A surface trough of low pressure extending across South Florida from Tropical Depression Dorian produced scattered afternoon thunderstorms.
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 surface trough of low pressure extending across South Florida from Tropical Depression Dorian produced scattered afternoon thunderstorms.
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 3, 8:59 AM EST, 3 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 959 AM EDT SAT AUG 3 2013 .UPDATE... MADE SOME EARLIER MINOR ADJUSTMENTS BASED ON CURRENT TRENDS, BUT CURRENT THINKING HAS NOT CHANGED WITH CONVECTION STILL EXPECTED BY THIS AFTERNOON. ALREADY HAVE HAD SOME ISOLATED THUNDER MOVE ONTO THE SOUTHWEST COAST WITH THE 12Z MFL SOUNDING INDICATING A SOUTHWEST STEERING FLOW WHICH CAME BE NO SURPRISE WITH FORECAST SOUNDING HAVING SHOWN THAT ALSO. AS WAS THE CASE YESTERDAY, THE ONLY FLY IN THE OINTMENT MIGHT BE CONVECTIVE DEBRIS FIELD WORKING ITS WAY ONTO THE SOUTHEAST COASTAL REGION THIS MORNING WHICH MAY LEAD TO LIMITED CONVECTIVE DEVELOPMENT. THE HRRR HAS NOT DEPICTED WELL THE STORMS MOVING INTO MAINLAND MONROE COUNTY, BUT OVERALL ITS ANALYSIS OVER THE ATLANTIC HAS BEEN GOOD. IT SHOWS SHOWERS BEGINNING TO FORM AFTER 16Z ACROSS MOST OF THE SOUTH FLORIDA AND THEN EXPANDING THROUGH THE AFTERNOON. GIVEN THE INSTABILITY DEPICTED FROM THE MORNING ATMOSPHERE PROFILE, THIS APPEARS AS REASONABLE WITH THE LOW LEVELS AFTER WARMING SURFACE TEMPERATURES BECOMING VERY UNSTABLE. THE MID LEVEL LAPSE RATES ARE STILL NOT IMPRESSIVE SO THE MAIN THREAT WILL CONTINUE TO BE LOCALLY HEAVY RAIN BUT ISOLATED STRONG WIND GUSTS AND EVEN A WATERSPOUT WILL BE POSSIBLE FROM THE STRONGER STORMS THAT COULD MATERIALIZE. KOB && .PREV DISCUSSION... /ISSUED 736 AM EDT SAT AUG 3 2013/ AVIATION... SCATTERED SHRA/TSRA ARE EXPECTED TO DEVELOP ACROSS SOUTH FL TODAY. PLACED VCTS ALL TERMINALS FOR THE AFTERNOON WHEN TSTORMS WILL BE MOST PREVALENT. IFR IS POSSIBLE AT ANY GIVEN TERMINAL, BUT IT WOULD BE BRIEF AND CONFIDENCE IS TOO LOW TO PLACE ANYTHING MORE THAN VCTS AT THIS TIME. LIGHT-CALM WINDS THIS MORNING ARE FORECAST TO BECOMING S-SE EAST COAST (EXCEPT LIKELY REMAINING SW AT KTMB) AND SW AT KAPF AT 5-10 KT, THEN CALM TONIGHT. /DG PREV DISCUSSION... /ISSUED 351 AM EDT SAT AUG 3 2013/ DISCUSSION... SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WERE ALREADY DEVELOPING EARLY THIS MORNING ACROSS THE ATLANTIC AND GULF WATERS...WITH A FEW SHOWERS AND STORMS ALSO DEVELOPING OVER LAND. THE REMNANTS OF DORIAN WERE LOCATED EAST OF MELBOURNE THIS MORNING...AND THE SYSTEM WAS SHOWING SIGNS OF REDEVELOPING. MODEL GUIDANCE IS INDICATING THAT THE TAIL OF THE DEVELOPING LOW PRESSURE WILL REMAIN ACROSS THE LOCAL ATLANTIC WATERS AND ACROSS SOUTH FLORIDA TODAY AS THE SYSTEM MOVES SLOWLY OFF TO THE NORTH AND NORTHEAST. MAV GUIDANCE FOR POPS SEEMS TOO LOW CONSIDERING THE DEVELOPMENT ACROSS THE REGION ALREADY THIS MORNING SO WENT CLOSER TO THE MET GUIDANCE FOR POPS. HOWEVER...IT IS POSSIBLE THE MID/UPPER LEVEL