Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 111, NWS Greenville-Spartanburg, SC

April 26, 2012Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 26, 2012, 9:41 AM EDT for Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina. It was in force for 64 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 26, 2012, 9:41 AM EDT (13:41 UTC)
Expired
Apr 26, 2012, 10:45 AM EDT
In force
64 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Habersham County, GA, Rabun County, GA, Stephens County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 120 km from the middle of the area, began a volume at 13:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 26, 9:46 AM EDTHAIL 0.755 Wnw Clayton, GA
Apr 26, 10:00 AM EDTHAIL 0.75Clayton, GACOUNTY 911 CALL CENTER REPORTS DIME SIZE HAIL.
Apr 26, 10:30 AM EDTHAIL 1Tallulah Falls, GATALLULAH FALLS POST OFFICE REPORTED NICKEL TO QUARTER SIZED HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 49 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 26, 8:10 AM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 1.7 hours before the alert went out and 318 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2012-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 824 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2012-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 317 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
824 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
317 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

736 
WUUS52 KGSP 261341
SVRGSP
GAC137-241-257-SCC073-261445-
/O.NEW.KGSP.SV.W.0111.120426T1341Z-120426T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
941 AM EDT THU APR 26 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HABERSHAM COUNTY IN NORTHEAST GEORGIA...
  RABUN COUNTY IN NORTHEAST GEORGIA...
  NORTHERN STEPHENS COUNTY IN NORTHEAST GEORGIA...
  WESTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 1045 AM EDT

* AT 941 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 5 MILES EAST OF DILLARD TO
  HIAWASSEE...AND MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  PINE MOUNTAIN AND MOUNTAIN CITY.
  BATESVILLE AND LAKE BURTON.
  CLAYTON.
  DEMOREST...CLARKESVILLE AND NACOOHE LAKE.
  CORNELIA...BALDWIN...LAKE RABUN AND LAKEMONT.
  TURNERVILLE AND TALLULAH FALLS.
  TOCCOA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3482 8366 3489 8366 3494 8360 3495 8356
      3499 8356 3500 8311 3502 8303 3462 8310
      3448 8349 3449 8354 3443 8362 3450 8367
      3454 8362 3465 8367 3476 8363 3481 8368
TIME...MOT...LOC 1341Z 290DEG 31KT 3498 8326 3491 8369

$$

HG
3 follow-up statements
178 
WWUS52 KGSP 261358
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
958 AM EDT THU APR 26 2012

GAC137-241-257-SCC073-261445-
/O.CON.KGSP.SV.W.0111.000000T0000Z-120426T1445Z/
STEPHENS GA-RABUN GA-HABERSHAM GA-OCONEE SC-
958 AM EDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
OCONEE...HABERSHAM...RABUN AND NORTHERN STEPHENS COUNTIES UNTIL 1045
AM EDT...

AT 959 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM SALEM TO LAKE BURTON...MOVING
SOUTHEAST AT 40 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  NACOOHE LAKE.
  DEMOREST...CLARKESVILLE...BALDWIN AND LAKE RABUN.
  TURNERVILLE...CORNELIA AND TALLULAH FALLS.
  LONG CREEK.
  TOCCOA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3482 8366 3489 8366 3494 8360 3495 8356
      3499 8356 3500 8311 3502 8303 3462 8310
      3448 8349 3449 8354 3443 8362 3450 8367
      3454 8362 3465 8367 3476 8363 3481 8368
TIME...MOT...LOC 1359Z 293DEG 35KT 3487 8295 3486 8359

$$

HG
658 
WWUS52 KGSP 261433
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1033 AM EDT THU APR 26 2012

GAC241-261442-
/O.CAN.KGSP.SV.W.0111.000000T0000Z-120426T1445Z/
RABUN GA-
1033 AM EDT THU APR 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR RABUN COUNTY IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED SOUTHEAST OF 
THE RABUN AND HABERSHAM COUNTY BORDER. THE WARNING FOR RABUN COUNTY 
HAS BEEN CANCELLED.

