A moist and unstable airmass across South Florida resulted in scattered afternoon showers and thunderstorms.
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 MFL wrote it up.
A moist and unstable airmass across South Florida resulted in scattered afternoon showers and thunderstorms.
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 5, 1:17 PM EST, 1 hour 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 217 PM EDT THU SEP 5 2013 .DISCUSSION... AN UPPER LEVEL TROUGH CONTINUES TO DIG ACROSS THE NORTHEAST CONUS AND WESTERN ATLANTIC THIS AFTERNOON. AN UPPER RIDGE WILL REMAIN STATIONARY OVER THE INTERMOUNTAIN WEST. THE MAIN ENERGY IN THE TROUGH WILL BEGIN TO LIFT OUT TO THE NORTHEAST ON FRIDAY...BUT A WEAKNESS WILL REMAIN. A SHORTWAVE WILL THEN MOVE INTO THE WEAKNESS ON FRIDAY AND REINFORCE THE TROUGH DOWN TO FLORIDA...AND HEIGHTS ARE FORECAST TO LOWER OVER THE REGION. TEMPERATURES ALOFT ARE ALSO EXPECTED TO COOL TO -8 TO -9C. MODERATE EASTERLY LOW/MID LEVEL FLOW WILL ALSO CONTINUE THROUGH FRIDAY. SO EXPECT MOST ACTIVITY TO BE ACROSS THE INTERIOR AND GULF COAST ONCE AGAIN. A FEW STRONG STORMS WILL BE POSSIBLE ACROSS THE INTERIOR AND TOWARDS THE GULF COAST...WITH SMALL HAIL...GUSTY WINDS AND FREQUENT LIGHTNING THE MAIN THREATS. WHATEVER IS LEFT OF GABRIELLE ON FRIDAY IS FORECAST TO MERGE WITH THE SYSTEM TO ITS NORTHEAST AND MOVE TO THE NORTH IN THE WEAKNESS LEFT BY THE TROUGH. THE LOW/MID LEVEL FLOW IS FORECAST TO BECOME MORE NORTHEASTERLY IN BETWEEN THIS SYSTEM AND SURFACE HIGH PRESSURE THAT WILL BE STRUNG OUT FROM SOUTHWEST TO NORTHEAST ALONG THE EASTERN CONUS AND WESTERN ATLANTIC. MODELS ARE INDICATING THAT A SURFACE TROUGH MAY MOVE ACROSS SOUTH FLORIDA ON SATURDAY...WHICH MAY INCREASE RAIN CHANCES...ESPECIALLY FOR THE INTERIOR AND WEST. A WEAK FRONTAL BOUNDARY MAY MOVE INTO CENTRAL FLORIDA AND NEAR LAKE OKEECHOBEE BY 12Z ON SUNDAY. SO WITH A LITTLE LOW LEVEL CONVERGENCE AND MOIST LOW LEVELS...SCATTERED SHOWERS MAY CONTINUE OVERNIGHT FOR THE EAST COAST METRO AREAS. THE EAST NORTHEAST FLOW IS FORECAST TO CONTINUE THROUGH SUNDAY. SOME DRIER LOW/MID LEVEL AIR MAY MOVE ACROSS THE NORTHERN HALF OF THE REGION AS THE WEAK BOUNDARY PUSHES INTO SOUTH FLORIDA BEFORE WASHING OUT. EVEN AFTER THE BOUNDARY WASHES OUT...DRIER LOW/MID LEVEL AIR WILL CONTINUE TO PUSH SOUTH ACROSS THE REGION ON MONDAY...WITH LOWER RAIN CHANCES. THE TROUGH WILL FINALLY LIFT OUT...AND MID/UPPER LEVEL HIGH PRESSURE WILL SHIFT EAST ACROSS THE SOUTHEAST STATES ON TUESDAY. SO EASTERLY FLOW WILL THEN RETURN THROUGH THE MIDDLE OF THE WEEK...WITH THE PATTERN BEING SIMILAR TO TODAY. && .AVIATION... FAIRLY TYPICAL SUMMERTIME CONVECTION FOR THE TAF PERIOD. HIGH PRESSURE TO THE NORTH IS KEEPING AN EASTERLY FLOW OVER SOUTH FLORIDA. THIS WILL CAUSE MOST OF THE AFTERNOON CONVECTIVE ACTIVITY WEST OF THE ATLANTIC COAST TAF SITES. IT WILL ALSO BRING OVERNIGHT SHOWERS TO THESE TAF SITES, WHICH SHOULD NOT AFFECT FLIGHT CONDITIONS. BASICALLY VFR CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD, WITH THE EXCEPTION OF BRIEF MVFR POSSIBLE DUE TO SHOWERS FOR THE EAST COAST TAFS SITES AND SHOWERS AND THUNDERSTORMS FOR KAPF. && .MARINE... EAST TO NORTHEAST WINDS 10 TO 15 KNOTS WILL CONTINUE THROUGH THE END OF THE WEEK AND INTO THE WEEKEND AS SURFACE HIGH PRESSURE REMAINS NORTH OF THE REGION. SEAS WILL REMAIN IN THE 1 TO 3 FOOT RANGE. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 79 89 78 88 / 20 20 20 40 FORT LAUDERDALE 81 89 80 89 / 20 20 20 40 MIAMI 79 90 79 89 / 20 20 20 40 NAPLES 76 93 76 92 / 20 40 20 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && DISCUSSION/MARINE/FIRE...84/AK AVIATION/RADAR...13/SI
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 932 AM EDT THU SEP 5 2013 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 060445- LAKE OKEECHOBEE-BISCAYNE BAY- COASTAL WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL OUT 20 NM- COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM- WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL EXTENDING FROM 20 NM TO 60 NM- WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING FROM 20 NM TO THE TERRITORIAL WATERS OF THE BAHAMAS-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- COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL OUT 20 NM- COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL OUT 20 NM- GULF WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM 20 TO 60 NM- 932 AM EDT THU SEP 5 2013 ...SCATTERED THUNDERSTORMS POSSIBLE TODAY MAINLY INTERIOR AND GULF COAST... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: ISOLATED MORNING THUNDERSTORMS ARE POSSIBLE FOR THE ATLANTIC COAST. SCATTERED THUNDERSTORMS ARE POSSIBLE TODAY IN THE AFTERNOON AND EARLY EVENING OVER INTERIOR AND GULF COAST SECTIONS. FREQUENT LIGHTNING WILL BE POSSIBLE. WIND: GUSTY WINDS OF 30 TO 40 MPH WILL BE POSSIBLE IN THE STRONGEST THUNDERSTORMS THIS AFTERNOON OVER THE INTERIOR AND GULF COAST. HAIL: HAIL UP TO DIME SIZE WILL BE POSSIBLE IN THE STRONGEST THUNDERSTORMS THIS AFTERNOON OVER THE INTERIOR AND GULF COAST. TEMPERATURES: MAXIMUM AFTERNOON HEAT INDEX READINGS ARE EXPECTED TO BE AROUND 100 TO 102 MOST AREAS, BUT AROUND 105 DEGREES ACROSS COLLIER COUNTY AND SOUTHERN HENDRY COUNTY. RIP CURRENTS: THERE IS A SLIGHT CHANCE OF RIP CURRENTS FOR THE ATLANTIC BEACHES. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED AFTERNOON AND EARLY EVENING THUNDERSTORMS ARE EXPECTED EACH DAY, MOST LIKELY OVER THE INTERIOR, WITH THE MAIN THREATS BEING FREQUENT LIGHTNING STRIKES AND LOCALLY HEAVY RAINFALL. A SLIGHT RISK OF RIP CURRENTS WILL CONTINUE ALONG THE EAST COAST BEACHES THROUGH THE WEEKEND, WITH STRONGER NORTHEAST WINDS POSSIBLY INCREASING THE RIP CURRENT RISK EARLY NEXT WEEK. TEMPERATURES WILL REMAIN SEASONABLY WARM WITH HEAT INDEX VALUES NEAR OR SLIGHTLY OVER 100 DEGREES OVER MANY AREAS AWAY FROM THE COASTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.
The Miami radar (KAMX), 151 km away, was scanning. The volume nearest the first event began at 20:11 UTC.
1 funnel cloud. Local standard time, as filed.
The Emergency Manager relayed a report from local Law Enforcement that a funnel cloud was observed along Immokalee Road 7 miles west-southwest of Felda.
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, September 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: 470957.