Alert archive / South Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 142, NWS Columbia, SC

August 5, 2015Chesterfield County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Aug 5, 2015, 6:05 PM EDT for Chesterfield County, South Carolina. It was in force for 40 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: Aug 5, 2015, 6:05 PM EDT (22:05 UTC)
Expired: Aug 5, 2015, 6:45 PM EDT
In force: 40 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Chesterfield County, SC

The radar

The Columbia radar (KCAE), 117 km from the middle of the area, began a volume at 22:06 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.1 hours before the alert went out and 162 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: 186 J/kg
Mixed-layer CIN: -203 J/kg
Mixed-layer LCL: 1664 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 67 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 Aug 5, 5:29 PM EDT, 36 minutes earlier.

Area forecast discussion, Aug 5, 5:29 PM EDT, 36 minutes before

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Hazardous weather outlook, Aug 5, 3:07 AM EDT, 14 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
307 AM EDT WED AUG 5 2015

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-060715-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
307 AM EDT WED AUG 5 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA.

.DAY ONE...TODAY AND TONIGHT.

HOT TEMPERATURES FORECAST THIS AFTERNOON UP TO AROUND 102...WITH
HEAT INDEX VALUES RANGING FROM 102 TO 107.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

MARGINAL RISK OF SEVERE THUNDERSTORMS THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 5, 3:13 PM EDT, 2 hours 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
313 PM EDT WED AUG 5 2015

SCZ027-028-037-052015-
LEXINGTON-RICHLAND-CALHOUN-
313 PM EDT WED AUG 5 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CALHOUN...
SOUTHEASTERN LEXINGTON...WESTERN SUMTER...SOUTHEASTERN RICHLAND AND
NORTHWESTERN ORANGEBURG COUNTIES...

AT 312 PM EDT...A STRONG THUNDERSTORM WAS NEAR CAYCE...MOVING
NORTHEAST AT 15 MPH.

WIND GUSTS OF 45 TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
COLUMBIA...LEXINGTON...WEST COLUMBIA...CAYCE...FOREST ACRES...
SPRINGDALE...WOODFIELDS...RED BANK...DENTSVILLE...OAK GROVE...ST.
ANDREWS...SOUTH CONGAREE...PINE RIDGE...GASTON...ARCADIA LAKES...
EASTOVER...WOODFIELD...FIVE POINTS...FORT JACKSON AND SWANSEA.

LAT...LON 3384 8063 3369 8102 3371 8105 3366 8117
      3396 8128 3415 8088 3395 8063 3391 8063
      3388 8062
TIME...MOT...LOC 1912Z 243DEG 30KT 3392 8101

CJR

Special weather statement, Aug 5, 4:49 PM EDT, 1 hour 16 minutes before

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Local storm report, Aug 5, 5:12 PM EDT, 53 minutes before

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Local storm report, Aug 5, 5:41 PM EDT, 24 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
Aug 5, 3:13 PM EDT	Special Weather Statement	CAE	Richland	62 min
Aug 5, 3:17 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	43 min
Aug 5, 4:02 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	118 min
Aug 5, 4:49 PM EDT	Special Weather Statement	CAE	Lee	56 min
Aug 5, 4:53 PM EDT	Severe Thunderstorm Warning	CAE	Lee, Sumter	37 min
Aug 5, 5:19 PM EDT	Flash Flood Warning	CAE	Richland	116 min
Aug 5, 6:29 PM EDT	Special Weather Statement	CAE	Saluda	61 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2015 Every severe thunderstorm warning in 2015

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.