Aikyam-Lab/Synoptic-Bench huggingface dataset:
255 PM EST Sat Jan 8 2022 Weak upper level ridging will remain over the area into early Sunday then the next upper level trough and associated low pressure system will move across the eastern U.
/This Afternoon/ Sct convection has increased this morning across E TX/extreme SE OK/SW AR, along a H925-700 theta-e ridge associated with a 40-50kt SWrly LLJ that has developed across the Ern half of the Srn Plains. The max temp forecast is again a tough call, and will be dependent on how far/how fast the warm front is able to advance N into E TX/N LA this afternoon. Max temps will occur by the end of the daylight period given the strengthening warm advection, with the 12Z progs not as bullish as earlier runs with warmer temps across the Nrn zones of extreme NE TX/SE OK/SW AR.
Warm advection is underway along with isentropic lift within the lower to mid levels. Temperatures will warm steadily into the lower 40s late this morning and afternoon highs in the lower 50s in valley locations and upper 40s atop the higher plateau areas. Overnight a warm front lifts northward across MS/AR with the eastern portion of the front clipping NW AL. As the warm front moves north into TN on Sunday, moisture advection during the day will raise dewpoints into the 50s and increase PWs to 1-1.
The next concern is the cold, but for now wind chill values look to remain warmer than 25 below, likely averaging 10 below to 20 below at the coldest later tonight.
Only minor tweaks made to overall forecast with slightly warmer temperatures expected in portions of north and central Georgia. /Issued 240 PM EST Sat Jan 8 2022/ Starting off under a dome of high pressure with clear skies, but expecting a quick-hitting cold front to push through the area during the short term, bringing with it the next round of precip chances. CAMS have been slowing the system down little by little with each run, with onset of rain for NW GA by tomorrow afternoon, with the cold front eventually pushing through the ATL metro area by tomorrow evening.
Wind gusts upwards of 45 to 50 mph remain possible through the afternoon as low pressure slides off to the east. Wind chills will fall into the 45 below zero to 35 below zero range, with the lowest values occuring in the Devils Lake Basin.
A cold front will sweep across the state from NW to SE on Sunday bringing increased NW winds and improving conditions near the end of the period.
257 PM MST Sat Jan 8 2022 Mean trough is passing through the central Rockies this afternoon with a weak cold front draping from southern Montana into northeast Wyoming. The surface pressure gradient behind the trough is continuing breezy to windy conditions from the west-northwest over much of the area, with gusts 25-30 mph common. Afternoon temperatures will be a bit cooler as well, especially east of the divide. The ridge axis will move eastward over the Intermountain West Sunday night, bringing warmer mid-level air over the forecast area, and trapping the cooler air in the lower elevations.
302 PM MST Sat Jan 8 2022 It is still snowing lightly over the high mountains, however it has mostly ended over the northern third of the CWA's mountains. Models show the upper trough axis push eastward through the rest of the CWA this evening. This is followed by northerly flow aloft late tonight and Sunday ahead of an incoming high amplitude upper ridge. The low level winds will be weak and variable this evening, then should eventually go to weak normal drainage patterns before dawn. There is a batch of moisture and light QPF over the Palmer Ridge overnight, then Sunday is dry as well. For temperatures, Sunday's highs look 0-2 C cooler than today's highs and will be below seasonal normals.
457 PM EST Sat Jan 8 2022 Rain, with a period of freezing rain northeast of Pittsburgh, can be expected as a front approaches and crosses on Sunday.
It is still snowing lightly over the high mountains, however it has mostly ended over the northern third of the CWA's mountains. Models show the upper trough axis push eastward through the rest of the CWA this evening. This is followed by northerly flow aloft late tonight and Sunday ahead of an incoming high amplitude upper ridge. The low level winds will be weak and variable this evening, then should eventually go to weak normal drainage patterns before dawn. There is a batch of moisture and light QPF over the Palmer Ridge overnight, then Sunday is dry as well. For temperatures, Sunday's highs look 0-2 C cooler than today's highs and will be below seasonal normals.
552 PM PST Sat Jan 8 2022 Updated air quality section A ridge of high pressure will remain over the area through Sunday before a weak trough of low pressure drops into the region from the north.
