day we had yesterday, those going outside this morning will definitely notice the change with brisk north winds and much cooler temperatures. A strong cold front is advancing quickly south across our central counties (Concho Valley and Heartland areas) at 355 AM, and was just south of San Angelo and Brownwood. The stronger winds will occur through midday, and the higher gusts (35-40) mph are expected across the Big Country, Concho Valley and Crockett County. Temperatures will be much cooler today despite the ample sunshine. Highs this afternoon will range from the lower 50s across the Big Country, to near 60 along and south I-10.
/issued 439 AM CST Mon Dec 6 2021/ Cool, dry and seasonal early December weather will prevail across the Midsouth through midweek, following this morning's cold frontal passage. These light winds and dry air (lower to mid 20s dewpoints), should preclude fog/freezing fog formation late tonight.
537 AM PST Mon Dec 6 2021 Dry and a little warmer today with patchy fog this morning near the coast. A low pressure system from the northwest will bring cooling and scattered, mostly light showers on Tuesday.
322 AM CST Mon Dec 6 2021 Arctic high pressure will build in from the northwest this morning and continue off to the southeast tonight. For today, the high will usher in the coldest air of the season so far. As the high exits tonight, an inverted trough will push a nose of waa into central and eastern SD. The period begins with a warming trend as weak ridging aloft transitions to low amplitude southwest flow with modified Pacific air pushing into the region.
Otherwise, expect a cold day for most areas, with highs ranging from the single digits above zero north and east to the low 20s southwest.
530 AM CST Mon Dec 6 2021 Arctic high pressure will build in from the northwest this morning and continue off to the southeast tonight. For today, the high will usher in the coldest air of the season so far. As the high exits tonight, an inverted trough will push a nose of waa into central and eastern SD. The period begins with a warming trend as weak ridging aloft transitions to low amplitude southwest flow with modified Pacific air pushing into the region.
SHORT TERM (Now through Tuesday): The most recent surface analysis indicated a cold front exiting the Texas Panhandle. Dry weather will return for the inland area on Tuesday, with precipitation possibly lingering over the lower Texas coastal waters at that time.
All locations reached at least into the 50s by late evening and many areas near and south of I-70 reached the low to mid 60s. A trailing cold front is progressing through central Indiana at this time with strong cold advection in its wake. Geometry/amplitude of the next wave is unsupportive of such a strong warm advection regime seen with the current system, thus temperatures will fail to rise above freezing for most of the area Tuesday.
For today, cool Canadian high pressure will reside over western NE. Tonight, a weak cold front will move into the northwest late tonight. Temperatures will actually be slightly warmer, into the low to mid 40s southwest and mid to upper 30s north.
303 AM CST Mon Dec 6 2021 A strong high pressure system is building into the CWA with strong CAA today. Tonight, the high pressure system will begin to shift off to the east and will allow the winds to shift more to the south and southwest.
546 AM CST Mon Dec 6 2021 (Today and tonight) Strong cold front has brought much cooler air into the area along with gusty north winds. South winds will return rather quickly as next system approaches and lee trough deepens Monday night.
Atlantic high pressure with light flow and some low level moisture remains across the state to the Gulf through early Tue. Otherwise high pressure stretches across the waters for the next couple of days with light to moderate winds.
Decent SVR Wx potential continues to set up over the area as a strong cold front approaches.
501 AM CST Mon Dec 6 2021 (Today) The cold front has cleared all except the far southeastern corner of the forecast area.
/issued 310 AM CST Mon Dec 6 2021/ SHORT TERM (Now through Tuesday): The most recent surface analysis indicated a cold front exiting the Texas Panhandle. Dry weather will return for the inland area on Tuesday, with precipitation possibly lingering over the lower Texas coastal waters at that time.
854 AM CST Mon Dec 6 2021 Frigid temperatures continue this morning with temperatures having dropped to just warmer than 20 below zero, with wind chills reaching the upper 30s below zero, in parts of northern North Dakota. Otherwise, expect a cold day for most areas, with highs ranging from the single digits above zero north and east to the low 20s southwest.
