Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 142, NWS Columbia, SC

July 3, 2012Aiken County, Lexington County, Orangeburg County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jul 3, 2012, 5:29 PM EDT for Aiken County, Lexington County, Orangeburg County, South Carolina. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 3, 2012, 5:29 PM EDT (21:29 UTC)
Expired: Jul 3, 2012, 6:15 PM EDT
In force: 46 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Aiken County, SC, Lexington County, SC, Orangeburg County, SC

The radar

The Columbia radar (KCAE), 37 km from the middle of the area, began a volume at 21:28 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, 9.5 hours before the alert went out and 141 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: 2583 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1031 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 31 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 3, 5:26 PM EDT, 3 minutes earlier.

Area forecast discussion, Jul 3, 5:26 PM EDT, 3 minutes before

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Hazardous weather outlook, Jul 3, 3:46 PM EDT, 1 hour 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
346 PM EDT TUE JUL 3 2012

GAZ040-063>065-077-SCZ018-025-030-035-041-042000-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-MCCORMICK-EDGEFIELD-AIKEN-
BARNWELL-BAMBERG-
346 PM EDT TUE JUL 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND
CENTRAL SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A FEW THUNDERSTORMS MAY CONTAIN DAMAGING WIND AND HAIL THIS
AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

SCZ015-016-020>022-026>029-031-036>038-042000-
LANCASTER-CHESTERFIELD-NEWBERRY-FAIRFIELD-KERSHAW-SALUDA-LEXINGTON-
RICHLAND-LEE-SUMTER-ORANGEBURG-CALHOUN-CLARENDON-
346 PM EDT TUE JUL 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 3, 2:17 PM EDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
217 PM EDT TUE JUL 03 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0205 PM     TSTM WND DMG     8 S KEYSVILLE           33.13N 82.25W
07/03/2012                   BURKE              GA   PUBLIC

            PUBLIC REPORTS NICKEL SIZE HAIL AND POWER OUTAGES FROM
            LINES DOWN ALONG WILLIAM TINLEY ROAD SOUTHWEST OF ST.
            CLAIR.

&&

SJN

Local storm report, Jul 3, 4:52 PM EDT, 37 minutes before

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Local storm report, Jul 3, 5:10 PM EDT, 19 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
Jul 3, 3:46 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	29 min
Jul 3, 4:06 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	24 min
Jul 3, 4:11 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	49 min
Jul 3, 5:04 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	26 min
Jul 3, 6:10 PM EDT	Severe Thunderstorm Warning	CAE	Saluda	65 min
Jul 3, 7:03 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Newberry	57 min
Jul 3, 1:40 PM EDT	Severe Thunderstorm Warning	CAE	Burke	35 min
Jul 3, 3:52 PM EDT	Severe Thunderstorm Warning	CAE	Burke	23 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012 Every severe thunderstorm warning 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.