LAT...LON 3454 8362 3465 8367 3473 8363 3479 8366
      3480 8357 3473 8352 3472 8348 3475 8343
      3471 8335 3481 8331 3481 8306 3462 8310
      3448 8347 3449 8354 3443 8363 3450 8367
TIME...MOT...LOC 1432Z 290DEG 33KT 3472 8311 3468 8343

$$

GAC137-257-SCC073-261445-
/O.CON.KGSP.SV.W.0111.000000T0000Z-120426T1445Z/
STEPHENS GA-HABERSHAM GA-OCONEE SC-
1033 AM EDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
OCONEE...HABERSHAM AND NORTHERN STEPHENS COUNTIES UNTIL 1045 AM
EDT...

AT 1032 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES SOUTHEAST OF LONG CREEK 
TO TURNERVILLE...MOVING SOUTHEAST AT 40 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  TOCCOA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3454 8362 3465 8367 3473 8363 3479 8366
      3480 8357 3473 8352 3472 8348 3475 8343
      3471 8335 3481 8331 3481 8306 3462 8310
      3448 8347 3449 8354 3443 8363 3450 8367
TIME...MOT...LOC 1432Z 290DEG 33KT 3472 8311 3468 8343

$$

HG
441 
WWUS52 KGSP 261445
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1045 AM EDT THU APR 26 2012

GAC137-257-SCC073-261455-
/O.EXP.KGSP.SV.W.0111.000000T0000Z-120426T1445Z/
STEPHENS GA-HABERSHAM GA-OCONEE SC-
1045 AM EDT THU APR 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL OCONEE...
HABERSHAM AND NORTHERN STEPHENS COUNTIES HAS EXPIRED...

AT 1045 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE PREVIOUSLY SEVERE THUNDERSTORMS HAD WEAKENED BELOW SEVERE 
LIMITS.

LAT...LON 3454 8362 3465 8367 3473 8363 3479 8366
      3480 8357 3473 8352 3472 8348 3475 8343
      3471 8335 3481 8331 3481 8306 3462 8310
      3448 8347 3449 8354 3443 8363 3450 8367
TIME...MOT...LOC 1445Z 290DEG 33KT 3468 8297 3464 8329

$$

HG

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 26, 8:26 AM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Apr 26, 8:26 AM EDT, 1 hour 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
826 AM EDT THU APR 26 2012

.SYNOPSIS...
A COLD FRONT WILL APPROACH THE AREA FROM THE NORTH RESULTING IN
UNSETTLED WEATHER TODAY. 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 SUNDAY AS CANADIAN HIGH BUILDS
OVER THE REGION. THEN THE HIGH WILL LINGER THROUGH EARLY PART OF
NEXT WEEK.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 815 AM...THE BOW ECHO MCS IS SLOW TO WEAKEN AS IT ENTERS THE
SOUTHERN APPALACHIANS. HAVE COORDINATED WITH SPC AND ISSUED A SEVERE
THUNDERSTORM WATCH ALL THE MTNS AND ADJACENT FOOTHILLS (EXCEPT
GREENVILLE COUNTY) UNTIL 17Z (1 PM). THE MAIN THREAT IS EXPECTED TO
BE WIND...BUT THE STORMS HAVE CONTINUED TO PRODUCE LARGE HAIL AS
WELL.

AS OF 7 AM...A WELL ORGANIZED BOW ECHO WILL SWEEP INTO THE WESTERN
NC MTNS AROUND 8AM AND WILL REMAIN UNTIL 10AM. THIS LINE WILL BRING
A RISK OF DAMAGING WINDS AND HAIL...SPS HAS BEEN ISSUED. I WILL RAMP
UP POPS AND MENTION SVR TSRA IN THE FORECAST. ELSEWHERE...WINDS
CONTINUE TO REMAIN ABOVE GUIDANCE...I HAVE INCREASED EARLY MORNING
WINDS SOUTH OF THE WARM FRONT. NORTH OF THE FRONT...I WILL ADD THE
MENTION OF FOG.

