Aikyam-Lab/Synoptic-Bench huggingface dataset:
In addition to the strong winds, radar observations show light rain is moving into our northwestern zones, and will continue southeast with time, eventually transitioning to rain/snow mix or all snow as cold advection brings temperatures below freezing. Afternoon highs will be noticeably cooler than yesterday, ranging from the lower 40s near Hays to the upper 40s/near 50 along the KS/OK border. Overnight lows will drop well below freezing, ranging from the upper teens in our northwest zones to the mid 20s in the southeast, as light winds and mostly clear skies optimize radiational cooling.
Warm front will move north into TN valley after 00z this evening in response to strong low pressure to our northwest, bringing SHRA and MVFR categories with it. CD Chattanooga Airport, TN 50 37 49 29 53 / 10 80 10 0 0 Knoxville McGhee Tyson Airport, TN 47 35 45 29 48 / 20 90 20 10 0 Oak Ridge, TN 46 33 45 27 48 / 20 90 10 0 0 Tri Cities Airport, TN 48 35 43 25 44 / 10 90 20 10 0 TN.
139 AM EST Thu Feb 4 2021 High pressure through Thursday.
1125 PM EST Wed Feb 3 2021 A ridge of high pressure will build into the region overnight into Thursday and provide a pleasant day for central PA.
234 AM CST Thu Feb 4 2021 A cold front that currently stretches from northeast Kansas to northwest Oklahoma will plow through eastern Oklahoma and western Arkansas this morning.
Starting to see some offshore flow kicking in over the higher terrain. Developing offshore flow will lead to some breezy/gusty conditions in the higher terrain of the North and East Bay. As the core of the mid/upper level trough shifts eastward out of the Great Basin, dry conditions will develop over our region along with weak offshore flow. North to northeast winds will become breezy and locally gusty in the higher peaks of greater San Francisco Bay Area. This trend will continue through late week as high pressure builds over the eastern Pacific, allowing for the air mass aloft to warm.
251 AM CST Thu Feb 4 2021 Upper trough working through the High Plains early this morning with areas of scattered light precipitation in the local area on decent mid-level warm-air advection. Strong cold front was bisecting Kansas across central portions of the state at 08Z with Warning-level gusts in southwest Kansas. Deepest moisture and best forcing remain to the north so still expect light amounts here with the lack of deep moisture still giving some potential for patchy freezing rain as temps fall with snow amounts still looking less than an inch. Conditions calm steadily later today with clearing skies and modest high pressure building in.
This will begin with a cold front racing through the area after 12Z this morning. Wind speeds will decrease through the afternoon as the pressure gradient relaxes and surface ridging moves in. This front will obviously bring much cooler temperatures to the entire region today with temperatures closer to seasonal averages for early February. A possibility of sprinkles is more likely given how dry the lower atmosphere will be tonight.
Dry weather and warmer afternoon temperatures are forecast for the weekend. Expect wind speeds to gradually diminish and shift to the north to northeast Thursday morning as a cold front passes through the area. Strong southwest winds continue across the region with the stronger winds over the higher terrain. The Wind Advisory remains in effect until 6PM today for the Kaibab and Coconino Plateaus west to Mohave County, the Vermilion Cliffs west of Page, along and northeast of the Mogollon Rim, and over the higher terrain of Navajo and Apache Counties. A cold front moving down through the Great Basin will at the Utah/Arizona border about midnight, will push south to I-40 by about 6 AM Thursday and will pass south out of the region by noon.
1118 PM EST Wed Feb 3 2021 A ridge of high pressure extending from the Upper Great Lakes, south to the Tennessee Valley will move east and bring clearing skies overnight and diminishing winds into Thursday.
High pressure will move off to the east today resulting in a shift of the prevailing flow to become more out of the southwest.
1044 PM CST Wed Feb 3 2021 Key messages: - A cold front will move through the area tomorrow morning, dropping temperatures and bringing a brief period of wintry weather.
Focus then shifts to a system tonight that will bring a mix of rain and snow changing to all snow with as a cold front sweeps east tonight.
