Aikyam-Lab/Synoptic-Bench huggingface dataset:
For tonight, cool and moist air in the boundary layer will persist, allowing for widespread low cloudiness, patchy fog and overnight lows in the lower 50s to near 60. Some of the hi-res models show some weak shower activity is possible out west across the Rio Grande plains as southeasterly flow in the low-levels begins to strengthen.
546 PM CDT Sat Apr 8 2023 (The rest of Today and Tonight) Five star weather will continue through the rest of the day and into tonight under the influence of modest surface and mid level ridging. Clear skies and light easterly winds will prevail, with low humidities allowing temps to top out in the lower to mid 70s later this afternoon across the region. Most locations will see lows in the lower to mid 40s, with a few of the normally cooler locations dipping down into the mid to upper 30s for lows tonight.
811 PM MDT Sat Apr 8 2023 Water vapor imagery showing upper trof back axis moving into northwest Colorado this evening with a band of mid level moisture over central and eastern Colorado. The upper trough responsible for the cloudiness and light shower activity is expected to push eastward across the CWA overnight. Sunday looks to have northwestly, then northerly flow aloft as an upper ridge is expected to be pushing eastward into western Colorado by the end of the day.
Some localized fog/freezing fog was noted near a few of the lakes, but wl dissipate soon after sunrise. Highs today wl range fm the mid 50s to the lower 60s. Winds wl shift to the N/NE behind the fntl passage, bringing a bit cooler air.
While the Freezing Fog Advisory was allowed to expire earlier this morning as temperatures rose above freezing, there is still some patchy areas of dense fog ongoing as of 9am.
Made a few adjustments to the sky cover to capture the satellite trends better, as well as the highs, although the temperature adjustments were minor enough to forego a new set of zones this go around. Dense fog and localized dense freezing fog occurring in valleys this morning mainly west of Interstate 75. Analysis and Discussion: The weather pattern is characterized by flat upper ridging situated between active northern and southern jet streams moving across the Gulf Coast and Great Lakes regions, respectively. The low cloud coverage will likely limit fog formation at least somewhat tonight into Friday morning.
This high will eventually center itself overhead by 12z Friday, and with light winds and the center of the cold air mass overhead, we're setting up for rather cold lows Friday morning. Only tricky aspect of the low temp forecast will be cloud cover. Current forecast is around the 25th percentile, but if mid/high clouds hang on a little thicker over southern portions of the CWA, readings could end up a bit warmer. Key Messages: - Some cooler days, then warming up into next work week.
Early afternoon satellite imagery was showing a loosely organized trough over the region with embedded light to moderate snowfall in some areas. Numerical models continue to promise that a closed low circulation will develop this afternoon centered near Mountain Home with enhanced snowfall developing primarily south of a line from Sun Valley to Idaho Falls. The upper low is expected to pivot a little further south towards Wendover overnight and then into the St George region by noon Friday.
1133 AM CST Thu Nov 23 2023 (Today and tonight) Another clear night will bring in temperatures right around the freezing mark for this morning's low temperatures. The disturbance will end up developing cloud cover overnight, which will keep tonight's low temperatures in the upper 40s (a bit warmer than this morning).
Cloud cover will keep things a bit warmer tonight but still looking at lows in the 30s, fog will also be possible once again but should not be as dense given the expected cloud cover. Cloud cover will be clearing as we head into Friday night and that will bring another cool night with lows in the low to mid 30s.
246 PM EST Thu Nov 23 2023 High pressure building into the region today will allow continued clearing overnight in most sections.
The lowest elevations are seeing rain or rain/snow mix with snow levels of 3000-3500 feet.
Temperatures along the island chain are in the mid to upper 70s with dew points close behind in the lower to mid 70s. Low to mid level stratus decks have settled over our area with particularly lower cloud bases over the Lower Keys.
Per recent satellite imagery and recent station observations, large areas of patchy stratus below 5,000 feet are widespread across area basins along with isolated fog, notably in in the northern Rogue Valley/Grants Pass area and in the lower Klamath River Valley in western Siskiyou County. This low cloud cover has kept low temperatures fairly mild for this time of year by preventing radiative cooling overnight.
