Alert archive / South Carolina / Tornado Warnings in 2007
Tornado Warning 20, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Jul 20, 2007, 8:28 PM EDT for Berkeley County, South Carolina. It was in force for 32 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
- Jul 20, 2007, 8:28 PM EDT (00:28 UTC)
- Expired
- Jul 20, 2007, 9:00 PM EDT
- In force
- 32 min
- Issued by
- NWS Charleston, SC
- Area
- Counties, with a storm outline in the text
County Berkeley County, SC
The radar
The Charleston,SC radar (KCLX), 109 km from the middle of the area, began a volume at 00:30 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 |
|---|---|---|---|
| Jul 20, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 0.5 hours before the alert went out and 32 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
- 4153 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1170 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -33 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KCHS 210028 TORCHS SCC015-210100- /O.NEW.KCHS.TO.W.0020.070721T0028Z-070721T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 828 PM EDT FRI JUL 20 2007 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * TORNADO WARNING FOR... BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA... * UNTIL 900 PM EDT * AT 825 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES WEST OF PINOPOLIS...OR ABOUT 10 MILES WEST OF MONCKS CORNER...MOVING SOUTHEAST AT 15 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE... PINOPOLIS... MONCKS CORNER... 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. TAKE COVER NOW IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024. LAT...LON 3322 7990 3302 8002 3319 8027 3327 8018 TIME...MOT...LOC 0028Z 296DEG 16KT 3320 8017 $$
3 follow-up statements
000 WWUS52 KCHS 210046 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 845 PM EDT FRI JUL 20 2007 SCC015-210100- /O.CON.KCHS.TO.W.0020.000000T0000Z-070721T0100Z/ BERKELEY SC- 845 PM EDT FRI JUL 20 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR BERKELEY COUNTY... AT 839 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS THUNDERSTORM WAS LOCATED NEAR MURRAYSVILLE...OR ABOUT OVER MONCKS CORNER...MOVING SOUTHEAST AT 25 MPH. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MONCKS CORNER AND PINOPOLIS. TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. LAT...LON 3322 7990 3302 8002 3319 8027 3327 8018 TIME...MOT...LOC 0045Z 295DEG 23KT 3316 8004 $$
000 WWUS52 KCHS 210052 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 849 PM EDT FRI JUL 20 2007 SCC015-210100- /O.CON.KCHS.TO.W.0020.000000T0000Z-070721T0100Z/ BERKELEY SC- 849 PM EDT FRI JUL 20 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR BERKELEY COUNTY... AT 844 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS THUNDERSTORM WAS LOCATED NEAR WHITESVILLE...OR ABOUT OVER MONCKS CORNER...MOVING SOUTHEAST AT 25 MPH. THIS STORM CAN ALSO PRODUCE GOLF BALL SIZE HAIL AND WINDS IN EXCESS OF 60 MPH. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MONCKS CORNER AND PINOPOLIS. 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 3322 7990 3302 8002 3319 8027 3327 8018 TIME...MOT...LOC 0049Z 295DEG 23KT 3315 8001 $$
000 WWUS52 KCHS 210103 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 902 PM EDT FRI JUL 20 2007 SCC015-210112- /O.EXP.KCHS.TO.W.0020.000000T0000Z-070721T0100Z/ BERKELEY SC- 902 PM EDT FRI JUL 20 2007 ...THE TORNADO WARNING FOR BERKELEY COUNTY WILL EXPIRE AT 900 PM EDT... AT 859 PM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM THAT PROMPTED THE WARNING WEAKENED...AND WAS NO LONGER CAPABLE OF PRODUCING TORNADOES. THE TORNADO WARNING HAS THEREFORE BEEN ALLOWED TO EXPIRE. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS OR THE LOCAL MEDIA FOR ADDITIONAL SEVERE WEATHER INFORMATION. TO REPORT SEVERE WEATHER ONLY...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. LAT...LON 3322 7990 3302 8002 3319 8027 3327 8018 TIME...MOT...LOC 0052Z 295DEG 23KT 3314 7999 $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 8:08 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 52 min |
| Jul 20, 8:45 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 45 min |
| Jul 20, 8:59 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 46 min |
| Jul 20, 9:43 PM EDT | Severe Thunderstorm Warning | CHS | Charleston | 47 min |
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.