Aikyam-Lab/Synoptic-Bench huggingface dataset:
540 AM CST Thu Jan 27 2022 Lots of cloud cover streaming across the area early this morning ahead of a cold front that has pushed across our northern counties overnight and as of 4 AM is approaching the I-80 corridor. expect temperatures to continue to modify and warm across the area as heights aloft begin to increase as a ridge of high pressure transitions across the intermountain west.
Friday, clearing skies and modest westerly winds should allow the subtle warming trend to continue, with many locations sneaking upward into the lower 50s.
Behind the front, Canadian high pressure will be dropping into the northern plains, keeping temperatures from recovering much if at all today. As the high sinks southward, flow across Montana will slowly back, spreading warm air eastward across the state.
Associated cold front will be pushing across the area late tonight.
06z data has a decaying warm front running from near KDLH south through central Iowa. A cold front ran from northeast Minnesota into South Dakota with the primary arctic front just crossing the international border. Breezy with a gradual warming trend will be seen through about mid- day Thursday before the cold front arrives.
After a quiet day today, windy conditions develop tonight as a dry cold front moves through the region.
Temperatures where above freezing yesterday causing some snow melt. As we headed throughout the night temperatures dropped below freezing into the single digits to teens.
High pressure will continue to result in areas of fog and low clouds, especially in the night and morning hours. A cold front will reach the area over the weekend.
329 AM CST Thu Jan 27 2022 06z data has a decaying warm front running from near KDLH south through central Iowa. A cold front ran from northeast Minnesota into South Dakota with the primary arctic front just crossing the international border. Breezy with a gradual warming trend will be seen through about mid- day Thursday before the cold front arrives.
Short term models indicate an longwave upper level trough axis and an associated surface cold front will move into the Lower Mississippi Valley late tonight into Friday morning.
The next upper level trough digs south on Friday with an associated cold front moving toward the region bringing more clouds and another chance of rain with it.
503 AM CST Thu Jan 27 2022 Primary issue in the near term is ongoing patchy freezing drizzle from the Hwy 14 corridor into SW MN. Forecast soundings suggest temperatures in the existing stratus is very near but perhaps just warmer than the ice growth zone thus resulting in the patchy drizzle/freezing drizzle. Upper level ridging further establishes itself across the western CONUS for Friday into the weekend placing our area in the all-to- familiar northwest flow regime.
Skies will clear today as high pressure builds into the area. Even with the sunny skies, expect temperatures to be near to slightly cooler than they were yesterday. In the wake of a cold front that pushed through the area overnight, high pressure will build into the region today, bringing clearing skies and putting an end to any lingering light snow showers. Even with these clear skies, expect temperatures to be slightly cooler than they were yesterday thanks to the colder air behind the front. Upper level ridging will build into the area for the day on Friday, bringing warmer and breezier conditions to the area. Under this ridge, temperatures will be quite warm, with highs across the plains reaching the upper 40s/low 50s. This upper level ridge will stick around through the weekend, allowing for continued warm and breezy conditions.
A cold front will accompany the wave. Although cooler today, the hybrid airmass will keeps highs about average or just slightly below for this time of year. The downslope flow will tend to dry out the lower levels and lead to elevated fire weather concerns by Friday afternoon across the Panhandle and western Sandhills. A large ridge of high pressure will be in place across the Rockies to start the weekend.
A cold front will move through tonight with wind shifting to the N/NE. This trough will track down across UT today into AZ/NM by evening before pushing through NM overnight. As of 08z have sub freezing temps for most of the area with a Freezing Fog Advisory in effect this morning for SE NM. Temps should turn much warmer today with highs climbing back into the 50s. However a cold front will blow in during the afternoon and pass through the area overnight. After a chilly Friday morning with lows in the 20s and 30s look for highs Friday to end up several degrees cooler and be in the 40s and 50s.
