A surface front extended over NE Florida from the Gulf Coast region northeast toward Jacksonville. This feature combined with elevated moisture and instability fueled afternoon thunderstorms along the sea breezes and outflows.
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 surface front extended over NE Florida from the Gulf Coast region northeast toward Jacksonville. This feature combined with elevated moisture and instability fueled afternoon thunderstorms along the sea breezes and outflows.
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 31, 1:07 PM EST, 2 hours 33 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 207 PM EDT SAT AUG 31 2013 .SHORT TERM...THROUGH TONIGHT... SURFACE ANALYSIS INDICATES THE FRONTAL BOUNDARY IS DRIFTING NORTHWARD AND IS ACROSS NORTH FLORIDA NEAR I-10 TO THE FL/GA STATE LINE. SHOWERS/STORMS ARE DEVELOPING ALONG THE GULF COAST SEA BREEZE AND ALSO OVER SE GA WEST OF I-95. LOW/MID LEVEL TROUGH AXIS EXTENDS FROM THE NW GULF OF MEXICO TO JAX AND NE ALONG THE GA/SC COAST. DEEP SOUTH TO SWLY FLOW SOUTH OF THE TROUGH AXIS IS PUSHING SHOWERS/STORMS INTO OUR SOUTHERN SECTIONS. STORM MOTION OVER SE GA IS SLOW AND ERRATIC BUT IN GENERAL THE ACTIVITY IS SPREADING W/NW. HIGHEST RAINFALL TOTALS THUS FAR HAVE BEEN 1-2 INCHES IN SE GA. A FEW STORMS MAY BECOME STRONG WITH GUSTY WINDS...BUT HEAVY RAINFALL RESULTING FROM A SLOW MOVEMENT WILL BE THE PRIMARY CONCERN AGAIN. STORM ACTIVITY WILL SUBSIDE IN COVERAGE AND INTENSITY OVER INLAND AREAS AFTER SUNSET AND SHOULD END AROUND MIDNIGHT ONCE AGAIN. STILL EXPECT SOME STRONG STORMS WITH LOCALLY HEAVY RAINFALL DURING THE EARLY EVENING HOURS. PATCHY FOG WILL BE POSSIBLE ONCE AGAIN TOWARDS SUNRISE WITH DENSE FOG POSSIBLE ESPECIALLY NORTH OF THE FRONT WHICH WILL DRIFT INTO SE GA OVERNIGHT. .SUNDAY THROUGH TUESDAY...WEAK UPPER TROUGHING WILL REMAIN OVER THE AREA ON SUNDAY. SCATTERED P.M. CONVECTION WILL BE SLOW MOVING AGAIN ON SUNDAY AS STEERING CURRENTS WILL REMAIN WEAK. LOCALLY HEAVY RAINFALL WILL OCCUR DUE TO HIGH PWATS AND SLOW STORM MOTION. ON MONDAY AND TUESDAY THE STORM MOTION WILL INCREASE FROM THE SW AS NORTHERN STREAM UPPER TROUGH AMPLIFYS OVER THE EASTERN U.S. GENERALLY HAVE HIGH END SCATTERED AFTERNOON/EVENING POPS EACH DAY. .LONG TERM...WEDNESDAY THROUGH SATURDAY...WEAKNESS IN SUBTROPICAL RIDGE WILL PERSIST OVER THE AREA THROUGH THE PERIOD. LIGHT WIND FIELDS AND ADEQUATE MOISTURE/INSTABILTY WILL RESULT IN DIURNAL SEABREEZE STORMS...MORE NUMEROUS OVER INLAND AREAS. POPS WILL BE NEAR CLIMO WITH TEMPS AT OR SLIGHTLY ABOVE AVERAGE. && .AVIATION...HAVE VCTS AT TERMINALS THIS AFTN UNTIL NEAR SUNSET. HAVE INCLUDED MVFR CONDITIONS FOR PATCHY FOG LATE TONIGHT UNTIL AFTER SUNRISE. OTHERWISE PREVAILING VFR CONDS ARE EXPECTED. && .MARINE...RIDGE TO THE SOUTH WILL PRODUCE A SOUTH TO SOUTHWEST FLOW THE NEXT SEVERAL DAYS. NOCTURNAL WIND SURGES MAY APPROACH SCEC CONDITIONS OFFSHORE. SEAS WILL REMAIN 2 TO 3 FEET. RIP CURRENTS: LOW RISK THIS WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... AMG 73 94 72 94 / 30 40 40 40 SSI 77 91 75 90 / 20 40 40 40 JAX 72 93 72 94 / 30 50 50 50 SGJ 74 91 73 92 / 30 50 50 30 GNV 71 92 71 93 / 30 50 40 30 OCF 71 93 71 94 / 30 50 30 20 