Aikyam-Lab/Synoptic-Bench huggingface dataset:
/Issued 430 PM CDT WED OCT 12 2016/ Clearing behind the cold front has allowed the Panhandles to warm into the upper 50s and lower 60s, which is 10 to 20 degrees below the average for mid October. Showers will end west to east as ridging builds in and swings upper level flow back to the northwest. High pressure will eventually be pushed east as a longwave trough pushes through the plains.
MVFR cigs may also seep into KSAF area in association with the cold front stretched along the RGV. A back door cold front moving southwest across eastern New Mexico will generate gusty east winds below canyons around the Rio Grande Valley tonight.
Low clouds associated with the low level upslope flow behind last nights cold front have been persistent today. This should eventually take care of the rest of the low clouds. Thursday looks mostly sunny and warmer under generally dry westerly flow. A weak dry cold front pushes into southeast Colorado Friday night.
It appears that wind speeds will be there for sure, just a matter of the lower RH values reaching that far east. Weak cool front moves through the area Friday night, with mainly just a wind shift to the northwest and slightly cooler temps behind it.
137 AM EDT Thu Oct 13 2016 A cold front will move through overnight into early Thursday, bringing showers and cooler weather to the region. High pressure will build in providing dry weather and cooler temperatures. The cold front itself currently stretches from northwest Ohio down through southwest Indiana with largely unorganized shower activity along it. Good radiational cooling setup with lows by Friday morning from the mid 30s ne to the lower 40s sw. Upper level ridge to build across the region Friday. Highs Friday to range from the lower 60s north to the mid 60s south.
132 AM EDT Thu Oct 13 2016 Upper air pattern consists of a 500 mb trough in the northern plains which heads into the upper Great Lakes by this evening and into the lower Great Lakes by Thu morning. Friday, increasing southerly winds on the backside of high pressure sliding into the Eastern Great Lakes and mid level ridging will bring a warming trend with highs into the mid to upper 50s under mostly sunny skies.
Temperatures could be warmer if the cloud cover does not adequately clear, which is a possibility. For Thursday, more zonal flow will develop aloft and the high pressure will shift to the east. Westerly to southwesterly flow will bring warmer air into the region. Thursday night and Friday the be quiet across the area with a ridge to our east and southerly flow across the forecast area. This should produce warmer than usual temperatures, with highs on Friday currently forecast to be 5 to 10 degrees warmer than normals.
A longwave trof over the interior eastern states continues well off to the east while a short wave trof advances across the southwest states and into the southern Plains, with broad ridging over the Gulf weakening somewhat in the process. Lows tonight will range from the lower 50s inland to near 60 at the coast.
A cold front is currently across northwest Tennessee and northeast Arkansas. By this afternoon, the cold front should be south of the forecast area so dry weather is expected to return by then. Temperatures will be cooler behind the cold front with highs today ranging from the mid 60s to the mid 80s.
136 AM EDT Thu Oct 13 2016 A cold front will cross the area on Thursday with skies trending cloudy along with an increasing threat of showers.
913 AM EST Mon Dec 26 2016 Isolated to scattered showers, especially near the coast, will linger into the afternoon due to a trough along the coast.
511 AM CST Mon Dec 26 2016 A line of showers with an embedded clap of thunder or two has pushed generally east of the highway 65 corridor this morning. Although a cold frontal boundary should push through the area, we should remain mild today. As the fairly intense storm currently positioned across the Dakotas moves northeastward, a second cold frontal boundary will push through the area later today/tonight, which will shift our surface winds to northwesterly allowing for a cooler air mass to filter into the region overnight. Tuesday looks cooler than recent days, however, still pretty warm for this time of year as high temperature top out in the upper 40s and lower 50s.
648 AM EST Mon Dec 26 2016 A warm front will bring warmer temperatures and a chance for drizzle this morning. Rain showers will arrive late today and continue tonight as a cold front crosses the region. Tuesday will be cooler with temperatures in the 40s. Warm front continues to advance across the region, with limited moisture. Temperatures are above freezing, and will continue to increase through sunrise, with only patchy drizzle or light rain showers. As front pushes north, strong warm advection ahead of an approaching cold front will push temperatures nearly 20 degrees above average. As the cold front arrives late day and pushes east, showers will become numerous toward eastern Ohio late day and spread east across the region overnight.