507 AM MST Mon Dec 6 2021 Cold high pressure moving across the northern Plains this morning with skies clearing out for much of the region. High pressure behind the wave will keep Tuesday cold but as upper ridge builds into the northern Rockies temperatures will be on the rebound.
520 AM CST Mon Dec 6 2021 Little snow/flurries have continued to work southeast across the area along a cold front and secondary push of CAA this morning. Tonight, clouds will be on the increase ahead of the next wave/low pressure moving in to the area. This, as well as WAA and low level frontogenesis, brings snow chances to the region, with the highest chances for snow through Tuesday morning along the Highway 14 corridor in SD, across southwestern MN, and into northwestern IA. Snow may struggle initially with dry air at the lowest levels. Snow tapers off by Tuesday afternoon as low pressure slides to the east.
335 AM CST Mon Dec 6 2021 Rain is pushing south of the CWA early this morning as the upper trough over the Upper Midwest continues to move east at the same time the surface front moves into the Ohio Valley and the Mid South. Models are now showing a faster progression of the trough axis, so have gone dry now on Tuesday night.
Gusty winds and fairly low visibilities were still found at Crookston, Detroit Lakes, Fergus Falls, and Wahpeton- Breckenridge.
At the same time, we lie on the western periphery of a ridge over the western North Atlantic, which is allowing for moisture to pool across the region. To the west of this trough we have north to northeast winds, which can be seen at places like Sand Key Light and Sombrero Key Light. Otherwise, the lower Keys remain shower free this morning with occasional passing clouds. This is maintaining light northeast breezes across the waters west of the Channel 5 Bridge, while light to gentle southeast breezes across the eastern waters.
522 AM CST Mon Dec 6 2021 A strong high pressure system is building into the CWA with strong CAA today. Tonight, the high pressure system will begin to shift off to the east and will allow the winds to shift more to the south and southwest.
515 AM CST Mon Dec 6 2021 (Today and tonight) After the unusually warm and somewhat humid day we had yesterday, those going outside this morning will definitely notice the change with brisk north winds and much cooler temperatures. A strong cold front is advancing quickly south across our central counties (Concho Valley and Heartland areas) at 355 AM, and was just south of San Angelo and Brownwood. The stronger winds will occur through midday, and the higher gusts (35-40) mph are expected across the Big Country, Concho Valley and Crockett County. Temperatures will be much cooler today despite the ample sunshine. Highs this afternoon will range from the lower 50s across the Big Country, to near 60 along and south of I-10.
439 AM CST Mon Dec 6 2021 Cool, dry and seasonal early December weather will prevail across the Midsouth through midweek, following this morning's cold frontal passage. These light winds and dry air (lower to mid 20s dewpoints), should preclude fog/freezing fog formation late tonight.
Cooler daytime temperatures can be expected this week starting Tuesday as the first of two weather systems passes through the region.
(Today and tonight) After the unusually warm and somewhat humid day we had yesterday, those going outside this morning will definitely notice the change with brisk north winds and much cooler temperatures. A strong cold front is advancing quickly south across our central counties (Concho Valley and Heartland areas) at 355 AM, and was just south of San Angelo and Brownwood. The stronger winds will occur through midday, and the higher gusts (35-40) mph are expected across the Big Country, Concho Valley and Crockett County. Temperatures will be much cooler today despite the ample sunshine. Highs this afternoon will range from the lower 50s across the Big Country, to near 60 along and south of the I-10.
304 AM CST Mon Dec 6 2021 A strong, fast moving Canadian Cold front was clearing south of the area early this morning. Much cooler air will settle across the area today with highs staying in the 40s or lower 50s. At the surface, winds will become westerly as a lee cyclone moves across the Texas Panhandle.
/issued 304 AM CST Mon Dec 6 2021/ A strong, fast moving Canadian Cold front was clearing south of the area early this morning. Much cooler air will settle across the area today with highs staying in the 40s or lower 50s. At the surface, winds will become westerly as a lee cyclone moves across the Texas Panhandle.