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ZIBURA/TRABERT/MCALLISTER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 154 PM EDT SAT AUG 31 2013 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-011800- 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- 154 PM EDT SAT AUG 31 2013 ...RIVER FLOOD WARNINGS IN EFFECT... ...LOCALLY HEAVY RAINFALL POSSIBLE IN SLOW MOVING SCATTERED THUNDERSTORM ACTIVITY TODAY THROUGH LABOR DAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA... SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...THIS AFTERNOON AND TONIGHT... FRONTAL BOUNDARY WILL REMAIN STATIONARY ACROSS NORTHEAST FLORIDA TODAY AND WILL BE THE FOCUS FOR SCATTERED THUNDERSTORMS. SLOW AND ERRATIC STORM MOTION WILL PROMOTE LOCALLY HEAVY RAINFALL IN EXCESS OF 2 INCHES POSSIBLE IN A FEW SPOTS WHICH COULD CAUSE LOCALIZED FLOODING AND AGGRAVATE ONGOING RIVER FLOODING CONCERNS. A FEW STRONG STORMS ARE POSSIBLE WHICH WILL BE CAPABLE OF PRODUCING GUSTY WINDS AND FREQUENT LIGHTNING STRIKES. PATCHY DENSE FOG WILL BE POSSIBLE LATE TONIGHT...MAINLY ACROSS INLAND SOUTHEAST GEORGIA. VISIBILITIES MAY DROP BELOW ONE HALF MILE TOWARDS SUNRISE. RIVER FLOODING WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE REGION. PLEASE REFER TO RIVER FLOOD STATEMENTS AND WARNINGS FOR DETAILS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... THE FRONTAL BOUNDARY WILL LIFT NORTH INTO SOUTHEAST GEORGIA AND WILL REMAIN THE FOCUS FOR SCATTERED THUNDERSTORMS DURING THE AFTERNOON AND EVENING HOURS. A SLOW NORTHEAST STORM MOTION WILL CONTINUE TO PROMOTE LOCALLY HEAVY RAINFALL IN EXCESS OF 2 INCHES POSSIBLE IN A FEW SPOTS WHICH COULD CAUSE LOCALIZED FLOODING AND AGGRAVATE ONGOING RIVER FLOODING CONCERNS. A FEW STRONG STORMS ARE POSSIBLE WHICH WILL BE CAPABLE OF PRODUCING GUSTY WINDS AND FREQUENT LIGHTNING STRIKES. ANOTHER COLD FRONT WILL PUSH INTO THE REGION AND STALL BY THE MID TO LATE PORTION OF NEXT WEEK WITH CONTINUED SCATTERED SHOWERS AND STORMS WITH LOCALLY HEAVY RAINFALL POSSIBLE AND CONTINUED RIVER FLOODING CONCERNS. .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. MT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 216 PM EDT SAT AUG 31 2013 FLZ037-040-311845- MARION-PUTNAM- 216 PM EDT SAT AUG 31 2013 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHERN PUTNAM AND NORTHEASTERN MARION COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 245 PM EDT... AT 216 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS CENTERED 4 MILES WEST OF SALT SPRINGS...MOVING NORTHEAST AT 5 MPH. THESE THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND SALT SPRINGS...FRUITLAND...LAKE DELANCY AND GEORGETOWN THROUGH 245 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 2955 8187 2942 8160 2928 8174 2933 8192 TIME...MOT...LOC 1816Z 209DEG 6KT 2933 8180 TRABERT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 248 PM EDT SAT AUG 31 2013 FLZ040-311930- MARION- 248 PM EDT SAT AUG 31 2013 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN MARION COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 330 PM EDT... AT 249 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 4 MILES SOUTHEAST OF FORT MCCOY...MOVING NORTHEAST AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND BURBANK...ANTHONY...FORT MCCOY...SALT SPRINGS AND HOG VALLEY THROUGH 330 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 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 2927 8215 2951 8191 2931 8167 2914 8169 TIME...MOT...LOC 1849Z 204DEG 14KT 2933 8193 ZIBURA
