A stationary area of thunderstorms dropped very heavy rain along the Madison, Yancey county line, which resulted in flash flooding during the early evening hours.
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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 stationary area of thunderstorms dropped very heavy rain along the Madison, Yancey county line, which resulted in flash flooding during the early evening hours.
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 Aug 17, 2:01 PM EST, 2 hours 59 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 301 PM EDT TUE AUG 17 2010 .SYNOPSIS... DEEP TROPICAL MOISTURE WILL PERSIST OVER THE REGION THROUGH TOMORROW. A WEAK COLD FRONT WILL THEN APPROACH THE AREA FROM THE NORTHWEST ON THURSDAY FOLLOWED BY ANOTHER WEAK FRONT MOVING TOWARDS THE CAROLINAS LATER THIS WEEKEND. && .NEAR TERM /THROUGH WEDNESDAY/... LATEST SFC ANALYSIS INDICATES THAT THE COLD FRONT HAS STALLED ACROSS THE SOUTHERN APPALACHIANS. THE AIRMASS ALONG AND SOUTHEAST OF THE FRONT WILL REMAIN MARGINALLY UNSTABLE WITH VERY LITTLE LLVL CIN. FORECAST SOUNDINGS INDICATE THAT PROFILES WILL REMAIN VERY MOIST WITH HIGH FREEZING LEVELS. SATELLITE DERIVED BLENDED PW SHOWS A LARGE PLUME OF VALUES RANGING 2.25 TO 2.4 INCHES ACROSS THE REGION. WIDESPREAD TO NUMEROUS SHRA AND TSRA WILL DEVELOP ALONG AND EAST OF THE FRONT THE REST OF THIS AFTERNOON AND OVERNIGHT. THE PRIMARY CONVECTIVE MODE SHOULD REMAIN CLUSTERS OF SHRA WITH HEAVY RAIN...ONE OR TWO EMBEDDED TSRA MAY PRODUCE ISOLATED DAMAGING WET MICROBURST. OVERNIGHT...INSTABILITY WILL REMAIN ACROSS THE FORECAST AREA EAST OF THE STALLED FRONT. FORECAST SOUNDINGS AND PLAIN VIEW OF THE MESOSCALE MODELS INDICATE THAT WEAK INSTABILITY WILL REMAIN THROUGH TONIGHT WITH VERY LOW LCL LEVELS. WEAK ISENTROPIC LIFT AND INSTABILITY SHOULD SUPPORT LIKELY TO SCT COVERAGE OF SHRA AND TSRA. GIVEN THE THICK SKY COVER AND HIGH CONVECTIVE COVERAGE...I WILL FAVOR THE MILD MOS GUIDANCE FOR TONIGHT. WEDNESDAY...CONDITIONS WILL LARGELY REMAIN SIMILAR TO TODAY...STALLED SFC FEATURE ACROSS THE MTNS...TROPICAL MOISTURE...AND MODERATE INSTABILITY. HOWEVER...NEAR TERM MODELS INDICATE THAT A MID LEVEL TROUGH WILL RIPPLE ACROSS THE REGION. BASED ON MOS GUIDANCE AND PERSISTENCE...I WILL FORECAST LIKELY TO CATE POPS ACROSS THE CWA DURING THE AFTERNOON. THE MAIN CONCERN WITH THE CONVECTION WILL REMAIN WITH THE POTENTIAL OF EXCESSIVE RAINFALL. TEMPERATURES SHOULD PEAK ONE TO TWO DEGREES ABOVE NORMAL. && .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/... AS OF 225 PM TUESDAY...SHORT WAVE PUSHES EAST OF THE AREA WED NITE WITH THE UPPER TROF AXIS FOLLOWING SUIT ON THU. WITH SFC BOUNDARY DRAPED ACROSS THE AREA...CONVECTION SHOULD LINGER THRU THE NITE WED NITE...BUT SHOW SOME DIURNAL DECREASE IN COVERAGE. EXPECT COVERAGE TO PICK BACK UP THU WITH THE FRONT STILL IN THE AREA AND WEAK FORCING ALOFT...AT LEAST EARLY ON. PRECIP CHANCES SHUD SHOW A MAINLY DIURNAL ENDING TREND THU NITE WITH WLY FLOW DEVELOPING...DECREASING INSTABILITY AND LOSS OF FORCING. UPPER RIDGE BUILDS BACK OVER THE AREA FROM THE WEST FRI. SFC HIGH MOVING INTO NEW ENGLAND NOSES SOUTH INTO THE AREA IN A CAD CONFIGURATION. HOWEVER...SLY LOW LEVEL FLOW RETURNS ACROSS THE WESTERN CWFA AS SFC LOW AND ASSOCIATED COLD FRONT MOVE INTO THE MID-WEST. MOISTURE MOVES IN ALONG WITH THE SLY FLOW...SO HAVE BROUGHT CHC POP BACK ACROSS THE WEST AND SLIGHT CHC POP ACROSS THE MIDDLE PORTION OF THE CWFA. KEPT DRY FCST ACROSS THE EAST WHERE FLOW IS MORE NELY AND MOISTURE IS THE LEAST. A WARM MUGGY NITE EXPECTED WED NITE WITH NEAR NORMAL HIGHS FOR THURSDAY. KEPT LOWS NEAR NORMAL THU NITE WITH THE LOSS OF CONVECTION AND CLOUDS AS DRIER AIR MOVES IN. HIGHS FRIDAY RETURN SLIGHTLY ABOVE NORMAL. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... AS OF 2 PM TUESDAY...THE MEDIUM RANGE FCST PICKS UP AT 00Z ON SAT WITH HEIGHTS RISING OVER THE FCST AREA AS THE AXIS OF THE UPPER RIDGE IS ORIENTED JUST WEST OF THE CWFA. A FAIRLY HEALTHY H5 SHORTWAVE IS EXPECTED TO PASS WELL NORTH OF THE REGION ON SUN. LONG RANGE MODELS THEN HAVE THIS FEATURE GETTING CAUGHT UP WITHIN A LARGER UPPER TROUGH THAT BEGINS TO DIG DOWN OVER THE EASTERN SEABOARD BY DAY 7. THE CENTRAL CONUS H5 RIDGE BECOMES POSITIVELY TILTED AND HIGHLY AMPLIFIED AT THIS POINT BUT IT IS UNCLEAR WHETHER IT WILL PUSH VERY FAR INTO OUR AREA AS THIS IS BEYOND DAY 7. AT THE SFC...ON SAT THE WEAK COLD FRONT WILL ESSENTIALLY WASH OUT OVER THE CAROLINAS WHILE ANOTHER WEAK FRONT IS EXPECTED TO APPROACH THE CWFA ON SUN AS A SFC RIDGE TRIES TO PUSH DOWN OVER THE MISS RIVER VALLEY. THE EXTENT OF THIS SFC RIDGING IS UNCERTAIN AT PRESENT AS MODELS ALSO APPEAR TO GENERATE A WEAK SFC LOW TO OUR NE IN CONJUNCTION WITH THE EASTERN SEABOARD UPPER TROUGH. PRECIP CHANCES WILL BE HIGHEST ON SAT AND SUN WITH HIGHER MOISTURE AND INSTABILITY AND POPS TAPER OFF ON DAYS 6 AND 7. TEMPS WERE LARGELY UNCHANGED AND ARE FCST TO BE ABOUT 2 TO 4 DEGREES ABOVE CLIMATOLOGY EARLY IN THE PERIOD AND PROBABLY A BIT COOLER LATER IN THE PERIOD. && .AVIATION /19Z TUESDAY THROUGH SUNDAY/... AT KCLT...THE TERMINAL WILL REMAIN UNDER AN UNSTABLE AND MOIST ENVIRONMENT THROUGH THE TAF PERIOD. SHRA AND TSRA COVERAGE WILL INCREASE THE REST OF THE THIS AFTERNOON AND EVENING AS A COLD FRONT STALLS OVER THE MTNS. THE TERMINAL WILL LIKELY SEE PERIODS OF SHRA AND POSSIBLY A TSRA THROUGH 5Z. MOIST PROFILES AND WET GROUND MAY SUPPORT THE FORMATION OF FOG AND LOW CLOUDS LATE TONIGHT...I WILL INDICATE MVFR FOG AND CEILINGS OVERNIGHT. AFTER SUNRISE...FOG SHOULD STEADILY ERODE AND CEILINGS WILL LIFT TO VFR. SHRA AND TSRA WILL BEGIN TO INCREASE IN COVERAGE BY MID MORNING...DUE TO INCREASES IN INSTABILITY AND SUPPORT FROM AN APPROACHING MID LEVEL TROUGH. ELSEWHERE...ABUNDANT SHRA AND TSRA WILL CONTINUE TO DEVELOP ACROSS THE WESTERN CAROLINAS THROUGH THE EVENING HOURS. PERIODS OF REDUCED VIS AND CEILINGS WILL OCCUR DURING HEAVY RAIN. OTHERWISE...CONDITIONS SHOULD REMAIN VFR THROUGH THE DAYTIME. MOIST PROFILES AND WET GROUND MAY SUPPORT THE FORMATION OF FOG AND LOW CLOUDS LATE TONIGHT...I WILL INDICATE MVFR TO IFR FOG AND CEILINGS OVERNIGHT. AFTER SUNRISE...FOG SHOULD STEADILY ERODE AND CEILINGS WILL LIFT TO VFR. SHRA AND TSRA WILL BEGIN TO INCREASE IN COVERAGE BY MID MORNING...DUE TO INCREASES IN INSTABILITY AND SUPPORT FROM AN APPROACHING MID LEVEL TROUGH. OUTLOOK...A VERY MOIST AIRMASS WILL REMAIN OVER THE REGION THROUGH THE REST OF THE WORK WEEK. SHRA AND TSRA COVERAGE WILL INCREASE DURING THE AFTERNOON AND EVENING AND DECREASE OVERNIGHT. MOIST SOIL AND LIGHT WIND MAY SUPPORT THE FORMATION OF LIGHT FOG BEFORE SUNRISE...THICKER FOG MAY EXIST EACH MORNING WITHIN THE MTN VALLEYS. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...JPT NEAR TERM...NED SHORT TERM...RWH LONG TERM...JPT AVIATION...NED
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 335 PM EDT TUE AUG 17 2010 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-181945- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA- ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-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-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK- ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 335 PM EDT TUE AUG 17 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE REGION INTO THE EVENING. ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE...PRODUCING DAMAGING WIND GUSTS AND LOCALLY HEAVY...IF NOT EXCESSIVE RAINFALL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NUMEROUS TO WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED ON WEDNESDAY...WITH LOCALLY HEAVY TO EXCESSIVE RAINFALL ACCOMPANYING THE STRONGER STORMS. .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), 84 km away, was scanning. The volume nearest the first event began at 21:58 UTC.
2 flash flood. Local standard time, as filed.
A stretch of Bald Mountain Rd was closed in the western part of the county due to flooding along Bald Mountain Creek. Several bridges were damaged by high water. A school bus was briefly stranded in the high water and two children were rescued from the bus.
Flash flooding developed along smaller streams in northern Madison County, including the Cane River. Several roads were flooded or closed, including Wolf Laurel Rd, part of which was washed out, and Puncheon Fork Rd. Part of Village Ln was washed out and a covered bridge was destroyed in this area as well.
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, August 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: 257453, 257452.