Aikyam-Lab/Synoptic-Bench huggingface dataset:
A STRONG COLD FRONT SPAWNED ISOLATED THUNDERSTORMS FROM THE BOISE FOOTHILLS EASTWARD WHICH WERE AFFECTING POCATELLO AS OF 9 PM. SOUNDING SHOWS A DOUBLE TROPOPAUSE STRUCTURE /275MB AND 114MB/ SO A STRATOSPHERE AIR INTRUSION ALSO OCCURRED ON THE COLD AIR ADVECTION SIDE OF THE UPPER LOW PROBABLY WITH AN ARTIC JET WHICH EXTENDED FROM MFR TO SLC THIS EVENING. AND WILL GRADUALLY EXPIRE AS MODERATE SNOWS LIFT NE WITH THE UPPER LOW. SCATTERED SHOWERS AND STRONG WINDS WILL CONTINUE AHEAD OF A COLD FRONT THIS EVENING.
A STRONG COLD FRONT MOVES EAST THROUGH THE AREA LATER WEDNESDAY INTO WEDNESDAY EVENING.
357 AM CST TUE DEC 22 2015 AT H5 BROAD TROUGH ACROSS NORTHERN TIER OF LOWER 48 WITH UPPER HIGH OVER THE GULF. AT THE SURFACE WARM FRONT LIFTING OVER NEBRASKA AND TRAILING COLD FRONT FROM BLACK HILLS SOUTHWEST INTO GREAT BASIN. TEMPERATURES INT THE MID 40S TODAY WITH SLIGHTLY COOLER OVER THE SNOW FIELD TO THE WEST IN THE LOWER 40S.
PRESSURE GRADIENTS ASSOCIATED WITH THE LOW COMBINED WITH STRONG WESTERLY WINDS ALOFT WILL CONTINUE TO PRODUCE GUSTY WINDS THROUGH THE EVENING.
A DRY BUT CLOUDY DAY CAN BE EXPECTED TODAY UNDER THE INFLUENCE OF HIGH PRESSURE. A STRENGTHENING AREA OF LOW PRESSURE WILL ORGANIZE OVER THE PLAINS AND PUSH NORTHEASTWARD INTO THE GREAT LAKES TONIGHT INTO WEDNESDAY NIGHT. STRONG LOW PRESSURE WILL DEVELOP OVER THE CENTRAL PLAINS AND PUSH NORTHEAST ACROSS THE GREAT LAKES.
WITH RECORD WARMTH ANTICIPATED ON WEDNESDAY AS HIGHS LIKELY REACH THE LOW TO MID 60S. WATER VAPOR IMAGERY AND RUC ANALYSIS DEPICTING LEAD SHORT WAVE MOVING NE ACROSS SOUTHERN GREAT LAKES REGION WITH TRAILING UPPER TROF MOVING INTO THE PLAINS STATES. PREFRONTAL TROUGH MAY HAVE ALREADY SHIFTED ACROSS THE AREA PRIOR TO THE ARRIVAL OF THE PHASING OF THESE FEATURES WITH NAM SHOWING STG-SVR STORMS CLOSER TO THE OHIO RIVER AND POINTS SOUTH. AREAS OF -RA/DZ (ESPECIALLY AT KFWA) AND IFR-LIFR CIGS WILL BE THE STORY THIS MORNING GIVEN SATURATED LOW LEVELS AND WEAK CONVERGENCE IN THE VICINITY OF A LOW LEVEL TROUGH.
FARTHER SOUTH THE TEMPERATURE PROFILES ARE WARMER EARLY ON THIS MORNING WHEN THE BEST VERTICAL MOTION IS FORECAST. THE WARM AIR LAYER OFF THE SURFACE ASSOCIATED WITH THE LOW LEVEL JET WILL BRING A CHANCE OF MIXED PRECIPITATION TO PARTS OF SOUTHERN NORTH DAKOTA TODAY. WITH THE HIGHER AMOUNTS IN THE TURTLE MOUNTAINS AREA.
AN ADDITIONAL ROUND OF MORE CONVECTIVE-TYPE SHRA ACTIVITY WILL IMPACT THE TERMINALS OVERNIGHT AS A WEAK COLD FRONT SLOWLY APPROACHES FROM THE NW.
AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. BUT THE LOWER TO MID TROPOSPHERE WAS VERY DRY WITH TOTAL COLUMNAR PWAT (PRECIPITABLE WATER) AT ONLY. THE CENTER OF THE AFOREMENTIONED SURFACE RIDGING WILL MIGRATE TO OFFSHORE JUST EAST OF NORTH FLORIDA AND SOUTH GEORGIA. ALLOWING LOCAL WINDS TO VEER MORE TO THE NORTHEAST AND RESULTING IN A SURGE AS THAT COOLER AIR MOVES OVER THE WARM ATLANTIC WATERS EAST AND NORTHEAST OF THE FLORIDA KEYS. WITH LESSER MAGNITUDE WINDS SUPPORTING SCEC CONDITIONS ACROSS THE COOLER GULF WATERS AND FLORIDA BAY.
