Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Wilmington, NC

August 20, 2011New Hanover County, North Carolina

NWS Wilmington, NC issued this special weather statement at Aug 20, 2011, 4:40 PM EDT for New Hanover County, North Carolina. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 20, 2011, 4:40 PM EDT (20:40 UTC)
Expired
Aug 20, 2011, 5:30 PM EDT
In force
50 min
Issued by
NWS Wilmington, NC

County New Hanover County, NC

The radar

The Wilmington radar (KLTX), 54 km from the middle of the area, began a volume at 20:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.7 hours before the alert went out and 244 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2011-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 748 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2011-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
748 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1183 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, NC wrote its last area forecast discussion before this special weather statement went out at Aug 20, 4:32 PM EDT, 8 minutes earlier.

Area forecast discussion, Aug 20, 4:32 PM EDT, 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
432 PM EDT SAT AUG 20 2011

.SYNOPSIS...
A PIEDMONT SURFACE TROUGH WILL GRADUALLY BECOME ESTABLISHED INLAND
THROUGH THE WEEKEND...PROVIDING A FOCUS FOR A FEW THUNDERSTORMS.
A COLD FRONT WILL MOVE THROUGH THE REGION LATE MONDAY INTO TUESDAY
AND STALL TO OUR SOUTH. EXPECT CONVECTION TO BECOME QUITE ACTIVE
ACROSS THE REGION DURING ITS PASSAGE. HIGH PRESSURE WILL FOLLOW AND
BUILD INTO THE CAROLINAS TUESDAY THROUGH THURSDAY.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
AS OF 430 PM SATURDAY...JUST ISSUED A QUICK UPDATE TO INCREASE POPS
TO 50-70 PERCENT ACROSS THE PEE DEE REGION OF SOUTH CAROLINA AND IN
NORTH CAROLINA'S CAPE FEAR REGION. SLOW MOVING THUNDERSTORMS ARE
DROPPING TORRENTIAL RAINFALL AMOUNTS OVER THE LOWER CAPE FEAR RIVER
AREA NEAR AND JUST SOUTH OF DOWNTOWN WILMINGTON AND WE ARE
MONITORING THIS AREA CLOSE FOR POSSIBLE FLOOD ADVISORIES/WARNINGS.
WITH LITTLE UPPER SUPPORT TO SUSTAIN STORMS AFTER SUNSET WE WILL
CONTINUE TO FORECAST A RAPID DISSIPATION OF ACTIVITY IN THE 7-9 PM
TIME FRAME. TRA

PREVIOUS DISCUSSION FROM 3 PM FOLLOWS...
SLOW MOVING TSTMS OVER OUR VERY SOUTHERN  ZONES APPEAR TO BE ALONG
THE NORTHERN REACHES OF ENHANCED PRECIPITABLE WATER AND SURFACE
BASED CAPE AXES. SLUGGISH STORM MOTION RESULTING IN IMPRESSIVE
ESTIMATED RAINFALL AMOUNTS...BUT AS OF THIS WRITING NO REPORTS OF
FLOODING FROM THE 911 CENTERS. ALOFT NOT SEEING ANYTHING THAT WOULD
SUSTAIN THIS ACTIVITY VERY LONG BEYOND MID-EVENING AND BELIEVE
DIURNAL COOLING WILL REMOVE SOME OF THE STEAM FROM THIS CONVECTION.
VAPOR ANIMATIONS SHOW RELATIVELY DRY AIR ALOFT AND RH TIME HEIGHT
SECTION SHOW FAIRLY GOOD SUBSIDENCE ABOVE 600MB THIS EVENING. THUS
THE IDEA OF GRADUALLY TAPERING OFF RAINFALL CHANCES OVERNIGHT
APPEARS REASONABLE. SATELLITE TRENDS SUGGEST MAINLY CLEAR INTO THE
OVERNIGHT HOURS IN LIGHT SW BOUNDARY LAYER FLOW. COULD SEE PATCHY
MIST/FOG BY DAYBREAK BUT NOT DENSE ENOUGH TO PLACE IN WIDESPREAD
FASHION IN THE GRIDS...BUT WILL INSERT IN AREAS THAT HAVE HAD GOOD
RAIN AMOUNTS IN THE LAST 24 HOURS...NAMELY THE VERY SOUTHERN ZONES
AND PORTIONS OF COLUMBUS COUNTY. FOR MIN TEMPS WITH AT LEAST PARTLY
CLEAR SKIES...SHOOTING FOR LOW 70S COAST TO THE VERY UPPER 60S
INLAND LOCATIONS.

