A combination of higher than normal tidal departures coupled with the perigean spring tide resulted in periodic minor flooding of low lying and vulnerable areas at high tides for several days during the end of September. Several roads, including major arteries, along the Palm Beach, Broward, and Miami-Dade coast experienced saw flooding high enough to result in road closures during times of high…
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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.
A combination of higher than normal tidal departures coupled with the perigean spring tide resulted in periodic minor flooding of low lying and vulnerable areas at high tides for several days during the end of September. Several roads, including major arteries, along the Palm Beach, Broward, and Miami-Dade coast experienced saw flooding high enough to result in road closures during times of high tide. Additional minor road flooding occurred along roads in Naples.
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 24, 1:57 AM EST, 5 hours 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 257 AM EDT THU SEP 24 2015 .DISCUSSION... A 500MB LOW CONTINUES TO SIT OVER THE FLORIDA PANHANDLE TODAY, SLOWLY PROGRESSING TO THE NORTH ON FRIDAY. THERE IS A WEAK INVERTED SFC TROUGH OVER THE FLORIDA PENINSULA AS WELL. THESE TWO FEATURES, COMBINED WITH PWATS AROUND 2 INCHES, WILL KEEP SHOWERS AND THUNDERSTORMS IN THE FORECAST TODAY AND TOMORROW, ESPECIALLY FOR THE INTERIOR AREA OF THE CWA. THE ATLANTIC COAST WILL ALSO SOME ENHANCED POPS, AS THE ATLANTIC SEA BREEZE, AIDED BY THE EAST FLOW, WILL ALSO HELP TO TRIGGER CONVECTION. LOOKING AT SOME OF THE PARAMETERS FOR TODAY, IT IS INTERESTING, AS BOTH THE NAM MODEL SOUNDINGS AND THE GFS MODEL SOUNDINGS, BOTH SHOW FAIRLY LOW CAPE, AT LESS THAN 1000 J/KG IN GENERAL. ALSO, THE NCAPE IS LESS THAN .1, INDICATING VERY WEAK VERTICAL VELOCITY WITH THE STORMS TODAY. THE MBE VELOCITY VARIES THROUGH THE DAY BETWEEN LESS THAN 10 KTS, TO AROUND 20 KTS. SO, ANY CONVECTION WILL LIKELY NOT MOVE TO FAST TODAY. THE 500MB TEMPERATURE IS AROUND -8C. THE NAM MODEL SOUNDING DOES SHOW AN INVERSION DEVELOPING THIS AFTERNOON AT BETWEEN 600MB AND 500MB, WHEREAS THE GFS DOES NOT SHOW ANY SIGNIFICANT INVERSION. LAST NIGHTS SOUNDING SHOWS A INVERSION BETWEEN 800MB AND 700MB, WITH A SLIGHT INVERSION AROUND 600MB. THE 700MB-500MB LAPSE RATES ARE ALSO NOT VERY IMPRESSIVE, SITTING RIGHT AROUND 5 C/KM. BUT, WITH THE SEA BREEZE LIKELY DEVELOPING, WOULD EXPECT CONVECTION TO DEVELOP WITH PLENTY OF MOISTURE AND MAX TEMPS IN THE MID TO UPPER 80S. WITH SLOW MOVING STORMS, THERE MAY BE SOME LOCALIZED URBAN PONDING OF WATER. HOWEVER, THE STORMS WILL LIKELY BE PULSE TYPE STORMS IN NATURE. FOR TOMORROW, THE 500MB LOW DRIFTS TO THE NORTH. HOWEVER, THE SET UP STILL LOOKS SIMILAR TO TODAY. THE DIFFERENCE IS THAT SOME DRIER AIR MAY MOVE IN, WITH PWATS DROPPING AROUND A QUARTER OF AN INCH. THE LOW LEVEL WIND WILL REMAIN OUT OF THE EAST, ENHANCING THE ATLANTIC SEA BREEZE. THIS WILL ALSO HELP TO TRIGGER CONVECTION FROM THE EAST COAST TO THE INTERIOR SEEING THE BEST CHANCES. FOR THE REST OF THE FORECAST PERIOD, THE GFS AND THE ECMWF ARE IN GOOD AGREEMENT, WITH THE 500MB LOW BECOMING BROAD BEFORE REFORMING OVER THE WESTERN GULF. THEY ALSO SHOW SOME RIDGING OVER THE AREA. THIS WILL HELP TO REDUCE THE CHANCES SOME OVER THE CWA, WITH BETTER CHANCES OVER THE INTERIOR. THE PATTERN REMAINS FAIRLY STAGNANT THE THE MIDDLE OF NEXT WEEK, ALLOWING THE FORECAST TO BE FAIRLY SIMILAR THROUGH THE MIDDLE OF NEXT WEEK. && .AVIATION... DEEP AND MOIST SOUTHERLY FLOW WITH A WEAK SURFACE TROUGH ALONG THE EAST COAST IS SPARKING SHRA/TSRA EARLY THIS MORN OVER THE WATER AND KEYS...WITH A FEW BRUSHING THE COAST. MESO MODELS DEVELOP ACTIVITY ALONG/JUST OFFSHORE THE EAST COAST THROUGH THE EARLY MORN HOURS WHICH LOOKS REASONABLE GIVEN CURRENT TRENDS SO HAVE KEPT VCSH FOR MOST EAST COAST SITES. VCTS PRESENT AFTER 14Z/15Z WITH SOME DAYTIME HEATING AS EAST COAST SEA BREEZE DEVELOPS WITH COVERAGE INCREASING AFTER 17Z. FOR APF...HAVE A DRY FORECAST THROUGH 17Z WITH VCTS AFTERWARDS WITH SEA BREEZE DEVELOPMENT. WILL HAVE TO WATCH FOR EARLIER GULF DEVELOPMENT STREAMING INTO COAST. /ALM && .MARINE... AN EAST WIND, BETWEEN 5 AND 10 KTS, TODAY ACROSS ALL SOUTH FLORIDA WATERS. THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS INTO NEXT WEEK. EXPECT A NORTH TO NORTHEAST SWELL OF AROUND 1 FT OVER THE NEXT COUPLE OF DAYS. WAVE HEIGHTS ARE FORECAST TO BE AROUND 3-4 FT IN THE ATLANTIC AND UP TO 1 FT IN THE GULF. WITH THE LIGHT WIND OUT OF THE WEST, AND SHOWERS AND STORMS OVER THE COASTAL WATERS, THERE WILL BE A SLIGHT CHANCE OF WATERSPOUTS AS WELL. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 88 75 88 76 / 60 50 60 40 FORT LAUDERDALE 88 76 89 77 / 60 50 60 40 MIAMI 88 77 90 77 / 70 50 60 40 NAPLES 89 74 90 76 / 50 30 50 30 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && SHORT TERM...13/SI LONG TERM....13/SI AVIATION...88/ALM
