Aikyam-Lab/Synoptic-Bench huggingface dataset:
334 PM CST Sat Dec 31 2016 An upper trough will track east across the Four Corners region and southern Rockies tonight. Brief short wave ridging will take place on New Years Day but then another southern stream upper trough should pass just south of the Panhandles Sunday night.
THIS COMBINED WITH DRAMATICALLY INCREASING LOW LEVEL MOISTURE WILL RESULT IN THE INITIALIZATION OF THE HIGHLY ADVERTISED HEAVY RAIN AND PERHAPS A COUPLE OF ISOLATED THUNDERSTORMS. AFTER CONSIDERING THE FORECAST QPF TOTALS BOTH FOR TODAY AND OVER THE THREE DAY PERIOD (3-4 INCHES EXPECTED TODAY AND 5-6 EXPECTED OVER THREE DAYS) AS WELL AS THE LIKELIHOOD OF A TRAINING EVENT DEVELOP, I OPTED TO HOIST THE FLASH FLOOD WATCH FOR EASTERN PARTS OF THE AREA FROM EASTERN CAMERON PARISH TO ST MARY AND NORTHWARD TO ST LANDRY WHERE THE HIGHEST TOTALS ARE EXPECTED.
358 PM EST Sat Dec 31 2016 A weak cold front and showers will move east tonight. High pressure is forecast to provide mainly dry weather on Sunday.
226 PM EST Sat Dec 31 2016 High pressure will continue to move offshore tonight.
Conditions will deteriorate during the overnight hours as low level isentropic lift increases and the low levels saturate.
1118 AM EST Sat Dec 31 2016 A pressure ridge over the area will move off the coast this afternoon.
237 PM CST Sat Dec 31 2016 A cold front continues to slowly progress southward across western and central OK this afternoon. Expect more widespread fog late Sun thru early Mon east of I35 as southerly flow returns and dewpoints climb back into the 50s ahead of a deeper mid to upper low moving over west TX. A few strong to severe storms could develop initially over portions of western north TX late Mon, and then across extreme S/SE OK thru the early morning hours as mid level lapse rates steepen with the mid to upper trough. As the trough passes overhead mid day Mon and winds veer, cloud cover will diminish and temps will climb well above average Mon afternoon. The next modified arctic cold front will move into OK early Tue AM, and then dive southward during the day into TX.
Today, early this morning a positive tilt upper level trough extended from Lake Superior, southwest across western NE. Overnight lows may occur between midnight and 3 AM in the lower to mid 20s. By Sunday morning, a strong mid-level trough will be located over the northwest US, while another, more southern, trough is seen located near southern Arizona. Ahead of this lifting southern trough, a weak wave passes over the area Sunday which could bring a chance for light sprinkles in the afternoon.
234 PM EST Sat Dec 31 2016 A weak cold front will return rain and snow chances to the forecast through the evening. Building high pressure should result in dry weather Sunday. Critical thicknesses, model soundings, and morning upper air data indicate mainly snow should fall N of I 80 and in the higher terrain SE of PIT, with rain changing to a mix of rain and snow S of I 80. Areas N of I 80 and the higher terrain SE of PIT could see around an inch of snow. Dry weather is expected Sunday under building high pressure. A brief period of freezing rain is possible in the usually colder locations N of I 80 but confidence of occurrence remains too low for an HWO inclusion at this time.
/Issued 343 AM CST Sat Dec 31 2016/ A weak frontal boundary will sag south across the area today before stalling and then lifting back north as a warm front late tonight and Sunday.
A cold front continues to advance south/southeastward across the body of Oklahoma this morning. Moderate southwest winds will shift to northerly as cold front passes over terminals this morning. /issued 419 AM CST Sat Dec 31 2016/ Cold front entering far northwest Oklahoma at this typing and it is expected to make steady south-southeast progress through the day, clearing southeast parts of Oklahoma late this afternoon.
250 PM EST Sat Dec 31 2016 A weak cold front crosses tonight.
1211 PM EST Sat Dec 31 2016 High pressure will build into the region today. Weak low pressure will approach from the west this afternoon and cross the region tonight. The low will move east Sunday.
