Alert archive / South Carolina / Tornado Warnings in 2007
Tornado Warning 10, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Apr 15, 2007, 4:23 AM EDT for Allendale County, South Carolina. It was in force for 27 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
- Apr 15, 2007, 4:23 AM EDT (08:23 UTC)
- Expired
- Apr 15, 2007, 4:50 AM EDT
- In force
- 27 min
- Issued by
- NWS Charleston, SC
- Area
- Counties, with a storm outline in the text
County Allendale County, SC
The radar
The Charleston,SC radar (KCLX), 48 km from the middle of the area, began a volume at 08:25 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 15, 2:01 AM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 8.4 hours before the alert went out and 125 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.
- Mixed-layer CAPE
- 329 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS52 KCHS 150823
TORCHS
SCC005-150900-
/O.NEW.KCHS.TO.W.0010.070415T0823Z-070415T0900Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
423 AM EDT SUN APR 15 2007
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* TORNADO WARNING FOR...
ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 500 AM EDT
* AT 422 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES
SOUTHWEST OF APPLETON...OR ABOUT 8 MILES SOUTHWEST OF ALLENDALE...
MOVING NORTHEAST AT 40 MPH.
* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
ALLENDALE...APPLETON...
SEIGLING...FAIRFAX...
SYCAMORE...
ULMER...
A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES. MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST
FLOOR. STAY AWAY FROM WINDOWS.
TORNADOES AT NIGHT ARE ESPECIALLY DANGEROUS. DO NOT WAIT UNTIL YOU
SEE OR HEAR IT COMING...IT MAY BE TOO LATE. TAKE COVER NOW
TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.
LAT...LON 3297 8149 3288 8140 3302 8109 3312 8119
3310 8136
$$2 follow-up statements
000
WWUS52 KCHS 150838
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
436 AM EDT SUN APR 15 2007
SCC005-150900-
/O.CON.KCHS.TO.W.0010.000000T0000Z-070415T0900Z/
ALLENDALE SC-
436 AM EDT SUN APR 15 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 AM EDT FOR ALLENDALE
COUNTY...
AT 436 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR SEIGLING...MOVING
NORTHEAST AT 40 MPH.
THIS TORNADO WILL PASS NEAR SYCAMORE AND ULMER BY 445 AM.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.
LAT...LON 3302 8133 3297 8131 3305 8111 3312 8119
3306 8133
$$000
WWUS52 KCHS 150850
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
450 AM EDT SUN APR 15 2007
SCC005-150900-
/O.CAN.KCHS.TO.W.0010.000000T0000Z-070415T0900Z/
ALLENDALE SC-
450 AM EDT SUN APR 15 2007
...THE TORNADO WARNING FOR ALLENDALE COUNTY HAS BEEN CANCELLED...
AT 450 AM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH
PROMPTED THE TORNADO WARNING HAD MOVED OUT OF THE WARNED AREA...THUS
THE WARNING HAS BEEN CANCELED.
TO REPORT SEVERE WEATHER 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 3302 8133 3297 8131 3305 8111 3312 8119
3306 8133
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 1:45 AM EDT | Tornado Warning | CHS | Berkeley | 30 min |
| Apr 15, 3:37 AM EDT | Severe Thunderstorm Warning | CHS | Allendale | 38 min |
| Apr 15, 3:44 AM EDT | Tornado Warning | CHS | Allendale | 31 min |
| Apr 15, 7:02 AM EDT | Tornado Warning | CHS | Allendale | 13 min |
| Apr 15, 7:39 AM EDT | Tornado Warning | CHS | Allendale | 36 min |
| Apr 15, 9:38 AM EDT | Tornado Warning | CHS | Colleton | 39 min |
| Apr 15, 10:03 AM EDT | Tornado Warning | CHS | Dorchester | 27 min |
| Apr 15, 10:21 AM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 39 min |
| Apr 15, 10:35 AM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 40 min |
| Apr 15, 10:59 AM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 91 min |
| Apr 15, 11:14 AM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 37 min |
| Apr 15, 4:02 PM EDT | Fire Weather Watch | CHS | Allendale, Berkeley, Colleton, Dorchester, Hampton | 13 hr |
Nearby
Tornado Warnings in South Carolina, 2007Every tornado warning in 2007Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.