300 AM EST Thu Feb 4 2021 Dry weather is expected today under high pressure.
1142 PM EST Wed Feb 3 2021 Dry weather will continue through Thursday afternoon under high pressure.
An upper ridge stretching north from the Southeast shifts off the East Coast, with upper flow becoming zonal Thursday over the Southeast.
1010 PM EST Wed Feb 3 2021 Cool, high pressure will advect into the region, bringing dry weather through Thursday.
1224 AM EST Thu Feb 4 2021 With high pressure in control, VFR prevails with light winds.
Strong winds continue this morning ahead of the next cold front which will pass through all terminals by early afternoon. /Issued 234 AM CST Thu Feb 4 2021/ A cold front that currently stretches from northeast Kansas to northwest Oklahoma will plow through eastern Oklahoma and western Arkansas this morning.
404 AM CST Thu Feb 4 2021 High pressure centered over Florida this morning with strengthening low pressure over Kansas. This low has a cold front trailing southwest to near El Paso. Aloft, a longwave trough from central Canada to the Four Corners region. At 3 AM CST, temperatures ranged from the lower 30s in the Pascagoula area to the upper 40s along the lower Louisiana coast and on the south shore of Lake Pontchartrain.
Upper ridge axis will move across our forecast area (FA) today. Ahead of the front, expect an increasing SW low level flow, resulting in warmer min temps than previous night. A broad upper trough will crossing the Great Lakes Region and the New England states will push a cold front through the area Friday. Isentropic lift and synoptic lift associated with upper jet streak near 160kt in the Carolina Mountains maximizes through early afternoon as the surface cold front moves through. Kept overnight lows ranging from the lower 30s northwest to the upper 30 southeast.
A rex block pattern, an upper low sitting north of a closed low, is sitting offshore this morning with a thermal trough along the coast. The upper high over low pattern begins to rotate clockwise into Friday morning with a system sliding down the backside of the broad upper ridge pattern into the Pacific Northwest, bringing very light showers to the northern fringes of the forecast area, mostly in northern Douglas and extreme northern Coos county Friday.
333 AM CST Thu Feb 4 2021 A cold frontal boundary swept across the Central Plains during the predawn hours bringing an abrupt wind shift to the north/northwest and was accompanied by wind gusts of 35 to 45 mph. A frontogenetic band of precip developed with the system/progressing upper trough. As expected, the wintry precip band is fast moving and will end quickly from west to east by daybreak or shortly thereafter behind the departing mid level trough axis.
Isolated to scattered snow showers will continue to impact portions of the Northern Rockies this morning, especially in the higher terrain. The higher terrain, especially across north central Idaho into west central Montana, could receive up to a foot of new snow by Friday morning.
With that said today looks to be another warm and pleasant day as the high temps will range in the 70s across the area and 80s for the Rio Grande. An Upper level trough over the Rockies will move into the Midwest today ushering in a cold front. Therefore, the Permian Basin will see the entry of a cold front this afternoon bringing gusty winds and advecting cooler air into the area, halting high temps for the northern Permian Basin to the 60s. The associated cooler air and radiational cooling will promote at or near freezing temps for the northern portions of SE NM and northern Permian Basin tonight.
553 AM CST Thu Feb 4 2021 A band of moderate to heavy snow along the cold front continues to advance eastward early this morning into eastern and south central Minnesota. The highest accumulations will take place in Wisconsin where the snow will persist the longest, but I'm still confident we'll remain just below Winter Storm Warning criteria. Not too excited about only a couple inches of snow contributing to a ground blizzard, especially with the snow falling as temperatures hover near freezing early this morning.
354 AM CST Thu Feb 4 2021 Today and Tonight: Increased southerly flow and moisture transport across the region today, will result in warmer conditions and increased cloud cover across the forecast area. Winds will be gusty from the south and southwest today, as the pressure gradient tightens ahead of an approaching cold front. By day break early Friday, lows will range from the lower 30s to the lower 40s, with winds still breezy, but not as gusty, from the north.
