North Carolina, 2013

Damaging Wind in North Carolina, August 9, 2013

August 9, 2013 · NWS GSP · 1 event in 1 county or zone

A thunderstorm caused quite a bit of wind damage over northern Iredell County in the western piedmont of North Carolina.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$5,000
Crop damage
None recorded
Events
1

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.

What happened

The episode as NWS GSP wrote it up.

A thunderstorm caused quite a bit of wind damage over northern Iredell County in the western piedmont of North Carolina.

What forecasters said that day

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 9, 3:52 PM EST, 43 minutes earlier.

Area forecast discussion, Aug 9, 3:52 PM EST, 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
452 PM EDT FRI AUG 9 2013

.SYNOPSIS...
MOIST SOUTHERLY FLOW WILL REMAIN ACROSS THE REGION THROUGH SATURDAY.
A COLD FRONT WILL MOVE SLOWLY SOUTH INTO THE AREA LATE THIS WEEKEND.
A SECOND COLD FRONT IS EXPECTED TO MOVE OVER THE REGION DURING THE
MID WEEK. DEEP MOISTURE MAY LINGER OVER THE SOUTHERN APPALACHIAN
REGION UNTIL NEXT WEEKEND.

&&

.NEAR TERM /THROUGH SATURDAY/...
AS OF LATE AFTERNOON...NUMEROUS SHOWERS AND STORMS STILL MAKING
THEIR WAY EASTWARD ACROSS THE FCST AREA WITH NO PARTICULAR
ORGANIZATION. WILL BUMP UP THE PRECIP CHANCES INTO THE CLT METRO
AREA AND THE WESTERN PIEDMONT TO ACCOUNT FOR THIS. OTHERWISE...TEMPS
WILL BE ADJUSTED TO ACCOUNT FOR TEMPORARY COOL-DOWN IN PLACES
AFFECTED BY PERSISTENT SHOWERS.

REMAINDER OF PREVIOUS DISCUSSION...

AS OF 230 PM EDT...COVERAGE HAS ONCE AGAIN FILLED IN RAPIDLY THIS
AFTN IN THE MOST UPSLOPE PREFERRED LOCATIONS OF THE SW CWFA. GIVEN
THE DUAL POL RADAR RAINFALL RATES OF 1 TO 2 INCHES PER HOUR...THE
RECENT RAINFALL IN THIS AREA...AND THE APPARENT TRAINING SETTING
UP...A FLASH FLOOD WATCH BEEN POSTED FOR THE MOST PRONE LOCATIONS
THROUGH THIS EVENING.

OTHERWISE...A SURFACE COLD FRONT REMAINS DRAPED ALONG THE OH VALLEY
THIS AFTN...WITH FLAT RIDGING ALOFT IN PLACE FARTHER SOUTH. UPPER
SUPPORT WILL BE HARD TO FIND LATE THIS AFTN THROUGH TONIGHT...BUT
THE AFORE MENTIONED UPSLOPE...ADDITIONAL WESTERLY UPSLOPE NEAR THE
SPINE OF THE SRN APPALACHIANS AND VERY LOW LFC HEIGHTS WILL ALLOW
COVERAGE TO INCREASE AND EXPAND EASTWARD. THE SPC STORM SCALE
ENSEMBLE OF OPPORTUNITY DEPICTS THE BEST CHANCES ACROSS THE MTNS
THROUGH THE LATE AFTERNOON...WITH A SECONDARY MAXIMA EXTENDING OUT
ACROSS THE NC FOOTHILLS INTO THE PIEDMONT TOWARD EVENING. WILL LEAN
THE POP FORECAST IN THIS DIRECTION.

