Alert archive / South Carolina / Tornado Warnings in 2007

Tornado Warning 18, NWS Charleston, SC

July 11, 2007Berkeley County, Charleston County, South Carolina

NWS Charleston, SC issued this tornado warning at Jul 11, 2007, 6:11 PM EDT for Berkeley County, Charleston 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 11, 2007, 6:11 PM EDT (22:11 UTC)
Expired: Jul 11, 2007, 7:00 PM EDT
In force: 49 min
Issued by: NWS Charleston, SC
Area: Counties, with a storm outline in the text

Counties Berkeley County, SC, Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 99 km from the middle of the area, began a volume at 22:12 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 11, 6:15 PM EDT	FUNNEL CLOUD	1 N Goose Creek, SC	FUNNEL CLOUD SPOTTED ONE MILE NORTH OF GOOSE CREEK.

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 11, 4:01 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.2 hours before the alert went out and 7 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: 2156 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1033 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 70 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.

000 
WFUS52 KCHS 112212
TORCHS
SCC015-019-112300-
/O.NEW.KCHS.TO.W.0018.070711T2211Z-070711T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
611 PM EDT WED JUL 11 2007

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR...
  BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...
  CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 700 PM EDT

* AT 607 PM EDT...THE PUBLIC REPORTED A POSSIBLE TORNADO NEAR        
  NORTHWOODS MALL IN NORTH CHARLESTON...MOVING EAST AT 35 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
  LADSON...COLLEGE PARK...
  GOOSE CREEK...HANAHAN...
  WANDO...CAINHOY...

TAKE COVER NOW IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY
BE TOO LATE TO GET TO A SAFE PLACE

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR POSSIBLE.
AVOID WINDOWS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A REINFORCED BUILDING. AS
A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND
COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.

LAT...LON 3287 8017 3290 8013 3289 8009 3292 8008
      3300 8017 3302 8016 3304 8016 3310 7965
      3290 7963

$$

JAQ

1 follow-up statement

000 
WWUS52 KCHS 112253
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
650 PM EDT WED JUL 11 2007

SCC015-019-112300-
/O.EXP.KCHS.TO.W.0018.000000T0000Z-070711T2300Z/
BERKELEY SC-CHARLESTON SC-
650 PM EDT WED JUL 11 2007

...THE TORNADO WARNING FOR BERKELEY AND NORTHERN CHARLESTON COUNTIES 
WILL EXPIRE AT 700 PM EDT...

AT 650 PM EDT...RADAR INDICATED THAT POTENTIAL TORNADIC THUNDERSTORM 
THAT PROMPTED THE WARNING WEAKEND...AND WAS NO LONGER CAPABLE OF 
PRODUCING TORNADOES. THE TORNADO WARNING HAS THEREFORE BEEN ALLOWED 
TO EXPIRE.

THE SEVERE WEATHER THREAT HAS ENDED IN BERKELEY COUNTY...HOWEVER 
STRONG THUNDERSTORMS ARE EXPECTED TO CONTINUE IN NORTHERN CHARLESTON 
COUNTY WITH WINDS OF 45 TO 55 MPH THROUGH 730 PM.

TO REPORT SEVERE WEATHER OR STORM RELATED DAMAGE ONLY...PLEASE 
CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 
1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV.

LAT...LON 3287 8017 3290 8013 3289 8009 3292 8008
      3300 8017 3302 8016 3304 8016 3310 7965
      3290 7963

$$

JAQ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 4:09 PM EDT	Severe Thunderstorm Warning	CHS	Allendale	51 min
Jul 11, 5:05 PM EDT	Severe Thunderstorm Warning	CHS	Hampton, Jasper	55 min
Jul 11, 5:14 PM EDT	Severe Thunderstorm Warning	CHS	Dorchester	46 min
Jul 11, 5:21 PM EDT	Severe Thunderstorm Warning	CHS	Colleton	39 min
Jul 11, 5:25 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley	65 min
Jul 11, 5:29 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	46 min
Jul 11, 6:01 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Dorchester	41 min
Jul 11, 6:20 PM EDT	Tornado Warning	CHS	Charleston	40 min

Nearby

Tornado Warnings in South Carolina, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.