Scattered showers and storms developed in a moist and unstable atmosphere over South Florida during the afternoon.
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.
Scattered showers and storms developed in a moist and unstable atmosphere over South Florida during the afternoon.
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 Aug 15, 12:38 PM EST, 1 hour 22 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 138 PM EDT SAT AUG 15 2015 .AVIATION... SHOWERS AND THUNDERSTORMS FINALLY DISSIPATING ACROSS SOUTH EAST FLORIDA, WITH SOME ISOLATED CELLS LEFT, MAINLY AROUND KPBI AND KTMB. SO, HAVE LEFT VCTS IN THOSE TAFS FOR NOW. CONVECTION HAS FIRED UP ALONG THE GULF COAST AND WILL IMPACT KAPF THIS AFTERNOON. SOME OF THE STORMS MAY BE STRONG AT TIMES. OTHERWISE, VFR CONDITIONS ACROSS SOUTH FLORIDA, WITH THE EXCEPTION OF BRIEF IFR UNDER HEAVY SHOWERS AND THUNDERSTORMS. && PREV DISCUSSION... /ISSUED 422 AM EDT SAT AUG 15 2015/ DISCUSSION... EARLY MORNING RADAR IMAGERY SHOWS ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS MAINLY ACROSS THE ATLANTIC AND GULF WATERS MUCH LIKE YESTERDAY MORNING. MODEL SOUNDING ANALYSIS ALSO DEPICTS FAIRLY SIMILAR CONVECTIVE PARAMETERS TODAY AS WAS SEEN YESTERDAY. ONE EXCEPTION IS THE OVERALL STORM MOTION WHICH IS EXPECTED TO NOT BE AS LIGHT TODAY AS YESTERDAY...CONTRIBUTED BY A DEEPER SOUTHEASTERLY TO SOUTHERLY FLOW REGIME. OPERATIONAL MODELS AND SHORT TERM HI-RES GUIDANCE SUGGEST CONVECTION TO BE MAINLY FOCUSED JUST WEST OF THE EAST COAST METRO AREAS WESTWARD TO THE GULF COAST. THIS EVOLUTION WILL BE FACILITATED BY THE DEEPER SOUTHEAST FLOW ALONG WITH STRONGER RIDGING ACROSS THE WESTERN ATLANTIC. A FEW STRONG STORMS COULD STILL BE POSSIBLE WITH THE MAIN THREATS BEING FREQUENT LIGHTNING AND GUSTY WINDS. MODELS CONTINUE TO PERPETUATE THE DEEP SOUTHEASTERLY FLOW PATTERN THROUGH THE WEEKEND AND VIRTUALLY ALL OF THE UPCOMING WEEK. H5 RIDGE ACROSS THE WESTERN ATLANTIC WILL GRADUALLY SLIDE BACK TO THE WEST OVER SOUTH FLORIDA AND THE EASTERN GULF OF MEXICO AS LOWER H5 HEIGHTS REMAIN ACROSS THE SOUTHEASTERN CONUS. THIS WILL KEEP A FAIRLY CONSISTENT INTERIOR/GULF COAST FOCUSED CONVECTIVE REGIME EACH DAY. THE LATEST GFS SOLUTION DEPICTS STRONGER RIDGING THROUGH NEXT WEEK THAN IN PREVIOUS RUNS. THIS IS MORE IN LINE WITH THE MORE CONSISTENT ECMWF SOLUTION. MARINE... EAST TO SOUTHEASTERLY WINDS ARE EXPECTED TO INCREASE LATE IN THE WEEKEND AND INTO NEXT WEEK AS RIDGING BUILDS ACROSS THE WATERS. CHANCES FOR SHOWERS AND THUNDERSTORMS WILL PERSIST EACH DAY WITH THE BEST CHANCES ACROSS LAKE OKEECHOBEE. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 80 91 79 91 / 30 60 30 50 FORT LAUDERDALE 80 90 80 90 / 30 50 40 40 MIAMI 78 90 79 90 / 30 40 30 40 NAPLES 76 91 75 92 / 30 50 30 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && SHORT TERM...10/CD LONG TERM....10/CD AVIATION...13/SI