530 AM CST Mon Dec 26 2016 08z/2am surface analysis shows 985mb low over southeast South Dakota, with warm front extending southeastward into the southern Great Lakes. Temperatures across central Illinois have been rising steadily over the past several hours and now range from the middle 50s to the lower 60s. A band of showers associated with a trough axis extending southward from the low has pushed into the western KILX CWA along/west of the I-55 corridor. Given MUCAPE values of 200-400J/kg and potent upper dynamics, have included isolated thunder mention across the E/SE as the trough pushes through the area. The main cold front associated with the low lags further west and will not pass through central Illinois until this afternoon/evening. Skies will become mostly clear across the board tonight as high pressure builds into the region.
402 AM CST Mon Dec 26 2016 This morning the upper low that brought the wind to the area yesterday has already moved up to the Northern Plains. This low will remain over the ocean most of the week before weakening and being swept east.
Wrap around moisture from the powerful low pressure system in eastern South Dakota still continues to bring snow into our northern and northeastern counties.
637 AM CST Mon Dec 26 2016 For the 26/12z TAFs, scattered showers are developing ahead of an approaching cold front across most of the area except for North Central Louisiana. /09/ Early this morning our middle and upper level pattern shows a ridge of high pressure from off the Florida and Georgia coast North across the Eastern states and into Eastern Canada, with a closed upper low lifting out of the Upper Midwest into Central Canada.
Extended the High Wind Warning through 3 PM for the counties near the Buffalo Ridge where the best chance will be to experience severe gusts due to the greater elevation. with the timing of a couple of short wave troughs/surface cold fronts the main concern. until the ridge axis moves in.
517 AM EST Mon Dec 26 2016 High pressure will ridge into the forecast area from the north through tonight.
This boundary should drift south as a cold front during the day today, as surface pressure rises occur across our area with high pressure shifting southeast to the Kansas/Oklahoma border. This low cloud field will gradually erode from the northwest today, and should have clearing across the northwestern half of our area by late this afternoon. Temperatures will be cooler today but still above normal, with highs expected to be mainly in the mid to upper 60s. (Tuesday through New Years Day) The stalled front will lift back north as a warm front on Tuesday, with south winds returning. Keeping rain chances on the low side (20 to 30 percent) generally south of a San Angelo to Brownwood line. Skies will be partly to mostly cloudy Tuesday night with lows in the low to mid 50s.
/issued 410 AM CST Mon Dec 26 2016/ SHORT TERM (Today through Tuesday): H5 ridge across the Gulf of Mexico will be shifting westward over south Texas during the next 36 hours. This will slow down the progression of the cold front to the north, keeping Gulf moisture focused across south Texas. The cold front will be at its closest tonight into tomorrow, so moisture focusing will bring a better shot for showers.
1005 AM EST Mon Dec 26 2016 High pressure centered over Maine will track east tonight. A cold front over the midwest will cross the region Tuesday.
Showers will occur ahead of a cold front that will move through the region tonight.
A strong upper level low pressure system was centered over the eastern Dakotas early this morning and continues to bring blizzard conditions to western portions of those states.
With the exception of the coast, overnight temperatures dropped into the lower 20s for the west side valleys and single digits for the east side valleys.
513 AM CST Mon Dec 26 2016 MVFR ceilings will prevail ahead of the previously mentioned cold front. Today Through Tuesday 09z subjective surface analysis indicates a cold front from just east of Harrison, to Fort Smith.
At the surface, the ridge of high pressure currently north of Florida will continue to produce breezy easterly winds today. Lows tonight will bottom out in the low to mid 60s.
Temperatures will be colder today, especially in the lower valleys where highs will only be in the teens.
621 AM EST Mon Dec 26 2016 High pressure will ridge into the forecast area from the north through tonight.
Early morning temperatures were in the low to mid 60s. The upper level high over Florida that extended into TN yesterday will weaken as a trough pushes in from the northwest, along with an approaching surface cold front. Showers will taper off from northwest to southeast on Tuesday as cooler and drier air comes in from the northwest.
Where winds remain gusty, temperatures have remained on the warmer side with 20s to 30s.
/issued 402 AM CST Mon Dec 26 2016/ This morning the upper low that brought the wind to the area yesterday has already moved up to the Northern Plains. This low will remain over the ocean most of the week before weakening and being swept east.
The damaging winds occurred as winds shifted to the southwest behind a cold front/trough. At that time, a closed low at 500 mb was over north central Nebraska. surface pressure gradient and winds will decrease as the low continues to track northeast into Ontario. Temperatures will be cooler, with highs in the upper 20s north and ranging to around 40 south. High pressure builds in for tonight and moves to our south, giving us light westerly winds.
