Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 205, NWS Columbia, SC

June 28, 2011Fairfield County, Kershaw County, Lancaster County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 28, 2011, 4:51 PM EDT for Fairfield County, Kershaw County, Lancaster County, South Carolina. It was in force for 54 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: Jun 28, 2011, 4:51 PM EDT (20:51 UTC)
Expired: Jun 28, 2011, 5:45 PM EDT
In force: 54 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Fairfield County, SC, Kershaw County, SC, Lancaster County, SC

The radar

The Columbia radar (KCAE), 65 km from the middle of the area, began a volume at 20:51 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, 8.9 hours before the alert went out and 190 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: 1022 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1025 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -77 m²/s²
0-3 km storm-relative helicity: -48 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 Jun 28, 4:22 PM EDT, 29 minutes earlier.

Area forecast discussion, Jun 28, 4:22 PM EDT, 29 minutes before

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Hazardous weather outlook, Jun 28, 4:18 AM EDT, 12 hours 33 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
418 AM EDT TUE JUN 28 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-290830-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
418 AM EDT TUE JUN 28 2011

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE TODAY AND
TONIGHT. SOME THUNDERSTORMS COULD BE STRONG TO SEVERE...WITH THE MAIN
THREATS BEING DAMAGING WIND GUSTS AND HEAVY RAINFALL.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED AT SOME POINT TODAY OR TONIGHT.

In the hours before

Local storm report, Jun 28, 3:02 PM EDT, 1 hour 49 minutes before

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Local storm report, Jun 28, 3:44 PM EDT, 1 hour 7 minutes before

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Local storm report, Jun 28, 3:56 PM EDT, 55 minutes before

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Local storm report, Jun 28, 4:01 PM EDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
401 PM EDT TUE JUN 28 2011

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

0302 PM     TSTM WND DMG     WILLISTON               33.40N 81.41W
06/28/2011                   BARNWELL           SC   911 CALL CENTER

            TREES REPORTED DOWN IN WILLISTON ALONG WITH
            DIME TO QUARTER SIZE HAIL. TIME ESTIMATED BY
            RADAR.

&&

HC

Local storm report, Jun 28, 4:24 PM EDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
424 PM EDT TUE JUN 28 2011

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

0356 PM     TSTM WND DMG     1 S MCBEE               34.46N 80.26W
06/28/2011                   CHESTERFIELD       SC   DEPT OF HIGHWAY

            TREES DOWN ON UNION CHURCH RD. TIME
            ESTIMATED BY RADAR.

&&

HC

Local storm report, Jun 28, 4:32 PM EDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
432 PM EDT TUE JUN 28 2011

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

0347 PM     HAIL             1 NNE MCBEE             34.49N 80.25W
06/28/2011  E1.00 INCH       CHESTERFIELD       SC   PUBLIC

            MCLEOD FARMS REPORTED HAIL THE SIZE OF
            PECANS

&&

HC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 8:19 PM EDT	Special Weather Statement	CAE	Newberry, Saluda	56 min
Jun 28, 2:55 AM EDT	Special Weather Statement	CAE	McCormick	50 min
Jun 28, 3:18 AM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	42 min
Jun 28, 1:51 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	39 min
Jun 28, 2:26 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	49 min
Jun 28, 3:05 PM EDT	Severe Thunderstorm Warning	CAE	Lee, Sumter	40 min
Jun 28, 3:19 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell	41 min
Jun 28, 3:30 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw	45 min
Jun 28, 3:38 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	22 min
Jun 28, 7:44 PM EDT	Severe Thunderstorm Warning	CAE	Burke, Columbia, McDuffie, Richmond	61 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Every severe thunderstorm warning in 2011

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.