513 AM CST Mon Dec 6 2021 Rain is pushing south of the CWA early this morning as the upper trough over the Upper Midwest continues to move east at the same time the surface front moves into the Ohio Valley and the Mid South. Models are now showing a faster progression of the trough axis, so have gone dry now on Tuesday night.
Very light snowfall accumulations are expected over the higher terrain with nothing to perhaps a dusting in the valleys.
232 PM CST Mon Dec 6 2021 The cold front is well east of the area this afternoon with two thirds of the area enjoying some sun at this point. Cloud cover will begin to increase tomorrow afternoon as a broad upper trough moves toward the area. There is a small chance of some precipitation Tuesday night after midnight, but overall, models show fairly shallow moisture associated with the upper trough and even though temperatures could touch the freezing mark, the dendritic growth zone looks pretty dry which would favor a few sprinkles if any precipitation makes it to the ground.
Arctic high pressure will build in from the northwest this morning and continue off to the southeast tonight. For today, the high will usher in the coldest air of the season so far. As the high exits tonight, an inverted trough will push a nose of waa into central and eastern SD. The period begins with a warming trend as weak ridging aloft transitions to low amplitude southwest flow with modified Pacific air pushing into the region.
A strong, fast moving Canadian Cold front was clearing south of the area early this morning. Much cooler air will settle across the area today with highs staying in the 40s or lower 50s. At the surface, winds will become westerly as a lee cyclone moves across the Texas Panhandle.
At the same time, moisture is rounding the western periphery of a ridge centered over the western North Atlantic. As the trough shifts east, north to northeast surface winds will overtake the region thanks to a nearby micro-anticyclone. Meanwhile, a weakly defined ridge axis will sit just to our south.
Warmer air moving into Garfield county and eventually across the lake this afternoon might decrease the fog for the afternoon but the warm water may allow it to continue. TFJ Cold high pressure moving across the northern Plains this morning with skies clearing out for much of the region. High pressure behind the wave will keep Tuesday cold but as upper ridge builds into the northern Rockies temperatures will be on the rebound.
Temperatures were in the single digits across the north to the lower to middle 20s along the lakeshore.
Further, these winds combined with cold temperatures will cause significant ice accretion on any vessels that happen to be out on the Lake hence a Heavy Freezing Spray Warning has been issued.
(The rest of today ) A chilly day is underway across eastern Oklahoma and western Arkansas as high pressure continues to build into the region in the wake of the cold front that is now well south and east area.
Frigid temperatures continue this morning with temperatures having dropped to just warmer than 20 below zero, with wind chills reaching the upper 30s below zero, in parts of northern North Dakota. Otherwise, expect a cold day for most areas, with highs ranging from the single digits above zero north and east to the low 20s southwest.
The cold front has cleared the area with storms well east. Fairly strong cold front currently pushing through the area causing strong winds, heavy rain.
The cold front has cleared the area with storms well east.
940 AM PST Mon Dec 6 2021 Dry and warm weather today will be followed by much cooler weather Tuesday with a chance for scattered light showers Tuesday.
1157 AM CST Mon Dec 6 2021 Rain is pushing south of the CWA early this morning as the upper trough over the Upper Midwest continues to move east at the same time the surface front moves into the Ohio Valley and the Mid South. Models are now showing a faster progression of the trough axis, so have gone dry now on Tuesday night.
1112 AM CST Mon Dec 6 2021 (The rest of today ) A chilly day is underway across eastern Oklahoma and western Arkansas as high pressure continues to build into the region in the wake of the cold front that is now well south and east area.
1136 AM CST Mon Dec 6 2021 (Today and tonight) Strong cold front has brought much cooler air into the area along with gusty north winds. South winds will return rather quickly as next system approaches and lee trough deepens Monday night.
(This evening through Tuesday) Strong cold air advection behind the cold front today has brought temperatures 15-30 degrees lower than they were yesterday. While this won't relieve the dryness, it will help bring in some warmer air as highs Tuesday are expected to range from the mid 60s to the low 70s.