A LLJ streak boosted warm air advection this morning ushering temperatures above freezing quicker than originally forecasted limiting impacts from freezing drizzle this morning. A cold front is progressing towards the area and is still anticipated to move through during the overnight hours into Sunday. Cloudy skies and mist/drizzle are expected to stick around until the cold front passes. Upheaval of air ahead of the cold front may initiate an isolated shower primarily east of I-35 later tonight. These light showers and lingering areas of fog and drizzle may cause light ice accumlations on surfaces across north central MO north of US-36 as temperatures cool to near freezing ahead of the front's passage. Mid-level ridging behind the front clears out skies tomorrow; however, the large pulse of cold air keeps highs Sunday in the 20s and 30s.
A trough moves in from the west during the overnight hours and heading into Sunday morning. Low temperatures will range from the low teens along the Kansas-Nebraska border to the mid to upper teens along and south of Interstate 70. Sunday afternoon, the trough moves out of the region and northwest flow sets up over the area. High temperatures will be on the chilly side of things for most of us, ranging from the mid-30s to the low 40s across the area.
Have adjusted the lows down accordingly. 21Z sfc analysis shows the tighter pressure gradient across eastern Kentucky this afternoon and into the evening as low pressure approaches. Meanwhile, under mostly sunny skies, dewpoints are running in the low to mid 20s. They all depict flat ridging locally giving way to southwest flow in the face of an approaching and strong trough that will push into the Great Lakes on Sunday. This trough bottoms out over the region on Sunday night with the flow becoming more northwesterly. Limited heavy rain will be a possibility, as well, as a cold front pushes deeper into the area towards 18Z.
505 PM MST Sat Jan 8 2022 Allowed the High Wind Warnings to expire on time at 5 PM this afternoon. A cold front moving through during the day Saturday will make for a chilly Saturday night and a cooler Sunday. Although cooler, an upper-level ridge starts to build in Sunday which will keep skies clear and bright. This ridge also ushers in a pattern change just in time for the start of the work week.
702 PM EST Sat Jan 8 2022 A wintry mix of freezing rain or drizzle, sleet, and snow will change to rain from south to north tonight.
A line of SHRA/TSRA was just to the nw of GLH and may affect GLH and GWO this evening ahead of a cold front that will drop into the area after 15Z Sunday. Widespread MVFR/IFR cigs and TSRA wl develop Sunday along and ahead of the cold front.
The passage of a cold front has shifted all winds to the northwest. Continued the advisory until 18z Sunday in order to collaborate with neighbors, but conditions could improve a few hours sooner given the expected light winds by morning as high pressure settles in.
834 PM EST Sat Jan 8 2022 High pressure moving slowly offshore the Mid Atlantic coast will support pleasant dry weather across all of west central and southwest Florida through Sunday. On Sunday as the high continues moving eastward the low level flow will veer to the southeast during the day. High pressure moving slowly off the Mid Atlantic coast will keep a breezy easterly wind flow over the Gulf waters the remainder of tonight into early Sunday. As the high drifts further out into the Atlantic during Sunday winds will diminish as they become southeasterly which will allow for a weak sea breeze component to develop near the coast during the afternoon.
A cold front around 12Z will then shift winds from the north to northeast and become gusty once again through the end of the TAF period. As to be expected with this front, Sunday will be noticeably cooler than today, with afternoon temperatures ranging from the upper 40s to middle 50s for most, with 60s and lower 70s confined across the Rio Grande Valley and through the Big Bend Area.
619 PM EST Sat Jan 8 2022 A wintry mix of freezing rain or drizzle, sleet, and snow will change to rain from south to north tonight.
/Tonight through Saturday/ Forecast Highlights: --Freezing drizzle, areas of fog remain possible into this evening, mainly southeast. --Becoming cold and breezy tonight behind cold front.
Wind speeds have been waning however, so expect cooler temps tonight.
333 PM CST Sat Jan 8 2022 Key Messages: - Winds have increased behind a cold front across western MN and is producing areas of blowing snow.
This high has led to gradually freshening breezes across the area. Lastly, the lack of cloud cover, did allow for temperatures to climb up to near or even into the lower 80s. Going forward, the high pressure across the eastern U.