&&

.SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/...
AS OF 3 PM SATURDAY...VERY LOW AMPLITUDE TROUGHINESS WILL BE
SITUATED ACRS THE REGION ON SUNDAY. WEAK SHORTWAVES WILL BE EMBEDDED
IN THIS FLOW...THE STRONGEST OF WHICH WILL BE QUITE LATE IN THE DAY
AND OVER NORTHERNMOST ZONES. LOW COVERAGE OF STORMS APPEARS
WARRANTED OVER WESTERN ZONES AS A RESULT. IT ALSO SEEMS PLAUSIBLE
THAT THE SEA BREEZE SHOULD BE ABLE TO TOUCH OFF ISOLATED CONVECTION.
TEMPERATURES WILL BE CLOSE TO OR A FEW DEGREES ABOVE SEASONABLE
NORMS. THE AMPLITUDE OF THE MID LEVEL TROUGH WILL INCREASE SLIGHTLY
ON MONDAY AND A SURFACE COLD FRONT WILL APPROACH FROM THE NORTHWEST.
WRF LOOKS PRETTY AGGRESSIVE WITH MOISTURE RIBBON AND RAINFALL
CHANCES/AMOUNTS ESPECIALLY GIVEN THE LACK OF BACKING IN THE MID
LEVELS PRECLUDING VERY DEEP MOISTURE. FORECAST POPS CURRENTLY
SOLIDLY IN THE CHANCE RANGE AND SOME UPWARD ADJUSTMENT APPEARS
LIKELY ONCE FAVORED AREAS CAN BE PICKED OUT (E.G. THE COAST LOOKS
GOOD).

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
AS OF 3 PM SATURDAY...COLD FRONT SOUTH OF THE AREA TUE/WED WILL LIFT
BACK NORTH AS IT DISSIPATES WED NIGHT INTO THU. DRY AIR AND
SUBSIDENCE ON TUE WILL LIMIT PRECIP CHANCES. MOISTURE STARTS TO
RETURN WED AS SURFACE HIGH TO THE NORTH SHIFTS OFFSHORE AND LOW
LEVEL FLOW BECOMES ONSHORE. WEAK UPPER TROUGH STARTS TO TAKE SHAPE
WED INTO THU AND COMBINED WITH INCREASING LOW LEVEL MOISTURE WILL
LEAD TO AN INCREASE IN PRECIP CHANCES..ESPECIALLY THU. LATE IN THE
PERIOD PLENTY OF UNCERTAINTY EXISTS IN REGARDS TO A POTENTIAL
TROPICAL SYSTEM. MOST OF THE GUIDANCE TAKES THE SYSTEM INTO FLORIDA
AND INTO THE SOUTHEASTERN US AT THE END OF THE PERIOD. ALTHOUGH THE
SYSTEM IS NOT LIKELY TO IMPACT THE REGION DURING THE
PERIOD...MOISTURE FROM THE SYSTEM MAY DRASTICALLY ALTER THE FORECAST
LATE IN THE PERIOD. CURRENTLY HAVE CHC POP BOTH FRI AND SAT BUT
CONFIDENCE IS VERY LOW. HIGHS START OUT NEAR CLIMO...BUT LATE IN THE
PERIOD WILL FALL BELOW CLIMO. LOWS WILL BE ABOVE TO WELL ABOVE CLIMO
THROUGH THE PERIOD.

