Severe Thunderstorm Warning 115, NWS Greenville-Spartanburg, SC

737 
WWUS52 KGSP 261913
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
313 PM EDT THU APR 26 2012

NCC089-262000-
/O.CON.KGSP.SV.W.0115.000000T0000Z-120426T2000Z/
HENDERSON NC-
313 PM EDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HENDERSON
COUNTY UNTIL 400 PM EDT...

AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR MOUNTAIN HOME...OR 7 MILES NORTHWEST OF
HENDERSONVILLE...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...  
  THE NORTH SIDE OF HENDERSONVILLE.
  DANA.
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW DOWN SCATTERED TREES AND POWER LINES. SEEK
SHELTER INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3544 8263 3544 8255 3542 8254 3544 8253
      3545 8246 3540 8227 3531 8231 3518 8244
      3517 8254 3525 8261 3530 8262 3542 8274
      3545 8271 3546 8267
TIME...MOT...LOC 1913Z 292DEG 24KT 3537 8251

$$

MCAVOY

070 
WWUS52 KGSP 261937
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
337 PM EDT THU APR 26 2012

NCC089-262000-
/O.CON.KGSP.SV.W.0115.000000T0000Z-120426T2000Z/
HENDERSON NC-
337 PM EDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HENDERSON
COUNTY UNTIL 400 PM EDT...

AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR AVERY CREEK...OR 9 MILES SOUTH OF DOWNTOWN
ASHEVILLE...MOVING SOUTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...  
  EDNEYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW DOWN SCATTERED TREES AND POWER LINES. SEEK
SHELTER INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3544 8263 3544 8255 3542 8254 3544 8253
      3545 8246 3540 8227 3531 8231 3518 8244
      3517 8254 3525 8261 3530 8262 3542 8274
      3545 8271 3546 8267
TIME...MOT...LOC 1937Z 300DEG 25KT 3544 8249

$$

MCAVOY

015 
WWUS52 KGSP 262003
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
403 PM EDT THU APR 26 2012

NCC089-262012-
/O.EXP.KGSP.SV.W.0115.000000T0000Z-120426T2000Z/
HENDERSON NC-
403 PM EDT THU APR 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR HENDERSON COUNTY HAS
EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LEVELS.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS 
THUNDERSTORM. IN FACT...LOCALIZED URBAN FLOOD MAY START TO DEVELOP 
AROUND HENDERSONVILLE AND FLAT ROCK IF THE HEAVY RAIN CONTINUES.

LAT...LON 3544 8263 3544 8255 3542 8254 3544 8253
      3545 8246 3540 8227 3531 8231 3518 8244
      3517 8254 3525 8261 3530 8262 3542 8274
      3545 8271 3546 8267
TIME...MOT...LOC 1937Z 300DEG 25KT 3544 8249

$$

MCAVOY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
210 PM EDT THU APR 26 2012

.SYNOPSIS...
A COLD FRONT WILL APPROACH THE AREA FROM THE NORTH RESULTING IN
UNSETTLED WEATHER. THIS COLD FRONT IS EXPECTED TO BECOME
STATIONARY FROM WEST TO EAST ACROSS OUR AREA FRIDAY AND SATURDAY.
THE FRONT WILL MOVE OFF TO THE SOUTH ON SUNDAY AS A CANADIAN HIGH
BUILDS OVER THE REGION. THEN THE HIGH WILL LINGER THROUGH THE EARLY
PART OF NEXT WEEK.

&&

.NEAR TERM /THROUGH FRIDAY/...
AS OF 145 PM...ELEVATED CONVECTION ALREADY FIRING ALONG A LINGERING
BOUNDARY. ONE CLUSTER ENTERING THE CENTRAL NC MTNS...AND ANOTHER
ENTERING THE SOUTHERN CHARLOTTE METRO AREA. THERE IS ENUF INSTBY FOR
STORMS TO PRODUCE LARGE HAIL...BUT WIND THREAT PROBABLY SUBDUED DUE
TO THE COOL BL.

