Aikyam-Lab/Synoptic-Bench huggingface dataset:
928 AM EST Thu Dec 22 2016 Low pressure will track across the area on Today. High pres is expected to ridge across the area on Friday. Low pressure is currently moving to the north of the state. A low pressure system will approach from the west today. The low center will intensify late today and tonight as it moves eastward through the Gulf of Maine, however the intensification will be too slow to produce significant amounts of snow across the State so only light accumulations are expected. High pressure will build to the southwest late tonight. Ridge axis wl be acrs the area for Friday with sfc bndry to the north. S/wv ridging builds acrs state thru early Sat mrng bfr beginning to break down as upr lvl trof appchs.
1015 AM EST Thu Dec 22 2016 Meso-scale vortex has formed from the inverted trough off the Brevard coast just north of a dissipating stationary front over the Treasure Coast/Lake-O region. This low has allowed sct/nmrs shras to form over the Gulf Stream.
511 AM CST Thu Dec 22 2016 Early morning water vapor imagery showed confluent flow across the upper midwest leading to upper level subsidence and a broad area of high pressure west of the Rockies. This high pressure will lead to dry weather and clear skies today. Quick shot of snow on Friday followed by ice-to-rain event on Christmas with a deep extra-tropical cyclone. The tracks between the GFS and ECMWF are reasonably close (the GFS is a little farther east and cooler locally).
mild pacific high pressure encompassed much of the western US, with low pressure over central/northern Canada moving east. West to southwest winds across western and central ND ranged from mainly 5 to 20 mph, and were mixing the lower atmosphere and keeping temperatures in the teens and 20s. and in the lower 30s north and east of the Missouri River. Tonight a cold front extending from the central/northern Canadian low moves southeast and approaches northwestern ND towards daybreak Friday.
Mid levels will saturate early evening tonight but with the low levels very dry it will take some time for any precip to saturate the low levels enough to allow the precip to reach the surface. This combined with the continued WAA at the surface tonight, temperatures are likely to struggle to reach freezing. A low pressure system will exit the Rockies and enter the Plains with strong PFJ support rapidly intensifying the system.
This front will move into the Florida Straits and exit the region as upper level ridge gradually builds across South Fl. Expect partly sunny conditions to return today with northerly winds at the surface shifting northeast today and continue through Friday with some cooler air airmass advecting into the the region. Christmas Weekend: Ridge travels to the east into the Mid Atlantic returning easterly flow across S Fl this weekend. High pressure will strengthen resulting in increase of easterly winds with low level moisture filtering into the area. WAA will also help return warmer temperatures across S FL.
Cold and dry today under high pressure aloft. Temperatures will hold steady today around 10-15 degrees below normal, warming slightly on Friday as a weak warm front passes through the region. Therefore, have removed sleet and freezing rain from the Snake River Plain for Friday afternoon as we now expect all precipitation to fall as snow.
The fog should dissipate after sunrise this morning, with the approach and passage of a cold front producing scattered patches of rain and backing winds. Otherwise, a weak cold front currently analyzed across central Texas will slowly pass through Deep South Texas and the Rio Grande Valley today, producing scattered patches of light rain.
Widespread LIFR cigs/vsby from low stratus and fog affecting KSRQ, KPGD, KFMY, and KRSW terminals will improve to VFR after 15Z as the low clouds and fog burns off with VFR continuing at all terminals through 12Z on Friday.
An upper level trough will move approach the high plains by this afternoon and then pass off to the east by late tonight. A large swath of rain was located from Arizona into New Mexico, with some wintry precipitation at the higher elevations. During periods when the moist layer becomes more shallow, freezing drizzle would be possible later on in the evening.
Marathon is a few degrees warmer, likely due to occasional peaks of sun from breaks in the clouds. We will likely reach our max temps in the upper 70s in a short window, once a break- out of the clouds is observed, but for much of the day we may remain in the low 70s. Meanwhile, a developing continental high pressure system over the central United States today, will expand as it moves quickly eastward tonight and Friday.