Looking at web cams, the greater snow accumulations have fallen along and north of Hwy 6 and where the enhanced snow bands are occurring across far southern Neb and into north central KS, temperatures are around or just above the freezing mark. A cold frontal boundary swept across the Central Plains during the predawn hours bringing an abrupt wind shift to the north/northwest and was accompanied by wind gusts of 35 to 45 mph. A frontogenetic band of precip developed with the system/progressing upper trough. As expected, the wintry precip band is fast moving and will end quickly from west to east by daybreak or shortly thereafter behind the departing mid level trough axis.
A cold front is currently racing southward across southern Kansas into northwest OK and will cross much of the area by mid morning. Highs will reach the upper 40s and low 50s, but winds will make it feel much cooler.
Lingering clouds around the high terrain with some very light snow across the northern mts will also dissipate this morning. The spring preview of the last couple days will come to an end today as cooler air invades the state and snow showers over northeast areas gradually diminish.
Clouds will continue to increase today as isentropic ascent aloft associated with a warm front takes hold. The ascent will be mainly in the mid levels, as the low levels will be dominated by southeast downsloping flow. We could see slightly better potential for a rain/snow mix at elevations above 3000 feet in southeast Kentucky, but again, temperatures look to stay just above freezing until precipitation departs. A few low level clouds may linger into early Friday, but west to southwest flow is not too favorable for holding in the low clouds, and feel pretty good about the low clouds eroding by midday with plenty of sunshine Friday afternoon helping to return temperatures to the lower to middle 30s.
A cold front extended from the low into west Texas, with a warm front over the Arkansas River Valley. These will act to inhibit widespread destabilization ahead of the approaching cold front, which will move across Arkansas later this morning and into the afternoon hours. At this time, don't think sustained speeds will warrant an advisory, but gusts should have no problem exceeding 30 MPH, especially in the higher terrain of the north and west. High pressure will follow the front in northwest flow aloft.
A passing weather system will bring slightly cooler weather with breezy conditions to the area by today.
Northwest flow aloft prevails across the Intermountain Region early this morning, sandwiched between a Rex Block across the eastern Pacific, and an upper trough encompassing the central portion of the CONUS. Have maintained PoPs through the morning although no accumulation is expected across the valleys, and only minor (if any) accumulation across the higher terrain. Warm advection ahead of this wave will develop tonight resulting snow developing across the higher terrain overnight near the Idaho border region, then spread south and into the northern valleys Friday.
Chances of rain will also exist late this afternoon into tonight as a cold front begins moving east through the area. /19/ Today and Tonight: Increased southerly flow and moisture transport across the region today, will result in warmer conditions and increased cloud cover across the forecast area. Winds will be gusty from the south and southwest today, as the pressure gradient tightens ahead of an approaching cold front. By day break early Friday, lows will range from the lower 30s to the lower 40s, with winds still breezy, but not as gusty, from the north.
A cold frontal boundary swept across the Central Plains during the predawn hours bringing an abrupt wind shift to the north/northwest and was accompanied by wind gusts of 35 to 45 mph. A frontogenetic band of precip developed with the system/progressing upper trough. As expected, the wintry precip band is fast moving and will end quickly from west to east by daybreak or shortly thereafter behind the departing mid level trough axis.
A mid level trough will move across the Plains Thursday into the upper Midwest Thursday evening. This trough will send a cold front across Texas, with the cold front reaching the northern counties of the CWA around 03Z Friday, then slowing down and not clearing our CWA until around 15Z Friday. Temperatures tonight are expected to drop to slightly more seasonal levels as the cold front approaches, and sweeps through portions of the CWA before sunrise. With the cold front sweeping across South Texas and mostly cloudy conditions expected, max temperatures will remain cool Friday with much of the CWA struggling to reach 70 degrees.
Minimum temperatures ranged from the low to mid 50s, and possible a little cooler in the upper Keys. The Florida Keys are situated between a trough sitting off the eastern seaboard and a progressive trough digging into the midwest. As a result, weak high pressure remains overhead through the boundary layer, and is slowly progressing eastward.
