Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Wilmington, NC

July 23, 2011Dillon County, South Carolina

NWS Wilmington, NC issued this special weather statement at Jul 23, 2011, 2:13 PM EDT for Dillon County, South Carolina. It was in force for 32 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
Jul 23, 2011, 2:13 PM EDT (18:13 UTC)
Expired
Jul 23, 2011, 2:45 PM EDT
In force
32 min
Issued by
NWS Wilmington, NC

County Dillon County, SC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.2 hours before the alert went out and 188 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, Greensboro/Hi Pt, NC at 12:00Z on 2011-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1021 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, Greensboro/Hi Pt, NC at 12:00Z on 2011-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -69 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
1021 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1247 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-69 m²/s²
0-3 km storm-relative helicity
4 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 Jul 23, 1:01 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 23, 1:01 PM EDT, 1 hour 12 minutes before
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Hazardous weather outlook, Jul 23, 4:32 AM EDT, 9 hours 41 minutes before
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In the hours before

Special weather statement, Jul 23, 2:13 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
213 PM EDT SAT JUL 23 2011

NCZ087-SCZ024-231845-
ROBESON-DILLON-
213 PM EDT SAT JUL 23 2011

...STRONG THUNDERSTORMS OVER CENTRAL DILLON COUNTY AFFECTING
SECTIONS OF I-95...

AT 211 PM EDT...A STRONG THUNDERSTORM WAS...3 MILES SOUTHWEST OF
LITTLE ROCK...OR 4 MILES WEST OF DILLON...MOVING EAST AT 10 MPH.

THESE THUNDERSTORMS HAVE THE CAPABILITY OF PRODUCING GUSTY WINDS UP
TO 40 MPH AND FREQUENT DANGEROUS LIGHTNING. SMALL HAIL AND
TORRENTIAL RAINFALL IS ALSO EXPECTED. THIS STORM WILL AFFECT
PORTIONS OF INTERSTATE 95 NORTH OF DILLON. PONDING WATER RESULTING
FROM HEAVY RAINFALL CAN LEAD TO HYDROPLANING...DRIVERS ARE
ENCOURAGED TO REDUCE SPEED IN THESE AREAS.

COMMUNITIES IN THE PATH OF THESE STORMS ARE DILLON...HAMER...LITTLE
ROCK...MINTURN...PURVIS...ROWLAND AND SOUTH OF THE BORDER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR FURTHER DETAILS OR
UPDATES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
WEATHER.GOV/ILM.

LAT...LON 3438 7918 3434 7951 3445 7955 3453 7950
      3460 7925

BACON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 3:18 PM EDTExcessive Heat WarningILMDarlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more27 hr
Jul 23, 3:47 PM EDTSpecial Weather StatementILMHorry28 min
Jul 23, 4:26 PM EDTAreal Flood AdvisoryILMHorry51 min
Jul 23, 4:36 PM EDTSevere Thunderstorm WarningILMHorry25 min
Jul 23, 5:05 PM EDTSpecial Weather StatementILMPender25 min
Jul 23, 5:09 PM EDTSevere Thunderstorm WarningILMPender51 min
Jul 23, 5:27 PM EDTSevere Thunderstorm WarningILMPender33 min

Nearby

Special Weather Statements in South 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.