Alert archive / South Carolina / Tornado Warnings in 2007
Tornado Warning 12, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Apr 15, 2007, 7:39 AM EDT for Allendale County, South Carolina. It was in force for 36 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, 7:39 AM EDT (11:39 UTC)
- Expired
- Apr 15, 2007, 8:15 AM EDT
- In force
- 36 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), 42 km from the middle of the area, began a volume at 11:39 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, 11.7 hours before the alert went out and 124 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 151140 TORCHS SCC005-151215- /O.NEW.KCHS.TO.W.0012.070415T1139Z-070415T1215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 739 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 815 AM EDT * AT 735 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES SOUTHWEST OF BARTON...OR ABOUT 12 MILES SOUTHWEST OF ALLENDALE... MOVING NORTHEAST AT 40 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE... BARTON... FAIRFAX...ALLENDALE... 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. TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024. LAT...LON 3289 8147 3282 8139 3303 8107 3312 8123 $$
2 follow-up statements
000 WWUS52 KCHS 151155 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 755 AM EDT SUN APR 15 2007 SCC005-151215- /O.CON.KCHS.TO.W.0012.000000T0000Z-070415T1215Z/ ALLENDALE SC- 755 AM EDT SUN APR 15 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM EDT FOR ALLENDALE COUNTY... AT 753 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR FAIRFAX...OR ABOUT 6 MILES SOUTHEAST OF ALLENDALE...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FAIRFAX... SYCAMORE AND ULMER. WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. LAT...LON 3296 8130 3292 8124 3303 8107 3311 8120 $$
000 WWUS52 KCHS 151210 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 811 AM EDT SUN APR 15 2007 SCC005-151221- /O.EXP.KCHS.TO.W.0012.000000T0000Z-070415T1215Z/ ALLENDALE SC- 811 AM EDT SUN APR 15 2007 ...THE TORNADO WARNING FOR ALLENDALE COUNTY WILL EXPIRE AT 815 AM EDT... AT 810 AM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED AREA...THUS THE TORNADO WARNING BEEN ALLOWED TO EXPIRE. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS...TV OR YOUR LOCAL NEWS SOURCE FOR THE LATEST WEATHER INFORMATION. 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 3296 8130 3292 8124 3303 8107 3311 8120 $$
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, 4:23 AM EDT | Tornado Warning | CHS | Allendale | 27 min |
| Apr 15, 7:02 AM EDT | Tornado Warning | CHS | Allendale | 13 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.