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
355 PM EDT SAT AUG 31 2013
FLZ036-037-040-312045-
ALACHUA-MARION-PUTNAM-
355 PM EDT SAT AUG 31 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN
ALACHUA...WESTERN PUTNAM AND CENTRAL MARION COUNTIES FOR STRONG WINDS
AND EXCESSIVE LIGHTNING VALID UNTIL 445 PM EDT...
AT 355 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM MELROSE TO 3 MILES
NORTH OF REDDICK TO 12 MILES SOUTH OF FLEMINGTON...MOVING NORTHWEST
AT 5 TO 10 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS
AROUND ROCHELLE...ORANGE HEIGHTS...NEWNANS LAKE...MICANOPY...
MELROSE...MCINTOSH...GROVE PARK...GAINESVILLE AIRPORT...FLEMINGTON
AND CROSS CREEK THROUGH 445 PM EDT. EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 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 2921 8240 2967 8241 2979 8220 2975 8206
2973 8205 2972 8205 2972 8203 2974 8200
2972 8194 2919 8233
TIME...MOT...LOC 1955Z 310DEG 5KT 2969 8203 2941 8217
2923 8234
ZIBURASPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
414 PM EDT SAT AUG 31 2013
FLZ038-312045-
FLAGLER-
414 PM EDT SAT AUG 31 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
FLAGLER COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL
445 PM EDT...
AT 414 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES WEST OF FLAGLER BEACH...MOVING
NORTHEAST AT 15 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS
AROUND FLAGLER BEACH AND PALM COAST THROUGH 445 PM EDT. EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 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 8116 2935 8115 2936 8122 2964 8131
2966 8121 2943 8110
TIME...MOT...LOC 2014Z 207DEG 12KT 2947 8120
ZIBURASPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 422 PM EDT SAT AUG 31 2013 FLZ032-312100- CLAY- 422 PM EDT SAT AUG 31 2013 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHERN CLAY COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 500 PM EDT... AT 422 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 3 MILES NORTHWEST OF PENNEY FARMS... MOVING NORTH AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND PENNEY FARMS...ASBURY LAKE...MIDDLEBURG...OAKLEAF PLANTATION...LAKESIDE...DOCTORS INLET AND BELLAIR THROUGH 500 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 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 3018 8203 3018 8174 2993 8175 2993 8197 TIME...MOT...LOC 2022Z 173DEG 7KT 3002 8186 ZIBURA
The Jacksonville radar (KJAX), 121 km away, was scanning. The volume nearest the first event began at 20:38 UTC.
1 thunderstorm wind, 1 funnel cloud. Local standard time, as filed.
Four tents and audio equipment were damaged by thunderstorm winds at the Palm Coast Wine Festival. The cost of damage was unknown and estimated so the event could be included in StormData.
A funnel cloud was observed near U.S. Highway 1 near the Callahan fairgrounds and moved north.
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: 472029, 472028.