Prevailing SW flow and high diurnal instability combined with a lingering frontal zone over SE Ga triggered severe storms across the area. Sea breeze and outflow enhanced storm development in the afternoon and evening.
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.
Prevailing SW flow and high diurnal instability combined with a lingering frontal zone over SE Ga triggered severe storms across the area. Sea breeze and outflow enhanced storm development in the afternoon and evening.
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 14, 1:12 PM EST, 4 hours 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 212 PM EDT WED AUG 14 2013 .SHORT TERM...TONIGHT AND THURSDAY... SCATTERED WEAK CONVECTION MOVING NE ACROSS NE FL SO FAR TODAY. SW WINDS NEAR 10 MPH THIS AFTERNOON WILL KEEP EAST COAST SEABREEZE FRONT PINNED AT THE COAST. EXPECT AN POSSIBLE INCREASE IN COVERAGE LATE WHEN CONVECTION NEARS THE EAST COAST BUT PRESENCE OF DRY AIR ALOFT WILL KEEP COVERAGE SCATTERED AT BEST. OVER SE GA EXPECT BETTER COVERAGE OF STORMS SOUTH OF COLD FRONT WHICH IS LOCATED OVER CENTRAL GA. STRONG HEATING MAY RESULT IN ISOLATED STRONG TO SEVERE STORMS THIS EVENING AS UPPER SHORT WAVE NOW OVER AL APPROACHES AND INCREASES LIFT. EXPECT SIMILAR CONDITIONS ON THURSDAY WITH HIGHEST POPS OVER SE GA AS FRONTAL BOUNDARY CREEPS A LITTLE CLOSER TO SE GA. THU NIGHT THROUGH FRI NIGHT... INCREASING SOUTHWESTERLY FLOW WILL PUSH DEEP MOISTURE ACROSS THE REGION. NUMEROUS SHWRS/TSTMS WILL CONTINUE THU EVENING THEN DECREASE OVERNIGHT. NUMEROUS STORMS ARE EXPECTED AGAIN FRI AFTN/EVENING. WILL ADD AN AREA OF CATEGORICAL POPS FOR A PORTION OF SE GA LATE FRI AS THE FRONTAL BOUNDARY CREEPS CLOSER. LOCALLY HEAVY RAINFALL WILL BE THE MAIN CONCERN. TEMPS WILL BE NEAR OR SLIGHTLY BELOW NORMAL. .LONG TERM...SATURDAY THROUGH WEDNESDAY... RIDGING OVER THE WRN ATLANTIC AND A TROUGH FROM THE MID-WEST TO THE CENTRAL GULF COAST WILL PROVIDE SW FLOW ALOFT..RESULTING IN NUMEROUS SHOWERS/TSTMS DURING THE AFTN INTO THE EVENING HOURS THROUGH THE WEEKEND. WITH DEEP MOISTURE AND LIFT...SLIGHT PRECIP CHANCES WILL CONTINUE DURING THE NIGHT. SIGNIFICAN RAINFALL OF 2-4 INCHES IS POSSIBLE OVER THE WEEKEND. THE UPPER RIDGE WILL BUILD WEST ACROSS THE AREA EARLY NEXT WEEK WITH DRYING ALOFT BRINGING POP BACK TO NEAR NORMAL FOR MON/TUE. DAYTIME TEMPERATURES WILL BE SLIGHTLY BELOW AVERAGE THIS WEEKEND DUE TO CLOUDS AND PRECIP EXPECTED...WITH NEAR NORMAL HIGHS MON-WED. TEMPERATURES WILL BE NEAR NORMAL THROUGH THE PERIOD. && .AVIATION... HAVE VCTS AT NE FL TAF SITES TIL 00Z WITH SCATTERED TSRA ACTIVITY EXPECTED. WILL GO WITH TEMPO TSRA 21Z-01Z AT SSI AS LATE DAY STORMS WILL DEVELOP AND INCREASE OVER S GA AHEAD OF COLD FRONT. && .MARINE... NOCTURNAL SW WIND SURGE AGAIN TONIGHT WITH SCEC CONDITIONS EXPECTED TO DEVELOP OVER THE OFFSHORE ZONES. SCATTERED THUNDERSTORMS WILL MOVE INTO THE COASTAL WATERS LATE THIS AFTERNOON AND EVENING. AN APPROACHING COLD FRONT WILL LIKELY REMAIN JUST NORTH OF THE WATERS BUT STILL EXPECT ENHANCED COVERAGE OF TSTMS THROUGH THE WEEKEND. RIP CURRENTS: LOW RISK THROUGH THURSDAY DUE TO OFFSHORE FLOW AND DECREASING EASTERLY SWELL. && .PRELIMINARY POINT TEMPS/POPS... AMG 73 88 73 87 / 60 80 80 80 SSI 76 87 77 84 / 70 60 60 70 JAX 74 91 75 88 / 50 60 60 70 SGJ 75 88 75 87 / 50 60 60 70 GNV 73 92 73 88 / 20 50 50 70 OCF 73 93 73 88 / 10 50 50 70 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ZIBURA/TRABERT/WALKER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 