The milder weekend will continue through Sunday as weak upper level ridging moves across the region. However, speeds aloft are higher and if some of the higher winds could mix down, a headline may be warranted. The aforementioned cold front will move through on Sunday night.
This airmass is very dry and with the clear skies and calm wind, minimum temperatures will drop into the lower to mid 30s inland and upper 30s to around 40 along the coast. One or two hours of freezing temperatures are possible in the normally colder inland locations, especially in the Big Bend similar to Saturday morning.
621 PM EST SAT FEB 27 2016 HIGH PRESSURE WILL GRADUALLY BUILD ACROSS THE SOUTHEAST THROUGH SUNDAY.
THE MOST VIGOROUS OF WHICH WILL BE ACCOMPANIED BY PROGRESSIVE CYCLONES AND COLD FRONTAL PASSAGES.
EXPECT EVEN WARMER TEMPS TOMORROW AS WINDS INCREASE FURTHER, AND WE'LL GET CLOSE TO WIND ADVISORY CRITERIA ACROSS OUR NORTHERN ZONES BY AFTERNOON.
641 PM EST SAT FEB 27 2016 BROAD RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE OHIO VALLEY AND MID ATLANTIC REGION THE REST OF THE WEEKEND WITH WARMING TEMPERATURES AND DRY CONDITIONS THROUGH SUNDAY EVENING.
SURFACE WINDS WILL VEER WEST AND NORTHWEST EARLY SUNDAY THEN A COLD FRONT IS EXPECTED BY MID SUNDAY MORNING WITH GENERIC BREEZY CONDITIONS INTO EARLY TO MID AFTERNOON. 20Z TEMPERATURES WERE IN THE LOWER TO MIDDLE 70S AREA-WIDE. NOT MUCH IN THE WAY OF CHANGES THIS AFTERNOON AS MODELS CONTINUE TO ADVERTISE A PROGRESSIVE SHORT WAVE PATTERN THROUGH AN UNDERLYING STAGNANT WRN CONUS RIDGE AND ERN CONUS TROUGH PATTERN.
MIN TEMPS INLAND WILL BE 10 TO 15 DEGREES WARMER TONIGHT WHEN COMPARED TO LAST NIGHT.
WEST GRADIENT WINDS OVER THE HIGH TERRAIN WILL BE STRONGEST THIS EVENING IN THE VICINITY OF THE FRONT THEN DIMINISH IN THE COOL NW FLOW BEHIND.
THIS WILL ALLOW THE GULF STATES RIDGE TO BEGIN TO WEAKEN AND BECOME ELONGATED ON SUNDAY. LOOK FOR ONE MORE CLEAR COOL NIGHT UNDER THE RIDGE. TEMPERATURES ARE NOT EXPECTED TO GO DOWN AS LOW AS LAST NIGHT WITH OUR COLD AIR INTRUSION CUT OFF AND THE WARMER TEMPERATURES WE HAVE HAD DURING THE DAY TODAY. THE AIRMASS WILL CONTINUE TO MODERATE FURTHER ON SUNDAY AS OUR RIDGE WEAKENS AND LOW LEVEL SOUTHWEST FLOW RETURNS ON THE BACKSIDE WITH HIGH TEMPERATURES EXPECTED TO ONCE AGAIN BE A FEW DEGREES WARMER THAN TODAY.
A COLD FRONT WILL MOVE ACROSS THE REGION LATE TONIGHT WITH NW TO N WINDS BEHIND THIS BOUNDARY. COLD FRONT TONIGHT RESULTS IN NORTH WINDS AND COOLER CONDITIONS ON SUNDAY.
1006 PM EST SAT FEB 27 2016 BROAD RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE OHIO VALLEY AND MID ATLANTIC REGION THE REST OF THE WEEKEND WITH WARMING TEMPERATURES AND DRY CONDITIONS THROUGH SUNDAY EVENING.
A COLD FRONT IS SLIDING SOUTHEASTWARD ACROSS THE NORTH-CENTRAL MONTANA PLAINS AND WILL LIKELY EXIT THE REGION BY AROUND MIDNIGHT.
