Alert archive / South Carolina / Special Weather Statements in 2014

Special Weather Statement, NWS Columbia, SC

May 29, 2014Chesterfield County, South Carolina

NWS Columbia, SC issued this special weather statement at May 29, 2014, 2:34 PM EDT for Chesterfield County, South Carolina. It was in force for 41 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: May 29, 2014, 2:34 PM EDT (18:34 UTC)
Expired: May 29, 2014, 3:15 PM EDT
In force: 41 min
Issued by: NWS Columbia, SC

County Chesterfield County, SC

The radar

The Columbia radar (KCAE), 129 km from the middle of the area, began a volume at 18:36 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, 6.6 hours before the alert went out and 166 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: 177 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -65 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

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 May 29, 1:42 PM EDT, 52 minutes earlier.

Area forecast discussion, May 29, 1:42 PM EDT, 52 minutes before

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Hazardous weather outlook, May 29, 5:17 AM EDT, 9 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
517 AM EDT THU MAY 29 2014

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-300930-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
517 AM EDT THU MAY 29 2014

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS WILL HAVE THE POTENTIAL TO
PRODUCE LOCALLY HEAVY RAIN...ALONG WITH STRONG GUSTY WINDS AND
SMALL HAIL. CAN NOT RULE OUT AN ISOLATED SEVERE STORM OR FLASH
FLOOD EVENT WITH THE SLOW MOVING STORMS THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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 29, 2:34 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
234 PM EDT THU MAY 29 2014

SCZ016-291915-
CHESTERFIELD-
234 PM EDT THU MAY 29 2014

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF CHESTERFIELD COUNTY
THROUGH 315 PM EDT...

AT 227 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...8 MILES EAST OF PATRICK...WITH NEARLY
STATIONARY MOVEMENT.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
CHERAW AND CHESTERFIELD...

GUSTY WINDS OF 40 TO 50 MPH...SMALL HAIL AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS.

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 3460 7980 3454 7983 3449 7989 3448 7996
      3449 7999 3448 8007 3452 8028 3466 8027
      3477 8017 3470 7987 3468 7985 3465 7979
      3461 7978
TIME...MOT...LOC 1832Z 200DEG 1KT 3455 7991

HC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 4:42 PM EDT	Special Weather Statement	CAE	Lexington	48 min
May 29, 5:32 PM EDT	Special Weather Statement	CAE	Kershaw	28 min
May 29, 6:48 PM EDT	Special Weather Statement	CAE	Calhoun	57 min
May 29, 7:47 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	43 min
May 29, 5:55 PM EDT	Special Weather Statement	CAE	McDuffie	35 min
May 29, 7:17 PM EDT	Special Weather Statement	CAE	Columbia	58 min

Nearby

Special Weather Statements in South Carolina, 2014 Every special weather statement in 2014

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.