Aikyam-Lab/Synoptic-Bench huggingface dataset:
818 PM EDT TUE MAR 22 2016 HIGH PRESSURE OVER THE CAROLINA COAST WILL WILL ALLOW WARM AIR TO MOVE NORTH INTO OUR REGION. HIGHS WILL RANGE FROM THE MID 50S IN SOUTHERN LOWER MICHIGAN TO THE LOWER 60S IN WEST CENTRAL INDIANA.
/ISSUED 350 PM CDT TUE MAR 22 2016/ STRENGTHENING UPPER LEVEL TROUGH ACROSS THE GREAT BASIN LATE THIS AFTERNOON WILL CONTINUE DIGGING AND STRENGTHENING REACHING PEAK MATURATION ON WEDNESDAY TO OUR NORTH. COLD FRONT SHOULD ARRIVE JUST BEFORE 00Z ACROSS THE NORTHERN COUNTIES.
LOOKING FOR WARMER OVERNIGHT TEMPS. /ISSUED 640 PM CDT TUE MAR 22 2016/ 00Z TAFS FAIRLY COMPACT PRESSURE GRADIENT ACROSS THE REGION THIS AFTERNOON SETUP BY A DEPARTING HIGH PRESSURE AREA MOVING OFF THE EAST COAST AND A ROBUST LOW MOVING INTO KANSAS. WITH LOW PRESSURE BEGINNING TO FORM OVER EASTERN COLORADO. AS THE LOW FORMS. THE SOUTH WINDS ARE BRINGING IN WARMER TEMPERATURES AND LOW LEVEL MOISTURE.
As winds become light to calm, temperatures will fall into the lower 40s across most of the forecast area under clear skies.
932 PM CDT TUE MAR 22 2016 FOR LATE EVENING UPDATE HAVE ADDED THE POTENTIAL FOR SOME LIGHT FREEZING DRIZZLE OVER NORTHERN LOCATIONS SPREADING SOUTHWARD THROUGH THE LATE EVENING. OBSERVER REPORTED FREEZING DRIZZLE NEAR LANSFORD EARLIER THIS EVENING IN AREA OF ELEVATED LOW LEVEL MOISTURE AHEAD OF DRIER AIR PUSHING INTO THE AREA. THE 12 UTC GLOBAL MODEL GUIDANCE PORTRAYS A SIMILAR SCENARIO WITH THE CHANCE OF LIGHT SNOW INCREASING OVER MUCH OF THE AREA ALONG AND WEST OF THE HIGHWAY 83 CORRIDOR TONIGHT.
827 PM EDT TUE MAR 22 2016 TEMPERATURES WILL STAY ABOVE NORMAL UNTIL A LATE WEEK COLD FRONT.
731 PM EDT TUE MAR 22 2016 TEMPERATURES WILL STAY ABOVE NORMAL UNTIL A LATE WEEK COLD FRONT.
925 PM EDT TUE MAR 22 2016 A COLD FRONT WILL DROP INTO NORTHERN NEW YORK AND STALL.
A STRONG COLD FRONT WILL SWEEP THRU ALL TAF SITES WED AFTERNOON. A STRONG COLD FRONT WILL SWEEP THRU ALL TAF SITES WED AFTERNOON. FALLING PRESSURES AND TIGHTENING PRESSURE GRADIENTS WILL PRODUCE WINDY CONDITIONS AHEAD OF ASSOCIATED STRONG COLD FRONT.
Included a TEMPO for thunderstorm at the western Arkansas sites after 02z as dryline/cold front pushes across the area.
640 PM CDT TUE MAR 22 2016 00Z TAFS FAIRLY COMPACT PRESSURE GRADIENT ACROSS THE REGION THIS AFTERNOON SETUP BY A DEPARTING HIGH PRESSURE AREA MOVING OFF THE EAST COAST AND A ROBUST LOW MOVING INTO KANSAS. WITH LOW PRESSURE BEGINNING TO FORM OVER EASTERN COLORADO. AS THE LOW FORMS. THE SOUTH WINDS ARE BRINGING IN WARMER TEMPERATURES AND LOW LEVEL MOISTURE.
A STRONG COLD FRONT WILL SWEEP THRU ALL TAF SITES WED AFTERNOON. FALLING PRESSURES AND TIGHTENING PRESSURE GRADIENTS WILL PRODUCE WINDY CONDITIONS AHEAD OF ASSOCIATED STRONG COLD FRONT.
UPPER LEVEL TROUGH IS BEGINNING TO SHIFT FROM NORTHWEST MONTANA INTO WESTERN WYOMING AT THIS TIME.
