A cold front moving into south Georgia as well as the sea breezes spawned scattered severe storms across the forecast area in the afternoon and evening. An upper level low retrograding over the eastern Gulf of Mexico provided additional upper level support for updraft formation.
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 cold front moving into south Georgia as well as the sea breezes spawned scattered severe storms across the forecast area in the afternoon and evening. An upper level low retrograding over the eastern Gulf of Mexico provided additional upper level support for updraft formation.
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 Sep 12, 1:03 PM EST, 3 hours 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 203 PM EDT WED SEP 12 2007 .SHORT TERM...MEAN RIDGE AXIS LINGERS ACRS N/CTRL FL RESULTING IN SWLY FLOW PUSHING STORMS ACRS SUWANNEE VALLEY TOWARD THE EAST COAST. A CLOUD BANK MARKS A COLD FRONT POSITIONED OVER CENTRAL GA. DEWPOINTS ARE MOSTLY IN THE 70S ACRS THE CWA WITH SHOWERS AND STORMS POPPING IN THE UNSTABLE ATMOS. LAP SHOWS CAPES OF 2000-3000 J/KG AND HIGHEST THETA E OVER THE NWRN TIER IN GA WHERE LARGER STORMS ARE ERUPTING. WILL KEEP LIKELY POPS (60-70%) ACRS THE REGION THIS AFTN THEN TAPERING OFF THE HIGH CHANCE THIS EVENING. BY THURSDAY AFTN THE FRONT IS PROGGED TO DRIFT NWD IN RESPONSE TO A LOW DEVELOPING OVER LA. THIS WILL PLACE THE AXIS OF THE RIDGE OVER OVER N FL AND RESULTING IN HIGHER POPS IN SE GA. WILL GO WITH CHANCE POPS FOR FL ZONES AND LIKELY POPS FOR GA ZONES. BY FRIDAY THE MEAN RIDGE WILL DRIFT TO NEAR FL/GA BORDER...AND GFS PUSHES DEEP MOISTURE NORTH WITH THE FRONT. NAM SHOWS SLY FLOW MAINTAINING ABUNDANT MOISTURE OVER THE REGION. THE TRUTH LIKELY LIES SOMEWHERE IN BETWEEN...AND WILL BLEND THE POPS TO SHOW A CHANCE 30-40%. WARM TEMPS WILL BE ABOVE NORMAL....LOWER 90S TO LWR/MID 70S. ON SATURDAY A RATHER VIGOROUS SHORT WAVE TROUGH WILL DIVE INTO THE SOUTHEAST NUDGING THE COLD FRONT INTO THE CWA. ATTM WILL GO WITH A GOOD CHANCE (50%) POPS AREA-WIDE AS THE FRONT TREKS THRU THE AREA SAT/SAT NIGHT. CLOUDINESS ACCOMPANYING THE FRONT WILL HOLD TEMPS IN THE MID/UPPER 8OS. .LONG TERM...UPPER TROUGH IS EXPECTED TO SLIDE OFF THE ERN SEABOARD LEAVING BEHIND A CUT-OFF LOW JUST EAST OF FL THRU MID WEEK. AT THE SURFACE THE COLD FRONT WILL MOVE THRU THE AREA ON SUNDAY. MONDAY THRU WEDNESDAY...A SFC TROUGH WILL AMPLIFY OVER THE OFFSHORE WATERS FROM THE BAHAMAS TO DELMARVA. HIGH PRESSURE WILL THEN WEDGE ALONG THE APPALACHIANS RESULTING IN A BREEZY NELY FLOW ACRS THE AREA FIRST HALF OF NEXT WEEK. THIS WILL KEEP TEMPS AOB NORMAL ESPECIALLY COOLER ALONG THE COAST. WITH TROFFINESS OFFSHORE COASTAL CLOUDS AND A CHNC OF SHOWERS WILL PERSIST. && .AVIATION...WITH A DELAYED START TO THE ACTIVITY...WAS ABLE TO PUSH BACK TEMPO GROUPS SLIGHTLY. STILL ON TRACK FOR NMRS TSRA FOR ALL THE TERMINALS THROUGH 00Z TONIGHT. EXPECT ENOUGH OF A PUSH FROM THE WEST COAST SEA BREEZE TO JUST WARRANT VCTS AFT 00Z. WITH LIGHT FLOW REGIME CONTINUING INTO THU...EXPECT ANOTHER LATER START AND WILL JUST INDICATE TEMPO THROUGH 18Z. THIS MAY NEED TO BE UPGRADED FOR GNV TO TEMPO WITH SUBSEQUENT FORECASTS. && .MARINE...MSAS AND BUOY OBSERVATIONS REVEAL A LIGHTER FLOW PATTERN THAN MODELS HAD BEEN ADVERTISING. BELIEVE WE WILL STILL SE AN EVENING SURGE BUT MAINLY OVER THE NORTHERN WATERS AND WILL CAP AT 15 KNOTS WITH NO HEADLINES ANTICIPATED. ONLY OTHER ISSUE TO DEAL WITH WILL BE THE POSSIBLE NORTHEAST FLOW EVENT SETTING UP FOR NEXT WEEK WITH INVERTED TROUGH AND HIGH BRIDGING TO THE NORTH. CONFIDENCE HIGHER DUE TO SEVERAL MODEL RUNS SHOWING THIS BUT LIMITED CHANGES TO THE EXTENDED PORTION AS CURRENT GRIDS HAVE A VERY GOOD HANDLE ON THE SITUATION. && .PRELIMINARY POINT TEMPS/POPS... AMG 70 89 70 91 / 40 60 40 40 SSI 76 87 76 88 / 40 50 30 30 JAX 73 90 73 91 / 40 50 30 30 SGJ 74 88 74 89 / 40 40 20 30 GNV 71 91 71 92 / 40 50 30 30 OCF 71 91 71 92 / 30 50 30 30 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && TRABERT/DEESE/KEEGAN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 500 AM EDT WED SEP 12 2007 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-131000- ALACHUA-APPLING-ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY- CAMDEN (COASTAL)-CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE- COLUMBIA-DUVAL-ECHOLS-FLAGLER-GILCHRIST-GLYNN (COASTAL)- GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-PIERCE-PUTNAM- ST JOHNS-SUWANNEE-UNION-WARE-WAYNE- 500 AM EDT WED SEP 12 2007 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... ...NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON... NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE AREA BY THIS AFTERNOON. SCATTERED STORMS ARE EXPECTED AS EARLY AS LATE MORNING ACROSS THE SUWANNEE VALLEY AND THEN SPREADING NORTHEAST ACROSS THE REMAINDER OF THE AREA. A FEW THUNDERSTORMS MAY BECOME STRONG WITH GUSTY WINDS TO 30 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING. SOME STORMS WILL ALSO PRODUCE LOCALLY HEAVY RAINFALL IN EXCESS OF 2 INCHES. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... SCATTERED AFTERNOON AND EVENING THUNDERSTORMS IS EXPECTED EACH DAY THROUGH SATURDAY. RAIN CHANCES ARE EXPECTED TO DECREASE LATE IN THE WEEKEND AND EARLY NEXT WEEK. .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. PP
