A weak cold front over South Florida combined with an upper level shortwave moving east across the Florida peninsula caused strong to severe thunderstorms to develop over southern portions of southeast Florida during the afternoon hours.
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.
A weak cold front over South Florida combined with an upper level shortwave moving east across the Florida peninsula caused strong to severe thunderstorms to develop over southern portions of southeast Florida during the afternoon hours.
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 May 19, 1:26 PM EST, 1 hour 4 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
226 PM EDT SAT MAY 19 2007
.DISCUSSION...
A WEAK AND DIFFUSE FRONTAL BOUNDARY CONTINUES ACROSS SOUTH
FLORIDA...WITH A COLD FRONT EXTENDING FROM NEAR THE BAHAMAS
EASTWARD ACROSS THE WESTERN ATLANTIC TO THE LOW IN THE NEW ENGLAND
COASTAL REGIONS. A SURFACE RIDGE IS ACROSS THE SOUTHEAST U.S. AND
IS FORECAST TO DRIFT SOUTHEAST AND INCREASE THE PRESSURE GRADIENT
ACROSS THE WESTERN ATLANTIC AND THE FLORIDA PENINSULA...WITH
NORTHEASTERLY WINDS FORECAST FOR THE SOUTH FLORIDA PENINSULA AND
ADJACENT WATERS. REGIONAL SURFACE OBSERVATIONS INDICATE THAT THE
TRANSITION TO NORTHEASTERLY WINDS HAS BEGUN ACROSS THE
REGION...WITH WINDS IN THE 15 TO 20 KNOT RANGE FORECAST THROUGH
SUNDAY NIGHT ACROSS THE LOCAL ATLANTIC AND GULF OF MEXICO WATERS
BEGINNING TONIGHT...FOR MAINLY THE OFF SHORE WATERS.
AS THE AFOREMENTIONED FRONTAL BOUNDARY DRIFTS OFF TO THE EAST...THE
LOW LEVEL MOISTURE SUPPLY WILL BE SOMEWHAT LIMITED THEREAFTER AND
THE CHANCES OF SHOWERS AND THUNDERSTORMS ACROSS SOUTH FLORIDA WILL
BE ME MARGINAL FOR THE REMAINDER OF THE WEEKEND. THE UPPER
ATMOSPHERIC CONDITIONS AND LACK OF DYNAMICS ALSO DO NOT FAVOR ANY
SYNOPTIC SCALE PRECIP AND THE MAIN MECHANISM FOR SHOWERS WILL LIKELY
BE THE SEA BREEZE AND SEA BREEZE CONVERGENCE WITH MAINLY AFTERNOON
AND EVENING THUNDERSTORMS. BUT WITH THE MODERATE EASTERLIES
DOMINATING THE REGION...THE EAST AND WEST COAST SEA BREEZE
CONVERGENCE WILL BE MAINLY LATER IN THE AFTERNOON AND MAINLY CLOSER
TO THE WEST COASTAL ZONE.
THE LATEST GFS GUIDANCE CONTINUES TO GENERATE SPURIOUS LOWS ALONG
THE SOUTHEASTERN BAHAMAS...WHICH IN TURN AFFECTS THE GUIDANCE IN THE
VICINITY OF THE SOUTH FLORIDA PENINSULA. FOR EXAMPLE THE LOCAL
PRESSURE GRADIENT IS LIKELY TOO HIGH AND RESULTANT WIND SPEEDS TOO
HIGH AS WELL. BUT INSPECTION OF THE ENSEMBLE GUIDANCE ALSO SUGGESTS
THAT THE SURFACE RIDGE WILL START TO BUILD ACROSS THE WESTERN
ATLANTIC AND THE SURFACE WINDS WILL INCREASE ACROSS THE REGION. BUT
WITH THE CAVEAT THAT THE GUIDANCE MIGHT BE A FEW KNOTS TOO HIGH...SO
THE WINDS WERE BROUGHT DOWN A FEW KNOTS. THIS THEN BROUGHT DOWN THE
FORECAST SEAS FOR THE LOCAL ATLANTIC WATERS...BUT A SMALL CRAFT
ADVISORY STILL LOOKS NECESSARY FOR THIS EVENING AND TONIGHT AS THE
GULF STREAM AND OFF SHORE SEAS ARE FORECAST TO BUILD TO NEAR 7
FEET...MAYBE LOCALLY HIGHER IN ISOLATED AREAS.
