Aikyam-Lab/Synoptic-Bench huggingface dataset:
/ISSUED 444 AM CST WED FEB 24 2016/ WRAPAROUND CLOUDS FINALLY CLEARING SE TX THIS MORNING AS THE MAIN UPPER LOW MOVES OFF TO THE E/NE. NO SIGNIFICANT ISSUES THESE NEXT SEVERAL DAYS AS UPPER LEVEL RIDGING TO THE WEST KEEPS A STEADY NW FLOW ALOFT IN PLACE ACROSS THE REGION. THE STRONG NW WINDS MIXING DOWN TO THE SFC SHOULD BE WEAKENING BY THIS AFTN AS HIGH PRESSURE BUILDS OVER THE AREA. A REINFORCING SHOT OF COOL/DRY AIR EXPECTED THURS WITH ANOTHER COLD FRONT. THE UPPER RIDGE BREAKING DOWN OVER THE WEEKEND WILL ALSO COINCIDE WITH THE RETURN OF ONSHORE WINDS ACROSS THE AREA. RAIN CHCS COULD BE ENHANCED BY TUES/WEDS WITH THE POSSIBLE DEVELOPMENT OF A STRONG UPPER LOW TO OUR W/NW. HIGH PRESSURE BUILDS BRIEFLY BEFORE THE NEXT FRONT ARRIVES THURSDAY LATE AFTERNOON.
A COLD FRONT WAS MOVING QUICKLY SOUTH THROUGH THE HIGH PLAINS. A COOLER AIRMASS BEHIND THE FRONT WILL TAKE HIGH TEMPERATURES BACK DOWN INTO THE LOWER TO MIDDLE 50S ON THURSDAY.
1040 AM CST WED FEB 24 2016 THE FOUR STATE REGION REMAINED UNDER THE INFLUENCE OF THE LARGE UPPER LEVEL LOW PRESSURE SYSTEM. AND SMALLER DISTURBANCES ROUNDING THE BROAD TROUGH ACROSS THE LOWER MISSISSIPPI VALLEY. WHERE MVFR CONDITIONS CONTINUE AS LOW CLOUDS CONTINUE TO WRAP AROUND A LOW PRESSURE SYSTEM IN ARKANSAS. EXPECT VFR CONDITIONS TO SPREAD TO ALL THE SITES BY 24/21Z AS THE LOW CONTINUES TO MOVE ENE OUT OF THE REGION. /ISSUED 431 AM CST WED FEB 24 2016/ A LOOK AT WATER VAPOR IMAGERY THIS MORNING INDICATES UPPER LEVEL LOW HAS EJECTED NEWD INTO THE MID MS VALLEY WITH WRAP AROUND STILL ENCOMPASSING MUCH OF OUR REGION. PARTS OF E TX ARE ALREADY CLEARING WITH THE ADVECTION OF MUCH DRIER AIR WITH DEEP NW FLOW SETTING UP BEHIND OUR RECENT COLD FRONT.
WITH SOUTHWESTERLY AND DOWNSLOPE WINDS ALONG THE FOOTHILLS OF FAR EAST TENNESSEE AND SOUTHWEST VIRGINIA WARMING THE IMMEDIATE VALLEYS INTO THE LOW TO MID 60S. A COLD FRONT WILL MOVE INTO THE REGION THIS AFTERNOON. WILL ALLOW THE HIGH WIND WARNING TO EXPIRE AT 18Z. CHATTANOOGA AIRPORT, TN 58 37 43 29 / 80 60 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 59 36 40 28 / 80 70 20 30 OAK RIDGE, TN 59 35 40 28 / 90 70 20 30 TRI CITIES AIRPORT, TN 63 32 36 25 / 80 70 70 70 NC.
STRONG COLD FRONT PUSHING ACROSS THE AREA THIS AFTERNOON. ONE LAST CLUSTER OF SHOWERS AND STORMS MOVING OFFSHORE THE LOWER NE FL COAST. WINDS WILL DECREASE TONIGHT AS THE LOW LEVEL JET DECREASES SOME BUT WINDS WILL STILL REMAIN ELEVATED AND GUSTY ESPECIALLY NEAR THE COAST. MUCH COOLER AND DRIER AIR WILL MOVE INTO THE AREA BEHIND THE FRONT TONIGHT AND THURSDAY AS A CANADIAN HIGH BUILDS INTO THE UPPER PLAINS AND MID WEST. THE STRONG PRESSURE GRADIENT BETWEEN THE HIGH AND THE DEPARTING STORM SYSTEM WILL CONTINUE TO PRODUCE BREEZY TO GUSTY WEST WINDS BUT WINDS WILL NOT BE AS STRONG AS TODAY. SECONDARY DRY COLD FRONTAL PASSAGE PUSHES THROUGH THE REGION FROM NORTH TO SOUTH AND THIS WILL BRING A FEW SCATTERED CLOUDS FOR A BRIEF PERIOD OF TIME.