1040 PM EDT TUE MAR 22 2016 TEMPERATURES WILL STAY ABOVE NORMAL UNTIL A LATE WEEK COLD FRONT.
917 PM MST TUE MAR 22 2016 A PACIFIC LOW PRESSURE SYSTEM WILL MOVE INLAND ACROSS THE GREAT BASIN. BRINGING COOLER TEMPERATURES THROUGH WEDNESDAY. AFTER THE LOW PRESSURE SYSTEM MOVES EAST LATE WEDNESDAY. BRINGING CLEAR SKIES AND WARMER TEMPERATURES THROUGH THE WEEKEND. EXCEPT FOR CONTINUED BREEZINESS AND WINDS VEERING OUT OF THE NORTH ACROSS THE LOWER COLORADO RIVER VALLEY. A POWERFUL FAST MOVING PACIFIC TROF MOVED ASHORE LAST NIGHT.
834 PM EDT TUE MAR 22 2016 HIGH PRESSURE WILL SHIFT EAST INTO THE ATLANTIC TONIGHT WITH THE RIDGE AXIS EXTENDING BACK ACROSS THE AREA. HIGH PRESSURE WILL CONTINUE TO DRIFT EAST OF THE AREA WITH SOUTHERLY WINDS IN THE 10 TO 15 KNOT RANGE OVERNIGHT.
HAVE AN AREA OF RAIN STRETCHING FROM REDIG TO AREAS BETWEEN MOBRIDGE AND PIERRE. ADDITIONALLY GUIDANCE HAS SHIFTE THE WHOLE SYSTEM SOUTH AS ARCTIC HIGH PRESSURE AND DRY AIR INTRUDE INTO THE NORTHEAST. JONES/LYMAN/STANLEY COUNTIES ARE LIKELY TO SEE THE HIGHEST ACCUMULATIONS. THE LOW PRESSURE SYSTEM WILL MOVE QUICKLY TO THE EAST ON WEDNESDAY EXITING THIS CWA BY EARLY TO MID AFTERNOON. WARMER TEMPS AND WETTER SNOW SHOULD KEEP ANY BLOWING TO A MINIMUM ONCE THE SNOW STOPS.
HIGH PRESSURE RIDGE AXIS ACROSS NORTH FLORIDA WAS PROVIDING A LIGHT EAST/SOUTHEAST WIND FLOW. SURFACE FLOW IS RATHER LIGHT SO INTERIOR SECTIONS SHOULD COOL OFF AS ADVERTISED INTO THE LOWER 50S. HIGH PRESSURE RIDGE AXIS WAS CLOSER TO THE NORTHERN WATERS AND EAST/SOUTHEAST WINDS WERE 5-10 KNOTS THERE. THE RIDGE WILL STRENGTHEN A LITTLE LATE TONIGHT AND ON WED.
/ISSUED 244 PM EDT TUE MAR 22 2016/ RIDGE AT THE SURFACE AND ALOFT WILL CONTINUE TO DRIFT EAST OVERNIGHT WITH THE FLOW BECOMING MORE SOUTHWEST.
ONE INTERESTING ASPECT TO TOMORROW'S WEATHER IS THE POSSIBILITY OF A HABOOB DEVELOPING IN THE PANHANDLE IF HIGH-BASED VIRGA SHOWERS DEVELOP ALONG AND NORTH OF THE COLD FRONT, THEIR DOWNDRAFTS POTENTIALLY HELPING TO ENHANCE DUST CONCENTRATIONS ALONG THE BOUNDARY. /ISSUED 350 PM CDT TUE MAR 22 2016/ STRENGTHENING UPPER LEVEL TROUGH ACROSS THE GREAT BASIN LATE THIS AFTERNOON WILL CONTINUE DIGGING AND STRENGTHENING REACHING PEAK MATURATION ON WEDNESDAY TO OUR NORTH. COLD FRONT SHOULD ARRIVE JUST BEFORE 00Z ACROSS THE NORTHERN COUNTIES.
EXPECT DRY WEATHER AND SOUTHERLY WINDS TONIGHT AS HIGH PRESSURE SITS OUT TO OUR EAST OVER NORTHERN FLORIDA. THESE WINDS AND INCREASED SOUTHERLY FLOW WILL HELP OVERNIGHT LOWS NOT GET AS COLD AS THEY HAVE BEEN WITH THE WARMER READINGS BEING IN THE WEST IN THE LOWER TO MID 50S.
A COLD FRONT WILL CONTINUE TO PUSH ACROSS NORTHERN ARIZONA THIS EVENING WITH BREEZY WINDS AND A SLIGHT CHANCE OF SHOWERS NORTH OF I-40 AND EAST OF FLAGSTAFF THROUGH MIDNIGHT.
A COLD PACIFIC TROUGH WILL CROSS THE GREAT BASIN THROUGH TONIGHT.
