Alert archive / Georgia / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 252, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 31, 2009, 5:30 PM EDT for Beaufort County, Jasper County, South Carolina; Bryan County, Chatham County, Effingham County, Georgia. It was in force for 60 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 31, 2009, 5:30 PM EDT (21:30 UTC)
- Expired
- Jul 31, 2009, 6:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Bryan County, GA, Chatham County, GA, Effingham County, GA, Beaufort County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 59 km from the middle of the area, began a volume at 21:33 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 31, 5:40 PM EDT | TSTM WND DMG | Savannah, GA | LARGE OAK TREE LIMB DOWN BLOCKING ROADWAY. TIME ESTIMATED BASED ON RADAR. |
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, 9.5 hours before the alert went out and 126 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
- 1618 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 805 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS52 KCHS 312130
SVRCHS
GAC029-051-103-SCC013-053-312230-
/O.NEW.KCHS.SV.W.0252.090731T2130Z-090731T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
530 PM EDT FRI JUL 31 2009
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN BRYAN COUNTY IN SOUTHEAST GEORGIA...
CHATHAM COUNTY IN SOUTHEAST GEORGIA...
EXTREME SOUTHEASTERN EFFINGHAM COUNTY IN SOUTHEAST GEORGIA...
SOUTHWESTERN BEAUFORT COUNTY IN SOUTHEAST SOUTH CAROLINA...
SOUTHERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 630 PM EDT
* AT 529 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS...ALONG A LINE EXTENDING FROM MONTEITH
TO KELLER...MOVING NORTHEAST AT 35 MPH.
PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
PENNY SIZE HAIL...
* SOME LOCATIONS IN THE WARNING INCLUDE...
GARDEN CITY...BURROUGHS...FORT MCALLISTER...WHITE BLUFF...JASPER...
SUN CITY...PRITCHARDVILLE...BELLINGER HILL AREA...
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 3177 8120 3196 8139 3222 8117 3236 8093
3242 8081 3244 8077 3240 8078 3239 8080
3238 8078 3216 8081 3212 8083 3186 8111
3186 8112 3185 8112
TIME...MOT...LOC 2130Z 234DEG 29KT 3221 8109 3189 8127
$$3 follow-up statements
000
WWUS52 KCHS 312159
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
559 PM EDT FRI JUL 31 2009
GAC029-051-312208-
/O.CAN.KCHS.SV.W.0252.000000T0000Z-090731T2230Z/
BRYAN GA-CHATHAM GA-
559 PM EDT FRI JUL 31 2009
...THE SEVERE THUNDERSTORM WARNING FOR CHATHAM AND SOUTHEASTERN BRYAN
COUNTIES HAS BEEN CANCELLED...
LAT...LON 3204 8094 3209 8100 3208 8105 3211 8111
3219 8111 3223 8116 3237 8092 3244 8077
3240 8078 3239 8080 3238 8078 3217 8081
3212 8083 3206 8089
TIME...MOT...LOC 2158Z 234DEG 29KT 3214 8107
$$
GAC103-SCC013-053-312230-
/O.CON.KCHS.SV.W.0252.000000T0000Z-090731T2230Z/
EFFINGHAM GA-BEAUFORT SC-JASPER SC-
559 PM EDT FRI JUL 31 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHERN JASPER...SOUTHWESTERN BEAUFORT AND EXTREME SOUTHEASTERN
EFFINGHAM COUNTIES...
AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR THE BELLINGER HILL
AREA...MOVING NORTHEAST AT 35 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUFFTON...PRITCHARDVILLE...ROSE HILL AND SUN CITY.
