Severe Thunderstorm Warning 1, NWS Greenville-Spartanburg, SC

092 
WWUS52 KGSP 250826
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
326 AM EST FRI FEB 25 2011

NCC075-113-173-250900-
/O.CON.KGSP.SV.W.0001.000000T0000Z-110225T0900Z/
MACON NC-GRAHAM NC-SWAIN NC-
326 AM EST FRI FEB 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM EST
FOR SWAIN...GRAHAM AND WESTERN MACON COUNTIES...

AT 320 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES NORTH OF FONTANA LAKE TO 10 MILES SOUTH OF
ROBBINSVILLE...OR ALONG A LINE EXTENDING FROM 16 MILES SOUTHWEST OF
GATLINBURG TO ANDREWS...MOVING EAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NANTAHALA LAKE...WESSER...ALMOND...KYLE...RAINBOW SPRINGS...NEWFOUND
GAP...LUADA...BRYSON CITY...ALARKA...SMOKEMONT AND CHEROKEE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND GUSTS PRODUCED BY THIS STORM WILL ENHANCE THE STRONG WINDS
ALREADY OCCURRING ACROSS THE WARNED AREA TO PRODUCE DAMAGE. THE
DAMAGING WIND GUSTS WILL BE ACCOMPANIED BY VERY HEAVY RAIN AND LITTLE
OR NO LIGHTNING. SEEK SHELTER ON THE LOWEST LEVEL OF YOUR HOME OR
OFFICE BUILDING. AVOID ROOMS THAT MAY BE DAMAGED BY FALLING TREES.

&&

LAT...LON 3542 8403 3552 8388 3557 8374 3556 8352
      3567 8333 3567 8329 3569 8326 3568 8321
      3546 8331 3545 8336 3539 8334 3500 8351
      3514 8366 3514 8374 3525 8371 3524 8385
      3521 8392 3523 8400 3533 8404
TIME...MOT...LOC 0825Z 259DEG 47KT 3559 8363 3520 8379

$$

MOORE

500 
WWUS52 KGSP 250853
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
353 AM EST FRI FEB 25 2011

NCC075-113-173-250901-
/O.EXP.KGSP.SV.W.0001.000000T0000Z-110225T0900Z/
MACON NC-GRAHAM NC-SWAIN NC-
353 AM EST FRI FEB 25 2011

...THE SEVERE THUNDERSTORM WARNING FOR SWAIN...GRAHAM AND WESTERN
MACON COUNTIES WILL EXPIRE AT 400 AM EST...

A LINE OF SHOWERS AND THUNDERSTORMS CONTINUES TO WEAKEN AS IT MOVES 
INTO THE MOUNTAINS OF NORTH CAROLINA. ALTHOUGH THE SEVERE 
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 4 AM...THE HIGH 
WIND WARNING WILL REMAIN IN EFFECT UNTIL 6 AM FOR ALL THE MOUNTAINS 
OF NORTH CAROLINA. WIND GUSTS OF 60 MPH ARE POSSIBLE...ESPECIALLY AT 
RIDGETOPS THAT FACE SOUTHWEST...AS A BAND OF SHOWERS MOVES THROUGH 
THE AREA. WIND GUST POTENTIAL SHOULD DECREASE A BIT AROUND SUNRISE 
AS THE SHOWERS MOVE OFF TO THE EAST.

LAT...LON 3542 8403 3552 8388 3557 8374 3556 8352
      3567 8333 3567 8329 3569 8326 3568 8321
      3546 8331 3545 8336 3539 8334 3500 8351
      3514 8366 3514 8374 3525 8371 3524 8385
      3521 8392 3523 8400 3533 8404
TIME...MOT...LOC 0851Z 259DEG 47KT 3565 8322 3526 8338

$$

MOORE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
219 AM EST FRI FEB 25 2011

.SYNOPSIS...
A LOW PRESSURE SYSTEM WILL MOVE NORTHEAST TO THE NEW ENGLAND COAST
BY LATE TODAY AS THE ASSOCIATED COLD FRONT REACHES THE CAROLINA
COAST.  WEAK HIGH PRESSURE WILL RETURN TO THE EASTERN PART OF THE
NATION FOR THE WEEKEND. ANOTHER LOW PRESSURE SYSTEM IS EXPECTED TO
MOVE FROM THE CENTER OF THE NATION TO EASTERN CANADA IN THE EARLY
HALF OF THE WEEK WITH THE ASSOCIATED COLD FRONT CROSSING OUR AREA
LATE MONDAY.