748 AM EDT FRI APR 17 2015 HIGH PRESSURE EXPECTED TO BUILD OVER THE REGION TODAY AND TONIGHT.
625 AM CDT FRI APR 17 2015 DEEP UPPER LEVEL LOW WILL CONTINUE TO CHURN OVER THE FOUR CORNERS THIS MORNING THEN BEGIN TO SLOWLY LIFT NORTHEAST INTO THE CENTRAL ROCKIES THROUGH TONIGHT. TEMPERATURES SHOULD BE SIMILAR TO YESTERDAY OR A FEW DEGREES WARMER. NUDGED TOWARDS THE WARMER END OF GUIDANCE SIMILAR TO THE BCCONSALL. RELATIVELY MOIST DEWPOINTS REMAIN PRIMARILY IN THE 40S EARLY THIS MORNING BUT WILL INCREASE INTO THE LOWER 50S IN THE MISSOURI VALLEY BY THIS AFTERNOON. HOWEVER AS THE UPPER LEVEL LOW ARRIVES IN THE CENTRAL HIGH PLAINS LATE TONIGHT. ISENTROPIC LIFT AND PWAT VALUES WILL INCREASE SATURDAY AHEAD OF THE UPPER LOW AS IT MOVES EAST INTO THE CENTRAL PLAINS. AN APPROACHING NORTHERN STREAM WAVE WILL HELP PUSH A COLD FRONT THROUGH THE AREA SATURDAY NIGHT.
A MAIN UPPER LOW IS SPINNING OFF OVER THE FOUR CORNERS REGION IS WILL BE THE WEATHER MAKER OVER THE CENTRAL/SOUTHERN PLAINS FOR THE NEXT FEW DAYS. BILLINGS WRIGHT THIS PERIOD REMAINS ACTIVE WITH THE UPPER LOW SLOWLY SPINNING OVER THE FOUR CORNERS AND SLOWLY EJECTING EASTWARD OVER THE NEXT 3 DAYS. THE UPPER LOW WILL APPROACH FROM THE WEST.
1023 AM EDT FRI APR 17 2015 A TROF OF LOW PRESSURE EXITS THE MID ATLANTIC STATES THIS AFTERNOON. HIGH PRESSURE BUILDS OVER THE AREA THIS WEEKEND.
AN UPPER LEVEL ANTI-CYCLONE IS SLOWLY SLIDING ACROSS THE WESTERN GULF OF MEXICO. A ROBUST UPPER LOW IS SPINNING OVER THE COLORADO FLAT IRONS. CLOSER TO HOME WE FIND THE KEYS AREA IN THE EASTERN ENVELOP OF THE GULF ANTI-CYCLONE ALOFT. THE TROUGH CURRENTLY MOVING INTO THE CENTRAL PLAINS WILL CONTINUE TO HEAD EASTWARD.
1002 AM EDT FRI APR 17 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH TONIGHT.
1023 AM MDT FRI APR 17 2015 A WEAK RIDGE IS OVER THE ZONES AND THE AIRMASS WILL REMAIN WARM AND DRY TODAY. A CANADIAN COLD FRONT WILL BEGIN TO PUSH SOUTHWARD THROUGH THE REGION. THE COLD FRONT SHOULD ARRIVE IN CUT BANK AROUND 09Z SAT AND IN THE GREAT FALLS/HAVRE AREA AROUND 12Z SAT.
DUE TO NORTHWESTERLY FLOW AND HEAVY CLOUD COVER THROUGHOUT THE DAY, TEMPERATURES FOR TODAY WILL RANGE FROM THE LOW 70S IN THE NORTHERN COUNTIES TO MID AND HIGH 70S NEAR THE COAST.
AS IT RUNS INTO REMAINING SURFACE RIDGING. HOLDING ONTO WARMER AFTERNOON HIGHS.
/ISSUED 502 AM CDT FRI APR 17 2015/ WATER VAPOR IMAGERY INDICATES THE NEARLY STATIONARY UPPER LOW SPINNING ACROSS THE FOUR CORNERS REGION WITH ENHANCED CONVECTION EAST OF THE ROCKIES FROM WRN OK DOWN TO THE RED RIVER IN NW TX. LEADING TO MODERATE INSTABILITY WITH FAIRLY STRONG MID-LEVEL LAPSE RATES COMBINED WITH THE ADDED LIFT AND DIVERGENCE ALOFT DUE TO THE UPPER TROF TO OUR NW. OUR FOCUS WILL SHIFT MORE TO A HEAVY RAIN THREAT AS THE UPPER TROF SHIFTS FARTHER EAST INTO OUR REGION AS THE UPPER LOW EJECTS FROM THE ROCKIES OUT OVER THE PLAINS. THE HIGHEST RAINFALL AMOUNTS ARE EXPECTED TO BE ACROSS E TX AND N LA GENERALLY ALONG SOUTH OF I-20.
919 AM EDT FRI APR 17 2015 A WEAK COLD FRONT WILL PUSH THROUGH THE REMAINDER OF THE REGION TODAY. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT FOR TONIGHT AND WILL REMAIN OVER THE GREAT LAKES AND OHIO VALLEY ON SATURDAY.
WEAKENING UPPER TROUGH MOVING EAST INTO AREA THIS AFTERNOON. CHATTANOOGA AIRPORT, TN 72 57 80 63 / 40 10 40 90 KNOXVILLE MCGHEE TYSON AIRPORT, TN 73 56 80 61 / 20 10 30 80 OAK RIDGE, TN 73 58 81 61 / 20 10 30 80 TRI CITIES AIRPORT, TN 75 51 80 55 / 20 10 20 60.