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 324 AM EDT THU SEP 24 2015 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 241900- 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- 324 AM EDT THU SEP 24 2015 ...SLOW MOVING STORMS WITH LOCALLY HEAVY RAINFALL POSSIBLE... ...A FEW STRONG STORMS WITH GUSTY WINDS THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED THUNDERSTORMS OVER THE ATLANTIC AND GULF WATERS THIS MORNING WILL MOVE ALONG THE COAST FROM SOUTH TO NORTH WITH COVERAGE EXPECTED TO INCREASE ACROSS SOUTH FLORIDA INTO THE AFTERNOON HOURS. THE MAIN THREATS FROM STORMS WILL BE FREQUENT CLOUD TO GROUND LIGHTNING STRIKES, LOCALLY HEAVY RAIN AND GUSTY WINDS. FLOODING: SLOW MOVING SHOWERS AND STORMS TODAY WILL PRODUCE VERY HEAVY RAINFALL. THIS WILL LEAD TO PONDING OF WATER ON ROADWAYS AND MINOR URBAN FLOODING ESPECIALLY IN VULNERABLE LOCATIONS. WIND: THE STRONGEST STORMS TODAY WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 45 TO 50 MPH. WATERSPOUTS: WATERSPOUTS ARE POSSIBLE OVER THE GULF, ATLANTIC WATERS AND BISCAYNE BAY IN ASSOCIATION WITH SHOWERS AND THUNDERSTORMS TODAY. RIP CURRENTS: NORTH-NORTHEASTERLY SWELL OVER THE ATLANTIC WILL LEAD TO A CONTINUING MODERATE RISK FOR RIP CURRENTS AT PALM BEACH...BROWARD...AND MIAMI-DADE BEACHES TODAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY AN UPPER LEVEL LOW OVER THE SOUTHEASTERN US WILL CONTINUE TO PUSH DEEP MOISTURE OVER SOUTH FLORIDA BRINGING SCATTERED TO NUMEROUS AFTERNOON AND EVENING STORMS INTO THE UPCOMING WEEKEND. LOCALLY HEAVY RAINFALL AND MINOR URBAN FLOODING WILL BE POSSIBLE WITH STORMS. THE RIP CURRENT RISK WILL REMAIN ELEVATED INTO FRIDAY ALONG THE ATLANTIC BEACHES DUE TO A NORTH-NORTHEASTERLY SWELL. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT FLOODING, HIGH WINDS OR DAMAGE, AND HAIL TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.
The national radar mosaic for the moment the first event began.
12 coastal flood. Local standard time, as filed.
Photos received via social media show flooding along 5th Avenue, Alton Road, Lenox Aveune, Washington Avenue, and Espanola Way in Miami Beach with the morning high tide.
Miami Beach PD reported the right lane of Collins Avenue in Miami Beach was flooded and impassable between 15th and 24th streets in Miami Beach. Additional reports via social media also reported flooding on Jefferson Avenue north of Lincoln Avenue with the morning high tide.
Emergency management photos show ponding of tidal waters at several spots in Naples, including 16th and 24th avenues south.
Tidal flooding with the evening high tide resulted in the closure of Indian Creek Drive (Southbound A1A) between 26th Street and 41st Street in Miami Beach. Road was opened around 1020pm after water receded. Additional emergency management reports were received of tidal flooding along 4300 North Bay Road in Miami Beach.
Tidal flooding along Himmarshee Canal in downtown Fort Lauderdale.
Water inundated portions of 500 block of NE 30 Street in Miami.
Water entered office at Marina Delray as a result of tidal flooding. Dock at private house also reported underwater at high tide along with portions of Marine Way along the west side of the Intracoastal waterway. Report from Palm Beach Post.
Boynton Beach officials reported that tidal flooding lead to 3 inches of water at Lake Drive and Potter Street along the intracoastal waterway at high tide.
Flooding in parking lot along Ocean Avenue in Lantana as well as along North Lake Drive.
Tidal flooding resulted in closure of Indian Creek Drive (A1A) at 21st Street around the time of morning high tide. Up to ankle deep water was reported in spots.
Tidal flooding lead to inundation of parking lots along the North Bay Causeway.
Flooding reported at Franklin Street and SR A1A during the morning high tide.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2015Every state in 2015This day in weather historyWarnings in Florida, September 2015
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: 598706, 598708, 598710, 598712, 601207, 601208, 598732, 598734, 601210, 598736, 598738, 598737.