A southward drifting frontal boundary coupled with an upper-level trough and copious amounts of moisture produced a band of showers and thunderstorms across east central Florida. A thunderstorm became severe over the Kennedy Space Center.
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 MLB wrote it up.
A southward drifting frontal boundary coupled with an upper-level trough and copious amounts of moisture produced a band of showers and thunderstorms across east central Florida. A thunderstorm became severe over the Kennedy Space Center.
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 Melbourne, FL wrote its last area forecast discussion before the first event at Jun 5, 8:36 AM EST, 5 hours 5 minutes earlier.
EAST CENTRAL FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 936 AM EDT TUE JUN 5 2012 .DISCUSSION... BRISK WLY FLOW REMAINS IN PLACE UP THROUGH THE MID LEVELS THIS MORNING WITH A CONSIDERABLE AMOUNT OF UPPER CLOUDINESS STREAMING DOWNSTREAM FROM THE GULF AREA. LATEST SOUNDING INFO FROM TBW/XMR SHOWS NO CHANGE IN PWAT OVER THE PAST 24H...HOWEVER SOME COOLING ALOFT IN TEMP PROFILE AROUND 1-2C. COUNTERING WINDS WILL NOT ALLOW FOR AN EAST COAST BREEZE BOUNDARY TO DEVELOP. WITH ABSENCE OF THE ECSB FOR CONVECTIVE FORCING MECHANISM AND CONSIDERABLE CLOUD COVER SB INSTABILITY WL BE LARGELY ABSENT. EXPECT SOME DEVELOPMENT OF SHRA AND ISOLD TS MAINLY WEST OF THE FORECAST AREA FROM EARLY TO MID AFTERNOON TO MOVE EAST INTO THE AREA. THIS ACTIVITY MAY HELP PROMOTE SOME ADTL SHRA. WL LOWER PRECIP MENTION TO NO MORE THAN 30 PERCENT WITH ISOLD TS EXPECTED THE REMAINDER OF THE DAY. WITH NO SEA BREEZE FOR THE PREVAILING WESTERLY WINDS TO INTERACT START OF PRECIP TO LATE AFTERNOON. HOWEVER...STORMS THAT FORM WITHIN AIR MASS THAT HAS COOL/DRY MID LEVELS WILL BE CAPABLE OF PRODUCING A FEW STRONG WIND GUSTS. && .AVIATION... CONSIDERABLE HIGHER CLOUDS WITH CIGS NR 200. AFT 19Z EXPECT SCT 040 WITH ISOLD BKN040 AND SFC WND G30KT IN NR TS MOVG EAST AT 20 KT. && .MARINE... WESTERLY WINDS REMAIN IN THE EXERCISE CAUTION WINDOW...15 TO 20 KNOTS THEN WL BEGIN TO DIMINISH LATE IN THE AFTERNOON MOST OF THE NIGHT. WINDS/SEAS LOCALLY HIGHER NEAR SCT SHOWERS MOVING OFFSHORE AFTER 4 PM THIS AFTERNOON. && .MLB WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. && JP/DKW
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MELBOURNE FL 1249 PM EDT TUE JUN 5 2012 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-052300- COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM- COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET OUT 20 NM- COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM- WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO 60 NM OFFSHORE- WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO 60 NM OFFSHORE- WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE- INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 1249 PM EDT TUE JUN 5 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. .THUNDERSTORM IMPACT... SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE REGION INTO THE AFTERNOON AND MOVE QUICKLY EASTWARD AROUND 20 TO 25 MPH ACROSS EAST CENTRAL FLORIDA AND OFFSHORE. DRY AIR AND COLDER TEMPERATURES ALOFT MAY SUPPORT A FEW STRONG TO MARGINALLY SEVERE STORMS INTO MID TO LATE AFTERNOON. THE MAIN THREATS FROM THIS ACTIVITY WILL BE STRONG WIND GUSTS INTO EXCESS OF 40 MPH...SMALL HAIL...AND FREQUENT CLOUD TO GROUND LIGHTNING. .MARINE THUNDERSTORM GUST IMPACT... SCATTERED LIGHTNING STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS AROUND 34 KNOTS ON INLAND LAKES...THE INTRACOASTAL WATERWAY AND THE NEARSHORE WATERS THIS AFTERNOON AND EARLY EVENING. BOATERS SHOULD KEEP AN EYE TO THE WESTERN SKY FOR FAST APPROACHING STORMS AND SEEK SAFE HARBOR UNTIL THE STORMS PASS YOUR LOCATION. .FIRE WEATHER IMPACT... ALTHOUGH LOW RELATIVE HUMIDITY WILL NOT BE A CONCERN TODAY...GUSTY SURFACE AND TRANSPORT WINDS ABOVE 15 MPH WILL ENHANCE FIRE SPREAD FOR EXISTING AND ANY DEVELOPING BRUSH FIRES THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. CHANCES FOR SHOWERS AND STORMS WILL INCREASE THROUGH THURSDAY AS A FRONTAL BOUNDARY STALLS OVER NORTH FLORIDA...THEN SAGS SLOWLY SOUTH INTO THE PENINSULA LATE WEEK. SCATTERED STORMS ARE EXPECTED FRIDAY THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. WIMMER/WEITLICH
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
136 PM EDT TUE JUN 5 2012
FLZ045-053-144-051830-
ORANGE-OSCEOLA-SOUTHERN LAKE COUNTY-
136 PM EDT TUE JUN 5 2012
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH OVER SOUTHWESTERN LAKE COUNTY...SOUTHERN ORANGE
COUNTY...NORTHWESTERN OSCEOLA COUNTY...