THE FIRST EPISODE OF STRONG TO SEVERE STORMS IS FORECAST TO BEGIN ACROSS THE NORTHWEST PART OF OUR REGION/SOUTHERN EDWARDS PLATEAU THIS MORNING AS A PRE- FRONTAL TROUGH PUSHES FROM THE EAST. RAIN CHANCES INCREASE AS THE PRE-FRONTAL TROUGH PUSHES TO THE EAST AND A WEAK OLD BOUNDARY APPROACHES FROM THE COASTAL PLAINS IN THE AFTERNOON.
917 AM EDT FRI APR 17 2015 A WEAK COLD FRONT WILL CROSS THE REGION TODAY. LOW PRESSURE WILL APPROACH FROM THE NORTHWEST TONIGHT THEN CROSS THE AREA ON SATURDAY.
1045 AM EDT FRI APR 17 2015 A WEAK COLD FRONT WILL MOVE ACROSS CENTRAL NEW YORK EARLY THIS AFTERNOON AND NORTHEAST PENNSYLVANIA BY LATE AFTERNOON. ANOTHER COLD FRONT WILL PASS ACROSS THE REGION SATURDAY.
SUNNY AND WARMER TODAY WITH UPPER RIDGE OVERHEAD. SHORT WAVE TROUGH AND ASSOCIATED SURFACE COLD FRONT WILL COME IN FROM THE NORTHWEST SATURDAY WITH GUSTY WINDS. AND SLIGHT COOLER TEMPS.
UPPER LEVEL LOW REMAINS CLOSED OFF NEAR THE FOUR CORNERS AND WILL FINALLY OPEN UP INTO THE MAIN FLOW LATE THIS WEEKEND. UNTIL THEN SHORT WAVES WILL CONTINUE TO MOVE THROUGH THE EASTERN SIDE OF THE TROUGH AND TOWARDS OUR FORECAST AREA.
ONCE THE FOG LIFTS LATER THIS MORNING A NICE MILD SPRING DAY IS SHAPING UP ACROSS CENTRAL AND SOUTHEAST IL WITH WEAK HIGH PRESSURE OVER IN AND SOME UPPER LEVEL RIDGING INTO IL GIVING MOSTLY SUNNY SKIES AND LIGHT WINDS AND MILD HIGHS IN THE MID TO UPPER 70S. UPPER LEVEL RIDGE INTO THE OHIO RIVER VALLEY AND IL YET ON SATURDAY TO BRING ANOTHER MILD SPRING DAY IN THE MID TO UPPER 70S SATURDAY, WITH MILDEST READINGS NEAR THE IN BORDER WHERE MORE SUNSHINE EXPECTED.
1118 AM EDT FRI APR 17 2015 DRIER AND WARMER WEATHER IS EXPECTED TO BEGIN THE WEEKEND AS HIGH PRESSURE BEGINS TO MOVE IN. HIGH PRESSURE WILL BEGIN TO ERODE THE WESTERN EDGE OF THE CLOUDS THROUGH THE AFTERNOON.
WITH AN ASSOCIATED COLD FRONT MOVING THROUGH THE REGION MID-LATE AFTERNOON. HOW WARM WE GET AHEAD OF THE COLD FRONT IS A CHALLENGE. SPLIT FLOW ALOFT WAS OVER NORTH AMERICA WITH FLOW OVER SOUTHERN CANADA AND UPPER LOW OVER THE FOUR CORNERS. UPPER LEVEL TROUGH OVER THE WEST COAST OF CANADA WILL MOVE INTO THE HIGH PLAINS BY SAT AND BEGIN TO AMPLIFY. PRECIPITABLE WATER MAY RISE SOME WITH APPROACHING COLD FRONT OUT OF CANADA THIS AFTERNOON. WITH PASSAGE OF SHORT WAVE OVER SOUTHERN CANADA, A COLD FRONT WILL MOVE INTO THE NORTHERN HALF OF THE RED RIVER VALLEY THIS AFTERNOON AND BACK DOOR INTO THE AREA TONIGHT.
SPLIT FLOW ALOFT WAS OVER NORTH AMERICA WITH FLOW OVER SOUTHERN CANADA AND UPPER LOW OVER THE FOUR CORNERS. UPPER LEVEL TROUGH OVER THE WEST COAST OF CANADA WILL MOVE INTO THE HIGH PLAINS BY SAT AND BEGIN TO AMPLIFY. PRECIPITABLE WATER MAY RISE SOME WITH APPROACHING COLD FRONT OUT OF CANADA THIS AFTERNOON. WITH PASSAGE OF SHORT WAVE OVER SOUTHERN CANADA, A COLD FRONT WILL MOVE INTO THE NORTHERN HALF OF THE RED RIVER VALLEY THIS AFTERNOON AND BACK DOOR INTO THE AREA TONIGHT.
