Alert archive / South Carolina / Special Weather Statements in 2015

Special Weather Statement, NWS Columbia, SC

August 6, 20155 counties in South Carolina

NWS Columbia, SC issued this special weather statement at Aug 6, 2015, 6:51 PM EDT for 5 counties in 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 outline as issued.

The facts

Issued: Aug 6, 2015, 6:51 PM EDT (22:51 UTC)
Expired: Aug 6, 2015, 7:45 PM EDT
In force: 54 min
Issued by: NWS Columbia, SC

Counties Chesterfield County, SC, Kershaw County, SC, Lee County, SC, Richland County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 97 km from the middle of the area, began a volume at 22:50 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, 10.9 hours before the alert went out and 147 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: 619 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 974 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 36 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 Aug 6, 5:40 PM EDT, 1 hour 11 minutes earlier.

Area forecast discussion, Aug 6, 5:40 PM EDT, 1 hour 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
540 PM EDT THU AUG 6 2015

.SYNOPSIS...
AN UPPER TROUGH AND INCREASING MOISTURE WILL LEAD TO GREATER
PRECIPITATION CHANCES TODAY INTO FRIDAY...FOLLOWED BY DRIER AIR
RETURNING FOR THE WEEKEND. A FRONT MAY AFFECT THE REGION EARLY
NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
SHOWER AND THUNDERSTORM ACTIVITY CONTINUES TO INCREASE ACROSS THE
AREA AS THE LINE OF CONVECTION MOVES INTO THE AREA FROM THE WEST.
SEVERAL OF THE THUNDERSTORMS HAVE REACHED SEVERE LIMITS WITH ALL
REPORTS THUS FAR COMING FROM DAMAGING WINDS. HAVE BEEN ISOLATED
REPORTS OF SMALL HAIL WITH THE LARGEST SIZE SO FAR BEING ONE HALF
INCH. LINE OF THUNDERSTORMS CURRENTLY WITH THE TROUGH RUN FROM
CENTRAL NEWBERRY COUNTY THROUGH BURKE COUNTY. EXPECT THE
THUNDERSTORMS TO CONTINUE MARCHING ACROSS THE AREA OVER THE NEXT
SEVERAL HOURS AND MOVE EAST OF THE AREA LATE THIS EVENING. SEVERE
THUNDERSTORM WATCH 475 REMAINS IN EFFECT THROUGH 10 PM. AS THE
TROUGH MOVES EAST OF THE AREA OVERNIGHT CONVECTION WILL
DIMINISH...HOWEVER WITH LIFT AHEAD OF THE APPROACHING UPPER
TROUGH AND LOW LEVEL CONVERGENCE ALONG AND AHEAD OF THE SURFACE
BOUNDARY COMBINED WITH HIGH MOISTURE IN PLACE EXPECT CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. CONCERN FOR FLOODING REMAINS
MAINLY ACROSS THE 5 POINTS AND SURROUNDING AREA. ONE TO TWO INCHES
OF RAIN IN THE BASIN YESTERDAY COMBINED WITH UP TO AN INCH ALREADY
TODAY...PLUS MORE CELLS TO THE WEST HAVE RESULTED IN ISSUING A
FLASH FLOOD WARNING THROUGH 730 PM FOR THE COLUMBIA AND
SURROUNDING AREAS.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
STRONG SHORT WAVE TROUGH MOVING THROUGH THE REGION DURING THE
MORNING. SURFACE FRONTAL BOUNDARY MOVING SOUTH ACROSS THE AREA
DURING THE AFTERNOON. POPS HIGH IN THE MORNING THEN DECREASING IN
THE AFTERNOON AS STRONGEST LIFT MOVES EAST OF THE AREA. DRIER
ATMOSPHERE FOR SATURDAY. WEAK COOL ADVECTION BEHIND THE FRONT AND
DEPARTING LOW EXPECTED TO KEEP TEMPS DOWN TO NEAR CLIMATOLOGY SATURDAY.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
MODELS INDICATE UPPER RIDGE WILL SHIFT BACK TO THE WEST
SOME...WITH UPPER TROUGH DEEPENING OVER THE E CONUS...EARLY TO MID
NEXT WEEK. THIS ALONG WITH SOME EXPECTED INCREASE IN MOISTURE AND
INDICATIONS OF A POSSIBLE FRONT SUGGESTS TREND TOWARDS INCREASING
POPS. GENERALLY ACCEPTED BLEND OF GUIDANCE.

