A fast moving, narrow line of showers and thunderstorms along a cold front caused a small area of wind damage in the North Carolina Mountains.
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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 fast moving, narrow line of showers and thunderstorms along a cold front caused a small area of wind damage in the North Carolina Mountains.
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 Apr 25, 12:56 AM EST, 1 hour 29 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 156 AM EDT SUN APR 25 2010 .SYNOPSIS... STRENGTHENING SOUTHERLY FLOW WILL PROMOTE WIDESPREAD SHOWERS AND THUNDERSTORMS TONIGHT AND EARLY SUNDAY MORNING...BEFORE A COLD FRONT MOVES OVER THE REGION SUNDAY AFTERNOON AND EVENING. HIGH PRESSURE WILL THEN BUILD BACK OVER THE SOUTHEAST BY THE MIDDLE OF NEXT WEEK. && .NEAR TERM /THROUGH TODAY/... ATMOSPHERE HAS BEEN SLOW TO DESTABILIZE ACROSS THE WRN CAROLINAS THIS EVENING...AS FCST BY PREVIOUS MODEL RUNS. AS OF 02Z...WE STILL LACK SURFACE-BASED INSTABILITY/BUOYANCY...SO CONVECTIVE CELLS MOVING IN FROM N GA QUICKLY GIVE UP THEIR LIGHTNING AS THEY MOVE NE INTO OUR AREA. RADAR TRENDS ALSO SHOW THE LEADING EDGE OF THE MID LEVEL DRY AIR AS THE BACK EDGE OF THE MORE WIDESPREAD SHOWERS AND STORMS OVER NW GA. PROSPECTS FOR INCREASED INSTABILITY STILL REMAIN GRIM... BUT NOT READY TO COMPLETELY GIVE UP ON SVR POTENTIAL...OWING TO STRONG SHEAR THAT WILL PERSIST OVERNIGHT. THE BEST COMBINATION OF SHEAR AND INSTABILITY IS EXPECTED TO OCCUR FROM 06Z TO 12Z OR SO... JUST NOT SURE GOING FORWARD IF IT WILL AMOUNT TO ENOUGH OF A THREAT TO LEAD TO ANYTHING MORE THAN ISOLATED SEVERE. IN FACT...SPC HAS CUT BACK ON THE EASTWARD EXTENT OF THE SLIGHT RISK. SO...SOME ADJUSTMENTS ARE IN ORDER. AFTER 03Z...THE WIDESPREAD COVERAGE OF CONVECTIVE STORMS SHOULD BE LIMITED TO THE AREA E OF THE MTNS.... WITH THE GRADIENT GRADUALLY SHIFTING EAST OVER THE NEXT SEVERAL HOURS. THINK A LIKELY TO CHANCE POP WILL HANDLE THE COVERAGE OVER THE MTNS. TEMPS SHOULD STAY NEARLY STEADY OVERNIGHT...SO ADJUSTMENTS WERE MADE BASED ON RECENT OBS. STORMS ARE LIKELY TO BE ONGOING ON SUNDAY MORNING. WITH THE FLOW TURNING MORE WESTERLY...THEY SHOULD MOVE OUT OF THE FA FAIRLY QUICKLY. HOWEVER...THE NAM MAINTAINS QUITE A BIT OF INSTABILITY OVER THE REGION DURING THE DAY. IN FACT...THE STEEPEST LAPSE RATES OF THIS WHOLE EVENT ARE TOMORROW AFTN. THE GFS DRIES THINGS OUT MUCH MORE QUICKLY. HOWEVER...IT/S NOT ALWAYS EASY TO SCOUR OUT MOISTURE E OF THE MTNS...AND I/VE MAINTAINED CHANCE POPS THROUGH THE DAY. WHILE THE COVERAGE SHOULD BE SCT AT BEST...THE POTENTIAL CERTAINLY EXISTS FOR MORE DISCRETE MULTICELL OR SUPERCELL STORMS TO DEVELOP. && .SHORT TERM /TONIGHT THROUGH TUESDAY/... AS OF 130 PM SATURDAY...THE FA WILL BE UNDER A BROAD L/WV ERN CONUS TROF THRU THE SHORT TERM...WITH TWO PRIMARY S/WVS TRACKING ACRS THE AREA...ONE SUNDAY NIGHT AND A SECOND ONE TUESDAY. MODELS IN MUCH DISAGREEMENT ON