Much of western Montana and central Idaho have seen another nice day due to a ridge of high pressure continuing to build over the Northern Rockies. The ridge of high pressure will begin to break down this weekend, but before that happens, enjoy the next couple of days.
153 PM CST WED FEB 24 2016 FORECAST AREA WAS BETWEEN STRONG LOW PRESSURE MOVING NORTHWARD THROUGH THE OHIO RIVER VALLEY REGION AND A WEAKER TROUGH OF LOW PRESSURE MOVING SOUTHEAST THROUGH THE DAKOTAS. RADAR MOSAIC SHOWING NORTHWEST PERIPHERY OF THE SNOW ASSOCIATED WITH THE LOW ACROSS FAR SOUTHEAST WI/EASTERN IL. CLOUDS LOOK TO LINGER ACROSS THE AREA OVERNIGHT AS LOWER LEVEL MOISTURE IS TRAPPED UNDER NARROW W-E MID-LEVEL RIDGE MOVING IN FROM THE NORTH. PLAN ON OVERNIGHT LOWS IN THE LOWER TO MIDDLE 20S. RATHER BRISK NORTHERLY WIND FOR THURSDAY IN TIGHT PRESSURE GRADIENT BETWEEN DEEP LOW PRESSURE OVER THE EASTERN GREAT LAKES AND HIGH PRESSURE BUILDING IN FROM THE PLAINS. INCREASING MID/HIGH LEVEL CLOUDS EXPECTED FOR THURSDAY NIGHT AHEAD OF A WAVE OF LOW PRESSURE AND WARM FRONT MOVING THROUGH SOUTHERN CANADA/NORTHERN MN.
IN ADDITION, WE'RE STARTING A BIT WARMER THAN YESTERDAY, SO HIGH TEMPERATURES SHOULD BE ABLE TO PUSH INTO THE 60'S TODAY. HIGH PRESSURE BUILDS OVER THE WATERS THIS AFTERNOON THROUGH THURSDAY.
A cold front will move across the area on Thursday, shifting winds to the northeast. Temperatures will warm back into the lower 60s across the area with abundant sunshine available for heating. This will keep temperatures on the cool side, with highs on Thursday ranging from the upper 50s across the Big Country, to the lower and middle 60s across southern portions of the forecast area.
A POWERFUL UPPER LEVEL LOW AND ACCOMPANYING SURFACE CYCLONE THAT WILL TRACK THROUGH THE TN AND OH VALLEYS. A TRAILING COLD FRONT WILL SWEEP EAST ACROSS OUR REGION LATE THIS AFTERNOON AND EVENING. BLUSTERY CONDITIONS WILL FOLLOW AS HIGH PRESSURE BUILDS EAST TONIGHT AND THU. SHOULD BE EAST OF THE AREA BY 7 PM WITH LINGERING SHOWERS ALONG THE MAIN COLD FRONT. SHORT WAVE ENERGY WILL CONTINUE TO ROTATE ACROSS THE OHIO VALLEY AROUND THE MAIN UPPER TROF THURSDAY AND THURSDAY NIGHT.
TURNING DRY AND MUCH COOLER THURSDAY. HIGH PRESSURE AT THE SURFACE BUILDS FROM THE HIGH PLAINS DOWN TO TEXAS THEN EAST ACROSS THE GULF COAST AND NORTHERN GULF OF MEXICO. DEEPENING UPPER LEVEL LOW OVER THE EASTERN GREAT LAKES LIFTS NORTHEAST. BROAD TROUGHING ASSOCIATED WITH THE LOW REACHES ALL THE WAY INTO THE SOUTHWESTERN GULF OF MEXICO PUSHES THE SURFACE OVER FLORIDA. HIGH PRESSURE OVER THE NORTHWEST GULF/TX/LA SHIFTS EAST TO NORTH/CENTRAL FLORIDA SUN. HIGH PRESSURE OVER FLORIDA MON SLOW SHIFTS NORTH THROUGH WED. HIGHS IN THE LOW/MID 70S. WINDS WILL BE LIGHTER AS HIGH PRESSURE SETTLES INTO THE AREA WITH A WEAKER PRESSURE GRADIENT.
A COLD FRONT WILL ENTER THE NORTHWESTERN ZONES AFTER MIDNIGHT TONIGHT AND MOVE THROUGH THE SOUTHEASTERN PART OF THE FORECAST AREA BY MID MORNING THURSDAY. HIGHS THURSDAY WILL BE IN THE MID 50S ALONG THE RED RIVER TO THE LOWER AND MID 60S ACROSS PARTS OF CENTRAL TEXAS.
