Alert archive / South Carolina / Tornado Warnings in 2004

Tornado Warning 45, NWS Charleston, SC

September 7, 2004Allendale County, South Carolina

NWS Charleston, SC issued this tornado warning at Sep 7, 2004, 5:09 AM EDT for Allendale County, South Carolina. It was in force for 21 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
Sep 7, 2004, 5:09 AM EDT (09:09 UTC)
Expired
Sep 7, 2004, 5:30 AM EDT
In force
21 min
Issued by
NWS Charleston, SC
Area
Counties, with a storm outline in the text

County Allendale County, SC

The watch it was issued in

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

IssuedProductOfficeLasted
Sep 7, 4:00 AM EDTTornado WatchSPC10 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 9.2 hours before the alert went out and 127 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2004-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1460 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2004-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1460 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
474 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

209 
WFUS52 KCHS 070909
TORCHS
SCC005-070930-
/X.NEW.KCHS.TO.W.0029.040907T0909Z-040907T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
509 AM EDT TUE SEP 7 2004

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR...
  ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 530 AM EDT

* AT 505 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR            
  ALLENDALE......MOVING NORTHWEST AT 40 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...         
  APPLETON...
  SEIGLING...
  BALDOCK...

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.

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

LAT...LON 3294 8140 3301 8120 3318 8127 3320 8149

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 8:06 PM EDTTornado WarningCHSColleton39 min
Sep 7, 12:58 AM EDTTornado WarningCHSBerkeley47 min
Sep 7, 2:29 AM EDTTornado WarningCHSDorchester46 min
Sep 7, 2:40 AM EDTTornado WarningCHSJasper35 min
Sep 7, 3:13 AM EDTTornado WarningCHSBeaufort, Jasper32 min
Sep 7, 3:47 AM EDTTornado WarningCHSDorchester28 min
Sep 7, 5:37 AM EDTTornado WarningCHSAllendale23 min
Sep 7, 7:09 AM EDTTornado WarningCHSJasper36 min
Sep 7, 10:15 AM EDTSevere Thunderstorm WarningCHSBerkeley30 min
Sep 7, 11:13 AM EDTTornado WarningCHSBerkeley, Charleston32 min
Sep 7, 11:39 AM EDTTornado WarningCHSAllendale36 min
Sep 7, 12:00 PM EDTSpecial Marine WarningCHS90 min
Sep 7, 3:14 PM EDTTornado WarningCHSHampton31 min
Sep 7, 3:31 PM EDTTornado WarningCHSAllendale14 min

Nearby

Tornado Warnings in South Carolina, 2004Every tornado warning in 2004Tornadoes in 2004

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.