An upper level trough of low pressure moved across Central Florida causing numerous thunderstorms to develop over South Florida including Lake Okeechobee during the afternoon.
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 trough of low pressure moved across Central Florida causing numerous thunderstorms to develop over South Florida including Lake Okeechobee during the afternoon.
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 Jun 8, 8:51 AM EST, 2 hours 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 951 AM EDT FRI JUN 8 2012 .DISCUSSION...CURRENTLY HAVE A STATIONARY FRONTAL BOUNDARY DRAPED ACROSS N FL WITH A DEEPENING MID LEVEL TROUGH IN THE FAR WESTERN GOFMEX. AT THE SAME TIME THE SUBTROPICAL RIDGE STRETCHES FROM THE WESTERN CARIBBEAN INTO THE ATLANTIC. THESE SYSTEMS ARE COMBINING TO PRODUCE A DEEP WESTERLY FLOW ACROSS S FL AND AIDING IN THE TRANSPORT OF ABUNDANT TROPICAL MOISTURE OVER THE REGION. THIS WILL ALSO ALLOW FOR CONVEVTION TO FIRE UP OVER THE WESTERN PORTIONS OF THE CWA BY LATE THIS MORNING AND THEN MOVE TOWARDS THE E CST METRO REGION DURING THE AFTERNOON HOURS ESPECIALLY BROWARD AND PALM BEACH COUNTIES ALONG WITH THE LAKE OKEE REGION. THE HRRR WHICH PERFORMS QUITE WELL IS SHOWING DEVELOPMENT FROM GLADES TO CENTRAL COLLIER COUNTIES BY NOON AND THEN BUILDING TOWARDS THE NORTHEAST AND THIS SEEMS REASONABLE GIVEN THE ABOVE DISCUSSION. SO THE EMPHASIS WILL BE GENERALLY BE INLAND AWAY FROM THE IMMEDIATE COASTAL COLLIER COUNTY ZONE BUT ALL IN ALL WITH THE ABUNDANCE OF MOISTURE AND INSTABILITY JUST ABOUT ANYWHERE COULD GET AT LEAST SOME CONVECTION. IN ADDITION, THE 12Z MFL SOUNDING DOES SHOW SOME DRYING OCCURRED IN THE MID LEVELS WHICH HAS ALLOWED FOR SOME BREAKS IN THE CLOUDS WHICH IN TURN WILL ALSO HELP IN THE DIURNAL HEATING CYCLE ALONG WITH THE POSSIBLE STRONG WIND GUSTS FROM THE STRONGER STORMS THAT DO DEVELOP. && .PREV DISCUSSION... /ISSUED 707 AM EDT FRI JUN 8 2012/ AVIATION...A VRY MOIST SW WND FLOW ALOFT OVER S FLA ATTM WITH SOME SHRA DVLPG OFF AND ON OVER THE INTERIOR WHICH HAV BEEN MOVG NE AND INTO THE ATLC. ALL TERMINALS VFR THRU 16Z THOUGH VCSH PSBL SE AND AT KAPF WITH VRY BRIEF MVFR CIG. AFT 16Z E COAST TERMINALS VCTS WITH TSRA PSBL THRU 00Z THEN VCSH. GUSTY WNDS PSBL WITH TSRA AND LCLLY HVY RA. SFC WNDS SSW-SW < 10 KTS WITH A PSBL SSE SEA BRZE DVLPG AFT 14Z. AT KAPF...VCSH INITIALLY AND TSRA PSBL BUT WILL AMD AS NEEDED WITH VCTS AFT 14Z. SFC WND CALM ATTM BUT WL BCM SSW-SW ARND 10 KTS. PREV DISCUSSION... /ISSUED 330 AM EDT FRI JUN 8 2012/ DISCUSSION... IT REMAINS VERY HUMID THIS MORNING ACROSS THE REGION WITH DEWPOINTS IN THE LOW TO MID 70S AND TEMPS REMAINING IN THE 70S TO LOW 80S. WATER VAPOR ANALYSIS FROM EARLY THIS MORNING SHOWED A WEAK SHORTWAVE MOVING ACROSS THE FLORIDA PENINSULA AND OUT INTO THE WESTERN ATLANTIC...WITH SHOWERS MOVING ACROSS CENTRAL FLORIDA