Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Today) Cloud cover continues to filter into the mid TN Valley from the west, as an upper trough pattern lifts further into the NE/mid Atlantic states. These clouds look to remain in place thru the morning hrs before diminishing, as weak high pressure quickly moves eastward across the Gulf region. With sfc winds remaining predom out of the south, highs this afternoon look to climb into the lower 60s for most spots.
315 AM EST Mon Dec 30 2024 A cold front will track east across our region tonight. Mild Pacific high pressure will move over the Carolinas then push offshore Monday through Monday night.
Updated at 149 AM CST Mon Dec 30 2024 - A few more showers on NYE and then trending cooler by NYE night with temperatures falling into the 30s. - Turning colder late this week as a stronger cold front moves through.
Some cu may linger ahead of a cold front over SE OK/SW AR Monday afternoon, before becoming SKC with the fropa during the evening.
1116 PM CST Sun Dec 29 2024 Updated aviation portion for 06Z TAF issuance - Patchy freezing fog is possible tonight, mainly across central and north- central Wisconsin. If fog does develop restrictions in visibility and a few slippery spots on untreated roads and bridges may impact Monday morning commuters.
As the low continues it's northern track, precipitation will diminish overnight. Discussion: Trough axis swings across the area this evening with low clouds and some scattered light rain showers or drizzle. We won't see much additional precipitation totals, but clouds, low visibility, and drizzle are expected across the higher elevations this evening into tonight. With subsidence aloft and low-level moisture, expect low clouds and some mountain/ridgetop fog to continue into Monday morning. Boundary layer convective mixing will clear out clouds on Monday afternoon with temperatures remaining about 10 degF above normal as ridging remains across the region.
Currently, an area of low pressure was moving across the Great Lakes with an associated surface cold front extending along the eastern seaboard and north Florida.
213 AM EST Mon Dec 30 2024 The cold front is currently moving through the area and high pressure will be building in for today.
1227 AM EST Mon Dec 30 2024 A cold front will track east across our region tonight. Mild Pacific high pressure will move over the Carolinas then push offshore Monday through Monday night.
123 AM EST Mon Dec 30 2024 Low pressure will move away from the area overnight.
235 AM EST Mon Dec 30 2024 A cold front will track east across our region tonight. Mild Pacific high pressure will move over the Carolinas then push offshore Monday through Monday night.
335 AM EST Mon Dec 30 2024 - Tranquil weather returns today with highs in the low/mid 40s.
1214 AM EST Mon Dec 30 2024 Low pressure tracking across the eastern Great Lakes tonight will bring additional rainfall and strong winds.
Cold front continues to move east across southcentral ID this evening, extending from the OR/NV border into SE Idaho. Isolated snow showers are winding down as cooler and drier air moves in from the northwest.
Any reprieve from yesterday's cold front will be fairly short-lived as winds become onshore again today, kicking off a return of moisture across the area.
Snow should come to an end rather quickly between midnight and 3am as the quick-moving low pressure system continues eastward. Overall, given the borderline temperatures and uncertain impacts of snow ratios and melting, confidence in exact snowfall amounts remains on the lower side.
As a result, winds will turn out of the southwest, potentially leading to slightly warmer high temps today. The upper level wave looks to eject across the Tennessee Valley tonight while sending a cold front through the region on Tuesday. Colder air will gradually usher into the region in the wake of the front Tuesday with much cooler temps in store for the new year.
However, these lower visibilities will be short-lived to some extent with the passage of the next cold front during the overnight hours. High pressure building south from the Plains will make for a dry/cool and quiet last day of the year. Highs tomorrow should be in the 60s, with lows tomorrow in the mid to upper 30s north and the lower to mid 40s central/coast.
Areas of dense freezing fog continue to plague much of central and southern MN and western WI early this morning and will likely linger after sunrise. Come early this weekend, our highs will be in the low teens to single digits, and lows reaching to at or below zero. However, the environment will strongly depend off of strengthening high pressure to our north. If the high pressure feature sinks south, this would suppress any precip chances across northern plains and redirect this system towards the OH River Valley.
