Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Columbia, SC

December 26, 2012Clarendon County, South Carolina

NWS Columbia, SC issued this special weather statement at Dec 26, 2012, 10:47 AM EST for Clarendon 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: Dec 26, 2012, 10:47 AM EST (15:47 UTC)
Expired: Dec 26, 2012, 11:15 AM EST
In force: 28 min
Issued by: NWS Columbia, SC

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 102 km from the middle of the area, began a volume at 15:47 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, 3.8 hours before the alert went out and 77 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: 560 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 612 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 222 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.0

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 Columbia, SC wrote its last area forecast discussion before this special weather statement went out at Dec 26, 10:35 AM EST, 12 minutes earlier.

Area forecast discussion, Dec 26, 10:35 AM EST, 12 minutes before

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Hazardous weather outlook, Dec 26, 10:39 AM EST, 8 minutes before

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In the hours before

Special weather statement, Dec 26, 6:47 AM EST, 4 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
647 AM EST WED DEC 26 2012

GAZ065-077-SCZ030-035-261230-
AIKEN-BARNWELL-BURKE-RICHMOND-
647 AM EST WED DEC 26 2012

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF RICHMOND...BURKE...
AIKEN AND BARNWELL COUNTIES THROUGH 730 AM EST...

AT 639 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM JUST EAST OF LOUISVILLE OR ABOUT 24 MILES
SOUTHWEST OF KEYSVILLE...MOVING NORTHEAST AT 50 TO 60 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
JACKSON...NORTH AUGUSTA...AUGUSTA...FORT GORDON...HEPHZIBAH AND
WAYNESBORO...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3293 8228 3308 8230 3322 8224 3325 8225
      3328 8229 3348 8213 3354 8204 3353 8201
      3356 8197 3320 8163 3283 8231
TIME...MOT...LOC 1146Z 223DEG 61KT 3303 8237

Special weather statement, Dec 26, 7:14 AM EST, 3 hours 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
714 AM EST WED DEC 26 2012

SCZ020-021-026-261315-
FAIRFIELD-NEWBERRY-SALUDA-
714 AM EST WED DEC 26 2012

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF FAIRFIELD...NEWBERRY
AND SALUDA COUNTIES THROUGH 815 AM EST...

AT 712 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR SALUDA...MOVING NORTHEAST AT 50 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
NEWBERRY...PROSPERITY...SALUDA AND WINNSBORO...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3455 8088 3448 8090 3445 8087 3420 8125
      3423 8128 3424 8132 3420 8134 3415 8142
      3412 8143 3410 8141 3408 8144 3409 8147
      3405 8148 3388 8173 3399 8190 3450 8159
      3445 8153 3449 8149 3450 8143 3458 8142
TIME...MOT...LOC 1214Z 218DEG 72KT 3402 8174

HC

Special weather statement, Dec 26, 8:30 AM EST, 2 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
830 AM EST WED DEC 26 2012

SCZ015-016-021-022-027>029-031-035>038-041-261530-
LANCASTER-CHESTERFIELD-FAIRFIELD-KERSHAW-LEXINGTON-RICHLAND-LEE-
SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-BAMBERG-
INCLUDING THE CITIES OF...LANCASTER...ELGIN...CHERAW...PAGELAND...
WINNSBORO...CAMDEN...LUGOFF...WEST COLUMBIA...CAYCE...LEXINGTON...
RED BANK...COLUMBIA...BISHOPVILLE...SUMTER...
SAVANNAH RIVER SITE...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
830 AM EST WED DEC 26 2012

...STRONG WIND GUSTS ASSOCIATED WITH EMBEDDED THUNDERSTORMS...

WEATHER SERVICE RADAR INDICATED AREAS OF HEAVY SHOWERS MOVING
NORTHEASTWARD ACROSS THE MIDLANDS THIS MORNING...AHEAD OF A COLD
FRONT. SOME EMBEDDED THUNDERSTORMS WITHIN THE AREA OF SHOWERS WILL
BE CAPABLE OF PRODUCING 45 TO 55 MPH WINDS. DUE TO WET SOIL
CONDITIONS FROM PREVIOUS RAINS...IT IS POSSIBLE SOME TREES WILL BE
DOWNED ASSOCIATED WITH THESE STRONG BUT NON-SEVERE WINDS. AREAS
AFFECTED INCLUDE
CAMDEN...SUMTER...ORANGEBURG...MANNING...CHESTERFIELD...AND
BISHOPVILLE.

REPORT DAMAGING WINDS OR FLOODING TO YOUR COUNTY SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS.

Special weather statement, Dec 26, 10:16 AM EST, 31 minutes before

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Special weather statement, Dec 26, 10:47 AM EST, 0 minutes before

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The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 26, 2:58 AM EST	Wind Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	21 hr
Dec 26, 7:14 AM EST	Special Weather Statement	CAE	Fairfield, Newberry, Saluda	61 min
Dec 26, 7:41 AM EST	Areal Flood Advisory	CAE	Richland	49 min
Dec 26, 9:14 AM EST	Severe Thunderstorm Warning	CAE	Calhoun, Chesterfield, Kershaw, Lee, Richland, Sumter	61 min
Dec 26, 10:16 AM EST	Special Weather Statement	CAE	Lee	14 min
Dec 26, 6:47 AM EST	Special Weather Statement	CAE	Burke, Richmond	43 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.