&&
.AVIATION...
A WEAK COLD FRONT CONTINUES TO SLIDE SOUTHWARD ACROSS THE FORECAST
AREA THIS AFTERNOON. ISOLATED SHOWERS/THUNDERSTORMS HAVE DEVELOPED
ALONG THE PORTION OF THIS BOUNDARY OVER THE ATLANTIC WATERS...AND
ACROSS THE NORTHEAST PORTION OF THE MAINLAND WHERE ITS SOUTHWARD
MOVEMENT HAS ENHANCED CONVERGENCE ALONG THE ATLANTIC COAST SEA
BREEZE BOUNDARY. WILL LEAVE VCTS/CB IN FOR ALL EAST COAST TERMINALS
THROUGH 20/01Z...WITH MODELS IN GOOD AGREEMENT THAT THE CONVECTIVE
THREAT WILL SHIFT OFFSHORE THE ATLANTIC COAST THIS EVENING. EXPECT
TO SEE A FAIRLY BROAD AREA OF COLD AIR STRATOCU DEVELOP OVER THE
ATLANTIC THIS EVENING...AND MOVE INLAND TO AFFECT MAINLY THE EAST
COAST TERMINALS OVERNIGHT. ALTHOUGH HIGH-END IFR CIGS ARE POSSIBLE
AROUND DAWN...WILL ONLY CARRY MVFR AT THIS TIME. STREAMER SHOWERS
WILL LIKELY RETURN TO THE EAST COAST TERMINALS ON SUNDAY MORNING...
WITH GUSTY EAST-NORTHEAST FLOW OF 15-20 KNOTS THROUGHOUT THE
FORECAST PERIOD. 70/DD
&&
.MARINE...
A SMALL CRAFT ADVISORY STILL IS IN EFFECT FOR THIS EVENING AND
TONIGHT AS THE GULF STREAM AND OFF SHORE SEAS ARE FORECAST TO
BUILD TO NEAR 7 FEET...MAYBE LOCALLY HIGHER IN ISOLATED AREAS. ALSO
SEE DISCUSSION ABOVE. AS THE SURFACE RIDGE AND WINDS INCREASE...THE
POTENTIAL FOR RIP CURRENTS ACROSS THE EAST COAST ATLANTIC BEACHES
WILL INCREASE THE REMAINDER OF THE WEEKEND INTO EARLY NEXT WEEK.
&&
.FIRE WEATHER...
NO FIRE WEATHER CONCERNS.
&&
.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH 83 74 82 73 / 50 40 30 30
FORT LAUDERDALE 84 74 83 73 / 50 40 30 30
MIAMI 85 74 84 73 / 50 40 30 30
NAPLES 87 67 86 70 / 40 30 30 20
&&
.MFL WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 7 AM EDT SUNDAY
FOR AMZ650-AMZ651-AMZ670-AMZ671.
GM...NONE.