- Cooler weather expected Tuesday and beyond with dry weather through the work week.
Additionally, sub-freezing temperatures are leading to freezing fog, which is settling on roads and walkways. Bridges, elevated surfaces, and untreated surfaces in particular will likely be slippery this morning. Areas south of Highway 2 will reach above freezing and any ice should melt. Meanwhile, those to the north will remain below freezing today. Temperatures will decrease from highs above freezing to the teens by mid week.
(Now through Tuesday night) Zonal flow aloft will be in place through the period as an upper- level trough digs into the central US on Monday and cruises across the Ohio River Valley on Tuesday. In response to this, a low pressure system develops over the Great Plains and lifts towards the Great Lakes region. This will help to send a strong cold front into the Deep South, with it sweeping through the local area during the day on Tuesday. High pressure builds in behind the front, allowing for a much colder airmass to advect in from the north.
Otherwise, a weak cold front is progged to pass through the BRO CWFA during the daylight hours of Tuesday, which will quickly sweep the fog away. Unfortunately, no rain is forecast with the passage of the cold front, or before it, either, which will only serve to maintain the Abnormally Dry to Moderate Drought conditions in place across the region with the exception of Cameron and Willacy counties, where drought conditions are generally not observed. In fact, another round of record high temperatures cannot be ruled-out for today, as the cold front approach from the north and west creates a bit of downsloping effect off of the neighboring higher terrain of Mexico.
A larger trough looks to swing through the southwest over the weekend, with little to no moisture expected for Arizona. On the flip side, low temperatures tonight/this morning will be a few degrees warmer than yesterday from the elevated winds. These slightly cooler temperatures won't last long as high pressure builds quickly across the Southwest. This upcoming weekend a larger low pressure system looks to slide across much of the Western United States. For us, cooler temperatures and elevated winds are likely the main result from this storm system.
Temps today will reach into the low to mid 60s across much of the area and close to 70 in portions of far southern central Georgia. The troughing should push just north of the area with the associated moisture dipping into north Georgia.
533 AM CST Mon Dec 30 2024 (Today) Cloud cover continues to filter into the mid TN Valley from the west, as an upper trough pattern lifts further into the NE/mid Atlantic states. These clouds look to remain in place thru the morning hrs before diminishing, as weak high pressure quickly moves eastward across the Gulf region. With sfc winds remaining predom out of the south, highs this afternoon look to climb into the lower 60s for most spots.
A cold front moved through our area yesterday. High pressure is building in across the area from the west. Expect patchy freezing fog tomorrow, Tuesday, morning across the area, especially for valleys and along water ways.
Tuesday, a cold front will begin making its way through the area, keeping conditions dry and quiet as post-frontal temperatures drop near 10 degrees than the previous day.
Currently, an area of low pressure was moving across the Great Lakes with an associated surface cold front extending along the eastern seaboard and north Florida. The associated cold front will push across west central and southwest Florida Tuesday night. Canadian high pressure will build over the forecast area in the wake of the front with much cooler drier air advecting across the region. The area of high pressure will push east of the region late in the weekend with return flow developing across the Florida ahead of the next developing area of low pressure over the Lower Mississippi Valley.
- Cold front will bring cooler temperatures starting Tuesday and continuing through the work week. Meanwhile, additional upper energy is moving into the Central Rockies and about to move out across the High Plains. Went ahead and inserted some fog for areas generally along and southeast of the KS Turnpike after 12z as satellite trends and obs show an area of 50 degree dewpoints working north across central/eastern OK with some fog accompanying the higher dewpoints. Confidence remains high in cooler temps for both Tue and Wed with highs generally in the 40s. This feature will provide another shot of cooler air to spill south into the area, keeping normal or slightly below normal temps in place. Strong low pressure system will push east today with strong northwest winds expected on the backside of this system.
