A short wave trough moved across southeast Georgia in the afternoon which ignited scattered severe storms. The sea breezes and outflows provided enough low level convergence and surface instability was high.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAX wrote it up.
A short wave trough moved across southeast Georgia in the afternoon which ignited scattered severe storms. The sea breezes and outflows provided enough low level convergence and surface instability was high. Widespread wind damage was reported.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before the first event at Aug 11, 1:00 PM EST, 3 hours 55 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 200 PM EDT THU AUG 11 2011 .SHORT TERM...TNGT THRU SAT NGT...UPPER PATTERN EVOLVES FROM E-W ORIENTED RIDGE OVER FL/NRN GOM WITH WRLYS N OF AREA...TO A BUILDING ERN STATES TROUGH/ROCKIES RIDGE PATTERN BY SAT NGT. SLIGHT DECREASE IN MODEL LLVL TEMPS/THICKNESSES THRU WEEKEND SUGGEST SLIGHTLY LOWER MAX TEMPS THAN YDAY/TDAY...BUT STILL MID 90S (PSBLY UPR 90S SUWANNEE VALLEY REGION) FRI AND LOW/MID 90S OVER WEEKEND. SOMEWHAT HIGHER DWPTS WILL KEEP AFTN HEAT INDEX VALUES IN 100-109 RANGE. SHOULD SEE RAIN CHANCES INCREASE WITH INCRSG LLVL MOISTURE AHEAD OF UPR TROF. GOING WITH 30-40 POPS WELL INLAND...20 POP COAST...NEXT FEW DAYS FOR SCTD AFTN SHRA/TSRA. .LONG TERM...SUN THRU THURS...MODEL GUID SHOWS UPR TROF INTENSIFY OVER ERN STATES SUN/MON. WHILE MODELS STALL COLD FRONT OVER NRN FL MON/TUE...EXPECT DRIER AIR ALOFT AND SUBSIDENCE TO MOVE OVER CWA... PUSHING PCPN CHANCES TO OUR SRN COUNTIES BY TUE. MOISTURE MAY RETURN WED/THU TO LEAD TO SCT'D AFTN TSRA WITH SEA BREEZES AND WEAKENING UPR TROF OVER AREA. HAVE MAX TEMPS IN MID 90S SUN/MON AND LWR 90S TUE-THU...REMAINING A LITTLE ABOVE NORMAL. && .AVIATION...PREVAILING VFR EXPECTED THROUGH FRIDAY MORNING. MVFR VSBY IS PSBL AT GNV AND VQQ MAINLY AFTER 08Z. HOWEVER CONFIDENCE IS NOT ENOUGH TO INCLUDE ATTM. && .MARINE...NO HEADINES. QUIESCENT CONDS ARE EXPECTED THROUGH THE WEEKEND DUE TO A WEAK PRESSURE PATTERN. ANOTHER TROUGH APPROACHES FROM THE NORTH ON MONDAY INCREASING THT SW TO W FLOW. && .PRELIMINARY POINT TEMPS/POPS... AMG 74 96 73 93 / 20 30 10 30 SSI 78 91 77 88 / 10 20 10 20 JAX 74 95 74 92 / 10 30 10 30 SGJ 75 92 76 90 / 10 20 20 20 GNV 75 96 75 93 / 10 40 10 40 OCF 75 95 75 93 / 10 50 20 40 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && WOLF/TRABERT/
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 316 AM EDT THU AUG 11 2011 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-121015- HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- ST JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE- JEFF DAVIS-BACON-APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY- INLAND GLYNN-COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN- COASTAL CAMDEN- 316 AM EDT THU AUG 11 2011 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. ...DANGEROUS HEAT INDICES EXPECTED THROUGH THE WEEKEND... .DAY ONE...TODAY AND TONIGHT... NEAR RECORD HIGH TEMPERATURES IN THE UPPER 90S TO AROUND 100 DEGREES WILL PUSH HEAT INDICES INTO THE 105 TO 110 RANGE DURING THE AFTERNOON HOURS. DRINK PLENTY OF FLUIDS...STAY IN AN AIR- CONDITIONING IF POSSIBLE...REMAIN OUT OF THE SUN...AND TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. ISOLATED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING...AND A FEW MAY CONTAIN STRONG GUSTY WINDS AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... DANGEROUS HEAT INDICES INTO THE 105 TO 110 RANGE WILL BE POSSIBLE EACH AFTERNOON FROM FRIDAY THROUGH THE WEEKEND. ISOLATED TO SCATTERED THUNDERSTORM ACTIVITY CAN BE EXPECTED EACH DAY THROUGH THE PERIOD. ACTIVITY MAY BE STRONG AT TIMES OVER THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT REQUESTED AT THIS TIME. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
536 PM EDT THU AUG 11 2011
GAZ132>135-150-112215-
APPLING-BACON-COFFEE-JEFF DAVIS-WARE-
536 PM EDT THU AUG 11 2011
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EXTREME
NORTHWESTERN WARE...JEFF DAVIS...APPLING...BACON AND COFFEE COUNTIES
FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 615
PM EDT...
AT 536 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 5 MILES NORTH OF
PLANT HATCH TO SNIPESVILLE TO 14 MILES WEST OF AMBROSE...MOVING EAST
AT 25 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
SNIPESVILLE...PRIDGEN...HAZLEHURST...PLANT HATCH...DENTON...
AMBROSE...GRAHAM...BROXTON...PINE GROVE AND WEST GREEN THROUGH 615 PM
EDT. HAIL UP TO THREE QUARTER INCH IN DIAMETER...EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL
PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING
AREAS.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3197 8242 3190 8211 3184 8207 3177 8210
3177 8213 3172 8213 3160 8220 3143 8245
3141 8314 3146 8316 3149 8311 3161 8306
3167 8301 3178 8300 3179 8287 3193 8268
3193 8262 3197 8255 3195 8250 3198 8249
TIME...MOT...LOC 2136Z 285DEG 23KT 3199 8230 3174 8272
3153 8320
ENYEDIThe national radar mosaic for the moment the first event began.
7 thunderstorm wind. Local standard time, as filed.
Trees were blown down along Yawn Road. The time of damage was based on radar.
Trees were blown down along Mora Road and Bridgetown Road.
The county dispatch reported structural damage to a home along with downed trees. The time was based on radar imagery.
Down burst winds blew down several trees along Antioch Church Road. The trees landed on a power substation. A large portion of the county was without power, and the road to the power station was closed until 2 am LST on the 12th.
Down burst winds tore the front porch off of a mobile home along Sutton Road and peeled back part of the roof. A large oak tree was blown down on nearby Will Lewis Road.
Numerous trees were blown down onto power lines.
Three trees were blown down onto power lines along the Gibbs Street Extension.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2011Every state in 2011This day in weather historyWarnings in Georgia, August 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 329644, 329645, 329646, 329649, 329650, 329652, 329653.