&&

.NEAR TERM /THROUGH TODAY/...
A QUICK UPDATE TO RAISE A HIGH WIND WARNING OVER THE MTNS.
CONVECTIVE LINE WILL ARRIVE BY 2 AM OVER THE SW MTNS OF NC AND SWEEP
QUICKLY EAST. OBSERVATIONS IN ERN TN SHOW VERY STRONG WIND GUSTS
DEVELOPING AHEAD OF THE LINE AND THAT WILL RUN UP INTO THE MTNS IN
THE NEXT FEW MINUTES...OR BY 0730Z...AND SPREAD EAST THROUGH
DAYBREAK AS THE LINE MOVES QUICKLY EAST. EXPECT THE PASSAGE OF THE
LINE TO KNOCK DOWN SEVERAL TREES AND POWER LINES EVEN WITHOUT ANY
THUNDER.

REMAINDER OF PREVIOUS DISCUSSION...
THE H5 SHORTWAVE TROF AND ASSOC COLD FRONT WILL CROSS THE S
APPALACHIANS FRI MRNG. AS MOISTURE INCREASES IN S FLOW...RAIN SHWRS
WILL INCREASE AHEAD OF THE FRONT AND MOVE ACROSS THE AREA FRI MRNG.
EXPECT A QLCS TO DEVELOP AHEAD OF FRONT ALSO WITH LITTLE OR NO
INSTABILITY BUT STRONG SHEAR...SO CANNOT RULE OUT AN ISOLD SVR
STORM. S SFC WINDS WILL INCREASE AS WELL WITH STRONG GUSTS BY
DAYBREAK. BEST CHANCE FOR WIND PROBLEMS WILL BE OVER MTN RIDGES BUT
SHWRS COULD BRING STRONG GUSTS TO THE SFC ANYWHERE FRI MRNG. THE
LAKE WIND ADVSRY WILL CONTINUE THRU FRI ACROSS CWA. A WIND ADVSRY
WILL LIKELY BE NEEDED FRI FOR PART OF THE CWA BUT WILL LET LATER
SHIFTS DECIDE WHERE. FRONT MOVES THRU CWA QUICKLY AND SHOULD BE E OF
AREA BY EARLY AFTN. QPF IS FOR LESS THAN AN INCH ACROSS CWA. HIGHS
WILL BE WELL ABOVE AVG BUT BEGIN TO DROP QUICKLY BY LATE AFTN.

&&

.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...
AS OF 215 PM THU...NW FLOW MOISTURE WILL LINGER BRIEFLY ALONG THE
NRN NC MTNS FRI EVENING...WITH 850 MB TEMPS DIPPING TO BETWEEN ZERO
AND MINUS 5. HOWEVER...THE UPSLOPE MOISTURE APPEARS TOO BRIEF TO
WARRANT ANY POPS AT PRESENT. THE PRES GRADIENT WILL QUICKLY RELAX
OVERNIGHT.

ZONAL FLOW ALOFT IS EXPECTED THROUGH THE FIRST HALF OF THE WEEKEND
AS A DEEP LOW MOVES OVER THE DESERT SW. A LOBE OF LOWER LEVEL RETURN
FLOW MOISTURE SHOULD MISS THE FORECAST AREA TO THE E ON SAT AS
TRANSIENT SFC HIGH PRES TO THE N MIGRATES OFFSHORE. MAX TEMPS SHOULD
BE AROUND NORMAL SAT AFTN.

UPPER LEVEL HEIGHTS WILL BRIEFLY RISE OVER THE E ON SUNDAY AS THE
LOW PRESSURE SYSTEM MOVES THROUGH THE PLAINS. THIS WILL PERMIT
TEMPERATURES TO RISE TO ABOUT 10 DEGREES ABOVE NORMAL BY SUNDAY
AFTN. MID LEVEL MOISTURE WILL RETURN AHEAD OF THE APPROACHING
WAVE...WITH BETTER LOW LEVEL RETURN FLOW MOISTURE DEVELOPING IN AN
IMPROVING SRLY JET LATE SUN THROUGH SUN NIGHT. UPSLOPE MOISTURE
COULD WRING OUT SOME SHOWERS IN AND NEAR THE HIGH TERRAIN AS THIS
SRLY FLOW DEVELOPS. WILL FEATURE MAINLY SLIGHT CHC POPS LATE
SUNDAY...WITH SHOWER CHANCES INCREASING THROUGH SUNDAY NIGHT.

