Moist southeast flow across south Florida led to the development of afternoon and evening thunderstorms over the interior and western parts of the peninsula.
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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.
Moist southeast flow across south Florida led to the development of afternoon and evening thunderstorms over the interior and western parts of the peninsula.
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 26, 1:35 PM EST, 55 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 235 PM EDT SUN SEP 26 2010 .DISCUSSION...MID LVL CONVERGENCE IS ONGOING ACROSS S FL THIS AFTERNOON BETWEEN THE NOSE OF THE MID LVL RIDGE TO THE EAST AND THE TROF ACROSS THE MS VALLEY AND NORTHERN GULF. AT THE SURFACE... S FL REMAINS BETWEEN A RIDGE OVER THE ATLANTIC TO THE NE AND BROAD LOW PRESSURE OVER CENTRAL AMERICA... DRIVING THE SE FLOW. THIS PATTERN WILL KEEP RAIN CHANCES FOR THE EAST COAST FAIRLY LOW THROUGH THE EVENING AND CONCENTRATE WHAT CONVECTION WILL DEVELOP ACROSS THE WEST COAST AND INTERIOR. CONVECTION WILL LIKELY REMAIN MOSTLY IN SHOWER FORM WITH THUNDERSTORMS MORE ISOLD. RAIN CHANCES WILL INCREASE SLIGHTLY ALONG THE ATLANTIC SHORE TOWARD MORNING AS NOCTURNAL SHRA AND POSSIBLY A TSRA OR TWO MOVE INTO THE EAST COAST METRO ON THE SE FLOW. MONDAY THROUGH TUESDAY THE TROF OVER THE NORTHERN GULF AND MS VALLEY WILL SHIFT EAST IN TANDEM WITH THE RIDGE OVER THE ATLANTIC AND THEN PROGRESSION EAST WILL HALT. THIS WILL ALSO ALLOW A FRONTAL BOUNDARY TO MOVE INTO NORTH OR PERHAPS CENTRAL FL AND STALL AS WELL. RAIN CHANCES WILL GRADUALLY INCREASE DURING THE PERIOD AS THE MID LVL RIDGE LOSES ITS HOLD ON THE AREA. WEDNESDAY THROUGH THE END OF THE WEEK... THINGS GET WET AS THE FLOW FROM THE MID TO HIGH LVLS TURN SW AND LIFT DEEP TROPICAL MOISTURE OUT OF THE NW CARIBBEAN AND ACROSS S FL. REGARDLESS OF TROPICAL CYCLONE DEVELOPMENT, HEAVY RAIN AND POTENTIAL FLOODING IS A CONCERN AND POPS WILL LIKELY BE GREATLY UPPED IN THE SHIFTS TO COME. && .AVIATION...IT APPEARS THAT GREATEST COVERAGE OF SHRA/TSRA FOR REMAINDER OF THE AFTERNOON WILL BE ACROSS THE INTERIOR AND GULF COAST...IN PREVAILING SOUTHEASTERLY LOW-LEVEL FLOW. WILL CONTINUE TO MENTION VCTS/CB AT APF...AND ONLY INCLUDE CB REMARK AT EAST COAST TERMINALS. SE LOW-LEVEL WINDS WILL STRENGTHEN OVERNIGHT AS SURFACE LOW DEVELOPS OVER THE SOUTHEASTERN U.S. AND THIS MAY LEAD TO MORE NOCTURNAL SHRA/TSRA ACTIVITY OVER THE ATLANTIC WATERS AND ADJACENT TERMINALS. MODERATE TO STRONG SSE FLOW TOMORROW WILL LIMIT TSRA THREAT TO TERMINALS NORTH/WEST OF MIAMI-DADE. ALTHOUGH ANY PASSING SHRA/TSRA WILL BE CAPABLE OF PRODUCING MVFR CIG/IFR VSBY... PREVAILING CONDITIONS WILL BE VFR...WITH LOWEST CIGS RANGING FROM 3.5-5 KFT. ESE SURFACE WINDS WILL VEER TO SSE BY END OF PERIOD ALONG THE ATLANTIC COAST...WITH SPEEDS INCREASING TO 14G22 KNOTS AFTER 27/14Z. SEA BREEZE WILL PROVIDE SSW WINDS AT APF THIS AFTERNOON...WITH A SIMILAR SE FLOW PATTERN EXPECTED THEREAFTER. 