331 PM EST Mon Dec 6 2021 Discussion/Marine - Snow showers will continue tonight with diminishing winds The deepening low pressure system tracking into Quebec will keep the pressure gradient tight through the evening with a broad cyclonic flow throughout the CWA. Any remaining snow showers/flurries Tuesday may start to fill back in Tuesday night north of Muskegon as a south to southwest flow develops and the low level convergence increases.
This ridge will slowly shift eastward overnight but remain highly influential regarding early morning low temps Tue.
1119 AM CST Mon Dec 6 2021 (Today and tonight) After the unusually warm and somewhat humid day we had yesterday, those going outside this morning will definitely notice the change with brisk north winds and much cooler temperatures. A strong cold front is advancing quickly south across our central counties (Concho Valley and Heartland areas) at 355 AM, and was just south of San Angelo and Brownwood. The stronger winds will occur through midday, and the higher gusts (35-40) mph are expected across the Big Country, Concho Valley and Crockett County. Temperatures will be much cooler today despite the ample sunshine. Highs this afternoon will range from the lower 50s across the Big Country, to near 60 along and south of I-10.
Much cooler temperatures have also spread into the region with readings currently in the mid 50s to mid 60s.
Morning KBOI sounding indicated that the lower portions of the atmosphere still fairly dry and sfc dewpoints in the low to mid 20s. So it still may take some time to moisten up the airmass to the point where we could see light snow showers in the Lower Treasure Valley.
1131 AM CST Mon Dec 6 2021 A strong high pressure system is building into the CWA with strong CAA today. Tonight, the high pressure system will begin to shift off to the east and will allow the winds to shift more to the south and southwest.
A couple of different camps in the guidance as far as how this evolves with a decent clustering of the high-res guidance focusing any light accumulations well into SW MN with the coarser resolution deterministic guidance pinning some light QPF further west of I-29. Clouds should clear from west to east through the morning and early afternoon hours Tuesday leaving temperatures a bit warmer than today's values, although still a shade on the cool side of normal.
1102 AM CST Mon Dec 6 2021 Little snow/flurries have continued to work southeast across the area along a cold front and secondary push of CAA this morning. Tonight, clouds will be on the increase ahead of the next wave/low pressure moving in to the area. This, as well as WAA and low level frontogenesis, brings snow chances to the region, with the highest chances for snow through Tuesday morning along the Highway 14 corridor in SD, across southwestern MN, and into northwestern IA. Snow may struggle initially with dry air at the lowest levels. Snow tapers off by Tuesday afternoon as low pressure slides to the east.
Winds will remain light and variable through this afternoon as this high maintains control.
An upper level trough will continue to deepen across the eastern U. today, while the surface cold front pushing southward across central portions of Mississippi and Alabama will move across our forecast area late this afternoon and into this evening. Highs today remain on track to range in the lower 70s across interior southeast MS and southwest AL to the mid to upper 70s across the remainder of the region. A convective line of SHRA and embedded TSRA is forecast to move from NW to SE across the local area along a cold front from around 06. Southwesterly winds of 8 to 15 knots with gusts up to 25 knots will proceed the cold front, along with MVFR ceilings.
Strong winds in the higher elevations continue so will leave the wind advisory as is for now. LW Chattanooga Airport, TN 32 50 39 54 36 / 0 10 30 20 0 Knoxville McGhee Tyson Airport, TN 29 48 37 50 32 / 0 10 30 30 0 Oak Ridge, TN 28 47 35 49 31 / 0 10 30 20 0 Tri Cities Airport, TN 26 45 32 44 28 / 0 10 30 40 0 TN.
Winds will be gusty over 20 kt through 03z from the north to northeast behind the cold front.
230 PM MST Mon Dec 6 2021 Current surface analysis shows high pressure centered over the eastern Dakotas, with cold Canadian air in place across the region. Upper level analysis shows large scale trough over the Great Lakes region, with west-northwest flow from the Pacific NW into the Plains. Temps are mostly in the 20s across the forecast area with south to southeast winds increasing as the high shifts east of the region.
