Aikyam-Lab/Synoptic-Bench huggingface dataset:
515 AM CST Sun Feb 12 2017 Breezy northwest winds will persist through much of the daytime today, as heights rise rapidly in the high plains. The strong surface pressure gradient persist through midday, then relaxes in the afternoon as the high pressure center moves southeast across the central Plains. Lows will reach the low to mid 20s. Out ahead of the trough winds will be out of the southwest early in the day, then transition to west/northwesterly and pick up in the afternoon with the passage of the boundary. With warming thermal profiles and decent mixing it will be a warmer day with highs in the 40s, approaching 50 along the Missouri River Valley.
A strong cold front continues to push rapidly south through west Texas this morning with 2mb/hr surface pressure rises over southeastern New Mexico in it's wake.
Another high pressure system moves into the area on Monday with dry and mild weather.
837 AM MST Sun Feb 12 2017 Upper ridge will be the dominant feature today, bringing dry conditions and some gusty winds along the western foothills. Weak upper ridging today gives way to flat NW flow tonight into Mon. , then a stronger ridge of high pressure builds over the area later on Mon. Lee troughing developing over the area early this morning, will remain over the region into tonight, bringing breezy conditions to areas from KBIL W.
Weak ridging aloft will continue to produce subsidence and maintain a quite dry air mass. A high pressure ridge over the waters will slowly nudge south as a frontal trough drops down the eastern seaboard. West to northwest winds will increase to around 15 knots tonight ahead of the frontal trough and create poor boating conditions, especially offshore across the northern waters.
This will help to advance a cold front. High pressure will build into the region tonight and remain in place through Monday. Dry and much cooler conditions can be expected through Monday evening. An upper level low pressure system currently off the west coast of Baja California will move east and phase up with northern stream troughing by the middle of the week.
At the surface, a cold front is analyzed from the Tennessee and Middle Mississippi Valleys through the Southern Plains. As low clouds scatter a bit, and the low-level airmass becomes a bit more homogeneous this morning, expect these showers to fizzle out.
/Issued 304 AM CST Sun Feb 12 2017/ A cold front is currently working to the south across eastern Oklahoma and western Arkansas. The cold front is expected to exit the area by mid-morning. The cooler air surging into the area behind the front will ensure that there will not be a repeat of Yesterday's record breaking heat.
Today will be much cooler then yesterday with CAA filtering into the area behind a cold front that moved through later in the day. Despite the cooler temperatures, fire weather will be a concern. Luckily, it appears the strongest winds will be in the morning before weakening in the afternoon when dewpoints start to drop off as high pressure begins to move into the area. High pressure will reside over the area tonight through Monday keeping conditions dry and mild will highs in the upper 40s to lower 50s.
Throughout the day will see temperatures soar into the lower to mid 80s and apparent temps of 84-88 will be likely - yes it will feel like April not February. Cold front with gusty north winds pushing across the Red River at 11z. Monday should be cooler dominated by easterly flow (possibly a few light showers/light rain from weak upglide) that is a little drier as well but the front stalls then starts moving back north as large storm system moves through the state.
431 AM CST Sun Feb 12 2017 (Today and Tonight) Cold front was about 40 miles north of the I-20 corridor at 330 AM. High clouds were spreading into West Texas early this morning, ahead of an upper low over Southern California.
Cold front was located from southeast of Dallas to south of Sonora to the Davis Mountains at 15Z. but should weaken thru the day with gusty Srly sfc winds after sunrise this mrng becmg weaker and ESErly by late aftn as a cold front approaches the region from the north.
1039 AM EST Sun Feb 12 2017 High pressure will move offshore today, then a cold front will sweep through late tonight.
/Issued 328 AM EST Sun Feb 12 2017/ Gloomy start to the short term period will be followed by clear and dry conditions following the passage of a cold front. Will see another warm day today, but influence of the cooler air mass will keep temperatures in the 50s and 60s Monday. The higher elevations of northeast Georgia will likely need a Wind Advisory for after midnight tonight, but will allow the day shift to reevaluate and issue with the afternoon forecast package.