&&

.AVIATION /18Z SATURDAY THROUGH WEDNESDAY/...
AS OF 18Z...HAVE BACKED OFF A BIT ON THE TIMING AND COVERAGE OF
CONVECTION TODAY. WATER VAPOR IMAGERY SHOWS A PATCH OF DRIER AIR
THAT WILL MOVE ACROSS OUR CWA THIS AFTERNOON. STILL THINK WE WILL
SEE ISOLATED TO SCATTERED CONVECTION...MAINLY FOCUSED ALONG THE SEA
BREEZE. WINDS WILL BECOME SOUTHERLY SOON AFTER TAF ISSUANCE WITH THE
SEA BREEZE RESULTANT. OVERNIGHT...SOME MVFR IS EXPECTED JUST BEFORE
SUNRISE. MOISTURE PROFILES ARE MARGINAL...SO CONFIDENCE IS RATHER
LOW. SUNDAY...BECOMING VFR WITH CONVECTION EXPECTED IN THE
AFTERNOON...PROBABLY AFTER TAF VALID PERIOD.

EXTENDED OUTLOOK...SCATTERED SHRA/TSRA THROUGH THE WEEKEND INTO
EARLY NEXT WEEK. OTHERWISE EXPECT VFR.

&&

.MARINE...
NEAR TERM/THROUGH TONIGHT/...
AS OF 3PM SATURDAY...NO WIND OR WAVE HAZARDS EXPECTED ON THE WATERS
OUTSIDE OF A SLIGHT CHANCE OF A TSTM OVER THE SC WATERS. OUTSIDE OF
STORMS...SEAS 2-3 FEET IN A MIX OF S TO N MOVING LIGHT CHOP AND
AROUND 2 FEET OF LONGER PERIOD OF SE SWELL WAVES. BERMUDA RIDGE WILL
CONTINUE TO GRADUALLY EXPAND WESTWARD TOWARD THE COAST AND SUSPECT
WINDS WILL TEND MORE TO A SW COMPONENT AT A STEADY 10 KT OR SO
TNGT.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/...
AS OF 3 PM SATURDAY...SOUTH TO SOUTHWESTERLY FLOW EXPECTED ON SUNDAY
AS THE AREA LIES BETWIXT THE BERMUDA HIGH AND A PIEDMONT TROUGH.
SEAS WILL AVERAGE 2 TO 3 FT. A COLD FRONT ENTERS THE COASTAL PLAIN
ON MONDAY TIGHTENING THE GRADIENT BY ABOUT A CATEGORY. THIS MAY
YIELD SOME 4 FT SEAS WAY OUT ALONG THE OUTSIDE EDGE OF THE FCST ZONE
ESPECIALLY OVER NORTHERN ZONES AND ALONG FRYING PAN SHOALS.

LONG TERM /TUESDAY THROUGH THURSDAY/...
AS OF 3 PM SATURDAY...NORTHEAST TO EAST FLOW ACROSS THE WATERS TUE
INTO WED WILL BECOME SOUTHEAST WED NIGHT INTO THU AS THE REMAINS OF
DISSIPATING FRONT LIFTS NORTH ACROSS THE WATERS. DO NOT ANTICIPATE
WIND SPEEDS THAT MUCH ABOVE 10 KT THROUGH THE PERIOD. SEAS AROUND 2
FT THROUGH THE PERIOD.

&&

.ILM WATCHES/WARNINGS/ADVISORIES...
SC...NONE.
NC...NONE.
MARINE...NONE.

&&

NEAR TERM...8
SHORT TERM...MBB
LONG TERM...III
AVIATION...43/8
Hazardous weather outlook, Aug 20, 3:47 PM EDT, 53 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
347 PM EDT SAT AUG 20 2011

AMZ250-252-254-256-NCZ087-096-099-105>107-109-110-SCZ053>056-212000-
SURF CITY TO CAPE FEAR NC OUT 20 NM-
CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM-
LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM-
MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM-ROBESON-BLADEN-
COLUMBUS-INLAND PENDER-COASTAL PENDER-INLAND NEW HANOVER-
INLAND BRUNSWICK-COASTAL BRUNSWICK-INLAND HORRY-COASTAL HORRY-
INLAND GEORGETOWN-COASTAL GEORGETOWN-
347 PM EDT SAT AUG 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL
WATERS...SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ108-212000-
COASTAL NEW HANOVER-
347 PM EDT SAT AUG 20 2011

...MODERATE RISK OF RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH 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.

