Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, NC

August 11, 2012Florence County, South Carolina

NWS Wilmington, NC issued this special weather statement at Aug 11, 2012, 1:32 PM EDT for Florence County, South Carolina. It was in force for 58 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 11, 2012, 1:32 PM EDT (17:32 UTC)
Expired: Aug 11, 2012, 2:30 PM EDT
In force: 58 min
Issued by: NWS Wilmington, NC

County Florence County, SC

The radar

The Wilmington radar (KLTX), 115 km from the middle of the area, began a volume at 17:33 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, 5.5 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 678 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 894 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 11, 1:25 PM EDT, 7 minutes earlier.

Area forecast discussion, Aug 11, 1:25 PM EDT, 7 minutes before

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Hazardous weather outlook, Aug 11, 5:42 AM EDT, 7 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
542 AM EDT SAT AUG 11 2012

AMZ254-256-120945-
LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM-
MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM-
542 AM EDT SAT AUG 11 2012

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 9 AM EDT THIS
MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

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

   SMALL CRAFT EXERCISE CAUTION.

.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.

AMZ250-252-120945-
SURF CITY TO CAPE FEAR NC OUT 20 NM-
CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM-
542 AM EDT SAT AUG 11 2012

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

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

 SMALL CRAFT ADVISORY.

.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.

NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-053>056-120945-
ROBESON-BLADEN-COLUMBUS-INLAND PENDER-COASTAL PENDER-
INLAND NEW HANOVER-COASTAL NEW HANOVER-INLAND BRUNSWICK-
COASTAL BRUNSWICK-MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-
WILLIAMSBURG-INLAND HORRY-COASTAL HORRY-INLAND GEORGETOWN-
COASTAL GEORGETOWN-
542 AM EDT SAT AUG 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA AND
NORTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE GUSTY WINDS AND
HEAVY RAINFALL. ISOLATED FLOODING MAY BE POSSIBLE IF STORMS ARE
ABLE TO REDEVELOP AND SOAK THE SAME AREAS WITHIN A SHORT 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.

9

In the hours before

Special weather statement, Aug 11, 12:29 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1229 PM EDT SAT AUG 11 2012

SCZ017-023-024-032-033-039-111730-
DARLINGTON-DILLON-FLORENCE-MARION-MARLBORO-WILLIAMSBURG-
1229 PM EDT SAT AUG 11 2012

...STRONG THUNDERSTORMS WILL MOVE ACROSS WILLIAMSBURG...FLORENCE...
MARION...DILLON...MARLBORO AND DARLINGTON COUNTIES THROUGH 130 PM
EDT...

AT 1230 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 7 MILES WEST OF LAMAR TO 16 MILES SOUTHWEST OF
HEBRON CROSSROADS...OR ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST
OF BISHOPVILLE TO 5 MILES EAST OF MANNING...MOVING NORTHEAST AT 40
MPH.

SOME LOCATIONS IMPACTED INCLUDE DARLINGTON...FLORENCE...KINGSTREE...
LAKE CITY...BINGHAM...BLUE BRICK...BROWNSVILLE...CADES...
CARTERSVILLE...CLAUSSEN...DARLINGTON RACEWAY AND EFFINGHAM.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 40 TO 50 MPH.

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.

&&

LAT...LON 3420 8012 3426 8013 3455 7947 3378 7933
      3376 7935 3362 8004 3372 7998 3377 8000
      3383 7991 3388 7989 3388 7994 3393 7997
      3396 7996 3399 7990 3407 8003 3409 8008
      3414 8015 3416 8016
TIME...MOT...LOC 1630Z 244DEG 33KT 3415 8015 3372 8009

BACON

Special weather statement, Aug 11, 1:32 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
132 PM EDT SAT AUG 11 2012

SCZ032-039-111830-
FLORENCE-WILLIAMSBURG-
132 PM EDT SAT AUG 11 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS WILLIAMSBURG AND FLORENCE
COUNTIES THROUGH 230 PM EDT...

AT 132 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
HEBRON...OR ABOUT 8 MILES SOUTHWEST OF LAKE CITY...MOVING EAST AT 20
MPH.

SOME LOCATIONS IMPACTED INCLUDE LAKE CITY...CADES...HANNAH...
HEBRON...HEBRON CROSSROADS...JOHNSONVILLE...KINGSBURG...NIXONVILLE...
POSTON AND SCRANTON.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

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.

&&

LAT...LON 3383 7991 3388 7989 3389 7989 3388 7994
      3390 7995 3401 7951 3398 7950 3396 7948
      3394 7949 3390 7943 3389 7940 3389 7941
      3384 7936 3377 7934 3371 7994 3380 7996
TIME...MOT...LOC 1732Z 258DEG 16KT 3382 7985

BACON

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 12:29 PM EDT	Special Weather Statement	ILM	Darlington, Florence	61 min
Aug 11, 12:55 PM EDT	Severe Thunderstorm Warning	ILM	Florence	40 min
Aug 11, 1:42 PM EDT	Special Weather Statement	ILM	Dillon	33 min
Aug 11, 3:15 PM EDT	Severe Thunderstorm Warning	ILM	Horry	60 min
Aug 11, 3:28 PM EDT	Special Weather Statement	ILM	Georgetown, Horry	62 min
Aug 11, 4:32 PM EDT	Special Weather Statement	ILM	Williamsburg	28 min
Aug 11, 6:32 PM EDT	Special Marine Warning	ILM		28 min
Aug 10, 10:40 PM EDT	Special Weather Statement	ILM	New Hanover	65 min
Aug 11, 2:31 PM EDT	Special Weather Statement	ILM	Robeson	59 min
Aug 11, 3:00 PM EDT	Special Weather Statement	ILM	Columbus	60 min

Nearby

Special Weather Statements in South Carolina, 2012 Every special weather statement in 2012

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.