617 AM EST Sun Feb 12 2017 Predominant MVFR ceilings are expected through the morning, with scattered showers arriving ahead of a cold front in the afternoon.
Breezes have relaxed across the Florida Keys as the high sags southward, the meat of its axis across Central Florida. Temperatures are between 65 and 70 degrees with dewpoints in the lower 70s. A vigorous nor'easter will drive a back door cold front southward through the western North Atlantic today through Monday. The ridge axis will quell the advancing front.
Dry, cool northwest flow aloft around a low-amplitude ridge along the coast. Little change in daytime temps through Monday, except a little colder Monday in the Lower Treasure Valley as surface inversion strengthens.
Current surface analysis places frontal boundary stretching through Minnesota into eastern South Dakota, with high pressure over the northern Rockies. Upper level analysis places low off the southern California shore while ridge remains over the Pacific Northwest and clipper system slides through the upper Midwest. Temperatures will be a bit cooler in the wake of the clipper, though will remain above average with mostly sunny skies. Upper level ridge amplifies over the western United States and gradually pushes easterly towards the plains during the middle into the later portions of the work week. Models push the ridge to the east for the weekend which may allow a few disturbances to slide through bringing some precipitation chances.
Cold front associated with the upper trough over the Great Lakes region will work its way southward today, and move through the mid state this morning through the mid afternoon. After the front moves through, northwest flow aloft will start off Monday with ridging trying to move in. However, a trough over the high plains will break down the ridge and make it more zonal over the region.
405 AM CST Sun Feb 12 2017 Current surface analysis places frontal boundary stretching through Minnesota into eastern South Dakota, with high pressure over the northern Rockies. Upper level analysis places low off the southern California shore while ridge remains over the Pacific Northwest and clipper system slides through the upper Midwest. Temperatures will be a bit cooler in the wake of the clipper, though will remain above average with mostly sunny skies. Upper level ridge amplifies over the western United States and gradually pushes easterly towards the plains during the middle into the later portions of the work week. Models push the ridge to the east for the weekend which may allow a few disturbances to slide through bringing some precipitation chances.
527 AM CST Sun Feb 12 2017 The main impactful weather concern will be on a light rain and possibly freezing rain mix early this morning with minimal impact to travel. With temperatures right around the freezing mark along and north of Interstate 90, snow may mix in at times. The cold air advection then drops off a bit by this afternoon so temperatures could actually rise a bit this afternoon into the lower to upper 30s. High pressure moves across the region tonight providing dry and quiet weather. Temperatures will warm nicely on Monday ahead of the trough.
555 AM CST Sun Feb 12 2017 /12Z TAFS/ Strong north winds with gusts over 30 KTS, behind a cold front, will produce crosswinds problems today for general aviation, especially on west to east runways. Stratus and light fog will otherwise clear 15-16Z as the cold front moves through. /issued 431 AM CST Sun Feb 12 2017/ (Today and Tonight) Cold front was about 40 miles north of the I-20 corridor at 330 AM. High clouds were spreading into West Texas early this morning, ahead of an upper low over Southern California.
SHORT TERM (Today through Monday): 500mb low/trough across southern California/northern Baja CA today will move into the southwest United States/northern Mexico Monday. Low to mid level moisture will increase across south Texas today through tonight as a cold front moves into central TX this afternoon and into south TX this evening before the front stalls.
High pressure ridging across the central waters from the Atlantic will keep winds light today and allow a sea breeze to provide an afternoon wind shift.
Today's high temperatures should top out in the low to mid 70s near the coast and mid to upper 70s over more interior locations. A weak cold front will bring some spotty light shower activity into the area late this afternoon into the overnight hours. The cold front approaching from the north is projected to move out over the Gulf waters around midnight.
537 AM CST Sun Feb 12 2017 Cooler air continues to advect across the local area early this morning behind a secondary cold front that is now moving across northern Kansas. In addition to the cooler airmass. Despite the cooler airmass advecting in. Then, with high pressure and mainly clear skies setting up across the region this evening. expect for a cooler night than we have seen of late, and adjusted down lows accordingly - although possibly not quite enough given the near ideal radiational cooling set-up. Through the Mon/Mon night period, with the better lift/precip chances will remain off to the south with the main upper low, that northern disturbance will bring chances of precipitation to southern portions of the CWA.
