Alert archive / South Carolina / Special Weather Statements in 2014

Special Weather Statement, NWS Wilmington, NC

August 9, 2014Georgetown County, South Carolina

NWS Wilmington, NC issued this special weather statement at Aug 9, 2014, 12:47 PM EDT for Georgetown County, South Carolina. It was in force for 28 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 9, 2014, 12:47 PM EDT (16:47 UTC)
Expired: Aug 9, 2014, 1:15 PM EDT
In force: 28 min
Issued by: NWS Wilmington, NC

County Georgetown County, SC

The radar

The Wilmington radar (KLTX), 110 km from the middle of the area, began a volume at 16:50 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, 4.8 hours before the alert went out and 79 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: 1753 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 710 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 75 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 9, 10:15 AM EDT, 2 hours 32 minutes earlier.

Area forecast discussion, Aug 9, 10:15 AM EDT, 2 hours 32 minutes before

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Hazardous weather outlook, Aug 9, 4:19 AM EDT, 8 hours 28 minutes before

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In the hours before

Special weather statement, Aug 9, 11:21 AM EDT, 1 hour 26 minutes before

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Special weather statement, Aug 9, 11:45 AM EDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1145 AM EDT SAT AUG 9 2014

SCZ023-032-091615-
DARLINGTON-FLORENCE-
1145 AM EDT SAT AUG 9 2014

...STRONG THUNDERSTORMS WILL MOVE ACROSS NORTHERN FLORENCE AND
DARLINGTON COUNTIES...

AT 1144 AM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM HARTSVILLE TO LAMAR...MOVING EAST AT 25 MPH.

SOME LOCATIONS IMPACTED INCLUDE DARLINGTON...FLORENCE...HARTSVILLE...
AUBURN...DARLINGTON RACEWAY...DOVESVILLE...FLOYD...LAMAR...LYDIA...
MONT CLARE AND OATS.

HAZARDS INCLUDE...
GUSTY WINDS OF 40 TO 50 MPH.
HEAVY RAINFALL AND MINOR FLOODING.

WEAK OR DEAD TREE LIMBS COULD BE KNOCKED DOWN.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH MAY CAUSE MINOR
FLOODING OF LOW LYING AREAS INCLUDING DITCHES...PARKING LOTS...AND
AREAS OF POOR DRAINAGE.

&&

LAT...LON 3418 8015 3420 8012 3423 8012 3426 8013
      3438 8010 3449 7978 3417 7976 3413 8014
      3415 8015
TIME...MOT...LOC 1544Z 271DEG 20KT 3438 8009 3414 8008

TRA

Special weather statement, Aug 9, 12:47 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1247 PM EDT SAT AUG 9 2014

SCZ055-056-091715-
COASTAL GEORGETOWN-INLAND GEORGETOWN-
1247 PM EDT SAT AUG 9 2014

...A STRONG THUNDERSTORM WILL APPROACH GEORGETOWN EARLY THIS
AFTERNOON...

AT 1247 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM JUST
WEST OF GEORGETOWN...MOVING NORTHEAST AT 15 MPH.

SOME LOCATIONS IMPACTED INCLUDE GEORGETOWN...GRAVES AND SAMPIT.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING.
HEAVY RAINFALL...WITH RAINFALL RATES OVER ONE INCH PER HOUR.

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 3349 7940 3342 7921 3323 7929 3328 7943
      3336 7949
TIME...MOT...LOC 1647Z 223DEG 11KT 3335 7936

TRA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 6:01 AM EDT	Coastal Flood Advisory	ILM	Brunswick, New Hanover, Pender	17 hr
Aug 9, 1:49 PM EDT	Areal Flood Advisory	ILM	Pender	86 min
Aug 9, 1:53 PM EDT	Special Weather Statement	ILM	Columbus	52 min
Aug 9, 2:10 PM EDT	Areal Flood Advisory	ILM	Bladen, Columbus	2 hr
Aug 9, 2:15 PM EDT	Flood Watch	ILM	Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson	30 hr
Aug 9, 2:20 PM EDT	Areal Flood Warning	ILM	Pender	7 hr
Aug 9, 2:36 PM EDT	Areal Flood Warning	ILM	Bladen, Columbus	3 hr
Aug 8, 11:23 PM EDT	Special Weather Statement	ILM	Marlboro	52 min
Aug 9, 11:12 AM EDT	Areal Flood Advisory	ILM	Darlington	2 hr
Aug 9, 11:21 AM EDT	Special Weather Statement	ILM	Darlington	39 min
Aug 9, 11:45 AM EDT	Special Weather Statement	ILM	Darlington	30 min
Aug 9, 12:54 PM EDT	Special Weather Statement	ILM	Florence	51 min
Aug 9, 1:09 PM EDT	Special Weather Statement	ILM	Georgetown	51 min
Aug 9, 1:59 PM EDT	Special Weather Statement	ILM	Horry	46 min
Aug 9, 5:22 PM EDT	Areal Flood Advisory	ILM	Darlington	83 min
Aug 9, 5:35 PM EDT	Areal Flood Advisory	ILM	Williamsburg	3 hr
Aug 9, 6:14 PM EDT	Areal Flood Advisory	ILM	Darlington	91 min
Aug 9, 7:08 PM EDT	Special Weather Statement	ILM	Berkeley	22 min
Aug 9, 7:35 PM EDT	Areal Flood Advisory	ILM	Georgetown	2 hr

Nearby

Special Weather Statements in South Carolina, 2014 Every special weather statement in 2014

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.