Cooler through the night with moderate CAA though over the waters stronger winds aloft should mix down at least for a while. So far the lower cloud deck with the frontal inversion have been lacking though models were very bullish for this occurrence. Tuesday night winds start to flop back to the east and warm front wobbles back into the coastal waters which may bring some lower clouds back to the CWA's coastal counties.
After a busy night/morning across the region a much cooler and clear night is expected across the Mid South.
336 PM CST Mon Dec 6 2021 After a busy night/morning across the region a much cooler and clear night is expected across the Mid South.
The cold front is well east of the area this afternoon with two thirds of the area enjoying some sun at this point. Cloud cover will begin to increase tomorrow afternoon as a broad upper trough moves toward the area. There is a small chance of some precipitation Tuesday night after midnight, but overall, models show fairly shallow moisture associated with the upper trough and even though temperatures could touch the freezing mark, the dendritic growth zone looks pretty dry which would favor a few sprinkles if any precipitation makes it to the ground.
417 PM CST Mon Dec 6 2021 This afternoon through tomorrow: The advertised cold front is currently working its way out of the southern part of our forecast area early this afternoon. For temperatures through tonight and into tomorrow, cold air advection and persistent low clouds over parts of the region will keep temperatures on the cooler side of guidance. /NF/ The region will be situated under broad troughing aloft by Tuesday night.
Some of the coldest temperatures of the season so far will be in place early Tuesday morning with lows in teens and highs struggling to reach freezing.
Tuesday will be cooler with a chance for scattered light showers.
(This afternoon through Tuesday night) Much cooler temperatures this afternoon thanks to the cold front that passed through early this morning. Expect high temperatures today mainly in the low to mid 50s with a few 60s in the Big Bend region. Skies will remain clear today and overnight, which will allow many spots to drop below freezing. We return to zonal flow on Tuesday, helping us warm into the low to mid 70s Tuesday afternoon with mostly clear skies. Temperatures Tuesday night will be warmer than the previous night with mid 30s to mid 40s.
Skies cleared out today as the trough that brought snow to region over the weekend moves eastward and high pressure at the surface builds in. Did adjust the low temperatures a couple of notches down over the areas that had the higher snowfall.
455 PM MST Mon Dec 6 2021 Radars, Satellite pictures and web cameras are showing some light snow starting up in the higher mountains at this time. There are some west and northwesterly winds up to 40 MPH along the divide and the higher passes. A weak upper trough is expected to push across the CWA tonight into Tuesday. Snowfall totals will be under 6 inches in the high mountains, but at least it should actually snow. The higher valleys and higher foothills can expected a "chance" of light snow. Warm air advection is expected for the first two periods, with Tuesday highs about 3-6 C warmer than today.
Cold high pressure will continue to move into the area and bring below normal air into central IL for tonight through tomorrow. The high pressure will move through quickly as a weak weather system moves into the area with a chance of light snow. The more significant chances of snow will be Tuesday evening, along and east of I-55 when the dynamics get a little stronger and the lower layers moisten up enough for the precip to be more than light flurries. After a cool Wed with temps just below normal, temps will return to warmer than normal for the rest of the week. High pressure will provide VFR conditions the rest of tonight and Tuesday morning.
At 315 PM, longwave troughing and northwest flow aloft over the Central Plains were beginning to give way to weak riding at 500 mb. Moisture advection (700 to 300 mb layer) over the apex of the building ridge was leading to increased cirrus coverage this afternoon.
602 PM CST Mon Dec 6 2021 (This evening through Tuesday) Strong cold air advection behind the cold front today has brought temperatures 15-30 degrees lower than they were yesterday. While this won't relieve the dryness, it will help bring in some warmer air as highs Tuesday are expected to range from the mid 60s to the low 70s.
This evening through Tuesday night With CAA in full force, temperatures have plummeted to near seasonal-averages behind yesterday's cold front.
Believe the breezy northerly flow will limit the strongest effects of radiational cooling, but temperatures will still drop near or below freezing across the area.