Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 47, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Apr 5, 2012, 6:51 PM EDT for 4 counties in South Carolina. It was in force for 54 min. 2 reports 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, 2012, 6:51 PM EDT (22:51 UTC)
- Expired
- Apr 5, 2012, 7:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Beaufort County, SC, Charleston County, SC, Colleton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 59 km from the middle of the area, began a volume at 22:53 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, 6:51 PM EDT | TSTM WND DMG | Sheldon, SC | 3 TO 4 TRESS DOWN IN THE SHELDON AREA. TIME BASED ON RADAR. |
| Apr 5, 7:19 PM EDT | TSTM WND DMG | Green Pond, SC | MULTIPLE TREES DOWN IN THE GREEN POND AREA. TIME ESTIMATED FROM RADAR. |
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, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.9 hours before the alert went out and 59 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
- 490 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
239
WUUS52 KCHS 052251
SVRCHS
SCC013-019-029-053-052345-
/O.NEW.KCHS.SV.W.0047.120405T2251Z-120405T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
651 PM EDT THU APR 5 2012
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BEAUFORT COUNTY IN SOUTHEAST SOUTH CAROLINA...
SOUTHWESTERN CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
SOUTHEASTERN COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA...
EAST CENTRAL JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 745 PM EDT
* AT 652 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM...NEAR CLARENDON...MOVING NORTHEAST AT 30 MPH.
PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...
* SOME LOCATIONS IN THE WARNING INCLUDE...
CLARENDON...LAUREL BAY...BEAUFORT MARINE CORPS AIR STATION...
GARDENS CORNER...DALE...LADYS ISLAND...WHITE HALL...GREEN POND...
RITTER...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024.
&&
LAT...LON 3260 7999 3259 8011 3254 8017 3255 8020
3247 8035 3243 8035 3245 8037 3247 8035
3249 8036 3246 8040 3249 8043 3248 8047
3245 8047 3239 8042 3228 8068 3233 8099
3250 8098 3263 8090 3292 8052 3263 7997
TIME...MOT...LOC 2252Z 244DEG 28KT 3253 8076
$$1 follow-up statement
640
WWUS52 KCHS 052318
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
718 PM EDT THU APR 5 2012
SCC053-052328-
/O.CAN.KCHS.SV.W.0047.000000T0000Z-120405T2345Z/
JASPER SC-
718 PM EDT THU APR 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL JASPER COUNTY HAS
BEEN CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
THURSDAY EVENING FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
LAT...LON 3260 8001 3259 8011 3254 8017 3253 8023
3247 8035 3243 8035 3249 8036 3246 8040
3249 8043 3248 8047 3245 8047 3239 8042
3228 8068 3249 8081 3267 8085 3292 8052
3263 7997
TIME...MOT...LOC 2318Z 244DEG 28KT 3279 8065 3266 8049
3249 8052 3240 8065
$$
SCC013-019-029-052345-
/O.CON.KCHS.SV.W.0047.000000T0000Z-120405T2345Z/
CHARLESTON SC-COLLETON SC-BEAUFORT SC-
718 PM EDT THU APR 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN BEAUFORT...SOUTHEASTERN COLLETON AND SOUTHWESTERN
CHARLESTON COUNTIES...
AT 718 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
RITTER TO WIGGINS TO COOSAW ISLAND TO UNITED STATES NAVAL HOSPITAL...
MOVING NORTHEAST AT 30 MPH.
PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ADAMS
RUN...ASHEPOO...BEARS BLUFF...BEAUFORT...BEAUFORT MARINE CORPS AIR
STATION...BENNETTS POINT...BURTON...CLARENDON...DALE...EDISTO
BEACH...EDISTO ISLAND...GARDENS CORNER...GREEN POND...HOLLYWOOD...
JACKSONBORO...KIAWAH ISLAND...LADYS ISLAND...LAUREL BAY...MEGGETT...
PARRIS ISLAND...PORT ROYAL...RAVENEL...RITTER...ROCKVILLE...SEABROOK
ISLAND...SHELDON...WADMALAW ISLAND...WHITE HALL AND YONGES ISLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.
&&
LAT...LON 3260 8001 3259 8011 3254 8017 3253 8023
3247 8035 3243 8035 3249 8036 3246 8040
3249 8043 3248 8047 3245 8047 3239 8042
3228 8068 3249 8081 3267 8085 3292 8052
3263 7997
TIME...MOT...LOC 2318Z 244DEG 28KT 3279 8065 3266 8049
3249 8052 3240 8065
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 6:10 PM EDT | Special Weather Statement | CHS | Jasper | 35 min |
| Apr 5, 6:40 PM EDT | Special Weather Statement | CHS | Beaufort | 35 min |
| Apr 5, 7:14 PM EDT | Special Weather Statement | CHS | Colleton, Dorchester | 46 min |
| Apr 5, 7:35 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Berkeley, Charleston, Colleton, Dorchester | 55 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2012Every severe thunderstorm warning in 2012
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.