The collision of the East Coast and Gulf Coast sea breeze boundaries over the central Florida interior resulted in several storms which produced damaging winds and penny sized hail from Oviedo to Orlando to St. Cloud.
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.
The collision of the East Coast and Gulf Coast sea breeze boundaries over the central Florida interior resulted in several storms which produced damaging winds and penny sized hail from Oviedo to Orlando to St. Cloud. Trees fell onto two mobile homes and produced minor damage. A young boy in one of the mobile homes sustained minor injuries to his arm as a tree crashed onto the home.
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 19, 12:47 PM EST, 5 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 147 PM EDT SAT JUN 19 2010 .DISCUSSION... REMAINDER OF THIS AFTERNOON-EVENING...CONVECTION SLOW TO START BUT LOTS OF INSTABILITY AND MOISTURE TO WORK WITH SO ONCE STORMS DEVELOP COVERAGE WILL INCREASE WITH STORMS LASTING INTO THE EARLY EVENING OVER THE INTERIOR WHERE BEST BOUNDARY INTERACTIONS ARE EXPECTED TO OCCUR. OVERNIGHT...ONCE CONVECTION DIES DOWN AND THE DEBRIS CLOUDS DISSIPATE LOOKING AT MOSTLY CLEAR SKIES. TEMPERATURES SHOULD SLOWLY DECREASE DUE TO HIGH MOISTURE CONTENT OF THE LOWER LAYERS BUT WITH SKIES CLEARING A LIGHT LAND BREEZE MAY DROP LOWS IN A FEW SPOTS ALONG THE COAST BREVARD SOUTH A COUPLE OF DEGREES BEFORE SUNRISE BUT GENERALLY OVERNIGHT LOWS EXPECTED TO BE IN THE LOWER 70S. SUNDAY...WITH THE SURFACE RIDGE AXIS SLOWLY SHIFTING UP THE PENINSULA AND MORE OF AN EASTERLY FLOW STARTING TO TAKE OVER... SEA BREEZES SHOULD DEVELOP ALONG THE IMMEDIATE COAST BREVARD SOUTH BY EARLY AFTERNOON AND PUSH INLAND THE REST OF THE AFTERNOON. ISOLATED STORMS EARLY/MID AFTERNOON ALONG THE COAST CAPE SOUTH TRANSITIONING INLAND MID AND LATE AFTERNOON. WITH THE SURFACE RIDGE AXIS OVER THE NORTHERN CWA THE SEA BREEZE MAY BE A LITTLE SLOWER TO GET GOING NORTH OF THE CAPE. MON...THE SURFACE RIDGE AXIS STILL NORTH WILL DRIFT A BIT FURTHER EASTWARD INTO THE WESTERN ATLC. THIS WILL ALLOW WINDS TO BACK AND BECOME MORE UNIFORMLY EASTERLY FROM THE SURFACE THROUGH 10.0 KFT. AS A RESULT OF THIS AND A MORE DIRECTIONAL STEERING COMPONENT OUT OF THE EAST...AREAS ALONG THE COAST WILL SEE A DECREASE IN SHOWER/STORM CHANCES WITH BEST CHANCES HERE LATE MORNING AND EARLY AFTERNOON. AS THE EAST COAST SEA BREEZE BOUNDARY PUSHES MORE RAPIDLY INLAND ON THIS DAY...INTERIOR PORTIONS OF EAST CENTRAL FLORIDA WILL SEE GREATER PRECIPITATION CHANCES IN THE MID-LATE AFTERNOON WITH STORMS PILING UP IN WEST-CENTRAL FLORIDA LATE IN THE DAY AND EVENING. TUE-FRI...RELATIVELY DRIER AIR WILL FILTER INTO THE REGION ON TUE WITH THE LOWEST CHANCE FOR PRECIPITATION (FOR NOW) IN THE EXTENDED AND WILL KEEP POPS AT 30%. THE GFS REMAINS ADAMANT ON BRINGING ACROSS THE SOUTHERN PENINSULA AN INVERTED TROUGH/EASTERLY WAVE ON WED WITH MUCH DEEPER MOISTURE LINGERING AROUND THROUGH FRIDAY. THE ECMWF KEEPS THIS WAVE FURTHER SOUTH. IF THE GFS IS