WEAK H5 VORT LOBES RIDING NE OVER THE SHALLOW SE RIDGE WILL BRUSH
THE NRN TIER OF THE FORECAST AREA LATER TONIGHT THROUGH SAT...WITH
WESTERLY FLOW IMPROVING VERY SLIGHTLY THROUGH SAT AFTN. LOW LEVEL
WINDS SHOULD REMAIN MORE SW EAST OF THE MTNS TO CREATE A CONVERGENCE
REGION ALONG THE ERN SLOPES. COVERAGE SHOULD BE A BIT BETTER SAT
THAN TODAY AS STEERING WINDS INCREASE SLIGHTLY. IN ADDITION...THE
COLD FRONT WILL SAG SE TOWARD THE FORECAST AREA AND ALLOW ALREADY
HIGH PWAT VALUES AROUND 2 INCHES TO POOL FURTHER ACROSS THE AREA.
ANOTHER FLASH FLOOD WATCH MAY NEED TO START ON SAT AFTN...BUT WILL
JUST ADDRESS THE ONGOING WATCH AT THIS POINT AND LEAVE ANY LATER
POSTING TO LATER FORECASTS. LAPSE RATES MAY ALSO IMPROVE JUST ENOUGH
ON SAT ALONG WITH THE IMPROVING FLOW TO CREATE A SLIGHTLY BETTER
CHANCE OF WET MICROBURSTS OR ISOLD MULTI CELL SEVERE. WILL CONTINUE
TO LEAN TOWARD BIAS CORRECTED GUIDANCE ON TEMPS.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
AS OF 200 PM EDT FRIDAY...BY SATURDAY EVENING...CONTINUED WEST
SOUTHWEST FLOW ACROSS THE HIGH TERRAIN ENHANCING UPSLOPE FLOW
INDUCED CONVECTION...AND MODEST INSTABILITY ACROSS THE PIEDMONT
REGION WILL KEEP RAIN CHANCES ELEVATED INTO SUNDAY MORNING.
MEANWHILE...APPROACHING EAST/WEST ORIENTED COLD FRONT DRAPED ACROSS
KY/VA WILL CONTINUE MIGRATING TO THE SOUTH AND ENTER THE NORTHERN
ZONES BY AROUND NOON SUNDAY.  AS AMPLE MOISTURE THROUGH THE COLUMN
REMAINS IN PLACE...WEAK CONVERGENCE ALONG THE FRONTAL BOUNDARY WILL
PROVIDE A FOCUS FOR CONVECTION DURING THE DAY SUNDAY.  CARRIED
LIKELY POPS ACROSS MUCH OF WESTERN NC...WITH SLIGHTLY LOWER SOLID
CHANCE POPS ELSEWHERE.  PRECIPITABLE WATER VALUES NEARING 150
PERCENT OF NORMAL WILL PRESENT SOME THREAT FOR HEAVY RAINFALL.  THIS
COMBINED WITH WEAK STEERING FLOW COULD LEAD TO INCREASED THREATS
FOR ISOLATED FLASH FLOODING...ESPECIALLY ACROSS THE
FOOTHILLS/MOUNTAINS WERE UPSLOPE FLOW WILL ENHANCE CONVECTION.  AS
THE FRONT SLOWLY MIGRATES SOUTHWARD INTO SUNDAY EVENING...SCATTERED
CONVECTION WILL FOLLOW.  BULK SHEAR ON THE ORDER OF 20-25KTS ALONG
THE BOUNDARY WILL PROVIDE SOME SUPPORT FOR ORGANIZATION.
THEREFORE...SOME THUNDERSTORMS DURING THE LATE AFTERNOON HOURS COULD
REACH SEVERE LIMITS AS THE BOUNDARY PUSHES FURTHER INTO AREAS THAT
WILL HAVE RECEIVED ADDITIONAL HEATING...THUS GREATER INSTABILITY.
AS HEATING FADES BEYOND SUNSET...EXPECTING COVERAGE TO SLOWLY
DIMINISH OUTSIDE OF AREAS IMMEDIATELY ADJACENT TO THE FRONT...WHICH
WILL PERSIST UNTIL AROUND DAYBREAK ON MONDAY.  TEMPERATURES ON
SUNDAY WILL REMAIN AT OR NEAR NORMAL FOR AREAS ALONG AND AHEAD OF
THE ADVANCING FRONTAL BOUNDARY...AND A FEW DEGREES BELOW NORMAL
ELSEWHERE.