Patchy freezing fog is developing across portions of northern and eastern Elko County this morning, which can be seen both on RGB Satellite imagery as well as an NDOT web camera up near the Idaho border in Jackpot. In addition to adding patchy freezing fog to portions of Elko County, slight adjustments to low temperatures were made as a few locations have already dropped below forecast lows for this morning. The amplified ridge along the west coast early this morning continues to bring a cool and dry northerly flow to NV. Through the short- term period as the ridge along the west coast approaches the Great Basin, temperatures will trend warmer.
432 AM MST Thu Jan 27 2022 12Z TAF CYCLE VFR conditions prevail and are generally forecast to persist, except for at KROW where VLIFR conditions prevail in freezing fog at won't improve until between 15-17Z. A cold front will push south across the area late today and overnight, resulting in gusty northerly winds.
The amplified ridge along the west coast early this morning continues to bring a cool and dry northerly flow to NV. Through the short- term period as the ridge along the west coast approaches the Great Basin, temperatures will trend warmer.
301 AM CST Thu Jan 27 2022 At 3 AM, southwest winds ahead of an approaching warm front have allowed temperatures to warm across the area. An arctic cold front will move through the area during the late morning and early afternoon. As high pressure builds into the region tonight, skies will gradually clear and wind speeds will diminish.
After starting the morning off in the -20s and -10s, an impressive surge of warm air advection has continued to warm temperatures overnight with most of our MN counties warming into the lower 30s as of 2AM CST. Weak ascent from the WAA has produced a line of light snow mixed with freezing drizzle, with the best chances for a dusting or coating coming across western Wisconsin and southwestern Minnesota early this morning.
333 AM MST Thu Jan 27 2022 Current radar imagery shows some areas of light snow tracking from north to south across areas East of the Divide in association with a weak cold front moving in from Montana.
Based on the 08Z water vapor imagery, a broad cyclonic pattern persists over the central and eastern portions of North America with an upper ridge along the west coast. Meanwhile an upper through axis was rotating around the upper low over Manitoba. Surface obs showed a low pressure system north of Lake Superior with troughing extending back into the central plains. The cold front with this system was still north of MN and ND. As a result highs are still expected to make it into the lower 40s for most areas.
505 AM CST Thu Jan 27 2022 At 3 AM, southwest winds ahead of an approaching warm front have allowed temperatures to warm across the area. An arctic cold front will move through the area during the late morning and early afternoon. As high pressure builds into the region tonight, skies will gradually clear and wind speeds will diminish.
/NF/ Today and Tonight: We are starting out today with temperatures a good 10 degrees cooler than normal. A sharp mid/upper trough will bring a reinforcing cold front across the area during the daytime tomorrow.
Surface analysis depicts a weak low pressure trough extending from the northern Bahamas through the Keys to near the northwest Cuban coast. Aloft, a broad longwave trough remains in place over the CONUS east of the Rockies, with zonal flow across the Gulf of Mexico and South Florida along the southern edge of this trough. Heading into the weekend, guidance remains consistent in carving out a deep longwave trough over the eastern CONUS, with a powerful cold front blasting through the Keys late Friday night.
Light winds out of the east and high pressure will help clear skies by the afternoon. A persistent ridging pattern with an omega blocking scheme slowly moves east of the PacificNW. Ensemble clusters show a trough upstream. There is uncertainty pertaining to the amplitude of the trough.
305 AM CST Thu Jan 27 2022 Primary issue in the near term is ongoing patchy freezing drizzle from the Hwy 14 corridor into SW MN. Forecast soundings suggest temperatures in the existing stratus is very near but perhaps just warmer than the ice growth zone thus resulting in the patchy drizzle/freezing drizzle. Upper level ridging further establishes itself across the western CONUS for Friday into the weekend placing our area in the all-to- familiar northwest flow regime.
A high amplitude ridge of high pressure centered on the West Coast this morning will expand and move east today, keeping the Northern Rockies on the east side of the ridge. This pattern of high pressure will keep valley inversions in place across the Northern Rockies today. Cold air and available moisture from a snow-covered ground combined with mostly clear skies will mean freezing fog and low stratus cloud formation for many valley locations.