519 AM CST Sun Feb 12 2017 THe cold front had made its way through the Ozarks early this morning with northerly winds noted across all of the region.
Morning satellite and obs show scattered showers across eastern Alabama in conjunction with a short wave trough. However, some mid-level drying behind the short wave trof could result in partial clearing in the western counties, which will lead to warmer afternoon temps.
/issued 326 AM CDT SUN SEP 18 2016/ Latest analysis shows the remnant inverted trough axis and mid level weakness has moved eastward and is located over Southeast Louisiana into the Gulf South. Radars so far less active than 24 hours ago, with a few nocturnal showers extending from the lower Acadiana coast into the coastal waters, where better moisture is located. With clearing skies, light winds, and more stable conditions behind the trough, patchy fog is forming in areas with residual low level and ground moisture. This system will continue to absorb and push the old inverted trough and associated deep moisture to the east- northeast. Upper level ridging centered over Texas will build eastward behind the short wave and strengthen over the next few days.
The cyclone, centered about 240 miles E/NE of KJAX, has effectively split the Bermuda ridge for the past few days. but in doing so has trapped itself within, one portion of the ridge over the NC Outer Banks, the second centered over the ern GOMex. 00" and the sea breezes concentrate the available moisture, 40-50pct coverage is warranted with the highest coverage in the vicinity of the Florida Turnpike/Kissimmee River/Lake-O.
936 AM EDT SUN SEP 18 2016 A warm front will cross the region today.
The bulk of the moisture is in the lower half of the atmosphere with drier air above this level. Overall, plenty of instability remains with MLCAPE near 1200 J/kg for scattered thunderstorms given a low convective temperature of 82 and the weak upper low over the region. /issued 337 AM CDT SUN SEP 18 2016/ At the surface, TD Julia remains off the Carolina coast, while weak high pressure is centered over the Appalachians.
500 mb short wave trough moving east along the International border today.
1015 AM EDT Sun Sep 18 2016 A cold front will then slowly progress through the region this afternoon and evening, with additional showers and thunderstorms at times.
826 AM EDT SUN SEP 18 2016 A warm front will cross the region today.
Due to the ongoing rain and cloud cover, temperatures will likely stay cooler than originally forecast so have bumped those down. With the low approaching, we have seen an uptick in shower activity and in fact, some better updrafts have developed leading to a few widely isolated storms. This low will continue to track north and east this morning with precipitation continuing to expand in coverage along the front as it moves east. with highs back into the lower 80s with much lower humidity. Prevailing westerlies across the northern tier of states will carry a cold front along which will settle southeast and lose identity and momentum as it runs under the upper ridge.
The 7 am regional surface analysis showed a weak ridge along the Piedmont, and a weak cold front from western TN to the Red River. Vapor imagery and upper air data showed a weak short wave trough over Al and the northern Gulf of Mexico, and a potent short wave trough translating quickly eastward over the Central Plains. The high amount of moisture throughout the column suggests the likelihood for high rain rates.
739 AM EDT SUN SEP 18 2016 A poorly defined slow moving cold front will move east across the area today. High pressure will build in tonight and Monday.
1222 PM EDT Sun Sep 18 2016 Scattered showers and thunderstorms are expected until passage of a weak cold front late tonight. A short wave trough is advancing northeastward into areas generally southeast of Pittsburgh and should be the impetus for shower and thunderstorm development through the morning and early afternoon hours as a slug of mid-level moisture advances northeastward.
Another weak cold front is expected Monday, but will have much less moisture associated with it and mainly clip the north coastal zones with a few showers.
Cold front has moved through a winds are beginning to pick up where the surface inversion mixes out. The cool air behind the cold front will enhance the wind strength.
An unseasonably strong upper ridge will then build over the southern Plains early this week and persist through the work week, resulting in afternoon temperatures nearing record levels in some places.
1230 PM EDT SUN SEP 18 2016 A warm front will cross the region today.
These areas do reside on the east side of a weak trough. while the western/central portions are seeing a westerly downslope fetch behind the trough.