AS OF 4 AM...THE SFC WARM FRONT WAS LOCATED GENERALLY ACROSS THE NRN
MTNS EAST ALONG THE I-40 CORRIDOR. THE FRONT IS EXPECTED TO MOVE
NORTH OF THE CWA BY SUNRISE. OBS SOUTH OF THE FRONT SHOW VERY MILD
TEMPERATURES...IN THE U50S ACROSS THE MTNS VALLEYS TO MID TO U60S
EAST. THESE TEMPERATURES MAY COOL A COUPLE OF DEGREES BEFORE
SUNRISE...MAINLY DUE TO DECREASING MID TO HIGH CLOUD COVER. A FEW
SPOTS WITH THE MTN VALLEYS COULD SEE FOG EARLY THIS MORNING.
OTHERWISE...MOST SITES WILL SEE SW WINDS GRADUALLY STRENGTHEN
THROUGH SUNRISE...MARGINAL GUSTS POSSIBLE ACROSS NE GA AND SC EAST
OF I-85.

A MCS WAS OVER WESTERN KY AND TRACKING SE AT 8Z...IF THE MCS
SURVIVES...IT WOULD REACH THE EXTREME WESTERN NC MTNS BETWEEN 13Z TO
14Z. I WILL KEEP POPS LOW THROUGH SUNRISE...THEN BEGIN TO INCREASE
POPS TO CHC ACROSS THE MTNS FOR SHRA/TSRA BY 14Z. BY MID
MORNING...THE CENTER OF THE CLIPPER IS FORECAST TO REACH THE NRN
OHIO RIVER VALLEY AS HIGH PRESSURE REMAINS ACROSS FL. THE PRESSURE
GRADIENT SHOULD RANGE BETWEEN 4 TO 6 MBS BY MID MORNING...RELAXING A
MB OR TWO DURING THE AFTERNOON. MIXING TO 4 TO 5 KFT SHOULD RESULT
IN GUSTY SW WINDS FROM 15Z THROUGH SUNSET...GUSTING TO 20 TO 25
KTS...A LITTLE STRONGER OVER THE SC UPSTATE. HIGH TEMPS ARE FORECAST
TO RANGE FROM THE MID 70S ACROSS THE MTN VALLEYS TO LOW TO MID 80S
EAST.

ANY CONVECTION SHOULD REMAIN ACROSS THE NC MTNS THROUGH MID DAY.
HOWEVER...THE COLD FRONT ASSOCIATED WITH THE CLIPPER IS FORECAST TO
SWEEP ACROSS THE SOUTHERN APPALACHIANS LATE THIS AFTERNOON. THROUGH
THE EVENING HOURS...THE SW TO NE FRONT MAY PUSH EAST OVER THE
FOOTHILLS AND PIEDMONT. FORECAST SOUNDINGS ACROSS THE CWA THIS
MORNING INDICATE A SIGNIFICANT H8 INVERSION. THIS INVERSION SHOULD
KEEP THE FOOTHILLS AND PIEDMONT CAPPED THROUGH MUCH OF THE DAY.
ACROSS THE MTNS...THE VALUES OF CIN ASSOCIATED WITH THE INVERSION IS
LESS...AND THE POTENTIAL FOR UPSTREAM CONVECTION TRACKING ACROSS THE
MTNS IS CERTAINLY POSSIBLE. I WILL KEEP CHC POPS OVER THE MTNS AND
SCHC OR LESS POPS EAST THROUGH 20Z. INTO THE EARLY EVENING
HOURS...THE APPROACH OF THE COLD FRONT WILL WEAKEN THE INVERSION AND
CONVECTION SHOULD GRADUALLY DEVELOP ALONG AND AHEAD OF THE FRONT. I
WILL INCREASE POPS TO LIKELY ACROSS THE TN BORDER COUNTIES AND
INDICATE SCT POPS EAST. FORECAST SOUNDINGS ACROSS THE MTNS INDICATE
THAT LLVL HELICITY WILL INCREASE TO AROUND 200 M2/S2...EHI ABOVE
2...AND SWEAT CLOSE TO 400. THE SHEAR COMBINED WITH SFC BASED CAPES
AROUND 2K J/KG AND WBZ AROUND 7.5 KFT SHOULD FAVOR THE DEVELOPMENT
OF SVR TS...ESPECIALLY ALONG THE TN LINE. SPC OUTLOOKS THIS AREA
WITH A SLIGHT RISK...HIGHLIGHTING THE POSSIBILITY OF SVR HAIL AND
WIND. WE WILL CONTINUE TO MENTION THE THREAT OF SVR TSRA ACROSS THE
NC MTNS IN THE HWO.