MEANWHILE...ATMOS CONTINUES TO DESTABILIZE ACRS KY/TN AHEAD OF AN
APPROACHING COLD FRONT. GUIDANCE IS MIXED ON HOW QUICKLY WE CAN
DEVELOP SBCAPE AND FURTHER DEVELOPMENT AWAY FROM THE BNDRY THIS
AFTN. I HAVE POPS GRADUALLY RAMPING UP FROM WEST TO EAST...PEAKING
EARLY EVENING THEN DIMINISHING OVERNIGHT.

THE SPC MESOANALYSIS PAGE SHOWS EFFECTIVE SHEAR OF 40-50 KTS WITH
MUCAPES 2000-3000+ J/KG ACRS KY/TN. AND THE RUC PROGS THIS
ENVIRONMENT TO PROPAGATE INTO THE AREA. THE BIG QUESTION IS HOW THE
BL WILL EVOLVE. THE LATEST FCST SNDGS SHOW SLOW EROSION OF COLD POOL
AND 100+ J/KG OF SBCIN. THE NEW DAY 1 CONVECTIVE OUTLOOK HAS THE
MTNS AND UPPER SAVANNAH VALLEY IN A SLIGHT...BUT NOT TO THE EAST.
HIGH RES MODELS DO NOT SHOW AS MUCH ORGANIZATION WITH THIS
AFTN/EVENINGS CONVECTION. SO HAIL MAY REMAIN THE MAIN THREAT...WITH
SOME WIND THREAT IN THE MTNS.

TEMPS WILL BE ABOVE NORMAL OVERNIGHT UNDER THE DEBRIS CLOUDINESS.

FRIDAY...MODELS CONTINUE THEIR TREND OF A MORE SOUTHERN PUSH OF THE
COLD FRONT. THEY ALSO AGREE ON DECENT INSTBY ALONG/SOUTH OF THE
BNDRY AS IT STARTS TO LIFT NORTH AS A WARM FRONT DURING THE AFTN.
TOOK A MODEL BLEND FOR POPS. THIS HIGHLIGHTS THE NE GA AND UPSTATE
ZONES. SPC DAY 2 OUTLOOK HAS A SEE TEXT 5% FOR THOSE AREAS. SHEAR
WILL BE WEAKER...BUT ANOTHER SHORTWAVE WILL RIPPLE THRU QUASI-ZONAL
FLOW DURING PEAK HEATING...WITH FCST SNDGS SHOWING LESS CIN THAN
TODAY.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
AS OF 205 PM THURSDAY...A WEAK UPPER RIDGING WILL BUILD INTO THE
SOUTHEAST U.S. FRI NIGHT-SAT...THEN WEAKENS SLIGHTLY SAT NIGHT
BEFORE CONTINUING TO BUILD OVER THE AREA SUN. THE SFC BOUNDARY WILL
PUSH N AS A WARM FRONT FRI NIGHT-EARLY SAT WITH BEST FORCING N OF
THE CWA. WE KEPT SLIGHT CHC POPS OVER MAINLY THE MTNS AND N ZONES
THRU SAT. AS A SFC RIDGE BUILDS INTO THE AREA FROM THE NE WITH SE
SFC FLOW SETTING UP. UPSLOPE FORCING SHOULD BE ENOUGH TO MAINTAIN
SLIGHT CHC POPS THRU THE DAY SUN...MAINLY OVER THE MTNS. EXPECT
TEMPS ABOVE AVG SAT AND SUN WITH COLDER AIR PUSHING IN FROM THE NE
DURING THE DAY SUN TO KEEP TEMPS BELOW AVG IN THE FAR NE CWA IN THE
AFTN.