CLOUDINESS COULD LIMIT CONVECTION. IN ADDITION...THE REGION IS ON THE SUBSIDENCE SIDE OF THE LOW. A LIGHT WEST TO SOUTHWEST FLOW IS EXPECTED TO CONTINUE ACROSS THE REGION TODAY...AND WITH SEA BREEZE BOUNDARIES POSSIBLY DEVELOPING THIS AFTERNOON...THE FORECAST IS FOR SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE REGION. STORM MOTION IS EXPECTED TO BE SLOW TO THE EAST AND NORTHEAST. LOCALLY HEAVY RAIN IS POSSIBLE AS PRECIPITABLE WATER VALUES REMAIN ABOVE 2 INCHES. A FEW STORMS COULD ALSO BECOME STRONG. WITH THE LIGHT FLOW...WATERSPOUTS ARE POSSIBLE OVER ALL OF THE LOCAL WATERS TODAY. THE LOW PRESSURE IS FORECAST TO MERGE WITH A TROUGH TONIGHT THAT WILL MOVE OFF THE EAST COAST. THE TAIL END MAY REMAIN OVER SOUTH FLORIDA THROUGH MIDNIGHT BEFORE BEGINNING TO DIMINISH. SO ISOLATED SHOWERS AND STORMS ARE POSSIBLE ACROSS THE REGION. LIGHT WESTERLY FLOW WILL CONTINUE THROUGH MONDAY AS HIGH PRESSURE REMAINS SOUTH OF THE REGION AND A TROUGH REMAINS OVER THE EASTERN SEABOARD AND WESTERN ATLANTIC. THIS WILL LEAD TO SCATTERED AFTERNOON CONVECTION EACH DAY. THE WESTERLY WINDS MAY LEAD TO TEMPERATURES REACHING A COUPLE DEGREES ABOVE NORMAL EACH DAY ACROSS THE EAST. THE TROUGH WILL BEGIN TO LIFT OUT ON TUESDAY...AND HIGH PRESSURE WILL SLOWLY BUILD ACROSS THE WESTERN ATLANTIC...WITH THE RIDGE AXIS PUSHING NORTH OF THE REGION BY THE MIDDLE OF THE WEEK. TUESDAY WILL BE A TRANSITION DAY AS THE RIDGE AXIS MOVES OVERHEAD...WITH VERY LIGHT WINDS CONTINUING AND SCATTERED STORMS POSSIBLE ANYWHERE ACROSS THE REGION. EASTERLY FLOW IS FORECAST TO REESTABLISH ITSELF BY MIDWEEK...WITH STORMS CONCENTRATING ACROSS THE INTERIOR AND EAST WEDNESDAY AND THURSDAY. AN UPPER LEVEL LOW MAY APPROACH THE REGION BY THE END OF THE WEEK OR NEXT WEEKEND...AND THIS COULD ENHANCE SHOWER AND THUNDERSTORM ACTIVITY ONCE AGAIN. AVIATION... A FEW SHOWERS ARE DEVELOPING IN THE VICINITY OF KAPF SO PLACED VCSH THERE OVERNIGHT. THERE IS A LESSER CHANCE ALONG THE ATLANTIC COAST EARLY THIS MORNING. SCATTERED SHRA/TSRA IS EXPECTED TO DEVELOP DURING THE AFTERNOON ACROSS SOUTH FL, SO PLACED VCTS ALL TERMINALS THEN. IFR IS POSSIBLE AT ANY GIVEN TERMINAL, BUT IT WOULD BE BRIEF AND CONFIDENCE IS TOO LOW TO PLACE ANYTHING MORE THAN VCTS FOR THIS AFTERNOON AT THIS TIME. LIGHT- CALM WINDS THIS MORNING ARE FORECAST TO BECOMING S-SE EAST COAST (EXCEPT LIKELY REMAINING SW AT KTMB) AND SW AT KAPF AT 5-10 KT. /GREGORIA MARINE... A RATHER TRANQUIL MARINE FORECAST WITH THE REMNANTS OF DORIAN CONTINUING TO MOVE NORTH OF THE LOCAL WATERS OVER THE WEEKEND. HOWEVER...THERE COULD BE LOCALLY ROUGH SEAS NEAR STRONGER STORMS THAT MOVE ACROSS THE LOCAL WATERS TODAY. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 90 76 93 77 / 50 20 30 10 FORT LAUDERDALE 89 78 91 78 / 50 20 20 10 MIAMI 91 78 93 78 / 50 20 30 10 NAPLES 90 76 90 76 / 30 20 20 10 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. &&
