Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 67, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at May 15, 2012, 5:25 PM EDT for 4 counties in South Carolina. It was in force for 65 min. 3 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
- May 15, 2012, 5:25 PM EDT (21:25 UTC)
- Expired
- May 15, 2012, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Beaufort County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 11 km from the middle of the area, began a volume at 21:26 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 |
|---|---|---|---|
| May 15, 5:31 PM EDT | HAIL 0.75 | 2 Wnw Ridgeland, SC | TRAINED SPOTTER REPORTED PENNY SIZE HAIL ON BLUE GILL LANE. |
| May 15, 5:35 PM EDT | HAIL 0.75 | 2 Wsw Ridgeland, SC | CO OP OBSERVER REPORTED PENNY SIZE HAIL NEAR RIDGLAND. TIME ESTIMATED BY RADAR. |
| May 15, 5:47 PM EDT | HAIL 0.7 | Ridgeland, SC | JASPER COUNTY 911 CENTER IS RECEIVING DIME SIZE HAIL. |
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 |
|---|---|---|---|
| May 15, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 9.4 hours before the alert went out and 90 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
- 1682 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
133 WUUS52 KCHS 152125 SVRCHS SCC013-029-049-053-152230- /O.NEW.KCHS.SV.W.0067.120515T2125Z-120515T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 525 PM EDT TUE MAY 15 2012 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL BEAUFORT COUNTY IN SOUTHEAST SOUTH CAROLINA... CENTRAL COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA... EAST CENTRAL HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA... NORTHERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA... * UNTIL 630 PM EDT * AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...NEAR SWITZERLAND...MOVING NORTHEAST AT 20 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... SWITZERLAND...RIDGELAND...GRAHAMVILLE...GILLISONVILLE... COOSAWHATCHIE...GRAYS... 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 3291 8096 3269 8056 3242 8101 3248 8114 TIME...MOT...LOC 2125Z 215DEG 17KT 3245 8107 $$ JAQ
3 follow-up statements
290 WWUS52 KCHS 152154 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 554 PM EDT TUE MAY 15 2012 SCC013-029-049-053-152230- /O.CON.KCHS.SV.W.0067.000000T0000Z-120515T2230Z/ HAMPTON SC-JASPER SC-COLLETON SC-BEAUFORT SC- 554 PM EDT TUE MAY 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR NORTH CENTRAL BEAUFORT...CENTRAL COLLETON...NORTHEASTERN JASPER AND EAST CENTRAL HAMPTON COUNTIES... AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM NEAR COOSAWHATCHIE...MOVING NORTHEAST AT 20 MPH. ANOTHER SEVERE THUNDERSTORM WAS LOCATED ABOUT 4 MILES SOUTHEAST OF ISLANDTON...ALSO MOVING NORTHEAST AT 20 MPH. PREPARE NOW FOR THE FOLLOWING HAZARDS... HAIL UP TO QUARTER SIZE... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... COOSAWHATCHIE...EARLY BRANCH...GARDENS CORNER...MCPHERSONVILLE... POCOTALIGO...SHELDON...WHITE HALL AND YEMASSEE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. && LAT...LON 3248 8092 3254 8100 3291 8096 3269 8056 TIME...MOT...LOC 2153Z 219DEG 18KT 3256 8091 $$ JAQ
604 WWUS52 KCHS 152211 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 611 PM EDT TUE MAY 15 2012 SCC013-049-053-152221- /O.CAN.KCHS.SV.W.0067.000000T0000Z-120515T2230Z/ HAMPTON SC-JASPER SC-BEAUFORT SC- 611 PM EDT TUE MAY 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BEAUFORT... NORTHEASTERN JASPER AND EAST CENTRAL HAMPTON COUNTIES HAS BEEN CANCELLED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. LAT...LON 3275 8084 3281 8089 3287 8088 3275 8067 TIME...MOT...LOC 2211Z 267DEG 7KT 3281 8082 $$ SCC029-152230- /O.CON.KCHS.SV.W.0067.000000T0000Z-120515T2230Z/ COLLETON SC- 611 PM EDT TUE MAY 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR CENTRAL COLLETON COUNTY... AT 611 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM OVER CENTRAL COLLETON COUNTY...MOVING EAST AT 10 MPH. PREPARE NOW FOR THE FOLLOWING HAZARDS... HAIL UP TO QUARTER SIZE... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE.... PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. && LAT...LON 3275 8084 3281 8089 3287 8088 3275 8067 TIME...MOT...LOC 2211Z 267DEG 7KT 3281 8082 $$ JAQ
198 WWUS52 KCHS 152221 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 621 PM EDT TUE MAY 15 2012 SCC029-152231- /O.EXP.KCHS.SV.W.0067.000000T0000Z-120515T2230Z/ COLLETON SC- 621 PM EDT TUE MAY 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLLETON COUNTY WILL EXPIRE AT 630 PM EDT... AT 621 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. 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 3275 8084 3281 8089 3287 8088 3275 8067 TIME...MOT...LOC 2221Z 267DEG 7KT 3281 8080 $$ JAQ
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 3:54 PM EDT | Severe Thunderstorm Warning | CHS | Allendale, Hampton | 20 min |
| May 15, 4:42 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 63 min |
| May 15, 5:01 PM EDT | Special Weather Statement | CHS | Dorchester | 29 min |
| May 15, 5:48 PM EDT | Special Weather Statement | CHS | Allendale | 27 min |
| May 15, 6:01 PM EDT | Special Weather Statement | CHS | Dorchester | 29 min |
| May 15, 6:34 PM EDT | Special Weather Statement | CHS | Dorchester | 26 min |
| May 15, 6:36 PM EDT | Special Weather Statement | CHS | Colleton | 24 min |
| May 15, 6:57 PM EDT | Special Weather Statement | CHS | Dorchester | 33 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.