(Tonight) High clouds have spread across the region in advance of a short wave and associated low pressure system moving across the Gulf Coastal Plain region. Clouds have gradually thickened during the day and have helped keep afternoon temperatures mainly in the low/mid 50s. However, dry air in the low-levels may lead to evaporation of rain before reaching the sfc.
If winds remain slightly higher, lows will be a few degrees warmer.
Overnight, expect a dry cold front to approach the Mid-South.
A strong cold front will be knocking on our northern doorstep by early morning. This cold front will continue to slowly sag south through the area through the afternoon hours. A passing weak disturbance is expected to result in a weak area of low pressure centered over the region. This low pressure may act to slow the cold front's advance through the region, likely stalling the front just north of the Pecos. Areas to the south remain pleasant with temperatures in the 60s and 70s ahead of the cold front.
Dry tonight and Friday with slightly warmer temperatures. Discussion: Weak flow aloft is present across the region while an upper low is moving across south Texas. Upper level moisture/cloud cover is moving northward from this low and is beginning to move into far southern portions of the area. High pressure at the surface will keep conditions calm. Clouds should begin to clear our by Friday morning with more sunshine expected and slightly warmer temperatures.
With northerly winds in place, temperatures will be slightly cooler than they have been over the past several days. Highs today will generally range from the upper 70s west of Lake Okeechobee to the lower 80s across the east coast metro areas. At the surface, the latest guidance continues to show a disorganized wave of low pressure trying to develop in the Gulf of Mexico. High temperatures on Friday will generally range from around 80 across the Lake Okeechobee region to the lower 80s across the east coast metro areas.
(Tonight through Friday night) For tonight, with the upper low moving out of the area, clouds will thin out if not disappear. High pressure will shift east across the North Gulf Coast on Friday, causing light winds to steady up from the northeast and east. As winds start to veer, a weak coastal trough will take the place of the front and will stretch north along the North Mexican and Lower Texas Coastlines.
Per recent satellite imagery and recent station observations, large areas of patchy stratus below 5,000 feet are widespread across area basins along with isolated fog, notably in in the northern Rogue Valley/Grants Pass area and in the lower Klamath River Valley in western Siskiyou County. This low cloud cover has kept low temperatures fairly mild for this time of year by preventing radiative cooling overnight. Inland, conditions are mainly VFR with areas of MVFR in Douglas County (including KRBG) and across eastern Lake County, patchy IFR in the lower Klamath River Valley in western Siskiyou and areas of mountain obscuration.
232 PM CST Thu Nov 23 2023 - Dry weather forecast today with progressively cooler temperatures into the weekend.
-thor MORNING DISCUSSION: Synoptic Setup: Northwest flow is set up over the Montana and Alberta with a strong trough and underlying arctic air passing through Montana. Further upstream in the northwest flow another ridge has developed over the Gulf of Alaska and runs onshore over the Alaska Panhandle and northern British Columbia. A weak trough sets behind that which curls back into the coldest air of the northern Hemisphere which currently sets over the center of the Arctic Ocean. Today through Friday night: The trough aloft is currently strung out from west to east across Montana as cold high pressure moves through at the surface. This stratified atmosphere will shut off any remaining snow by mid morning and prevent daytimes highs from reaching above freezing for these periods.
The H3 speed max that rounded the base of the west coast long wave upper trough can easily be seen this morning in WV imagery as a comma cloud structure moving through northern Mexico. Fri will begin to get enough breaks in the cloud cover to warm up into the low to mid 60s before the next system starts to make itself known by bringing cloudy skies back during the day Sat.
558 PM CST Thu Nov 23 2023 (Tonight through Friday night) This evening will be pleasantly cool and drying off with the moisture from a weak upper low pulling away into East TX. A longer period of sunshine for Friday will lead to a warmer afternoon for most of the area.
Mostly clear to partly cloudy skies tonight will allow temperatures to drop into the 40s inland and to the lower 50s along the coast. Moisture increases Friday into Friday night as high pressure shifts eastward and causes low-level flow to shift more southeasterly.
623 PM EST Thu Nov 23 2023 High pressure building into the region today will allow continued clearing overnight in most sections.