SHORT TERM (Today through Tuesday): H5 ridge across the Gulf of Mexico will be shifting westward over south Texas during the next 36 hours. This will slow down the progression of the cold front to the north, keeping Gulf moisture focused across south Texas. The cold front will be at its closest tonight into tomorrow, so moisture focusing will bring a better shot for showers.
A weak cold front is expected to stall north of the CWA today with the southern end of the bdry slowly drifting across the far western portions of S TX by late afternoon. A weak cold front is progged to stall north of the CWA today except for the far western areas where the frontal bdry is progged to gradually sink farther south into the western CWA by late afternoon/early evening. In addition, a moderately strong upper level jet is progged to nose northeastward across S TX today however, the better chance for TSRA's will be across the NE CWA where cap is weakest and instability is strongest along with theta-e ridging into the NE CWA.
Frigid temperatures will continue today and tonight with highs today only in the low to mid 20s and lows tonight zero to 5 below. Frigid temperatures will continue today and tonight with highs today only in the low to mid 20s and lows tonight zero to 5 below.
521 AM CST Mon Dec 26 2016 The vicious cyclone that has been the "Star Of The Show" for about the past 4 days was centered over the Southeast ND/Western MN border at 2 AM CST and continues to lift northeast. The upper deck wave will push a cold front southeast across KS Wed Night but with moisture lacking only a wind shift would signal the front's arrival/passage. Thu-Fri Night: All will remain quiet as fairly strong high pressure moves south- east across KS. The GFS & ECMWF diverge considerably next Sat Night & Sun with the GFS forming a cut-off low over Southern CA whereas the ECMWF shows the afore-mentioned mid-upper trof deepening considerably as it crosses the lower Mississippi Valley Sun Morning.
A low pressure system is passing southward offshore sending cloudiness back over the southern third of the forecast area. Dry conditions will likely result in freezing to sub-freezing temperatures over inland valleys very late tonight and Tuesday morning. A closed low center is located nearly 200 miles southwest of Big Sur, moving slowly southward, spreading clouds back northward over Monterey and San Benito counties.
412 AM CST Mon Dec 26 2016 Height fields at 500 mb will undergo gains of nearly 100 meters through Tue morning in the wake of the Christmas cyclone now in NW Minnesota, and a trailing trough currently in Colorado. Add to this low dewpoints in the teens and temperatures should easily reach the warmer spectrum of MOS highs - a strategy that has verified well in recent days.
(ISSUED 513 AM CST Mon Dec 26 2016 ) MVFR ceilings will prevail ahead of the previously mentioned cold front. Today Through Tuesday 09z subjective surface analysis indicates a cold front from just east of Harrison, to Fort Smith.
Elevated serly/srly winds are expected again through the afternoon as the area remains in a good gradient between high pressure along the East Coast and low pressure over TX and the cntl conus. Will continue to hold on to the low end chance for showers/drizzle and will even carry a mention of thunder this afternoon across the northwestern zones where the best chance for rain will be found.
08Z water vapor imagery shows a closed low lifting north along the ND/MN state line within a larger upper trough. A cold front, with a modified Pacific airmass behind it, was moving through eastern NEB and central KS. Because of this have lowered the min temp forecast for tonight expecting readings in the lower and middle 20s. Dry, northwest aloft aloft prevails through the first half of the week as weak low pressure at the sfc veers winds to the southwest on Tuesday.
530 AM CST Mon Dec 26 2016 The vicious cyclone that has been the "Star Of The Show" for about the past 4 days was centered over the Southeast ND/Western MN border at 2 AM CST and continues to lift northeast. The upper deck wave will push a cold front southeast across KS Wed Night but with moisture lacking only a wind shift would signal the front's arrival/passage. Thu-Fri Night: All will remain quiet as fairly strong high pressure moves south-east across KS.
Strong low pressure over northwest Minnesota early this morning will push across Ontario over the next 18 hours and drag its trailing cold front through Indiana and Kentucky tonight. Yesterday Bowling Green got into the lower 70s, 2 to 4 degrees warmer than the previous evening's 00Z guidance was suggesting. High pressure will move in behind the front and give us a dry and much cooler day on Tuesday. High temperatures should be 20 to 25 degrees cooler than what we see today.
Latest upper air analysis shows the closed low of the storm system, which affected the Tri-State Area yesterday, is continuing to lift northeast over the Northern Plains. South of the closed low a zonal flow pattern has developed over the Tri-State Area. Today a subtle short wave trough will move through the zonal flow over the Tri-State Area. However dry environment behind the storm system will only allow a few clouds to develop as the short wave trough moves through. Am anticipating cooler highs there due to the snow cover.