AS FOR MONDAY...THE FRONTAL BOUNDARY WILL HAVE MOVED INTO THE
MIDLANDS/LOWCOUNTRY BY LATE MORNING ALLOWING FOR SLIGHTLY DRIER AIR
TO BRIEFLY SETTLE IN ACROSS THE REGION.  HOWEVER THAT WONT LAST LONG
AS WEAK HIGH PRESSURE ALONG THE FL GULF COAST WILL ADVECT WARM MOIST
AIR INTO THE REGION BEHIND THE FRONTAL BOUNDARY. MODEL GUIDANCE
SEEMS TO BE IN GOOD AGREEMENT WITH REGARDS TO SHOWERS AND OR
THUNDERSTORMS INITIATING ALONG THE SOUTHWARD FACING SLOPES OF THE
HIGH TERRAIN AS UPSLOPE FLOW REORGANIZES.  THUS...CARRIED HIGH END
CHANCE POPS ALONG THE MOUNTAINS WITH SLIGHTLY LOWER CHANCE POPS
ACROSS NORTHEAST GA...THE UPSTATE OF SC...AND THE NC PIEDMONT WHERE
ACTIVITY WILL BE MORE THERMODYNAMICALLY DEPENDENT.  TEMPERATURES ON
MONDAY WILL BE A FEW DEGREES BELOW NORMAL.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
AS OF 200 PM FRIDAY...MODELS AGREE THAT THE PATTERN FOR THE EXTENDED
PERIOD WILL REMAIN UNSETTLED. THE COLD FRONT EXPECTED TO AFFECT THE
AREA THIS WEEKEND WILL STALL OUT OVER THE CWA MONDAY AND
TUESDAY...BEFORE SLOWLY DRIFTING SOUTHWARD TUESDAY NIGHT. A LARGE
CANADIAN HIGH PRESSURE BUILDS IN TUESDAY AND WEDNESDAY...AND BOTH
THE EC AND GFS HAVE THE HIGH PUSHING A WEAK FRONTAL BOUNDARY THROUGH
ON WEDNESDAY TRIGGERING SHOWERS AND THUNDERSTORMS DURING THE DAY AND
OVERNIGHT. THE FRONTAL PASSAGE IS ALSO MARKED BY THE PASSAGE OF AN
UPPER LEVEL TROUGH...FURTHER INCREASING SHOWER AND THUNDERSTORM
POTENTIAL WEDNESDAY. BY THURSDAY...NORTHWESTERLY FLOW TRANSPORTS
DRIER AIR TOWARDS THE CWA...BUT ALL AREAS EAST OF THE APPALACHIANS
REMAIN QUITE MOIST...ONLY ALLOWING FOR A SLIGHT DECREASE IN POPS.
ANOTHER UPPER LEVEL IMPULSE APPEARS TO SWING THROUGH FRIDAY AND
SATURDAY WHILE THE CWA COMES UNDER INCREASING INFLUENCE BY THE
BERMUDA HIGH...SO FEATURE AT LEAST CHANCE POPS THROUGH THE END OF
THE EXTENDED. THE PERIOD STARTS WITH HIGHS SLIGHTLY BELOW
AVERAGE...DECREASING TO AROUND 10 DEGREES BELOW AVERAGE BY THE END
OF NEXT WEEK.

&&

.AVIATION /21Z FRIDAY THROUGH WEDNESDAY/...
AT KCLT...WEAK CONVECTION DEVELOPING IN THE VICINITY HAS YET TO
PRODUCE MUCH LIGHTNING...BUT CONVECTION ALLOWING MODELS ARE
DEPICTING BETTER COVERAGE DEVELOPING AROUND THE AIRFIELD BY 20Z.
HAVE THUS MOVED TEMPO TSRA TIMING UP A BIT TO ACCOUNT FOR THIS.
ANTICIPATE A FAIRLY RAPID END TO CONVECTION THIS EVENING...WITH
MAINLY VFR CONDITIONS EXPECTED FOR THE OVERNIGHT HOURS UNLESS
TREMENDOUS RAIN FALLS ON THE AIRFIELD. SHOULD SEE MORNING MVFR LEVEL
CUMULUS DEVELOP ONCE AGAIN...WITH SHOWER COVERAGE STEADILY FILLING
IN FROM THE WEST TOWARD THE END OF THE PERIOD. WILL HOLD OFF ON ANY
THUNDER UNTIL AFTER 18Z.

ELSEWHERE...THE BEST CONVECTIVE COVERAGE HAS FIRED IN THE UPSLOPE
PREFERRED LOCATIONS THIS AFTN. EXPANDING COVERAGE SHOULD PROVIDE
TEMPO TSRA COVERAGE MAINLY DURING 19Z TO 23Z...IF NOT SOONER.
ANTICIPATE A QUICK END TO THE CONVECTION AGAIN THIS EVENING.
ADDITIONAL PRECIPITATION WILL LIKELY DEVELOP WEST OF THE MTNS
OVERNIGHT BUT SHOULD STAY N AND W OF KAVL TO KHKY THROUGH SAT
MORNING. EXPECT A RETURN OF MVFR LEVEL CIGS EARLY SAT...WITH BRIEF
IFR CONDITIONS POSSIBLE MAINLY KAVL TO KHKY AROUND DAYBREAK. WILL
ONLY MENTION VCSH FOR THE END OF THE TAF CYCLE...BUT ADDITIONAL
THUNDER IS EXPECTED TOWARD THE END OF THE TAF PERIOD THROUGH SAT
AFTN. EXPECT STEADY SW FLOW THROUGHOUT...EXCEPT MORE VARIABLE AT
KAVL AND NEAR ANY TSTMS.