LAT...LON 3204 8094 3209 8100 3208 8105 3211 8111
3219 8111 3223 8116 3237 8092 3244 8077
3240 8078 3239 8080 3238 8078 3217 8081
3212 8083 3206 8089
TIME...MOT...LOC 2158Z 234DEG 29KT 3214 8107
$$000
WWUS52 KCHS 312203
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
603 PM EDT FRI JUL 31 2009
GAC103-312213-
/O.CAN.KCHS.SV.W.0252.000000T0000Z-090731T2230Z/
EFFINGHAM GA-
603 PM EDT FRI JUL 31 2009
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHEASTERN EFFINGHAM
COUNTY HAS BEEN CANCELLED...
LAT...LON 3209 8100 3208 8105 3209 8106 3213 8110
3233 8099 3244 8077 3240 8078 3239 8080
3238 8078 3217 8081 3212 8083 3206 8089
3204 8094
TIME...MOT...LOC 2203Z 236DEG 41KT 3223 8087
$$
SCC013-053-312230-
/O.CON.KCHS.SV.W.0252.000000T0000Z-090731T2230Z/
BEAUFORT SC-JASPER SC-
603 PM EDT FRI JUL 31 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHEASTERN JASPER AND SOUTHWESTERN BEAUFORT COUNTIES...
AT 601 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MYRTLE
ISLAND...MOVING NORTHEAST AT 45 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUFFTON...CALAWASSIE ISLAND...JASPER...LEMON ISLAND...
PRITCHARDVILLE...ROSE HILL AND SUN CITY.
LAT...LON 3209 8100 3208 8105 3209 8106 3213 8110
3233 8099 3244 8077 3240 8078 3239 8080
3238 8078 3217 8081 3212 8083 3206 8089
3204 8094
TIME...MOT...LOC 2203Z 236DEG 41KT 3223 8087
$$000
WWUS52 KCHS 312220
SVSCHS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
620 PM EDT FRI JUL 31 2009
SCC013-053-312230-
/O.EXP.KCHS.SV.W.0252.000000T0000Z-090731T2230Z/
BEAUFORT SC-JASPER SC-
620 PM EDT FRI JUL 31 2009
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JASPER AND
SOUTHWESTERN BEAUFORT COUNTIES WILL EXPIRE AT 630 PM EDT...
AT 620 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED
THE WARNING HAD WEAKENED...THUS THE SEVERE THUNDERSTORM WARNING HAS
BEEN ALLOWED TO EXPIRE.
LAT...LON 3209 8100 3208 8105 3209 8106 3213 8110
3233 8099 3244 8077 3240 8078 3239 8080
3238 8078 3217 8081 3212 8083 3206 8089
3204 8094
TIME...MOT...LOC 2220Z 236DEG 41KT 3234 8068
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:13 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 62 min |
| Jul 31, 3:46 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 30 min |
| Jul 31, 4:49 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 56 min |
| Jul 31, 4:58 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Hampton, Jasper | 62 min |
| Jul 31, 5:46 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 59 min |
| Jul 30, 8:27 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Chatham, Effingham | 47 min |
| Jul 30, 8:44 PM EDT | Areal Flood Advisory | CHS | Effingham | 91 min |
| Jul 30, 10:12 PM EDT | Areal Flood Advisory | CHS | Bulloch, Effingham | 81 min |
| Jul 31, 3:14 PM EDT | Severe Thunderstorm Warning | CHS | Jenkins, Screven | 35 min |
| Jul 31, 3:43 PM EDT | Severe Thunderstorm Warning | CHS | Bulloch, Candler, Evans, Tattnall | 62 min |
| Jul 31, 4:10 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Evans, Liberty, Long, Tattnall | 65 min |
| Jul 31, 4:23 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Effingham, Screven | 67 min |
| Jul 31, 4:46 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Liberty, Long, McIntosh | 59 min |
| Jul 31, 5:07 PM EDT | Special Marine Warning | CHS | 38 min | |
| Jul 31, 5:44 PM EDT | Areal Flood Advisory | CHS | Chatham | 34 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2009Severe Thunderstorm Warnings in South Carolina, 2009Every severe thunderstorm warning in 2009
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.