Aikyam-Lab/Synoptic-Bench huggingface dataset:
(The rest of today) A weak cold front continues to push through eastern Oklahoma and northwest Arkansas, with gusty northwesterly winds on its backside. Highs today should be just a couple of degrees cooler than those yesterday in most spots, but still near to just above normal.
The blocking pattern over the Desert Southwest will break down by this evening, and the associated upper ridge will begin moving over the FA during the overnight hours. The upper low remnant from the blocking pattern will begin pushing over the FA tomorrow afternoon and will help tighten the surface lee trough and, as a result, will allow for low end breezy surface winds tomorrow afternoon.
949 AM MST Tue Dec 5 2023 Localized areas of fog through parts of the Lower Treasure Valley into Valley County are burning off this morning, as high cirrus stream overhead.
Broad ridging over the western US will move eastward with high pressure building over Central Alabama. Winds will take on more of a northwesterly heading as the ridge builds eastward producing a couple days of region-wide cold air advection. Lows will range from the lower to upper 30s with locally cooler spots in the valley locations.
1137 AM CST Tue Dec 5 2023 - Patchy fog with near or sub freezing temperatures in some locations is possible early this morning. A low pressure system spinning out of IA will track across central IL/IN and the Mid Ohio Valley today. South of there, cleared skies and temperatures near/just below freezing have led to some patchy fog development. This could last a few more hours, continuing a freezing fog hazard until the cloud cover moves in and temperatures recover.
1004 AM MST Tue Dec 5 2023 - Look for warm, dry weather for the next couple days under mostly clear skies as a ridge moves across the region.
Temperatures are forecast to dip into the low to mid 30s early Wednesday morning. Ridging builds in from the west. Afternoon temperatures will only max out in the low to mid 40s.
127 PM CST Tue Dec 5 2023 (Rest of Today) Temps have gradually started to rebound this Tue morning into the mid 30s/lower 40s from their earlier lows in the lower 30s/near 30F. High pressure remains layered over the western/central Gulf Coast areas, as a dry, reinforcing cold front approaches from the NW.
High amplitude ridging evident in water vapor imagery is dominating over western CONUS early this afternoon. Otherwise, due to the strong ridging, temperatures will be at near record levels the next couple of days. The strong ridging will slide east of the region after tomorrow as strong troughing cutting across the Pacific Northwest begins to dig into the Great Basin.
A mid-level ridge will advance eastward into the Plains in tandem with a low- level thermal ridge.
1235 PM EST Tue Dec 5 2023 Conditions will trend cooler through Wednesday, with intermittent periods of showers as we head into mid week.
942 AM MST Tue Dec 5 2023 A mild afternoon is expected today, along with gusty westerly winds as a ridge of high pressure builds over Montana.
Up north, in Lincoln and Sanders Counties, 24 hour precip totals of one to upwards of two inches are showing up in the higher terrain along the ID-MT border and the Cabinet Range. Expect rain to continue through much of Wednesday with additional rainfall totals of one to two inches in the higher terrain and 0. Grangeville, Hamilton, Philipsburg, and Butte are all over 50 degrees early this afternoon, while some measuring sites in the Lower Salmon, Snake River, and Bitterroot Valleys have broken the 60 degree mark.
1109 AM CST Tue Dec 5 2023 (Today through Wednesday afternoon) WV imagery shows an upper ridge over the western CONUS, leaving West Texas and Southeast New Mexico under dry, northwest flow aloft. At the surface, a weak cold front is moving through the Texas Panhandle, and will ease into the northern zones this morning, and dissipate invof the Pecos this afternoon. Wednesday, return flow resumes as upper ridging moves through the region.
1027 AM MST Tue Dec 5 2023 Key message: - Warmer than average temperatures again today Upper level ridge builds into the Rockies today and tonight, bringing above average temps to most of southern Colorado. Despite warming mid-levels and rising heights, maxes today will actually be a few degf cooler than Mon, mainly due to lighter winds and less mixing under the building ridge. Clear and cool again tonight, with sheltered interior valleys coldest, while usual eastern mountain slopes will benefit from a weak downslope wind, keeping mins here near/above freezing.