347 PM CST WED FEB 24 2016 LARGE LOW PRESSURE SYSTEM ACROSS WESTERN OHIO HAS KEPT NORTHERLY FLOW ACROSS IOWA.
435 PM EST WED FEB 24 2016 A COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT AND ALLOW STRONG NORTHWEST WINDS TO USHER COLDER AIR INTO THE REGION. UPSLOPE SNOW SHOWERS CAN BE EXPECTED WEST OF THE BLUE RIDGE WITH SOME LIGHT ACCUMULATIONS AT THE HIGHER ELEVATIONS. HIGH PRESSURE WILL THEN BUILD IN WITH FAIR AND SEASONABLE WEATHER EXPECTED THROUGH THE WEEKEND. THE ACTUAL SURFACE FRONT WILL BE MOVING THROUGH THE REGION THIS EVENING BUT WINDS WILL REMAIN SWLY FOR A WHILE BEFORE SHIFTING TO THE NORTHWEST TONIGHT SO IT WILL BE A WHILE BEFORE THE COLDER ARRIVES WITH UPSLOPE SNOWS DEVELOPING WEST OF THE BLUE RIDGE.
1142 AM CST WED FEB 24 2016 DEEP LOW PRESSURE MOVING NORTHEAST THROUGH THE OHIO VALLEY TODAY WILL BRING CYCLONIC FLOW TO IOWA THROUGH TODAY.
A COLD FRONT ACROSS NWRN KS WILL PUSH THROUGH THE AREA TONIGHT BRINGING A RE-INFORCING SURGE OF COOLER/DRIER AIR FOR THURSDAY.
WITH AN EMBEDDED SHORT WAVE TRANSLATING SOUTH AND EAST ACROSS THE HIGH PLAINS AS UPPER LEVEL RIDGING CONTINUES TO BUILD ACROSS THE WEST COAST AND AND GREAT BASIN REGION. AS UPPER RIDGING CONTINUES TO BUILD EAST. SHOULD SEE SOME WARMING ALOFT THROUGH THE DAY TOMORROW WITH HIGHS AT OR SLIGHTLY WARMER THAN TODAY ACROSS THE WESTERN HALF OF THE AREA. THOUGH LIGHT UPSLOPE FLOW ACROSS THE EASTERN PLAINS WILL KEEP HIGHS SOME 5-10F COOLER THAN TODAY.
THE CENTER OF THE HIGH OVER TX WILL MOVE ACROSS THE NW GULF OVERNIGHT. CHANCE OF PRECIPITATION LATE SUN INTO NEXT MON AS ANOTHER WEAK COLD FRONT MOVES ACROSS THE REGION. GFS & ECMWF DIVERGE GREATLY WITH THE INABILITY TO HANDLE WHETHER THE TROF WILL CUTOFF INTO A LOW OR NOT OVER THE REGION.
230 PM CST WED FEB 24 2016 UPPER LEVEL LOW WITH SEVERAL EMBEDDED CIRCULATION CENTERS MOVING THROUGH WESTERN AND CENTRAL NORTH DAKOTA.
WITH SFC TEMPS EXPECTED TO REMAIN ABOVE FREEZING AT CKV THROUGHOUT THE FORECAST PERIOD, NO SNOW ACCUMS ARE EXPECTED. SFC TEMPS ARE EXPECTED TO REMAIN ABOVE FREEZING AT BNA THROUGH THE FORECAST PERIOD, THEREBY PROHIBITING SNOW ACCUM. HOWEVER, TEMPS ARE FORECAST TO REACH FREEZING OVERNIGHT AT CSV, AND A WINTER WEATHER ADVISORY IS IN EFFECT FOR THE CUMBERLAND PLATEAU FOR MIDNIGHT TONIGHT THROUGH NOON THURSDAY, FOR ONE TO TWO INCHES OF SNOW ACCUM.
311 PM CST WED FEB 24 2016 21Z SURFACE MAP SHOWED A 987MB LOW PRESSURE CENTERED OVER OHIO. AS ITS PARENT UPPER LOW LIFTS INTO THE EASTERN GREAT LAKES.
ISSUED BY NATIONAL WEATHER SERVICE LAKE CHARLES LA 1014 AM CST WED FEB 24 2016 COOLER AIR FILTERING DOWN INTO THE REGION AS MODERATE NORTHWEST FLOW WITH GUSTY WINDS CONTINUE THIS MORNING. TEMPERATURES WERE A TAD BIT COOLER THAN THE HOURLY FORECAST GRIDS. AS LOW PRESSURE TO THE NORTH MOVES AWAY CEILINGS WILL GRADUALLY LIFT AND CLEAR AND WINDS WILL DECREASE THIS AFTERNOON AND EVENING. /ISSUED 517 AM CST WED FEB 24 2016/ STRONG AND GUSTY WEST WINDS ACROSS THE AREA THIS MORNING AS THE PRESSURE GRADIENT REMAINS TIGHT BEHIND A DEPARTING LOW PRESSURE SYSTEM OVER WRN TN. GRADIENT WILL GRADUALLY LOOSEN TODAY AND TONIGHT AS THE LOW CONTINUES TO PULL AWAY TO THE NE AND HIGH PRESSURE BUILDS INTO THE WRN GULF. COOLER AND DRIER WEATHER EXPECTED TO PREVAIL INTO THE WEEKEND.