AND TOWARDS GLADES COUNTY AND LAKE OKEECHOBEE. ANOTHER LINE OF SHOWERS AND THUNDERSTORMS WAS LOCATED ACROSS THE NORTHERN KEYS...WITH A FEW SHOWERS AND THUNDERSTORMS NEAR MIAMI. ANOTHER SHORTWAVE WAS MOVING NORTHEAST ACROSS THE CENTRAL/EASTERN GULF...TO THE NORTH OF THE YUCATAN...AROUND THE DEEP LAYER RIDGE LOCATED OVER THE NORTHWEST CARIBBEAN/FLORIDA STRAITS AND THE WESTERN ATLANTIC. THIS SHORTWAVE WILL MOVE ACROSS THE EASTERN GULF AND ACROSS CENTRAL FLORIDA THROUGH THE AFTERNOON INTO THE EVENING HOURS. A SLOW MOVING UPPER LEVEL TROUGH REMAINED ACROSS THE WESTERN GULF...AND A SURFACE LOW IS EXPECTED TO DEVELOP ACROSS THE NORTHWEST GULF TODAY. A SURFACE BOUNDARY WAS LOCATED ACROSS NORTH FLORIDA AND THE NORTHERN GULF...AND THIS FEATURE IS EXPECTED TO REMAIN ALMOST STATIONARY TODAY. SO DIFFLUENT UPPER LEVEL WESTERLY FLOW WILL CONTINUE ACROSS SOUTH FLORIDA...WITH THE SHORTWAVE HELPING SPARK CONVECTION THROUGH THE DAY. WITH THE DEEP LAYER RIDGE PUSHING RIGHT UP AGAINST SOUTH FLORIDA..THE BEST MOISTURE WILL REMAIN ACROSS THE NORTHERN HALF OF THE REGION AND NORTHWARD TOWARDS THE WEAK SURFACE BOUNDARY. CLOUDINESS TODAY COULD LIMIT HEATING AND INSTABILITY A LITTLE...AND WITH THE SOUTHWEST FLOW ALOFT...SEA BREEZE BOUNDARIES COULD HAVE A HARD TIME DEVELOPING. KEPT HIGH TEMPERATURES IN THE UPPER 80S TO AROUND 90...AND TEMPERATURES COULD QUICKLY RISE ABOVE 90 BREAKS IN THE CLOUDS. WITH THE SHORTWAVE MOVING ACROSS CENTRAL FLORIDA...SHOWERS AND THUNDERSTORMS LOOK LIKE A GOOD BET FOR THE REGION TODAY...SO BUMPED UP POPS TO 70 TO 80 PERCENT ACROSS THE NORTHERN HALF...AND AROUND 60 PERCENT SOUTH OF FORT LAUDERDALE. THE FORECAST SOUNDINGS LOOK VERY TROPICAL...WITH MAINLY MOIST ADIABATIC LAPSE RATES AND PWATS AOB 2 INCHES. SO LOCALLY HEAVY RAINFALL WILL BE POSSIBLE AS STORMS MOVE TO THE EAST AROUND 10 TO 15 KNOTS. STRONG STORMS WILL ALSO BE POSSIBLE...WITH THE MAIN THREAT BEING WINDS OF 45 TO 55 MPH. THE SHORTWAVE IS NOT EXPECTED TO EXIT INTO THE WESTERN ATLANTIC UNTIL LATE IN THE EVENING...SO SHOWERS AND STORMS SHOULD CONTINUE THROUGH THE LATE EVENING BEFORE BEGINNING TO DIMINISH. AS LOW PRESSURE AND THE UPPER LOW ACROSS THE NORTHWEST GULF MOVES BACK TO THE NORTH AND NORTHEAST...THE SURFACE BOUNDARY ACROSS NORTH FLORIDA WILL ALSO MOVE NORTHWARD AND SURFACE HIGH PRESSURE WILL MOVE SOUTHEAST INTO THE WESTERN ATLANTIC. IN ADDITION...THE DEEP LAYER RIDGE OVER THE FLORIDA STRAITS IS EXPECTED TO BE CENTERED ACROSS SOUTH FLORIDA BY SATURDAY EVENING...WITH RISING HEIGHTS ACROSS SOUTH FLORIDA. SO THE DEEP MOISTURE OVER THE REGION WILL PUSH NORTHWARD...LOWERING RAIN CHANCES ACROSS THE SOUTHERN HALF OF THE REGION. HOWEVER...SCATTERED SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED...WITH THE BEST CHANCE ACROSS THE NORTHERN HALF OF THE REGION. IN ADDITION...WITH AN EASTERLY FLOW EXPECTED TO BEGIN IN THE AFTERNOON...CONVECTION