Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 47, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Apr 21, 2011, 7:19 PM EDT for Bryan County, Chatham County, Georgia. It was in force for 27 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 21, 2011, 7:19 PM EDT (23:19 UTC)
- Expired
- Apr 21, 2011, 7:46 PM EDT
- In force
- 27 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Bryan County, GA, Chatham County, GA
The radar
The Charleston,SC radar (KCLX), 81 km from the middle of the area, began a volume at 23:20 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 21, 7:28 PM EDT | HAIL 0.88 | 4 Se Richmond Hill, GA | DIME TO NICKEL SIZED HAIL REPORTED ALONG CRICKET COURT IN RICHMOND HILL. |
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, 11.3 hours before the alert went out and 152 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
- 1320 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1241 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
332 WUUS52 KCHS 212319 SVRCHS GAC029-051-220000- /O.NEW.KCHS.SV.W.0047.110421T2319Z-110422T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 719 PM EDT THU APR 21 2011 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL BRYAN COUNTY IN SOUTHEAST GEORGIA... CENTRAL CHATHAM COUNTY IN SOUTHEAST GEORGIA... * UNTIL 800 PM EDT * AT 715 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...NEAR FORT MCALLISTER...MOVING EAST AT 15 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... RICHMOND HILL...FORT MCALLISTER...WINDSOR FOREST...VERNONBURG... ISLE OF HOPE...SANDFLY... 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 3200 8102 3181 8104 3189 8133 3196 8131 TIME...MOT...LOC 2319Z 269DEG 13KT 3189 8123 $$
1 follow-up statement
932 WWUS52 KCHS 212346 SVSCHS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 746 PM EDT THU APR 21 2011 GAC029-051-212357- /O.CAN.KCHS.SV.W.0047.000000T0000Z-110422T0000Z/ CHATHAM GA-BRYAN GA- 746 PM EDT THU APR 21 2011 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BRYAN AND CENTRAL CHATHAM COUNTIES HAS BEEN CANCELLED... AT 744 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED. TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH TWITTER USING #WXREPORT. LAT...LON 3200 8102 3181 8104 3189 8133 3196 8131 TIME...MOT...LOC 2347Z 269DEG 13KT 3189 8111 $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 3:02 PM EDT | Special Weather Statement | CHS | McIntosh | 28 min |
| Apr 21, 4:58 PM EDT | Special Weather Statement | CHS | Chatham | 32 min |
| Apr 21, 5:01 PM EDT | Special Weather Statement | CHS | McIntosh | 29 min |
| Apr 21, 5:11 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Chatham, Liberty, Long, McIntosh | 64 min |
| Apr 21, 5:34 PM EDT | Special Weather Statement | CHS | McIntosh | 41 min |
| Apr 21, 5:40 PM EDT | Special Marine Warning | CHS | 35 min | |
| Apr 21, 6:37 PM EDT | Special Weather Statement | CHS | Liberty | 23 min |
| Apr 21, 6:46 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Chatham, Liberty | 46 min |
| Apr 21, 6:59 PM EDT | Special Marine Warning | CHS | 91 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning 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.