DEEP LOW PRESSURE OVER SOUTHERN OHIO WILL TRACK NORTHEAST TO LAKE ERIE THROUGH THIS EVENING. WHILE A WARM FRONT MOVES NORTH ACROSS MARYLAND. A COLD FRONT IS EXPECTED TO CROSS THE MID-ATLANTIC THIS EVENING. HIGH PRESSURE BUILDS IN FOR THE END OF THE WEEK. WARM FRONT CURRENTLY ANALYZED ALONG THE I-95 CORRIDOR FROM FREDERICKSBURG VA TO ABERDEEN MD. MODEL GUIDANCE STILL SHOW STRONG PRESSURE FALLS IN THE ORDER OF 8-10 MB/3HR SO EXPECTING WARM FRONT TO PUSH A BIT NORTHWARD OVER THE NEXT SVRL HOURS.
DEWPOINTS HAVE FALLEN INTO THE LOW TO MID 20S ACROSS THE REGION WITH WIND GUSTS UPWARDS OF 20 TO 25 MPH AT TIMES. BELOW NORMAL LOWS ARE EXPECTED ACROSS THE REGION WITH SOME POCKETS OF FREEZING TEMPERATURES IN THE HILL COUNTRY AND COOL DRAINAGE AREAS IN THE RIVER VALLEYS ALONG THE I-35 CORRIDOR.
358 PM EST WED FEB 24 2016 A STRONG LOW PRESSURE SYSTEM OVER WESTERN KY AT MID AFTERNOON WILL STRENGTHEN AS IT LIFTS NORTHEAST ACROSS THE UPPER OHIO VALLEY AND LOWER GREAT LAKES REGION.
1233 PM EST WED FEB 24 2016 STRENGTHENING LOW PRESSURE LIFTS NORTHEAST.
Clear skies areawide this afternoon as a result of strong subsidence on the back side of the exiting upper trough and upper ridging to the west. By later this afternoon, high temperatures will about 5-10 degrees warmer than yesterday. A weak cold front arrives Thursday morning, shifting winds to the northeast and briefly stalling the warming trend.
SW sfc flow will give way to a cold front arriving around sunrise Thursday, w/fropa thru KMAF, KHOB, and KINK by the end of the forecast period. /issued 300 AM CST WED FEB 24 2016/ The upper low has passed well to the east as an upper ridge centered over the West Coast begins to build in.
HIGH PRESSURE STRENGTHENING ACROSS THE AREA WILL BRING LIGHTER WINDS ALONG WITH A WARMING TREND THROUGH THE WEEKEND. MILD AND DRY CONDITIONS WILL DOMINATE AS WE CLOSE OUT THE MONTH THANKS TO A STRONG HIGH PRESSURE RIDGE. RELATIVELY FLAT HIGH PRESSURE RIDGE OVERHEAD NOW WILL STRENGTHEN OVER THE COMING DAYS AS IT BUILDS ACROSS THE SOUTHWEST.
DRY AND WARM AS AN UPPER RIDGE CONTROLS THE WEATHER. A WEAK COLD FRONT WILL BRING LIMITED SHOWERS TO NORTHERN NEVADA ON THE WEEKEND. SURFACE TEMPS ARE RESPONDING TO THIS WARMTH AND INDICATIVE THAT THE SNOW COVERAGE IN THE LOWER ELEVATIONS IS LOSING ITS INFLUENCE. DRY AND WARM AS AN UPPER RIDGE CONTROLS THE WEATHER. A WEAK COLD FRONT WILL BRING LIMITED SHOWERS TO NORTHERN NEVADA ON THE WEEKEND.
1012 AM CST WED FEB 24 2016 Departing upper level low continues to result in gusty northwest winds in much of the area with some low clouds persisting across NW Arkansas into far NE Oklahoma.
215 PM CST WED FEB 24 2016 UPPER LOW CENTERED OVER INDIANA THIS AFTERNOON WILL CONTINUE TO LIFT NORTHEAST TONIGHT AND BE IN THE NORTHEAST ON THURSDAY. TEMPS WARM ENOUGHT TONIGHT SHOULDN'T SEE ANY ACCUMULATIONS EXCEPT IN UPPER CUMBERLAND WHERE TEMPS WILL BE JUST BELOW FREEZING.
134 PM EST WED FEB 24 2016 A STRONG LOW PRESSURE SYSTEM OVER WESTERN KY EARLY THIS AFTERNOON WILL STRENGTHEN AS IT LIFTS NORTHEAST ACROSS THE UPPER OHIO VALLEY AND LOWER GREAT LAKES REGION.