741 PM MST SAT FEB 27 2016 A WEAK UPPER LEVEL TROUGH OVER WYOMING WILL MOVE INTO NEBRASKA OVERNIGHT. GUSTY NORTHWEST WINDS WILL PREVAIL TONIGHT BEHIND THE ASSOCIATED COLD FRONT THAT IS DROPPING SOUTHEAST ACROSS THE STATE. A COOLER POST-TROUGH AIRMASS WILL BE IN PLACE WITH MORE SEASONAL TEMPERATURES AND LESS WIND. HIGH TEMPERATURES ARE STILL GOING TO BE SOME 5-10 DEGREES WARMER THAN NORMAL THOUGH. MOUNTAIN AREAS SHOULD ALSO BE DRY AS RIDGING ALOFT BEGINS BUILDING OVER THE STATE.
TEMPERATURES AT 3 PM RANGE FROM THE LOW 50S OVER RUSK AND BARRON COUNTIES IN WISCONSIN TO THE LOWER 60S ACROSS MOST OF CENTRAL MN. LOWS ARE EXPECTED TO BE WARMER THAN NORMAL HIGHS. ON SUNDAY AN UPPER LEVEL WAVE CURRENTLY LOCATED OVER THE ID/MT BORDER WILL REACH THE MIDWEST AND DRIVE A COLD FRONT THROUGH THE REGION.
A SW FLOW OF 5-10 MPH AROUND THIS RIDGE WAS BRINGING WARMER AIR TO THE REGION. WITH TROUGHING EXTENDING TO THE SOUTH ALONG THE EAST COAST.
TEMPS HAVE BEEN FALLING A BIT FASTER THAN EXPECTED IN THE NORTHWESTERN CWA BEHIND THE COLD FRONT AND LANGDON IS ALREADY 23.
A WINDY DAY WITH BLUSTERY SCATTERED SHOWERS BEHIND A COLD FRONT. WE WILL SEND OUT A STATEMENT ON THE HIGHER WIND GUSTS REPORTED TODAY AS WELL. THE COLD FRONT HAS MOVED A LITTLE QUICKER THIS AFTERNOON THAN THE MODELS HAD PREVIOUSLY INDICATED.
THIS WILL SERVE TO INCREASE MOISTURE IN THE LOW- LEVELS OF THE ATMOSPHERE. WINDS WILL BACK TO A MORE EAST TO SOUTHEAST DIRECTION SUNDAY NIGHT AS A WEAK COLD FRONT MOVES SOUTHWARD INTO WEST CENTRAL TEXAS.
601 PM EST SAT FEB 27 2016 LOW PRESSURE DEVELOPING IN THE DAKOTAS WILL TRACK SOUTHEAST ACROSS THE CENTRAL GREAT LAKES SUNDAY. A COLD FRONT TRAILING THE LOW WILL MOVE THROUGH THE REGION SUNDAY NIGHT.
A WEAK WARM FRONT IS BRINGING MID LEVEL CLOUDS TO THE AREA THIS MORNING. A WEAK COLD FRONT WILL BRING A PERIOD OF LIGHT RAIN SUNDAY MORNING.
HIGH PRESSURE AND VFR CONDITIONS EXPECTED THROUGH THE TAF PERIOD.
Lee trough deepening rapidly in eastern Colorado, providing strong SW winds and strong downslope components this afternoon. All model guidance sweeps associated dry cold front through SW KS between midnight and 6 AM Sunday. With all the mixing, morning temperatures Sunday will be very mild for late February, with most locales holding in the low to mid 40s /some 15 degrees above normal/. Very modest cool advection behind the cold front will "cool" afternoon temperatures 10-15 degrees from Saturday's readings, with highs in the 60s.
UPPER TROF WILL MOVE EAST-SOUTHEAST ACROSS THE NORTHERN PLAINS LATE TONIGHT. THE ASSOCIATED SURFACE TROF AND COLD FRONT WILL MOVE ACROSS THE AREA. WHILE COOLER.
AN AREA OF LOW PRESSURE AND SURFACE COLD FRONT WILL SLIDE ACROSS THE REGION TONIGHT THROUGH SUNDAY MORNING.
A COOLER POST-TROUGH AIRMASS WILL BE IN PLACE WITH MORE SEASONAL TEMPERATURES AND LESS WIND. HIGH TEMPERATURES ARE STILL GOING TO BE SOME 5-10 DEGREES WARMER THAN NORMAL THOUGH. MOUNTAIN AREAS SHOULD ALSO BE DRY AS RIDGING ALOFT BEGINS BUILDING OVER THE STATE.
832 PM CST SAT FEB 27 2016 South winds will stay up tonight with lee trough persisting to our west. A concomitant cold front will sweep into the region Sunday afternoon.
