Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 124, NWS Columbia, SC

June 2, 2011Clarendon County, Orangeburg County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 2, 2011, 10:35 PM EDT for Clarendon County, Orangeburg 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 outline as issued.

The facts

Issued: Jun 2, 2011, 10:35 PM EDT (02:35 UTC)
Expired: Jun 2, 2011, 11:15 PM EDT
In force: 40 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Clarendon County, SC, Orangeburg County, SC

The radar

The Columbia radar (KCAE), 99 km from the middle of the area, began a volume at 02:36 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 2.6 hours before the alert went out and 61 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: 3829 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1081 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

883 
WUUS52 KCAE 030235
SVRCAE
SCC027-075-030315-
/O.NEW.KCAE.SV.W.0124.110603T0235Z-110603T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1035 PM EDT THU JUN 2 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHEASTERN ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 1115 PM EDT

* AT 1028 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  EAST OF HOLLY HILL...OR 17 MILES NORTHEAST OF SAINT GEORGE...AND
  MOVING SOUTHEAST AT 35 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE HOLLY HILL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR LAKE MARION...GET OUT OF THE WATER AND MOVE INDOORS OR 
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES 
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE 
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. 
DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.

&&

LAT...LON 3350 8010 3349 8014 3346 8014 3345 8022
      3340 8021 3338 8024 3333 8024 3327 8033
      3327 8035 3326 8037 3326 8041 3329 8047
      3333 8049 3333 8052 3339 8055 3356 8023
      3353 8009
TIME...MOT...LOC 0235Z 329DEG 35KT 3324 8027

$$

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 Jun 2, 10:17 PM EDT, 18 minutes earlier.

Area forecast discussion, Jun 2, 10:17 PM EDT, 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
1017 PM EDT THU JUN 2 2011

.SYNOPSIS...
AN UPPER LEVEL RIDGE WILL REMAIN OVER THE REGION...KEEPING ABOVE
NORMAL TEMPERATURES ACROSS THE AREA. A WEAK COLD FRONT ACROSS THE
AREA THIS EVENING WILL MOVE SLOWLY SOUTH THROUGH FRIDAY.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
AIRMASS BECAME VERY UNSTABLE OVER THE REGION THIS AFTERNOON. LAPS
BSCAPES WERE AROUND 4500 J/KG AND LAPS LIS -9/-10. LARGE DEVELOPING
MCS COMPLEX MOVING SOUTH AND SOUTHEAST INTO FORECAST AREA. GSP HAD
SEVERAL SVR WARNINGS TO THE NORTH AND CAE ISSUED SOME AS WELL.
SEVERAL BOUNDARIES...OUTFLOWS FROM STORMS...A WEAK FRONTAL
BOUNDARY AND POSSIBLY A SEA BREEZE SERVED AS FOCUS MECHANISMS FOR
STORM DEVELOPMENT DURING THE LATE AFTERNOON AND EARLY EVENING HOURS
ACROSS THE FORECAST AREA. UPPED POPS TO 40-50 PERCENT IN SOME
PARTS OF THE FORECAST AREA BUT ACTIVITY HAS DECREASED OVER PAST
HOUR. SO 20-30 PERCENT CHANCE UNTIL 12AM-1AM SHOULD HOLD MOST
LOCATIONS. WITH RAINFALL...DECIDED TO INCLUDE SOME PATCHY FOG
AROUND SUNRISE FRIDAY.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
FRONT WILL REMAIN NEARLY STATIONARY NEAR THE NORTHERN PART OF OUR FA
FRIDAY...OR PERHAPS PUSH SOUTH A LITTLE. MODELS INDICATE UPPER HIGH
CENTERED TO OUR WEST...WITH SIGNIFICANT SHORTWAVE ENERGY ROTATING
SOUTH INTO OUR REGION FRIDAY AFTERNOON AND EVENING. COMBINATION OF
FRONT AND SEA BREEZE BOUNDARIES...SUFFICIENT ATMOSPHERIC
MOISTURE...DAYTIME HEATING...AND UPPER LIFT WILL LEAD TO SCATTERED
THUNDERSTORMS.