Still expecting the strong northwesterly flow aloft to bring another cold front across the area this afternoon. Decided to go a little cooler than guidance on temps, as overnight lows should fall into the 30s areawide. Near or below freezing temps are possible north of Interstate 20, and especially north of Interstate 30 by tomorrow morning. However, expect cooler conditions across the region.
(Tonight through Wednesday night) A NW flow pattern aloft over the plains states will shift east tonight as the base of an Ern CONUS upper trough digs into the Deep South and allows for building heights over TX.
The cold front which has been moving across the Mid-South will exit the region tonight. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than normal.
1113 AM CST Tue Dec 5 2023 (Today through Wednesday) Southwesterly flow aloft turns more zonal into mid-week as a weak 500mb ridge begins to take shape across Texas, maintaining some high clouds across Deep South Texas through the short term period. Overnight lows warm a degree or two each morning, but still remain cool across the ranchlands in the low to mid 50s and low 60s for the RGV.
High pressure will then build in across the area tonight, which will end the lake effect snow across far north-central Wisconsin. Lows could easily plummet further with prolonged clearing or be a bit warmer if clouds hang in longer. The high will slide east on Wednesday, allowing a warm front to lift north as surface winds turn southerly by the afternoon and become gusty, particularly across central and north- central Wisconsin. Despite southerly surface winds, highs on Wednesday are only expected to rise into the middle to upper 30s as model soundings show a steep low level inversion just off the surface with not much opportunity to mix into the warmer layer aloft. The isentropic lift associated with the warm front could produce some light snow or flurries/sprinkles on Wednesday across north-central Wisconsin.
Along with a wind shift to the northwest with the cold front, a few showers will be possible ahead of the front. Showers will linger overnight before the upper level trough axis shifts east of the area after midnight. Models have trended a degree or two warmer overnight which will limit the possibility of seeing a few snowflakes. I still can't rule out a few snowflakes mixed in along the highest elevations of the plateau. Wednesday will be cooler with temperatures not getting out of the 40s.
1111 AM CST Tue Dec 5 2023 - A cold front will move through the area today.
/NEW/ /This afternoon through Wednesday night/ A reinforcement of dry and slightly cooler air will filter into the region through the afternoon behind a weak cold front. A building ridge aloft and the slow return of southerly winds on Wednesday will keep afternoon temps mild with highs generally in the 60s and lows in the 40s.
Light westerly to northwesterly winds this afternoon and evening will become more northerly and increase to around 10 to 15 knots overnight tonight in the wake of a cold front. /96 (Now through Wednesday) A generally zonal flow pattern aloft will remain prevalent across the forecast area today before becoming northwesterly tonight into Wednesday as an upper level trough deepens and translates eastward across the Ohio Valley and Eastern Seaboard and adjacent Western Atlantic. An associated cold front is forecast to push through our CWA tonight in the wake of the trough. Highs today are forecast to range in the lower to mid 60s over most of the region. Lows tonight will range in the mid 30s to near 40 degrees over most locations along and north of I-10, while lows closer to the coast range in the lower to mid 40s.
A weak cold front is draped across the I-20 corridor this afternoon, with slightly cooler temperatures across the northern Big Country. Lows will again drop off into the 30s but look to remain above freezing for most locations.
1104 AM CST Tue Dec 5 2023 (The rest of today) A weak cold front continues to push through eastern Oklahoma and northwest Arkansas, with gusty northwesterly winds on its backside. Highs today should be just a couple of degrees cooler than those yesterday in most spots, but still near to just above normal.
Issued by National Weather Service Shreveport LA 1018 AM CST Tue Dec 5 2023 A tight pre-frontal pressure gradient across our region attm will get even tighter in the wake of a cold front that will be moving through NE AR, W TN and N MS later today with winds becoming northwesterly this aftn and eventually, northerly tonight. 13 Breezy conditions will prevail across the Midsouth this afternoon, following the passage of a cold front. Colder air will lag a little behind the cold front. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than today.
(Tonight through Wednesday night) Key Messages: -High pressure builds across Deep South Texas. Temperatures will remain near seasonal norms with daytime highs in the mid 70s and overnight lows in the mid 50s across the Ranchlands to low 60s across the lower Valley.
