Alert archive / South Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 36, NWS Columbia, SC

May 21, 2013Newberry County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 21, 2013, 3:58 PM EDT for Newberry County, South Carolina. It was in force for 47 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: May 21, 2013, 3:58 PM EDT (19:58 UTC)
Expired: May 21, 2013, 4:45 PM EDT
In force: 47 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Newberry County, SC

The radar

The Columbia radar (KCAE), 58 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 214 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: 1783 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 438 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -25 m²/s²
0-3 km storm-relative helicity: 4 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 May 21, 3:58 PM EDT, 0 minutes earlier.

Area forecast discussion, May 21, 3:58 PM EDT, 0 minutes before

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Hazardous weather outlook, May 21, 4:03 AM EDT, 11 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
403 AM EDT TUE MAY 21 2013

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-220815-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
403 AM EDT TUE MAY 21 2013

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

.DAY ONE...TODAY 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

Special weather statement, May 21, 1:53 PM EDT, 2 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
153 PM EDT TUE MAY 21 2013

SCZ027-030-211830-
AIKEN-LEXINGTON-
153 PM EDT TUE MAY 21 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF LEXINGTON AND AIKEN
COUNTIES THROUGH 230 PM EDT...

AT 151 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERAL STRONG THUNDERSTORMS OVER WESTERN LEXINGTON AND NORTHERN
AIKEN COUNTIES. THESE STORMS WERE DRIFTING SLOWLY SOUTH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BATESBURG...LEESVILLE...PELION AND WAGNER...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
SMALL HAIL...
HEAVY RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS POSE A VARIETY OF THREATS TO BOATERS ON LAKE MURRAY.
YOUR BEST COURSE OF ACTION DURING A THUNDERSTORM IS TO SEEK SAFE
HARBOR. IF YOU ARE CAUGHT IN THE OPEN LAKE WATERS...STAY BELOW
DECK...AND IF POSSIBLE...AWAY FROM UNGROUNDED METAL OBJECTS.

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 3343 8161 3379 8164 3386 8159 3388 8157
      3409 8146 3399 8129 3379 8120 3368 8113
      3365 8119 3364 8120
TIME...MOT...LOC 1750Z 357DEG 2KT 3369 8132

Special weather statement, May 21, 2:48 PM EDT, 1 hour 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
248 PM EDT TUE MAY 21 2013

SCZ027-030-211945-
AIKEN-LEXINGTON-
248 PM EDT TUE MAY 21 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF LEXINGTON AND AIKEN
COUNTIES THROUGH 345 PM EDT...

AT 245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERAL STRONG THUNDERSTORMS CENTERED ALONG INTERSTATE 20 FROM THE
TOWN OF LEXINGTON INTO CENTRAL AIKEN COUNTY. THESE STORMS WERE
NEARLY STATIONARY.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BATESBURG...LEESVILLE...LEXINGTON...OAK GROVE...PINE RIDGE...RED
BANK...SOUTH CONGAREE AND SPRINGDALE...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 30 TO 40 MPH...
SMALL HAIL...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

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 3380 8168 3388 8157 3390 8156 3405 8119
      3392 8107 3365 8171 3376 8171
TIME...MOT...LOC 1846Z 339DEG 1KT 3393 8126

Special weather statement, May 21, 3:04 PM EDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
304 PM EDT TUE MAY 21 2013

SCZ021-211945-
FAIRFIELD-
304 PM EDT TUE MAY 21 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF FAIRFIELD COUNTY
THROUGH 345 PM EDT...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...OVER NORTHWESTERN FAIRFIELD COUNTY...NEARLY
STATIONARY.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 30 TO 40 MPH...
SMALL HAIL...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

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 3454 8122 3442 8137 3446 8142 3448 8141
      3449 8142 3451 8143 3458 8137
TIME...MOT...LOC 1903Z 046DEG 1KT 3452 8136

Special weather statement, May 21, 3:39 PM EDT, 19 minutes before

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Special weather statement, May 21, 3:42 PM EDT, 16 minutes before

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Special weather statement, May 21, 3:50 PM EDT, 8 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
May 21, 1:34 PM EDT	Special Weather Statement	CAE	Fairfield	41 min
May 21, 1:53 PM EDT	Special Weather Statement	CAE	Lexington	37 min
May 21, 2:48 PM EDT	Special Weather Statement	CAE	Lexington	57 min
May 21, 3:04 PM EDT	Special Weather Statement	CAE	Fairfield	41 min
May 21, 3:07 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	38 min
May 21, 3:09 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield	51 min
May 21, 3:39 PM EDT	Special Weather Statement	CAE	Richland	51 min
May 21, 3:42 PM EDT	Special Weather Statement	CAE	Aiken, Barnwell	63 min
May 21, 3:44 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	46 min
May 21, 3:50 PM EDT	Special Weather Statement	CAE	Lancaster	40 min
May 21, 3:54 PM EDT	Flash Flood Warning	CAE	Lexington, Richland	66 min
May 21, 4:12 PM EDT	Special Weather Statement	CAE	Orangeburg	48 min
May 21, 5:53 PM EDT	Special Weather Statement	CAE	McCormick	37 min
May 21, 4:19 PM EDT	Special Weather Statement	CAE	Burke, Richmond	41 min
May 21, 5:16 PM EDT	Special Weather Statement	CAE	Burke	44 min
May 21, 6:04 PM EDT	Severe Thunderstorm Warning	CAE	McDuffie	26 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2013 Every severe thunderstorm warning in 2013

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.