A few thunderstorms developed over the North Carolina mountains during the afternoon hours. A little wind damage was reported with one of the storms.
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.
A few thunderstorms developed over the North Carolina mountains during the afternoon hours. A little wind damage was reported with one of the storms.
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 22, 1:32 PM EST, 2 hours 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 232 PM EDT WED SEP 22 2010 .SYNOPSIS... AN UPPER LEVEL RIDGE WILL PERSIST ACROSS THE FORECAST AREA THROUGH FRIDAY...BEFORE A TROUGH BEGINS TO DEVELOP ON SATURDAY. THIS TROUGH WILL STRENGTHEN THROUGH THE WEEKEND...AND LINGER ACROSS THE EASTERN PART OF THE COUNTRY INTO EARLY NEXT WEEK. && .NEAR TERM /THROUGH THURSDAY/... NOT MUCH CHANGE IN THE FORECAST REASONING FROM THIS EVENING FROM WHAT WAS DISCUSSED WITH THE LATE MORNING UPDATE. THE ATMOSPHERE HAS BECOME MODERATELY UNSTABLE THIS AFTN WITH CAPE VALUES RUNNING BETWEEN 1500-2000 J/KG OVER THE MTNS AND FOOTHILLS. AS EXPECTED... SCT TSTMS HAVE DEVELOP ACROSS THE SOUTHWEST AND CENTRAL NC MTNS. THE SHEAR IS VERY WEAK ACROSS THE REGION...AND THE STORMS ARE ONLY DRIFTING SLOWLY OFF THE RIDGE-TOPS. THE STORMS SHOULD MAKE IT A LITTLE OFF THE ESCARPMENT OVER SC AND GA...BUT THEY MAY NOT MAKE IT QUITE AS FAR SOUTH AS THE I-85 URBAN CORRIDOR. UP OVER NC...AS A WEAK SHORTWAVE MOVES EAST OF THE MTNS...STORMS MAY LAST LONGER INTO THE EVENING AND EVENTUALLY PUSH OUT ACROSS THE FOOTHILLS AND WRN PIEDMONT...POSSIBLY AS FAR EAST AS THE CHARLOTTE METRO AREA. ONCE THE STORMS DISSIPATE...IT WILL BE ANOTHER MILD NIGHT...WITH AREAS OF HAZE AND FOG DEVELOPING. AREAS OF DENSE VALLEY FOG WILL DEVELOP OVER THE NC MTNS. IN FACT...ANY LOCATION THAT SEES HEAVY RAIN THIS AFTN WILL HAVE A GOOD CHANCE OF SEEING FOG LATE TONIGHT. THE RIDGE STRENGTHENS OVER THE REGION ON THU. DEWPOINTS MIX OUT MORE IN THE AFTN...AND A MID LEVEL CAPPING INVERSION WILL STRENGTHEN. I HAVE MY DOUBTS THAT ANYTHING WILL FIRE...BUT I/VE KEPT SPOTTY SLIGHT CHANCE POPS OVER THE NC MTN RIDGETOPS. TEMPS WILL BE MUCH ABOVE NORMAL ONCE AGAIN. && .SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/... AS OF 215 PM WEDNESDAY...MID LEVEL HEIGHTS WILL BEGIN TO DECREASE ACROSS THE REGION ON FRIDAY AS THE RIDGE CENTER MOVES OVER THE WESTERN ATLANTIC AS A SHARP TROF TRACKS ACROSS THE GREAT LAKES REGION. MOSTLY CLEAR TO PARTLY CLOUDY CONDITIONS WILL ALLOW HIGH TEMPERATURES TO RISE NEARLY 10 DEGREES ABOVE NORMAL. VERY WARM MID LEVEL TEMPS AND DRY AIR WILL YIELD A CAPPED ATMOS. ON SATURDAY...LOW PRESSURE SYSTEM OVER THE GREAT LAKES WILL TRACK EAST ACROSS NEW ENGLAND. AS THE LOW MOVES EAST...THE ASSOCIATED COLD FRONT WILL SWEEP SOUTHEAST ACROSS THE SOUTHERN APPALACHIANS AND WILL POSSIBLY STALL DURING THE LATE AFTERNOON AND EVENING HOURS. LLVL THICKNESSES AND TEMPERATURE PROFILES WILL REMAIN QUITE WARM AND HIGH TEMPERATURES ARE FORECAST TO PEAK NEAR FRIDAY/S VALUES. TEMPERATURES ARE EXPECTED TO RANGE FROM THE MID 80S ACROSS THE MTN VALLEYS AND L90S EAST WITH DEWPOINTS IN THE L60S. GFS FORECAST SOUNDINGS INDICATE COOLING MID LEVEL TEMPERATURES...RESULTING IN CAPE VALUES GREATER THAN 500 J/KG OVER THE MTNS AND A FEW HUNDRED J/KG EAST. I WILL FORECAST 40 TO 50 POPS OVER THE MTNS WITH 20-30 POPS EAST. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... AS OF 200 PM WEDNESDAY...CONSIDERABLE UNCERTAINTY CONTINUES IN THE MEDIUM RANGE AS MODEL SOLUTIONS DIFFER SIGNIFICANTLY REGARDING THE POSITION AND TRACK OF THE CLOSED UPPER LOW FEATURE. THE 12Z GFS...00Z ECMWF...AND 12Z GEM ALL DEVELOP THE CLOSED LOW OVER THE MID MS VALLEY SUNDAY NIGHT BUT DIVERGE GREATLY FROM THAT POINT ONWARD. THE GFS IS MUCH FURTHER WESTWARD THAN THE OTHER SOLUTIONS...AND ALSO COMPARED TO ITS PREVIOUS RUN...AND ALLOWS THE UPPER LOW TO SIT NEARLY STATIONARY OVER THE ARKLATEX REGION THROUGH NEXT WEDNESDAY. THE GFS IS DEFINITELY THE DRIEST SOLUTION. THE ECMWF LIFTS THE LOW NORTHEASTWARD STARTING ON MONDAY AND PUSHES AN AREA OF DEEP RH...UPPER DIVERGENCE...AND UPSLOPE FLOW ACROSS THE FA. THE GEM TAKES THE LOW ALL THE WAY INTO THE DEEP SOUTH ON MONDAY BUT DOES KEEP THE FA UNDER AN EXTENDED PERIOD OF POTENTIALLY HEAVY PRECIP. THE FORECAST PRIMARILY FOLLOWS THE TIMING OF THE ECMWF...THOUGH I AM HOLDING OFF ON INCREASING POPS INTO THE LIKELY CATEGORY. WILL ALSO CONTINUE TEMPERATURES NEAR NORMAL SUNDAY THROUGH WEDNESDAY. && .AVIATION /19Z WEDNESDAY THROUGH MONDAY/... AT KCLT...TSTMS WERE BUILDING OVER THE SW AND CENTRAL NC MTNS AT ISSUANCE TIME. LATER IN THE DAY THERE IS A CHANCE THAT STORMS WILL ALSO DEVELOP OVER THE WRN NC PIEDMONT AND CB HAS BEEN ADDED TO THE TAF AROUND SUNSET. SOME MVFR HAZE OR FOG IS POSSIBLE LATE TONIGHT...BUT I HAVEN/T ADDED THAT TO THE TAF. ELSEWHERE...SCT TSTMS WILL SLOWLY PUSH EAST OF THE MTNS THIS AFTN AND EVENING. THEY WILL APPROACH THE UPSTATE AIRFIELDS IN A COUPLE HOURS...THOUGH THEY MAY NOT QUITE MAKE IT THAT FAR EAST. I/VE ADDED CBS AT KGMU AND KGSP TO ACCOUNT FOR THIS. LATER TONIGHT AREAS OF MVFR FOG AND HAZE WILL DEVELOP OVER THE REGION. KAVL HAS BEEN A REAL PAIN AS CONDITIONS LOOKED GOOD FOR FOG THIS MORNING...BUT NOTHING HAPPENED. I/M GOING TO FOLLOW THE MOS AND THE FAVORABLE CROSSOVER TEMPS AND PUT IT IN ONCE AGAIN. OUTLOOK...THE POTENTIAL FOR MORNING VALLEY FOG AND ISOLATED AFTERNOON MTN CONVECTION IS EXPECTED THROUGH THE END OF THE WEEK. A COLD FRONT IS EXPECTED TO BRING SHRA/TSTMS TO THE REGION SATURDAY. LOW CLOUDS AND SCT PCPN WILL FOLLOW THE FRONT SUN AND MONDAY. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...BSH NEAR TERM...MCAVOY SHORT TERM...NED LONG TERM...BSH AVIATION...MCAVOY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 249 PM EDT WED SEP 22 2010 GAZ010-017-018-NCZ033-048>053-058-059-062>065-501-503-505-507-509- SCZ001>003-231900- RABUN-HABERSHAM-STEPHENS-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-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- 249 PM EDT WED SEP 22 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS WILL AFFECT THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA THROUGH THE EARLY EVENING. WHILE THE MAIN THREAT FROM THUNDERSTORMS WILL BE CLOUD TO GROUND LIGHTNING...A FEW OF THE STORMS WILL BE CAPABLE OF PRODUCING SMALL AREAS OF DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. GAZ026-028-029-SCZ004>014-019-231900- FRANKLIN-HART-ELBERT-GREATER OCONEE-GREATER PICKENS- GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE- LAURENS-UNION SC-CHESTER-GREENWOOD- 249 PM EDT WED SEP 22 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE FOOTHILLS AND PIEDMONT OF SOUTH CAROLINA AND NORTHEAST GEORGIA THROUGH THE EARLY EVENING. CLOUD TO GROUND LIGHTNING WILL BE THE MAIN THREAT FROM THESE STORMS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. NCZ035>037-056-057-068>072-082-502-504-506-508-510-231900- ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON- MECKLENBURG-CABARRUS-UNION NC-GREATER CALDWELL-GREATER BURKE- EASTERN MCDOWELL-GREATER RUTHERFORD-EASTERN POLK- 249 PM EDT WED SEP 22 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND WESTERN NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE WESTERN PIEDMONT OF NORTH CAROLINA THROUGH THE EARLY EVENING. WHILE THE MAIN THREAT FROM THUNDERSTORMS OVER THE REGION WILL BE CLOUD TO GROUND LIGHTNING...A FEW OF THE STORMS WILL BE CAPABLE OF PRODUCING SMALL AREAS OF DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
317 PM EDT WED SEP 22 2010
NCZ510-222000-
EASTERN POLK-
317 PM EDT WED SEP 22 2010
...A STRONG THUNDERSTORM WILL AFFECT POLK COUNTY THROUGH 400 PM
EDT...
AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MILL SPRING...OR 4 MILES NORTH OF
COLUMBUS...MOVING SOUTHEAST AT 5 MPH.
THIS STORM WILL BE NEAR...
COLUMBUS...
HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE
EXPECTED WITH THIS STORM.
LAT...LON 3538 8211 3534 8208 3533 8206 3526 8197
3524 8196 3519 8203 3520 8224 3526 8228
3529 8229 3539 8220 3540 8214
ARKSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
324 PM EDT WED SEP 22 2010
GAZ010-SCZ001-222015-
OCONEE MOUNTAINS-RABUN-
324 PM EDT WED SEP 22 2010
...A STRONG THUNDERSTORM WILL AFFECT RABUN AND WESTERN OCONEE
COUNTIES THROUGH 415 PM EDT...
AT 320 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MOUNTAIN CITY...OR NEAR CLAYTON...MOVING
SOUTHEAST AT 5 MPH.
* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO TIGER...SKY
VALLEY...MOUNTAIN CITY...DILLARD...CLAYTON...MOUNTAIN REST AND LONG
CREEK.
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.
LAT...LON 3500 8345 3500 8334 3491 8311 3470 8328
3488 8354
07SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 437 PM EDT WED SEP 22 2010 GAZ010-017-018-SCZ001-222115- HABERSHAM-OCONEE MOUNTAINS-RABUN-STEPHENS- 437 PM EDT WED SEP 22 2010 ...A STRONG THUNDERSTORM WILL AFFECT EASTERN HABERSHAM...NORTHERN STEPHENS...SOUTHERN RABUN AND WESTERN OCONEE COUNTIES THROUGH 515 PM EDT... AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR LAKEMONT...OR 7 MILES SOUTH OF CLAYTON... MOVING SOUTHEAST AT 10 MPH. THIS STORM WILL BE NEAR... LONG CREEK... TALLULAH FALLS... TURNERVILLE... HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. LAT...LON 3469 8316 3458 8343 3482 8353 3489 8333 ARK
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
439 PM EDT WED SEP 22 2010
NCZ059-222130-
NORTHERN JACKSON-
439 PM EDT WED SEP 22 2010
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN JACKSON COUNTY
THROUGH 530 PM EDT...
AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES WEST OF DILLSBORO...OR 5 MILES WEST OF
SYLVA...MOVING EAST AT 5 MPH.
THIS STORM WILL BE NEAR...
SYLVA...
SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.
LAT...LON 3543 8335 3545 8336 3547 8333 3546 8331
3552 8322 3551 8318 3549 8316 3531 8306
3526 8331 3532 8333 3538 8333 3541 8337
ARKSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
440 PM EDT WED SEP 22 2010
NCZ052-053-222130-
BUNCOMBE-HAYWOOD-
440 PM EDT WED SEP 22 2010
...A STRONG THUNDERSTORM WILL AFFECT EASTERN HAYWOOD AND WESTERN
BUNCOMBE COUNTIES THROUGH 530 PM EDT...
AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES SOUTHWEST OF CANTO...OR 12 MILES
SOUTHWEST OF MARSHALL...MOVING EAST AT 5 MPH.
THIS STORM WILL BE NEAR...
LEICESTER...
SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.
LAT...LON 3573 8255 3548 8261 3557 8292 3568 8289
3569 8289 3567 8288 3569 8284 3569 8278
3571 8274 3573 8265
ARKSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
454 PM EDT WED SEP 22 2010
NCZ501-502-222145-
CALDWELL MOUNTAINS-GREATER CALDWELL-
454 PM EDT WED SEP 22 2010
...A STRONG THUNDERSTORM WILL AFFECT CALDWELL COUNTY THROUGH 545 PM
EDT...
AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR PATTERSON...OR 5 MILES NORTH OF LENOIR...
MOVING SOUTHEAST AT 15 MPH.
THIS STORM WILL BE NEAR...
LENOIR...
HUDSON...
LAKE RHODHISS...
GRANITE FALLS...
SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.
LAT...LON 3602 8135 3600 8132 3595 8134 3582 8134
3580 8133 3575 8140 3578 8146 3578 8156
3582 8160 3585 8167 3599 8170 3610 8152
ARKThe Knoxville radar (KMRX), 90 km away, was scanning. The volume nearest the first event began at 20:53 UTC.
1 thunderstorm wind. Local standard time, as filed.
A few trees and power lines were blown down in the Sylva area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2010Every state in 2010This day in weather historyWarnings in North Carolina, September 2010
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 2026-09-24. Each event’s entry at NCEI: 261418.