130 PM EDT WED AUG 14 2013 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-151000- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM- FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM- ST AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE- FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE- ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-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- 130 PM EDT WED AUG 14 2013 ...ISOLATED STRONG TO SEVERE STORMS POSSIBLE IN SE GEORGIA LATE THIS AFTERNOON AND EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA... SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...THIS AFTERNOON AND TONIGHT... A FRONTAL BOUNDARY WILL APPROACH SOUTHEAST GEORGIA AND COMBINE WITH A VERY MOIST AND UNSTABLE ATMOSPHERE TO PRODUCE NUMEROUS STORMS LATE THIS AFTERNOON AND EVENING. A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE. THE MAIN CONCERNS WILL BE STRONG GUSTY WINDS AND LOCALLY HEAVY RAINFALL. ACTIVITY ACROSS NORTHEAST FLORIDA WILL REMAIN MORE SCATTERED AND NOT AS STRONG. STORMS TODAY WILL MOVE TO THE EAST AT AROUND 15 MPH. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... A STALLED FRONTAL BOUNDARY WILL MAINTAIN INCREASED THUNDERSTORM ACTIVITY FOR THE LAST HALF OF THE WEEK THROUGH THE WEEKEND. IN ADDITION...DEEP TROPICAL MOISTURE IS EXPECTED TO WORK INTO THE REGION...PRODUCING THE POTENTIAL FOR SIGNIFICANT RAINFALL. .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. JDS/MZ
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
437 PM EDT WED AUG 14 2013
GAZ162-163-142115-
CLINCH-ECHOLS-
437 PM EDT WED AUG 14 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHERN CLINCH
AND EASTERN ECHOLS COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING
VALID UNTIL 515 PM EDT...
AT 437 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED OVER ECHOLS COUNTY...MOVING NORTHEAST AT 20
MPH. THESE STRONG THUNDERSTORMS WILL IMPACT MAINLY RURAL AREAS OF THE
INDICATED COUNTIES THROUGH 515 PM EDT. EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3085 8293 3098 8265 3102 8259 3101 8257
3092 8249 3082 8249 3082 8246 3065 8282
TIME...MOT...LOC 2037Z 236DEG 17KT 3075 8283
TRABERTSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 511 PM EDT WED AUG 14 2013 GAZ150-163-164-142145- CHARLTON-CLINCH-WARE- 511 PM EDT WED AUG 14 2013 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CENTRAL WARE... EASTERN CLINCH AND NORTHWESTERN CHARLTON COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 545 PM EDT... AT 511 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS CENTERED 14 MILES WEST OF STEVEN FOSTER STATE PARK... MOVING EAST AT 20 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND STEVEN FOSTER STATE PARK THROUGH 545 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 3106 8237 3082 8225 3074 8266 3091 8269 TIME...MOT...LOC 2111Z 248DEG 17KT 3085 8258 TRABERT
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
531 PM EDT WED AUG 14 2013
FLZ037-038-142215-
FLAGLER-PUTNAM-
531 PM EDT WED AUG 14 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHEASTERN
PUTNAM AND FLAGLER COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING
VALID UNTIL 615 PM EDT...
AT 531 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 16 MILES SOUTH OF CRESCENT CITY...MOVING
NORTHEAST AT 20 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT
AREAS AROUND CRESCENT CITY...PALM COAST...FLAGLER BEACH...ESPANOLA...