A QUIET BUT COOL NIGHT IS EXPECTED ACROSS THE TN VALLEY THANKS TO A LARGE AREA OF HIGH PRESSURE ACROSS THE REGION. WITH STRONG HIGH PRESSURE IN PLACE ACROSS THE CNTRL GULF COAST REGION. A SW FLOW OF 5-10 MPH AROUND THIS RIDGE WAS BRINGING WARMER AIR TO THE REGION. WITH TROUGHING EXTENDING TO THE SOUTH ALONG THE EAST COAST.
759 PM EST SAT FEB 27 2016 HIGH PRESSURE OVER THE GULF OF MEXICO WILL SETTLE DIRECTLY OVERHEAD TONIGHT. ALTHOUGH THE COOL AIRMASS IS IN THE PROCESS OF RETREATING NORTH AS MID LEVEL RIDGING BUILDS IN. THE POSITIONING OF THE HIGH PRESSURE WILL ALLOW FOR MAXIMIZED RADIATIONAL COOLING CONDITIONS WITH TEMPS IN THE MID 30S INLAND. THE COASTAL ZONES WILL RANGE FROM THE LOW TO MID 40S. HIGH PRESSURE WILL BUILD IN FROM THE WEST OVERNIGHT WITH VERY QUIET CONDITIONS CONTINUING THROUGH SUNDAY.
As the low level jet picks up this evening, winds will become gusty at KABI from the south. The lower elevation of the southern sites will keep winds from becoming as strong, but there may be some occasional gusts at these sites as well. These low clouds will continue through the later morning hours before a more southwesterly flow dries the lower levels out, and clears skies. A weak cold front will move into the area after 18Z/12PM, turning southwest winds to the north at KABI, KSJT, and KBBD by late afternoon.
947 PM EST SAT FEB 27 2016 HIGH PRESSURE OVER THE GULF STATES WILL BUILD EASTWARD AND DOMINATE THE REGION THROUGH THE REMAINDER OF THE WEEKEND.
/ISSUED 230 PM EST SAT FEB 27 2016/ HIGH PRESSURE WILL MOVE OVERHEAD TONIGHT AND TOMORROW. THE HIGH CENTER WILL BEGIN TO SHIFT EASTWARD AND WINDS WILL TURN MORE TO THE SW.
SUNDAY AFTERNOON THE FIRST IN A SERIES OF TROUGHS AND FRONTAL BOUNDARIES BEGINS TO PUSH INTO THE AREA. UPPER LEVEL FLOW IS ZONAL FOR MOST OF THE FORECAST PERIOD WITH A WEAK TROUGH COMING THROUGH ON SUNDAY NIGHT.
702 PM CST SAT FEB 27 2016 A COLD FRONT IS THE PRIMARY FOCUS OF THE SHORT TERM. IN THE LOWER AND MID LEVELS. AS THE TROUGH LIFTS ACROSS THE NORTHERN BORDER OF NEBRASKA OVERNIGHT. IN POST FRONTAL CONDITIONS TEMPERATURES WILL BE SLIGHTLY COOLER. SUNDAY NIGHT A WEAK COLD FRONT WILL BE CROSSING THE ROCKIES.
316 PM MST SAT FEB 27 2016 CURRENT VISIBLE SATELLITE LOOP SHOWS MID TO HIGH LEVEL CLOUDS DEVELOPING OVER THE HIGH PLAINS EARLIER TODAY AND PUSHING EASTWARD INTO NEBRASKA THIS AFTERNOON AS AN UPPER LEVEL DISTURBANCE AND ASSOCIATED COLD FRONT RAPIDLY MOVE EASTWARD INTO SOUTHEAST WYOMING. MAY NEED A WIND ADVISORY TONIGHT FOR PORTIONS OF THE NEBRASKA PANHANDLE AFTER THE COLD FRONT MOVES ACROSS THE AREA AND WINDS SHIFT INTO THE NORTHWEST. KEPT THUNDER SHOWERS IN THE FORECAST FROM NEAR DOUGLAS EASTWARD INTO THE NORTHERN NEBRASKA PANHANDLE THROUGH LATE THIS EVENING AS THE COLD FRONT MOVES ACROSS THE AREA. TEMPERATURES WILL BE 10 TO 20 DEGREES COOLER ON SUNDAY COMPARED TO TODAY.
SHORT TERM: (Through Sunday) Deepening trof over the Great Plains is beginning to kick the wind up across the area as the pressure gradient tightens. Between the mild start to the night and warm southwest wind, lows should be as much as 15 to 20 degrees warmer than last night.
THE CENTER OF HIGH PRESSURE WILL SLIDE EAST OF THE STATE ON SUNDAY WITH BOUNDARY LAYER WINDS VEERING EAST TO SOUTHEAST WHICH WILL ALLOW A WARMING TREND TO DEVELOP SUNDAY.
627 PM EST SAT FEB 27 2016 HIGH PRESSURE OVER THE GULF STATES WILL BUILD EASTWARD AND DOMINATE THE REGION THROUGH THE WEEKEND.