Issued by National Weather Service Mobile AL 1143 AM CST Tue Dec 5 2023 (Today through Wednesday) Relatively benign conditions continue today before a weak cold front moves through the area. This frontal passage is expected to be dry due to the low moisture in the area. Only real impacts on the weather would be to bring a shot of some cooler air and slightly stronger winds. Other than that, high pressure roughly over the ArkLaTex region will continue to build.
Dew points also have noticeably dropped from yesterday at this time with dew points in the upper 50s to lower 60s for the Lower Keys, mid 60s for the Middle Keys, and upper 60s to near 70 degrees for the Upper Keys. This front will bring a reinforcing shot of cooler temperatures, even lower dew points, and breezier conditions than observed today.
Looking for mostly dry conditions across the CWA for the next few days as high pressure centered over the Arklatex region should keep the southeastern states fairly dry. This ridge will move east Wednesday becoming centered over GA Thu.
150 PM MST Tue Dec 5 2023 -Warm and dry weather continues for the next couple days under mostly clear skies as a ridge moves across the region.
A strong high pressure system will bring well above normal temperatures through the middle of the week with widespread lower desert afternoon highs in the upper 70s to around 80 degrees in the Phoenix area.
358 PM EST Tue Dec 5 2023 A low pressure system over the area this afternoon will depart to the southeast tonight.
(This afternoon through Wednesday night) A weak meteorological discontinuity (cold front) is draped across southeast New Mexico and the Permian Basin.
1142 AM CST Tue Dec 5 2023 (Today through Wednesday) Weak east to northeasterly winds will continue today through Wednesday as a weak reinforcing surge of high pressure and drier air pushes through tonight into Wednesday morning. Late tonight through Wednesday, the jet moves off to the east as low-level high pressure (925-700mb) centers over South Texas; this will cause subsidence and mostly sunny skies on Wednesday. Highs today and Wednesday will range in the low to mid 70s with lows tonight dropping down into the mid 40s inland to the mid 50s along the Rio Grande and coast.
1100 AM MST Tue Dec 5 2023 A mild afternoon is expected today, along with gusty westerly winds as a ridge of high pressure builds over Montana.
/Issued 1053 AM CST Tue Dec 5 2023/ /This afternoon through Wednesday night/ A reinforcement of dry and slightly cooler air will filter into the region through the afternoon behind a weak cold front. A building ridge aloft and the slow return of southerly winds on Wednesday will keep afternoon temps mild with highs generally in the 60s and lows in the 40s.
226 PM EST Tue Dec 5 2023 Dry and cool conditions remain across the region this afternoon as high pressure builds over the southeast behind a cold front located over south Florida. Temperatures Wednesday morning will start out cooler than this morning, with highs reaching the lowers 60s to lower 70s under more sun than we've had today.
On Wednesday an upper level Pacific trof moves on shore with moisture beginning to make it's way into Idaho.
248 PM CST Tue Dec 5 2023 Key Message -mid week warmth remains on track As of mid afternoon, the low clouds look like they will finally erode out of the Grand Forks and Fargo areas. Despite losing this lower cloud cover, there is a lot of upstream cirrus that will spread over the area tonight. Positives for higher end temperatures are the warmer start to the day and the west to southwest winds (good warming direction).
Issued by National Weather Service Shreveport LA 1127 AM CST Tue Dec 5 2023 A tight pre-frontal pressure gradient across our region attm will get even tighter in the wake of a cold front that will be moving through NE AR, W TN and N MS later today with winds becoming northwesterly this aftn and eventually, northerly tonight. 13 Breezy conditions will prevail across the Midsouth this afternoon, following the passage of a cold front. Colder air will lag a little behind the cold front. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than today.
344 PM EST Tue Dec 5 2023 Light precipitation will be decreasing in coverage tonight as low pressure exits to the east.
(The rest of tonight) A quiet weather night is on tap for eastern Oklahoma and western Arkansas as high pressure settles over the region. Mostly clear skies and light winds will allow temperatures to drop into the mid 20s to the lower 30s across the area overnight.
