Thunderstorms developing along sea breeze boundaries over interior South Florida produced a brief tornado in the Big Cypress Preserve.
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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 MFL wrote it up.
Thunderstorms developing along sea breeze boundaries over interior South Florida produced a brief tornado in the Big Cypress Preserve.
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 Miami, FL wrote its last area forecast discussion before the first event at Sep 22, 1:39 PM EST, 5 hours 21 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 239 PM EDT SAT SEP 22 2007 .DISCUSSION...HIGH PRESSURE RIDGE WILL BUILD INTO THE EASTERN STATES BEFORE MOVING INTO THE WESTERN ATLANTIC EARLY NEXT WEEK. THIS WILL ALLOW THE CONVECTION WHICH EXTENDS OVER THE EASTERN GULF AND WESTERN CARIBBEAN SEA TO SHIFT WEST AWAY FROM THE AREA. AN EASTERLY FLOW REGIME WILL SET IN LOCALLY OVER THE NEXT SEVERAL DAYS ALONG WITH A CONTINUED MOIST ENVIRONMENT. DID NOT MAKE MAJOR CHANGES TO THE FORECAST...MAINTAINING HIGHEST POPS INTERIOR/GULF COAST OVER THE NEXT FEW DAYS...WITH ISOLATED ACTIVITY ALONG THE ATLANTIC COAST AT NIGHT. DID INCREASE POPS A TAD FOR MONDAY. GFS SHOWS A MID LEVEL SHORTWAVE MOVING IN FROM THE NORTHEAST AROUND THE EASTERN PERIPHERY OF THE HIGH WHICH WILL BE POSITIONED ACROSS THE SE STATES ON MONDAY. THERE IS A WEAK TROUGH AT 700-850MB REFLECTED IN THE LOWER LEVELS. ALSO...SOUTH FL MAY BE POSITIONED IN THE DIVERGENCE REGION AT UPPER LEVELS...BETWEEN AN UPPER HIGH TO THE WEST AND AN UPPER LOW TO THE EAST. THIS COULD PROVIDE A SLIGHTLY BETTER FOCUS FOR CONVECTION ON MONDAY...SO TRENDED POPS UPWARDS SIDING CLOSER TO THE GFS THAN THE NAM. MADE NO CHANGES TO THE EXTENDED FORECAST. GFS SHOWS THE ATLANTIC HIGH SHIFTING EAST WITH A COLD FRONT MOVING INTO POSSIBLY NORTH FL BY THE LATTER PART OF THE WEEK. THE LOCAL AREA WILL SEE A LIGHT WIND FLOW PATTERN THEN WITH SCATTERED MAINLY AFTERNOON/EVENING THUNDERSTORMS CONTINUING. && .AVIATION...KEPT VCTS UNTIL LATE AFTERNOON THIS PACKAGE AT EAST COAST TERMINALS DUE TO INSTABILITY AND ACTIVITY ROLLING IN OFF THE ATLANTIC BEHIND EAST COAST SEA BREEZE...BUT FEEL THIS POSES MAINLY A SHOWER THREAT. CARRIED VCSH ALL NIGHT EAST COAST TERMINALS AS SCT SHRA SHOULD FORM OVER THE ATLANTIC WATERS AND ROLL ONTO THE EAST COAST BEFORE DISSIPATING WITH THE EASTERLY FLOW REGIME. BRIEF PERIODS OF MVFR CONDITIONS WITH ANY SHOWER/STORM BUT SHOULD NOT LAST LONG. EXPECT TSTMS TO ORGANIZE OVER THE INTERIOR AND MARCH TOWARDS KAPF LATE THIS AFTERNOON/EARLY THIS EVENING...BUT NO TEMPO GROUP YET DUE TO TIMING UNCERTAINTIES. POSSIBLE IFR CIGS/VSBYS AS THE STORMS MOVE THROUGH...AND MAYBE SOME SFC GUSTS AOA 30 KNOTS. CLEARING OUT AT KAPF AFTER MID EVENING WITH VFR THROUGH THE OVERNIGHT. && .MARINE...A GENERAL EASTERLY WIND FLOW WILL PREVAIL ACROSS THE LOCAL COASTAL WATERS OVER THE NEXT SEVERAL DAYS WITH SPEEDS GENERALLY IN THE 10-13 KT RANGE. THIS WILL KEEP WAVEHEIGHTS AT 4 FT OR LESS...SO NO HIGHLIGHTS NEEDED. && .FIRE WEATHER...NO CONCERNS DUE TO HIGH LEVELS OF MOISTURE. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 77 88 77 86 / 40 40 30 50 FORT LAUDERDALE 78 87 79 87 / 40 40 30 50 MIAMI 78 88 78 88 / 40 40 30 50 NAPLES 75 91 74 90 / 40 60 30 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && DISCUSSION/MARINE/FIRE WEATHER...57/DG AVIATION...65/GS