415 PM MST SAT FEB 27 2016 CURRENT VISIBLE SATELLITE LOOP SHOWS MID TO HIGH LEVEL CLOUDS DEVELOPING OVER THE HIGH PLAINS EARLIER TODAY AND PUSHING EASTWARD INTO NEBRASKA THIS AFTERNOON AS AN UPPER LEVEL DISTURBANCE AND ASSOCIATED COLD FRONT RAPIDLY MOVE EASTWARD INTO SOUTHEAST WYOMING. MAY NEED A WIND ADVISORY TONIGHT FOR PORTIONS OF THE NEBRASKA PANHANDLE AFTER THE COLD FRONT MOVES ACROSS THE AREA AND WINDS SHIFT INTO THE NORTHWEST. KEPT THUNDER SHOWERS IN THE FORECAST FROM NEAR DOUGLAS EASTWARD INTO THE NORTHERN NEBRASKA PANHANDLE THROUGH LATE THIS EVENING AS THE COLD FRONT MOVES ACROSS THE AREA. TEMPERATURES WILL BE 10 TO 20 DEGREES COOLER ON SUNDAY COMPARED TO TODAY.
Gusty southwest winds developed over the region this afternoon in response to tightening pressure gradient between a building area of high pressure along the Gulf Coast and a deepening lee side trough over eastern Colorado. The trough to our west will move across the forecast area on Sunday as a cold front.
940 PM CST SAT FEB 27 2016 AREAS OF LIGHT RAIN UPSTREAM THIS EVENING WILL MOVE SOUTHEAST ACROSS OUR CWA THROUGH THE NIGHT AS A SHORT WAVE TROUGH/MID LEVEL FRONTOGENESIS MOVES ACROSS OUR REGION. A SURFACE COLD FRONT WILL ALSO MOVE THROUGH BRINGING INCREASING NORTHWEST WINDS AND LOW CLOUDS TO THE EASTERN CWA. AN AREA OF LOW PRESSURE AND SURFACE COLD FRONT WILL SLIDE ACROSS THE REGION TONIGHT THROUGH SUNDAY MORNING.
WARMER TEMPS EXPECTED FOR SUNDAY ALONG WITH HIGHER HUMIDITY.
1036 PM EST SAT FEB 27 2016 BROAD HIGH PRESSURE OVER THE SOUTHEASTERN U. LOW PRESSURE WILL PASS TO THE NORTH OF THE STATE. CREATING A GUSTY SOUTHWEST WIND PRIOR TO DRAGGING A COLD FRONT THROUGH THE AREA LATE SUNDAY NIGHT.
HIGH PRESSURE AND CLEAR SKIES WILL CONTINUE OVERNIGHT AND SUNDAY. CHATTANOOGA AIRPORT, TN 35 67 47 66 / 0 0 20 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 36 64 46 63 / 0 0 20 20 OAK RIDGE, TN 34 65 46 63 / 0 0 20 20 TRI CITIES AIRPORT, TN 31 63 43 59 / 0 0 20 20.
HIGH PRESSURE OVER THE GULF IS INTERACTING WITH PRESSURE FALLS OVER THE HIGH PLAINS TO ENHANCE SOUTHEAST WINDS THIS AFTERNOON. HIGH TEMPS WILL WARM INTO THE LOWER OR MID 80S EXCEPT FOR MID TO UPPER 70S ALONG THE COAST. BENIGN WEATHER WITH LIGHT SOUTHEAST WINDS AND PARTLY TO MOSTLY CLOUDY SKIES WITH LOW TEMPERATURES IN THE LOWER TO MID 60S.
CURRENT TEMPS RUNNING A FEW DEGREES WARMER THAN PREVIOUSLY ANTICIPATED IN RELATIONSHIP TO OVERNIGHT LOWS. THUS KEEPING WINDS UP TONIGHT DESPITE UPPER LEVEL RIDGING INFLUENCES PROGRESSIVELY BUILDING INTO THE REGION AS THE NIGHTTIME HOURS PROGRESS. DO QUESTION BUT DO BELIEVE THAT THEY WILL BE A FEW DEGREES WARMER THAN PREVIOUSLY FORECASTED. RIDGING INFLUENCES SFC AND ALOFT WILL PROVIDE FOR VFR/SKC CONDITIONS THRU 28/24Z.
GIVEN THE COOLER AIR TRAPPED IN THE AREA AND DEWPOINTS SURGING. TAX LOW PRESSURE WILL MOVE FROM LOWER MICHIGAN TOWARDS WESTERN QUEBEC SUNDAY NIGHT. THE ASSOCIATED COLD FRONT WILL RACE EAST. PARTICULARLY IN THE HIGHER ELEVATIONS OF WV/MD.