THE AREA OF LOW PRESSURE THAT BROUGHT US ALL OF THIS RAINFALL IS CURRENTLY OVER SOUTH CENTRAL KENTUCKY WITH ITS TRAILING COLD FRONT EXTENDING THROUGH WESTERN GEORGIA AND NEAR THE TALLAHASSEE AREA. THE HIGH TEMPERATURE WAS ALREADY MET THIS MORNING AND EXPECT THE TEMPERATURES TO FALL TO AROUND 40 DEGREES VERY LATE THIS AFTERNOON. DUE TO THE PROXIMITY OF THE LOW. DUE TO SOME ENERGY ROTATING AROUND THE LOW THROUGH THE AREA. THE FINAL ROUND OF TSRA ALONG A PREFRONTAL TROUGH HAS SHIFTED EWD INTO NW GEORGIA -- WITH STRONG COLD FRONT CURRENTLY APPROACHING THE MSL TERMINAL. WINDS WILL VEER TO WSW AS COLD FRONT INITIALLY CROSSES THE TERMINALS.
IT REMAINS A PARTLY CLOUDY DAY ACROSS SOUTH FLORIDA, AND THE SUNSHINE IN COMBINATION WITH BREEZY SOUTHERLY FLOW HAS BROUGHT HIGH TEMPS INTO THE LOW 80S SO FAR. WITH DEWPOINTS IN THE LOW 70S AND THE WARM TEMPERATURES, LOW LEVEL INSTABILITY IS COMPARABLE TO SUMMERTIME LEVELS.
225 PM MST WED FEB 24 2016 HIGH PRESSURE WILL REMAIN THE DOMINANT WEATHER FEATURE THROUGH THE WEEKEND. THE SWRN CONUS REMAINS SITUATED IN A NWLY FLOW REGIME LOCATED DOWNSTREAM OF ELONGATED RIDGING EXTENDED ALONG THE NORTH AMERICAN WEST COAST. THOUGH SOME MEASURE OF COOLER AIR ADVECTING SOUTH WAS STILL EVIDENT IN OBJECTIVE ANALYSIS. DESPITE THE RECENT COOLER CONDITIONS. HOWEVER A STOUT INVERSION AND ELEVATED MIXED LAYER AROUND THE H7 LAYER HAS TRAPPED MUCH COOLER AIR IN THE SFC-H8 LAYER. THIS BOUNDARY LAYER INVERSION WILL EVENTUALLY BE FULLY MIXED AWAY IN THE NEXT COUPLE DAYS AS THE RIDGE AXIS TRANSLATES INLAND RESULTING IN A RESUMPTION OF MUCH WARMER THAN AVERAGE CONDITIONS.
THE AREA OF LOW PRESSURE THAT BROUGHT US ALL OF THIS RAINFALL IS CURRENTLY OVER SOUTH CENTRAL KENTUCKY WITH ITS TRAILING COLD FRONT EXTENDING THROUGH WESTERN GEORGIA AND NEAR THE TALLAHASSEE AREA. THE HIGH TEMPERATURE WAS ALREADY MET THIS MORNING AND EXPECT THE TEMPERATURES TO FALL TO AROUND 40 DEGREES VERY LATE THIS AFTERNOON. DUE TO THE PROXIMITY OF THE LOW. DUE TO SOME ENERGY ROTATING AROUND THE LOW THROUGH THE AREA. KTW A RATHER DEEP CYCLONE IN THE 988MB RANGE CONTINUES MOVING NORTHWARD ACROSS THE OHIO VALLEY REGION. A STRONG PRESSURE GRADIENT AROUND THIS LOW WILL PRODUCE STRONG WESTERLY WINDS INTO THE EARLY EVENING ACROSS THE REGION.
UPDATED FORECAST TO INCLUDE PATCHY FREEZING FOG ACROSS MUCH OF NWRN AND WEST-CENTRAL VALLEYS AS WELL AS MID AND UPPER RGV INCLUDING THE SANTA FE AND ABQ METRO AREAS THROUGH LATE MORNING. PATCHY FREEZING FOG. DEVELOPING ACROSS THE LOWER ELEVATIONS OF THE NW THIRD OR SO OF THE STATE THIS MORNING. TRANQUIL WEATHER RETURNS TO NEW MEXICO TODAY AS HIGH PRESSURE SLOWLY BUILDS IN FROM THE WEST. TEMPERATURES WILL WARM ALL AREAS TODAY BUT A WEAK BACKDOOR COLD FRONT WILL BRING A BRIEF COOL DOWN TO EASTERN NEW MEXICO THURSDAY.
THE FIRST WEAK FRONT WILL MOVE THROUGH LATE THIS EVENING AND BRING SLIGHTLY COOLER TEMPERATURES TOMORROW.