A mid/upper level ridge building from the northeast Pacific into Alaska will result in pattern amplification across the CONUS with a broad trough forming over the western CONUS and expanding eastward through the week.
Some wrap around moisture will continue to stream into Northern Navajo and Apache counties as the low center slowly moves across the four corners region. Expect isolated showers to develop throughout the day across the higher terrain as some convective mixing will allow residual moisture to produce some shower activity. Expect cold and showery weather to continue over the New Year's holiday weekend with periods of winter driving conditions across the high country. The low will slowly move across the state through the day bringing periods of showers. Any travelers in the high country on Sunday should anticipate winter driving conditions and be prepared for accumulating snow.
SKies should be mostly cloudy tonight as warm advection begins ahead of a weak upper trough approaching Upper Michigan and lake Superior. The New Year should begin on a partly sunny and mild note over most of the area as weak high pressure drifts across the region.
A cold front will swing through the area late today/early tonight. However, a moderately strong southerly low level jet will bring windy conditions to the higher elevations and foothills along the east TN mountains, so will issue a wind advisory for these areas.
Forecast soundings continue to depict intense shear with LLJ increasing to 60 knots but weak to non-existent instability ahead of the line due to a persistent high pressure ridge off to our east.
The deep surface cyclone northwest of Lake Superior will move toward Hudson Bay Canada. This, combined with ridging to the southwest, will keep us in a tight gradient for a couple of days.
Warmer with Chance of Rain Late Tonight & Wed. Warmer with highs near 80 well inland toward the I-75 corridor with a dominant east coast sea breeze keeping the east coast cooler with highs in the low/mid 70s. Atlantic coast and a trough axis begins to advance east of the MS River basin. Johns and Flagler counties coasts near a broad coastal trough axis. Warm air advection pattern as well as increasing cloud cover ahead of a weak approaching cold front will bring mild low temperatures ranging in the upper 50s to lower 60s. Johns river basin where the low level front will coincide with sea breezes under sheared out mid/upper level trough axis.
1117 PM CST Mon Mar 6 2017 Cold front has passed KCDS and will pass KPVW and KLBB within the next two hours. /issued 630 PM CST Mon Mar 6 2017/ Winds will turn northwest then northerly overnight as a cold front slides southward behind the upper trough exiting into the central and northern plains. An upper-trough passing across the central plains has brought a strong middle-level jet streak across the southern plains and Texas Panhandle today. The winds will decrease this evening as the speedmax shifts E-NE, but a cold front will drop south through the area tonight in the wake of the exiting wave.
The high to the west will also allow for a dry and cool day with highs 5 to 10 degrees below normal.
314 AM EST Tue Mar 7 2017 A warm front will cross the region this afternoon.
/issued 858 PM EST Mon Mar 6 2017/ High pressure centered over the mid-Atlantic coast will shift off to the NE through Tuesday as a weakening cold front approaches the state. High pressure returns across the area behind the front for the rest of the week.
For tonight, the cold front will move through. Considerably cooler highs are expected with values peaking in the 60s. The fb grids with chance pops and cooler temperatures looks fine for now. Winds will increase again by mid morning on Tuesday as daytime heating increases mixing in the lower levels.
1139 PM CST Mon Mar 6 2017 The cap was currently being breach across eastern Nebraska which was in closer proximity to the upper PV wave/cooler air aloft. Storms will eventually develop southward into eastern Kansas later this afternoon/evening once the cooler air aloft moves over the unstable low-level airmass.
331 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. Otherwise, an upper trough is progged to advance across the Upper Midwest today, as a surface cold front approaches the region. A crossing upper trough could result in some increase in clouds mainly N of I 80 Wed, but dry weather is expected. A tightening pressure gradient is also expected Wed between high pressure over the TN valley, and low pressure across Canada.
A cold front will continue moving through the area during the first few hours of the forecast period and will be accompanied by a line of showers and thunderstorms. Cold front has entered northeast Oklahoma this evening.
