Aikyam-Lab/Synoptic-Bench huggingface dataset:
The lower clouds are thinning rapidly. High temperatures will reach the lower 30s in southern TN and northwest AL, with middle to upper 30s south and southeast portions of north AL. Winds at 850 mb will shift around to the south as the low level ridge axis moves to the east. The upper ridge axis will move over the area on Saturday as winds aloft shift to the southwest. A trough will move across the Desert Southwest with cyclogenesis occurring across the Southern High Plains. A warm front will start to move inland across the northwestern Gulf Coast. Highs will be a good bit warmer on Saturday climbing into the upper 40s to low 50s. Isentropic lift will occur to the north of the warm front with precipitation approaching from the southeast Saturday night.
high pressure was common over the region with light east to southeast flow. Within the low level flow was a plume of MVFR ceilings drifting west northwest across Southeast Oklahoma into Central Oklahoma. afternoon temperatures should be warmer compared to yesterday with highs in the 20s to low 40s from north to south.
216 PM EST Fri Jan 7 2022 High pressure is currently centered across the southern Ohio Valley. Yesterday's cold front has made it all the way to the central Florida Peninsula. The high center will move east overnight and into Saturday. The High center will move offshore the DELMARVA Saturday night. Will have to monitor for the potential for some patchy freezing drizzle in the far NE portion of the CWA late Saturday night. If that can occur, there is some small potential for patchy freezing drizzle. If dewpoints and/or temps trend higher, the potential for freezing drizzle will decrease.
1120 AM CST Fri Jan 7 2022 Decreased today's temperatures along and north of the Trans Pecos due to continued trends of cooler than anticipated temperatures. (Today through Saturday afternoon) An upper level trough is over the eastern part of the country and another upper trough is moving over the Pacific Northwest. The upper trough over the Pacific Northwest will progress eastward on Saturday extending from the Northern Plains to New Mexico and Arizona. Surface winds across West Texas and Southeast New Mexico will increase out of the west Saturday afternoon as a result of the approaching trough.
845 AM PST Fri Jan 7 2022 A trough of low pressure moving inland along the West Coast will deepen the marine layer through Saturday with cooling and more extensive night and morning coastal low clouds and fog spreading inland.
/EC/ A chilly day is underway as expected with some locations along the Highway 82 corridor having yet to rise above freezing as of late morning. /EC/ Prior discussion below: High pressure building back into the region will keep the weather quiet for the next 24 hrs. Even with ample sunshine today, the highs will range from the upper 30s to the lower 50s. A mid/upper trough will ease across the CONUS, with the southern end lagging back into the Southwest.
Radar shows isolated showers and a few thunderstorms just offshore lying along a coastal trough. Short range models keep the trough offshore, elongating north through tomorrow with warmer air over the Gulf delineating or demarcating a warm front. In the meantime, modest high pressure will continue to build in over the regolith or land portion of the CWA. Cooler surface air will undercut warmer air aloft and will keep an inversion in place, locking in low cloud cover in the short term.
Temperatures have struggled to warm and at midday they range from the mid teens north to the lower 20s south.
With dewpoints rising as much as they will, combined with the cloud cover acting as a blanket, lows tonight will be much warmer, only falling into the 40s in most areas. The warm trend will continue through tomorrow, with highs in the upper 60s to mid 70s, with the warmer temperatures for our western areas where they should see more afternoon sun to help with warming.
A cold front is crossing the area early this morning with clearing skies and a cooler airmass expected today in its wake. Afternoon highs are expected to range from the lower 50s across the far northern areas to the mid 60s across the southeast big bend with northerly breezes. Heading into tonight, a light freeze is possible across the northern areas with lows dipping to near freezing.
Dry conditions will persist as high pressure builds over the region. However, a few showers may brush the Treasure Coast as moisture attempts to pivot along the outer edge of high pressure to our north through Saturday ahead of our next cold front. Afternoon high temperatures will reach the low to upper 70s with high pressure over the area.
233 PM CST Fri Jan 7 2022 Key Points: - Potential for some brief freezing drizzle across east-central Kansas tomorrow morning before temperatures rise above freezing.