TIMING AND AMPLITUDE OF BOTH FEATURES...ESPECIALLY THE SECOND ONE...WHICH DIVES SE ACRS THE NRN PLAINS STATES. UNDER THE FIRST TROF...A SFC LOW WILL CONTINUE TO WEAKEN OVER THE UPPER OH VALLEY...AS A COASTAL LOW BECOMES THE DOMINANT LOW. THE FA WILL BE UNDER A GENERALLY Q-VECTOR DIVERGENT REGION...WITH LLVL CAA AND DRY AMS WORKING IN FROM THE WEST. HOWEVER...WRAPAROUND MOISTURE WILL LINGER ALONG THE WESTERN SLOPES OF THE APPALACHIANS THRU MONDAY. FCST SNDGS SHOW ENUF MOISTURE AND LLVL CAPE FOR SHWRS...BUT MID LVL CAP TO PRECLUDE A MENTION OF TSTMS. IN THE LEE OF THE TN BORDER COUNTIES...ISOLD SHWR ACTIVITY LOOKS POSSIBLE AS S/WV ENHANCES LIFT. TEMPS STILL SLIGHTLY ABOVE NORMAL SUNDAY NIGHT AND MONDAY. AS A SECOND...MORE POTENT S/WV DIVES SEWD THRU THE AREA TUESDAY...THERE LOOKS TO BE LTL IN THE WAY OF SFC REFLECTION...WITH JUST A LEE TROF AND UPSLOPE ALONG TN BORDER BEING THE ONLY SOURCES OF LLVL CONVERGENCE. GUIDANCE SEEMS TO AGREE ON SLIGHTLY HIGHER CHCS THAN MONDAY...SO INCREASED POP TO HIGH-END CHC TN BORDER AND LOW-END CHC TO THE EAST (STILL SLGT CHC IN SRN UPSTATE AND UPPER SAVANNAH VALLEY. AGAIN...NOT GREAT MID LVL LAPSE RATES FOR TSTMS...SO KEPT WORDING AS JUST SHWRS. TEMPS WILL BE ABOUT A CATEGORY COOLER THAN MONDAYS READINGS UNDER NWLY CAA FLOW. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... AS OF 130 PM SATURDAY...THE MEDIUM RANGE FCST PICKS UP AT 00Z ON WED WITH THE 12Z GFS AND OLDER 00Z ECMWF REMAINING IN FAIRLY GOOD AGREEMENT WITH THE LINGERING L/WV TROUGH ACROSS THE EASTERN CONUS. THE NEWER GFS DEVELOPS AN ANTECEDENT S/WV DURING THE DAY ON WED AND PUSHES THE ASSOCIATED VORT MAX SOUTH OF THE CWA. THIS FEATURE IS NOT PRESENT ON EITHER THE ECMWF OR GEM MODEL. REGARDLESS...BASED ON ITS POSITION I DOUBT IT WOULD HAVE MUCH IMPACT ON OUR SENSIBLE WX. HEIGHTS RISE THRU THE REMAINDER OF THE PERIOD AS AN H5 RIDGE BUILDS IN FROM THE WEST AND SFC HIGH PRESSURE DOMINATES THE SYNOPTIC PATTERN THRU DAY 7. LINGERING NW FLOW MAY BE ABLE TO PRODUCE SOME PRECIP OVER THE NC MOUNTAINS EARLY IN THE PERIOD...HOWEVER LATEST GUIDANCE IS SHYING AWAY FROM THIS. I KEPT A CHANCE POP FOR THE FIRST 6 HRS OF THE MEDIUM RANGE AND THEN TAPERED OFF TO A DRY FCST AFTER 12Z WED. PATTERN IS PROGGED TO AMPLIFY FURTHER ON DAYS 6 AND 7 WITH LIGHT WINDS AND CLIMBING TEMPS. BY DAY 7...MAX VALUES IN THE LOW TO MID 80S ARE FCST. && .AVIATION /06Z SUNDAY THROUGH THURSDAY/... DYNAMIC SITUATION REMAINS EARLY THIS MORNING AS AREA OF SH/TSRA MOVE OUT OF THE FOOTHILLS AND PIEDMONT...WITH ANOTHER LINE OF SH/TSRA TO MOVE INTO THE MTNS AND WRN CWFA. THIS LINE WILL MOVE ACROSS AND OUT OF THE AREA NEAR DAYBREAK. ALTHOUGH STORMS ARE EMBEDDED IN THIS LINE...THERE IS STILL ENUF UNCERTAINTY...DUE TO STABLE ATMOS OVER OUR AREA AND TIMING CONCERNS...TO KEEP ONLY CB MENTIONED IN TAFS. LOW CLOUDS WILL CLEAR BEHIND THIS LINE...BUT MAY LINGER THRU NOON. SLY WINDS AHEAD OF THE LINE BECOME SWLY AND GUSTY DURING THE MORNING...WITH SPEEDS AND GUSTS