A BROKEN LINE OF SNOW SHOWERS HAS DEVELOPED ALONG THE COLD FRONT AS IT HAS MOVED QUICKLY ACROSS NORTHWEST SD EARLY THIS MORNING. TODAY THROUGH THURSDAY NIGHT WITH COLD FRONT TRAILING WESTWARD ACROSS MT. WITH NORTHWEST FLOW OVER THE REGION AHEAD OF RIDGING OVER THE WEST COAST. COLD FRONT AND WEAKENING UPPER LEVEL SYSTEM WILL TRACK SOUTHEAST ACROSS THE REGION TODAY. BRINGING GUSTY WINDS AND COOLER AIR. WEAKENING UPPER LOW WILL TRACK EAST OF THE CWA TODAY. THE FRONT TO THE SOUTH AND WEST OF THE REGION ON THURSDAY WILL BEGIN TO MOVE BACK EAST ACROSS THE CWA AS A WARM FRONT THURSDAY NIGHT.
CAVU THROUGH THE PERIOD AS HIGH PRESSURE DRIFTS ACROSS THE REGION. CONCUR WITH THE GFS THAT STRONG SUBSIDENCE EXPECTED TODAY OVER THE CWA/MSA BEHIND AN UPPER LOW THAT LIFT RAPIDLY TOWARD THE NORTHEAST. SIGNIFICANTLY WARMER THURSDAY OWING TO AIRMASS MODIFICATION.
1025 AM MST WED FEB 24 2016 CANCELLED THE HIGH WIND WARNING EARLY FOR SOUTHWEST PLATTE COUNTY.
341 PM CST WED FEB 24 2016 WEAK SUBSIDENCE AND RIDGING ALOFT WAS FOUND ACROSS THE NORTHLAND THIS AFTERNOON. AN UPPER TROF WAS LOCATED TO THE SOUTHEAST OVER INDIANA. WITH A SECONDARY UPPER LOW OVER THE EASTERN DAKOTAS. HIGHS ON THURSDAY WILL TREND A BIT COOLER BEHIND THE COOL FRONT WITH READINGS IN THE 20S TO LOW 30S. AS HIGH PRESSURE BUILDS INTO THE FORECAST AREA THURSDAY NIGHT.
310 PM CST WED FEB 24 2016 GUSTY NORTHWEST WINDS BEHIND A COLD FRONT WILL SUBSIDE TONIGHT. SEASONABLE TEMPERATURES EXPECTED AS HIGH PRESSURE CROSSES THE AREA. WARM AIR ADVECTION WILL BEGIN AS WARMER AIR BEGINS TO ADVECT EAST OFF OF THE HIGHER TERRAIN TO THE WEST.
/ISSUED 1012 AM CST WED FEB 24 2016/ Departing upper level low continues to result in gusty northwest winds in much of the area with some low clouds persisting across NW Arkansas into far NE Oklahoma.
HIGH PRESSURE OVER THE WESTERN GREAT BASIN WILL REMAIN IN PLACE THROUGH THE REMAINDER OF THE WEEK. A STRONG RIDGE REMAINS CENTERED TO OUR WEST THIS MORNING WITH A VERY DRY SUBSIDENT AIRMASS OVER OUR CWA. SOME HIGH CLOUDS ARE STREAMING THRU THE RIDGE BUT THESE ARE MOSTLY THIN. THE RIDGE GRADUALLY NUDGES EWD TOMORROW THRU FRI WITH OCCASIONAL MOSTLY THIN HIGH CLOUDS CROSSING THE AREA. THE WARMS A BIT TODAY THEN AGAIN ON FRI AS THE LOW LEVEL FLOW FLIPS TO SWLY. QUICK LOOK AT NEW GFS STILL HAS A COLD FRONT FOR SAT. MAINLY HIGH CLOUDS WILL REMAIN UNDER HIGH PRESSURE.
BRIEF RESPITE FROM PRECIPITATION AND WINDS LATE THIS EVENING AS THE LOW PIVOTS TO OUR NORTHWEST AND BECOMES VERTICALLY STACKED. COLD AIR WILL BEGIN TO POUR IN BEHIND THE LOW OVERNIGHT. THINK THE MAX GUSTS WILL GET CLOSE TO ADVISORY LEVEL IN THE HIGHEST ELEVATIONS. TAX SNOW SHOWERS WILL INCREASE THURSDAY INTO THURSDAY NIGHT AS BACKLASH SNOW WILL WORK ACROSS REGION WITH UPSLOPE FLOW AND FAIRLY DEEP MOISTURE BRINGING BETTER ACCUMULATIONS IN THE RIDGES. WITH 2 TO 4 IN THE HIGHER RIDGES.
1252 PM CST WED FEB 24 2016 RIDGE CONTINUES TO DOMINATE THE WESTERN CONUS. WHILE A DEEP TROUGH IS IN THE EAST. THIS PLACES THE HIGH PLAINS IN FAST MOVING NORTHWEST FLOW. WHERE WINDS HAVE FALLEN TO AROUND 5 MPH OR LESS TEMPS HAVE COOLED INTO THE LOWER 20S AND TEENS. WHICH IS ACTUALLY CLOSE TO SEASONAL NORMS AND ONE OF THE COOLER NIGHTS FOR MANY LOCATIONS IN RECENT DAYS. LINGERING CLOUDS IN THE EAST TOWARDS MORNING WILL KEEP TEMPS IN THE LOWER TO MID 20S.