COULD ACTUALLY BE ENHANCED ACROSS THE LAKE REGION AS SEA BREEZE BOUNDARIES COLLIED. AN OVERALL DRYING TREND IS EXPECTED ON SUNDAY...WITH HEIGHTS CONTINUING TO SLOWLY RISE. TEMPERATURES WILL ALSO RISE...AND HIGHS ON SUNDAY COULD APPROACH THE UPPER 90S ACROSS THE INTERIOR WEST...WITH MAINLY LOW 90S ELSEWHERE. ANOTHER WEAK SHORTWAVE COULD ALSO ROTATE ACROSS CENTRAL FLORIDA ON SUNDAY. WITH A LIGHT EASTERLY FLOW ACROSS THE REGION...THE BEST CHANCE OF RAIN WILL BE ACROSS THE INTERIOR AND TOWARDS THE GULF COAST. MID AND UPPER LEVEL HIGH PRESSURE IS EXPECTED TO REMAIN OVER OR NEAR THE REGION THROUGH THE BEGINNING OF NEXT WEEK...WITH SURFACE HIGH PRESSURE REMAINING ACROSS THE WESTERN ATLANTIC. THE UPPER LEVEL TROUGH WILL MOVE SLOWLY EAST ACROSS LOUISIANA AND THE NORTHERN GULF. SO LIGHT EASTERLY LOW LEVEL FLOW WILL CONTINUE...AND SEA BREEZE INTERACTION WILL DICTATE SHOWERS AND STORMS. THE BEST CHANCE OF STORMS WILL CONTINUE TO BE ACROSS THE GULF COAST AND INTERIOR. THE UPPER LEVEL TROUGH WILL MOVE TOWARDS THE EASTERN GULF AND THE FLORIDA PENINSULA ON TUESDAY...AND THEN REMAIN ACROSS THE NORTHEAST GULF AND NORTHERN FLORIDA THROUGH THE END OF THE WEAK. THIS FEATURE MAY HELP ENHANCE THE AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS SLIGHTLY WEDNESDAY THROUGH THE END OF THE WEEK. HOWEVER...POPS ARE EXPECTED TO REMAIN NEAR CLIMO AT LOW END CHANCE EACH DAY. TEMPERATURES ARE ALSO EXPECTED TO BE NEAR NORMAL. AVIATION... A VRY MOIST SW WND FLOW ALOFT OVER S FLA ATTM WITH SOME SHRA DVLPG OVR THE FLA STRAITS AND SE FLA WITH A LRG AREA OF SHRA MOVG UPON THE W CNTRL FLA COAST AND MOVG TWD LK OKEE. ALL TERMINALS VFR THRU 16Z THOUGH VCSH PSBL SE AND AT KAPF WITH VRY BRIEF MVFR CIG. AFT 16Z E COAST TERMINALS VCTS XCPT PROB30 AT KPBI /KFLL AND KFXE WITH VCTS ELSWHR E COAST. TSRA PSBL THRU 00Z THEN VCSH. GUSTY WNDS PSBL WITH TSRA AND LCLLY HVY RA. SFC WNDS SSW-SW < 10 KTS WITH A PSBL SSE SEA BRZE DVLPG AFT 14Z. AT KAPF...VCSH INITIALLY AND TSRA PSBL BUT WILL AMD AS NEEDED WITH VCTS AFT 14Z. SFC WND CALM ATTM BUT WL BCM SSW-SW ARND 10 KTS. MARINE... THE WINDS WILL REMAIN BELOW 15 KNOTS TONIGHT THROUGH THIS WEEKEND OVER ALL THE LOCAL WATERS...AS THEY SWING FROM A SOUTH TO SOUTHWEST DIRECTION TODAY TO A EASTERLY DIRECTION THIS WEEKEND. THE SEAS WILL ALSO REMAIN AT 4 FEET OR LESS OVER BOTH THE ATLANTIC AND GULF WATERS THROUGH THIS WEEKEND. SO BOATING CONDITIONS SHOULD BE GOOD OUTSIDE OF ANY SHOWERS OR THUNDERSTORMS TODAY INTO THIS WEEKEND. FIRE WEATHER... THE RELATIVE HUMIDITIES WILL REMAIN ABOVE THE 35 PERCENT CRITICAL VALUE THROUGH THIS WEEKEND OVER ALL OF SOUTH FLORIDA. SO NO PROBLEMS ARE EXPECTED. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 89 75 89 75 / 70 50 50 20 FORT LAUDERDALE 90 78 90 78 / 60 40 40 20 MIAMI 90 78 90 78 / 60 40 40 20 NAPLES 87 76 90 76 / 70 40 50 30 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. &&
