Alert archive / South Carolina / Tornado Warnings in 2010

Tornado Warning 13, NWS Columbia, SC

July 12, 2010Calhoun County, Clarendon County, Orangeburg County, South Carolina

NWS Columbia, SC issued this tornado warning at Jul 12, 2010, 5:26 PM EDT for Calhoun County, Clarendon County, Orangeburg County, South Carolina. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 12, 2010, 5:26 PM EDT (21:26 UTC)
Expired: Jul 12, 2010, 6:15 PM EDT
In force: 49 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Calhoun County, SC, Clarendon County, SC, Orangeburg County, SC

The radar

The Columbia radar (KCAE), 86 km from the middle of the area, began a volume at 21:29 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.

What was reported inside it

Time	Report	Where	Remark
Jul 12, 5:50 PM EDT	TSTM WND DMG	Manning, SC	TREE DOWN ON US HWY 301 N NEAR MANNING. REPORTED BY SCHP. TIME ESTIMATED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 12, 1:14 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.4 hours before the alert went out and 89 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: 2479 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 525 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 48 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.

884 
WFUS52 KCAE 122126
TORCAE
SCC017-027-075-122215-
/O.NEW.KCAE.TO.W.0013.100712T2126Z-100712T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
526 PM EDT MON JUL 12 2010

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHEASTERN CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA
  EASTERN ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 615 PM EDT

* AT 521 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ELLOREE...
  OR ABOUT 20 MILES EAST OF BROOKDALE...MOVING NORTHEAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUMMERTON AND MANNING

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. 

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A 
SUBSTANTIAL SHELTER. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

&&

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 3392 8000 3353 8011 3338 8052 3359 8063
TIME...MOT...LOC 2126Z 243DEG 17KT 3350 8046

$$

TTH

1 follow-up statement

383 
WWUS52 KCAE 122148
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
548 PM EDT MON JUL 12 2010

SCC017-027-075-122215-
/O.CON.KCAE.TO.W.0013.000000T0000Z-100712T2215Z/
CLARENDON SC-CALHOUN SC-ORANGEBURG SC-
548 PM EDT MON JUL 12 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR
ORANGEBURG...CALHOUN AND CLARENDON COUNTIES...

AT 542 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO ABOUT 5 MILES NORTHEAST OF MANNING. THIS
STORM WAS MOVING NORTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TURBEVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

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

&&

LAT...LON 3392 8000 3353 8011 3338 8052 3359 8063
TIME...MOT...LOC 2148Z 243DEG 17KT 3355 8035

$$

TTH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 1:57 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	63 min
Jul 12, 2:55 PM EDT	Tornado Warning	CAE	Chesterfield, Lancaster	50 min
Jul 12, 3:03 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	42 min
Jul 12, 3:18 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	57 min
Jul 12, 3:20 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	40 min
Jul 12, 3:31 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Orangeburg	44 min
Jul 12, 3:45 PM EDT	Severe Thunderstorm Warning	CAE	Richland, Sumter	45 min
Jul 12, 3:49 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	41 min
Jul 12, 4:12 PM EDT	Tornado Warning	CAE	Lancaster	48 min
Jul 12, 4:20 PM EDT	Tornado Warning	CAE	Richland, Sumter	25 min
Jul 12, 4:26 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	49 min
Jul 12, 4:30 PM EDT	Severe Thunderstorm Warning	CAE	Richland, Sumter	45 min
Jul 12, 4:37 PM EDT	Areal Flood Advisory	CAE	Richland, Sumter	113 min
Jul 12, 4:44 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Orangeburg, Richland	46 min
Jul 12, 4:58 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg, Sumter	62 min
Jul 12, 5:13 PM EDT	Tornado Warning	CAE	Clarendon, Lee, Sumter	47 min
Jul 12, 5:17 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Orangeburg	20 min
Jul 12, 5:53 PM EDT	Areal Flood Advisory	CAE	Calhoun, Clarendon, Kershaw, Lee, Orangeburg, Richland and 1 more	112 min

Nearby

Tornado Warnings in South Carolina, 2010 Every tornado warning in 2010 Tornadoes in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.