952 AM EST Mon Dec 26 2016 Rain showers will arrive later today and continue tonight as a cold front crosses the region. Otherwise, strong warm advection ahead of the approaching cold front will push temperatures nearly 20 degrees above average. As the cold front arrives late day and pushes east, showers will become numerous later in the afternoon and spread east across the region overnight.
354 AM MST Mon Dec 26 2016 KGJX Doppler radar is indicating some light snow around the forecast area this morning as a weak upper level trough passes through central and northern Colorado. Both the 0600Z NAM12 and GFS20 show this weak trough pulling through the area today, but neither model produces much QPF with this feature.
437 AM MST Mon Dec 26 2016 Latest upper air analysis shows the closed low of the storm system, which affected the Tri-State Area yesterday, is continuing to lift northeast over the Northern Plains. South of the closed low a zonal flow pattern has developed over the Tri-State Area. Today a subtle short wave trough will move through the zonal flow over the Tri-State Area. However dry environment behind the storm system will only allow a few clouds to develop as the short wave trough moves through. Am anticipating cooler highs there due to the snow cover.
329 AM PST Mon Dec 26 2016 High pressure aloft over California will bring dry weather with a warming trend through midweek.
Current upper air analysis and satellite imagery depict a potent, deep closed low in the Northern Plains with an associated surface front stretching from Southern Minnesota into Northern Mexico. The front will slowly progress eastward towards the region as the upper low pushes into Southern Canada.
/issued 412 AM CST Mon Dec 26 2016/ Height fields at 500 mb will undergo gains of nearly 100 meters through Tue morning in the wake of the Christmas cyclone now in NW Minnesota, and a trailing trough currently in Colorado. Add to this low dewpoints in the teens and temperatures should easily reach the warmer spectrum of MOS highs - a strategy that has verified well in recent days.
High pressure will remain nearly stationary over the Western Atlantic waters today keeping the pressure gradient tight over South Florida.
A weak cold front is progged to stall north of the CWA today except for the far western areas where the frontal bdry is progged to gradually sink farther south into the western CWA by late afternoon/early evening. In addition, a moderately strong upper level jet is progged to nose northeastward across S TX today however, the better chance for TSRA's will be across the NE CWA where cap is weakest and instability is strongest along with theta-e ridging into the NE CWA.
Considerably Quieter Today but NW winds will still Gust 25-35 mph in the Wake of the Departing Storm with Dry Wx and Temps Aloft: Vertically stacked low pres was over the Ern Dakota's and entering MN and was within the lifting/deamplifying longwave trof over the cntrl USA. Went with the cooler side of the guidance spread which maintain continuity with the prvs fcst. Light return flow develops with the high to the S. These westerly, downslope winds will help temperatures remain warmer.
Current analysis shows intense low pressure system now centered over far southeast ND, moving relatively quickly to the northeast. High pressure to the northwest is centered over far southeast Alberta/northwest Montana. For today, lingering areas of light snow over far northeast WY, the Black Hills, and northwest SD should taper off and end by late morning as the low moves quickly across northern MN. Relatively quiet wx through the rest of the short term period as high pressure moves over and east of the region late today through Tuesday. Return flow on the back side of the high will likely produce some breezy to windy conditions across portions of northeast WY later tonight and Tuesday.
334 AM MST Mon Dec 26 2016 Current analysis shows intense low pressure system now centered over far southeast ND, moving relatively quickly to the northeast. High pressure to the northwest is centered over far southeast Alberta/northwest Montana. For today, lingering areas of light snow over far northeast WY, the Black Hills, and northwest SD should taper off and end by late morning as the low moves quickly across northern MN. Relatively quiet wx through the rest of the short term period as high pressure moves over and east of the region late today through Tuesday. Return flow on the back side of the high will likely produce some breezy to windy conditions across portions of northeast WY later tonight and Tuesday.
Will keep high pops going however with progressive nature of upper low and diminishing deep layered rh additional snow amounts during the day will not be significant.
428 AM CST Mon Dec 26 2016 An upper level ridge centered around Florida extends north to the Great Lakes and west to Mexico.
/Issued 358 AM CST Mon Dec 26 2016/ An upper ridge will build from Mexico northwestward across the southern Rockies and southwestern states today before breaking down on Tuesday.
Warmer today under lots of sunshine with highs close to late December normals. Satellite imagery this morning showed a cut-off upper low off the southern California coast which will continue to drop south over the next 24-36 hours.
