Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, NC

July 24, 2012Georgetown County, South Carolina

NWS Wilmington, NC issued this special weather statement at Jul 24, 2012, 7:04 PM EDT for Georgetown County, South Carolina. It was in force for 26 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 24, 2012, 7:04 PM EDT (23:04 UTC)
Expired: Jul 24, 2012, 7:30 PM EDT
In force: 26 min
Issued by: NWS Wilmington, NC

County Georgetown County, SC

The radar

The Wilmington radar (KLTX), 92 km from the middle of the area, began a volume at 23:05 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, 11.1 hours before the alert went out and 99 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: 1348 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 977 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 76 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 24, 6:55 PM EDT, 9 minutes earlier.

Area forecast discussion, Jul 24, 6:55 PM EDT, 9 minutes before

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Hazardous weather outlook, Jul 24, 4:32 PM EDT, 2 hours 32 minutes before

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In the hours before

Special weather statement, Jul 24, 5:28 PM EDT, 1 hour 36 minutes before

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Special weather statement, Jul 24, 5:37 PM EDT, 1 hour 27 minutes before

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Special weather statement, Jul 24, 6:09 PM EDT, 55 minutes before

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Local storm report, Jul 24, 6:22 PM EDT, 42 minutes before

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Special weather statement, Jul 24, 6:59 PM EDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
659 PM EDT TUE JUL 24 2012

SCZ032-033-053-242330-
FLORENCE-INLAND HORRY-MARION-
659 PM EDT TUE JUL 24 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS HORRY...FLORENCE AND MARION
COUNTIES THROUGH 730 PM EDT...

AT 659 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
GRESHAM...OR ABOUT 16 MILES EAST OF LAKE CITY...MOVING SOUTHEAST AT
25 MPH.

SOME LOCATIONS IMPACTED INCLUDE BRITTON NECK...GRESHAM...
JOHNSONVILLE...KINGSBURG...PEE DEE CROSSROADS AND POSTON.

HEAVY RAINFALL AND MINOR FLOODING.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
TUESDAY EVENING FOR SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH
CAROLINA.

&&

LAT...LON 3376 7930 3380 7933 3380 7934 3381 7935
      3382 7938 3381 7939 3379 7943 3392 7955
      3400 7944 3381 7916 3372 7928
TIME...MOT...LOC 2259Z 315DEG 20KT 3392 7946

BACON

Special weather statement, Jul 24, 7:04 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
704 PM EDT TUE JUL 24 2012

SCZ055-056-242330-
COASTAL GEORGETOWN-INLAND GEORGETOWN-
704 PM EDT TUE JUL 24 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS GEORGETOWN COUNTY THROUGH
730 PM EDT...

AT 704 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES
NORTHEAST OF RHEMS...OR ABOUT 18 MILES WEST OF MURRELLS INLET...
MOVING SOUTHEAST AT 20 MPH.

SOME LOCATIONS IMPACTED INCLUDE JACKSON...LITCHFIELD BEACH...
OATLAND...PLANTERSVILLE...RHEMS...YAUHANNAH AND PAWLEY'S ISLAND.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

HEAVY RAINFALL AND MINOR FLOODING.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
TUESDAY EVENING FOR SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH
CAROLINA.

&&

LAT...LON 3335 7921 3360 7945 3365 7942 3367 7942
      3375 7932 3352 7904 3347 7909 3341 7912
TIME...MOT...LOC 2304Z 318DEG 19KT 3362 7933

BACON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 3:58 PM EDT	Heat Advisory	ILM	Darlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more	9 hr
Jul 24, 5:44 PM EDT	Special Marine Warning	ILM		2 hr
Jul 24, 6:09 PM EDT	Special Weather Statement	ILM	Horry	51 min
Jul 24, 6:59 PM EDT	Special Weather Statement	ILM	Marion	31 min
Jul 24, 7:29 PM EDT	Special Marine Warning	ILM		67 min
Jul 24, 7:34 PM EDT	Special Marine Warning	ILM		56 min
Jul 23, 11:37 PM EDT	Special Weather Statement	ILM	Robeson	53 min
Jul 24, 4:48 PM EDT	Special Weather Statement	ILM	Bladen	12 min
Jul 24, 5:02 PM EDT	Special Weather Statement	ILM	Bladen	28 min
Jul 24, 5:28 PM EDT	Special Weather Statement	ILM	Bladen	47 min
Jul 24, 5:37 PM EDT	Special Weather Statement	ILM	New Hanover, Pender	23 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.