INCREASING FOR THE AFTERNOON. WINDS DIMINISH THIS EVENING WITH CLEARING SKIES. AT KCLT...EXPECT PREVAILING MVFR WITH TEMPO IFR IN SHRA THRU DAYBREAK. MVFR CIGS WITH GUSTY SSW WINDS DURING THE MORNING AND VFR WITH STRONGER SW WINDS AND GUSTS FOR THE AFTERNOON. LIGHT SW WINDS WITH CLEARING SKIES THIS EVENING. ELSEWHERE...EXPECT PREVAILING MVFR WITH TEMPO IFR IN SHRA THRU DAYBREAK. MVFR CIGS WITH GUSTY SW WINDS DURING THE MORNING AND VFR WITH STRONGER SW WINDS AND GUSTS FOR THE AFTERNOON. LIGHT SW WINDS WITH CLEARING SKIES THIS EVENING. KAVL WILL SEE WINDS BECOMING LIGHT NWLY DURING THE EVENING. OUTLOOK...SCT SHRA AND A FEW TSTMS ARE STILL POSSIBLE MON AND TUE...MAINLY OVER THE MTNS...BUT RESTRICTIONS WILL BE MORE SPOTTY. FAIR WEATHER IS THEN EXPECTED WED-FRI. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...JPT NEAR TERM...MCAVOY/PM SHORT TERM...ARK LONG TERM...JPT AVIATION...RWH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 138 AM EDT SUN APR 25 2010 GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-SCZ001>006- 010-011-260545- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-MADISON-SWAIN-HAYWOOD- BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-ANDERSON-ABBEVILLE- 138 AM EDT SUN APR 25 2010 ...TORNADO WATCH 102 IN EFFECT UNTIL 9 AM EDT THIS MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TONIGHT AND SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. TORNADO WATCH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. 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. NCZ033-035>037-049-050-056-057-068>072-082-501>510-SCZ007>009- 012>014-019-260545- AVERY-ALEXANDER-IREDELL-DAVIE-YANCEY-MITCHELL-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-SPARTANBURG-CHEROKEE- YORK-LAURENS-UNION SC-CHESTER-GREENWOOD- 138 AM EDT SUN APR 25 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TONIGHT AND SUNDAY. WIND SHEAR AND INSTABILITY WILL INCREASE ACROSS THE REGION EARLY THIS MORNING...BRINGING AN INCREASED RISK OF ISOLATED SEVERE STORMS. ALTHOUGH THE BEST CHANCES FOR SEVERE THUNDERSTORMS PRIOR TO DAYBREAK WILL EXIST WEST OF THE I-26 CORRIDOR...SCATTERED STORMS WILL SPREAD INTO THE PIEDMONT AND FOOTHILLS OF NORTH CAROLINA...AS WELL AS EASTERN PORTIONS OF THE UPSTATE BY SUNRISE. THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL...AREAS OF DAMAGING WINDS...AND ISOLATED TORNADOES. THIS THREAT FOR SEVERE STORMS WILL CONTINUE INTO THE AFTERNOON. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. 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.
The Knoxville radar (KMRX), 110 km away, was scanning. The volume nearest the first event began at 07:26 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several trees and power lines were blown down in and around the city, with one tree down on a home.
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, April 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 2026-10-01. Each event’s entry at NCEI: 227467.