BUNNELL AND ANDALUSIA THROUGH 615 PM EDT. 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 2941 8115 2928 8115 2926 8118 2926 8141
2939 8143 2937 8145 2932 8167 2933 8168
2936 8166 2937 8172 2940 8175 2942 8174
2943 8178 2948 8177 2967 8120 2943 8109
TIME...MOT...LOC 2131Z 205DEG 17KT 2925 8141
HESSSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
547 PM EDT WED AUG 14 2013
GAZ150-152-164-142230-
BRANTLEY-CHARLTON-WARE-
547 PM EDT WED AUG 14 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN WARE...
WESTERN BRANTLEY AND NORTHERN CHARLTON COUNTIES FOR STRONG WINDS AND
EXCESSIVE LIGHTNING VALID UNTIL 630 PM EDT...
AT 547 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 12 MILES SOUTHWEST
OF BRAGANZA TO 12 MILES SOUTHWEST OF RACE POND...MOVING NORTHEAST AT
20 MPH. THESE THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND BRAGANZA...
RACE POND...FORT MUDGE...WINOKUR...HOBOKEN AND HICKOX THROUGH 630 PM
EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45
MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3096 8191 3084 8233 3104 8241 3122 8217
3122 8216 3124 8214 3128 8209 3127 8206
TIME...MOT...LOC 2147Z 227DEG 19KT 3100 8232 3091 8227
TRABERTSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
551 PM EDT WED AUG 14 2013
GAZ133-135-142215-
APPLING-JEFF DAVIS-
551 PM EDT WED AUG 14 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHERN JEFF
DAVIS AND NORTHWESTERN APPLING COUNTIES FOR EXCESSIVE LIGHTNING VALID
UNTIL 615 PM EDT...
AT 551 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM HAZLEHURST TO 3
MILES EAST OF PLANT HATCH...MOVING NORTHEAST AT 20 MPH. THESE
THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND HAZLEHURST...GRAHAM AND
PLANT HATCH THROUGH 615 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING
CAN BE EXPECTED. POSTPONE OUTDOOR ACTIVITIES PROMPTLY. GO QUICKLY
INSIDE A COMPLETELY ENCLOSED BUILDING. UNPLUG ELECTRONIC DEVICES AND
APPLIANCES AS THEY ARE SUSCEPTIBLE TO POWER SURGES AND MAY BE DAMAGED
BY NEARBY LIGHTNING STRIKES.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3197 8242 3194 8236 3194 8228 3191 8222
3190 8216 3188 8218 3178 8279 3189 8274
3191 8269 3193 8268 3192 8264 3197 8254
3195 8250 3198 8249
TIME...MOT...LOC 2151Z 226DEG 18KT 3188 8260 3194 8228
TRABERTSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
612 PM EDT WED AUG 14 2013
FLZ037-038-040-142300-
FLAGLER-MARION-PUTNAM-
612 PM EDT WED AUG 14 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHEASTERN
PUTNAM...NORTHEASTERN MARION AND FLAGLER COUNTIES FOR STRONG WINDS...
SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 700 PM EDT...
AT 613 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 9 MILES SOUTH OF
BUNNELL TO 6 MILES SOUTH OF GEORGETOWN...MOVING NORTH AT 10 MPH.
THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND SALT
SPRINGS...GEORGETOWN...FRUITLAND...CRESCENT CITY...LAKE DELANCY...
WELAKA...SATSUMA...SAN MATEO...POMONA PARK AND PALM COAST THROUGH 700
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 2926 8116 2926 8141 2939 8143 2937 8145
2932 8167 2928 8164 2920 8164 2919 8180
2959 8184 2963 8122 2941 8114 2941 8115
2927 8114
TIME...MOT...LOC 2213Z 168DEG 9KT 2935 8124 2933 8164
HESSThe Jacksonville radar (KJAX), 120 km away, was scanning. The volume nearest the first event began at 22:14 UTC.
6 thunderstorm wind. Local standard time, as filed.
A few trees were blown down into power lines at Black Point Road and State Road 100 West of Bunnell.
A tree was blown down onto power lines at 31 Porcupine Drive in Palm Coast.
A tree was blown down across Sawgrass Road near Bunnell.
A tree was blown down across State Road 100 in Andalusia.
A barge broke away at the Crowley Terminal due to strong thunderstorm winds. The cost of damage was unknown. The barge was retrieved.
A tree was blown down and blocked the road. The time of the damage was based on radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2013Every state in 2013This day in weather historyWarnings in Florida, August 2013
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: 470489, 470490, 470491, 470492, 470494, 470493.