Typical summer humidity and instability led to numerous evening thunderstorms and lightning across southeast Florida.
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.
Typical summer humidity and instability led to numerous evening thunderstorms and lightning across southeast Florida.
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 6, 1:12 PM EST, 3 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 212 PM EDT MON SEP 6 2010 .DISCUSSION...A WEAK SURFACE RIDGE OVER THE NORTHERN SECTIONS OF THE AREA WILL CONTINUE TO MOVE NORTH. GENERALLY EAST FLOW WILL DEEPEN IN TIME AND BY TOMORROW, MOST CONVECTION SHOULD START TO BE MAINLY ON THE WEST SIDE OF SOUTH FLORIDA. CAN'T RULE OUT NOCTURNAL EAST COAST SHOWERS OR STORMS THOUGH, BUT CHANCES WILL NOT BE QUITE THAT HIGH WITH POPS 20-30 PERCENT. HIGHEST POPS OVER THE WESTERN SECTIONS OF SOUTH FLORIDA WILL BE 50 PERCENT AT BEST. WITH THE LOW LEVEL RIDGE TO THE NORTH, MINOR WEAK TROUGHS WILL PASS THROUGH FROM TIME TO TIME FROM THE EAST BUT TIMING IS RATHER DIFFICULT. EACH TROUGH MAY ENHANCE THE INTENSITY OF THE STORMS. BY THE END OF THE WEEK AND WEEKEND, A DEEP LAYER LARGE AMPLITUDE RIDGE IS EXPECTED TO BUILD ACROSS THE SRN U.S./GULF OF MEXICO. THIS WILL RESULT IN INCREASING SUBSIDENCE OVER THE LOCAL AREA WITH A BIT OF A REDUCTION IN POPS. HOWEVER...THE LOW LEVEL ATLANTIC RIDGE WILL STILL RESULT IN A LOW LEVEL EASTERLY FLOW AND THIS WILL BE ENOUGH TO ADVECT MOISTURE WESTWARD OVER SOUTH FLORIDA. && .MARINE...AS THE RIDGE CONTINUES TO MOVE NORTH, SURFACE WINDS WILL BE OUT OF THE EAST OR SOUTHEAST. THIS FLOW WILL PREVAIL WITH WIND SPEEDS AT OR BELOW 15 KTS THROUGH THE REST OF THE FORECAST PERIOD. LIKEWISE...SEAS SHOULD REMAIN AT 4 FEET OR LESS. && .FIRE WEATHER...NO PROBLEMS EXPECTED. MINIMUM RH VALUES SHOULD REMAIN WELL ABOVE 35 PERCENT. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 76 89 77 89 / 30 40 30 30 FORT LAUDERDALE 77 90 79 90 / 30 30 20 30 MIAMI 77 90 78 90 / 30 30 20 30 NAPLES 75 92 76 92 / 30 50 30 40 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && LONG TERM...18/GR SHORT TERM/AVIATION...70/DD
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 1143 AM EDT MON SEP 6 2010 FLZ063-066>075-168-172>174-070930- 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- 1143 AM EDT MON SEP 6 2010 ...NUMEROUS THUNDERSTORMS INTERIOR TODAY... ...SLIGHT RISK OF FLOODING ENTIRE MAINLAND... ...HEAT INDICES APPROACHING 110 DEGREES WESTERN INTERIOR... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS: NUMEROUS THUNDERSTORMS ARE ANTICIPATED TODAY ACROSS NORTHERN INTERIOR SECTIONS OF SOUTH FLORIDA, GENERALLY IN THE REGION SURROUNDING LAKE OKEECHOBEE. SCATTERED THUNDERSTORMS ARE EXPECTED ELSEWHERE. FREQUENT CLOUD TO SURFACE LIGHTNING STRIKES AND TORRENTIAL DOWNPOURS WILL OCCUR WITH THIS ACTIVITY. FLOODING: SLOW STORM MOTIONS TODAY WILL RESULT IN LOCALLY HEAVY RAINFALL, WITH MINOR FLOODING OF LOW LYING AND OTHER POOR DRAINAGE AREAS POSSIBLE. TEMPERATURES: AFTERNOON HEAT INDEX READINGS WILL APPROACH 110 DEGREES ACROSS PORTIONS OF INTERIOR COLLIER, HENDRY, AND MAINLAND MONROE COUNTIES TODAY. HEAT INDICES ACROSS THE REMAINDER OF THE AREA WILL GENERALLY BE BETWEEN 100 AND 105 DEGREES. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SCATTERED THUNDERSTORMS WILL CONTINUE TO AFFECT SOUTH FLORIDA INTO NEXT WEEKEND. THE PRIMARY IMPACTS FROM THE STORMS WILL BE LIGHTNING STRIKES, GUSTY WINDS, AND LOCALLY HEAVY RAINFALL. OTHERWISE, HEAT INDICES WILL BE IN THE 100 TO 105 DEGREE RANGE ACROSS MOST OF MAINLAND SOUTH FLORIDA EACH AFTERNOON. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED. HOWEVER, INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT 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. 70/DD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 429 PM EDT MON SEP 6 2010 FLZ069-070-062130- COASTAL COLLIER COUNTY FL-INLAND COLLIER COUNTY FL- 429 PM EDT MON SEP 6 2010 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR MUCH OF CENTRAL COLLIER COUNTY... ...FOR FREQUENT TO EXCESSIVE LIGHTNING...BRIEF GUSTY WINDS TO 45 MPH... AT 427 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED A STRONG THUNDERSTORM 5 MILES WEST OF BIG CYPRESS NATIONAL PRESERVE...MOVING WEST NEAR 10 MPH. THIS STORM WILL AFFECT... BIG CYPRESS ACCESS AREAS OFF ALLIGATOR ALLEY... INTERSECTION ALLIGATOR ALLEY AND SR 839... OCHOPEE... JEROME... CARNESTOWN... FAKAHATCHEE STRAND STATE PRESERVE... AND SURROUNDING COMMUNITIES. FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS TO 45 MPH...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. 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. LAT...LON 2624 8143 2613 8101 2592 8106 2586 8143 TIME...MOT...LOC 2027Z 090DEG 12KT 2601 8117 BETTWY
The Miami radar (KAMX), 50 km away, was scanning. The volume nearest the first event began at 21:59 UTC.
1 lightning. Local standard time, as filed.
Lightning struck a house during Labor Day festivities in Southwest Ranches. Tiles were blown from the roof and a fire was started on the roof as well. The fire was extinguished and no other damages were known.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2010Every state in 2010This day in weather historyWarnings in Florida, September 2010
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: 259383.