Alert archive / South Carolina / Special Weather Statements in 2016

Special Weather Statement, NWS Columbia, SC

July 31, 2016Lexington County, South Carolina

NWS Columbia, SC issued this special weather statement at Jul 31, 2016, 5:53 PM EDT for Lexington County, South Carolina. It was in force for 37 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: Jul 31, 2016, 5:53 PM EDT (21:53 UTC)
Expired: Jul 31, 2016, 6:30 PM EDT
In force: 37 min
Issued by: NWS Columbia, SC

County Lexington County, SC

The radar

The Columbia radar (KCAE), 11 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 146 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: 1980 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 994 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jul 31, 5:34 PM EDT, 19 minutes earlier.

Area forecast discussion, Jul 31, 5:34 PM EDT, 19 minutes before

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Hazardous weather outlook, Jul 31, 4:36 AM EDT, 13 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
436 AM EDT SUN JUL 31 2016

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-010845-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
436 AM EDT SUN JUL 31 2016

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

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

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, Jul 31, 2:24 PM EDT, 3 hours 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
224 PM EDT SUN JUL 31 2016

SCZ027-028-037-311900-
LEXINGTON-RICHLAND-CALHOUN-
224 PM EDT SUN JUL 31 2016

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CALHOUN...SOUTH
CENTRAL RICHLAND AND SOUTHEASTERN LEXINGTON COUNTIES...

AT 224 PM EDT...A STRONG THUNDERSTORM WAS 9 MILES SOUTHEAST OF
GASTON...OR 16 MILES SOUTH OF CAYCE...MOVING NORTHEAST AT 5 MPH.

WIND GUSTS OF 45 TO 55 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SWANSEA.

LAT...LON 3361 8093 3362 8094 3364 8094 3363 8096
      3365 8099 3371 8104 3370 8107 3372 8110
      3395 8097 3379 8069
TIME...MOT...LOC 1824Z 214DEG 6KT 3373 8097

CJR

Special weather statement, Jul 31, 3:18 PM EDT, 2 hours 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
318 PM EDT SUN JUL 31 2016

SCZ027-028-031-036>038-312015-
LEXINGTON-CLARENDON-RICHLAND-CALHOUN-SUMTER-ORANGEBURG-
318 PM EDT SUN JUL 31 2016

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN
ORANGEBURG...CALHOUN...SOUTHEASTERN RICHLAND...SOUTHEASTERN
LEXINGTON...SOUTHWESTERN CLARENDON...AND SOUTHWESTERN SUMTER
COUNTIES...

AT 315 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED ACROSS
MUCH OF NORTHWESTERN ORANGEBURG...CALHOUN...SOUTHEASTERN
RICHLAND...SOUTHEASTERN LEXINGTON...SOUTHWESTERN CLARENDON...AND
SOUTHWESTERN SUMTER COUNTIES. THESE STORMS WERE NEARLY STATIONARY.

WIND GUSTS OF 45 TO 55 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
PINE RIDGE...ST. MATTHEWS...GASTON...SUMMERTON...SWANSEA...
PINEWOOD...PAXVILLE...PRIVATEER AND LAKEWOOD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3369 8119 3390 8111 3382 8028 3355 8034
TIME...MOT...LOC 1915Z 266DEG 2KT 3372 8060

Special weather statement, Jul 31, 3:52 PM EDT, 2 hours 1 minute before

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Local storm report, Jul 31, 4:24 PM EDT, 1 hour 29 minutes before

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Local storm report, Jul 31, 4:27 PM EDT, 1 hour 26 minutes before

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Special weather statement, Jul 31, 5:53 PM EDT, 0 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 31, 1:49 PM EDT	Special Weather Statement	CAE	Sumter	41 min
Jul 31, 2:24 PM EDT	Special Weather Statement	CAE	Calhoun	36 min
Jul 31, 2:33 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland	42 min
Jul 31, 2:36 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	39 min
Jul 31, 3:18 PM EDT	Special Weather Statement	CAE	Calhoun	57 min
Jul 31, 3:19 PM EDT	Areal Flood Advisory	CAE	Aiken, Barnwell	116 min
Jul 31, 3:30 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Lexington	45 min
Jul 31, 3:52 PM EDT	Special Weather Statement	CAE	Edgefield	38 min
Jul 31, 4:57 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	48 min

Nearby

Special Weather Statements in South Carolina, 2016 Every special weather statement in 2016

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.