Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 155, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 17, 2012, 5:09 PM EDT for Berkeley County, Charleston County, Dorchester County, South Carolina. It was in force for 44 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 17, 2012, 5:09 PM EDT (21:09 UTC)
- Expired
- Jul 17, 2012, 5:53 PM EDT
- In force
- 44 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Berkeley County, SC, Charleston County, SC, Dorchester County, SC
The radar
The Charleston,SC radar (KCLX), 98 km from the middle of the area, began a volume at 21:13 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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 9.2 hours before the alert went out and 34 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
- 2497 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 586 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
069
WUUS52 KCHS 172109
SVRCHS
SCC015-019-035-172215-
/O.NEW.KCHS.SV.W.0155.120717T2109Z-120717T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
509 PM EDT TUE JUL 17 2012
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...
CENTRAL CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
EASTERN DORCHESTER COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 615 PM EDT
* AT 509 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM...NEAR LADSON...MOVING WEST AT 10 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...
LADSON...COLLEGE PARK...SANGAREE...SUMMERVILLE...SUMMERVILLE...
KNIGHTSVILLE...SLANDS BRIDGE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE SHELTER AS THUNDERSTORMS APPROACH.
REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024...WHEN IT IS
SAFE TO DO SO.
&&
LAT...LON 3308 8001 3297 7999 3291 8001 3290 8008
3298 8034 3327 8036 3328 8034 3327 8030
3330 8026 3336 8024 3338 8025 3339 8023
TIME...MOT...LOC 2109Z 101DEG 8KT 3297 8013
$$2 follow-up statements
264
WWUS52 KCHS 172131
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
531 PM EDT TUE JUL 17 2012
SCC015-019-035-172215-
/O.CON.KCHS.SV.W.0155.000000T0000Z-120717T2215Z/
DORCHESTER SC-CHARLESTON SC-BERKELEY SC-
531 PM EDT TUE JUL 17 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHWESTERN BERKELEY...CENTRAL CHARLESTON AND EASTERN DORCHESTER
COUNTIES...
AT 529 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT SEVERE THUNDERSTORMS NEAR STALLSVILLE AND 7 MILES NORTHEAST
OF PRINGLETOWN...MOVING WEST AT 10 MPH.
PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FREQUENT LIGHTNING IS OCCURRING WITH THESE THUNDERSTORMS. MOVE
INDOORS IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY
AWAY FROM ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR
THUNDER...YOU ARE WITHIN STRIKING DISTANCE.
&&
LAT...LON 3329 8016 3319 8016 3305 8011 3304 8000
3297 7999 3291 8001 3290 8008 3298 8034
3327 8036 3328 8034 3327 8030 3330 8026
3336 8024 3338 8025 3339 8023
TIME...MOT...LOC 2128Z 101DEG 8KT 3298 8018
$$880
WWUS52 KCHS 172153
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
553 PM EDT TUE JUL 17 2012
SCC015-019-035-172202-
/O.CAN.KCHS.SV.W.0155.000000T0000Z-120717T2215Z/
DORCHESTER SC-CHARLESTON SC-BERKELEY SC-
553 PM EDT TUE JUL 17 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BERKELEY...
CENTRAL CHARLESTON AND EASTERN DORCHESTER COUNTIES HAS BEEN
CANCELLED...
AT 552 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED
THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED.
ALTHOUGH THE IMMEDIATE THREAT FOR DAMAGING WINDS AND LARGE HAIL HAS
ENDED...THUNDERSTORMS ARE STILL PRODUCING CLOUD TO GROUND LIGHTNING
STRIKES AND TORRENTIAL RAINFALL. THE SAFEST COURSE OF ACTION
IS TO REMAIN INDOORS UNTIL THE STORMS HAVE PASSED.
LAT...LON 3329 8016 3319 8016 3305 8011 3304 8000
3297 7999 3291 8001 3290 8008 3298 8034
3327 8036 3328 8034 3327 8030 3330 8026
3336 8024 3338 8025 3339 8023
TIME...MOT...LOC 2152Z 150DEG 8KT 3303 8012
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 9:03 PM EDT | Special Weather Statement | CHS | Hampton | 42 min |
| Jul 17, 1:10 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 50 min |
| Jul 17, 2:44 PM EDT | Special Weather Statement | CHS | Colleton | 31 min |
| Jul 17, 2:52 PM EDT | Severe Thunderstorm Warning | CHS | Colleton | 68 min |
| Jul 17, 3:22 PM EDT | Special Weather Statement | CHS | Hampton | 38 min |
| Jul 17, 4:14 PM EDT | Special Weather Statement | CHS | Beaufort | 31 min |
| Jul 17, 4:39 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 66 min |
| Jul 17, 4:47 PM EDT | Special Weather Statement | CHS | Dorchester | 28 min |
| Jul 17, 4:57 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 63 min |
| Jul 17, 5:38 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston, Dorchester | 82 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.