   MODERATE RISK OF RIP CURRENTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

SCZ017-023-024-032-033-039-212000-
MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-WILLIAMSBURG-
347 PM EDT SAT AUG 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SLOW MOVING THUNDERSTORMS WILL BE CAPABLE OF PRODUCING LOCALIZED
STANDING WATER AND MINOR FLOODING OF ROADWAYS...DITCHES AND LOW-
LYING AREAS THROUGH THE EVENING HOURS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

8

In the hours before

Special weather statement, Aug 20, 1:25 PM EDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
125 PM EDT SAT AUG 20 2011

SCZ039-201830-
WILLIAMSBURG-
125 PM EDT SAT AUG 20 2011

...A STRONG THUNDERSTORM WILL MOVE ACROSS WILLIAMSBURG COUNTY THROUGH
230 PM EDT...

AT 125 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR
TRIO...MOVING EAST AT 5 MPH.

SOME LOCATIONS IMPACTED INCLUDE EARLE...TRIO...AND HIGHWAY 521
BETWEEN ANDREWS AND SALTERS.

HAZARDS INCLUDE...
SMALL HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3341 7976 3354 7977 3360 7961 3350 7956
      3346 7957 3345 7959 3343 7959 3340 7962
TIME...MOT...LOC 1725Z 263DEG 4KT 3351 7969

III
Special weather statement, Aug 20, 1:57 PM EDT, 2 hours 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
157 PM EDT SAT AUG 20 2011

SCZ039-201900-
WILLIAMSBURG-
157 PM EDT SAT AUG 20 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS WILLIAMSBURG COUNTY THROUGH
300 PM EDT...

AT 155 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS NEAR
KINGSTREE...MOVING NORTHEAST AT 10 MPH.

SOME LOCATIONS IMPACTED INCLUDE KINGSTREE...SALTERS...
GREELEYVILLE...LANE AND HIGHWAYS 52 AND 521.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3375 7964 3360 7962 3354 7977 3351 8000
      3364 8001
TIME...MOT...LOC 1755Z 244DEG 11KT 3362 7984

III
Special weather statement, Aug 20, 3:05 PM EDT, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
305 PM EDT SAT AUG 20 2011

SCZ032-202000-
FLORENCE-
305 PM EDT SAT AUG 20 2011

...A STRONG THUNDERSTORM WILL MOVE ACROSS FLORENCE COUNTY THROUGH 400
PM EDT...

AT 305 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
COWARD...OR ABOUT 7 MILES NORTH OF LAKE CITY...MOVING EAST AT 10 MPH.

SOME LOCATIONS IMPACTED INCLUDE LAKE CITY...EFFINGHAM...EVERGREEN...
FRIENDFIELD...HANNAH...HYMAN...NEW HOPE...PAMPLICO...COWARD AND
SCRANTON.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

FREQUENT CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL CAUSE MINOR
FLOODING OF LOW LYING AREAS INCLUDING DITCHES...CREEKS...ROADWAYS AND
AREAS OF POOR DRAINAGE. AVOID THESE AREAS AND DO NOT CROSS FLOODED
ROADS. MOTORISTS SHOULD ALSO REDUCE DRIVING SPEEDS TO AVOID
HYDROPLANING.

&&

LAT...LON 3412 7954 3380 7949 3388 7983 3405 7986
TIME...MOT...LOC 1905Z 266DEG 7KT 3396 7974

WEISS
Special weather statement, Aug 20, 3:33 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
333 PM EDT SAT AUG 20 2011

SCZ017-023-024-202030-
DARLINGTON-DILLON-MARLBORO-
333 PM EDT SAT AUG 20 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS DILLON...MARLBORO AND
DARLINGTON COUNTIES THROUGH 430 PM EDT...

AT 332 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER
BROWNSVILLE AND MECHANICSVILLE...MOVING NORTHEAST AT 10 MPH.

SOME LOCATIONS IMPACTED INCLUDE DILLON...BINGHAM...BROWNSVILLE...
CLIO...DUNBAR...HAMER...LITTLE ROCK...MCCOLL...MECHANICSVILLE...
MINTURN...OAK GROVE AND SOUTH OF THE BORDER.