&&

.LONG TERM /MONDAY THROUGH THURSDAY/...
AS OF 215 AM FRIDAY...AS THE COLD FRONT MOVES OFFSHORE FROM THE
CAROLINAS EARLY TUESDAY...CLOUDINESS WILL BE DISSIPATING OVER THE NC
MOUNTAINS WITH DRIER AIR MOVING IN FROM THE WEST UNDER WEAK HIGH
PRESSURE.  DRY WEATHER WILL PREVAIL FROM TUESDAY THROUGH THURSDAY
NIGHT ACROSS THE FORECAST AREA.  FORECAST THICKNESSES AND GUIDANCE
GO FOR TEMPERATURES TWO CATEGORIES ABOVE NORMAL FOR HIGHS TUESDAY
AND A COUPLE DEGREES HIGHER WEDNESDAY.  A WEAK COLD FRONT WILL SAG
SOUTHWARD LATE WEDNESDAY WHILE LEADING AN UPPER TROUGH TO THE EAST
COAST.  COOL HIGH PRESSURE WILL CROSS THE NORTHEAST STATES THURSDAY
WITH SOME COOL AIR WEDGING INTO OUR REGION.  THICKNESSES DROP A BIT
LEADING TO SLIGHTLY COOLER TEMPERATURES FOR HIGHS THURSDAY.

CLOUDINESS STARTS TO INCREASE AT THE END OF THE CURRENT FORECAST
PERIOD...THURSDAY NIGHT. HIGH PRESSURE MOVING EAST OF NEW ENGLAND
AND RETURN MOISTURE COMING UP FROM THE SOUTH ACROSS FLORIDA ALONG
WITH THE NEXT FRONT CROSSING THE PLAINS.

&&

.AVIATION /07Z FRIDAY THROUGH TUESDAY/...
AT KCLT...VFR THROUGH THE EARLY MORNING HOURS WITH A LOW CLOUD
CEILING DEVELOPING AROUND 035 TO 040 BY 08Z AS WARM ADVECTION
STRENGTHENS AHEAD OF A STRONG COLD FRONT. LOW LEVEL WIND SHEAR WILL
BE A CONCERN UNTIL THE FRONT ARRIVES. TCLT RADAR WIND PROFILE SHOWS
SSW WIND AT 55KT AT 3K FEET AGL AND THIS SOUTHWESTERLY LOW LEVEL JET
WILL CONTINUE TO MOVE JUST OFF THE SURFACE ACROSS THE WESTERN
CAROLINAS UNTIL THE TIME THAT THE MAIN CONVECTIVE BAND PASSES
THROUGH. AT THIS TIME...THAT APPEARS TO BE ROUGHLY 12Z TO 15Z.
EXPECT MVFR CLOUDINESS TO DEVELOP JUST AHEAD OF THE CONVECTIVE
BAND...IN TIME FOR THE MORNING PUSH. INSTABILITY IS WEAK SO THUNDER
WILL NOT BE INCLUDED RIGHT NOW. AFTER THE CONVECTIVE PRECIP THREAT
ENDS...EXPECT A RAPID CLEARING TO VFR...BY 17Z AT THE LATEST. AFTER
THAT TIME...DEEP MIXING WILL ALLOW FOR STRONG WIND GUSTS FROM THE
SW...THROUGH MOST OF THE AFTERNOON. A WIND SHIFT TO WNW IS EXPECTED
IN THE LATE AFTERNOON. WINDS SHOULD LOSE GUSTINESS AROUND SUNSET.

ELSEWHERE...SCATTERED LIGHT SHOWERS DEVELOPING ACROSS THE
MTNS/FOOTHILLS SHOULD NOT AFFECT TAFS SIGNIFICANTLY. VISIBILITY IN
MVFR RANGE OVER THE NRN FOOTHILLS AND NW PIEDMONT...AND KHKY...MAY
IMPROVE FOR A FEW HOURS WITH STRONGER WARM ADVECTION.
OTHERWISE...WILL KEEP AN EYE ON PROGRESSION OF CONVECTIVE BAND
ACROSS ERN TN AND INTO THE MTNS. KAVL STANDS THE BEST CHANCE AT
SEEING A VIS RESTRICTION...MVFR...WITH THE BAND OF SHOWERS. WILL
MONITOR ITS PROGRESS AND AMEND OTHER TAFS AS NECESSARY. MVFR CEILING
SEEN ACROSS N GA AT 06Z SHOULD SPREAD EAST ACROSS THE TAF SITES BY
08Z TO 09Z...AND REMAIN THAT WAY UNTIL THE CONVECTIVE BAND
PASSES...WITH A FEW TEMPORARY HOLES IN THE LOW CLOUDS. LOW LEVEL
WIND SHEAR WILL ALSO CONTINUE TO BE A PROBLEM UNTIL THE CONVECTION
ARRIVES. AS WITH KCLT...EXPECT A RAPID CLEARING AFTER CONVECTIVE
PRECIP MOVES EAST. WHEN THAT HAPPENS...EXPECT STRONG AND GUSTY SW
WIND. IN THE LATE AFTERNOON WINDS VEER TO THE WEST NORTHWEST.