CORRECT...MORE HUMID CONDITIONS AND INCREASED RAINFALL CHANCES WILL PREVAIL. IF HOWEVER THE ECMWF IS CORRECT THEN DRIER CONDITIONS MAY PERSIST PAST TUE INTO LATE WORK-WEEK. FOR NOW...WILL NOT MAKE ANY MAJOR CHANGES TO THIS PERIOD AND KEEP LOW END POP CHANCES (~30%) ACROSS THE BOARD WED-FRI. MAX TEMPERATURES ARE FORECAST TO BE NEAR CLIMO IN THE LOWER 90S INTERIOR AND UPPER 80S TO NEAR 90 DEGREES ALONG THE COAST. ONSHORE FLOW WILL ALLOW MIN TEMPERATURES TO REMAIN A FEW TO SEVERAL DEGREES ABOVE CLIMO IN THE MIDDLE/UPPER 70S. && .AVIATION... LIGHTNING STORMS THROUGH EARLY EVENING THEN A FEW STORMS AS LEFT OVER BOUNDARIES CONTINUE TO COLLIDE BUT MOST/ALL OF THE CONVECTION SHOULD BE OVER BY MIDNIGHT. DEBRIS CLOUDS DISSIPATING AFTER MIDNIGHT WITH SKIES BECOMING MOSTLY CLEAR AFTER 06Z. WITH AN EARLIER START TO THE EAST COAST SEA BREEZE SUNDAY MVFR STORMS/SHOWERS SHOULD MOVE ACROSS THE COASTAL AREAS EARLY AFTERNOON...TRANSITIONING TO THE INTERIOR MID/LATE AFTERNOON. && .MARINE... TONIGHT-SUNDAY...LIGHT WINDS BECOME SOUTH SOUTHEAST AROUND 10 KNOTS SUNDAY AS SURFACE RIDGE AXIS SHIFTS NORTH OF THE AREA. STORMS VICINITY OF THE GULF STREAM OVERNIGHT. SEAS 2 FEET OR LESS WITH SOUTH TO SOUTHEAST WINDS OFFSHORE WITH SEA BREEZE COMPONENT PRODUCING MORE OF A SOUTHEAST TO EAST WIND OVER THE NEARSHORE WATERS IN THE AFTERNOON. MON-FRI...SEAS BEGIN GRADUALLY BUILDING TUESDAY IN RESPONSE TO STRONGER PRESSURE GRADIENT ASSOCIATED WITH WAVE PROGGED TO MOVE ACROSS BAHAMAS AND INTO GULF DURING THE WEEK AND REMAIN IN 5 TO 6 FT RANGE INTO FRIDAY. IF THE WAVE DOES NOT DEVELOP AS AGRESSIVELY AS INDICATED IN THE GFS THEN SEAS MAY BE LOWER. && .PRELIMINARY POINT TEMPS/POPS... DAB 75 88 75 89 / 20 50 20 50 MCO 75 90 74 91 / 20 60 20 50 MLB 74 87 77 88 / 20 50 20 40 VRB 76 87 76 89 / 20 50 20 40 LEE 73 91 75 91 / 20 60 20 60 SFB 75 90 76 92 / 20 60 20 50 ORL 74 90 76 91 / 20 60 20 50 FPR 75 88 75 89 / 20 50 20 40 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. && SHORT TERM...WIMMER LONG TERM....HAGEMEYER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 548 AM EDT SAT JUN 19 2010 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-192200- 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- 548 AM EDT SAT JUN 19 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... DAYTIME HEATING OF A MOIST AIR MASS WILL LEAD TO SCATTERED TO NUMEROUS LIGHTNING STORMS THIS AFTERNOON. THE PRIMARY FOCUS WILL BE THE EAST AND WEST COAST SEA BREEZE BOUNDARIES...WITH THE HIGHEST STORM COVERAGE OCCURRING ACROSS THE INTERIOR. HOWEVER... COASTAL SECTIONS WILL HAVE A CHANCE FOR STORMS ALONG THE SLOWLY INLAND MOVING SEA BREEZE. THE PRIMARY HAZARD WILL BE FREQUENT TO EXCESSIVE LIGHTNING STRIKES. ALTHOUGH THERE HAVE BEEN NO REPORTS OF PEOPLE BEING STRUCK BY LIGHTNING THE PAST FEW DAYS...SEVERAL STRUCTURAL FIRES HAVE BEEN CAUSED BY LIGHTNING. A FEW STORMS MAY ALSO PRODUCE 50-60 MPH WINDS AND SMALL HAIL. YOU SHOULD MOVE INDOORS AT THE FIRST SIGN OF A DEVELOPING STORM IN YOUR VICINITY. ...FLOOD IMPACT... WEAK WINDS