945 AM EDT Sun Sep 18 2016 A weak cold front will move slowly southeast into the region today.
The chance for isolated showers will not completely end until a mid level trough crosses the area and ushers in drier air late tonight. Temperatures are expected to reach the low to mid 80s this afternoon. Cigs will improve from MVFR/IFR after the cold front passes mid morning, and should see VFR cigs by the early afternoon.
1117 AM CDT SUN SEP 18 2016 An upper level trof will swing through the Mid-South this afternoon. An area of showers and thunderstorms that has developed across Arkansas in association with the trof will push into the southern portions of the Mid-South. a slightly drier and cooler airmass will filter into the region. but a few degrees cooler than last week. in the upper 60s to near 70 degrees, so at least it should feel a bit cooler.
636 AM CDT SUN SEP 18 2016 A minor upper level trough was moving east across the central portions of the state early this morning. The upper trough axis will shift eastward across the CWA through 12Z. I suppose as the H5 trough moves east across the CWA there could be a few sprinkles or light showers across the eastern counties as well. Today, the upper trough will move east-southeast into the mid and lower MS river valley. Tonight will be mostly clear with lows in the lower to mid 60s. By Monday morning, a mid level ridge will be located over the southern CONUS while a trough axis is located along the east coast.
936 AM EDT Sun Sep 18 2016 Scattered showers and thunderstorms are expected until passage of a weak cold front late tonight. A short wave trough is advancing northeastward into areas generally southeast of Pittsburgh and should be the impetus for shower and thunderstorm development through the morning and early afternoon hours.
Broken to overcast clouds will help keep temperatures a few degrees cooler than yesterday. Expect breezy conditions mainly across the higher terrain this afternoon with winds diminishing after sunset tonight. Strong west winds aloft will continue to support gusty winds at the higher elevations through today, and then diminish. Afternoon temperatures should remain relatively steady and mild, but morning lows on Monday morning should be much cooler than Sunday morning, due to fewer clouds and lighter winds.
705 AM EDT Sun Sep 18 2016 A weak cold front will move slowly southeast into the region today.
High pressure ridging into the area from the north will weaken today. An approaching cold front will move into the area Monday. The development of a weak upper level low will keep the chance for convection across the area through much of week. The upper level ridge over the area will give way to an approaching upper trough and associated cold front which will enter the area Monday. With increasing cloudiness limiting radiational cooling, expect lows around 70 degrees into the low 70s tonight. An upper level trough and its associated weak cold front will cross the area Monday.
High pressure in the middle layers of the atmosphere will prevail across deep south Texas and the Rio Grande Valley through the next 24 hours. /issued 437 AM CDT SUN SEP 18 2016/ SHORT TERM (Now through Monday): 500mb ridge centered nearly overhead this morning will shift slightly west over the Texas Big Bend region through the forecast period.
635 AM CDT SUN SEP 18 2016 High pressure was over much of the Northland early this morning which has led to mostly clear skies, light winds and areas of fog. Continued warm air advection today will lead to a warmer day with highs in the seventies for most areas but also will cause clouds to increase. The southerly wind will keep temperatures cooler along the North Shore. The chance for showers and storms will then increase over the rest of the Northland this evening as the cold front moves into central to eastern Minnesota by 06Z. Another in a series of long wave trofs will dig into the western U. With the falling heights, low pressure will develop in the lee of the Rockies.
813 AM PDT SUN SEP 18 2016 Dry with above average temperatures, then cooler heading into mid-week with a slight chance of Sierra showers. Strong high pressure continues warm and dry weather today and Monday. Cooler heading into mid-week. Temperatures peak today, with little change on Monday as upper level ridging continues over the region.
725 AM CDT SUN SEP 18 2016 Models show a weak upper level trof moving across the PAH forecast area this afternoon. Highs will be in the lower to middle 80s with lows in the 60 to 65 degree range.
A trough of low pressure will dip into the southeastern states Monday, bringing an increased chance for storms. High pressure will build north of the region toward mid week.
