Alert archive / South Carolina / Tornado Warnings in 2011
Tornado Warning 3, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Apr 5, 2011, 4:39 AM EDT for Allendale County, Colleton County, Hampton County, South Carolina. It was in force for 40 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
- Apr 5, 2011, 4:39 AM EDT (08:39 UTC)
- Expired
- Apr 5, 2011, 5:19 AM EDT
- In force
- 40 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Allendale County, SC, Colleton County, SC, Hampton County, SC
The radar
The Charleston,SC radar (KCLX), 45 km from the middle of the area, began a volume at 08:40 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 |
|---|---|---|---|
| Apr 5, 5:08 AM EDT | TSTM WND DMG | 2 Ene Ashton, SC | 3 TREES DOWN NEAR INTERSECTION OF HWY 64 AND HWY 641. |
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 |
|---|---|---|---|
| Apr 5, 2:41 AM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 8.7 hours before the alert went out and 89 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
- 106 J/kg
- Mixed-layer CIN
- -189 J/kg
- Mixed-layer LCL
- 1161 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
944
WFUS52 KCHS 050839
TORCHS
SCC005-029-049-050930-
/O.NEW.KCHS.TO.W.0003.110405T0839Z-110405T0930Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
439 AM EDT TUE APR 5 2011
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...
NORTHERN COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA...
NORTHERN HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 530 AM EDT
* AT 438 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO...NEAR BARTON...
MOVING EAST AT 60 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...
BARTON...FAIRFAX...BRUNSON...HAMPTON...CROCKETVILLE...MILEY...
ASHTON...LODGE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS TORNADO MAY BE WRAPPED IN RAIN AND NOT EASILY SEEN. IF YOU WAIT
UNTIL YOU SEE OR HEAR IT COMING IT MAY BE TOO LATE. TAKE SHELTER NOW.
&&
LAT...LON 3295 8142 3307 8113 3303 8107 3310 8095
3307 8090 3309 8089 3313 8089 3318 8080
3316 8071 3307 8062 3306 8053 3301 8047
3279 8134
TIME...MOT...LOC 0840Z 251DEG 51KT 3291 8126
$$4 follow-up statements
791
WWUS52 KCHS 050854
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
454 AM EDT TUE APR 5 2011
SCC005-029-049-050930-
/O.CON.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
ALLENDALE SC-HAMPTON SC-COLLETON SC-
454 AM EDT TUE APR 5 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM EDT FOR NORTHERN
COLLETON...NORTH CENTRAL HAMPTON AND EAST CENTRAL ALLENDALE
COUNTIES...
AT 449 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR JENNYS...OR ABOUT
7 MILES NORTH OF HAMPTON...MOVING EAST AT 60 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM EDT TUESDAY MORNING
FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
&&
LAT...LON 3316 8072 3307 8062 3305 8054 3301 8047
3284 8119 3293 8121 3307 8113 3303 8107
3310 8095 3307 8090 3309 8089 3313 8089
3318 8080
TIME...MOT...LOC 0853Z 248DEG 53KT 3300 8104
$$866
WWUS52 KCHS 050904
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
504 AM EDT TUE APR 5 2011
SCC005-050914-
/O.CAN.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
ALLENDALE SC-
504 AM EDT TUE APR 5 2011
...THE TORNADO WARNING FOR EAST CENTRAL ALLENDALE COUNTY HAS BEEN
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM EDT TUESDAY MORNING
FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
LAT...LON 3316 8072 3307 8062 3301 8047 3288 8107
3299 8105 3302 8105 3310 8095 3307 8090
3309 8089 3313 8089 3318 8080
TIME...MOT...LOC 0904Z 248DEG 53KT 3306 8086
$$
SCC029-049-050930-
/O.CON.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
HAMPTON SC-COLLETON SC-
504 AM EDT TUE APR 5 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM EDT FOR NORTHERN
COLLETON AND NORTH CENTRAL HAMPTON COUNTIES...
AT 458 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ASHTON...OR ABOUT
14 MILES NORTHEAST OF HAMPTON...MOVING EAST AT 60 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH TWITTER USING
#WXREPORT.
&&
LAT...LON 3316 8072 3307 8062 3301 8047 3288 8107
3299 8105 3302 8105 3310 8095 3307 8090
3309 8089 3313 8089 3318 8080
TIME...MOT...LOC 0904Z 248DEG 53KT 3306 8086
$$118
WWUS52 KCHS 050910
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
510 AM EDT TUE APR 5 2011
SCC049-050920-
/O.CAN.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
HAMPTON SC-
510 AM EDT TUE APR 5 2011
...THE TORNADO WARNING FOR NORTH CENTRAL HAMPTON COUNTY HAS BEEN
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM EDT TUESDAY MORNING
FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
LAT...LON 3316 8072 3307 8064 3305 8061 3294 8090
3298 8092 3304 8092 3304 8090 3313 8089
3318 8080
TIME...MOT...LOC 0910Z 248DEG 53KT 3309 8076
$$
SCC029-050930-
/O.CON.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
COLLETON SC-
510 AM EDT TUE APR 5 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM EDT FOR NORTH
CENTRAL COLLETON COUNTY...
AT 507 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR SMOAKS...OR ABOUT
14 MILES NORTHWEST OF WALTERBORO...MOVING EAST AT 60 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CANADYS...
COLLETON...PADGETTS...RUFFIN...SMOAKS AND WILLIAMS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...STRONG
ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY BE OCCURRING
OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS
DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE
BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER
UNDER A HIGHWAY OVERPASS.
&&
LAT...LON 3316 8072 3307 8064 3305 8061 3294 8090
3298 8092 3304 8092 3304 8090 3313 8089
3318 8080
TIME...MOT...LOC 0910Z 248DEG 53KT 3309 8076
$$601
WWUS52 KCHS 050919
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
519 AM EDT TUE APR 5 2011
SCC029-050929-
/O.CAN.KCHS.TO.W.0003.000000T0000Z-110405T0930Z/
COLLETON SC-
519 AM EDT TUE APR 5 2011
...THE TORNADO WARNING FOR NORTH CENTRAL COLLETON COUNTY HAS BEEN
CANCELLED...
AT 516 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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM EDT TUESDAY MORNING
FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
LAT...LON 3316 8072 3307 8064 3305 8061 3294 8090
3298 8092 3304 8092 3304 8090 3313 8089
3318 8080
TIME...MOT...LOC 0919Z 248DEG 53KT 3314 8061
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 3:31 AM EDT | Severe Thunderstorm Warning | CHS | Allendale | 59 min |
| Apr 5, 3:58 AM EDT | Severe Thunderstorm Warning | CHS | Allendale, Hampton | 62 min |
| Apr 5, 4:34 AM EDT | Severe Thunderstorm Warning | CHS | Allendale, Beaufort, Colleton, Dorchester, Hampton, Jasper | 56 min |
| Apr 5, 4:46 AM EDT | Special Weather Statement | CHS | Beaufort | 29 min |
| Apr 5, 4:49 AM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 56 min |
| Apr 5, 5:08 AM EDT | Special Weather Statement | CHS | Berkeley | 37 min |
| Apr 5, 5:25 AM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Berkeley, Charleston, Colleton, Dorchester | 65 min |
| Apr 5, 5:44 AM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 61 min |
| Apr 5, 10:34 AM EDT | Lake Wind Advisory | CHS | Berkeley | 9 hr |
Nearby
Tornado Warnings in South Carolina, 2011Every tornado warning in 2011Tornadoes in 2011
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.