UPPER ENERGY WILL PUSH TO OUR SOUTH SATURDAY...AND UPPER HIGH WILL
BUILD TO THE EAST SOME. ATMOSPHERE ALSO APPEARS WILL BE A LITTLE
DRIER. SO POPS WILL BE REDUCED TO SLIGHT CHANCE SATURDAY.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
ON SUNDAY AND MONDAY...THE UPPER HIGH WILL RETREAT A LITTLE TO THE
WEST WHILE UPPER ENERGY SHIFTS DOWN THE EAST COAST AND MID
ATLANTIC...STAYING MAINLY TO OUR N/NE. ATMOSPHERIC MOISTURE APPEARS
TO GRADUALLY PICK BACK UP A TAD...THOUGH FORECAST SOUNDINGS STILL
INDICATE FAIRLY HIGH CONVECTIVE TEMPS AND LFCS. THINK SLIGHT CHANCE
POPS LOOKS OK.

BY MID WEEK...UPPER HIGH BUILDS BACK TO THE EAST A LITTLE...BUT
REMAINING GENERALLY WEAK...IN BETWEEN CLOSED LOWS OVER THE NW
ATLANTIC AND NORTHERN ROCKIES. APPEARANCE OF ONLY SUBTLE FEATURES AT
THE SURFACE THROUGH THE PERIOD. ATMOSPHERIC MOISTURE APPEARS TO
REMAIN FAIRLY CONSTANT...AND SUFFICIENT ENOUGH FOR SLIGHT CHANCE
POPS THROUGH THE PERIOD.

&&

.AVIATION /02Z FRIDAY THROUGH TUESDAY/...
THUNDERSTORM ACTIVITY HAS MAINLY MOVED TO THE SOUTH NOW. WITH
RAINFALL EXPECT SOME MVFR VSBYS IN FOG AROUND SUNRISE POSSIBLE
NEAR SUNRISE AND MAYBE SOME IFR VSBYS IN FOG AT NORMALLY LOWER
LOCATIONS LIKE AGS AND OGB. ALSO SOME SCATTERED TO BROKEN STRATUS
IS POSSIBLE NEAR 1 KFT AS NOCTURNAL JET MAY ADVECT SOME STRATUS IN
OVER THE REGION. AFTER 13Z FRIDAY...MAINLY VFR CONDITIONS BUT
AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE AGAIN WITH BRIEF
IFR-MVFR CONDITIONS.

EXTENDED AVIATION OUTLOOK...SOME MVFR FOG POSSIBLE EARLY MORNING.

&&

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

SYNOPSIS...
NEAR TERM...07
SHORT TERM...
LONG TERM...
AVIATION...07

Hazardous weather outlook, Jun 2, 4:34 AM EDT, 18 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
434 AM EDT THU JUN 2 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-030845-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
434 AM EDT THU JUN 2 2011

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

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE FOR ISOLATED SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AS A FRONTAL BOUNDARY STALLS OVER THE REGION.

HEAT INDICES WILL APPROACH 100 DEGREES 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

Local storm report, Jun 2, 9:30 PM EDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
930 PM EDT THU JUN 02 2011

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

0837 PM     TSTM WND GST     4 NE CAYCE              33.99N 81.00W
06/02/2011  M45 MPH          RICHLAND           SC   ASOS

            A WIND GUSTS OF 45 MPH WAS RECORDED AT COLUMBIA OWENS
            FIELD AIRPORT.

&&

VAUGHAN

Local storm report, Jun 2, 9:33 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
933 PM EDT THU JUN 2 2011

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

0835 PM     TSTM WND DMG     IRMO                    34.14N 81.20W
06/02/2011                   RICHLAND           SC   PUBLIC

            TREES DOWN.

&&

NNNN

Local storm report, Jun 2, 9:34 PM EDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
934 PM EDT THU JUN 02 2011

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

0830 PM     TSTM WND GST     5 WNW IRMO              34.11N 81.27W
06/02/2011  M53 MPH          RICHLAND           SC   OFFICIAL NWS OBS

            THE NWS STATION AT FLOTILLA ISLAND REPORTED A WIND GUST
            OF 53 MPH.