The high wind warning is verifying across the central and east but winds have dropped off southwest. Bufkit sounding show increasing winds later today so will keep the high wind in effect through Tuesday. the center of the low pressure system has lifted northeastward from near Aberdeen around noon to near Valley City/Fargo at mid-afternoon. The inverted trough extending northwestward from the low towards the Turtle Mountains. On the west side of this inverted trough, lots of instability with strong frontogenesis and good lapse rates of 7. The high wind warning remains in effect until 5 pm mst.
308 AM EST Tue Mar 7 2017 High pressure will continue to be in control of the weather through the end of the week, and into the weekend. However, a low pressure system will bring a weak cold front into North and Central Florida by Wednesday afternoon. As the front progresses across the eastern half of the country today, it will begin to weaken the high today, which will mainly effect a change in the wind across South Florida. The front dissolves over Central Florida and another area of high pressure will build in, but will not be able to become entrenched. This is because another system will develop of the mid Atlantic coast, weakening the high.
332 AM CST Tue Mar 7 2017 A much more pleasant day will be in store for the forecast area compared to yesterday as a cold front continues to push south/southwest at this time. Even with wind speeds not dropping off, dry air and clear skies should allow low temperatures Wednesday morning to drop into the mid to upper 30s, with a few locations in the northwestern South Plains possibly dropping to or a few degrees under freezing.
An upper trough that moved across the forecast area today is exiting to the east with a drier and more stable west to northwest flow behind it.
Expect a cold night tonight behind last nights cold front and wind storm. The remainder of the week will feature warmer temperatures and mainly clear skies. A cold night is in store for many areas tonight due to collapsing wind gradients and dry air behind last nights cold front.
An increasingly mild westerly flow aloft will set up across the Great Basin in the wake of the exiting Pacific trough.
However, a new lee-side trough develops this afternoon and winds could get up to around 15 mph in the Oklahoma Panhandle and the northern and western Texas Panhandle.
414 AM EST Tue Mar 7 2017 A cold front will cross the area today. High pressure will build south of the region Wednesday.
Today, the upper level trough, which was the catalyst in forcing the cold front through the area last night, will move through the region. The pressure gradient will tighten again across the region as high pressure strengthens across the southern Plains.
Blustery conditions continue on Wednesday winds should diminish during the course of the day as high pressure ridge noses in. Any warming in the column halts as cold high pressure builds into the FA for the end of the work week. The high should shunt any higher snow chances to the south and west of the FA.
The low levels have decent adiabatic lapse rates above 7/km. Finally across the south have kept the high wind warning in place.
1240 AM EST Tue Mar 7 2017 Cold front passes Tuesday evening.
Dry weather will be the rule tonight through Wednesday night with weak high pressure in control.
We retained the high wind watch for Tuesday. By Tuesday night, the deep low pressure system will be positioned over far northern Ontario and will likely have deepened below 970mb at the surface. That will be the main issue of focus as with the low being so far north of us, we will likely remain dry Tuesday through Wednesday.
935 PM PST Mon Mar 6 2017 The weather will remain active, as a cold upper level trough exits the Inland Northwest tonight. More snow is expected over the region Tuesday and Wednesday as a warm front moves north. Additionally have issued posts on social media to address nuisance slick driving conditions in spots brought about by freezing of melted snow and graupel which fell earlier this evening as surface and pavement temperatures dropped below freezing.
Strong west northwest flow aloft continues with the 700 mb height gradients from Craig to Casper increasing from 68 to 73 meters, and although, as occurred this morning, expect slightly weaker winds across most locations, except for a likely continuation of strong winds at our wind prone locations of Arlington, Elk Mountain, Bordeaux and Vedauwoo, so we have extended the high wind warning for these locations through Wednesday afternoon. Nevertheless, the high wind warning will continue for our wind prone locations, with windy conditions elsewhere. As a minor consolation, at least high temperatures will be somewhat warmer based on thicknesses and projected 700 mb temperatures.
933 PM MST Mon Mar 6 2017 A rapid warmup can be expected over the next couple of days with high temperatures on the lower deserts climbing well into the 80s by Wednesday.
Today Through Tuesday The cold front is progressing SE this morning. strong cold front surges through the state.