619 AM EST Thu Dec 22 2016 Low pressure will track across the area on Today. High pres is expected to ridge across the area on Friday. Low pressure is currently moving to the north of the state. A low pressure system will approach from the west today. The low center will intensify late today and tonight as it moves eastward through the Gulf of Maine, however the intensification will be too slow to produce significant amounts of snow across the State so only light accumulations are expected. High pressure will build to the southwest late tonight. Ridge axis wl be acrs the area for Friday with sfc bndry to the north. S/wv ridging builds acrs state thru early Sat mrng bfr beginning to break down as upr lvl trof appchs.
/issued 435 AM CST Thu Dec 22 2016/ A cold front over north Mississippi will continue pushing southward into central Mississippi this morning. The slightly cooler and drier airmass behind the front will provide a mostly sunny day with temperatures lower than yesterday.
804 AM EST Thu Dec 22 2016 Warmer temperatures can be expected for the holiday weekend. A cold front will meander east of the area today along with the left exit region of the upper level jet. Once the low level flow does get a bit of a northerly component this afternoon in cold advection, model soundings suggest a rather shallow moist mixed layer in the low levels that really doesn't quite muster the height of the dendritic growth zone. Warm advection under that ridge will drive Friday temperature a few degrees above the seasonal averages.
A front/trough is currently located across the Cumberland Plateau, but it will have little impact on the sensible weather, aside from shifting winds to the northwest and lowering dewpoints a little.
/12z Update/ IFR/MVFR conditions at KSAT/KSSF should continue to improve through 15z as weak cold front moves south across the area then all sites should see VFR conditions through the afternoon and into the evening. Upper air analysis last evening showed a broad trough over the southern part of the country with a low off the coast of the Baja Peninsula. At the surface, a cold front was stretched from Dallas to San Angelo to Pecos. At the start of this period, the cold front will be near our southern border and will move away to the south. Drying will be short lived as the front will come back northward as a warm front. During this period the upper low off the Mexican coast will open and push to east.
948 AM EST Thu Dec 22 2016 A mid-level trough will move through the Great Lakes this morning. An area of high pressure will move across the region tonight into Friday. Highs will range from the mid 30s northwest to the lower 40s southeast.
512 AM EST Thu Dec 22 2016 Warmer temperature can be expected for the holiday weekend. Warm advection under that ridge will drive Friday temperature a few degrees above the seasonal averages.
705 AM EST Thu Dec 22 2016 A dry cold front will approach from the northwest today then push through tonight.
Some patches of freezing fog have been observed in Missoula, Kalispell and likely many other river valleys throughout the Northern Rockies early this morning. The freezing fog will likely grow thicker as sunrise approaches, so plan for some visibility issues and some possibly slick spots on your morning commute. Friday the Northern Rockies will be influenced by a large trough of low pressure extending well into the southwest U.
435 AM CST Thu Dec 22 2016 A cold front over north Mississippi will continue pushing southward into central Mississippi this morning. The slightly cooler and drier airmass behind the front will provide a mostly sunny day with temperatures lower than yesterday.
/issued 403 AM CST Thu Dec 22 2016/ (Today and Tonight) Cold front has cleared all of West Central Texas early this morning, leaving northeast winds and a cooler air mass settling in across the area.
/issued 359 AM CST Thu Dec 22 2016/ A cool area of high pressure will continue to drift southeast, placing Oklahoma/north Texas into a return-flow pattern later today. The western/northern parts of the rain area tonight will reach areas that may be at/below freezing. As a result, there is a possibility of freezing rain, although accumulations should be minimal, if any.
407 AM CST Thu Dec 22 2016 An upper level trough will move approach the high plains by this afternoon and then pass off to the east by late tonight. A large swath of rain was located from Arizona into New Mexico, with some wintry precipitation at the higher elevations. During periods when the moist layer becomes more shallow, freezing drizzle would be possible later on in the evening.
423 AM CST Thu Dec 22 2016 A cold front continues to move southeast across the area this morning. The fog should dissipate after sunrise and the low clouds should gradually exit with the front. However, mid and upper level cloud cover will increase today as an upper trough moves toward the Four Corners Region. The Four Corners trough will continue to move towards the Midwest while a weak cold front moves into the region.
Slightly cooler 850mb temperatures had returned in wake of the Great Lakes trough, with the 0C line from central MT through central NE to northeast IA.