A weak high pressure ridge is building into the region today and will remain in place into Tuesday. With high pressure building in today and tonight, expect areas of valley fog to develop during the overnight hours and continue into the morning hours. Fog has developed in the Illinois Valley, Grants Pass area, and the lower Klamath River Valley in western Siskiyou County. Chances for valley fog increase tonight into Tuesday morning with showers tapering off and high pressure in place.
557 AM EST Mon Dec 30 2024 - Tranquil weather returns today with highs in the low/mid 40s.
DISCUSSIONâ¦ A dry northwest flow aloft over the region will usher in a period of clearing skies, and lighter winds as high pressure works its way over the western US.
Developing low pressure in the Central Plains will increase the pressure gradient over South Central Texas today. With sunny skies and a somewhat low amplitude upper trough pulling away from TX, Tuesday max temps will also fall into the near to above normal value range due to the weakness of the front.
WEATHER PATTERN OVERVIEW: Transition into a more winter pattern occuring with a broad trough over central Canada drawing arctic air southward. Toward the end of the week a strong Pacific trough pushes an upper ridge over the state, bringing Pacific moisture across the arctic airmass and potentially producing a significant overrunning snow event over the weekend. Snow covered road indicated in southwest Phillips County on DOT cameras with mixed precipitation at GDV with temperatures in the lower 30s. Light rain, freezing rain, and snow, along with patchy freezing fog, will impact flight conditions through the morning. Low clouds will move into the region from the north with Canadian high pressure later today.
Temperatures will continue to run well above seasonal normals through the upcoming weekend with highs mostly in the low to mid 70s each day with only occasional cloudiness. Upper level ridging and drier conditions moved into the region over the weekend with the ridge center just off the coast of central Baja. The current weather pattern with ridging generally sitting just off the West Coast doesn't look to change through the rest of the week and this will keep our weather very quiet. The higher heights from the ridge will again allow for highs today to reach to near 75 degrees, but this will change into Tuesday as the ridge gets pushed back to the south.
728 AM EST Mon Dec 30 2024 High pressure will build across the region today. A cold front will quickly sweep across the region Tuesday, followed by high pressure through the weekend. Today: High pressure centered over the lower Mississippi Valley this morning will extend across the region today while a modest zonal flow dominates aloft.
538 AM CST Mon Dec 30 2024 Updated at 526 AM CST Mon Dec 30 2024 - A few more showers on NYE and then trending cooler by NYE night with temperatures falling into the 30s. - Turning colder late this week as a stronger cold front moves through.
- Cold front will bring cooler temperatures starting Tuesday and continuing through the work week. Meanwhile, additional upper energy is moving into the Central Rockies and about to move out across the High Plains. Went ahead and inserted some fog for areas generally along and southeast of the KS Turnpike after 12z as satellite trends and obs show an area of 50 degree dewpoints working north across central/eastern OK with some fog accompanying the higher dewpoints. Confidence remains high in cooler temps for both Tue and Wed with highs generally in the 40s. This feature will provide another shot of cooler air to spill south into the area, keeping normal or slightly below normal temps in place. The main event the next 24 hours is a cold front moving through the area Monday morning west to east from 13-17Z.
504 AM EST Mon Dec 30 2024 Low pressure tracking across the eastern Great Lakes tonight will bring additional rainfall and strong winds. -------------------------------------------------------------------- The winds have subsided quite a bit, even on the ridges. A few places may still see some gusts into the 40 to 45 mph mainly on the highest ridges in eastern Tucker County, but the threat is mainly over and as such the advisory was allowed to expire. Expect continued shower activity through day break as the trough passing to the north will continue to spawn some shower activity. Dry weather is expected tonight amid drier northwest flow and influence of surface ridging centered over the Carolinas. KEY MESSAGES: - Another period of rain likely Tuesday/Tuesday night with another low pressure system.
A cold frontal passage on Tuesday could bring some showers in the afternoon, with a cooling trend through the rest of the work week. A warm front will lift north through the area on Tuesday. Shower chances during the afternoon will be highest offshore, but chances inland, particularly for SE NC, have increased slightly as PVA along the coast ahead of the cold front could bring some increased moisture. By Tuesday night the cold front should be near or off the coast with drier air filling in and skies clearing out.