915 PM EST SAT FEB 27 2016 HIGH PRES RIDGE IS CENTERED OVER THE NE GOMEX WITH ITS RIDGE AXIS EXTENDING EWD ACROSS NORTH FL. DROPPING TO 1-2FT ON SUNDAY AS HIGH PRES RIDGE CRESTS OVER FL.
633 PM EST SAT FEB 27 2016 HIGH PRESSURE TO OUR SOUTH AND GENERAL RIDGING ACROSS THE OHIO RIVER VALLEY HAS LED TO SW FLOW AND CLEAR CONDITIONS ACROSS MUCH OF KY. WHERE MOSTLY CLEAR SKIES AND A NOCTURNAL INVERSION WILL LIKELY LEAD TO SOME GOOD RIDGE VALLEY TEMPERATURE DIFFERENCES LATE IN THE NIGHT AND INTO EARLY TOMORROW MORNING. THIS WILL TRANSLATE TO A CENTER OF LOW PRESSURE MOVING ACROSS THE NORTHERN PLAINS AND MINNESOTA SATURDAY NIGHT. THE LOW PRESSURE SYSTEM SHOULD BE TRAVELING ACROSS THE GREAT LAKES. A COLD FRONT ATTACHED TO THIS LOW PRESSURE CENTER WILL THEN SWEEP EASTWARD AS WELL. GIVEN OUR LOCATION ALONG THE WEAKER CENTRAL TO SOUTHERN EXTENT OF THE COLD FRONT. AS WELL AS HIGH PRESSURE ON ITS TAILS PULLING IN DRIER AIR JUST BEHIND THE FRONTAL PASSAGE.
CURRENT VISIBLE SATELLITE LOOP SHOWS MID TO HIGH LEVEL CLOUDS DEVELOPING OVER THE HIGH PLAINS EARLIER TODAY AND PUSHING EASTWARD INTO NEBRASKA THIS AFTERNOON AS AN UPPER LEVEL DISTURBANCE AND ASSOCIATED COLD FRONT RAPIDLY MOVE EASTWARD INTO SOUTHEAST WYOMING. MAY NEED A WIND ADVISORY TONIGHT FOR PORTIONS OF THE NEBRASKA PANHANDLE AFTER THE COLD FRONT MOVES ACROSS THE AREA AND WINDS SHIFT INTO THE NORTHWEST. KEPT THUNDER SHOWERS IN THE FORECAST FROM NEAR DOUGLAS EASTWARD INTO THE NORTHERN NEBRASKA PANHANDLE THROUGH LATE THIS EVENING AS THE COLD FRONT MOVES ACROSS THE AREA. TEMPERATURES WILL BE 10 TO 20 DEGREES COOLER ON SUNDAY COMPARED TO TODAY.
915 PM CST SAT FEB 27 2016 HIGH PRESSURE REMAINS LOCATED OVER THE SOUTHEAST UNITED STATES THIS EVENING. SUNDAY AFTERNOON THE FIRST IN A SERIES OF TROUGHS AND FRONTAL BOUNDARIES BEGINS TO PUSH INTO THE AREA. UPPER LEVEL FLOW IS ZONAL FOR MOST OF THE FORECAST PERIOD WITH A WEAK TROUGH COMING THROUGH ON SUNDAY NIGHT.
600 PM CST SAT FEB 27 2016 LARGE LOW PRESSURE SYSTEM ACROSS WESTERN OHIO HAS KEPT NORTHERLY FLOW ACROSS IOWA.
THE COLD FRONT HAS MOVED A LITTLE QUICKER THIS AFTERNOON THAN THE MODELS HAD PREVIOUSLY INDICATED.
920 PM EST SAT FEB 27 2016 HIGH PRESSURE WILL GRADUALLY BUILD ACROSS THE SOUTHEAST THROUGH SUNDAY.
A strong pressure gradient will persist through the night across the area as low pressure deepens and moves across the northern Plains. A cold front tracks across the area between 6 AM and Noon on Sunday with a sharp wind shift out of the northwest and increasing gusts of 30 to 35 mph. The warm start and delayed modified cold advection with this front will still allow high temperatures to climb into the lower to middle 60s.
816 PM EST SAT FEB 27 2016 BROAD HIGH PRESSURE OVER THE SOUTHEASTERN U. LOW PRESSURE WILL PASS TO THE NORTH OF THE STATE. CREATING A GUSTY SOUTHWEST WIND PRIOR TO DRAGGING A COLD FRONT THROUGH THE AREA LATE SUNDAY NIGHT.