(Tonight through Wednesday night) The short term forecast period features weak mid-level ridging over the area with a band of vorticity remaining mainly south of the area. For tonight, will see surface ridging build back in with an associated weak back door cold front oozing into the region. The lower dewpoints from the front will be short lived as we will shift winds around to the east by late in the day tomorrow and further around to the southeast by tomorrow night. Daytime high temperatures on Wednesday will remain near to slightly above normal, in the lower to mid 70s.
549 PM CST Tue Dec 5 2023 The cold front which has been moving across the Mid-South will exit the region tonight. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than normal.
A large ridge of high pressure will be drifting eastward over the area, and keep descent over the region. Clear skies will allow for better radiational cooling, but weak downsloping westerly winds will provide some compressional warming, especially across the lower elevations. With that all said, the plains will cool into the mid 20s to upper 30s, with areas closer to the higher terrain features on the warmer end of that range, and the valleys and mountains dropping into the 10s to mid 20s. The anomalously strong ridge of high pressure will persist over the region, keeping descent over the area.
537 PM CST Tue Dec 5 2023 (Tonight through Wednesday night) Key Messages: -High pressure builds across Deep South Texas. Temperatures will remain near seasonal norms with daytime highs in the mid 70s and overnight lows in the mid 50s across the Ranchlands to low 60s across the lower Valley.
528 PM MST Tue Dec 5 2023 -Warm and dry weather continues for the next couple days under mostly clear skies as a ridge moves across the region.
(Tonight) The passage of a cold front tonight will bring low stratus and low chances (10-30%) for some rain showers in our northeast. As the previous shift mentioned, expecting this activity to continue into the overnight hours, with perhaps a few snow flurries up in the higher elevations. Temperatures across the Tennessee Valley range from around 50 degrees to the lower 50s; although, a couple spots have dipped into the mid 40s late this evening.
548 PM CST Tue Dec 5 2023 (Tonight through Wednesday night) The short term forecast period features weak mid-level ridging over the area with a band of vorticity remaining mainly south of the area. For tonight, will see surface ridging build back in with an associated weak back door cold front oozing into the region. The lower dewpoints from the front will be short lived as we will shift winds around to the east by late in the day tomorrow and further around to the southeast by tomorrow night. Daytime high temperatures on Wednesday will remain near to slightly above normal, in the lower to mid 70s.
Both the GFS and ECMWF are similar in developing a low pressure system either in northern OK or southern KS, with moisture in the warm sector, now expected to mostly get shunted to the east of the forecast area,with a dry slot pushing across most of southern KS.
92 Previous Discussion: /This afternoon through Wednesday night/ A reinforcement of dry and slightly cooler air will filter into the region through the afternoon behind a weak cold front. A building ridge aloft and the slow return of southerly winds on Wednesday will keep afternoon temps mild with highs generally in the 60s and lows in the 40s.
Quiet and dry weather heading into tonight under high pressure influencing the Silver State.
917 PM EST Tue Dec 5 2023 Light precipitation will be decreasing in coverage tonight as low pressure exits to the east.
437 PM MST Tue Dec 5 2023 Upper ridge axis moves into the central Rockies tonight and across the central plains tomorrow.
650 PM EST Tue Dec 5 2023 Light precipitation will be decreasing in coverage tonight as low pressure exits to the east.
(This evening through Wednesday night) A large upper trof over the eastern states amplifies further tonight before moving off into the western Atlantic on Wednesday.
Dry and cool conditions remain across the region this afternoon as high pressure builds over the southeast behind a cold front located over south Florida. Temperatures Wednesday morning will start out cooler than this morning, with highs reaching the lowers 60s to lower 70s under more sun than we've had today.
532 PM CST Tue Dec 5 2023 (This evening through Wednesday night) A large upper trof over the eastern states amplifies further tonight before moving off into the western Atlantic on Wednesday.
Key Message -mid week warmth remains on track As of mid afternoon, the low clouds look like they will finally erode out of the Grand Forks and Fargo areas. Despite losing this lower cloud cover, there is a lot of upstream cirrus that will spread over the area tonight. Positives for higher end temperatures are the warmer start to the day and the west to southwest winds (good warming direction).