Looks as though we will be transitioning briefly from the snowy and frigid pattern of the past couple of days, to a milder and unsettled pattern tonight ahead of the next advancing cold front dropping southeast toward the region. At the same time, mid/upper level flows moistens rapidly tonight, with winds becoming more swly as a trof of low pressure drops southeast into the Southern Rockies. Still thinking most areas along and south of the OH River will pick up a good inch or two of rainfall before the cold front moves through, and colder/drier air plunges back into the forecast area from nw to se during the day Sunday.
115 PM PST Sat Jan 8 2022 Fair weather is expected through Sunday as an area of high pressure strengthens over California.
Today and Tonight: A weak cold front has exited the region with little fanfare. This should scour out much of the low-level moisture with clearing skies and pleasant temperatures. Lows should be seasonal, and range from the mid to upper 30s for the interior Valleys to the lower and mid 40s along the coast and bays.
/Issued 240 PM EST Sat Jan 8 2022/ Starting off under a dome of high pressure with clear skies, but expecting a quick-hitting cold front to push through the area during the short term, bringing with it the next round of precip chances. CAMS have been slowing the system down little by little with each run, with onset of rain for NW GA by tomorrow afternoon, with the cold front eventually pushing through the ATL metro area by tomorrow evening.
500 PM EST Sat Jan 8 2022 21Z sfc analysis shows the tighter pressure gradient across eastern Kentucky this afternoon and into the evening as low pressure approaches. Meanwhile, under mostly sunny skies, dewpoints are running in the low to mid 20s. They all depict flat ridging locally giving way to southwest flow in the face of an approaching and strong trough that will push into the Great Lakes on Sunday. This trough bottoms out over the region on Sunday night with the flow becoming more northwesterly. Limited heavy rain will be a possibility, as well, as a cold front pushes deeper into the area towards 18Z.
641 PM EST Sat Jan 8 2022 On Sunday, warm and moist air will begin to move in ahead of a cold front.
After a frigid Saturday across north-central Montana following a cold front passage, surface winds shift to westerly Saturday night, allowing for high temperatures to rebound to near normal across most of the plains Sunday, with only parts of the Hi-Line and Milk River Valley remaining frigid.
Wind gusts upwards of 45 to 50 mph remain possible through the afternoon as low pressure slides off to the east. Wind chills will fall into the 45 below zero to 35 below zero range, with the lowest values occuring in the Devils Lake Basin. A cold front is bringing light snow and blowing snow to all sites through the period.
334 PM CST Sat Jan 8 2022 Looks as though we will be transitioning briefly from the snowy and frigid pattern of the past couple of days, to a milder and unsettled pattern tonight ahead of the next advancing cold front dropping southeast toward the region. At the same time, mid/upper level flows moistens rapidly tonight, with winds becoming more swly as a trof of low pressure drops southeast into the Southern Rockies. Still thinking most areas along and south of the OH River will pick up a good inch or two of rainfall before the cold front moves through, and colder/drier air plunges back into the forecast area from nw to se during the day Sunday.
113 PM PST Sat Jan 8 2022 A ridge of high pressure will remain over the area through Sunday before a weak trough of low pressure drops into the region from the north.
Key Messages: - Winds have increased behind a cold front across western MN and is producing areas of blowing snow.
/issued 255 PM EST Sat Jan 8 2022/ Weak upper level ridging will remain over the area into early Sunday then the next upper level trough and associated low pressure system will move across the eastern U.
339 PM CST Sat Jan 8 2022 Through Sunday: High pressure ridging from a high centered over the east coast is weakening over the area this afternoon, as a short wave/cold front approach from the west. Lows tonight will range from the upper 40s in the northeast to the low 60s in the southwest.
348 PM CST Sat Jan 8 2022 An upper level disturbance traversing the northern states will push a cold front through western Kansas this evening. A southern stream disturbance approaching the high plains region will result in mid to high level cloud cover tonight. With this cool air mass still in place Sunday, temperatures aren't expected to recover much above the lower 30s to lower 40s, with the coolest readings over the snow covered areas such as Hays and Scott City.
Another frosty night is on tap tonight, followed by warmer temperatures on Sunday under mostly clear skies.
645 PM EST Sat Jan 8 2022 Rain, with a period of freezing rain northeast of Pittsburgh, can be expected as a front approaches and crosses on Sunday.