1000 AM EDT FRI APR 17 2015 WEAK COLD FRONT CROSSES THIS MORNING. WEAK HIGH PRESSURE FOLLOWS TONIGHT AND SATURDAY.
1034 AM EDT FRI APR 17 2015 SURFACE AND LOW LEVEL RIDGE EXTENDS RIGHT ACROSS SOUTH FLORIDA THIS MORNING LEADING TO A SE/S WIND FLOW AT THESE LEVELS AS THE FRONTAL BOUNDARY ACROSS NORTH-CENTRAL FLORIDA BECOMES STATIONARY THIS AFTERNOON.
PACIFIC COLD FRONT EXPECTED TO MOVE EASTWARD. INFLUX OF DRY AIR WITH PACIFIC COLD FRONT AND DRYLINE EXPECTED TO LIMIT PRECIPITATION TODAY IN WESTERN SECTIONS. CLOSED MID-LEVEL LOW PRESSURE SYSTEM CURRENTLY OVER NORTHWEST NEW MEXICO EXPECTED TO MAKE A SLOW TREK TO THE EAST TODAY THROUGH SATURDAY EVENING.
/ISSUED 336 AM CDT FRI APR 17 2015/ BROAD SOUTHWEST FLOW ALOFT REMAINS IN PLACE ACROSS THE MID SOUTH TODAY OUT AHEAD OF A LARGE UPPER LEVEL LOW PRESSURE SYSTEM SPINNING OVER THE FOUR CORNERS REGION OF THE INTERMOUNTAIN WEST.
1057 AM CDT FRI APR 17 2015 WEAK RIDGING OVER THE REGION KEEPING MILD WEATHER IN PLACE. ONCE THE FOG LIFTS LATER THIS MORNING A NICE MILD SPRING DAY IS SHAPING UP ACROSS CENTRAL AND SOUTHEAST IL WITH WEAK HIGH PRESSURE OVER IN AND SOME UPPER LEVEL RIDGING INTO IL GIVING MOSTLY SUNNY SKIES AND LIGHT WINDS AND MILD HIGHS IN THE MID TO UPPER 70S. UPPER LEVEL RIDGE INTO THE OHIO RIVER VALLEY AND IL YET ON SATURDAY TO BRING ANOTHER MILD SPRING DAY IN THE MID TO UPPER 70S SATURDAY, WITH MILDEST READINGS NEAR THE IN BORDER WHERE MORE SUNSHINE EXPECTED.
EVEN WARMER CONDITIONS ARE EXPECTED BY THIS WEEKEND ALONG WITH DRY CONDITIONS. THE EXCEPTION WILL BE THE SOUTHERN SIERRA WHERE AN ISOLATED SHOWER IS POSSIBLE WITH THE APPROACH OF A WEAK LOW PRESSURE SYSTEM. CLOUDS ON BACKSIDE OF UPPER LOW NEAR THE FOUR CORNERS REGION WILL CONTINUE AFFECT NORTHWEST ARIZONA AND SOUTHWEST UTAH TODAY. ANY SHOWER ACTIVITY WILL STAY JUST EAST OF NORTHERN MOHAVE COUNTY IN THE HIGHER TERRAIN OF THE KIABAB PLATEAU.
A WEAK LOW PRESSURE SYSTEM WILL MOVE ACROSS THE AREA TODAY BUT WILL HAVE LITTLE IMPACT EXCEPT TO STRENGTHEN THE ONSHORE FLOW. HIGH PRESSURE ALOFT WILL PREVAIL OVER THE REGION THIS WEEKEND FOR DRY. THE TAIL END OF A WEAK COLD FRONT WAS MOVING ACROSS THE CWA AT THIS TIME. EXPECT THE UPPER TROF TO MOVE ACROSS THE AREA THIS AFTERNOON. AN UPPER RIDGE WILL BUILD OVER THE REGION FROM THE WEST TONIGHT. AN OFFSHORE UPPER RIDGE WILL BUILD AS IT MOVES INSIDE OF 130W ON SATURDAY. ASIDE FROM BRIEF MORNING CLOUDS MAINLY ALONG THE COAST AND IN THE LOWER CHEHALIS VALLEY. NORTHWEST PRESSURE GRADIENTS WILL KEEP THE LOW LEVEL FLOW WEAKLY ONSHORE. BUT IT SHOULD BE A LITTLE WARMER WITH HIGHS MAINLY 60 TO 70.
ANOTHER TROUGH OF LOW PRESSURE WILL DROP DOWN FROM CANADA ON SATURDAY AND BRING SCATTERED TO NUMEROUS SHOWERS TO THE NORTH COUNTRY.