Fair weather in place to start the week with freezing fog likely late tonight and early tomorrow morning across many valleys within northern Nevada.
Dry weather returns today as an upper level ridging pattern begins to settle in over California.
Still appears that north AR wl avoid the lowest vsbys this mrng. Cooler and drier air will follow the FROPA, bringing temps down closer to normal for late Dec.
207 PM EST Mon Dec 30 2024 High pressure will build across the region today. A cold front will quickly sweep across the region Tuesday, followed by high pressure through the weekend. Today: High pressure centered over the lower Mississippi Valley this morning will extend across the region today while a modest zonal flow dominates aloft.
A larger trough will swing through the southwest over the weekend, with little to no moisture expected for Arizona. On the flip side, low temperatures tonight/this morning will be a few degrees warmer than yesterday from the elevated winds. These slightly cooler temperatures won't last long as high pressure builds quickly across the Southwest. This upcoming weekend a larger low pressure system looks to slide across much of the Western United States. For us, cooler temperatures and elevated winds are likely the main result from this storm system.
A low pressure system deepens through the Mid-MS valley and moves into the Ohio Valley this evening and through the overnight hours. This lead to a weak warm front lifting northward through our area with some overrunning moisture overnight. The dry cold front will move through the area tomorrow morning through the early afternoon. Cold air advection behind the front will lead to slightly cooler afternoon temperatures than morning temperatures across Central AL with temperatures continuing to fall through the early evening hours.
201 PM CST Mon Dec 30 2024 - Strong winds continue through tonight - Long range models are showing a storm system moving through the central plains this weekend - Lots of uncertainty regarding temperatures and precipitation chances this weekend 19z upper air analysis and surface observations show a departing surface 998 mb low in southeast Kansas with a tight pressure gradient in the high plains as the result of a high pressure center in the Colorado Rockies. Despite insolation the 850 mb temps will rise to only -2 to -4 (C) by afternoon and NBM output has mean highs in the low 40s.
- Cold front will bring cooler temperatures starting Tuesday and continuing through the work week. Meanwhile, additional upper energy is moving into the Central Rockies and about to move out across the High Plains. Went ahead and inserted some fog for areas generally along and southeast of the KS Turnpike after 12z as satellite trends and obs show an area of 50 degree dewpoints working north across central/eastern OK with some fog accompanying the higher dewpoints. Confidence remains high in cooler temps for both Tue and Wed with highs generally in the 40s. This feature will provide another shot of cooler air to spill south into the area, keeping normal or slightly below normal temps in place.
- Wind turns breezy tonight with cooler weather to follow for much of this week. Light radar returns have begun to fill in across eastern KS, and while the highest rain chances remain focused north of I-70, they should continue to increase this afternoon as vertical profiles become more deeply saturated. Additionally, the sfc cold front coming from central KS will bring brisk northwest winds this evening with CAA strengthening into Tuesday. Think warm sfc temperatures in the mid 30s would make it difficult for most snow to accumulate outside of grassy surfaces, especially with temperatures likely not falling below freezing until after precip ends. The pattern favors cooler weather to continue through the work week with highs in the 30s and 40s and lows in the teens and 20s, as northwest flow aloft continues to filter in cooler air.
259 PM EST Mon Dec 30 2024 Temperatures will trend cooler throughout the week, but remain above average through midweek.
pdf Dry weather conditions with partly cloudy to mostly clear skies will be in place throughout today with showers building overnight and into Tuesday morning as a cold front presses in from out of the northwest. High temperatures today will range between the lower to upper 70s with warmer temperatures occurring further to the south over north central Florida.
Look for high temperatures to peak in the low 60s.