Tonight: Forecast Confidence = High Much quieter weather will move into the region tonight as weak high pressure builds in from the west.
/issued 237 AM EST Mon Dec 26 2016/ High pressure will remain nearly stationary over the Western Atlantic waters today keeping the pressure gradient tight over South Florida.
Temperatures today will be a bit cooler (but still well above normal).
636 AM EST Mon Dec 26 2016 Temperatures will continue rising into the 50s this morning ahead of an approaching cold front.
Again, if the front remains farther north/west then south winds and warmer conditions will occur.
Frigid temperatures will continue today and tonight with highs today only in the low to mid 20s and lows tonight zero to 5 below.
SUBSIDENCE WILL AGAIN PREVAIL TODAY OVER THE CWA/MSA AS THE N-S UPPER RIDGE AXIS APPROACHES THE CWA FROM THE WEST.
/ISSUED 448 AM CDT FRI MAY 6 2016/ THE BOWLING BALL UPPER LOW OVER THE WEST COAST WILL SLOWLY PROGRESS EASTWARD TODAY THROUGH TONIGHT AND WILL DE-AMPLIFY THE UPPER RIDGE CURRENTLY OVERHEAD AS IT MOVES CLOSER TO THE FA. MODELS HAVE SHOWN A WEAKNESS FORMING ON THE EASTERN EDGE OF THE LOW AND THE WESTERN EDGE OF THE RIDGE THAT SPARKS VERY SPOTTY CONVECTION ACROSS THE EXTREME SOUTHWESTERN SOUTH PLAINS/NORTHERN PERMIAN BASIN LATER TONIGHT. A SUBSIDENCE INVERSION IN THE LOW LEVELS AS WELL AS LACK OF DECENT SURFACE MOISTURE WILL PROHIBIT ANY SURFACE BASED CONVECTION. WINDS WILL BE ON THE UPWARD TREND THIS AFTERNOON AS A LEE TROF DEVELOPS TO OUR WEST AND NORTHWEST.
213 AM CDT FRI MAY 6 2016 As the deep upper low moves off the Atlantic Seaboard, a large ridge of high pressure will migrate eastward from the Plains as we head into the weekend.
SURFACE RIDGING OVER THE AREA THIS AFTERNOON IS IN THE PROCESS OF SLIDING OFF TO THE SOUTHEAST AND ALLOWING SOUTHWEST FLOW TO DEVELOP OVER THE REGION. BRINGING 850MB TEMPERATURES UP INTO THE HIGH TEENS. A COLD FRONT MOVES ACROSS THE NORTHLAND FRIDAY AND FRIDAY NIGHT RESULTING IN RELATIVELY COOLER TEMPERATURES. WITH AN AREA OF HIGH PRESSURE BUILDING ACROSS THE NORTHERN PLAINS RESULTING IN ANOTHER DRY AND MILD STRETCH THROUGH THE WEEKEND.
On Saturday a cold front will approach from the north.
A COLD FRONT WILL BE MOVING THROUGH TODAY/THIS EVENING BRINGING A CHANCE FOR A FEW SHOWERS/STORMS. AN AREA OF LOW PRESSURE WAS LOCATED OVER NORTHWEST ONTARIO EARLY THIS MORNING WITH A COLD FRONT EXTENDING SOUTHWEST INTO NORTH DAKOTA TO NORTHERN WYOMING. LAKESIDE AREAS IN THE TWIN PORTS AREA WILL START OFF COOLER. WITH THE LOW NORTH OF LAKE SUPERIOR AND GREATEST PRESSURE FALLS MOVING ACROSS ONTARIO. THE WEEKEND WILL BE MOSTLY SUNNY AS HIGH PRESSURE MOVES FROM THE NORTHERN PLAINS THROUGH THE UPPER MIDWEST.
WITH STRONG U/L RIDGING BETWEEN THE TWO THROUGH THE PLAINS. A L/W TROUGH WILL EXTEND FROM THE EAST COAST LOW ACROSS THE FLORIDA PENINSULA TODAY WITH ANOMALOUSLY LOW HEIGHTS OVER THE AREA. THE L/W TROUGH WILL BEGIN TO PIVOT EAST OF THE REGION TONIGHT AND SATURDAY. HIGH PRESSURE WILL BUILD OVER THE LOWER MISSISSIPPI VALLEY TODAY AND WILL GRADUALLY SINK OVER THE GULF OF MEXICO ON SATURDAY.