A COLD UPPER LOW NEAR THE FOUR CORNERS AREA WILL CONTINUE TO DRIFT SLOWLY EAST THROUGH TONIGHT. THE UPPER LOW WHICH HAS BEEN SLOWLY MEANDERING AROUND THE REGION OVER THE PAST COUPLE OF DAYS IS GRADUALLY DRIFTING EAST TOWARD THE CENTRAL ROCKIES THIS MORNING. THIS EASTWARD DRIFT WILL CONTINUE TONIGHT THROUGH SATURDAY WITH THE LOW ENDING UP OVER THE CENTRAL HIGH PLAINS BY LATE SATURDAY AFTERNOON.
716 AM EDT FRI APR 17 2015 A TROF OF LOW PRESSURE MOVES ACROSS THE MID ATLANTIC STATES TODAY. HIGH PRESSURE BUILDS OVER THE AREA THIS WEEKEND.
657 AM CDT FRI APR 17 2015 NO SIGNIFICANT CHANGES FROM PREVIOUS THINKING THROUGH THE SHORT TERM PERIODS AS AN UPPER LEVEL LOW ACROSS THE DESERT SOUTHWEST WILL SLOWLY LIFT NORTHEASTWARD OVER THE NEXT 24 HOURS. AS WEAK PERTURBATIONS ROTATE AROUND THIS UPPER LEVEL LOW. EXPECT THE POSSIBILITY FOR SOME STRONG TO POTENTIALLY SEVERE THUNDERSTORMS TO DEVELOP LATER THIS AFTERNOON AND EVENING WITH ANY OF THE STRONGER VORT MAXES ROTATING AROUND THE UPPER LOW. THE UPPER LEVEL LOW WILL MOVE ONTO THE HIGH PLAINS SATURDAY.
651 AM CDT FRI APR 17 2015 AN UPPER LEVEL TROUGH OF LOW PRESSURE CURRENTLY OVER THE FOUR CORNERS REGION WILL SLOWLY CROSS THE CENTRAL PLAINS ON SATURDAY. A DRY AIR MASS OVER MOST OF THIS CWA TODAY WITH DEW POINTS LIKELY FALLING INTO THE LOWER 20S SHOULD KEEP PCPN CHANCES CONFINED TO THE I-90 CORRIDOR AT BEST.
1243 PM EDT FRI APR 17 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH TONIGHT.
1146 AM EDT FRI APR 17 2015 A WEAK COLD FRONT WILL CROSS THE REGION TODAY. LOW PRESSURE WILL APPROACH FROM THE NORTHWEST TONIGHT THEN CROSS THE AREA ON SATURDAY.
THE WARM FRONT WILL EXTEND EAST FROM THE LOW CENTER. WITH COLD FRONT EXTENDING TO THE SOUTHWEST. NORTH OF THE WARM FRONT. SOUTH OF THE LOW TRACK A FEW STRONG STORMS WILL BE POSSIBLE AS THE COLD FRONT CROSSES. THIS TROUGH WILL BE THE FOCUS FOR ADDITIONAL CONVECTION INTO THE AFTERNOON AND EVENING HOURS. A WEDGE OF HIGHER WINDS IS EXPECTED TO THE NORTH OF THE LOW.
UPPER RIDGING WILL BUILD OVER THE PANHANDLES TODAY TO CONTINUE DRY WEATHER AND A GRADUAL WARMING TREND. MOST OF THE AREA WILL REACH INTO THE LOW TO MID 70S BUT AREAS THAT RECEIVED SIGNIFICANT PRECIP WITH OUR LAST SYSTEM MAY STOP JUST SHORT OF THE 70 DEGREE MARK. THE UPPER RIDGE WILL BE WELL ESTABLISHED OVER THE PANHANDLES BY THURSDAY WHICH WILL ALLOW TEMPERATURES TO WARM INTO THE UPPER 70S AND LOWER 80S AREA WIDE.
SFC ANALYSIS HAS HIGH PRESSURE OVER W TX THIS MORNING WHICH SHOULD SLOWLY DRIFT OVER S TX AND THE UPPER TX COAST BY THUR. WINDS THEN DECOUPLE OVERNIGHT AS THE RIDGE BUILDS OVER THE TERMINALS. /ISSUED 336 AM CDT WED APR 29 2015/ A PLEASANT AND DRY WEATHER PATTERN WILL PERSIST ACROSS SOUTHEAST TEXAS TODAY AND THURSDAY AS HIGH PRESSURE DRIFTS ACROSS THE STATE.
THIS IS IN RESPONSE TO ISENTROPIC LIFT AND UPPER LEVEL DYNAMICS ASSOCIATED WITH THE UPPER LEVEL CLOSED LOW OVER NORTHERN MISSISSIPPI. HIGH RESOLUTION MODEL GUIDANCE FOR THIS MORNING INDICATES THAT WE WILL HAVE CONTINUED DEVELOPMENT OF NUMEROUS SHOWERS ACROSS OUR NORTHERN AND NORTHEASTERN COUNTIES THROUGH NOON TODAY BEFORE THE CLOSED LOW MOVES EASTWARD AND WEAKENS TO AN OPEN WAVE. THE EASTERN CONUS TROUGH THEN REALLY SHARPENS DURING THE DAY ON THURSDAY AS A VERY STRONG COLD CORE UPPER LOW DIVES SOUTHEASTWARD INTO THE SOUTHERN APPALACHIANS.