526 AM CST Thu Jan 27 2022 (Today and tonight) In the near term, the freezing fog advisory continues until 9 AM over southwestern Oklahoma where several inches of snow fell yesterday.
Most of the snow shower activity this morning is along and behind the backdoor cold front. High pressure will build south over the forecast area today behind an exiting low pressure system that brought our strong winds yesterday. A backdoor cold front currently moving into the far northeast CWA will move southwest through much of the forecast area this morning, and then linger over southwest North Dakota this afternoon as a stationary front. With strong pressure rises associated with the backdoor cold front will utilize a blend of our higher guidance for winds through this morning.
and Friday Scattered snow showers will precede a cold front that will move across the area in the afternoon. Friday will be partly sunny and cold, with highs around ten degrees cooler than average.
418 AM CST Thu Jan 27 2022 Lots of cloud cover streaming across the area early this morning ahead of a cold front that has pushed across our northern counties overnight and as of 4 AM is approaching the I-80 corridor. expect temperatures to continue to modify and warm across the area as heights aloft begin to increase as a ridge of high pressure transitions across the intermountain west.
600 AM EST Thu Jan 27 2022 Aviation - Light Snow Developing Today - A cold front will gradually move in from the NW this afternoon and bring light snow showers. Some travel impacts are possible later today particularly well to the NW of KGRR due to the combination of the snow and brisk SW winds ahead of the cold front.
537 AM CST Thu Jan 27 2022 Temperatures where above freezing yesterday causing some snow melt. As we headed throughout the night temperatures dropped below freezing into the single digits to teens.
Tonight and Friday Temperatures will continue to plummet tonight behind an arctic cold front pushing east of the area as high pressure builds over the area. That being said, wind chill values are expected to fall to 10 to 20 below zero across much of the area, with the lowest values across central and north-central Wisconsin through Friday morning.
THe clouds will play n important role in keeping temperatures down this afternoon, though today will still be warmer than the previous couple of days.
Winds mainly out of the N/NW this afternoon before shifting to N behind a cold front set to move through this evening. This trough will track down across UT today into AZ/NM by evening before pushing through NM overnight. As of 08z have sub freezing temps for most of the area with a Freezing Fog Advisory in effect this morning for SE NM. Temps should turn much warmer today with highs climbing back into the 50s. However a cold front will blow in during the afternoon and pass through the area overnight. After a chilly Friday morning with lows in the 20s and 30s look for highs Friday to end up several degrees cooler and be in the 40s and 50s.
Otherwise, freezing temperatures will once again return for tonight. However, freezing temperatures will develop after the previously mentioned precipitation is over.
This activity is largely tied to the cold front that passed through during the morning and afternoon hours, with the cold front aloft lagging behind by a county or two. The snow showers will continue to move south, with chances for light snow and/or flurries remaining possible until the cold front aloft passes through by the late afternoon hours. This will allow for southerly return flow at the surface to set up across the region, with northwesterly flow setting up aloft as ridging builds.
1002 AM EST Thu Jan 27 2022 High pressure will continue across the CWA today.
Amplified upper pattern over the conus today with a ridge up the Pacific coast and broad cyclonic flow covering the eastern 2/3 of the country. Forecast is running near the lower end of the guidance envelope which drops Mason City to -15 and a little "warmer" further south with the DSM metro right around 0. This remains a battle through the week as warmer air from the west tries to erode the cold air mass.
A chilly start this morning as temperatures are a bit slow to rise however high temperatures will range from the low 50s across the north to near or at 60s degrees across the south. Besides the increasing clouds, today will be a nice day!/JNE/ Prior discussion below: Today and Tonight: We are starting out today with temperatures a good 10 degrees cooler than normal. A sharp mid/upper trough will bring a reinforcing cold front across the area during the daytime tomorrow.
No precipitation is expected with this system as it slides across tonight into Friday, as the best lift and deep layer moisture will be located well to our west near the PV max at the base of the trough.
High pressure with continued sunny and mild weather today.
Dense fog and freezing fog are being observed in the Umpqua Valley this morning, with some fog in West Grants Pass as well.