OUTLOOK...DEEP MOISTURE AND HIGH COVERAGE OF SHRA/TSRA WILL CONTINUE
THROUGH SUNDAY AS A COLD FRONT MOVES SWD INTO THE REGION. THE
BOUNDARY MAY LINGER IN THE AREA THROUGH EARLY NEXT WEEK...YIELDING
DIURNAL SCT TSTMS AND OVERNIGHT RESTRICTIONS.

CONFIDENCE TABLE...

            21-03Z        03-09Z        09-15Z        15-21Z
KCLT       HIGH 100%     HIGH 100%     HIGH 100%     HIGH  89%
KGSP       HIGH 100%     HIGH 100%     MED   75%     HIGH  89%
KAVL       HIGH  86%     HIGH  94%     MED   75%     MED   78%
KHKY       HIGH 100%     HIGH 100%     MED   68%     HIGH 100%
KGMU       HIGH 100%     HIGH 100%     MED   75%     HIGH  89%
KAND       HIGH 100%     HIGH 100%     MED   65%     HIGH  82%

THE PERCENTAGE REFLECTS THE NUMBER OF GUIDANCE MEMBERS AGREEING
WITH THE SCHEDULED TAF ISSUANCE FLIGHT RULE CATEGORY. COMPLETE
HOURLY EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLES AND ENSEMBLE
FORECASTS ARE AVAILABLE AT THE FOLLOWING LINK: (MUST BE LOWER CASE)

WWW.WEATHER.GOV/GSP/AVIATION_TABLES

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...FLASH FLOOD WATCH UNTIL MIDNIGHT EDT TONIGHT FOR GAZ010-017-
     018.
NC...FLASH FLOOD WATCH UNTIL MIDNIGHT EDT TONIGHT FOR NCZ062>065.
SC...FLASH FLOOD WATCH UNTIL MIDNIGHT EDT TONIGHT FOR SCZ001>005.

&&

SYNOPSIS...CDG
NEAR TERM...HG/PM
SHORT TERM...CDG
LONG TERM...VISIN
AVIATION...HG
Hazardous weather outlook, Aug 9, 1:21 PM EST, 3 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
221 PM EDT FRI AUG 9 2013

GAZ010-017-018-NCZ062>065-SCZ001>005-101830-
RABUN-HABERSHAM-STEPHENS-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-
221 PM EDT FRI AUG 9 2013

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

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

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS WILL DEVELOP ACROSS THE REGION
THIS WEEKEND. THE THUNDERSTORM COVERAGE WILL PEAK DURING THE
AFTERNOON AND EVENING HOURS. A COUPLE OF THESE STORMS COULD
PRODUCE FLASH FLOODING AND DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ026-028-029-NCZ033-035>037-048>053-056>059-068>072-082-501>510-
SCZ006>014-019-101830-
FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-
MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM-
NORTHERN JACKSON-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-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
221 PM EDT FRI AUG 9 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE
REGION THIS AFTERNOON INTO THIS EVENING. THE MAIN THREATS WILL BE
LOCALLY TORRENTIAL RAINFALL... POSSIBLY RESULTING IN ISOLATED
FLASH FLOODING. OCCASIONAL CLOUD TO GROUND LIGHTNING STRIKES AND
BRIEFLY GUSTY WINDS WILL BE POSSIBLE AS WELL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS WILL DEVELOP ACROSS THE REGION
THIS WEEKEND. THE THUNDERSTORM COVERAGE WILL PEAK DURING THE
AFTERNOON AND EVENING HOURS. A COUPLE OF THESE STORMS COULD
PRODUCE FLASH FLOODING AND DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

NONE.

CDG

In the hours before

Special weather statement, Aug 9, 2:54 PM EST, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
354 PM EDT FRI AUG 9 2013

SCZ007-008-012-013-092045-
CHEROKEE-LAURENS-SPARTANBURG-UNION-
354 PM EDT FRI AUG 9 2013

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN LAURENS...NORTHWESTERN
UNION...SPARTANBURG AND WESTERN CHEROKEE COUNTIES THROUGH 445 PM
EDT...

AT 351 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES EAST OF
FINGERVILLE TO 3 MILES SOUTH OF WOODRUFF...MOVING EAST AT 20 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  SPARTANBURG...
  CHESNEE...
  MAYO...
  COWPENS...
  PACOLET...
  THICKETTY...

WIND GUSTS OF 40 TO 50 MPH...AND TORRENTIAL RAIN ARE EXPECTED WITH
THESE STORMS.

