Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 151, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 17, 2012, 1:10 PM EDT for Screven County, Georgia; Allendale County, South Carolina. It was in force for 50 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
- Jul 17, 2012, 1:10 PM EDT (17:10 UTC)
- Expired
- Jul 17, 2012, 2:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Screven County, GA, Allendale County, SC
The radar
The Charleston,SC radar (KCLX), 40 km from the middle of the area, began a volume at 17:12 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 |
|---|---|---|---|
| Jul 17, 1:22 PM EDT | TSTM WND DMG | 8 Se Burtons Ferry Land, SC | DISPATCH CENTER REPORTED A TREE DOWN AT SC HWY 3 AND COHENS BLUFF RD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 5.2 hours before the alert went out and 134 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.
044 WUUS52 KCHS 171710 SVRCHS GAC251-SCC005-171815- /O.NEW.KCHS.SV.W.0151.120717T1710Z-120717T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 110 PM EDT TUE JUL 17 2012 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL SCREVEN COUNTY IN SOUTHEAST GEORGIA... SOUTH CENTRAL ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA... * UNTIL 215 PM EDT * AT 109 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM OVER SOUTH CENTRAL ALLENDALE COUNTY... NEARLY STATIONARY. PREPARE NOW FOR THE FOLLOWING HAZARDS... DAMAGING WINDS IN EXCESS OF 60 MPH... HAIL UP TO QUARTER SIZE... 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 3269 8148 3289 8158 3296 8131 3283 8129 TIME...MOT...LOC 1709Z 239DEG 2KT 3283 8140 $$
2 follow-up statements
123 WWUS52 KCHS 171729 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 129 PM EDT TUE JUL 17 2012 GAC251-SCC005-171815- /O.CON.KCHS.SV.W.0151.000000T0000Z-120717T1815Z/ SCREVEN GA-ALLENDALE SC- 129 PM EDT TUE JUL 17 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR SOUTH CENTRAL ALLENDALE AND EAST CENTRAL SCREVEN COUNTIES... AT 129 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM OVER SOUTH CENTRAL ALLENDALE COUNTY... MOVING EAST AT 5 MPH. PREPARE NOW FOR THE FOLLOWING HAZARDS... DAMAGING WINDS IN EXCESS OF 60 MPH... HAIL UP TO QUARTER SIZE... PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL SEVERE THUNDERSTORMS MAY DEVELOP AND AFFECT OTHER COMMUNITIES IN THE WARNED AREA. FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER... YOU ARE WITHIN STRIKING DISTANCE. && LAT...LON 3269 8148 3289 8158 3296 8131 3283 8129 TIME...MOT...LOC 1729Z 275DEG 3KT 3284 8137 $$
121 WWUS52 KCHS 171800 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 200 PM EDT TUE JUL 17 2012 GAC251-SCC005-171809- /O.CAN.KCHS.SV.W.0151.000000T0000Z-120717T1815Z/ SCREVEN GA-ALLENDALE SC- 200 PM EDT TUE JUL 17 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ALLENDALE AND EAST CENTRAL SCREVEN COUNTIES HAS BEEN CANCELLED... AT 159 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED. ALTHOUGH THE SEVERE THUNDERSTORM WARNING IS NO LONGER IN EFFECT... ADDITIONAL SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS AND LARGE HAIL MAY AFFECT THE AREA LATER THIS AFTERNOON. CONTINUE TO MONITOR NOAA WEATHER RADIO ALL HAZARDS FOR THE LATEST FORECASTS... WARNINGS AND STATEMENTS FROM THE NATIONAL WEATHER SERVICE OFFICE IN CHARLESTON. LAT...LON 3269 8148 3289 8158 3296 8131 3283 8129 TIME...MOT...LOC 1759Z 275DEG 3KT 3284 8134 $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 1:26 PM EDT | Special Weather Statement | CHS | Effingham | 34 min |
| Jul 17, 2:19 PM EDT | Special Weather Statement | CHS | Candler | 41 min |
| Jul 17, 4:57 PM EDT | Severe Thunderstorm Warning | CHS | Effingham | 63 min |
| Jul 17, 5:00 PM EDT | Special Weather Statement | CHS | Long | 30 min |
| Jul 17, 5:21 PM EDT | Severe Thunderstorm Warning | CHS | Long, Tattnall | 28 min |
| Jul 16, 9:03 PM EDT | Special Weather Statement | CHS | Hampton | 42 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, 5:09 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston, Dorchester | 44 min |
| Jul 17, 5:38 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston, Dorchester | 82 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2012Severe 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.