250 PM CST Fri Jan 7 2022 Quiet weather today under zonal flow aloft, will gradually bend southwest tonight and tomorrow as a broad upper trough deepens and expands across the western CONUS. Warm air advection and downsloping tomorrow will lift high temperatures into the low 70s for most locations across our area.
The passing trough is expected to result in gusty winds across much of the area and high winds may be possible in the Guadalupe and Delaware Mountains where a High Wind Watch is in effect.
Surface analysis this afternoon places a 1030 mb ridge of arctic high pressure over Kentucky. GOES-16 Satellite indicates a few high clouds moving across the Lower Mississippi Valley with sunny to mostly sunny skies prevailing across the area this afternoon.
Winter Weather Advisory for the higher elevations goes through 6 PM PST, but may be able to end it early if conditions allow.
A south to southeast component to the winds has kept the warmer air just to our west, (low 60s at KSPD) from making it into our far western counties this afternoon. Temperatures will fall back into the teens and 20s overnight but will probably bottom out earlier in the night before recovering some by sunrise on Saturday as a warm front moves into the area from the west. This will push a cold front south across western Kansas during the day.
High pressure entrenched over the southwestern United States will continue to influence our local weather conditions today with mostly clear skies as well as moderating temperatures. A low pressure system will pass to our north late today into Saturday bringing an increase in clouds but no precipitation. Elite January weather will continue as a broad ridge remains parked over the region.
Issued by National Weather Service Tucson AZ 102 PM MST Fri Jan 7 2022 High pressure entrenched over the southwestern United States will continue to influence our local weather conditions with mostly clear skies as well as moderating temperatures. A low pressure system will pass to our north tonight into Saturday bringing an increase in mid and high clouds, but no precipitation. The western edge of a broad ridge of high pressure is responsible for plenty of sunshine with daytime temperatures ever so slightly above climatological normals this afternoon across south-central/ southwest Arizona and southeast California.
Temperatures will cool a bit over the weekend as a weak trough moves by north of the state.
315 PM EST Fri Jan 7 2022 High pressure will bring cool and dry weather to the area tonight and Saturday.
(Tonight into early Saturday morning) Main issue for the overnight period will be the development of areas of light drizzle/freezing drizzle. Surface temperatures will fall off quickly and then rise later tonight as surface winds increase, and there should be a favorable window late tonight into early Saturday morning for some areas of light freezing drizzle primarily for northwest AR and adjacent areas of eastern OK. Given the high uncertainty with overnight temperature trends and beginning of any drizzle/freezing drizzle, will hold off on an advisory at this time. That said, a glaze of ice is a possibility, especially for bridges and overpasses. (Saturday through Friday) Surface temperatures are expected to be above freezing by mid-late morning as south winds become gusty ahead of an approaching cold front.
McD Chattanooga Airport, TN 34 23 51 38 52 / 0 0 0 20 100 Knoxville McGhee Tyson Airport, TN 29 18 46 33 50 / 10 0 0 20 100 Oak Ridge, TN 30 17 46 34 49 / 10 0 0 30 100 Tri Cities Airport, TN 24 13 45 28 47 / 10 0 0 10 100.
156 PM MST Fri Jan 7 2022 Gusty southwest winds today will give way to a cold front sliding southeast across north-central Montana this evening into the overnight, bringing a brief return to chilly conditions.
Even with the dissipating stratocu, 15Z temps have only climbed up to near the freezing mark, although insolation should aid in the warmup as it increases during the day.
1015 AM EST Fri Jan 7 2022 There was some convergence overnight thanks to a retreating ridge axis over the region and a longwave trough moving across the eastern U. A weak anticyclone over the central Gulf of Mexico is driving these boundaries towards our area as it treks east. Then a weak area of high pressure will quickly move across the region, leading to breezes clocking around to the northeast and freshening to light to gentle.