* UNTIL 230 PM EDT.
AT 133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER KISSIMMEE...MOVING
EAST AT 20 MPH. ADDITIONAL STRONG STORMS WILL BE POSSIBLE ACROSS
SOUTHERN LAKE COUNTY...MOVING INTO THE ORLANDO METRO AREA.
THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.
LAT...LON 2851 8196 2857 8109 2823 8103 2814 8153
2820 8153 2826 8156 2826 8166 2834 8167
2834 8179 2836 8180 2836 8185 2834 8186
2835 8196
TIME...MOT...LOC 1735Z 264DEG 18KT 2830 8142
WEITLICHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
158 PM EDT TUE JUN 05 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0141 PM HAIL 1 E KISSIMMEE 28.30N 81.39W
06/05/2012 E0.25 INCH OSCEOLA FL LAW ENFORCEMENT
KISSIMMEE POLICE REPORTED PEA SIZE HAIL
&&
FXDSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
221 PM EDT TUE JUN 5 2012
FLZ041-044>046-141-144-147-051915-
COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY-NORTHERN BREVARD
COUNTY-NORTHERN LAKE COUNTY-ORANGE-SEMINOLE-SOUTHERN LAKE COUNTY-
221 PM EDT TUE JUN 5 2012
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER NORTHERN BREVARD COUNTY...
LAKE COUNTY...ORANGE COUNTY...SEMINOLE COUNTY...VOLUSIA COUNTY...
* UNTIL 315 PM EDT.
AT 217 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL
OVER FERNDALE...MOVING EAST-NORTHEAST AT 25 MPH.
LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS
INCLUDE MUCH OF EAST CENTRAL FLORIDA OVER AREAS NEAR AND NORTHWARD
OF STATE ROAD 50.
THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.
STATE LAW REQUIRES HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS
ARE IN USE.
LAT...LON 2896 8196 2897 8166 2928 8165 2932 8168
2939 8142 2927 8141 2927 8116 2941 8116
2943 8110 2908 8093 2875 8072 2885 8081
2879 8078 2844 8055 2840 8059 2838 8196
TIME...MOT...LOC 1818Z 238DEG 16KT 2864 8177
52PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
230 PM EDT TUE JUN 05 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0208 PM TSTM WND GST ORLANDO EXECUTIVE AIRPO 28.55N 81.34W
06/05/2012 M46 MPH ORANGE FL ASOS
KORL OBSERVATION REMARK 24040/1808
&&
FXDPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
236 PM EDT TUE JUN 05 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0135 PM TSTM WND GST 3 SSE HAULOVER CANAL 28.70N 80.73W
06/05/2012 M49 MPH BREVARD FL OTHER FEDERAL
WIND TOWER 418 AT 54 FEET 43 KNOTS.
&&
FXDThe Melbourne radar (KMLB), 54 km away, was scanning. The volume nearest the first event began at 18:40 UTC.
1 thunderstorm wind. Local standard time, as filed.
U.S. Air Force Wind Tower 511 at the Kennedy Space Center recorded a wind gust of 58 mph as a severe thunderstorm moved overhead.
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: 375208.