&&

.AVIATION /21Z THURSDAY THROUGH TUESDAY/...
WIDESPREAD CONVECTION TO AFFECT THE TAF SITES INTO THE EVENING.
AIRMASS MODERATELY UNSTABLE WITH AN UPPER LEVEL DISTURBANCE CROSSING
THE REGION THROUGH 07/02Z.

CHANCES FOR SHRA/TSRA WILL CONTINUE OVERNIGHT THEN GRADUALLY
DIMINISH ON FRIDAY FROM WEST TO EAST AS THE UPPER LEVEL DISTURBANCE
MOVES TO THE COAST.

EXTENDED AVIATION OUTLOOK...MVFR OR IFR CONDITIONS POSSIBLE IN LATE
NIGHT AND EARLY MORNING FOG.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...NONE.
GA...NONE.

&&

99

Hazardous weather outlook, Aug 6, 3:30 PM EDT, 3 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
330 PM EDT THU AUG 6 2015

GAZ040-063>065-077-SCZ018-020>022-025>031-035>038-041-071930-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-MCCORMICK-NEWBERRY-
FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-RICHLAND-LEE-AIKEN-
SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-BAMBERG-
330 PM EDT THU AUG 6 2015

...SEVERE THUNDERSTORM WATCH 475 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.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.

SCZ015-016-071930-
LANCASTER-CHESTERFIELD-
330 PM EDT THU AUG 6 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.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

Local storm report, Aug 6, 6:21 PM EDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
621 PM EDT THU AUG 6 2015

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

0605 PM     TSTM WND DMG     4 SSE PELION            33.73N 81.22W
08/06/2015                   LEXINGTON          SC   TRAINED SPOTTER

            2 TREES IN ROADWAY US 178 SOUTH OF PELION.
            TIME ESTIMATED BY RADAR.

&&

DA

Local storm report, Aug 6, 6:25 PM EDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
625 PM EDT THU AUG 6 2015

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

0606 PM     TSTM WND DMG     3 N GASTON              33.86N 81.10W
08/06/2015                   LEXINGTON          SC   UTILITY COMPANY

            SCE&G REPORTED POWERLINES DOWN AND OUTAGES
            BETWEEN DIXIANA AND GASTON ON BUSBEE ROAD.

&&

WRS

Local storm report, Aug 6, 6:30 PM EDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
630 PM EDT THU AUG 6 2015

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

0554 PM     TSTM WND DMG     2 WNW OAK GROVE         34.00N 81.18W
08/06/2015                   LEXINGTON          SC   LAW ENFORCEMENT

            TREES IN ROADWAY I20 EB BETWEEN US 378 AND
            US1. TIME ESTIMATED BY RADAR.

&&

DA

Local storm report, Aug 6, 6:40 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
640 PM EDT THU AUG 6 2015

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

0535 PM     FLASH FLOOD      1 WSW FOREST ACRES      34.02N 80.99W
08/06/2015                   RICHLAND           SC   PUBLIC

            ROAD FLOODING AT THE INTERSECTION OF FOREST
            DRIVE AND HARRISON ROAD.

&&

MJP

Local storm report, Aug 6, 6:51 PM EDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
651 PM EDT THU AUG 6 2015

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

0624 PM     TSTM WND DMG     SNELLING                33.24N 81.46W
08/06/2015                   BARNWELL           SC   911 CALL CENTER

            DISPATCH REPORTED POWERLINES DOWN IN
            SNELLING.

