A thunderstorm ahead of the sea breeze produced a brief funnel cloud near the Orlando International Airport.
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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 MLB wrote it up.
A thunderstorm ahead of the sea breeze produced a brief funnel cloud near the Orlando International Airport.
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 Melbourne, FL wrote its last area forecast discussion before the first event at Sep 18, 9:30 AM EST, 3 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 1030 AM EDT SUN SEP 18 2011 .DISCUSSION... ...POTENTIAL FOR LOCALLY HEAVY RAINFALL THROUGH TONIGHT ALONG THE VOLUSIA/NORTH BREVARD COASTS... CONTINUING TO MONITOR SLOW MOVING FRONTAL BDRY LYING BTWN DAB AND XMR. OVERALL SHRA/TS ACTIVITY HAS WEAKENED OVER THE LAST 2-3HRS THOUGH STILL PRODUCING SOME HEAVIER DOWNPOURS IN THAT AREA. HAVE SOME CONCERN FOR REDEVELOPMENT OVERNIGHT AS NOCTURNAL ENHANCEMENT OF SFC MCONVG ALONG BDRY AS WELL AS MARINE INSTABILITY IS LIKELY TO INITIATE DEVELOPMENT ALONG THE BDRY. MUCH LIKE YESTERDAY...THIS MORNING'S RUN OF THE LCL WRF-ARW IS SHOWING THIS. ALREADY MADE QUICK UPDATES TO GRIDS (POPS/WX AND WINDS/TEMPS) TO ACCOUNT FOR ONGOING WX. EXPECT THAT WE WILL WIND UP RAISING POPS FOR COASTAL VOLUSIA/NORTHERN BREVARD AGAIN FOR THE TONIGHT PERIOD. OTHERWISE...ONSHORE FLOW AND CONTINUED LOW LEVEL MOISTENING WILL LEAD TO LOW END CHC (30) FOR DIURNAL SHRA/TS ALONG A FAST MOVING AND DIFFUSE ECSB. OUTSIDE OF AFOREMENTIONED RAINFALL OVER THE NE COASTAL COS...NO OTHER SIG CHGS PLANNED FOR THE FCST ATTM. && .AVIATION... IFR CIGS IN STRATUS/STFRA OVER THE NORTHERN SITES (LEE/SFB) HAS PRETTY MUCH LIFTED TO MVFR AND IS BREAKING UP SOME. COULD SEE SOME REDEVELOPMENT IN THIS AREA...AND PERHAPS A BIT FARTHER SOUTH... TONIGHT IF FRONTAL BDRY LEAKS SWD A BIT MORE. IN THE SHORT TERM THOUGH...MAIN CONCERN WILL BE CONTINUED MVFR TO IFR CIGS/VSBYS IN PRECIP AROUND DAB. THINK THERE WILL BE SOME REDEVELOPMENT IN THAT AREA TONIGHT...SO COINCIDENT WITH INCREASE IN POPS...WILL LKLY HIT THIS HARDER IN THE 18Z TAF FOR DAB AS WELL. && .MARINE...AS INDICATED BY SURFACE MESONET AND BUOY/CMAN OBS FROM 41012/SAUF1...LCL "WEDGE NOR'EASTER" (AS COINED BY WFO JAX) IS NOW IMPINGING UPON OUR FAR NRN WATERS WITH N-NNE WINDS AROUND 20KT). SCEC WILL BE EXTENDED INTO THE 0-20NM NORTHERN LEG...AND WILL NEED TO MONITOR CONDS CLOSELY AS SCA MAY BE NEEDED IN THIS AREA. (PREVIOUS DISCUSSION) TODAY/TONIGHT...MODERATE TO FRESH NE BREEZE WILL PREVAIL AS A HIGH PRES RIDGE BLANKETING THE ERN SEABOARD INTERACTS WITH AN INVERTED TROF EXTENDING FROM THE MID ATLC COAST TO THE NRN BAHAMAS. BUOY012 HAS HAD CAUTIONARY WINDS/SEAS SINCE EARLY SAT AFTN... CONDITIONS WILL SPREAD S THRU THE DAY AS THE RIDGE NUDGES OFFSHORE. THE NE WIND BUFFETING UP AGAINST THE SRLY GULF STREAM WILL KICK SEAS INTO THE CAUTIONARY RANGE OVER THE GULF STREAM N OF CAPE CANAVERAL BY MID AFTN. SEAS MAY REACH 7FT WELL OFFSHORE OVERNIGHT...BUT WOULD BE BRIEF AS WINDS WILL DIMINISH IN THE EARLY MORNING HRS AS THE INVERTED TROF DAMPENS OUT. && .MLB WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. && FORECAST/AVIATION...CRISTALDI IMPACT WX UPDATES....WEITLICH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 908 AM EDT SUN SEP 18 2011 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-182200- COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM- COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET OUT 