&&
LONG TERM...70/DD
SHORT TERM/AVIATION...60/BDHAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 625 AM EDT SAT MAY 19 2007 FLZ063-066>075-192230- GLADES-HENDRY-PALM BEACH WESTERN-PALM BEACH EASTERN- WESTERN COLLIER-EASTERN COLLIER-WESTERN BROWARD- BROWARD METROPOLITAN-WESTERN DADE-DADE METROPOLITAN- MAINLAND MONROE- 625 AM EDT SAT MAY 19 2007 ...CHANCE OF THUNDERSTORMS FOR ALL OF SOUTH FLORIDA TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF SOUTH FLORIDA TODAY...AS A WEAK COLD FRONT APPROACHES THE REGION AND AN UPPER LEVEL DISTURBANCE PASSES OVERHEAD. CLOUD TO GROUND LIGHTNING STRIKES WILL BE THE PRIMARY THREAT...BUT THE STRONGEST STORMS WILL ALSO BE CAPABLE OF PRODUCING WIND GUSTS TO 35 MPH...SMALL HAIL...AND TORRENTIAL DOWNPOURS. WAVES: NORTHEAST WINDS WILL INCREASE TO NEAR 20 KNOTS ACROSS ALL OF THE SOUTH FLORIDA COASTAL WATERS BY LATE THIS AFTERNOON. THIS WILL RESULT IN GULF STREAM SEAS BUILDING INTO THE 6 TO 8 FOOT RANGE BY THIS EVENING...AND INTO THE 7 TO 9 FOOT RANGE BY SUNDAY MORNING. A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE ATLANTIC COASTAL WATERS FOR THIS REASON. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS THROUGHOUT THE UPCOMING WEEK FOR MOST OF SOUTH FLORIDA. ORGANIZED SEVERE THUNDERSTORMS ARE NOT ANTICIPATED AT THIS TIME. OTHERWISE...EAST TO NORTHEAST WINDS OVER THE SOUTH FLORIDA COASTAL WATERS WILL CONTINUE IN THE 15 TO 20 KNOT RANGE THROUGH THE MIDDLE OF NEXT WEEK...WITH SEAS IN THE GULF STREAM REMAINING HIGH THROUGH THIS TIME. STRENGTHENING EASTERLY WINDS WILL ALSO RESULT IN AN ELEVATED THREAT FOR RIP CURRENTS ALONG THE ATLANTIC COAST BEACHES NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH SUNDAY MORNING. 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 241 PM EDT SAT MAY 19 2007 FLZ071-072-074-191915- WESTERN BROWARD FL-BROWARD METROPOLITAN FL-DADE METROPOLITAN FL- 241 PM EDT SAT MAY 19 2007 AT 236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR INTERSECTION I-75 AND U.S. 27...OR 8 MILES WEST OF DAVIE...MOVING SOUTH AT 5 TO 10 MPH. EXPECT FREQUENT LIGHTNING...GUSTY WINDS TO 45 MPH...PEA-SIZED HAIL... AND TORRENTIAL DOWNPOURS. A WARNING WILL BE ISSUED IF THIS THUNDERSTORM ACTIVITY STRENGTHENS. RESIDENTS NEAR THE PATH OF THIS STORM SHOULD REMAIN ALERT FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. 70/DD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 312 PM EDT SAT MAY 19 2007 FLZ071>074-191945- WESTERN BROWARD FL-WESTERN DADE FL-BROWARD METROPOLITAN FL- DADE METROPOLITAN FL- 312 PM EDT SAT MAY 19 2007 AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR THE INTERSECTION OF U.S. 27 PINES BLVD...OR 6 MILES WEST OF MIRAMAR...MOVING SOUTHWESTWARD AROUND 10 TO 15 MPH. EXPECT FREQUENT LIGHTNING...GUSTY WINDS TO 50 MPH...PEA-SIZED HAIL... AND TORRENTIAL DOWNPOURS. A WARNING WILL BE ISSUED IF THIS THUNDERSTORM ACTIVITY STRENGTHENS. RESIDENTS NEAR THE PATH OF THIS STORM SHOULD REMAIN ALERT FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. 70/DD
The Miami radar (KAMX), 43 km away, was scanning. The volume nearest the first event began at 19:30 UTC.
3 hail, 1 lightning. Local standard time, as filed.
Lightning struck and killed a 24-year old man who was laying tile on the roof of a home in western sections of Miramar. The force of the lightning knocked out a second worker, but he regained consciousness and did not require further medical attention.
Hail reported near the intersection of NW 67 Avenue and Miami Lakes Drive.
Funnel clouds also reported.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Lightning, Broward | 2007-05-19 | 24 | Male | Long Span Roof | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2007Every state in 2007This day in weather historyWarnings in Florida, May 2007
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: 34734, 34736, 34737, 34739.