1028 AM EDT SUN SEP 18 2016 The cold front is now moving into the Plateau with winds across Middle TN now out of the N-NW. The main upper level trough will push through the area late this evening into the overnight with synoptic lift from an upper jet stretching northward across the Appalchians. Chattanooga Airport, TN 82 69 89 64 / 70 30 10 10 Knoxville McGhee Tyson Airport, TN 80 66 86 63 / 90 30 10 10 Oak Ridge, TN 79 66 86 62 / 90 20 10 10 Tri Cities Airport, TN 80 64 83 57 / 80 60 10 10.
1139 AM EDT SUN SEP 18 2016 High pressure will retreat from off the New England coast today.
A ridge of high pressure aloft will remain over the region through tonight. It will be 7-10 degrees warmer than yesterday with relative humidities dropping into the teens this aftn.
847 AM EDT SUN SEP 18 2016 A poorly defined slow moving cold front will move east across the area today. High pressure will build in tonight and Monday.
Strong cold front will progress west to east across our counties this morning.
252 AM MST Mon Mar 6 2017 09z surface analysis had low near K2WX with prefrontal trough into southwest WY. Cold front developing from low into northwest WY. Water vapour loop had upper trough from southwest Canada into the southern Rockies.
158 AM EST Mon Mar 6 2017 High pressure over the area this morning will move offshore this afternoon.
305 AM EST Mon Mar 6 2017 High pressure will retreat offshore today, allowing warmer air to return under mostly sunny skies.
Strong cyclogenesis from the nrn Great Plains northward into Canada will occur today and tonight, with the low possibly deepening to 970 mb by 12z Tue along the Manitoba and Ontario border. For tonight, showers and sct tstorms are expected with the passage of the cold front. The cold frontal passage will occur from west to east from late evening into the overnight, with breezy wly winds and subsidence and drying.
345 AM CST Mon Mar 6 2017 WV imagery shows yesterday's upper trough off the west coast has moved inland and tilted negatively, w/models bringing it thru West Texas and Southeast New Mexico this afternoon. Combined with mostly sunny skies, this wind looks to mix out onto the adjacent plains, and well as the higher elevations of the Davis/Apache Mtns further south.
902 PM PST Sun Mar 5 2017 Light rain and snow will be ending this evening as a weak trough exits the region. Continued cool on Monday, then fair, dry, and much warmer for the balance of the week as surface winds turn back offshore.
Temperatures will start the week just a bit cooler than normal then quickly warm through the week to much warmer than normal levels for the first half of March. This cooler air will hold back our high temperatures today to a few degrees shy of normal for the day even with plenty of sunshine.
After that though incoming 00z model suite from short range and global models throwing a left curve and have significantly less snowfall threat in NW fcst area and warmer sfc temps in the srn RRV. As cold air rushes in behind the sfc cold front, an area northwest of a line from Devils Lake to Langdon will likely see any rain transition to a wintry mix and snow starting late Monday afternoon. As winds begin to ramp up in the late afternoon/early evening in the west behind the cold front, any collocated snowfall may limit visibility causing hazardous travel.
355 AM CST Mon Mar 6 2017 (Today and Tonight) An upper trough will move east across the northern and central Plains today, and into the upper Midwest tonight.
Forecast area remains under the influence of an approaching upper level trough. At the surface, low pressure remains centered over southeast Montana and a cold high pressure airmass over Canada continues to push into central and southwest portions of the state. Predominantly VFR expected next 24-hours as an upper-level trough resides over the area. However, disturbances moving through this trough will maintain the potential for scattered snow showers, but confidence in these snow showers impacting any of the terminals is low. At the surface, a fairly impressive cold front continues to push south toward southern Montana.
1223 AM EST Mon Mar 6 2017 High pressure along the coast will continue ridging into the area overnight then move offshore Monday afternoon.
Surface wise, a massive ridge extends from eastern Canada down the spine of the Appalachian chain, and down the Florida peninsula.
Much of tonight will be precip free, but some additional showers may begin to move in by late tonight as the next cold front draws closer. Winds will be gusty at times over some of the higher elevations and foothills tonight as southerly low level jet begins to strengthen.
Gusts into the low 20 knot range will be likely in the afternoon.
A warm front over Lake Erie will continue to move north of the area today.