139 AM EST Tue Mar 7 2017 High pressure off the coast will move farther out to sea on Tuesday. A cold front will move through the area early Wednesday with scattered to numerous showers just ahead of it. Upper ridge axis over the SE CONUS this morning will shift to our east late today as upper trough moves east from the central CONUS into the Midwest. Upper level ridge off the coast early Tuesday as upper trough over the northern Plains moves to the Great Lakes region. Cold front in the Carolina mountains around midnight. Temperatures only slight cooler through the day though, with daytime highs still climbing into the 70s with zonal flow aloft and downslope flow. Light northwest winds will keep low-levels mixed, but cold advection will bring temperatures back down into the lower to middle 40s.
A strong cold front will push all rain out of the area after daybreak with mostly sunny skies and breezy conditions expected on Tuesday. Rapidly deepening mid latitude cyclone north to near the Manitoba/Ontario border will force a trailing cold front through the local area by later tonight/early Tuesday morning.
SHORT TERM (Today through Wednesday): Cold front continues to press southward across central Texas this morning, ahead of a passing H5 trough to the north. The trough is already lifting to the northeast, so the front is losing most of its upper support. The trough will finally begin to dissipate and slow down as it reaches near the river tonight.
1101 PM CST Mon Mar 6 2017 Strong southerly flow continues to push relatively warm and moist air into the area ahead of a dry line and cold front to our west. Precipitation should clear the area by sunrise tomorrow, with cooler and much drier air building into the area for Tuesday.
A cold front will pass through the area late tonight into early Tuesday, bringing widespread showers and perhaps a few thunderstorms to the area, as well as breezy conditions. In the wake of the front, conditions will turn a bit cooler and drier. The next chances for precipitation will come with a few quick moving low pressure systems late in the week and into the weekend.
340 AM CST Tue Mar 7 2017 In the wake of the exiting showers and thunderstorms, cooler air is moving into the region, but still milder temperatures than seasonal normals expected today. Cooler air dropping the temps down into the 30s overnight tonight with the winds losing their gusts after the column decouples this evening.
Ginormous trough extends across W. NOAM which transitions to an eastern state ridge then another deep low over the Canadian maritimes. A very strong upstream polar jet is digging through the base of the trough this afternoon and the trough is taking on a bit of a negative tilt. At the moment most models and ensembles are favoring the highest peaks of the Gore/Park Range and to a lesser extent the Flat Tops and Sawatch/Mosquitos. The jet and hence the storm track will be lifting north meaning a drier and warmer forecast to end out the week.
255 AM CST Tue Mar 7 2017 High pressure is now building into the region behind the front.
Next system begins pushing precipitation chances back into the northwest by early morning, spreading south and east across north and central Georgia ahead of an approaching cold front. /Issued 319 AM EST Mon Mar 6 2017/ Cold front will continue to push south of the CWFA Tuesday night into early Wednesday. High pressure builds in for the middle part of the week, with dry conditions expected. Not much chance of cooler air behind this front as high temperatures remain around 10 degrees above normal.
1041 PM CST Mon Mar 6 2017 The cold front is currently located in Southern Oklahoma and the Texas Panhandle and it will continue to move south overnight. A cold front is on its way down and expected to arrive across the northern Hill Country around day-break. Should see ceilings begin to lower back into MVFR and then IFR tonight ahead of a southward moving cold front. A cold front will move into northern areas of the CWA early Tuesday morning and clear southern areas early afternoon. Cooler behind the front with gusty north and northeast winds in the afternoon.
A weak cold front will move through the forecast area between 08Z and 12Z causing winds from the south to shift and blow from the north and then northeast. There is a 10 to 20 percent chance for rain or showers to develop briefly at Sonora, Junction and Brady as the cold front passes south through the area. Rain chances are low and hence rain is not currently included in the TAFS but is reflected in the lower TAF ceilings associated with the frontal passage.
348 AM CST Tue Mar 7 2017 Cold front moving through the area will finally push the remaining rain to the southeast by 12Z or slightly thereafter. Went warmer than ensemble guidance. High pressure will build south of the area over Arkansas tonight. Gradient winds will stay relatively strong over the area tonight with the high to our south so radiational cooling will be somewhat limited even though the airmass will be dry. Expect lows to dip to near normal in the low to mid 30s.