UPPER LOW IS OVERHEAD AND MOVING EAST. /39 UPPER LOW PRESSURE OVER THE NORTHERN GULF WILL MOVE EASTWARD TODAY. EXPECT WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS DURING THE DAY BUT COVERAGE SHOULD DIMINISH FROM THE SOUTHWEST THIS AFTERNOON AND EVENING AS THE LOW MOVES EAST.
A DRY LOOKING TROUGH AROUND 500 MB WILL DROP ACROSS TN. TEMPS ARE ON TRACK TO REACH THE LOWER 70S WEST OF THE PLATEAU. THROUGH NORTH FL AND INTO THE ATLANTIC WILL HELP KEEP DEEPER MOISTURE SOUTH/EAST AHEAD OF FAIRLY DEEP UPPER TROUGH. THE MOISTURE IS ON THE SE SIDE OF THE UPPER TROUGH AXIS WHICH EXTENDS NE FROM THE LOWS CENTER. INVERTED TROUGH STRETCHES FROM THE NRN GULF NNE ACROSS NWRN GA. SOME UPPER LEVEL RIDGING WILL GAIN A STRONGHOLD ON THE WEATHER SCENARIO. STILL NO ORGANIZED COLD FRONT TO SPEAK OF.
THE CLOSED LOW HAS NOW SHIFTED EAST OF ALABAMA AND HAS WEAKENED AND BECOME AN OPEN WAVE. THIS IS IN RESPONSE TO ISENTROPIC LIFT AND UPPER LEVEL DYNAMICS ASSOCIATED WITH THE UPPER LEVEL CLOSED LOW OVER NORTHERN MISSISSIPPI. HIGH RESOLUTION MODEL GUIDANCE FOR THIS MORNING INDICATES THAT WE WILL HAVE CONTINUED DEVELOPMENT OF NUMEROUS SHOWERS ACROSS OUR NORTHERN AND NORTHEASTERN COUNTIES THROUGH NOON TODAY BEFORE THE CLOSED LOW MOVES EASTWARD AND WEAKENS TO AN OPEN WAVE. THE EASTERN CONUS TROUGH THEN REALLY SHARPENS DURING THE DAY ON THURSDAY AS A VERY STRONG COLD CORE UPPER LOW DIVES SOUTHEASTWARD INTO THE SOUTHERN APPALACHIANS.
AN UPPER LEVEL RIDGE AXIS WILL MOVE EAST ACROSS THE ROCKIES TODAY AS AN UPPER LEVEL TROUGH EXITS THE EASTERN PACIFIC AND BEGINS TO MOVE ACROSS THE PACIFIC NORTHWEST. A DEVELOPING TROUGH OF LOW PRESSURE ALONG THE LEE OF THE ROCKIES WILL BEGIN TO DEVELOP TODAY AND THE WINDS WILL SHIFT TO THE SOUTHEAST BY LATE DAY. GIVEN THESE WINDS AND SURFACE DEW POINTS FORECAST TO CLIMB INTO THE UPPER 30S TO LOWER 40S BY DAYBREAK THE OVERNIGHT LOWS ARE EXPECTED TO BE MAINLY IN THE LOW TO MID 40S.
1226 PM EDT WED APR 29 2015 LOW PRESSURE EAST OF THE MARITIMES WILL SLOWLY PULL AWAY FROM THE REGION THROUGH TONIGHT. WEAK HIGH PRESSURE WILL BUILD INTO NORTHERN NEW ENGLAND THURSDAY.
701 AM EDT WED APR 29 2015 HIGH PRESSURE WILL WEAKEN TODAY. AN UPPER LEVEL LOW PRESSURE SYSTEM WILL DROP SOUTH ACROSS THE CENTRAL GREAT LAKES LATER TODAY TO THE TENNESSEE VALLEY ON THURSDAY.
WINDS AND SEAS WILL INCREASE ON WEDNESDAY AS LOW PRESSURE MOVES ACROSS THE AREA AND OFFSHORE FLOW DEVELOPS.
WATER VAPOR IMAGERY EARLY THIS MORNING SHOWS A RATHER VIGOROUS MID/UPPER LEVEL DISTURBANCE QUICKLY DIGGING SOUTHWARD ALONG THE EASTERN PERIPHERY OF AN UPPER RIDGE ACROSS WESTERN NORTH AMERICA. ALTHOUGH SURFACE DEWPOINTS ARE ONLY EXPECTED TO BE IN THE LOWER 40S. MUCH COOLER TEMPERATURES.
AN UPPER LEVEL TROUGH WILL MOVE THROUGH WESTERN ESPECIALLY NORTH OF SALEM. AS WELL AS A BIT COOLER TEMPERATURES. ONCE THE UPPER UPPER LEVEL TROUGH MOVES THROUGH.
