Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 28, NWS Charleston, SC

April 5, 20114 counties in Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Apr 5, 2011, 4:42 AM EDT for 4 counties in Georgia. It was in force for 63 min. 5 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: Apr 5, 2011, 4:42 AM EDT (08:42 UTC)
Expired: Apr 5, 2011, 5:45 AM EDT
In force: 63 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

Counties Bryan County, GA, Liberty County, GA, Long County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 125 km from the middle of the area, began a volume at 08:45 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 5, 4:45 AM EDT	TSTM WND DMG	Glennville, GA	TREES DOWN REPORTED VIA WARNING POINT.
Apr 5, 5:05 AM EDT	TSTM WND DMG	4 E Donald, GA	POWERLINES DOWN ALONG RYE PATCH RD.
Apr 5, 5:10 AM EDT	TSTM WND DMG	2 W Gum Branch, GA	TREE DOWN ALONG HWY 196.
Apr 5, 5:15 AM EDT	TSTM WND DMG	1 Nnw Flemington, GA	THUNDERSTORM WINDS BLEW DOWN APPROXIMATELY 20 TREES NEAR THE INTERSECTION OF OLD SAVANNAH ROAD AND OLD SUNBURY ROAD. 8 TREES WERE BLOCKING OLD SUNBURY ROAD. A TREE ALSO FELL ONTO A HOUSE.
Apr 5, 5:27 AM EDT	TSTM WND DMG	3 Se Gum Branch, GA	POWERLINES DOWN NEAR INTERSECTION OF HWY 196 AND WELLS RD.

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
Apr 5, 2:41 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 8.7 hours before the alert went out and 140 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 64 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 2067 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

794 
WUUS52 KCHS 050842
SVRCHS
GAC029-179-183-267-050945-
/O.NEW.KCHS.SV.W.0028.110405T0842Z-110405T0945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
442 AM EDT TUE APR 5 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BRYAN COUNTY IN SOUTHEAST GEORGIA...
  WEST CENTRAL LIBERTY COUNTY IN SOUTHEAST GEORGIA...
  LONG COUNTY IN SOUTHEAST GEORGIA...
  SOUTHEASTERN TATTNALL COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 545 AM EDT

* AT 440 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS...ALONG A LINE EXTENDING FROM GLENNVILLE TO 22
  MILES SOUTHWEST OF DONALD...MOVING EAST AT 55 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...
  QUARTER SIZE HAIL...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  GLENNVILLE...DONALD...GUM BRANCH...WALTHOURVILLE...LUDOWICI...
  MCINTOSH...FORT STEWART...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE 
TORNADOES SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. IF YOU SEE 
OR HEAR A TORNADO...MOVE QUICKLY TO AN INTERIOR ROOM IN A STURDY 
STRUCTURE.

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024.

&&

LAT...LON 3203 8192 3199 8143 3154 8167 3156 8170
      3159 8171 3161 8177 3165 8180 3164 8182
      3165 8184 3178 8196 3178 8200 3181 8202
      3185 8209
TIME...MOT...LOC 0842Z 269DEG 47KT 3202 8188 3169 8217

$$

2 follow-up statements

018 
WWUS52 KCHS 050859
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
459 AM EDT TUE APR 5 2011

GAC029-179-183-267-050945-
/O.CON.KCHS.SV.W.0028.000000T0000Z-110405T0945Z/
LONG GA-TATTNALL GA-BRYAN GA-LIBERTY GA-
459 AM EDT TUE APR 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM EDT
FOR WEST CENTRAL LIBERTY...CENTRAL BRYAN...SOUTHEASTERN TATTNALL AND
LONG COUNTIES...

AT 458 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 12 MILES NORTH OF GUM BRANCH TO 9 MILES
SOUTHWEST OF NOBLE...OR ALONG A LINE EXTENDING FROM 10 MILES
SOUTHWEST OF PEMBROKE TO 10 MILES NORTHWEST OF JESUP...MOVING EAST AT
55 MPH.

AT 445 AM EDT...LAW ENFORCEMENT REPORTED TREES BLOWN DOWN IN THE 
GLENNVILLE AREA.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
ALLENHURST...DONALD...FLEMINGTON...FORT STEWART...GLENNVILLE...GUM
BRANCH...HINESVILLE...LUDOWICI...MCINTOSH AND WALTHOURVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. IF YOU SEE
OR HEAR A TORNADO...MOVE QUICKLY TO AN INTERIOR ROOM IN A STURDY
STRUCTURE.

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 3203 8192 3199 8143 3154 8167 3156 8170
      3159 8171 3161 8177 3165 8180 3164 8182
      3165 8184 3178 8196 3178 8200 3181 8202
      3185 8209
TIME...MOT...LOC 0859Z 269DEG 47KT 3203 8172 3172 8197

$$

720 
WWUS52 KCHS 050918
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
518 AM EDT TUE APR 5 2011

GAC267-050928-
/O.CAN.KCHS.SV.W.0028.000000T0000Z-110405T0945Z/
TATTNALL GA-
518 AM EDT TUE APR 5 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TATTNALL COUNTY
HAS BEEN CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM EDT TUESDAY MORNING
FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

LAT...LON 3165 8184 3175 8193 3182 8191 3202 8176
      3199 8143 3154 8167 3156 8170 3159 8171
      3161 8177 3165 8180 3164 8182
TIME...MOT...LOC 0918Z 269DEG 47KT 3201 8156 3164 8179

$$

GAC029-179-183-050945-
/O.CON.KCHS.SV.W.0028.000000T0000Z-110405T0945Z/
LONG GA-BRYAN GA-LIBERTY GA-
518 AM EDT TUE APR 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM EDT
FOR CENTRAL LIBERTY...CENTRAL BRYAN AND LONG COUNTIES...

AT 516 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTH OF TRINITY TO
6 MILES SOUTHWEST OF LUDOWICI...OR ALONG A LINE EXTENDING FROM 9
MILES SOUTH OF PEMBROKE TO JESUP...MOVING EAST AT 55 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
ALLENHURST...DONALD...FLEMINGTON...FORT STEWART...GUM BRANCH...
HINESVILLE...LUDOWICI...MCINTOSH AND WALTHOURVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. IF YOU SEE
OR HEAR A TORNADO...MOVE QUICKLY TO AN INTERIOR ROOM IN A STURDY
STRUCTURE.

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 3165 8184 3175 8193 3182 8191 3202 8176
      3199 8143 3154 8167 3156 8170 3159 8171
      3161 8177 3165 8180 3164 8182
TIME...MOT...LOC 0918Z 269DEG 47KT 3201 8156 3164 8179

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 5, 3:31 AM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Evans, Jenkins, Screven, Tattnall	59 min
Apr 5, 3:58 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Effingham, Evans, Liberty, Screven and 1 more	62 min
Apr 5, 4:33 AM EDT	Special Weather Statement	CHS	Long	27 min
Apr 5, 4:34 AM EDT	Severe Thunderstorm Warning	CHS	Effingham	56 min
Apr 5, 4:46 AM EDT	Special Weather Statement	CHS	Chatham	29 min
Apr 5, 4:49 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Chatham, Effingham, Liberty	56 min
Apr 5, 5:25 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, Long, McIntosh	65 min
Apr 5, 5:33 AM EDT	Special Marine Warning	CHS		117 min
Apr 5, 5:44 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty	61 min
Apr 5, 7:14 AM EDT	Special Marine Warning	CHS		61 min
Apr 5, 10:40 AM EDT	River Flood Warning	CHS	Bryan, Chatham, Effingham	5 days

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every 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.