404 AM CST Thu Dec 22 2016 Today and Tonight: As of this morning, a low pressure system spinning over the Baja Peninsula was bringing rain to parts of the Desert Southwest. Drier air behind the cold front and weak ridging aloft will allow for skies to clear somewhat and temperatures to climb back into the upper 50s to low 60s today.
538 AM CST Thu Dec 22 2016 MVFR/IFR ceilings are in the cloud deck across parts of SE TX ahead of a cold front. /ISSUED 350 AM CST Thu Dec 22 2016/ A cold front will work southeastward across the region this morning, with warmer and more humid air and fog possible until the front passes.
1054 AM EST Thu Dec 22 2016 A dry cold front will approach from the northwest today then push through tonight.
615 AM EST Thu Dec 22 2016 A weak and dry cold front will move through the forecast area late this afternoon and evening. High pressure behind the front will build north of the forecast area tonight.
848 AM CST Thu Dec 22 2016 The current surface map has a large high pressure centered over the Central Plains and a ridge into MN and northwestern WI. Much drier air associated with this high has been steadily eroding clouds from west to east. Upper level ridging and warm air advection will already begin in the wake of this system, with H5 heights building throughout the end of the work week.
We fogged in over the Rogue Valley this morning, and with temperatures in the mid 20s, it's the freezing variety. A freezing fog advisory (PDXNPWMFR) is in effect until 9 AM.
413 AM CST Thu Dec 22 2016 (Today thru Sat Night) Temps across the mid state this morning much warmer than previous mornings with no evidence of fog formation. Lows tonight will dip to at or a even a few degrees below freezing as apex of ridging influences move across mid state, but lows will warm into the upper 40s to lower 50s on Fri and Sat nights. 31 (Christmas Day thru Wed) For Christmas Day, a mid and upper level ridge will build over Florida, spreading over the southeast states, with a ridge axis extending up the east coast.
754 AM CST Thu Dec 22 2016 Early morning water vapor imagery showed confluent flow across the upper midwest leading to upper level subsidence and a broad area of high pressure west of the Rockies. This high pressure will lead to dry weather and clear skies today. Quick shot of snow on Friday followed by ice-to-rain event on Christmas with a deep extra-tropical cyclone. The tracks between the GFS and ECMWF are reasonably close (the GFS is a little farther east and cooler locally).
Temperatures today, ahead of the front, will warm into the low 60s across much of the area. Will see temperatures drop to near freezing across north Georgia to the low 40s in central Georgia for Friday morning. 31 A ridge of high pressure along the southern Appalachians is expected to weaken Friday night as the center moves out into the Atlantic. An increase of moisture in the WSW flow aloft ahead of a cold front will increase light rain chances across mainly farther N GA.
The flat upper ridge over the region today will shift southeast into the Gulf of Mexico Friday as the upper low moving into southern California early this morning dampens into a short wave trough that moves east to the southern high plains to northern Mexico by Friday afternoon. The cold front has been a little slower to move through central Texas overnight with latest MSAS analysis showing 2-3 mb 3-hourly pressure rises over the DFW metroplex area extending to the southwest. Southerly flow in the 925-850 mb layer above the shallow cool air will increase tonight to 30-35 knots in response to the deepening low pressure area lee of the Rockies. Coastal trough/warm front will move inland by 12Z Friday. Nose of warmer air with the southerly winds will reach the Coastal Plains during the day Friday.
High pressure at the surface and slightly rising H5 heights will keep the region dry and warmer through tonight. On Friday winds aloft will swing around to the southwest along with increasing deep layer moisture in response to a short wave moving out of the high plains. With temperatures expected to be at or below freezing over our far western counties at the onset of precipitation, could see light freezing drizzle there between 12-15Z (6-9am).
403 AM CST Thu Dec 22 2016 (Today and Tonight) Cold front has cleared all of West Central Texas early this morning, leaving northeast winds and a cooler air mass settling in across the area.
Isentropic upglide and a gradual moistening of the lower atmospheric column will commence late tonight. Temperatures will remain above freezing across much of the area but will lower to near the freezing mark across parts of the eastern Ozarks and higher terrain of south central Missouri. With that said there is a relatively small window for some light freezing rain or drizzle early Friday morning for some areas east of Highway 65. Temperatures will warm above freezing area wide by late morning Friday while light rain increases in coverage.