&&

.LONG TERM /SUNDAY NIGHT THROUGH WEDNESDAY/...
AS OF 205 PM THURSDAY...HEIGHTS RISE SUN NIGHT-MON AS UPPER TROF
MOVES OFF THE NE COAST AND UPPER RIDGE BUILDS INTO THE SE US. COLD
AIR DAMMING CONTINUES TO DEVELOP SUN NIGHT AND SETTLES OVER THE AREA
MON. STILL EXPECT ENOUGH LOW LVL MOISTURE AND FORCING FOR SLIGHT CHC
POPS ACROSS THE AREA. WEDGE WEAKENS TUE AND SFC BOUNDARY MOVES N OF
THE AREA AND STAYS N THRU THE PERIOD. THIS PUTS CWA BACK IN THE WARM
SECTOR SO WITH MOIST S FLOW DEVELOPING WE HELD ON TO MENTION OF
SLIGHT CHC OF MAINLY AFTN SHWRS AND TSTMS TUE-WED DEVELOPING MOIST
SLY FLOW AND DIURNAL INSTABILITY. TEMPS WILL BE BELOW AVG MON...THEN
BACK ABOVE AVG TUE-THU.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
AT KCLT...MAIN CONCERN NEXT COUPLE OF HOURS WILL BE A SMALL LINE OF
CONVECTION TRACKING SOUTH OF THE TERMINAL. NOT EXPECTING A DIRECT
IMPACT ATTM...BUT THE SUBTLE BNDRY THIS ACTIVITY IS FIRING ALONG IS
SLOWLY DRIFTING NWD. SO ADDITIONAL DEVELOPMENT TO THE WEST MAY
AFFECT KCLT. OTHERWISE...EXPECT VFR WITH GUSTY SW WINDS THIS AFTN
AFTN. THERE MAY BE ANOTHER ROUND OF CONVECTION THIS EVENING...AS A
COLD FRONT WILL PUSH THRU THE AREA OVERNIGHT. CONFIDENCE IS TOO LOW
THIS TIME...BUT MOST LIKELY TIME OF IMPACT SHUD BE IN THE 00Z TO 06Z
TIME FRAME. WINDS WIL SHIFT NW BEHIND THE FRONT...THEN NE FRIDAY
MORNING AND REMAIN LIGHT. DEBRIS CLOUDINESS ASSOCIATED WITH THE
CONVECTION SHUD BE VFR.

ELSEWHERE...A CLUSTER OF STORMS ARE MOVING INTO THE CENTRAL NC MTNS
ATTM...AND WILL BE VCTS AT KAVL FOR NEXT COUPLE OF HOURS. CONVECTION
MAY START TO DEVELOP LATER THIS AFTN ACRS THE REMAINDER OF THE
AREA...SO VCTS WILL BE CARRIED. ANOTHER ROUND OF CONVECTION IS
EXPECTED TO AFFECT THE REGION LATE THIS AFTN THRU THE EVENING...AS A
COLD FRONT PUSHES THRU FROM THE NORTHWEST. CONVECTION SHUD WANE
AFTER 06Z AND WINDS WILL SHIFT TO N/NW BEHIND THE FRONT. DEBRIS
CLOUDINESS SHUD BE VFR.

OUTLOOK...A COLD FRONT WILL LINGER INVOF THE FORECAST AREA THRU
FRIDAY NIGHT. MAINLY PM SHOWERS/THUNDERSTORMS AND MORE WIDESPREAD
RESTRICTIONS WILL BE POSSIBLE FRI AFTN AND OVERNIGHT. THE FRONT
LIFTS NORTH SATURDAY...BUT THEN DROPS BACK IN SUNDAY. SO PERIODS OF
RESTRICTIONS IN CLOUDS/PRECIP EXPECTED THRU THE WEEKEND.

AN EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLE SHOWING THE
PERCENTAGE OF GUIDANCE MEMBERS AGREEING WITH THE SCHEDULED ISSUANCE
CATEGORY IS AVAILABLE AT FOLLOWING LINK (USE LOWER CASE)...

WWW.WEATHER.GOV/GSP/AVIATION/TABLES.HTM

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...PAT
NEAR TERM...ARK
SHORT TERM...RB
LONG TERM...RB
AVIATION...ARK