(This afternoon through Friday) 500mb analysis shows a mid level low pressure center across far southern TX this afternoon. The low center will begin to move northeast overnight and fill. At the surface, high pressure will continue through the period.
/Issued 327 PM CST Thu Nov 23 2023/ /Friday Night Onward/ To start off this weekend, the aforementioned weak cold front will be able to make it a bit south of the Red River late Friday before stalling, but should not have much impact on our sensible weather on Friday night aside from a more north-northeasterly shift in wind direction.
515 PM CST Thu Nov 23 2023 (Tonight) High clouds have spread across the region in advance of a short wave and associated low pressure system moving across the Gulf Coastal Plain region. Clouds have gradually thickened during the day and have helped keep afternoon temperatures mainly in the low/mid 50s. However, dry air in the low-levels may lead to evaporation of rain before reaching the sfc.
pdf Weak high pressure will be over the region this afternoon and evening, as moisture begins to stream northeast across area from a weak wave over the Gulf. These showers are expected to be fairly light, as the low levels are dry. The cloud cover will keep it from getting quite as cool Tonight, with lows generally in the lower to mid 50s.
Some MVFR ceilings will also be possible Friday afternoon and evening, with the highest chances over southwest Florida around KRSW, KFMY, and KPGD.
Cooler highs Friday in the upper 30s to around 40 in central IL and low to mid 40s in southeast IL.
Overnight low temperatures are expected to fall into the low 20s to teens. High pressure will gradually build into the Great Lakes Region starting tomorrow morning, which will lead to the breezy winds diminishing. Skies are expected to be mostly clear Friday with cooler high temperatures in the low 30s.
* Cooler Friday with highs in the 30s A cold front has slipped through the area this afternoon and will usher in a cooler airmass to close out the holiday week with highs on Friday in the 30s.
Key Message: 1) Quiet and dry to close out the Thanksgiving holiday into Friday High pressure currently centered just north of North Dakota, with ridging extending into the northern Plains and Midwest, will continue to build southeast into the area to close out the week. This will leave us with quiet weather, dry conditions and cooler Canadian air. Look for lows tonight to fall into the teens/20s, with highs Friday ranging from the low to mid 30s.
658 PM EST Thu Nov 23 2023 High pressure building into the region today will allow continued clearing overnight in most sections.
Some high clouds, temperatures a little warmer than last night and maybe some patchy fog after midnight.
As a trough in the Great Basin moves east-southeast across the western states, there will be stronger south to southwest afternoon winds Friday and temperatures a few degrees cooler than today with highs in the lower-70s west of Tucson and in the mid-60s east of Tucson.
514 PM CST Thu Nov 23 2023 - Dry weather forecast today with progressively cooler temperatures into the weekend.
A winter storm passing through the Mountain West will soon bring rain, snow, and much cooler temperatures.
903 PM EST Thu Nov 23 2023 A dry cold front will pass through the area Friday afternoon.
The expansive Canadian upper low has introduced some of the driest air of the season with single digit dewpoints northwest in the low level cyclonic flow, cold advection, and subsidence.
A few clouds in Lake of the Woods and Beltrami county area continue over the next several hours as cooler winds move over the warmer lake waters.
A dry and shallow cold front will move south through the area beginning this evening in northeast OK, eventually stalling out near the Red River by daybreak Friday. Low temperatures will range from near freezing across the KS- OK border to mid 30s for much of the rest of the area.
Dry conditions will persist through the late afternoon as it will take time for the lower levels to sufficiently moisten. A surface cold front will advance east across the Central Plains, approaching the Mid-South Region toward midnight.
615 PM EST Thu Nov 23 2023 A weak cold front tonight will usher in slightly colder air for Friday into the upcoming weekend.
945 PM EST Thu Nov 23 2023 An upper low across the Lower Mississippi Valley is bringing an increase in high clouds to the region tonight and Friday, but dry air and high pressure at the surface will mitigate any precipitation chances. Dry tonight and Friday with slightly warmer temperatures. Discussion: Weak flow aloft is present across the region while an upper low is moving across south Texas. Upper level moisture/cloud cover is moving northward from this low and is beginning to move into far southern portions of the area. High pressure at the surface will keep conditions calm. Clouds should begin to clear our by Friday morning with more sunshine expected and slightly warmer temperatures.