(Today thru Sat Night) Temps across the mid state this morning much warmer than previous mornings with no evidence of fog formation. Lows tonight will dip to at or a even a few degrees below freezing as apex of ridging influences move across mid state, but lows will warm into the upper 40s to lower 50s on Fri and Sat nights. 31 (Christmas Day thru Wed) For Christmas Day, a mid and upper level ridge will build over Florida, spreading over the southeast states, with a ridge axis extending up the east coast.
Mainly a cloud forecast through Friday as a moisture-starved Clipper passes well to our north, and pushes a weak cold front southward through the Ohio Valley this morning. Therefore will limit the diurnal temp ranges, leaning toward the cooler GFS MOS by day and the milder NAM MOS by night. Temps should trend a few degrees warmer, but the max temp forecast undercuts MOS by several degrees as the recovery will be limited by a thickening and lowering mid-level ceiling.
/NF/ Today and Tonight: As of this morning, a low pressure system spinning over the Baja Peninsula was bringing rain to parts of the Desert Southwest. Drier air behind the cold front and weak ridging aloft will allow for skies to clear somewhat and temperatures to climb back into the upper 50s to low 60s today.
1028 AM EST Thu Dec 22 2016 A dry cold front will move through the area this afternoon. High pressure builds into the region Friday.
/issued 356 AM CST Thu Dec 22 2016/ Today will be much cooler behind a cold front before we see moderating temperatures heading into Christmas weekend. A cutoff upper low over the Pacific has begun to lift north and is spreading mid and high level moisture across the region this morning. Temperatures continue to fall behind a southward moving cold front. The freezing line is still north of our area currently, but may dip down to Tatum by sunrise. Strong gap winds also continue behind the cold front at Guadalupe Pass, but have remained near or below warning criteria. Temperatures will begin to moderate Friday as southerly flow returns and another upper trough develops along the West Coast.
849 AM EST Thu Dec 22 2016 A weak cold front will cross the region this afternoon and shift off the coast early this evening. High pressure returns tonight through Friday.
Strong, warm and dry high pressure aloft will remain across much of the Great Basin through the balance of the week. The axis of the rather strong upper ridge across the western Great Basin will expand across much of the interior west the next couple of days.
The theme the last several months is for surface ridging into the Gulf cutting off moisture return. trough axis moves east in the morning with drier air returning. Upslope moisture will keep a low chance of showers for the higher elevations for northeast Tennessee and southwest Virginia.
These were occurring in response to a short wave riding northeast through the main upper level flow, in advance of the main trough and surface cold front set to arrive later today. As the afternoon sun starts to fall, a larger area of showers will move into the Ohio Valley from the northwest, ahead of the cold front.
250 PM CST Tue Nov 8 2016 Cold front located from NE Texas to SC Texas will continue to move through the area overnight. Drier and slightly cooler conditions expected through the weekend.
Expect drier air eventually will erode the lowest deck first then another layer at MVFR levels, leading to prevailing VFR at all locations. This is expected to lead to a closing off upper low over the Trans Pecos by later tonight, which eventually should end up on the other side of the Rio Grande in northwestern Chihuahua. Today otherwise will be a cooler day with gusty northerly winds as surface ridging presses into the area. RMcQueen Models are in good agreement with retrograding an upper low back to our west over the next few days. The upper atmosphere will remain relatively stuck in this pattern resembling a rex blocking pattern. The blocking will break down this weekend as the upper low lifts out over West Texas.
Winds will shift to the west-southwest overnight as the ridge of high pressure moves south of the region. A few mid to upper 60s are possibly along the lee of the Buffalo Ridge which will have a good southwest wind component.
403 PM EST Tue Nov 8 2016 A cold front will bring showers tonight and into Wednesday.
A cold front will move through central Indiana this evening and Canadian high pressure will build in behind it bringing dry weather and cooler temperatures for the rest of the week.