An upper level disturbance traversing the northern states will push a cold front through western Kansas this evening. A southern stream disturbance approaching the high plains region will result in mid to high level cloud cover tonight. With this cool air mass still in place Sunday, temperatures aren't expected to recover much above the lower 30s to lower 40s, with the coolest readings over the snow covered areas such as Hays and Scott City.
After weeks of very active weather, we're finally getting a break as high pressure is beginning to build over eastern Idaho. The only concern weather-wise will be the potential for some low clouds and fog/freezing fog late tonight.
438 PM MST Sat Jan 8 2022 Water vapor shows positively tilted trof extending from the Desert SW through the Northern Rockies/Plains. At the surface, associated cold front has swept through the entire forecast area with gusty northwest winds and steady or slowly falling temps as 1028mb arctic high builds southeast from southern ALTA. Warm front begins to move northeast across the region on Sunday with highs generally back into the 30s to lower 40s. Dry and mild conditions will then prevail through mid week as upper ridge covers the Northern Rockies.
Deep-layer southwesterly flow will persist across the region overnight, downstream from an amplified mid-level trough progged to advance east-southeastward across Manitoba/Ontario. We expect the coverage of showers to increase after Midnight in the warm/moist advection regime to the southeast of the system's related cold front, with latest guidance suggesting that the greatest areal coverage of precipitation through 12Z will occur across the northwestern half of the CWFA. A wet Sunday is on tap as the low level jet axis veers to the southwest and west-southwest through the day. Coverage of showers and thunderstorms will expand by midday as the cold front slices into southern TN and northwest AL.
/issued 541 PM CST Sat Jan 8 2022/ Surface analysis this afternoon places a 1037 mb ridge of high pressure over the Mid-Atlantic States while an area of low pressure is in the Texas/Oklahoma Panhandle. Temperatures have improved across the Mid-South as a combination of a tightening pressure gradient and southerly winds on the back side of high pressure is advecting warmer air up into the Lower Mississippi Valley. Short term models including Convective Allowing Model solutions (CAMs) indicate rain chances will continue to increase as a cold front in the Central/Southern Plains moves into the Middle/Lower Mississippi Valleys tonight into Sunday morning. The aforementioned cold front will gradually begin to depart the Mid-South later Sunday with cold high pressure filtering back into the forecast area.
1004 PM EST Sat Jan 8 2022 On Sunday, warm and moist air will begin to move in ahead of a cold front.
South/east of the cold front. the cold front will continue to slide southeastward across the CWA with it located across far Southeast Oklahoma and West Central Arkansas around 12z Sunday. temps ahead of the cold front will remain nearly steady or rise slightly during the night. temps/dewpoints should start to fall with temps in the low 30s near the Kansas border to the upper 40s near the Red River by 14z Sunday. The gusty winds will help to create wind chill values in the low 20s to mid 30s behind the front across Northeast Oklahoma and far Northwest Arkansas by early Sunday morning.
339 AM EST Sun Jan 9 2022 Discussion/Marine - Falling Temperatures Behind Cold Front Today A cold front will move into the area around sunrise this morning squashing any lingering drizzle and resulting in temperatures gradually falling throughout the day today.
822 PM MST Sat Jan 8 2022 After a frigid Saturday across north-central Montana following a cold front passage, surface winds shift to westerly Saturday night, allowing for high temperatures to rebound to near normal across most of the plains Sunday, with only parts of the Hi-Line and Milk River Valley remaining frigid.
127 AM MST Sun Jan 9 2022 08z surface analysis had lee trough/developing warm front from central MT into eastern CO. Water vapour loop depicted upper ridge over the western CONUS.
311 AM EST Sun Jan 9 2022 A wet day in store for eastern KY today as widespread rain moves into the area ahead of an approaching cold front. At the upper levels, a trough will dive down from the northern plains into the eastern US by this evening, while a ridge builds into the western US. Ahead of the cold front, warm and moist air will nose into the area. Models are in good agreement that rain will overspread the region from NW to SE with likely/def Pops from roughly 9-21Z today, and then tapering off as the cold front crosses the area.