315 PM CST Thu Nov 23 2023 * A cold front will pass tonight. Cooler conditions are expected for the remainder of the holiday weekend.
904 PM EST Thu Nov 23 2023 A weak cold front tonight will usher in slightly colder air for Friday into the upcoming weekend.
506 PM CST Thu Nov 23 2023 * A cold front will pass tonight. Cooler conditions are expected for the remainder of the holiday weekend.
426 PM EST Thu Nov 23 2023 High pressure building into the region today will allow continued clearing overnight in most sections.
Upper level low making its way across the Silver state tonight and Friday delivering snow for the holiday weekend.
At the surface, high pressure will continue to build into the region throughout the period.
229 PM MST Thu Nov 23 2023 A trough over the Great Basin will migrate southeastward in the coming days. This will lead to somewhat elevated wind speeds Friday and cooler temperatures across Arizona this weekend.
Cloud cover will keep temps warmer tonight compared to this morning with lows in the upper 40s and low 50s inland with mid 50s at the coast. pdf Weak high pressure will be over the region this afternoon and evening, as moisture begins to stream northeast across area from a weak wave over the Gulf. These showers are expected to be fairly light, as the low levels are dry. The cloud cover will keep it from getting quite as cool Tonight, with lows generally in the lower to mid 50s.
In addition, gusty north-northeast winds will continue tonight across exposed ridges and persist into Friday. Dry air has moved in at the higher elevations and the dewpoints are in the teens or single digits. These clear skies should allow temperatures to drop near or below freezing in many areas tonight. Tonight winds will remain elevated on the ridges, but diminish in the valleys and along the coast. Friday night temperatures may be slightly cooler than Thursday night with lighter winds and continued drying.
Cloud cover associated with the low will remain in place across the ArkLaTex through tonight with clearing expected from the west early on Friday as upper-low opens into an trough and exits into Mississippi and Alabama. However, midlevel trough to outrun 700 mb low allowing for some clouds to linger through Friday. In terms of temperatures, instability and increased cloud cover across the region will allow for slightly warmer overnight lows tonight compared to this morning with most locations in the upper 30s to lower 40s. However, a reinforcing shot of cold air from high pressure rebuilding from the north will maintain cold temperatures with highs in the lower 60s on Friday and overnight lows in the 30s on Friday night.
700 PM CST Thu Nov 23 2023 (Tonight through Friday night) For tonight, with the upper low moving out of the area, clouds will thin out if not disappear. High pressure will shift east across the North Gulf Coast on Friday, causing light winds to steady up from the northeast and east. As winds start to veer, a weak coastal trough will take the place of the front and will stretch north along the North Mexican and Lower Texas Coastlines.
Low temperatures tonight are forecast cooler than today with less cloud cover allowing for more radiational cooling.
252 AM CST Fri Nov 24 2023 Cooler than normal temperatures will be seen through the weekend.
/SEC (This afternoon through Friday) 500mb analysis shows a mid level low pressure center across far southern TX this afternoon. The low center will begin to move northeast overnight and fill. At the surface, high pressure will continue through the period.
1013 PM EST Thu Nov 23 2023 High pressure building into the region today will allow continued clearing overnight in most sections. Winds will gust into the low to mid 20s (mph) today and the teens on Saturday. A moisture starved cold front will drift southeast across the Commonwealth tonight.
Lows tonight will fall into the low 40s across the area.
1116 PM CST Thu Nov 23 2023 (This evening through Saturday) An increase in high clouds were noted across AR on this Thanksgiving Day as moisture streams Nwrd from an upper low tracking invof TX/LA Gulf Coast. Moving ahead, the upper pattern will feature a low-amplitude trough digging across the Rockies. At the surface, low pressure is anticipated to develop in lee of the Rockies. Until then, mostly dry conditions are expected across AR with a benign cold front pushing across the state from N to S on Friday. By Saturday, readings will top out about 5 degrees cooler than Friday.
Although winds will remain light overnight, the increase in cloud cover should help keep temps several degrees warmer, ranging from the mid 30s to lower 40s.