A cold front approaches the area Tuesday morning bringing the passage of increased cloud cover late tonight with bases rising by and after mid am Tuesday. In response to this, a deep wave of frontal low pressure exits the central Plains and lifts east northeast across the eastern Great Lakes late in the day Tuesday. As this feature passes by well to our north, an attendant strong cold front sweeps through our area. High pressure builds in behind the front, allowing for a much colder airmass to filter in from the north later in the day Tuesday, with daily temps starting to fall as we go though the course of the afternoon. Lows tonight in the lower/mid 50s interior to 58 to 62 closer to the coast.
High pressure will then rebound with warmer daytime temperatures later in the week. A larger trough will swing through the Rockies over the weekend with dry southwest winds and cooler temperatures.
1249 PM EST Mon Dec 30 2024 High pressure will continue building over the area today with passing mainly high clouds. Key Message(s): - Mild and dry conditions as high pressure passes through the region. Weak ridging both aloft and at the surface will move through the area today. Key Message(s): - Warmer than average temperatures expected Tuesday ahead of a cold front. Tuesday and Tuesday Night: An upper low is forecast to translate from the Mid-Mississippi Valley to the Mid-Atlantic region, transitioning to an open wave. The associated trough is expected to move across the Southeast, which sends a cold front through the area. Latest MOS guidance suggests highs could be a bit warmer. After the front passes, cold air advection ramps up overnight with lows dropping closer to normal in the lower 40s.
Light winds (< 10KT) will exist in the lowest 10kft into the evening and overnight hours which will provide little in the way of mixing to dissipate the fog. Winds increase in the lowest 10kft as these features move through associated with a tightening pressure gradient, which should allow for an increase in boundary layer mixing, and thus dissipating fog. On the backside of the aforementioned features, another 500hPa trough swings though the area Tuesday. Falling Temperatures and Weekend Precipitation Chances Northwest flow and cold air advection on the backside of the low moving to our south is still expected to usher in near to below normal temperatures by mid week into the weekend.
210 PM EST Mon Dec 30 2024 High pressure moves off the East Coast tonight as a cold front approaches from the west then crosses our region Tuesday bringing some rain mainly to the mountains and I-40 corridor.
1030 AM EST Mon Dec 30 2024 High pressure will build into the area briefly today before another cold front brings light rain back on Tuesday.
Low pressure will take shape and track across MO/IL into IN tonight. The models are showing upwards to a couple hundred Joules of MUCAPE available in the lower 1 KM, so we've included a slight chance mention for about a 6 hour best chance window overnight.
A generally cooler and dry weather pattern is expected this week, with temperatures falling a little each day.
1155 AM EST Mon Dec 30 2024 High pressure will build across the region today. A cold front will quickly sweep across the region Tuesday, followed by high pressure through the weekend. Today: High pressure centered over the lower Mississippi Valley this morning will extend across the region today while a modest zonal flow dominates aloft.
1033 AM PST Mon Dec 30 2024 An exiting low pressure system today will bring drier conditions except for lingering snow showers near the Cascades and Idaho Panhandle.
Surface observations help depict a weak area of high pressure centered east of Bermuda, with a weak frontal feature stretching from the central Gulf of Mexico northward to New England. Continued light and variable winds, warmer than normal conditions, and dew points hovering around 70F will persist. A developing area of low pressure currently centered in the Great Plains will deepen and progress generally eastward over the next 48 hours. This will slowly bleed an associated cold front through the Keys around New Years Day. This fog will at times also spill into the nearshore coastal waters adjacent to the Lower Keys. A cold front is expected to bleed through Keys waters beginning late Tuesday night.
Morning occurrences of Tule Fog are expected to continue in the Central Valley through this week under a ridge of high pressure.
On the northwesterly winds came a cooler airmass compared to yesterday, and temperatures at this hour were running 5 to 10 degrees colder than yesterday morning. Winds will generally be light outside the lower Colorado River Valley where some northerly breezes will develop later this morning. It will be cooler today with high temperatures about 5 degrees cooler than yesterday.
Behind the cold front, colder air arrives late Tuesday and into Tuesday night with northwest flow enhancing orographic lift across the mountains late afternoon and into the evening.
1138 AM EST Mon Dec 30 2024 - Tranquil weather returns today with highs in the low/mid 40s.