70/DD && .MARINE...THE PRESSURE GRADIENT BETWEEN THE HIGH TO THE NORTHEAST AND THE DEVELOPING LOW TO THE SOUTH WILL GRADUALLY TIGHTEN OVER THE NEXT FEW DAYS WITH WINDS AND SEAS INCREASING AS WELL... HOWEVER WINDS ARE NOT EXPECTED TO APPROACH 20 KTS UNTIL MID WEEK. LATE IN THE WEEK AN AREA OF LOW PRESSURE MAY MOVE ACROSS THE REGION WITH HIGHER WINDS AND SEAS EXPECTED TO LAST INTO THE WEEKEND. && .FIRE WEATHER...NO PROBLEMS OR CONCERNS. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 77 89 77 88 / 20 30 30 50 FORT LAUDERDALE 79 89 78 87 / 20 30 40 50 MIAMI 78 89 77 88 / 20 30 30 50 NAPLES 76 91 76 88 / 20 40 30 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && LONG TERM...04/AT SHORT TERM/AVIATION...70/DD
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 243 PM EDT SUN SEP 26 2010 FLZ063-066>075-168-172>174-270930- 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- 243 PM EDT SUN SEP 26 2010 ...ISOLATED THUNDERSTORMS EXPECTED THIS AFTERNOON/EVENING... ...SLIGHT RISK OF RIP CURRENTS ATLANTIC COAST BEACHES... ...WIDESPREAD/TORRENTIAL RAINFALL WITH FLOODING POSSIBLE MID-WEEK... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT RIP CURRENTS: A SOUTHEAST WIND OF 10 TO 15 MPH WILL LEAD TO A SLIGHT RISK OF RIP CURRENTS ALONG THE SOUTHEAST ATLANTIC COAST THROUGH TONIGHT. THUNDERSTORMS: THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS ALL OF SOUTH FLORIDA AND THE ADJACENT COASTAL WATERS TODAY, WITH THE THREAT FOR STORMS BECOMING FOCUSED OVER THE COASTAL WATERS AND EASTERN PORTION OF THE PENINSULA OVERNIGHT. CLOUD TO SURFACE LIGHTNING STRIKES AND WIND GUSTS TO 30 MPH WILL BE POSSIBLE WITH THIS ACTIVITY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY DETERIORATING WEATHER CONDITIONS ARE EXPECTED ACROSS SOUTH FLORIDA BEGINNING AROUND THE MIDDLE OF THE WEEK, AS RICH TROPICAL MOISTURE BEGINS TO SPREAD NORTHWARD FROM THE WESTERN CARIBBEAN SEA. THE POTENTIAL EXISTS FOR WIDESPREAD TORRENTIAL RAINFALL ACROSS SOUTH FLORIDA FOR SEVERAL CONSECUTIVE DAYS, BEGINNING ON WEDNESDAY AND PERSISTING THROUGH THE END OF THE WEEK. ALTHOUGH THERE IS SUBSTANTIAL UNCERTAINTY REGARDING THE TIMING OF THE HEAVIEST RAINFALL, IT DOES APPEAR THAT AN ELEVATED THREAT FOR FLOODING WILL EXIST ACROSS MUCH OF THE AREA DURING THIS PERIOD. IN ADDITION TO THE THREAT FOR HEAVY RAINFALL, WINDS ARE EXPECTED TO INCREASE OVER THE LOCAL WATERS, LEADING TO A HIGH THREAT FOR RIP CURRENTS ALONG COASTAL AREAS, AS WELL AS VERY ROUGH AND HAZARDOUS CONDITIONS FOR MARINERS ON THE LOCAL WATERS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI. 70/DD
The Miami radar (KAMX), 156 km away, was scanning. The volume nearest the first event began at 19:28 UTC.
1 lightning. Local standard time, as filed.
Lightning struck a house and started a fire near the main entry on Saddle Brook Lane in North Naples. North Naples Fire Rescue responded and had the fire extinguished with in 30 minutes.
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: 259402.