TONIGHT...CONVECTION WILL GRADUALLY ASHE OUT AROUND
MIDNIGHT...LIKELY LEAVING ISO SHRA AND TSRA NEAR THE GA/SC/NC
INTERSECTION INTO THE EARLY MORNING HOURS. NAM AND GFS INDICATE THAT
COOLER THICKNESSES WILL SLOWLY PUSH SOUTH ACROSS THE REGION
OVERNIGHT. USING A BLEND OF MOS...LOW TEMPERATURES ARE EXPECTED TO
RANGE FROM THE L50S ACROSS THE MTNS TO NEAR 60 ACROSS THE UPPER
SAVANNAH RIVER VALLEY.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
AS OF 330 AM THURSDAY...THE SHORT TERM FORECAST PICKS UP AT 12Z ON
FRIDAY WITH THE EASTERN CONUS UPPER TROF SLOWLY LIFTING NE AND THE
SOUTHERN STREAM BECOMES FAIRLY ZONAL. A WEAK UPPER RIDGING WILL
BUILD INTO THE SOUTHEAST U.S. SATURDAY AND ANOTHER UPPER TROF OVER
QUEBEC DIGS SOUTH BY EARLY SUNDAY.

AT THE SURFACE...A LOW PRESSURE WILL MOVE OFF THE NEW ENGLAND COAST
THURSDAY NIGHT/EARLY FRIDAY...AND DRAG A COLD FRONT SOUTHWARD INTO
OUR AREA. THE LATEST MODELS CONTINUE TO INDICATE THAT THE FRONT
BECOMES STATIONARY INVOF THE SOUTHERN EDGE OF THE CWA BY 12Z FRIDAY.
THEN THE FRONT WILL LIFT BACK NORTHWARD BY FRIDAY AFTERNOON. THE
LATEST MODEL SOUNDINGS HAVE TRENDED WEAKER WIND SHEAR AND LESS CAPE
VALUES THAN THE PREVIOUS RUNS. NEVERTHELESS...WITH SOME DEGREE OF
CONVERGENCE AND WEAK DIURNAL INSTABILITY...WE COULD SEE A
DEVELOPMENT OF SHOWERS AND THUNDERSTORMS ALONG THE FRONTAL BOUNDARY.
A MODEL BLEND FOR POPS RESULTS IN SOLID CHANCE POP WORKING FROM SW
TO NE DURING THE DAY AND INTO FRIDAY EVENING. THE FRONT WILL LIFT
NORTH OF THE AREA SATURDAY AS THE SUBTROPICAL HIGH BUILDS OVER THE
SOUTHEAST U.S. THE FRONT WILL REMAIN JUST TO OUR NORTH KEEPING OUR
WEATHER MOSTLY DRY AND WARMER TEMPS.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
AS OF 230 AM THURSDAY...THE MEDIUM RANGE FORECAST PICKS UP AT 12Z ON
SUNDAY WITH WEAK UPPER RIDGING OVER THE CAROLINAS AND AN UPPER TROF
PERSISTING OVER THE NORTHEASTERN STATES. HEIGHTS BEGIN TO RISE
MONDAY AS THE UPPER TROF ROTATES OFF THE NEW ENGLAND COAST AND UPPER
RIDGING BUILDS INTO THE SOUTHEAST U.S. BY EARLY NEXT WEEK.