Strong southwesterly winds in excess of 30 mph will continue to gust up to 45 mph through the remainder of the afternoon and early evening ahead of a strong cold front. Taking a look at the pattern aloft, water vapor imagery depicts a negatively tilted upper-level trough now entering the Northern Plains. As the parent storm system rapidly matures by the late afternoon, the associated cold front will quickly push through northwestern Missouri just before sunset and will be the focus for a brief period of convection through the early evening hours. The final hazard resides with rapidly decreasing dewpoints and subsequent fire weather danger behind the cold front.
254 AM CST Tue Mar 7 2017 A large upper level low pressure area/trough moving across southern Canada and the north central United States will push a weak and dry cold front through the forecast area today.
226 AM EST Tue Mar 7 2017 A warm front will approach the region overnight and Tuesday and will bring a chance for some light mixed precipitation overnight and early Tuesday, before changing to plain rain during the day on Tuesday. A cold front will move through the North Country Tuesday night and early Wednesday.
SHRAs/TSTMs to develop with the approach of a cold front. Winds at LRD will back out of the NE early with a prefrontal trough but will hold off on activity at LRD until later around 00Z when the boundary approaches closer.
A ridge of high pressure is along the Mid-Atlantic and New England coast this morning while low pressure is over Lake Winnipeg in Southern Manitoba. Aloft, a negatively tilted trough is moving across the plains and into the Great Lakes Region. The cold front will continue south and east today. High pressure will build into the region behind the front tonight. A drier and slightly cooler air mass will spill in and high temperatures on Wednesday will be around climo averages.
1248 AM EST Tue Mar 7 2017 Occasional rain is expected through today with the approach and passage of a cold front. An upper trough is progged to advance across the Upper Midwest today, as a surface cold front approaches the region. A tightening pressure gradient is expected Wednesday between high pressure over the TN valley, and low pressure across Canada.
A strong cold front will push all rain out of the area after daybreak with mostly sunny skies and breezy conditions expected on Tuesday. Cooler and drier weather is expected tonight behind the front.
A strong cold front will enter Middle Tennessee early Tuesday morning and will move through the mid state throughout the day.
235 AM EST Tue Mar 7 2017 Cold front passes this evening.
1235 AM EST Tue Mar 7 2017 High pressure will cross the region tonight. A warm front will cross the region Tuesday. Orgnl Disc: High pressure will cross the area early tonight with a warm front approaching late. The warm front will slowly lift across the region Tuesday. High temperatures Tuesday will range from the lower to mid 30s north, to the upper 30s Bangor and interior Downeast with around 40 along the Downeast coast. Some freezing rain and sleet is possible across the northeast where thicknesses will still be cold enough Tuesday evening to support some patchy freezing precipitation. Some fog is likely as the warmer moist air moves north over the colder land surface.
Dry westerly flow is expected through the coming weekend with rising heights and lower level thicknesses which means significantly warmer temperatures verses what we have had lately.
A cold front will move through late today/early tonight.
Exception is far northeastern fcst area where some models do have enough qpf in wraparound light snow as the low wobbles back south a tad north of winnipeg. Water vapor loop indicate upper level low over the NE panhandle. Upper level trough will move over LS by morning. Upper level system with another upper low over southern SASK by morning. Winds will finally begin to die down on Wednesday as high pressure slowly builds in and provides for a brief break in a potentially active weather pattern. Once the weak ridge moves out Wednesday night, the area will then be under more zonal to northwest flow aloft to end the work week and through the weekend.
1139 PM EST Mon Mar 6 2017 A warm front will approach the region overnight and Tuesday and will bring a chance for some light mixed precipitation overnight and early Tuesday, before changing to plain rain during the day on Tuesday. A cold front will move through the North Country Tuesday night and early Wednesday.
An upper level trough moving across the Northern Plains is forcing a cold front south across Texas that currently extends from Sherman to Abilene to Wink. The front will move into the far northern Hill Country around sunrise to near the Highway 90 corridor late morning to midday and exit south of our area by mid afternoon. A prefrontal trough will minimize moisture convergence along the front while most dynamics remain over the Plains.