&&

WRS

Special weather statement, Aug 6, 6:51 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
651 PM EDT THU AUG 6 2015

SCZ015-016-021-022-027>029-031-038-062345-
LEXINGTON-LEE-CLARENDON-RICHLAND-FAIRFIELD-SUMTER-CHESTERFIELD-
LANCASTER-KERSHAW-
651 PM EDT THU AUG 6 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT LEE...EAST CENTRAL
LEXINGTON...NORTHEASTERN CLARENDON...SOUTHEASTERN FAIRFIELD...
SUMTER...SOUTHEASTERN LANCASTER...KERSHAW...NORTHEASTERN RICHLAND AND
CHESTERFIELD COUNTIES...

AT 650 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM 8 MILES SOUTHEAST OF PAGELAND TO NEAR SOUTH
CONGAREE...AND MOVING EAST AT 25 MPH.

WIND GUSTS OF 35 TO 45 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
COLUMBIA...SUMTER...CAYCE...FOREST ACRES...CAMDEN...CHERAW...
BISHOPVILLE...DENTSVILLE...WOODFIELDS...SOUTH SUMTER...PAGELAND...
PINE RIDGE...KERSHAW...CHESTERFIELD...ELGIN...ARCADIA LAKES...
EASTOVER...MILLWOOD...FORT JACKSON AND LUGOFF.

LAT...LON 3384 7990 3390 8110 3482 8043 3480 7993
      3449 7991 3449 8005 3436 8029 3432 8024
      3437 8018 3432 8017 3423 8011 3415 8015
      3399 7989 3395 7998 3388 7994 3389 7988
TIME...MOT...LOC 2250Z 266DEG 9KT 3470 8026 3388 8113

!

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 8:00 PM EDT	Special Weather Statement	CAE	Lexington	60 min
Aug 6, 1:31 PM EDT	Special Weather Statement	CAE	Lancaster, Newberry	59 min
Aug 6, 2:27 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield	33 min
Aug 6, 2:56 PM EDT	Severe Thunderstorm Warning	CAE	Newberry	34 min
Aug 6, 3:00 PM EDT	Special Weather Statement	CAE	Chesterfield, Fairfield, Lancaster	60 min
Aug 6, 3:55 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Newberry, Richland, Saluda	35 min
Aug 6, 4:06 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	54 min
Aug 6, 4:32 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Fairfield, Kershaw, Lee, Lexington, Richland and 1 more	58 min
Aug 6, 4:50 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Edgefield, Lexington, McCormick, Saluda	55 min
Aug 6, 5:07 PM EDT	Special Weather Statement	CAE	Newberry	38 min
Aug 6, 5:12 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, Fairfield, Lexington, McCormick, Newberry, Richland and 1 more	48 min
Aug 6, 5:32 PM EDT	Flash Flood Warning	CAE	Lexington, Richland	118 min
Aug 6, 5:36 PM EDT	Special Weather Statement	CAE	Lee, Richland, Sumter	54 min
Aug 6, 5:46 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland, Sumter	44 min
Aug 6, 5:48 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Edgefield, Lexington, Orangeburg and 1 more	57 min
Aug 6, 6:01 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	44 min
Aug 6, 6:35 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	40 min
Aug 6, 6:42 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg	33 min
Aug 6, 6:43 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg	47 min
Aug 6, 6:49 PM EDT	Areal Flood Advisory	CAE	Aiken, Calhoun, Lexington, Orangeburg, Richland	116 min
Aug 6, 7:03 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee	42 min
Aug 6, 7:16 PM EDT	Special Weather Statement	CAE	Clarendon, Orangeburg	59 min
Aug 6, 7:29 PM EDT	Flash Flood Warning	CAE	Lexington, Richland	2 hr
Aug 6, 4:38 PM EDT	Severe Thunderstorm Warning	CAE	McDuffie	37 min

Nearby

Special Weather Statements in South Carolina, 2015 Every special weather statement 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.