457 PM EST WED FEB 24 2016 A STRONG LOW PRESSURE SYSTEM OVER WESTERN KY AT MID AFTERNOON WILL STRENGTHEN AS IT LIFTS NORTHEAST ACROSS THE UPPER OHIO VALLEY AND LOWER GREAT LAKES REGION.
329 PM EST WED FEB 24 2016 A STRONG LOW PRESSURE SYSTEM OVER WESTERN KY AT MID AFTERNOON WILL STRENGTHEN AS IT LIFTS NORTHEAST ACROSS THE UPPER OHIO VALLEY AND LOWER GREAT LAKES REGION.
255 PM EST WED FEB 24 2016 SKIES ARE PARTLY TO MOSTLY CLOUDY WITH TEMPERATURES MAINLY IN THE LOWER 80S ACROSS THE FLORIDA KEYS. THE LEADING EDGE OF A BAND OF SHOWERS ASSOCIATED WITH THE APPROACHING COLD FRONT IS DRAPED FROM NEAR FORT MYERS TO ABOUT 50 MILES NORTHWEST OF FORT JEFFERSON NATIONAL PARK.
/ISSUED 1040 AM CST WED FEB 24 2016/ THE FOUR STATE REGION REMAINED UNDER THE INFLUENCE OF THE LARGE UPPER LEVEL LOW PRESSURE SYSTEM. AND SMALLER DISTURBANCES ROUNDING THE BROAD TROUGH ACROSS THE LOWER MISSISSIPPI VALLEY. /ISSUED 431 AM CST WED FEB 24 2016/ A LOOK AT WATER VAPOR IMAGERY THIS MORNING INDICATES UPPER LEVEL LOW HAS EJECTED NEWD INTO THE MID MS VALLEY WITH WRAP AROUND STILL ENCOMPASSING MUCH OF OUR REGION. PARTS OF E TX ARE ALREADY CLEARING WITH THE ADVECTION OF MUCH DRIER AIR WITH DEEP NW FLOW SETTING UP BEHIND OUR RECENT COLD FRONT.
ISSUED BY NATIONAL WEATHER SERVICE LAKE CHARLES LA 306 PM CST WED FEB 24 2016 COOL BREEZY DAY ACROSS THE FORECAST AREA AS THE POWERFUL STORM SYSTEM YESTERDAY HAD MOVED INTO THE EASTERN UNITED STATES LEAVING THE REGION ON THE BACKSIDE OF THE UPPER LEVEL TROUGH. HIGH PRESSURE CONTINUED TO BUILD IN AT THE SURFACE. HIGH PRESSURE WILL BEGIN TO BUILD IN ALOFT AND AT THE SURFACE THROUGH THE REST OF THE WEEK AND EVEN INTO THE WEEKEND. COOLER THAN NORMAL TEMPERATURES WILL REMAIN THE MAIN STORY OVER THE NEXT FEW DAYS AS COLD NIGHT TEMPERATURES AND COOL DAYTIME TEMPERATURES WILL PREVAIL.
Much, if not all, of this pcpn is falling as snow as temps hover in the lower 30s, but the western edge is warming up into the upper 30s and it is here where some rain will mix back in with the pcpn as it ends.
A WEAK COLD FRONT WILL BRING A WIND SHIFT TO ALL TERMINALS LATER THIS EVENING AS IS PROGRESSES THROUGH. /ISSUED 416 AM CST WED FEB 24 2016/ AS THE UPPER LEVEL LOW CONTINUES TO MOVE OFF TO OUR EAST. AN INTENSIFYING UPPER LEVEL RIDGE TO OUR WEST WILL PROVIDE NORTHWESTERLY FLOW ALOFT.
THE HEAT WAVE CONTINUES THROUGH THE SHORT TERM AS THE MID/UPPER RIDGE BEGINS TO BUILD FARTHER EASTWARD, BECOMING CENTERED NEAR AND JUST WEST OF THE FORECAST AREA. DIURNAL CONVECTION SHOULD BE MORE LIMITED TO THE SOUTHEASTERN QUADRANT OF THE AREA ON FRIDAY AS THE RIDGE CONTINUES TO BUILD IN.
335 AM MDT THU JUL 16 2015 A cold front will move through the area today, which will increase cloud cover and breezy winds gusting up 25 to 35 mph at times as it moves through this afternoon.
113 AM EDT THU JUL 16 2015 A WEAK COLD FRONT WILL LINGER ACROSS THE SOUTHERN SOUTH CAROLINA MIDLANDS TONIGHT INTO THURSDAY. THEN DISSIPATE FRIDAY AS HIGH PRESSURE BUILDS IN FROM THE NORTH. A WEAK WEST-EAST ORIENTED COLD FRONT LINGERING ALONG AN AIKEN- ORANGEBURG-KINGSTREE LINE AT MIDNIGHT.