AT THE SURFACE...BOTH THE HPC AND THE GFS INDICATE THAT CANADIAN
SURFACE HIGH OVER THE GREAT LAKES AND NORTHEAST STATES WILL PUSH A
BACKDOOR COLD FRONT SOUTH ACROSS OUR FORECAST AREA ON SUNDAY. IN THE
WAKE OF THE FRONTAL PASSAGE...COLD AIR DAMMING IS EXPECTED FOR
SUNDAY NIGHT AND MONDAY. WITH DECENT MOISTURE AND WEAK LLVL
FORCING...HAVE MENTIONED SLIGHT CHANCE POP OVER THE PIEDMONT AND
SOLID CHANCE FOR NC MOUNTAINS AND FOOTHILLS. THE CONTINENTAL HIGH
BECOMES SUBTROPICAL HIGH AND REMAINS OVER THE SOUTHEAST U.S. TUE/WED
KEEPING A FRONTAL SYSTEM WELL TO OUR NORTH DURING THE PERIOD.
HOWEVER...WE CANNOT RULE OUT THE POSSIBILITY OF AFTERNOON SHOWERS
AND THUNDERSTORMS TUE/WED DUE TO INCREASING MOIST SOUTHERLY FLOW AND
DIURNAL INSTABILITY. DAYTIME TEMPS WILL BE A FEW DEGREES BELOW
NORMAL MON/TUE...THEN BACK ABOVE NORMAL WEDNESDAY.

&&

.AVIATION /13Z THURSDAY THROUGH MONDAY/...
AT KCLT...WINDS WILL REMAIN SSW AS A WARM FRONT MOVES NORTH. SW
WINDS ACROSS THE TERMINAL THIS MORNING WILL GRADUALLY STRENGTHEN
FROM THE PRE DAWN HOURS ON. A 4 TO 6 MB PRESSURE GRADIENT MAY
DEVELOP BY MID MORNING AS THE CENTER OF THE CLIPPER LOW MOVES OVER
THE OHIO RIVER VALLEY. MIXING TO 4 TO 5 KFT SHOULD RESULT IN GUSTY
SW WINDS FROM 14Z THROUGH SUNSET...GUSTING TO 20 TO 25 KTS. A COLD
FRONT ASSOCIATED WITH THE CLIPPER WILL PUSH NW TO SE ACROSS THE
REGION DURING THE LATE AFTERNOON TO EARLY EVENING HOURS. SHRA AND
TSRA SHOULD DEVELOP ALONG AND AHEAD OF THE FRONT...COVERAGE APPEAR
TOO LITTLE AT THIS POINT TO ADD TO THE TAF. WINDS SHOULD DECOUPLE
AND VEER NW AFTER 0Z.

ELSEWHERE...FOG AND LOW CLOUDS WILL REMAIN OVER KHKY THROUGH
13Z...THEN THE WARM FRONT SHOULD LIFT NORTH. SW WINDS ACROSS THE
TERMINAL THIS MORNING WILL GRADUALLY STRENGTHEN FROM THE PRE DAWN
HOURS ON. A BAND OF SHRA/TSRA MAY REACH KAVL AROUND 14Z. A 4 TO 6 MB
PRESSURE GRADIENT MAY DEVELOP BY MID MORNING AS THE CENTER OF THE
CLIPPER LOW MOVES OVER THE OHIO RIVER VALLEY. MIXING TO 4 TO 5 KFT
SHOULD RESULT IN GUSTY SW WINDS FROM 14Z THROUGH SUNSET...GUSTING TO
20 TO 25 KTS...A LITTLE STRONGER OVER THE SC UPSTATE. A COLD FRONT
ASSOCIATED WITH THE CLIPPER WILL PUSH NW TO SE ACROSS THE REGION
DURING THE LATE AFTERNOON TO EARLY EVENING HOURS. SHRA AND TSRA
SHOULD DEVELOP ALONG AND AHEAD OF THE FRONT. WINDS SHOULD DECOUPLE
AND VEER NW AFTER 0Z.

OUTLOOK...A COLD FRONT WILL APPROACH FROM THE NORTH THROUGH FRIDAY.
MAINLY PM SHOWERS/THUNDERSTORMS AND MORE WIDESPREAD RESTRICTIONS
WILL BE POSSIBLE LATE IN THE WEEK AS THE FRONT DIPS FARTHER SOUTH
INTO THE AREA.