652 PM EST SAT FEB 27 2016 HIGH PRESSURE OVER THE GULF STATES WILL BUILD EASTWARD AND DOMINATE THE REGION THROUGH THE REMAINDER OF THE WEEKEND.
AHEAD OF AN APPROACHING TROF OVER THE WRN USA. THIS TROF WILL MOVE THRU 12 AM-12 PM WITH NW FLOW IN ITS WAKE TOMORROW AFTERNOON. BUT A PAC COLD FRONT WAS ADVANCING THRU THE WRN USA. COLD FRONTAL PASSAGE AND NW WINDS WILL CRANK IN THE PREDAWN HRS IN STRONG CAA. MUCH COOLER BUT HIGHS WILL STILL BE 10-15F ABOVE NORMAL. THE THERMAL TROF MOVES THRU 9AM-2PM AND BELIEVE THERE WILL BE SOME STRATOCU IN IT.
953 PM EST SAT FEB 27 2016 BROAD HIGH PRESSURE OVER THE SOUTHEASTERN U. LOW PRESSURE WILL PASS TO THE NORTH OF THE STATE. CREATING A GUSTY SOUTHWEST WIND PRIOR TO DRAGGING A COLD FRONT THROUGH THE AREA LATE SUNDAY NIGHT.
COLD FRONT MOVING THROUGH SOUTHEAST MONTANA WILL BRING GUSTY NORTHWEST WINDS OVERNIGHT. THIS EVENING THROUGH SUNDAY NIGHT COLD FRONT FROM LOW IN SOUTHERN CANADA JUST NORTH OF MT-ND BORDER ACROSS EASTERN MT INTO WESTERN WY WILL CROSS FORECAST AREA THIS EVENING THROUGH TONIGHT. ISOLATED TO SCATTERED RAIN SHOWERS MAY ALSO OCCUR AS THE UPPER TROF CROSSES NORTHERN PLAINS. SOME SNOW MAY MIX WITH THE RAIN OVER THE HIGHEST ELEVATIONS OF THE BLACK HILLS TOWARD MORNING. TROF WILL MOVE QUICKLY EASTWARD SUNDAY WITH SOME LINGERING SHOWERS IN THE MORNING OVER SOUTH CENTRAL SD AND NORTHERN BLACK HILLS.
UPPER RIDGE WILL REBUILD OVER OUR AREA TONIGHT AND SUNDAY. MID- LEVEL PACIFIC MOISTURE WILL MOVE THROUGH THE RIDGE BRINGING CLOUDINESS SUNDAY MORNING.
LOW PRESSURE DEEPENING OVER THE NRN PLAINS IN RESPONSE TO A POTENT SHRTWV TROF IN THE INTERMOUNTAIN WEST WILL KEEP THE BOUNDARY LAYER MIXED OVERNIGHT FOR A GOOD PART OF THE AREA. LARGE-SCALE ASCENT ASSOCIATED WITH BEFORE MENTIONED SHRTWV TROF WILL LARGELY MISS OUR CWA TO THE N OVER THE NEXT 24 HRS.
640 PM EST SAT FEB 27 2016 BROAD HIGH PRESSURE OVER THE SOUTHEASTERN U. LOW PRESSURE WILL PASS TO THE NORTH OF THE STATE. CREATING A GUSTY SOUTHWEST WIND PRIOR TO DRAGGING A COLD FRONT THROUGH THE AREA LATE SUNDAY NIGHT.
706 PM EST SAT FEB 27 2016 HIGH PRESSURE WILL KEEP SKIES MOSTLY CLEAR INTO SUNDAY MORNING. CLOUDS AND RAIN CHANCES WILL INCREASE BY LATE SUNDAY AFTERNOON INTO SUNDAY EVENING AS A WEAK COLD FRONT SWEEPS THROUGH THE REGION.
ALREADY GETTING GUSTS TO 43 MPH AT SCOTTSBLUFF WITH THE PASSAGE OF THE COLD FRONT. NO SIG CHANGES TO THE HIGH WIND WARNINGS ATTM. CURRENT VISIBLE SATELLITE LOOP SHOWS MID TO HIGH LEVEL CLOUDS DEVELOPING OVER THE HIGH PLAINS EARLIER TODAY AND PUSHING EASTWARD INTO NEBRASKA THIS AFTERNOON AS AN UPPER LEVEL DISTURBANCE AND ASSOCIATED COLD FRONT RAPIDLY MOVE EASTWARD INTO SOUTHEAST WYOMING. MAY NEED A WIND ADVISORY TONIGHT FOR PORTIONS OF THE NEBRASKA PANHANDLE AFTER THE COLD FRONT MOVES ACROSS THE AREA AND WINDS SHIFT INTO THE NORTHWEST. KEPT THUNDER SHOWERS IN THE FORECAST FROM NEAR DOUGLAS EASTWARD INTO THE NORTHERN NEBRASKA PANHANDLE THROUGH LATE THIS EVENING AS THE COLD FRONT MOVES ACROSS THE AREA. TEMPERATURES WILL BE 10 TO 20 DEGREES COOLER ON SUNDAY COMPARED TO TODAY.