WV IMAGERY AND 00Z UPPER AIR ANALYSIS INDICATE AN UPPER LEVEL HIGH PRESSURE CENTER SITUATED ACROSS EAST TEXAS. NEAR THE SURFACE, A TROUGH OF LOW PRESSURE EXTENDS FROM THE OKLAHOMA PANHANDLE NORTHEASTWARD INTO SOUTHWEST AND CENTRAL KANSAS. FOR TONIGHT, A WARM FRONTAL BOUNDARY IS FORECAST TO SLOWLY LIFT NORTH THIS EVENING INTO THE HAYS AREA. FOR FRIDAY, BROAD SOUTHWESTERLY UPPER FLOW WILL BE ACROSS THE CENTRAL PLAINS WITH A TROUGH OF LOW PRESSURE IN FAR EASTERN COLORADO, SOUTH WINDS WILL BE BREEZY AT 15 TO 25 MPH.
444 AM CDT THU JUL 16 2015 DEWPOINTS A BIT LOWER TODAY AND TEMPERATURE A DEGREE OR TWO COOLER. UPPER RIDGE HOLDING FAST OVER TEXAS SOUTHEAST OKLAHOMA AND GULF STATES WILL PROVIDE CONVECTIVE PROTECTION ON THROUGH THE WEEKEND.
433 AM EDT THU JUL 16 2015 HIGH PRESSURE BUILDING SOUTHEAST FROM THE GREAT LAKES WILL BRING A DRIER WEATHER PATTERN THROUGH FRIDAY. THE CURRENT IR SAT PICS SHOW THE RELATIVELY WARMER WATER OF THE WEST BRANCH AND MAINSTEM SUSQ RIVER AND IN THE LARGER RESERVOIRS LIKE THE ALLEGHENY. 1020 MB HIGH PRESSURE WILL SLIP EASTWARD FROM THE UPPER GREAT LAKES PROVIDING A SUNNY DAY WITH LITTLE/NO HAZE AND VERY COMFORTABLE BUT SLIGHTLY BELOW NORMAL TEMPS. TEMPS WILL GET BACK TO SEASONAL NORMALS ON FRIDAY AFTER A SLIGHTLY COOLER THAN NORMAL START TO THE DAY THANKS TO THE VERY LIGHT SRLY WIND. THERE MIGHT BE SOME LOW CLOUDS IN THE HIGHER ELEVATIONS OF THE SOUTH ON FRIDAY MORNING.
137 AM EDT THU JUL 16 2015 HIGH PRESSURE WILL BUILD ACROSS THE AREA TONIGHT. WITH HIGH PRESSURE IN CHARGE. BACK EDGE OF DEPARTING UPPER LOW IS PRODUCING CONVECTIVE SHOWERS IN EASTERN SULLIVAN COUNTY NY TO FAR EASTERN PIKE COUNTY PA. HIGH PRESSURE. THERE WILL BE ENOUGH PRESSURE GRADIENT FOR NORTH-NORTHEAST WIND TO CONTINUE BLOWING ON THE RIDGES. THURSDAY NIGHT HIGH PRESSURE MOVING EAST FROM OUR CWA INTO NEW ENGLAND. INCREASING CLOUDS AHEAD OF A WARM FRONT. STRONG SHORT WAVE AND UL TROF PASSES THROUGH FRIDAY NIGHT ACROSS SE ONTARIO. SFC FRONT GOES SE THROUGH THE CWA FRI NGT THEN SLOWS AS IT HITS THE COAST AND THE UL TROF SLOWS AND STRENGTHENS IN SE CANADA.
HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE SOUTHERN PLAINS. UPPER RIDGING WILL EXTEND INTO THE FORECAST AREA FROM THE SOUTHERN PLAINS. THE HIGH-RESOLUTION MODELS DISPLAY ISOLATED COVERAGE. FORECASTED POPS OF 10 TO 20 PERCENT WITH THE HIGHER CHANCE IN THE SOUTHEAST PART. EXPECT TEMPERATURES A FEW DEGREES COOLER TODAY COMPARED TO YESTERDAY BECAUSE OF THE LACK OF A WEST AND DOWNSLOPE WIND COMPONENT. THE GUIDANCE WAS CLOSE WITH LOWS IN THE LOWER AND MIDDLE 70S. THE GFS AND ECMWF DISPLAY THE UPPER RIDGING SHIFTING FARTHER WEST OVER THE WEEKEND.
MID/UPPER LEVEL RIDGING WILL REMAIN POSITIONED ACROSS TEXAS WITH SUBSIDENCE KEEPING DRY AND HOT CONDITIONS THROUGH THE SHORT TERM.
218 AM EDT THU JUL 16 2015 HIGH PRESSURE BUILDS IN OVERNIGHT. WITH THE COOLER AIR AND CLEARING.