536 PM CST Tue Dec 5 2023 Key Message -mid week warmth remains on track As of mid afternoon, the low clouds look like they will finally erode out of the Grand Forks and Fargo areas. Despite losing this lower cloud cover, there is a lot of upstream cirrus that will spread over the area tonight. Positives for higher end temperatures are the warmer start to the day and the west to southwest winds (good warming direction).
434 PM CST Tue Dec 5 2023 (This afternoon through Wednesday night) A weak meteorological discontinuity (cold front) is draped across southeast New Mexico and the Permian Basin.
A reinforcing cold front will slide down the peninsula late overnight into Wed. A reinforcing cold front will slide down the peninsula late tonight/early Wed with increasing NWRLY flow bringing Small Craft Advisory conditions areawide. High pressure builds in from the NW behind a reinforcing cold front late overnight/early Wed.
554 PM CST Tue Dec 5 2023 (Remainder of today and tonight) Latest analysis suggests that a rather potent mid-level vort max will continue to dig east-southeastward into the TN Valley this afternoon, effectively resulting in amplification of a broader longwave trough across the eastern CONUS. As the 500-mb trough accelerates eastward and begins to outpace its related surface cyclone this evening, we expect to see the low weaken over the central Appalachians. Mid-level clouds will quickly shift southeastward into the TN Valley this evening, with additional showers possible both along the surface cold front and within the strengthening NNW flow regime in its wake. A few flakes of snow may also mix in with shower activity across the higher terrain of northeast AL/southern TN, but this would be very brief and unimpactful (if it occurs at all).
423 PM MST Tue Dec 5 2023 -Warm and dry weather continues for the next couple days under mostly clear skies as a ridge moves across the region.
202 PM MST Tue Dec 5 2023 Upper ridge axis moves into the central Rockies tonight and across the central plains tomorrow.
These showers were occurring with passage of a cold front, along with a deep mid level trough. Along with a wind shift to the northwest with the cold front, a few showers will be possible ahead of the front. Showers will linger overnight before the upper level trough axis shifts east of the area after midnight. Models have trended a degree or two warmer overnight which will limit the possibility of seeing a few snowflakes. I still can't rule out a few snowflakes mixed in along the highest elevations of the plateau. Wednesday will be cooler with temperatures not getting out of the 40s.
Both the GFS and ECMWF are similar in developing a low pressure system either in northern OK or southern KS, with moisture in the warm sector, now expected to mostly get shunted to the east of the forecast area,with a dry slot pushing across most of southern KS. Breezy south winds are expected by mid-late morning Wednesday, as low pressure deepens over the High Plains.
541 PM CST Tue Dec 5 2023 (Tonight through Wednesday night) A NW flow pattern aloft over the plains states will shift east tonight as the base of an Ern CONUS upper trough digs into the Deep South and allows for building heights over TX.
645 PM EST Tue Dec 5 2023 Dry and cool conditions remain across the region this afternoon as high pressure builds over the southeast behind a cold front located over south Florida. Temperatures Wednesday morning will start out cooler than this morning, with highs reaching the lowers 60s to lower 70s under more sun than we've had today.
1127 PM CST Tue Dec 5 2023 (This evening through Wednesday night) A large upper trof over the eastern states amplifies further tonight before moving off into the western Atlantic on Wednesday.
914 PM CST Tue Dec 5 2023 (The rest of tonight) A quiet weather night is on tap for eastern Oklahoma and western Arkansas as high pressure settles over the region. Mostly clear skies and light winds will allow temperatures to drop into the mid 20s to the lower 30s across the area overnight.
Once again, the northern third of the CWA is mostly clear or clear with cooler temps compared to the southern 2/3rds of the CWA. Overnight lows will drop into middle/upper 30s along and north of I-10 with localized pockets near freezing along the I-49 corridor north of Opelousas.
Upper level ridge will continue to break down this evening allowing for increased high clouds across the region. The upper level trough will continue east reaching the Pacific Northwest Coast Wednesday afternoon. Initially, precipitation will be orographically driven until the upper level trough reach the area late Wednesday increasing the coverage.