Upper trough working through the High Plains early this morning with areas of scattered light precipitation in the local area on decent mid-level warm-air advection. Strong cold front was bisecting Kansas across central portions of the state at 08Z with Warning-level gusts in southwest Kansas. Deepest moisture and best forcing remain to the north so still expect light amounts here with the lack of deep moisture still giving some potential for patchy freezing rain as temps fall with snow amounts still looking less than an inch. Conditions calm steadily later today with clearing skies and modest high pressure building in.
Despite the highs only in the mid 20s to low 30s, the gusty winds today will combine to bring high grassland fire danger index values to Corson, Dewey, Stanley, and Jones Counties.
608 AM CST Thu Feb 4 2021 (Today and tonight) Cold front will move through West Central Texas today, moving into Haskell and Throckmorton counties around 8 AM. The Big Country will see highs in the lower 60s in the morning, with temperatures dropping into the upper 50s in the afternoon.
A strong cold front will quickly shift across the area from mid morning into mid afternoon. A mean positive PNA pattern becomes established across the lower 48 beginning Friday, and continuing through the foreseeable future.
Building high pressure over the Northeast Pacific will help to promote dry weather through at least this weekend across Northwest California. Breezy north winds are expected starting late in the morning across the area as the pressure gradient tightens with the strengthening high pressure offshore.
Temperatures will fall into the mid to upper 20s today in the wake of the strong cold front that moved through the area early this morning. Highs on Friday will range from the lower 20s in the northeast part of our area to the mid 30s along the KS border.
A strong dry trough pushed through the region yesterday with strong gusty winds across the Tulare county portion of the Sierra and across the Tehachapi mountains. Upslope flow kept the low clouds in across the north facing slopes in the Kern county. The trough has exited to the east but the upslope clouds remain along the north facing slopes of the Kern county mountains.
Surface cold front has pushed through the region, resulting in breezy northerly winds overnight across portions of the region. Besides winds today, temperatures will be about 7-10 degrees cooler than yesterday's, running close to seasonal normals, with mostly clear skies.
Elsewhere in the mtns winds will increase overnight as well with areas of blowing snow over the higher mtn passes with periods of light snow.
The cold front is making its way through the Texas Panhandle through the early morning hours with gusty north winds behind the front. Cold air behind the front will filter in with morning lows near or slightly above freezing in the northern half of the combined Panhandles. Meanwhile, areas in the southern TX Panhandle where temperatures stayed warmer longer overnight will see lows in the upper 30s to even 40s.
436 AM CST Thu Feb 4 2021 Another cold front is moving through the midwest this morning with temperatures dropping into the 30s in Missouri and into the single digits in northern Dakota. The upper lvl trof and associated winds will push the system into northern Texas around the noon hour and into the lakes region of southeast Texas around sunset this evening. Friday highs are expected only into the low to mid 50s with cloudy skies and rains mostly light continuing.
The cold front which passed through the area last evening will bring colder temperatures today. Lows tonight will be coldest in the northeast in the mid teens, while in the low 20s west and southwest.
424 AM CST Thu Feb 4 2021 Key Points: -Strong cold front is expected to work through the region today.
(Today and tonight) Cold front will move through West Central Texas today, moving into Haskell and Throckmorton counties around 8 AM. The Big Country will see highs in the lower 60s in the morning, with temperatures dropping into the upper 50s in the afternoon.
High pressure will move off to the east today resulting in a shift of the prevailing flow to become more out of the southwest. Early morning freezing conditions for today are expected to end shortly after sunrise and a potential for light showers moving in ahead of an advancing cold front from out of the west, affecting areas in inland southeast Georgia and parts of Florida west of the I-75 corridor in the early AM hours on Friday.