242 PM CST Fri Jan 7 2022 Upper level ridging will build across the into the evening as troughiness develops to the west. Soundings and model output support wind gusts of 40 to 55 mph across parts of east central SD and especially into southwest MN in and around the Buffalo Ridge where gusts should be the highest. This is in response to a fairly strong trough to the north.
1049 AM EST Fri Jan 7 2022 Scattered snow showers favoring northwest Pennsylvania and the higher elevations will taper off through this evening with building high pressure.
Winds will begin near calm under clear skies which will allow radiative cooling to drop temperatures into the low teens to single digits.
941 AM CST Fri Jan 7 2022 Decreased today's temperatures along and north of the Trans Pecos due to continued trends of cooler than anticipated temperatures. (Today through Saturday afternoon) An upper level trough is over the eastern part of the country and another upper trough is moving over the Pacific Northwest. The upper trough over the Pacific Northwest will progress eastward on Saturday extending from the Northern Plains to New Mexico and Arizona. Surface winds across West Texas and Southeast New Mexico will increase out of the west Saturday afternoon as a result of the approaching trough.
Winds start to relax Saturday afternoon as flow aloft weakens with the passage of a cold front. This cold front will be predominately dry for the lower elevations. Accumulation looks to be between 2 and 6 inches with the higher peaks seeing up to 10 inches.
/Issued 1039 AM EST Fri Jan 7 2022/ High pressure and dry conditions expected. Temps will dip back down to freezing or below for most areas across north and central GA tonight. With high pressure building in across the region expecting dry conditions Today and Saturday.
High pressure currently overhead will shift east tonight with southerly surface winds gradually increasing as the pressure gradient tightens. On Saturday night, an Arctic cold front will move southeast through the region.
These winds will keep the low temperatures up in the 20's and 30's. Some low clouds may even develop in the southeast Texas Panhandle as the southerly winds help to increase the low level moisture. Any low level moisture will get quickly swept to the east ahead of a cold front which will move south across the Panhandles during the day on Saturday. There will be quite a spread in high temperatures again on Saturday with readings barely reaching the lower 60's in the north to some lower 70's in the southeast.
A chilly day is underway as expected with some locations along the Highway 82 corridor having yet to rise above freezing as of late morning. /EC/ Prior discussion below: High pressure building back into the region will keep the weather quiet for the next 24 hrs. Even with ample sunshine today, the highs will range from the upper 30s to the lower 50s. A mid/upper trough will ease across the CONUS, with the southern end lagging back into the Southwest.
As a cold front approaches from the west, gusty southerly winds will continue to bring areas of blowing snow and lower visibility (especially under any falling snow). The cold front swings through tonight shifting the winds to out of the northwest.
On Saturday, there will be a cold front that moves through the forecast area. The cold front does not bring much cold air during the day and high temperatures during the afternoon are expected to reach the 40s. The cooler temperatures will be over the snow pack in northern Kansas. Even though temperatures will be cooler behind the front, they will not be as cold as the past couple of systems that have came through.
Gusty southwest winds today will give way to a cold front sliding southeast across north-central Montana this evening into the overnight, bringing a brief return to chilly conditions.
After beefing up winds some over the area, the blowing snow model is now cranking out more areas/definitive blowing snow, especially along and around the ridge line. The sfc front associated with a low up north will slide across the CWA early in the day, but the strongest CAA waits until later in the day, allowing for some mixing and warmer highs vs Friday.
As a low pressure system tracks into the northwest coast and another weak low approaches northern Baja, a fetch of mainly mid and upper level moisture is streaming inland across central California.
759 PM EST Fri Jan 7 2022 Any snow will come to an end early this evening as low pressure moves away from the region.
Attention then turns to the cold frontal passage set to push across the area Saturday morning.
A coastal trough will also develop near sunrise on Saturday. Light winds and clear skies will allow temperatures to fall into the low to mid 30s across interior southeast Georgia. Strong high pressure will build to the north Tonight, with cooler air continuing to filter into the region. Temperatures across inland SE GA are expected to dip into the lower to middle 30s toward dawn, with winds becoming light. For Saturday, the high builds more toward the northeast. Models depict an inverted trough developing along the the coast during the day. The coastal trough will yield an enhanced pressure gradient, and winds elevated at the coast. Convergence due to the trough could result in a few coastal showers as well. Readings will be a little lower along the coast of NE FL due to the onshore flow across the relatively cooler coastal waters.