849 PM MST SAT FEB 27 2016 A WINDY DAY WITH BLUSTERY SCATTERED SHOWERS BEHIND A COLD FRONT. WE WILL SEND OUT A STATEMENT ON THE HIGHER WIND GUSTS REPORTED TODAY AS WELL. THE COLD FRONT HAS MOVED A LITTLE QUICKER THIS AFTERNOON THAN THE MODELS HAD PREVIOUSLY INDICATED.
524 AM CST WED FEB 3 2016 The upper level trough that was the catalyst for yesterday's showers and thunderstorms, is swinging through the region this morning. These light rain and snow chances will continue through mid-morning before the upper level trough moves northeast into the Great Lakes region. The high pressure ridge will quickly shift east on Thursday and winds will return out of the southwest.
WINDS AND SEAS WILL INCREASE TO NEAR ADVISORY LEVELS BEHIND THE FRONT AS HIGH PRESSURE BUILDS INTO THE AREA FOR THE EARLY WEEKEND.
SURFACE COLD FRONT WAS ENTERING THE NORTHWEST TIER OF ZONES EARLY THIS MORNING. MIXED DOWN FROM PRE-FRONTAL RAINS THIS MORNING MAY ACT TO KEEP THE DAY COOLER CONSIDERING THE EVENTUAL FRONTAL PASSAGE AS WELL. MUCH COOLER CONDITIONS SET UP WITH LOWS IN THE UPPER HALF OF THE 30S OVER THE INTERIOR TO THE MID TO UPPER 40S.
422 AM CST WED FEB 3 2016 THE 09Z SFC ANALYSIS INDICATES OUR COLD FRONT HAS REACHED A BPT. THE PRESSURE GRADIENT SHOULD REMAIN TIGHT ENOUGH TODAY AHEAD OF SFC RIDGING BUILDING SE INTO THE SRN PLAINS FOR SOME OCCASIONAL WIND GUSTS BUT SHOULD REMAIN JUST BELOW LAKE WIND ADVISORY CRITERIA. WITH TEMPS EXPECTED TO FALL NEAR/BELOW FREEZING OVERNIGHT DESPITE SOME NW WINDS ESPECIALLY OVER THE ERN HALF OF THE REGION. AMPLIFYING THE TROUGH FARTHER S ACROSS TX TONIGHT. CANADIAN SFC RIDGING TO OUR W OVER TX WILL MOVE OVERHEAD THURSDAY.
THE COLD FRONT AND MAIN LINE OF CONVECTION IS NOT EXPECTED TO MOVE INTO WESTERN COUNTIES UNTIL THIS EVENING. A COLD FRONT WILL CROSS THE REGION TONIGHT. AHEAD OF AN APPROACHING COLD FRONT.
Significant clearing has taken place overnight which has helped freezing fog develop across much of Western Montana and North Central Idaho. While minor visibility reductions should be common through the morning hours, some localized areas of dense freezing fog have already been reported in the Flathead & Mission Valley. The freezing fog should begin to lift by late morning and be largely dissipated by the lunch hour with the increase of mid and high level cloud cover in advance of the next storm system.
HAVE UPDATED TO EXTEND THE HIGH RISK OF RIP CURRENTS UNTIL 12Z THURSDAY BASED ON WELL DEVELOPED SWELL OUT OF THE SOUTH COMBINED WITH AN OFFSHORE FLOW. SURFACE COLD FRONT WAS ENTERING THE NORTHWEST TIER OF ZONES EARLY THIS MORNING. MIXED DOWN FROM PRE-FRONTAL RAINS THIS MORNING MAY ACT TO KEEP THE DAY COOLER CONSIDERING THE EVENTUAL FRONTAL PASSAGE AS WELL. MUCH COOLER CONDITIONS SET UP WITH LOWS IN THE UPPER HALF OF THE 30S OVER THE INTERIOR TO THE MID TO UPPER 40S.
WINDS WILL RELAX TOWARD 00Z AS MIXING WANES AND HIGH PRESSURE BUILDS TOWARD THE REGION. THE COLD FRONT THAT WAS PRODUCING THE RISK OF SEVERE WEATHER AND FLOODING HAS MOVED EAST OF THE REGION AND HAS RECENTLY PASSED THE NEW ORLEANS METRO. A DRIER AND COOLER AIRMASS IS PUNCHING IN BEHIND THE DEPARTING FRONT.