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...JOH
NEAR TERM...ARK/NED
SHORT TERM...JOH
LONG TERM...JOH
AVIATION...NED
Hazardous weather outlook, Apr 26, 9:41 AM EDT, 0 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
941 AM EDT THU APR 26 2012

NCZ033-048>053-058-059-062>065-501-503-505-507-509-271345-
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-
941 AM EDT THU APR 26 2012

...SEVERE THUNDERSTORM WATCH 190 IN EFFECT UNTIL 1 PM EDT THIS
AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

SEVERE THUNDERSTORM WATCH.

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-NCZ035-036-056-068>070-502-504-506-508-510-SCZ001-002-
004-005-271345-
RABUN-HABERSHAM-STEPHENS-ALEXANDER-IREDELL-CATAWBA-CLEVELAND-LINCOLN-
GASTON-GREATER CALDWELL-GREATER BURKE-EASTERN MCDOWELL-
GREATER RUTHERFORD-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-
941 AM EDT THU APR 26 2012

...SEVERE THUNDERSTORM WATCH 190 IN EFFECT UNTIL 1 PM EDT THIS
AFTERNOON...

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

.DAY ONE...TODAY AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

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.

GAZ026-028-029-NCZ037-057-071-072-082-SCZ003-006>014-019-271345-
FRANKLIN-HART-ELBERT-DAVIE-ROWAN-MECKLENBURG-CABARRUS-UNION NC-
GREENVILLE MOUNTAINS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
941 AM EDT THU APR 26 2012

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

.DAY ONE...TODAY 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

In the hours before

Special weather statement, Apr 26, 9:22 AM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
922 AM EDT THU APR 26 2012

NCZ068-261400-
CLEVELAND-
922 AM EDT THU APR 26 2012

...GUSTY THUNDERSTORMS WILL AFFECT CLEVELAND COUNTY THROUGH 1015 AM
EDT...

AT 919 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A A
FEW STRONG STORMS NEAR CLIFFSIDE...OR 13 MILES SOUTHEAST OF
RUTHERFORDTON...MOVING SOUTHEAST AT 40 MPH.

PEOPLE IN CLEVELAND COUNTY...

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

WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

LAT...LON 3556 8165 3557 8154 3555 8151 3552 8151
      3541 8145 3536 8141 3533 8136 3529 8136
      3526 8132 3516 8134 3518 8177 3535 8170
      3558 8169

CSH
Special weather statement, Apr 26, 9:26 AM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
926 AM EDT THU APR 26 2012

NCZ035-056-261430-
ALEXANDER-CATAWBA-
926 AM EDT THU APR 26 2012

...GUSTY THUNDERSTORMS WILL AFFECT ALEXANDER AND CATAWBA COUNTIES
THROUGH 1030 AM EDT...

AT 923 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
FEW STRONG STORMS ALONG A LINE EXTENDING FROM 5 MILES SOUTHWEST OF
BOOMER TO 4 MILES NORTHEAST OF CASAR...MOVING EAST AT 30 MPH.

PEOPLE IN ALEXANDER AND CATAWBA COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

ELLENDALE...LONGVIEW...LAKE HICKORY...BETHLEHEM...HICKORY...ST.
STEPHENS...TAYLORSVILLE...CONOVER...NEWTON AND CLAREMONT...

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

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3605 8103 3596 8100 3586 8104 3578 8111
      3571 8105 3570 8099 3562 8093 3555 8095
      3557 8153 3580 8133 3592 8135 3600 8132
      3603 8127 3603 8108

CSH
Special weather statement, Apr 26, 9:29 AM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
929 AM EDT THU APR 26 2012

NCZ069-070-261430-
GASTON-LINCOLN-
929 AM EDT THU APR 26 2012

...GUSTY THUNDERSTORMS WILL AFFECT GASTON AND LINCOLN COUNTIES
THROUGH 1030 AM EDT...

AT 927 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
FEW STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM COOKSVILLE TO
LAWNDALE TO 3 MILES SOUTH OF CLIFFSIDE...MOVING EAST AT 45 MPH.

PEOPLE IN GASTON AND LINCOLN COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

VALE...CHERRYVILLE...LINCOLNTON...BOGER CITY...BESSEMER CITY...IRON
STATION...GASTONIA...DENVER...DALLAS AND LOWELL...