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1149 AM EDT THU APR 26 2012

NCZ033-048>053-058-059-062>065-501-503-505-507-509-271600-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS-
RUTHERFORD MOUNTAINS-POLK MOUNTAINS-
1149 AM EDT THU APR 26 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A COLD FRONT MAY BRING ANOTHER ROUND OF SEVERE WEATHER TO THE
NORTH CAROLINA MOUNTAINS LATE THIS AFTERNOON AND EVENING. THE
ENVIRONMENT ALONG AND AHEAD OF THE FRONT WILL SUPPORT CLUSTERS OR
LINES OF THUNDERSTORMS TO DEVELOP ACROSS EASTERN KENTUCKY AND
TENNESSEE. THESE STORMS WILL LIKELY TRACK EAST TO SOUTHEAST
REACHING THE NORTH CAROLINA MOUNTAINS LATE THIS AFTERNOON AND
EVENING. DAMAGING WIND GUSTS AND LARGE HAIL WILL BE POSSIBLE WITH
THESE STORMS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-
506-508-510-SCZ001>014-019-271600-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-
UNION NC-GREATER CALDWELL-GREATER BURKE-EASTERN MCDOWELL-
GREATER RUTHERFORD-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
1149 AM EDT THU APR 26 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE
FOOTHILLS AND PIEDMONT LATE THIS AFTERNOON AND EVENING. A FEW OF
THESE STORMS COULD PRODUCE QUARTER SIZED HAIL AND DAMAGING WIND
GUSTS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

ARK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1101 AM EDT THU APR 26 2012

GAZ026-028-029-SCZ010-011-019-261545-
ABBEVILLE-ANDERSON-ELBERT-FRANKLIN-GREENWOOD-HART-
1101 AM EDT THU APR 26 2012

...STRONG THUNDERSTORMS WILL AFFECT ABBEVILLE...ELBERT...FRANKLIN...
GREENWOOD...HART AND SOUTHERN ANDERSON COUNTIES THROUGH 1145 AM
EDT...

AT 1100 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HONEA PATH TO
CARNESVILLE...MOVING SOUTHEAST AT 40 MPH.

THESE THUNDERSTORMS HAVE A HISTORY OF PRODUCING WIND GUSTS OF 30 TO
40 MPH AS WELL AS PEA TO DIME SIZE HAIL. FREQUENT LIGHTNING WILL
ALSO OCCUR WITH THE PASSAGE OF THE LINE. TAKE SHELTER INDOORS AS
THIS LINE APPROACHES YOUR AREA.

LAT...LON 3401 8224 3397 8231 3406 8234 3407 8248
      3401 8259 3396 8256 3398 8286 3417 8311
      3423 8308 3426 8313 3423 8317 3426 8331
      3422 8335 3439 8339 3441 8339 3450 8233
      3433 8217 3420 8192 3412 8188 3395 8202

HG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1105 AM EDT THU APR 26 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1103 AM     HAIL             FAIR PLAY               34.51N 82.99W
04/26/2012  E0.50 INCH       OCONEE             SC   TRAINED SPOTTER

&&

LG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1115 AM EDT THU APR 26 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0854 AM     TSTM WND DMG     1 W OLD FORT            35.63N 82.19W
04/26/2012                   MCDOWELL           NC   FIRE DEPT/RESCUE

            ONE TREE DOWN ON HIGHWAY 80

&&

LG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1141 AM EDT THU APR 26 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0854 AM     TSTM WND DMG     2 SSW OLD FORT          35.60N 82.19W
04/26/2012                   MCDOWELL           NC   FIRE DEPT/RESCUE

            POWER POLE DOWN SSW OF OLD FORT

&&

LG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
209 PM EDT THU APR 26 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     HAIL             5 ESE YORK              34.96N 81.15W
04/26/2012  E1.00 INCH       YORK               SC   AMATEUR RADIO

            PEA TO QUARTER SIZE HAIL

&&

LGL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
219 PM EDT THU APR 26 2012

NCZ052-261900-
HAYWOOD-
219 PM EDT THU APR 26 2012

...STRONG THUNDERSTORMS WILL CONTINUE TO AFFECT HAYWOOD COUNTY
THROUGH 300 PM EDT...

AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORMS 7 MILES SOUTHWEST OF WATERVILLE...OR 17 MILES
NORTHWEST OF WAYNESVILLE...MOVING SOUTHEAST AT 50 MPH.

PEOPLE IN HAYWOOD COUNTY...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH
THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE.

LAT...LON 3580 8297 3575 8296 3574 8292 3562 8285
      3563 8282 3557 8276 3547 8280 3541 8274
      3532 8296 3553 8318 3557 8316 3565 8320
      3567 8318 3570 8323 3573 8321 3577 8315
      3579 8303 3578 8299

CSH