933 AM EDT WED APR 29 2015 HIGH PRESSURE WILL WEAKEN TODAY. AN UPPER LEVEL LOW PRESSURE SYSTEM WILL DROP SOUTH ACROSS THE CENTRAL GREAT LAKES LATER TODAY TO THE TENNESSEE VALLEY ON THURSDAY.
THEN DRIER AND WARMER OFFSHORE FLOW WILL DEVELOP WEDNESDAY NIGHT AND THURSDAY.
THE LOW PRESSURE AREA WILL PULL AWAY FROM THE AREA LATE IN THE AFTERNOON AND EVENING WITH IMPROVING CONDITIONS EXPECTED FROM SOUTH TO NORTH.
630 AM CDT WED APR 29 2015 UPPER RIDGING WILL CONTINUE TO NOSE EASTWARD ACROSS THE DAKOTAS TODAY.
/ISSUED 241 AM CDT WED APR 29 2015/ UPPER LEVEL RIDGING AND NORTHERLY FLOW ALOFT WILL PREVAIL FOR THE NEXT FEW DAYS IN THE WAKE OF THE UPPER LEVEL LOW THAT MOVED ACROSS YESTERDAY.
730 AM EDT WED APR 29 2015 UPPER LOW PRESSURE OVER THE NORTHERN GULF WILL MOVE EASTWARD TODAY. EXPECT WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS DURING THE DAY BUT COVERAGE SHOULD DIMINISH FROM THE SOUTHWEST THIS AFTERNOON AND EVENING AS THE LOW MOVES EAST.
850mb temperatures warm a few degrees today so expecting another nice mild day with highs generally around 70 to the lower 70s area-wide.
639 AM PDT WED APR 29 2015 Today will be breezy and cooler with afternoon temperatures in the 60s over much of the Inland Northwest.
1040 AM EDT WED APR 29 2015 HIGH PRESSURE AND DRY AIR WILL MOVE EAST TODAY. A POTENT UPPER LOW IS FORECAST TO DROP SOUTH ACROSS THE AREA TONIGHT THROUGH THURSDAY. DRY WEATHER AND WARMER TEMPERATURES WILL ACCOMPANY HIGH PRESSURE FOR THE WEEKEND. NOW HAVE THE HIGHS RANGING THE MID TO UPPER 60S. CLOUDS WILL INCREASE TONIGHT IN ADVANCE OF THE UPPER LOW. SHOWERS ARE EXPECTED TO CONTINUE TO FORM ON THURSDAY UNTIL THE UPPER LOW MAKES ITS WAY ACROSS THE FA TO EASTERN KENTUCKY THURSDAY NIGHT.
WITH TROUGHING TO THE EAST. AND WEAK RIDGING ACROSS THE SOUTHERN AND CENTRAL PLAINS. TEMPERATURES TODAY WILL STRUGGLE INTO THE LOWER 70S AS HIGH PRESSURE MOVES THROUGH. AS MID LEVEL SOUTHWESTERLY FLOW OVERSPREADS THE REGION IN RESPONSE TO BROAD TROUGH OVER THE WESTERN STATES.
626 AM CDT WED APR 29 2015 AN UPPER LEVEL LOW WILL DROP SOUTH INTO FAR EASTERN LAKE SUPERIOR TODAY THEN CONTINUE SOUTH TONIGHT. A RIDGE OF HIGH PRESSURE AT THE SURFACE WILL HELP AND KEEP MOST OF THE NORTHLAND DRY AND MILD TODAY. A STRONGER LAKE BREEZE IS EXPECTED KEEPING AREAS NEAR THE LAKE COOLER.
FRONT HAS MOVED THROUGH THE AREA AND HIGH PRESSURE IS BUILDING IN. A COLD FRONT IN SOUTHEAST OREGON WILL MOVE THROUGH SOUTHWEST IDAHO THIS MORNING AND SHIFT TO OUR SOUTHEAST BY NOON. UPPER LEVEL SUPPORT ACCOMPANYING A TROUGH TO OUR WEST WILL ENHANCE THE POTENTIAL FOR ISOLATED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. SHOWERS WILL DIMINISH LATE TONIGHT AND END BY THURSDAY AS A DRIER W-NW FLOW FOLLOWS THE DEPARTING TROUGH. TEMPERATURES WILL BE ABOUT 5-10 DEGREES COOLER TODAY.
CHATTANOOGA AIRPORT, TN 67 49 69 46 / 80 30 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 65 49 65 44 / 60 20 50 20 OAK RIDGE, TN 66 49 65 44 / 50 20 40 20 TRI CITIES AIRPORT, TN 64 45 61 43 / 60 30 70 50.
947 AM EDT WED APR 29 2015 LOW PRESSURE EAST OF THE MARITIMES WILL SLOWLY PULL AWAY FROM THE REGION THROUGH TONIGHT. WEAK HIGH PRESSURE WILL BUILD INTO NORTHERN NEW ENGLAND THURSDAY.