Scattered thunderstorms developed along and east of a stationary front over western South Carolina. A couple of the storms produced damaging wind and large hail.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GSP wrote it up.
Scattered thunderstorms developed along and east of a stationary front over western South Carolina. A couple of the storms produced damaging wind and large hail.
The local office's own words before the first event, 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 the first event at Sep 25, 9:59 AM EST, 2 hours 34 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1059 AM EDT SUN SEP 25 2011 .SYNOPSIS... A WARM AND MOIST AIR MASS WILL LINGER ACROSS THE SOUTHERN APPALACHIAN REGION TODAY. A DEEP UPPER LOW OVER THE OHIO VALLEY WILL REMAIN THROUGH THE EARLY WEEK...A COLD FRONT WILL SLOWLY MOVE ACROSS THE REGION LATE MONDAY INTO TUESDAY. && .NEAR TERM /THROUGH TONIGHT/... ADJUSTMENTS BEING MADE FOR CLOUDS AND POPS WITH SLOW EWD CLEARING AND CONVECTION TRYING TO DEVELOP ON DIFFERENTIAL HEATING AND ALONG ELONGATED S/W CROSSING THE FORECAST AREA. IN ADDITION OUR EASTERN FORECAST AREA SITS UNDER THE RIGHT ENTRANCE REGION OF A SLIGHTLY ANTICYCLONIC JET FOR LIFTING PURPOSES...HOWEVER BEST INSTABILITY MAY REMAIN WEST WHERE CLEARING CAN DESTABILIZE A BIT MORE. BELOW IS THE EARLIER FORECAST DISCUSSION. THE LATEST UPDATE KEEPS MORE SOLID CHC POPS ALONG THE ERN ESCARPMENT OF THE MTNS THROUGH THE MORNING HOURS AS S TO SE UPSLOPE FLOW CONTINUES. OTHERWISE...THE CLOSED UPPER LOW CENTER LINGERS OVER IL THIS MORNING. AN UPPER LEVEL JETLET EAST OF THE ASSOCIATED TROUGH HAS PERSISTED ALONG THE APPALACHIAN MTN CHAIN FOR DAYS...AND DIVERGENCE NEAR THE ENTRANCE REGION WILL CONTINUE THROUGH TODAY. SLIGHTLY DRIER AIR WILL ADVECT INTO THE REGION ON SW FLOW AT MID LEVELS TODAY. THIS SHOULD KEEP ANY PRECIP COVERAGE DOWN SOMEWHAT...BUT MAY ALLOW ANY CONVECTION THAT DEVELOPS TO GENERATE BETTER OUTFLOWS GIVEN THE STRONG SFC TO MID LEVEL THETA E LAPSE. SEVERE POTENTIAL STILL APPEARS QUITE LIMITED THOUGH. WILL ADVERTISE BETTER POPS ACROSS NRN AND ERN SECTIONS...AND THE LOWEST POPS IN THE DRIER AIR S AND SW. WILL LEAN STRONGLY TOWARD THE WARMER MOS GUIDANCE FOR MAX TEMPS. SRLY 850 MB FLOW WILL INCREASE TONIGHT...ALONG WITH SE BL FLOW...TO BRING ANOTHER ROUND OF NOCTURNAL UPSLOPE SHOWERS TO THE ERN SLOPES OF THE MTNS. PRECIPITABLE WATER VALUES WILL ALSO INCREASE THROUGH THE EARLY MORNING HOURS MONDAY AHEAD OF AN APPROACHING FRONT. WILL FOCUS SLIGHT CHC TO LOW END CHC POPS MAINLY ALONG THE EAST SIDE OF THE MTNS ONCE AGAIN. WILL ADVERTISE RELATIVELY WARM MINS...ABOUT 10 DEGREES ABOVE NORMAL. && .SHORT TERM /MONDAY THROUGH TUESDAY/... AS OF 4 AM SUNDAY...ON MONDAY...A H5 CLOSED LOW WILL GRADUALLY LIFT NORTHEAST ALONG THE SOUTHERN PORTION OF LAKE MICHIGAN AS RIDGING CONTINUES OVER THE ROCKIES AND THE WESTERN ATLANTIC. SHORT RANGE MODELS INDICATE THAT A COLD FRONT WILL APPROACH THE SOUTHERN APPALACHIANS DURING THE DAY. BY MONDAY EVENING AND OVERNIGHT...THE COLD FRONT IS EXPECTED TO MOVE ACROSS THE MTNS AND SLOW IF NOT STALL. CAPE VALUES ALONG AND AHEAD OF THE FRONT APPEAR TO RANGE BETWEEN 500 TO 1000 J/KG THROUGH THE PERIOD. I WILL INDICATE 30 TO 40 POPS ACROSS THE CWA ON MONDAY...HIGHER VALUES ACROSS THE MTNS. MONDAY EVENING...IT APPEARS THAT ISO TO SCT SHRA AND TSRA WILL REMAIN ACROSS THE REGION AS THE FRONT SLOWS. HIGHS ON MONDAY MAY PEAK A COUPLE OF DEGREES ABOVE NORMAL. LOWS SHOULD REMAIN BETWEEN 4 TO 6 DEGREES ABOVE NORMAL GIVEN THE PLACEMENT OF THE BOUNDARY. ON TUESDAY...THE COLD FRONT IS EXPECTED TO SLOWLY SLIDE EAST DURING THE DAY. IT APPEARS THAT MID LEVEL SUPPORT WILL REMAIN WEAK...WITH WIDESPREAD WEAK INSTABILITY ALONG AND AHEAD OF THE FRONT. I WILL TIE POPS TO THE FORECAST LOCATION OF THE SFC BOUNDARY...RESULTING IN SCHC POPS WEST TO 40 POPS ALONG AND EAST OF I-77 DURING THE HEART OF THE AFTERNOON. HIGH TEMPERATURES SHOULD VERIFY CLOSE TO MONDAY/S VALUES. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... AT 410 AM SUNDAY...THE CLOSED UPPER LOW WILL OPEN AND MOVE OVER EASTERN CANADA DURING THE MID WEEK AS A STRONG RIDGE REMAINS OVER THE ROCKIES. THIS PATTERN WILL LIKELY PERSIST INTO LATE IN THE WORK WEEK. BY THE WEEKEND...A L/W TROF WILL DIG ACROSS THE ATLANTIC STATES AS HEIGHTS RISE OVER THE WEST. A COLD FRONT IS EXPECTED TO PUSH ACROSS THE REGION ON FRIDAY...BUT MOISTURE REMAINS VERY LIMITED. THIS PATTERN SHOULD FAVOR DRY CONDITIONS ACROSS THE FA THROUGH THE EXTENDED PERIOD. TEMPERATURES WILL RANGE CLOSE TO SEASONABLE VALUES THROUGH FRIDAY...THEN TURNING COOLER FOR THE WEEKEND. && .AVIATION /15Z SUNDAY THROUGH THURSDAY/... AT KCLT...MOIST ESE SFC FLOW CONTINUES THIS MORNING...AND IFR CIGS AND VSBYS...WILL ONLY SLOWLY IMPROVE THROUGH MIDDAY...GIVEN THE FACT OF LACK OF OVERALL MECHANISM TO SCOUR THINGS OUT. SCATTERED THUNDERSTORMS WILL BE POSSIBLE WITH HE MOIST BL AND LINGERING BOUNDARIES...BUT WITH CONFIDENCE TOO LOW TO MENTION FOR THIS AFTN AT PRESENT. ANOTHER ROUND OF LOW CLOUDS APPEARS IN STORE FOR TONIGHT. FLOW WILL CONTINUE TO TOGGLE BETWEEN ESE AND ENE THROUGH THE PERIOD. ELSEWHERE...UPSLOPE PRECIPITATION HAS WANED BUT NEW CONVECTION CONTINUES TO DEVELOP ON THE DIFFERENTIAL HEATING AXIS. EXPECT A SLOW RECOVERY OF CIGS/VSBYS AT ALL SITES BUT WILL HAVE TO PAY CLOSE ATTENTION TO AN INCREASE IN TSTM POSSIBILITIES. OUTLOOK...A MOIST BOUNDARY LAYER WILL PERSIST THROUGH MONDAY. A COLD FRONT WILL MOVE INTO THE REGION MON NIGHT AND SLIP EAST OF THE AREA THROUGH TUE NIGHT. DRYING IS EXPECTED FROM WED ONWARD. 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...NED NEAR TERM...HG/TS SHORT TERM...NED LONG TERM...NED AVIATION...HG/TS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 342 AM EDT SUN SEP 25 2011 NCZ033-049-050-053-065-501>510-260745- AVERY-YANCEY-MITCHELL-BUNCOMBE-HENDERSON-CALDWELL MOUNTAINS- GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS- EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-GREATER RUTHERFORD- POLK MOUNTAINS-EASTERN POLK- 342 AM EDT SUN SEP 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. HEAVY RAIN SHOWERS AND ISOLATED THUNDERSTORMS MOVING REPEATEDLY ALONG THE BLUE RIDGE THIS MORNING COULD PRODUCE ISOLATED FLOODING. OTHERWISE...SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THROUGH THE AFTERNOON AND EVENING HOURS. CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND BRIEF HEAVY RAINFALL WILL BE POSSIBLE WITH ANY THUNDERSTORMS. THE SHOWER MAY FOCUS ALONG THE BLUE RIDGE AGAIN TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. NCZ035>037-048-052-056-057-059-063-064-068>072-082-SCZ002-003- 005>014-019-260745- ALEXANDER-IREDELL-DAVIE-MADISON-HAYWOOD-CATAWBA-ROWAN- NORTHERN JACKSON-SOUTHERN JACKSON-TRANSYLVANIA-CLEVELAND-LINCOLN- GASTON-MECKLENBURG-CABARRUS-UNION NC-PICKENS MOUNTAINS- GREENVILLE MOUNTAINS-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG- CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 342 AM EDT SUN SEP 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION THIS AFTERNOON AND EVENING. ANY THUNDERSTORMS MAY PRODUCE CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND BRIEFLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. GAZ010-017-018-026-028-029-NCZ051-058-062-SCZ001-004-260745- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-SWAIN-GRAHAM-MACON- OCONEE MOUNTAINS-GREATER OCONEE- 342 AM EDT SUN SEP 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE.
The Greer radar (KGSP), 46 km away, was scanning. The volume nearest the first event began at 17:34 UTC.
2 hail, 1 thunderstorm wind. Local standard time, as filed.
Numerous trees were blown down throughout the city of Laurens.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2011Every state in 2011This day in weather historyWarnings in South Carolina, September 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 348019, 348020, 348345.