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 447 PM EDT WED SEP 12 2007 GAZ154-122115- COASTAL GLYNN- 447 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EXTREME EASTERN GLYNN COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 515 PM EDT... AT 447 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM ST. SIMONS TO 3 MILES WEST OF JEKYLL ISLAND...MOVING EAST AT 35 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND ST. SIMONS...SEA ISLAND...JEKYLL ISLAND AND GLYNN HAVEN THROUGH 515 PM EDT. HAIL UP TO ONE HALF 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. ZAPPE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 454 PM EDT WED SEP 12 2007 GAZ132-134-122145- BACON-COFFEE- 454 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR SOUTHEASTERN COFFEE AND SOUTHWESTERN BACON COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 545 PM EDT... AT 454 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED OVER COFFEE COUNTY...OR 10 MILES NORTHEAST OF PEARSON...MOVING EAST AT 5 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND NICHOLLS THROUGH 545 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. DEESE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 508 PM EDT WED SEP 12 2007 FLZ024-025-GAZ166-122145- COASTAL CAMDEN-DUVAL-NASSAU- 508 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EASTERN NASSAU... NORTHEASTERN DUVAL AND EASTERN CAMDEN COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 545 PM EDT... AT 508 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORMS CENTERED 3 MILES NORTHWEST OF KINGS BAY BASE...MOVING NORTHEAST AT 10 MPH. THESE STRONG THUNDERSTORMS WILL AFFECT AREAS AROUND YULEE...FERNANDINA BEACH...ST. MARYS...KINGS BAY BASE...HARRIETTS BLUFF...DUNGENESS AND CUMBERLAND ISLAND THROUGH 545 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS UP TO 45 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. ZIBURA
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 530 PM EDT WED SEP 12 2007 FLZ025-122215- DUVAL- 530 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EXTREME EASTERN DUVAL COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 615 PM EDT... AT 530 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM LITTLE TALBOT ISLAND TO SAN PABLO...MOVING EAST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND TALBOT ISLAND...SAN PABLO...MAYPORT AND LITTLE TALBOT ISLAND THROUGH 615 PM EDT. HAIL UP TO ONE HALF 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. ZAPPE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 540 PM EDT WED SEP 12 2007 GAZ133-122230- JEFF DAVIS- 540 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR CENTRAL JEFF DAVIS COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 630 PM EDT... AT 540 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED OVER SNIPESVILLE...OR 11 MILES SOUTHWEST OF HAZLEHURST...MOVING EAST AT 5 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND DENTON THROUGH 630 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. DEESE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 542 PM EDT WED SEP 12 2007 FLZ033-122230- ST. JOHNS- 542 PM EDT WED SEP 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EXTREME NORTHEASTERN ST. JOHNS COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 630 PM EDT... AT 542 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 2 MILES NORTHWEST OF PONTE VEDRA BEACH TO 3 MILES SOUTHWEST OF PONTE VEDRA BEACH... MOVING EAST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND PONTE VEDRA BEACH THROUGH 630 PM EDT. HAIL UP TO ONE HALF 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. ZAPPE
The Jacksonville radar (KJAX), 30 km away, was scanning. The volume nearest the first event began at 21:49 UTC.
3 thunderstorm wind, 1 heavy rain. Local standard time, as filed.
Power lines were blown down in the Mayport area. The time of the event was estimated by Doppler radar.
The Marsh Landing Country Club reported trees were blown down along with numerous large limbs across the golf course. The time of the event is estimated based on radar.
Several large trees were blown down and bunkers were washed out due to heavy rain at the TPC at Sawgrass golf course in Ponte Vedra. The time of the event was estimated based on radar.
A 4x4 foot portion of a mobile home roof collapsed due to heavy rain accumulations. The cost of damage was estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2007Every state in 2007This day in weather historyWarnings in Florida, September 2007
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: 52623, 52624, 52625, 52622.