However, do expect temperatures to rise a bit late in the night as clouds increase so still expect at most some extremely brief and limited coverage of freezing light precipitation in the northeast valley (if any occurs at all) when the precip begins. McD Chattanooga Airport, TN 53 30 46 26 43 / 100 50 0 0 0 Knoxville McGhee Tyson Airport, TN 52 26 42 21 39 / 100 60 0 0 0 Oak Ridge, TN 50 24 42 21 39 / 100 50 0 0 0 Tri Cities Airport, TN 50 22 37 17 35 / 100 70 0 0 0 TN.
1048 PM MST Sat Jan 8 2022 Allowed the High Wind Warnings to expire on time at 5 PM this afternoon. A cold front moving through during the day Saturday will make for a chilly Saturday night and a cooler Sunday. Although cooler, an upper-level ridge starts to build in Sunday which will keep skies clear and bright. This ridge also ushers in a pattern change just in time for the start of the work week.
(Today) A cold front extends from northwest Arkansas into southeast Oklahoma early this morning. With the passage of the cold front, temperatures are set to be below normal for this time of year.
342 AM EST Sun Jan 9 2022 A wet day in store for eastern KY today as widespread rain moves into the area ahead of an approaching cold front. At the upper levels, a trough will dive down from the northern plains into the eastern US by this evening, while a ridge builds into the western US. Ahead of the cold front, warm and moist air will nose into the area. Models are in good agreement that rain will overspread the region from NW to SE with likely/def Pops from roughly 9-21Z today, and then tapering off as the cold front crosses the area.
143 AM EST Sun Jan 9 2022 Widespread rain will end as a cold front sweeps through the area today. High pressure will build into the region bringing a return to below normal temperatures for the beginning of the work week.
1020 PM EST Sat Jan 8 2022 Rain will develop across the area tonight and continue into Sunday, ending as a cold front moves through. High pressure will build in bringing a return to below normal temperatures for the beginning of the work week. Cold front will cross the area during the day. Gusts will diminish in the evening and clouds will decrease as high pressure starts to build in. To start the work week, much of the Midwest and Great Lakes region are enveloped by an upper level trough.
A weak ridge at the surface is creating easterly wind flow over the Keys today; the easterly winds have advected higher moisture content into the region, leading to the continued generation of showers and a few isolated thunderstorms for the Keys and the local waters.
A weak SFC/LL boundary currently stalled near the MS river will be on the move shortly as a warm front, with a trailing cold front not very far behind. Both this boundary and cold front will push across the mid- state this morning, but the cold front will slow up some across the south early this afternoon as a wave moves up along it. This cold front will long gone tonight and cold air will return quickly.
1006 PM MST Sat Jan 8 2022 Mean trough is passing through the central Rockies this afternoon with a weak cold front draping from southern Montana into northeast Wyoming. The surface pressure gradient behind the trough is continuing breezy to windy conditions from the west-northwest over much of the area, with gusts 25-30 mph common. Afternoon temperatures will be a bit cooler as well, especially east of the divide. The ridge axis will move eastward over the Intermountain West Sunday night, bringing warmer mid-level air over the forecast area, and trapping the cooler air in the lower elevations.
Clouds continue to thicken over the CWA this evening ahead of an approaching low pressure system to our west. /22/ Prior discussion below: Through Sunday: High pressure ridging from a high centered over the east coast is weakening over the area this afternoon, as a short wave/cold front approach from the west. Lows tonight will range from the upper 40s in the northeast to the low 60s in the southwest.
253 AM CST Sun Jan 9 2022 Key Points: - Warmer temperatures still on track for much of this week - Chance of precipitation for the end of the work week Early this morning a mid level trough was moving eastward over the eastern Plains while an upstream ridge was moving into the western states. Cold high pressure will build southward into northeast Kansas today as cold air advection continues. Heights rise through much of the work week as a ridge builds into the southern and central Plains.
with occasional SHRA/TSRA expected as a cold front drops SE into the state. but expect conditions to improve by late Sun afternoon as the cooler/drier/more stable air moves into the state behind the cold front.
By daybreak the cold front will be exiting the area, and the CWA will be precipitation-free. Northwesterly flow will dominate the region behind the cold front, advecting cooler air into the region through the morning hours. Temperatures will fall slowly but steadily throughout the day, the high temperature having already occurred at most stations.