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 415 AM EDT FRI JUN 8 2012 AMZ610-630-FLZ063-066>075-168-172>174-082200- LAKE OKEECHOBEE-BISCAYNE BAY-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- 415 AM EDT FRI JUN 8 2012 ...NUMEROUS SHOWERS WITH SCATTERED THUNDERSTORMS... ...LOCALLY HEAVY RAINFALL POSSIBLE... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS SOUTH FLORIDA TODAY. THE PRIMARY HAZARDS WILL BE OCCASIONAL TO FREQUENT LIGHTNING STRIKES, GUSTY WINDS, HEAVY RAINFALL, AND POTENTIALLY SMALL HAIL. WIND: A FEW THUNDERSTORMS MAY CONTAIN GUSTY WINDS OF 45 TO 55 MPH. FLOODING: SOME SHOWERS AND THUNDERSTORMS WILL CONTAIN VERY HEAVY RAINFALL. THIS MAY RESULT IN MINOR FLOODING OF LOW LYING FLOOD PRONE AREAS AND URBAN AREAS. RIP CURRENTS: A WEAK SOUTHWESTERLY WIND FLOW WILL RESULT IN A SLIGHT RISK OF RIP CURRENTS AT THE THE COLLIER COUNTY BEACHES, ESPECIALLY THIS AFTERNOON, AS WINDS INCREASE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE CHANCE OF THUNDERSTORMS WILL CONTINUE THROUGH THE PERIOD. THE PRIMARY IMPACTS WILL BE LIGHTNING STRIKES, BRIEF GUSTY WINDS, AND LOCALLY HEAVY DOWNPOURS. .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.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1133 AM EDT FRI JUN 8 2012
FLZ063-066-067-070-081615-
GLADES FL HENDRY FL INLAND COLLIER COUNTY FL INLAND PALM BEACH COUNTY
FL
1133 AM EDT FRI JUN 8 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SIGNIFICANT WEATHER ADVISORY FOR...
WEST CENTRAL PALM BEACH COUNTY
GLADES COUNTY
HENDRY COUNTY
EXTREME NORTH CENTRAL COLLIER COUNTY
* UNTIL 1215 PM EDT
* AT 1130 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES
SOUTHWEST OF VENUS TO 8 MILES SOUTHEAST OF ORTONA TO 7 MILES NORTH
OF HENDRY CORRECTIONAL I/A/P...AND MOVING EAST AT 30 MPH.
* THE LINE OF STORMS WILL AFFECT...
PALMDALE...
DEVILS GARDEN...
MOORE HAVEN...
LAKEPORT...
CLEWISTON...
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 2705 8097 2698 8108 2692 8107 2693 8110
2689 8111 2682 8105 2682 8095 2677 8094
2674 8085 2670 8081 2640 8081 2638 8130
2671 8140 2692 8157 2695 8157 2704 8137
2704 8128 2708 8127 2718 8107
TIME...MOT...LOC 1533Z 257DEG 27KT 2703 8138 2675 8118
2641 8117
GARCIAThe Melbourne radar (KMLB), 129 km away, was scanning. The volume nearest the first event began at 16:13 UTC.
1 lightning. Local standard time, as filed.
A 51 year old male died when he was struck by lightning while boating on Lake Okeechobee during a fishing tournament. In addition, 1 other male on the boat was knocked unconscious and later was examined at a local hospital and released.
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, Glades | 2012-06-08 | 51 | Male | Boating | Direct |
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, June 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: 390571.