214 PM CST Tue Nov 8 2016 A cold front moved south of the fa today. This front along with an upper trough pivoting across the region has resulted in patchy drizzle and light rain showers. Models show a portion of the upper trough currently moving across the region becoming a closed low in SW TX. This low will meander around and west of that area for a few days before eventually shifting back towards the Southern Plains and becoming an open wave that affects the area this weekend. In the meantime, models show an upper trough moving across the eastern U.
430 PM EST Tue Nov 8 2016 Cold front passes late tonight with showers lingering into Wednesday.
A diffuse cold front is working southeast across Texas. Wednesday, as a developing cutoff low around remnant vorticity drifts back to the west, some unsettled weather may continue, but the upper low looks to be too far west for any of that to impact Southeast Texas.
Cooler and drier air will push into the area tonight, with the northern plains high pressure settling south across the area. Expect the main ridge axis to be located right across Central KS by tonight, which will lead to good radiational cooling across most of Central Kansas where min temps will flirt with freezing. Expect widespread frost for areas along and north of a Hutchinson to Cottonwood Falls line as min temps fall into the lower 30s. Expect dry and more seasonal type temps for the middle of the week, as the high pressure area settles across the region. Not expecting any precip as this wave retrogrades as most of the low level moisture will remain cut off to the south of the area. Clear skies and light winds are anticipated tonight as high pressure settles over the area.
This will also be the direction the low will move.
/issued 213 AM CST Tue Nov 8 2016/ A cold front currently stretches from Chicago, Illinois to Tulsa, Oklahoma. By this evening, the cold front will begin to push into Northeast Arkansas, the Missouri Bootheel, and Northwest Tennessee.
/issued 1022 AM CST Tue Nov 8 2016/ Upper-level trough across Oklahoma and Texas contributing to extensive cloud-cover across the region. Trough to ease southeast today allowing for the possibility of scattered showers and isolated thunderstorms areawide.
1023 AM CST Tue Nov 8 2016 Cold front located roughly along the I-44 corridor this morning.
1257 PM EST Tue Nov 8 2016 Dry high pressure will will persist over the area today.
Inland mins will reach the U50s-60F once again across the interior, and collapse of onshore flow will allow drainage flow and cooler mins in the L60s to reach coastal areas as well. Low temperatures in the M-U50s north of I-4 and U50s to L60s toward the lower Treasure Coast.
Light winds with highs in the mid 50s to the lower 60s look good. Highs will be a bit cooler than what we've experienced the past few days, but readings in the 50s and low 60s are still above normal for this time of year. Upper level ridging builds back into the Dakotas while 925/850 mb temps soar into the teens Celsius.
120 PM EST Tue Nov 8 2016 A cold front will cross the area late this afternoon into tonight, producing widespread showers.
1245 PM EST Tue Nov 8 2016 Aviation A cold front dropping southeast through the Lower Peninsula today will be some light rain showers to most areas. On Wednesday we should see a decrease in clouds as high pressure builds in.
There is some concern that we may struggle to hit freezing in some of the Freeze Warning locations tomorrow morning as the models have trended slightly warmer, but still think a cold enough night is on the way to continue Freeze Warning. Don't think we'll have much freezing fog concern in the Panhandles, but couldn't completely rule some patchy freezing fog out in the OK Panhandle around daybreak Wednesday.
Upper level trough will combine with a frontal boundary resulting in additional chances of showers and thunderstorms this evening and tonight across South Texas. Overnight lows will be in the lower 60s with mid/upper 60s along the immediate coast. Upper level trough/low will hang back to the on Wednesday. Abundant cloud cover and precip chances will hold temperatures in the lower to middle 70s across much of South Texas. Rain chances persist mainly over the Gulf Waters on Wednesday night as coastal trough develops.
This is most likely to occur across the western zones, where some mid 20s are likely in the lowest Arkansas valley locations.
Only significant morning update was to bump up sky cover a little as high clouds continue to spill over the upper ridge. Southerly winds will begin ushering in warmer air. Highs today will be a few degrees warmer than yesterday with an upper level ridge nosing in. The upper level ridge peaks over North Dakota Wednesday. This will bring slightly cooler temperatures in.
251 PM EST Tue Nov 8 2016 High pressure remains in control of the weather through today. A cold front will move through the area Wednesday.