&&

VAUGHAN

Local storm report, Jun 2, 9:47 PM EDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
947 PM EDT THU JUN 02 2011

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

0836 PM     TSTM WND DMG     COLUMBIA                34.04N 80.89W
06/02/2011                   RICHLAND           SC   LAW ENFORCEMENT

            TREE IN ROADWAY NEAR SC 277 AND BULL ST REPORTED BY HWY
            PATROL

0846 PM     TSTM WND DMG     5 S CAYCE               33.88N 81.07W
06/02/2011                   LEXINGTON          SC   LAW ENFORCEMENT

            TREE IN ROADWAY NEAR US 321 AND GLENN RD REPORTED BY HWY
            PATROL

0832 PM     TSTM WND DMG     5 NW IRMO               34.15N 81.24W
06/02/2011                   RICHLAND           SC   LAW ENFORCEMENT

            TREES IN ROADWAY NEAR I-26 AND JULIUS RICHARDSON RD
            REPORTED BY HWY PATROL

0845 PM     TSTM WND DMG     2 ESE LEXINGTON         33.97N 81.20W
06/02/2011                   LEXINGTON          SC   LAW ENFORCEMENT

            TREE IN ROADWAY DOOLEY RD NEAR I-20 REPORTED BY HWY
            PATROL

&&

KILMER

Local storm report, Jun 2, 9:53 PM EDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
953 PM EDT THU JUN 02 2011

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

0923 PM     TSTM WND DMG     2 W DENMARK             33.32N 81.18W
06/02/2011                   BAMBERG            SC   LAW ENFORCEMENT

            HIGHWAY PATROL REPORTED TREE IN THE ROADWAY ALONG HIGHWAY
            70 WEST OF DENMARK.

&&

VAUGHAN

Local storm report, Jun 2, 10:33 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1033 PM EDT THU JUN 02 2011

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

0932 PM     TSTM WND DMG     4 WNW ST. MATTHEWS      33.68N 80.84W
06/02/2011                   CALHOUN            SC   LAW ENFORCEMENT

            TREES IN ROADWAY NEAR SC 6 AND US 176 REPORTED BY HWY
            PATROL.

0942 PM     TSTM WND DMG     NEESES                  33.54N 81.13W
06/02/2011                   ORANGEBURG         SC   LAW ENFORCEMENT

            TREES IN ROADWAY ON US 321 NEAR NEESES REPORTED BY HWY
            PATROL

0840 PM     TSTM WND DMG     6 E BLYTHEWOOD          34.22N 80.88W
06/02/2011                   RICHLAND           SC   LAW ENFORCEMENT

            TREES IN ROADWAY NEAR HINES RD AND SMYRNA RD REPORTED BY
            HWY PATROL

0949 PM     TSTM WND DMG     8 NW BROOKDALE          33.61N 80.92W
06/02/2011                   CALHOUN            SC   LAW ENFORCEMENT

            TREES IN ROADWAY REPORTED BY HWY PATRAL NEAR BURKE ROAD
            AND KINLEY

0925 PM     TSTM WND DMG     ORANGEBURG              33.49N 80.87W
06/02/2011                   ORANGEBURG         SC   LAW ENFORCEMENT

            TREES IN ROADWAY NEAR PRESIDENTIAL DRIVE AND MAGNOLIA
            REPORTED BY HWY PATROL

0915 PM     TSTM WND DMG     SALLEY                  33.57N 81.30W
06/02/2011                   AIKEN              SC   LAW ENFORCEMENT

            TREES IN ROADWAY ON BONNET RD REPORTED BY HWY PATROL

&&

KILMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 2, 8:37 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Calhoun, Lexington, Orangeburg, Richland, Sumter	53 min
Jun 2, 9:00 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Calhoun, Clarendon, Lexington and 3 more	45 min
Jun 2, 9:42 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Calhoun, Clarendon, Lexington and 3 more	48 min
Jun 2, 11:13 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell	62 min
Jun 3, 12:41 AM EDT	Special Weather Statement	CAE	Lexington	49 min
Jun 3, 2:34 AM EDT	Special Weather Statement	CAE	Lexington	41 min
Jun 3, 3:13 AM EDT	Special Weather Statement	CAE	Lexington, Saluda	62 min
Jun 3, 3:59 AM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Newberry	46 min
Jun 3, 4:26 AM EDT	Special Weather Statement	CAE	Lexington	49 min
Jun 3, 5:15 AM EDT	Special Weather Statement	CAE	Lexington	45 min
Jun 3, 6:03 AM EDT	Severe Thunderstorm Warning	CAE	Fairfield	42 min
Jun 3, 6:48 AM EDT	Special Weather Statement	CAE	Fairfield	42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Every severe thunderstorm warning in 2011

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.