212 PM CST Thu Jan 27 2022 Models show a cold front moving through the middle Mississippi and lower Ohio valleys this evening into the early overnight hours, and the upper trof moving over our region on Friday. Lows tonight behind the cold front will drop from around 20 degrees north to the middle 20s southeast.
Enjoy the quiet and warmer day today! SR 12Z TAF DISCUSSION. VFR through the period at all sites as high pressure prevails. Winds will eventually shift sly/swly as high pressure slides east of the Appalachians in the afternoon. CDG Chattanooga Airport, TN 52 34 44 18 36 / 0 10 10 10 10 Knoxville McGhee Tyson Airport, TN 49 32 41 16 32 / 0 10 50 30 10 Oak Ridge, TN 48 32 41 15 33 / 0 10 30 20 10 Tri Cities Airport, TN 46 29 40 14 27 / 0 10 70 60 10.
/issued 1103 AM CST Thu Jan 27 2022/ High pressure is beginning to shift east this morning. Short term models indicate an longwave upper level trough axis and an associated surface cold front will move into the Lower Mississippi Valley late tonight into Friday morning.
Lots of cloud cover streaming across the area early this morning ahead of a cold front that has pushed across our northern counties overnight and as of 4 AM is approaching the I-80 corridor. expect temperatures to continue to modify and warm across the area as heights aloft begin to increase as a ridge of high pressure transitions across the intermountain west.
The colder air associated with the upper trof which will settle into the eastern portion of the conus will only graze eastern Kansas through Friday.
Enjoy the quiet and warmer day today! SR 18Z TAF DISCUSSION. SR Chattanooga Airport, TN 34 44 18 36 23 / 0 20 10 10 0 Knoxville McGhee Tyson Airport, TN 32 41 16 32 19 / 0 50 30 10 0 Oak Ridge, TN 32 41 15 33 19 / 0 50 20 10 0 Tri Cities Airport, TN 29 40 14 27 12 / 0 80 60 10 0.
The snow has largely ended for the NW portion of the forecast as the upper wave pushes eastward, but can't rule out a few flurries under the low cloud deck. Mid afternoon surface observations show that the cold front that is lagging behind the upper wave has made it into northern Illinois. Expecting the cold front to push across the area from NW to SE during the early overnight hours tonight which will allow for morning lows to range from the mid teens to the mid 20s. Most notably, the western ridging will nudge eastward placing us on the periphery of a warmer pattern through the weekend.
A cold front will push south across the area late today and overnight, resulting in gusty northerly winds.
The overall weather pattern of relatively weak winds, dry conditions, and cooler highs over remaining snowpack will continue throughout the rest of the weekend.
Went a little bit cooler than the NBM using the CONSShort with this afternoons MaxT in a swath from west central and into southwest Oklahoma and adjacent western north Texas, generally where the stratus is lingering and a snowpack. Mid-level cloudiness this evening will likely thin out by early morning allowing temperatures to radiate for another night of subfreezing temperatures. Friday afternoon will be our last day of seasonably average temperatures as our upper trough will finish coming through. The flow aloft will be shifting northwest as a warming ridge starts building in from the west, which will be leading into our warming trend for the upcoming weekend.
147 PM CST Thu Jan 27 2022 Arctic high pressure will continue to settle in across the east this evening. The warm air advection will result in a strong thermal gradient from east to west across the cwa on Friday with highs ranging from the upper teens in west central MN to the lower 40s in central SD.
225 PM CST Thu Jan 27 2022 Forecast concerns in the short term will will be exiting light wintry mix/light snow and flurries through early this evening then much colder temperatures and Water vapor satellite imagery and heights show a broad trough encompasses a large part of the central and eastern U.
1023 AM CST Thu Jan 27 2022 Another cold start to the day with freezing temperatures reported across a large swath of southeast Texas and southern Louisiana this morning. Look for increasing clouds overnight ahead of an cold front that will make the coast around the noon hour tmrw.