OUTLOOK...HIGH PRES AND VFR CONDITIONS SATURDAY AND SUNDAY. ANOTHER
COLD FRONT WILL APPROACH FROM THE WEST MONDAY.

&&

.FIRE WEATHER...
W AND NW WINDS ARE EXPECTED TO GUST BETWEEN 30 AND 40 MPH FRI
AFTERNOON. RH VALUES ARE EXPECTED TO DROP TO AROUND 30 PERCENT EAST
OF THE MOUNTAINS FRI AFTERNOON AS DRIER AIR SPILLS IN...WHILE
DOWNSLOPE WARMING KEEPS TEMPERATURES WELL ABOVE NORMAL. SINCE MOST
OF WESTERN NORTH CAROLINA HAD WETTING RAINS BETWEEN ONE QUARTER AND
ONE HALF INCH TODAY...A FIRE DANGER STATEMENT IS NOT NEEDED AT THIS
TIME. HOWEVER...PIEDMONT LOCATIONS SAW A BIT LESS RAINFALL...AND
BRIEFLY HEIGHTENED FIRE DANGER WILL BE POSSIBLE WHEN THE GUSTY WINDS
START UP EARLY FRIDAY AFTERNOON.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...HIGH WIND WARNING UNTIL 6 AM EST EARLY THIS MORNING FOR GAZ010.
     LAKE WIND ADVISORY FROM 6 AM THIS MORNING TO 6 PM EST THIS
     EVENING FOR GAZ010.
     LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR GAZ017-018-
     026-028-029.
NC...HIGH WIND WARNING UNTIL 6 AM EST EARLY THIS MORNING FOR NCZ033-
     048>053-058-059-062>065-501-503-505-507-509.
     LAKE WIND ADVISORY FROM 6 AM THIS MORNING TO 6 PM EST THIS
     EVENING FOR NCZ033-048>053-058-059-062>065-501-503-505-
     507-509.
     LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR NCZ035>037-
     056-057-068>072-082-502-504-506-508-510.
SC...LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR SCZ001>014-
     019.

&&

SYNOPSIS...TJB
NEAR TERM...JAT/RB
SHORT TERM...HG
LONG TERM...CSH
AVIATION...PM
FIRE WEATHER...

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
312 PM EST THU FEB 24 2011

NCZ033-048>053-058-059-062>065-252015-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
312 PM EST THU FEB 24 2011

...LAKE WIND ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM EST
FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

IN ADDITION TO THE GENERALLY GUSTY WINDS ACROSS THE NORTH CAROLINA
MOUNTAINS ON FRIDAY...A LINE OF SHOWERS WITH EMBEDDED
THUNDERSTORMS WILL ALSO CROSS THE MOUNTAINS STARTING AROUND
DAYBREAK. THE HEAVIER SHOWERS AND STORMS COULD CHANNEL LOCALLY
STRONGER WINDS TO THE GROUND...PRODUCING ISOLATED WIND DAMAGE FROM
DAYBREAK THROUGH MID MORNING.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-501>510-
SCZ001>014-019-252015-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-
UNION NC-CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-
GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
312 PM EST THU FEB 24 2011

...LAKE WIND ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM EST
FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

IN ADDITION TO THE GENERALLY GUSTY WINDS ACROSS THE REGION ON
FRIDAY...A LINE OF SHOWERS WITH EMBEDDED THUNDERSTORMS WILL LIKELY
ALSO CROSS THE AREA FRIDAY MORNING. THE HEAVIER SHOWERS AND STORMS
COULD CHANNEL LOCALLY STRONGER WINDS TO THE GROUND...PRODUCING
ISOLATED WIND DAMAGE DURING THE MORNING HOURS.

.SPOTTER INFORMATION STATEMENT...

NONE.

HG