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

WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS.

LAT...LON 3535 8097 3530 8101 3516 8101 3516 8132
      3526 8132 3529 8136 3533 8136 3541 8145
      3552 8151 3555 8151 3556 8153 3555 8096
      3546 8094 3539 8096 3537 8098 3535 8094

CSH
Local storm report, Apr 26, 9:31 AM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
931 AM EDT THU APR 26 2012

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

0922 AM     HAIL             4 SE MORGANTON          35.70N 81.66W
04/26/2012  E0.75 INCH       BURKE              NC   TRAINED SPOTTER

            SPOTTER REPORTED DIME SIZE HAIL

&&

PTANNER
Special weather statement, Apr 26, 9:36 AM EDT, 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
936 AM EDT THU APR 26 2012

GAZ010-017-018-SCZ001>006-261415-
GREATER GREENVILLE-GREATER OCONEE-GREATER PICKENS-GREENVILLE
MOUNTAINS-HABERSHAM-OCONEE MOUNTAINS-PICKENS
MOUNTAINS-RABUN-STEPHENS-
936 AM EDT THU APR 26 2012

...STRONG THUNDERSTORMS WILL AFFECT GREENVILLE...HABERSHAM...
OCONEE...PICKENS...RABUN AND STEPHENS COUNTIES THROUGH 1015 AM EDT...

AT 935 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM TABLE ROCK RESERVOIR
TO 5 MILES EAST OF HIGHLANDS TO 3 MILES EAST OF MACEDONIA...MOVING
SOUTHEAST AT 45 MPH.

THESE STORMS WILL BE NEAR...
  JONES GAP STATE PARK...
  MARIETTA...
  NORTH SALUDA RESERVOIR...
  TIGERVILLE...
  LAKE ROBINSON...
  TOCCOA...

WIND GUSTS UP TO 40 MPH AND SMALL HAIL ARE EXPECTED WITH THESE
STORMS...ESPECIALLY OVER NORTHEAST GEORGIA.

LAT...LON 3500 8355 3500 8311 3507 8276 3513 8268
      3516 8245 3521 8239 3519 8231 3476 8216
      3469 8246 3482 8249 3449 8304 3453 8311
      3448 8318 3449 8354 3443 8362 3450 8367
      3455 8362 3465 8367 3476 8363 3481 8368

HG
Local storm report, Apr 26, 9:38 AM EDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
938 AM EDT THU APR 26 2012

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

0910 AM     HAIL             6 S FRANKLIN            35.09N 83.38W
04/26/2012  E0.75 INCH       MACON              NC   PUBLIC

            3/4 INCH HAIL REPORTED BY PUBLIC

&&

PTANNER

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 9:36 AM EDTSpecial Weather StatementGSPHabersham, Rabun, Stephens39 min
Apr 26, 9:56 AM EDTSpecial Weather StatementGSPFranklin, Hart49 min
Apr 26, 10:36 AM EDTSpecial Weather StatementGSPElbert, Franklin, Hart39 min
Apr 26, 11:01 AM EDTSpecial Weather StatementGSPElbert, Franklin, Hart44 min
Apr 26, 7:09 PM EDTSevere Thunderstorm WarningGSPHabersham, Rabun24 min
Apr 26, 10:04 AM EDTSpecial Weather StatementGSPYork41 min
Apr 26, 10:17 AM EDTSpecial Weather StatementGSPChester, Laurens, Union43 min
Apr 26, 10:57 AM EDTSpecial Weather StatementGSPChester, Laurens33 min
Apr 26, 1:27 PM EDTSevere Thunderstorm WarningGSPCherokee, York63 min
Apr 26, 6:02 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens73 min
Apr 26, 6:53 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville52 min
Apr 26, 7:29 PM EDTSevere Thunderstorm WarningGSPLaurens, Spartanburg, Union42 min
Apr 26, 7:46 PM EDTSpecial Weather StatementGSPUnion29 min
Apr 26, 7:57 PM EDTSpecial Weather StatementGSPOconee48 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Severe Thunderstorm Warnings in South Carolina, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.