336 PM EST Thu Jan 27 2022 Discussion/Marine - Snow and freezing drizzle risk into tonight The area of snow which developed over west central parts of the CWA early this afternoon was tracking east and could coat the roads with snow. We did receive a report of freezing drizzle in Kent County earlier. We suspect the risk for freezing will be of a short duration as the cloud depth is deepening with the steadier precipitation moving in. The mid level trough associated with the precipitation we are seeing.
/Issued 1002 AM EST Thu Jan 27 2022/ High pressure will continue across the CWA today.
The inverted trough has moved across Central Alabama bringing a light easterly flow at the surface and has increased dewpoints into the lower 30s as opposed to the lower 20s and teens that are present across northern Mississippi and western Tennessee. This afternoon will be the warmest we'll be for a while, as a cold front will arrive as early as Friday morning. The main forecast story in the short-term will be the arctic air that will plunge southward during the day on Friday behind the cold front. By 7pm many sites in the northern counties will be approaching the freezing mark already with wind chills dropping down into the teens and 20s.
1151 AM CST Thu Jan 27 2022 At 3 AM, southwest winds ahead of an approaching warm front have allowed temperatures to warm across the area. An arctic cold front will move through the area during the late morning and early afternoon. As high pressure builds into the region tonight, skies will gradually clear and wind speeds will diminish.
fairly quiet weather is then expected through the weekend along with temperatures closer to normal, as the deep trough over the central CONUS moves eastwards and generates a powerful nor'easter for the eastern seaboard.
230 PM CST Thu Jan 27 2022 It's been another day with plenty of static and chapped lips with relative humidity values in the lower 20 percent range. We will gain some moisture tonight ahead of the cold front which is currently diving out of the northern plains. Behind the front, the 500 mb trough will move through Friday afternoon through the evening.
High pressure will quickly retreat to the east through the day. An inch or less is forecast to the northwest of a line running roughly from Dubois to the SW corner of PA, and 1-2" (increasing from NW to SE) where light snow will be more prolonged and orographic lift contributes in the ridges. Thus, will expect some pockets of freezing drizzle overnight. A more vigorous trough lifts northeast into the Lower Middle Atlantic. Once again, the bulk of the PVA will be further to the south with most of the production assisted by the ridges of WV and into PA.
1212 PM CST Thu Jan 27 2022 The freezing fog is mixing out and dissipating across our west as visibilities are improving and temperatures are rising. Went ahead and removed the freezing fog out of the weather grids. (Today and tonight) In the near term, the freezing fog advisory continues until 9 AM over southwestern Oklahoma where several inches of snow fell yesterday.
This small difference has allowed for the lowest few hundred feet of the lower atmosphere to moisten up enough for low stratus and fog. Looking at our office webcams, there is some shafts of sunlight starting to pierce through this low deck of clouds and will continue over the next few hours. As more sunlight filters through, we will mix out the lowest levels. With that said, a weak trough remains over the area this morning and will hold across the region through the afternoon while gradually dissipating. Breezes will further freshen by Friday in advance of an approaching strong cold front. This cold front is forecast to blast through the Keys waters late Friday night, followed by very strong northerly winds through much of the weekend.
The clouds will play an important role in keeping temperatures down this afternoon, though today will still be warmer than the previous couple of days.
The chance for flurries returns overnight tonight into early Friday morning as a cold front passes through the region. The cold front that will provide ascent for tomorrow's flurries will stunt low temperatures for tonight. Tomorrow's high temperatures will be impacted as well, with the arrival of a high pressure system into the region. This high will introduce northwest winds to the area, which will work against temperatures.
1103 AM CST Thu Jan 27 2022 High pressure is beginning to shift east this morning. Short term models indicate an longwave upper level trough axis and an associated surface cold front will move into the Lower Mississippi Valley late tonight into Friday morning.
Right now the only two concerns are: light snow, possibly in KDHT are from 03-09z, but that's a very low probability, and the possibility of freezing fog, mainly for the KAMA area. Friday, clearing skies and modest westerly winds should allow the subtle warming trend to continue, with many locations sneaking upward into the lower 50s.
The approach of a cold front will increase the chance of rain to near 100 percent producing the widespread IFR conditions.