607 PM CST Fri Jan 7 2022 For the 00Z TAFs, a cold front will move across KGUY and KDHT Saturday afternoon and approach KAMA towards the very end of this forecast cycle. These winds will keep the low temperatures up in the 20's and 30's. Some low clouds may even develop in the southeast Texas Panhandle as the southerly winds help to increase the low level moisture. Any low level moisture will get quickly swept to the east ahead of a cold front which will move south across the Panhandles during the day on Saturday. There will be quite a spread in high temperatures again on Saturday with readings barely reaching the lower 60's in the north to some lower 70's in the southeast.
Freezing drizzle will form late tonight over the southwest. Temperatures warming above freezing will limit impact. Warmer with widespread light rain then expected into Saturday night. becoming warmer midweek before a chance a rain returns late in the week. Gusty southerly winds will increase overnight as high pressure shifts into the Ohio Valley and lee troughing over the Rockies tightens the pressure gradient. Main forecast challenge will be extent of freezing drizzle that forms over southeast Kansas into far southwest Missouri after midnight. Anticipate that temperatures warming above freezing will limit ice accumulations. Lift will increase throughout the day as an upper trough digs into the Plains and advects east increasing rain coverage. Saturday will be much warmer with highs reaching around 50.
Expect MVFR conditions to prevail tonight into early Sat morning as a coastal trough across the lower Texas coast provides abundant moisture across the CWA tonight and low ceilings will persist as a result. Radar shows isolated showers and a few thunderstorms just offshore lying along a coastal trough. Short range models keep the trough offshore, elongating north through tomorrow with warmer air over the Gulf delineating or demarcating a warm front. In the meantime, modest high pressure will continue to build in over the regolith or land portion of the CWA. Cooler surface air will undercut warmer air aloft and will keep an inversion in place, locking in low cloud cover in the short term.
There may be pockets of freezing drizzle as Saturday starts, but this should not last long as rapid warming occurs.
459 PM CST Fri Jan 7 2022 Upper level ridging will build across the into the evening as troughiness develops to the west. Soundings and model output support wind gusts of 40 to 55 mph across parts of east central SD and especially into southwest MN in and around the Buffalo Ridge where gusts should be the highest. This is in response to a fairly strong trough to the north.
529 PM MST Fri Jan 7 2022 Began taking down some of the lower elevation wind warnings. Winds start to relax Saturday afternoon as flow aloft weakens with the passage of a cold front. This cold front will be predominately dry for the lower elevations. Accumulation looks to be between 2 and 6 inches with the higher peaks seeing up to 10 inches.
608 PM EST Fri Jan 7 2022 Any snow will come to an end early this evening as low pressure moves away from the region.
826 PM CST Fri Jan 7 2022 Put out a quick update to put a little bit of freezing rain into the forecast for parts of northwest and north central North Dakota. With warm air pushing in aloft, this is resulting in a few spots of very light freezing rain being noticed. Chances for this will end with the arrival of the cold front later tonight. As a cold front approaches from the west, gusty southerly winds will continue to bring areas of blowing snow and lower visibility (especially under any falling snow). The cold front swings through tonight shifting the winds to out of the northwest.
915 PM EST Fri Jan 7 2022 Arctic high pressure will build across and offshore the Mid-Atlantic states through Saturday night.
KBYX Storm Total shows the highest rainfall total was about three-tenths of an inch near Sugarloaf Key.
Despite this, we actually have managed to develop a reverse cloud line over the lower and middle Keys, although the one over the lower Keys seems to be the dominant line. This line is in the process of developing showers mainly over portion of the upper reaches of the lower Keys. At the same time, a weak high pressure cell will move across the Gulf of Mexico this evening, leading to winds clocking around to the northeast and increasing. Thereafter this high pressure will quickly exit to the east and become reinforced by a larger high descending down from the Great Lakes Region. At the same time a mid to upper level ridge over the area will begin to slide east in advance of a deepening long wave trough over the central U.