20 NM- COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM- WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO 60 NM OFFSHORE- WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO 60 NM OFFSHORE- WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE- INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 908 AM EDT SUN SEP 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... A WEAK FRONTAL BOUNDARY...DEEP MOISTURE...AND ELEVATED ONSHORE FLOW ACROSS NORTH CENTRAL FLORIDA WILL FOCUS A NARROW BAND OF SHOWERS AND THUNDERSTORMS ACROSS VOLUSIA COUNTY TODAY. ADDITIONAL ISOLATED THUNDERSTORMS EXPECTED TO DEVELOP ACROSS THE AREA ALONG AND AHEAD OF THE EAST COAST SEA BREEZE INTO THIS AFTERNOON. THE PRIMARY THREAT FROM THESE STORMS WILL BE DANGEROUS CLOUD-TO- GROUND LIGHTNING AND A FEW STRONGER GUSTS UP TO 35 TO 40 MPH. STORM MOTION WILL BE TO THE SOUTHWEST AT 10 TO 15 MPH. RESIDENTS ARE REMINDED THAT LIGHTNING MAKES ALL THUNDERSTORMS POTENTIAL KILLERS. IF THUNDER IS HEARD...CEASE ALL OUTDOOR ACTIVITIES AND MOVE INDOORS IMMEDIATELY. .FLOOD IMPACT... A PERSISTENT BAND OF SHOWERS AND STORMS MOVING ONSHORE THE VOLUSIA COUNTY COAST WILL CREATE HEAVY RAINFALL AT TIMES TODAY WITH LOCAL PRECIPITATION AMOUNTS UP TO 3 TO 4 INCHES POSSIBLE. THIS AMOUNT OF RAIN MAY PRODUCE LOCALIZED FLOODING OF STREETS AND LOW LYING AREAS...MAINLY FROM DAYTONA BEACH NORTHWARD. .RIP CURRENT IMPACT... BREEZY NORTHEAST WINDS WILL GENERATE A MODERATE RIP CURRENT THREAT ALONG AREA BEACHES. THE THREAT WILL BE GREATEST AFTER 3:30 PM THIS AFTERNOON DUE TO TIDAL EFFECTS. CHECK WITH THE BEACH PATROL ABOUT OCEAN HAZARDS BEFORE ENTERING THE SURF. .MARINE THUNDERSTORM GUST IMPACT... A BAND OF SHOWERS AND THUNDERSTORMS MOVING ONSHORE THE VOLUSIA COUNTY COAST AND ISOLATED AFTERNOON STORMS DEVELOPING ALONG THE EAST COAST SEA BREEZE WILL HAVE THE POTENTIAL TO PRODUCE GUSTS AROUND 35 KNOTS TODAY. STORMS MOTION WILL BE TOWARD THE SOUTHWEST AROUND 10 TO 15 MPH. .WIND AND SEA IMPACT... A MODERATE TO FRESH NORTHEAST BREEZE WILL GENERATE ROUGH CONDITIONS OVER THE GULF STREAM TODAY. STRONGER WINDS NORTH OF CAPE CANAVERAL WILL ALLOW SEAS TO BUILD UP TO 6 FEET WITH A DOMINANT WAVE PERIOD AT OR BELOW 8 SECONDS. SEAS MAY BRIEFLY REACH THE 7 FOOT MARK AFTER LATE THIS EVENING. SMALL CRAFT OPERATORS SHOULD EXERCISE CAUTION IF VENTURING INTO THE OPEN ATLANTIC...ESPECIALLY OVER THE GULF STREAM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MOISTURE WILL INCREASE INTO EARLY NEXT WEEK...ALLOWING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO RETURN TO EAST CENTRAL FLORIDA THROUGH THE MIDDLE OF THE UPCOMING WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTERS ALONG THE VOLUSIA COUNTY COAST ARE REQUESTED TO REPORT RAINFALL AMOUNTS IN EXCESS OF 2 INCHES AND ANY LOCALIZED MINOR FLOODING. BRAGAW/WEITLICH
The Melbourne radar (KMLB), 75 km away, was scanning. The volume nearest the first event began at 17:28 UTC.
1 funnel cloud. Local standard time, as filed.
Scattered showers and thunderstorms formed out in front of the inland-propagating east coast sea breeze. A citizen observed a funnel cloud produced by one of the thunderstorms near the Orlando International Airport. The person viewing the funnel cloud reported that it did not touch down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2011Every state in 2011This day in weather historyWarnings in Florida, September 2011
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: 334359.