THE COMBINATION OF GUSTY WINDS AND WET SOIL CONDITIONS WILL CAUSE
SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDER AN
INTERIOR ROOM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3463 8164 3461 8214 3518 8204 3517 8154

ARK
Special weather statement, Aug 9, 3:10 PM EST, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
410 PM EDT FRI AUG 9 2013

NCZ033-501-502-092100-
AVERY-CALDWELL MOUNTAINS-GREATER CALDWELL-
410 PM EDT FRI AUG 9 2013

...A STRONG THUNDERSTORM WILL AFFECT EASTERN AVERY AND NORTHERN
CALDWELL COUNTIES THROUGH 500 PM EDT...

AT 408 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR UPTON...OR 3 MILES SOUTHWEST OF BLOWING
ROCK...MOVING EAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  PATTERSON...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3610 8151 3610 8146 3608 8144 3608 8142
      3607 8140 3597 8140 3600 8181 3611 8181
      3613 8173 3613 8155

ARK
Special weather statement, Aug 9, 3:12 PM EST, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
412 PM EDT FRI AUG 9 2013

NCZ057-092100-
ROWAN-
412 PM EDT FRI AUG 9 2013

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ROWAN COUNTY
THROUGH 500 PM EDT...

AT 408 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR FAITH...OR 6 MILES SOUTHEAST OF SALISBURY...
MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  ROCKWELL...
  HIGH ROCK LAKE...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3550 8053 3568 8054 3570 8033 3568 8033
      3567 8030 3564 8029 3564 8026 3558 8020
      3555 8020 3552 8018 3550 8018

ARK
Special weather statement, Aug 9, 3:25 PM EST, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
425 PM EDT FRI AUG 9 2013

NCZ056-069-504-092115-
CATAWBA-GREATER BURKE-LINCOLN-
425 PM EDT FRI AUG 9 2013

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN LINCOLN...
SOUTHEASTERN BURKE AND WESTERN CATAWBA COUNTIES THROUGH 515 PM EDT...

AT 421 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR COOKSVILLE...OR 11 MILES SOUTHWEST OF
HICKORY...MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  LONGVIEW...
  NEWTON...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3560 8111 3549 8148 3566 8158 3581 8127
      3581 8123

ARK
Special weather statement, Aug 9, 3:56 PM EST, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
456 PM EDT FRI AUG 9 2013

NCZ068-508-092145-
CLEVELAND-GREATER RUTHERFORD-
456 PM EDT FRI AUG 9 2013

...A STRONG THUNDERSTORM WILL AFFECT EASTERN RUTHERFORD AND NORTHERN
CLEVELAND COUNTIES THROUGH 545 PM EDT...

AT 451 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTHWEST OF LATTIMORE...OR 10 MILES
NORTHWEST OF SHELBY...MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  POLKVILLE...
  LAWNDALE...
  CASAR...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3556 8158 3557 8154 3555 8151 3552 8151
      3541 8145 3525 8167 3537 8183 3557 8166
      3557 8160

ARK
Special weather statement, Aug 9, 4:23 PM EST, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
523 PM EDT FRI AUG 9 2013

NCZ036-056-069-092215-
CATAWBA-IREDELL-LINCOLN-
523 PM EDT FRI AUG 9 2013

...HEAVY RAINFALL WILL AFFECT LINCOLN...SOUTHEASTERN CATAWBA AND
SOUTHWESTERN IREDELL COUNTIES THROUGH 615 PM EDT...

AT 517 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTH OF MAIDEN...OR 5 MILES NORTHEAST OF
LINCOLNTON...MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  NEWTON...
  CONOVER...
  CLAREMONT...
  DENVER...
  LOOKOUT SHOALS LAKE...

TORRENTIAL RAIN IS EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3585 8099 3553 8080 3551 8090 3552 8090
      3550 8093 3541 8128 3542 8145 3554 8152
      3555 8151

ARK

The radar

The Roanoke radar (KFCX), 127 km away, was scanning. The volume nearest the first event began at 21:36 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Iredell

When
August 9, 4:35 PM EST
Where
Iredell County, 2.76 mi S of Union Grove
Measured
55 kt (63 mph) estimated gust
Property damage
$5,000
Reported by
Emergency Manager
Coordinates
35.990, -80.870

Several trees were blown down on Semper Fidelis Rd, with one large tree on a house. In addition, a couple of outbuildings were damaged with tin roof material blown several hundred feet. Several trees were also blow down on Jennings Rd in the same area.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in North Carolina in 2013Every state in 2013This day in weather historyWarnings in North Carolina, August 2013

Sources

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: 473464.