539 AM CST Thu Feb 4 2021 Key Points: -Strong cold front is expected to work through the region today.
Thereafter, clouds will gradually lower to MVFR levels overnight along with scattered showers spreading from west to east in advance of a cold front. This will result in afternoon temperatures warming to near seasonal levels after a chilly start with near to sub-freezing temperatures at many inland locations and areas of frost. High level cloudiness will be increasing through the day as a broad trough and associated cold front advances eastward into the Lower Mississippi Valley. Clouds will continue to increase with lowering heights this evening and overnight along with rain chances as the cold front moves into our far northwestern zones by daybreak.
556 AM CST Thu Feb 4 2021 Expect prevalent MVFR to IFR conditions at times ahead of an approaching cold front. SHRA will increase in coverage through the morning, with the highest chances being at the northern sites. A cold front extended from the low into west Texas, with a warm front over the Arkansas River Valley. These will act to inhibit widespread destabilization ahead of the approaching cold front, which will move across Arkansas later this morning and into the afternoon hours. At this time, don't think sustained speeds will warrant an advisory, but gusts should have no problem exceeding 30 MPH, especially in the higher terrain of the north and west. High pressure will follow the front in northwest flow aloft.
An Arctic cold front will push through Friday night with the coldest temperatures so far for the season along with a chance for snow.
In addition to the strong winds, radar observations show light rain is moving into our northwestern zones, and will continue southeast with time, eventually transitioning to rain/snow mix or all snow as cold advection brings temperatures below freezing. Afternoon highs will be noticeably cooler than yesterday, ranging from the lower 40s near Hays to the upper 40s/near 50 along the KS/OK border. Overnight lows will drop well below freezing, ranging from the upper teens in our northwest zones to the mid 20s in the southeast, as light winds and mostly clear skies optimize radiational cooling. Afternoon highs will be slightly warmer than Thursday, ranging from the upper 40s in our northern zones to the low to mid 50s near the KS/OK border. Overnight Friday will be quiet but cold, as temperatures fall in to the low to mid 20s.
428 AM CST Thu Feb 4 2021 A band of moderate to heavy snow along the cold front continues to advance eastward early this morning into eastern and south central Minnesota. The highest accumulations will take place in Wisconsin where the snow will persist the longest, but I'm still confident we'll remain just below Winter Storm Warning criteria. Not too excited about only a couple inches of snow contributing to a ground blizzard, especially with the snow falling as temperatures hover near freezing early this morning.
/issued 436 AM CST Thu Feb 4 2021/ Another cold front is moving through the midwest this morning with temperatures dropping into the 30s in Missouri and into the single digits in northern Dakota. The upper lvl trof and associated winds will push the system into northern Texas around the noon hour and into the lakes region of southeast Texas around sunset this evening. Friday highs are expected only into the low to mid 50s with cloudy skies and rains mostly light continuing.
519 AM CST Thu Feb 4 2021 Strong winds out of the north will continue to increase over the next several hours at all TAF sites as a cold front moves through the region. This will begin with a cold front racing through the area after 12Z this morning. Wind speeds will decrease through the afternoon as the pressure gradient relaxes and surface ridging moves in. This front will obviously bring much cooler temperatures to the entire region today with temperatures closer to seasonal averages for early February. A possibility of sprinkles is more likely given how dry the lower atmosphere will be tonight.
MVFR conditions are currently ongoing at AMA with a lower deck of clouds across much of the Panhandles behind the recent passing of the cold front. Winds are out of the north behind the cold front with gusty winds of 15 to 25 knots and gusts up to 30 to 35 knots. The cold front is making its way through the Texas Panhandle through the early morning hours with gusty north winds behind the front. Cold air behind the front will filter in with morning lows near or slightly above freezing in the northern half of the combined Panhandles. Meanwhile, areas in the southern TX Panhandle where temperatures stayed warmer longer overnight will see lows in the upper 30s to even 40s.
A west-northwest downslope flow will persist in the lower levels as well, reinforcing a much drier air mass throughout the high plains of western Kansas, and capping any precip chances during the period. A lee side trough developing in eastern Colorado early Friday will return low level southerlies to southwest Kansas by early afternoon, drawing in slightly warmer air back into the area.