HAZARDS INCLUDE...
SMALL HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3469 7953 3445 7925 3428 7959 3430 7962
      3430 7963 3431 7967 3429 7968 3429 7970
      3435 7980
TIME...MOT...LOC 1932Z 222DEG 16KT 3435 7965

III
Special weather statement, Aug 20, 4:04 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
404 PM EDT SAT AUG 20 2011

NCZ107>109-202100-
COASTAL NEW HANOVER-INLAND BRUNSWICK-INLAND NEW HANOVER-
404 PM EDT SAT AUG 20 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS EASTERN BRUNSWICK AND
SOUTHERN NEW HANOVER COUNTIES THROUGH 500 PM EDT...

AT 403 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER
SILVER LAKE...OR ABOUT 6 MILES SOUTHWEST OF WILMINGTON...MOVING NORTH
AT 5 MPH.

SOME LOCATIONS IMPACTED INCLUDE
LELAND...WILMINGTON...MASONBORO...MYRTLE GROVE...SILVER
LAKE...WOODBURN...BELVILLE...NAVASSA AND ALONG HIGHWAY 133 BETWEEN
SUNNY POINT AND LELAND.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3413 7786 3409 7794 3410 7794 3407 7797
      3409 7804 3428 7808 3423 7786
TIME...MOT...LOC 2003Z 189DEG 4KT 3414 7798

III
Special weather statement, Aug 20, 4:40 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
440 PM EDT SAT AUG 20 2011

NCZ105-107-202130-
INLAND NEW HANOVER-INLAND PENDER-
440 PM EDT SAT AUG 20 2011

...A STRONG THUNDERSTORM WILL MOVE ACROSS NEW HANOVER AND PENDER
COUNTIES THROUGH 530 PM EDT...

AT 440 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
WRIGHTSBORO...OR ABOUT OVER WILMINGTON...MOVING NORTH AT 10 MPH.

SOME LOCATIONS IMPACTED INCLUDE CASTLE HAYNE...SMITH CREEK...
WINDEMERE AND WRIGHTSBORO.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3422 7784 3426 7799 3427 7800 3428 7799
      3428 7800 3429 7801 3432 7800 3432 7803
      3433 7803 3434 7807 3440 7806 3438 7780
TIME...MOT...LOC 2040Z 161DEG 10KT 3428 7791

III

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 1:25 PM EDTSpecial Weather StatementILMWilliamsburg65 min
Aug 20, 1:57 PM EDTSpecial Weather StatementILMWilliamsburg63 min
Aug 20, 3:05 PM EDTSpecial Weather StatementILMFlorence55 min
Aug 20, 3:33 PM EDTSpecial Weather StatementILMDillon57 min
Aug 20, 4:48 PM EDTSpecial Weather StatementILMHorry42 min
Aug 19, 11:01 PM EDTSpecial Weather StatementILMColumbus, Robeson59 min
Aug 19, 11:28 PM EDTSevere Thunderstorm WarningILMBladen, Columbus, Robeson42 min
Aug 19, 11:40 PM EDTAreal Flood AdvisoryILMBladen, Columbus, Robeson2 hr
Aug 20, 12:01 AM EDTSpecial Weather StatementILMBladen, Columbus59 min
Aug 20, 1:02 AM EDTSpecial Weather StatementILMBrunswick, Columbus58 min
Aug 20, 1:41 AM EDTSpecial Weather StatementILMRobeson94 min
Aug 20, 1:47 AM EDTAreal Flood WarningILMRobeson3 hr
Aug 20, 3:14 AM EDTAreal Flood WarningILMColumbus103 min
Aug 20, 4:04 PM EDTSpecial Weather StatementILMNew Hanover56 min
Aug 20, 4:35 PM EDTAreal Flood AdvisoryILMBrunswick, New Hanover85 min
Aug 20, 5:26 PM EDTSpecial Weather StatementILMBrunswick49 min
Aug 20, 5:48 PM EDTSpecial Weather StatementILMColumbus57 min
Aug 20, 6:50 PM EDTAreal Flood AdvisoryILMBrunswick, Columbus85 min
Aug 20, 6:53 PM EDTSpecial Weather StatementILMColumbus67 min

Nearby

Special Weather Statements in North Carolina, 2011Every special weather statement in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.