S. produced scattered afternoon thunderstorms across South 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.
An upper level low pressure area off the North Florida coast and a broad upper trough moving into the eastern U.S. produced scattered afternoon thunderstorms across South 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 7, 6:27 AM EST, 5 hours 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 727 AM EDT FRI SEP 7 2012 .AVIATION... LITTLE CHANGE IN THE 12Z TAFS. A LIGHT SOUTHERLY TO SOUTH SOUTHWESTERLY FLOW IS EXPECTED ACROSS THE REGION. BUT BOTH THE EAST AND WEST COAST SEA BREEZES SHOULD FORM IN THE LATE MORNING AND EARLY AFTERNOON. ALTHOUGH THE UPPER LEVEL LOW FROM PREVIOUS DAYS IS EXPECTED TO START RETREATING TO THE EAST...IT SHOULD STILL RESULT IN A CHANCE OF A FEW STRONG THUNDERSTORMS LATER THIS AFTERNOON. MAINLY VFR CONDITIONS ARE EXPECTED THROUGH LATE MORNING THEN WITH SHOWERS AND/OR THUNDERSTORMS IN THE AFTERNOON BRIEF PERIODS OF SUB-VFR TO IFR CONDITIONS MAY BE POSSIBLE ALL TAF SITES. && .PREV DISCUSSION... /ISSUED 350 AM EDT FRI SEP 7 2012/ ..WILL AFFECT PRIMARILY THE INTERIOR AND E COAST. SOME OF THE THUN -DERSTORMS STILL COULD BECOME STRONG WITH FREQUENT LIGHTNING... LOCALLY HEAVY RAIN AND STRONG GUSTY WINDS. LONG TERM...MONDAY THROUGH THURSDAY...SOUTHWESTERLY WINDS INCREASE PULLING SOME DEEPER MOISTURE TOWARDS FLA WHICH WILL INCH UPWARDS THE CHANCES OF RAIN MONDAY AND TUESDAY. THE INTERIOR AND E AGAIN WILL BE AFFECTED THE MOST. THE FRONT APPEARS TO REACH THE LAKE OKEECHOBEE REGION LATE MONDAY AND MAY MOVE THROUGH THE S PORTIONS OF THE AREA DURING THE DAY TUESDAY WITH A DEEP NORTHEASTERLY WIND FLOW DEVELOP -ING WEDNESDAY INTO THURSDAY WITH DRIER CONDITIONS...AND...WITH ANY DIURNAL CONVECTION AFFECTING THE INTERIOR AND W. NO REAL TEMPERATURE COOL OFF EXPECTED EXCEPT THE WIND FLOW OFF OF THE ATLC WILL GIVE THE EASTERN AREAS SOME MINOR RELIEF BUT WARMER TEMPERATURES WILL OCCUR IN THE W. MARINE...THOUGH LESLIE ESSENTIALLY STALLED...A SMALL NORTHEASTERLY SWELL GENERATED BY THIS SYSTEM MOVING INTO THE PALM BEACH WATERS WHICH MAY SPREAD SOUTHWARD THROUGH THE WEEKEND. 'TIL LESLIE GETS MOVING NORTHWARD THIS WILL PERSIST POSSIBLY INTO EARLY NEXT WEEK BEFORE SWELLS BECOME GREATER THAN 2 FEET IN THE PALM BEACH WATERS. COMBINED WITH FAVORABLE LOW TIDES...THE SWELL WILL LEAD TO AN INCREASED RISK OF RIP CURRENTS ALONG THE ATLC BEACHES. TODAY AND THROUGH THE WEEKEND...WINDS GENERALLY LESS THAN 15 KNOTS WITH SEAS 3 FEET OR LESS. BUT SEAS INCREASE IN THE ATLC WATERS OFF OF PALM BEACH EARLY NEXT WEEK. BEFORE THE FRONT...THE SOUTHWESTERLY WINDS MAY LEAD TO SOME RIP CURRENT RISK AT THE W COAST BEACHES AS WELL OVER THE WEEKEND. FIRE WEATHER...NO CONCERNS AT THIS TIME. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 89 74 90 76 / 30 20 30 20 FORT LAUDERDALE 88 77 90 79 / 20 20 30 20 MIAMI 89 76 90 78 / 20 20 20 20 NAPLES 89 74 89 76 / 20 20 20 20 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && DISCUSSION/MARINE/FIRE...15/JR AVIATION/RADAR...60/BD
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 439 AM EDT FRI SEP 7 2012 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 072345- 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- 439 AM EDT FRI SEP 7 2012 ...FLOOD WARNING EAST CENTRAL PALM BEACH COUNTY CONTINUES... ...A FEW STRONG THUNDERSTORMS POSSIBLE THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED MAINLY IN THE AFTERNOON ACROSS THE SOUTH FLORIDA PENINSULA. THE MAIN IMPACT FROM THESE STORMS WILL BE LOCALLY HEAVY RAINFALL, FREQUENT LIGHTNING STRIKES AND POSSIBLE HAIL. WATERSPOUTS: THE COMBINATION OF CLOUD CONVERGENCE BANDS AND A FAVORABLE LOW LEVEL WIND PROFILE ACROSS THE GULF AND ATLANTIC WATERS WILL RESULT IN A RISK OF WATERSPOUTS. WIND: WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THE STRONGEST STORMS. HAIL: SMALL HAIL IS POSSIBLE WITH THE STRONGEST STORMS. FLOODING: ALTHOUGH AREAS HAVE IMPROVED OVER THE PAST FEW DAYS FLOODING CONTINUES ACROSS PORTIONS OF EAST CENTRAL PALM BEACH COUNTY WITH SOME ROADS STILL IMPASSABLE DUE TO STANDING WATERS. THE FLOOD WARNING REMAINS IN EFFECT FOR THESE AREAS. TEMPERATURES: THE HEAT INDEX COULD REACH NEAR ONE HUNDRED DEGREES ACROSS THE INTERIOR PORTIONS OF THE PENINSULA TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SCATTERED AFTERNOON THUNDERSTORMS AFFECTING THE PENINSULA CAN BE EXPECTED. LATE IN THE WEEKEND WESTERLY WINDS ARE FORECAST TO INCREASE ACROSS THE GULF WATERS WITH AN INCREASING RISK OF RIP CURRENTS ALONG THE GULF COAST BEACHES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION: WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, 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.
The Miami radar (KAMX), 38 km away, was scanning. The volume nearest the first event began at 17:08 UTC.
1 hail, 1 thunderstorm wind. Local standard time, as filed.
A member of the public reported nickel-sized hail and a downed Ficus tree near the Palmetto Expressway/State Route 826 and LeJuene/Northwest 42nd Avenue.
The roof of an outer building on the campus of Plantation High School was partially peeled off. Approximately 150 square feet of roof covering material was on the ground. Water entered the building, but no structural damage was noted to the steel joists. A few small trees were uprooted.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2012Every state in 2012This day in weather historyWarnings in Florida, September 2012
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: 413193, 414340.