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED NATIONAL WEATHER SERVICE MIAMI FL 1028 AM EDT SAT SEP 22 2007 FLZ063-066>075-168-172>174-230215- GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER- INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE- METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 1028 AM EDT SAT SEP 22 2007 ...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS EXPECTED TODAY... ...WIND GUSTS 40 TO 50 MPH POSSIBLE IN STRONGEST STORMS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS ALL OF MAINLAND SOUTH FLORIDA AND THE ADJACENT COASTAL WATERS. THIS ACTIVITY WILL DEVELOP OVER THE EASTERN SECTIONS AND MOVE WESTWARD IN THE AFTERNOON WITH THE HIGHEST CHANCES OVER THE WESTERN AREAS. OCCASIONAL TO FREQUENT LIGHTNING STRIKES, LOCALLY HEAVY RAINS AND WIND GUSTS TO NEAR 50 MPH CAN BE EXPECTED IN THE STRONGEST STORMS. FLOODING: ATMOSPHERIC MOISTURE CONTINUES TO BE RELATIVELY HIGH OVER SOUTH FLORIDA. THE STRONGEST STORMS WILL OCCUR OVER THE WESTERN AREAS OF SOUTH FLORIDA AT THE TIME OF MAXIMUM HEATING AS THE ACTIVITY MOVES NORTHWEST. FLOODING OF POORLY DRAINED AREAS... ESPECIALLY ROADWAYS...IS POSSIBLE INTO THE EVENING HOURS. THERE IS ALSO A SLIGHT CHANCE FOR URBAN TYPE FLOODING OVER THE EAST COAST METRO AREAS IF HEAVY RAINFALL OCCURS TODAY SINCE THESE AREAS RECEIVED A LOT OF RAIN YESTERDAY. WIND: THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 40 TO 50 MPH TODAY. THESE WINDS COULD BE STRONG ENOUGH TO BLOW AROUND LIGHT OBJECTS LEFT OUTDOORS AND DOWN LARGE TREE BRANCHES. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SCATTERED THUNDERSTORMS ARE EXPECTED TO OCCUR EACH DAY THROUGH THE PERIOD. LIGHTNING STRIKES AND LOCALLY HEAVY RAINFALL WILL BE THE MAIN IMPACTS FROM THE STORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED FOR PART OF THE AREA THIS AFTERNOON IF STRONG STORMS DEVELOP. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 243 PM EDT SAT SEP 22 2007 FLZ066-067-071-221945- HENDRY FL-INLAND PALM BEACH COUNTY FL-INLAND BROWARD COUNTY FL- 243 PM EDT SAT SEP 22 2007 ...STRONG THUNDERSTORM OVER BIG CYPRESS AND ROTENBERGER... AT 243 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR ROTENBERGER WILDLIFE MANAGEMENT AREA... MOVING NORTHWEST AT 15 MPH. THIS STORM WILL AFFECT... ROTENBERGER WILDLIFE MANAGEMENT AREA... BIG CYPRESS SEMINOLE INDIAN RESERVATION... AND SURROUNDING COMMUNITIES. FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS TO 50 MPH...DIME-SIZED HAIL...TORRENTIAL DOWNPOURS...OR A COMBINATION OF THESE ARE POSSIBLE. LIGHTNING IS THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. WIND GUSTS OF UP TO 50 MPH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES. RESIDENTS NEAR THE PATH OF THIS STORM SHOULD REMAIN ON THE ALERT FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. LAT...LON 2640 8120 2667 8095 2638 8064 2622 8084 TIME...MOT...LOC 1843Z 130DEG 14KT 2635 8084 STRASSBERG
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 509 PM EDT SAT SEP 22 2007 FLZ069-070-222215- COASTAL COLLIER COUNTY FL-INLAND COLLIER COUNTY FL- 509 PM EDT SAT SEP 22 2007 ...STRONG THUNDERSTORM MOVING ACROSS SOUTH CENTRAL COLLIER COUNTY... AT 507 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR OCHOPEE...MOVING NORTHWEST AT 10 TO 15 MPH. THIS STORM WILL AFFECT... OCHOPEE... CARNESTOWN... COPELAND... DEEP LAKE... AND SURROUNDING COMMUNITIES. FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS TO 50 MPH...PEA-SIZED HAIL...TORRENTIAL DOWNPOURS...OR A COMBINATION OF THESE ARE POSSIBLE. LIGHTNING IS THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. WIND GUSTS OF UP TO 50 MPH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES. RESIDENTS NEAR THE PATH OF THIS STORM SHOULD REMAIN ON THE ALERT FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. LAT...LON 2590 8166 2613 8152 2594 8120 2581 8126 TIME...MOT...LOC 2109Z 115DEG 12KT 2590 8130 BAXTER
The Miami radar (KAMX), 108 km away, was scanning. The volume nearest the first event began at 00:01 UTC.
1 tornado. Local standard time, as filed.
Numerous reports received by Collier County EOC by motorists along Alligator Alley of a brief tornado touchdown near the intersection of Alligator Alley (I-75) and State Road 29. No damage reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2007Every state in 2007This day in weather historyThe tornado archive for Florida, 2007Warnings 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: 60550.