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 1049 AM EDT SAT AUG 15 2015 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 160300- 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- 1049 AM EDT SAT AUG 15 2015 ...STORMS LIKELY ACROSS SOUTH FLORIDA TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED SHOWERS AND THUNDERSTORMS WILL IMPACT SOUTH FLORIDA DURING THE LATE MORNING HOURS AND INTO THE AFTERNOON WITH NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOPING MAINLY ACROSS INTERIOR SOUTH FLORIDA DURING THE AFTERNOON AND INTO THE EARLY EVENING. SOME OF THE THE AFTERNOON AND EVENING ACTIVITY IS MORE LIKELY TO IMPACT SOUTHWEST FLORIDA THAN SOUTHEAST FLORIDA. MAIN CONCERNS WITH STORMS TODAY WILL BE FREQUENT TO NUMEROUS LIGHTNING STRIKES, STRONG WINDS, AND LOCALLY HEAVY RAINFALL. MOST ACTIVITY IS FORECAST TO WIND DOWN DURING THE EVENING PARTICULARLY ACROSS THE MAINLAND WITH SOME LINGERING ACTIVITY OVERNIGHT ACROSS THE ADJACENT COASTAL WATERS OF THE ATLANTIC AND GULF. WIND: THE STRONGEST STORMS TODAY WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 45-55 MPH MAINLY ACROSS THE INTERIOR AND LAKE OKEECHOBEE REGION. FLOODING: THERE IS THE POTENTIAL FOR SOME STREET/ROAD FLOODING MAINLY ACROSS LOW LYING AREAS OF INTERIOR SOUTH FLORIDA AND MAY BE PORTIONS OF THE SOUTHWEST FLORIDA COAST. NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS ARE LIKELY EACH AFTERNOON, ESPECIALLY OVER SOUTH FLORIDA'S INTERIOR. CLOUD TO GROUND LIGHTNING WILL BE THE PRIMARY THREAT, BUT GUSTY WINDS, AND LOCALIZED FLOODING ARE ALSO POSSIBLE. NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. HOWEVER INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT HIGH WIND, HAIL AND FLOODING 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.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
226 PM EDT SAT AUG 15 2015
FLZ069-070-151900-
COASTAL COLLIER COUNTY FL-INLAND COLLIER COUNTY FL-
226 PM EDT SAT AUG 15 2015
...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
AND 45 TO 55 MPH WINDS FOR NORTHWESTERN COLLIER COUNTY UNTIL 300 PM
EDT...
* AT 225 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR BONITA SPRINGS TO
NEAR EAST NAPLES...AND MOVING NORTHWEST AT 15 MPH.
* THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND
GUSTY WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER
RELATED KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO
PROTECTION. THESE WINDS CAN DOWN SMALL TREE LIMBS AND BRANCHES...
AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE
BUILDING UNTIL THE STORM PASSES.
* LOCATIONS IMPACTED INCLUDE...
NAPLES...GOLDEN GATE ESTATES...VINEYARDS...GOLDEN GATE...NAPLES
PARK...EAST NAPLES...NORTH NAPLES...ORANGETREE...QUAIL CREEK
ESTATE...PELICAN BAY AND CORKSCREW SWAMP SANCTUARY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RESIDENTS SHOULD REMAIN ON THE ALERT FOR ADDITIONAL STATEMENTS AND
POSSIBLE WARNINGS.
&&
LAT...LON 2633 8182 2632 8182 2632 8166 2642 8166
2642 8158 2640 8154 2611 8167 2611 8178
2614 8179 2613 8180 2611 8179 2612 8180
2629 8183 2629 8182 2630 8183 2633 8185
TIME...MOT...LOC 1825Z 129DEG 12KT 2632 8174 2612 8173
GREGORIAThe Miami radar (KAMX), 149 km away, was scanning. The volume nearest the first event began at 18:58 UTC.
1 lightning. Local standard time, as filed.
Tour boat captain was struck by lightning on deck of vessel while returning back from Gulf of Mexico through Gordon Pass during stormy weather. Boat captain sustained minor injuries and was held overnight at hospital for monitoring.
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, August 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: 595896.