301 PM CST Fri Jan 7 2022 High pressure remains in control through tonight. Light freezing rain is expected Saturday afternoon, with ice accumulations up to a tenth of an inch possible north of I-70.
Light freezing rain will likely cause travel hazards late Saturday into Saturday night. This next round will be preceded by a fast return of warm air aloft as warmer air overruns colder air. Concern that ground and pavement temperatures will lag actual air temperatures, creating an environment for light freezing rain.
A cold front is progged through eastern MT late tonight. Lows Saturday night will be cooler (thanks to clear skies and light winds), ranging from teens west to single digits above and below zero in the east.
Fog formation in the valleys tonight as high pressure builds. Dry high pressure this weekend with seasonal temperatures as morning fog gives way to afternoon sunshine.
High pressure returns over the weekend, bringing valley air stagnation concerns. Benign weather will prevail with much calmer winds for both valleys and mountain ridges, along with clearing skies. Periods of cloud cover and an inability to break through the AM temperature inversion could keep us a few degrees cooler than originally anticipated. While the predominant weather pattern will continue to be ridging over the area for the remainder of the period, this may not completely deflect storm systems from splitting and sneaking southward into SoCal. Cannot rule out the possibility of some upslope snow showers and thicker cloud cover during this time, particularly in Mono county which will be closer to the low and stronger easterly flow. Towards the end of the work week, the low residing over the SW will scoot on out of the area.
As of 19Z, high pressure was centered over southern IL. The high along with northerly flow off the snow pack in TN was keeping temperatures quite cold in the lower to middle 20s in southern TN and upper 20s to around 30 in north AL. The high drifts into the central Appalachians tonight. With the high sliding east, southeast to south flow will develop in earnest on Saturday. Temperatures will respond with highs in the lower 50s for most, and upper 40s in parts of southern middle TN and the higher elevations. Through the day, low pressure will develop in the southern Plains. At 850 mb, a 45-60kt LLJ is forecast to develop from the western Gulf through the lower OH valley as an upper troughs swing into the northern Plains and another pushes east across the Continental Divide in the southwest U.
Key Points: - Potential for some brief freezing drizzle across east-central Kansas tomorrow morning before temperatures rise above freezing.
425 PM EST Fri Jan 7 2022 Scattered snow showers favoring northwest Pennsylvania and the higher elevations will taper off through this evening with building high pressure.
Strong high pressure then passing over from west to east will keep skies clear overnight. Winds will initially be light and variable, but will become light easterly or southeasterly overnight across ridges and open terrain as the high begins to slip away to the east. Snow on the ground, good radiating conditions, and light winds will allow for a very cold night, especially in valleys which remain decoupled from the low level flow. The coldest valleys are forecast to drop below zero, while ridges bottom out from 10-15. Sunshine and continued warm air advection will result in a large diurnal rise in temperatures on Saturday, as an extremely steep low level inversion starts to mix and ridging aloft passes east over the region. The upper level ridging departs Saturday night and the next trough heads east, deepening as it approaches.
Onshore flow along the coast will hold min temps in the low to mid 60s while cooler mid 50s will occur over the interior with upper 40s over NW Volusia and north Lake. On Sat, strong high pressure will move east and reach the mid Atlc coast. Winds veer more easterly Sat around strong high pressure pushing to the mid Atlc coast.
East winds in the 10 to 12 knot range with some gusts up to 20 knots can be expected after 15Z on Saturday as the gradient tightens in response to strong high pressure building in along the eastern seaboard.
The areas that are holding on and are probably experiencing freezing rain include: I-90 corridor from Alberton to St. A cold front is expected to move across our area this evening and will trigger snow showers, some of which could produce strong gusty winds, possibly between 40 and 60 mph. post-cold front environment, combined with strong westerly winds.
630 PM EST Fri Jan 7 2022 High pressure will bring cool and dry weather to the area tonight and Saturday.