1031 PM CST Thu Nov 23 2023 * Cold front arrived today; much cooler Friday * Winter storm likely on Saturday; especially for areas along and west of the Kansas Turnpike. The much advertised strong cold front has arrived today, and a decent temperature gradient is present this afternoon with low 40s along I-70 and low 60s across southeast Kansas.
Another cool day is on tap today with highs struggling to make it above freezing with strong Canadian high pressure in place.
1100 PM CST Thu Nov 23 2023 * A cold front will pass tonight. Cooler conditions are expected for the remainder of the holiday weekend.
Fair wx will continue Saturday with high pressure still in control of the wx pattern. Southwest flow will develop Saturday night on the back side of the departing ridge and out ahead of the next system.
Have delayed the onset of clearing skies for central and northern MT and have expanded/extended the area/duration of light freezing drizzle and freezing fog. 00z KGTF RAOB indicates near saturation below the DGZ, resulting in patchy to areas of light freezing drizzle development. This drizzle should gradually diminish from north to south overnight as drier air in the lower levels gets wrapped into the area. However, sheltered valleys have been experiencing some light freezing drizzle and freezing fog, resulting in a glaze of ice developing. Near sfc wind speeds will gradually weaken overnight as high pressure influences area weather. The upper level low that is producing the light snow over the CWA this afternoon continues to move southward into the Great Basin area by later this evening.
1025 PM CST Thu Nov 23 2023 (This evening through Friday) Upper level low across South Texas will continue to shift east and away from the area this evening. Cold front arrives during the day on Friday and a cooler air mass will move into the area. This has highs in the low to mid 60s for most areas.
Current temperatures are in the low 40s to low 50s with mostly calm winds at the surface. A rampant low pressure, currently churning over the state of Louisiana, continues to move northeast bringing moisture to our southern most Mississippi counties. Tomorrow is shaping up to be another pleasant, partly cloudy day with highs in the upper 40s to lower 60s as a weak cold front slowly pushes through.
240 AM EST Fri Nov 24 2023 Short Term/Marine -Mostly sunny today, increasing clouds Saturday A cold dry airmass continues to flow into the cwa on the heels of north winds behind the cold front that passed through yesterday. Fair wx will continue Saturday with high pressure still in control of the wx pattern. Southwest flow will develop Saturday night on the back side of the departing ridge and out ahead of the next system.
235 AM EST Fri Nov 24 2023 High pressure building into the region today will allow continued clearing overnight in most sections. Winds will gust into the low to mid 20s (mph) today and the teens on Saturday. A moisture starved cold front will drift southeast across the Commonwealth tonight.
The lack of high clouds in northern parts of the area should help the lows drop a little lower than to the south. The high moving into the region Friday will bring quiet weather with mostly sunny skies. Highs should reach around 30 or perhaps into the lower 30s. Overnight low temperatures are expected to fall into the low 20s to teens. High pressure will gradually build into the Great Lakes Region starting tomorrow morning, which will lead to the breezy winds diminishing. Skies are expected to be mostly clear Friday with cooler high temperatures in the low 30s.
Given the low amplitude synoptic pattern, temperatures will remain seasonable through the short-term.
Low temperatures this morning are expected to be mainly in the low 40s in north Georgia and mid to upper 40s in central Georgia. Elected to run on the lower side of guidance to account for the influence of the wedge.
Have delayed the onset of clearing skies for central and northern MT and have expanded/extended the area/duration of light freezing drizzle and freezing fog. 00z KGTF RAOB indicates near saturation below the DGZ, resulting in patchy to areas of light freezing drizzle development. This drizzle should gradually diminish from north to south overnight as drier air in the lower levels gets wrapped into the area. However, sheltered valleys have been experiencing some light freezing drizzle and freezing fog, resulting in a glaze of ice developing. The upper level low that is producing the light snow over the CWA this afternoon continues to move southward into the Great Basin area by later this evening.
1252 AM EST Fri Nov 24 2023 High pressure building into the region today will allow continued clearing overnight in most sections. Winds will gust into the low to mid 20s (mph) today and the teens on Saturday. A moisture starved cold front will drift southeast across the Commonwealth tonight.