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 403 AM EDT SAT AUG 3 2013 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 040400- 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- 403 AM EDT SAT AUG 3 2013 ...SCATTERED THUNDERSTORMS, FOCUSED INTERIOR/EAST COAST THIS AFTERNOON... ...LOCALLY HEAVY RAINFALL, ISOLATED STREET FLOODING POSSIBLE... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE FORECAST TODAY, BECOMING FOCUSED ACROSS THE EAST COAST THIS AFTERNOON. THE MAIN IMPACTS FROM THE THUNDERSTORMS WILL BE OCCASIONAL LIGHTNING STRIKES, HEAVY RAINFALL AND GUSTY WINDS. FLOODING: LOCALLY HEAVY RAINFALL IS POSSIBLE WHICH COULD LEAD TO STREET FLOODING AT ISOLATED LOCALES TODAY. WIND: STRONG WIND GUSTS OF 40 TO 50 MPH IS POSSIBLE IN THE STRONGEST THUNDERSTORMS. WATERSPOUTS: LIGHT LOW LEVEL WINDS COULD LEAD TO THE DEVELOPMENT OF ISOLATED WATERSPOUTS ACROSS THE LOCAL WATERS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SCATTERED MAINLY AFTERNOON THUNDERSTORMS ARE EXPECTED EACH DAY...MOST FOCUSED OVER THE INTERIOR. .SPOTTER INFORMATION STATEMENT... 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. GREGORIA
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 1258 PM EDT SAT AUG 3 2013 FLZ066-070-031730- HENDRY FL INLAND COLLIER COUNTY FL 1258 PM EDT SAT AUG 3 2013 ...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR HENDRY COUNTY... NORTHERN COLLIER COUNTY...FOR FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH... * UNTIL 130 PM EDT * AT 1254 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 9 MILES NORTHWEST OF HENDRY CORRECTIONAL I/A/P...AND MOVING NORTHEAST AT 15 MPH. * THE STORM WILL AFFECT... RURAL CENTRAL HENDRY COUNTY AND SURROUNDING COMMUNITIES. 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. LAT...LON 2669 8122 2644 8097 2626 8129 2645 8147 TIME...MOT...LOC 1659Z 222DEG 13KT 2643 8126
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
110 PM EDT SAT AUG 3 2013
FLZ066-067-031745-
HENDRY FL INLAND PALM BEACH COUNTY FL
110 PM EDT SAT AUG 3 2013
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR WESTERN PALM BEACH
COUNTY...NORTHEASTERN HENDRY COUNTY...FOR FREQUENT TO EXCESSIVE
LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH...
* UNTIL 145 PM EDT
* AT 107 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES WEST OF OKEELANTA...AND MOVING
NORTHEAST AT 10 MPH.
* THE STORM WILL AFFECT...
LAKE HARBOR...
AND SURROUNDING COMMUNITIES.
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.
LAT...LON 2643 8082 2669 8095 2674 8085 2671 8081
2671 8078 2669 8074 2672 8073 2677 8075
2678 8073 2675 8071 2676 8069 2680 8070
2682 8066 2645 8041
TIME...MOT...LOC 1711Z 236DEG 7KT 2659 8080The Miami radar (KAMX), 37 km away, was scanning. The volume nearest the first event began at 17:16 UTC.
1 lightning. Local standard time, as filed.
A man was struck by lightning at the Miami Motorcross Park northwest of Hialeah.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2013Every state in 2013This day in weather historyWarnings in Florida, August 2013
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: 470206.