THROUGH THE ATMOSPHERE WILL LEAD TO VERY SLOW STORM MOTION. LOCALIZED RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED AGAIN THIS AFTERNOON...CAUSING PONDING OF WATER ON ROADWAYS AND MINOR FLOODING. ...MARINE THUNDERSTORM GUST IMPACT... SCATTERED STORMS WITH FREQUENT TO EXCESSIVE LIGHTNING AND STRONG OUTFLOW WINDS WILL OCCUR ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON. THE GREATEST COVERAGE SHOULD BE INLAND FROM THE COAST BUT A FEW STORMS MAY PUSH OFFSHORE. IF YOU GO BOATING DURING THE FLORIDA WET SEASON...IT IS USUALLY A GOOD IDEA TO WRAP THINGS UP AROUND MIDDAY...UNLESS YOU ARE PREPARED TO AVOID OR RIDE OUT A STRONG STORM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. SCATTERED AFTERNOON LIGHTNING STORMS CAN BE EXPECTED SUNDAY WITH THE MAIN HAZARD BEING LIGHTNING STRIKES. A DEEP ONSHORE FLOW IS EXPECTED TO DEVELOP EARLY NEXT WEEK AND BRING SOME DRIER AIR AND LOWER RAIN CHANCES. THE POSSIBILITY FOR OVERNIGHT AND MORNING COASTAL SHOWERS WILL INCREASE LATER NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. KELLY
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 642 PM EDT SAT JUN 19 2010 FLZ045-192330- ORANGE- 642 PM EDT SAT JUN 19 2010 ...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER WESTERN ORANGE COUNTY... * UNTIL 730 PM EDT. AT 636 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL OVER UNIVERSAL STUDIOS...MOVING EAST AT 5 MPH. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS AND SMALL HAIL INCLUDE BAY HILL...BELLE ISLE...DOCTOR PHILLIPS AND ORLOVISTA. 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. TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE. LAT...LON 2864 8140 2843 8129 2836 8149 2852 8158 TIME...MOT...LOC 2242Z 243DEG 5KT 2848 8144
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
653 PM EDT SAT JUN 19 2010
FLZ041-044-192330-
INLAND VOLUSIA COUNTY-NORTHERN LAKE COUNTY-
653 PM EDT SAT JUN 19 2010
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER CENTRAL VOLUSIA COUNTY...
EASTERN LAKE COUNTY
* UNTIL 730 PM EDT.
AT 653 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL FROM
DELAND TO ORANGE CITY AND DE BARY...NEARLY STATIONARY.
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.
TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES.
STATE LAW REQUIRES HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS
ARE IN USE.
LAT...LON 2908 8124 2884 8120 2884 8133 2884 8136
2887 8136 2884 8140 2907 8139
TIME...MOT...LOC 2253Z 000DEG 3KT 2901 8129 2894 8128
2888 8134SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 727 PM EDT SAT JUN 19 2010 FLZ045-046-200015- ORANGE-SEMINOLE- 727 PM EDT SAT JUN 19 2010 ...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER CENTRAL ORANGE COUNTY... SOUTH CENTRAL SEMINOLE COUNTY... * UNTIL 815 PM EDT. AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL FROM WINTER SPRINGS TO JUST NORTH OF THE ORLANDO INTERNATIONAL AIRPORT. THE LINE WAS NEARLY STATIONARY. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS AND SMALL HAIL INCLUDE BELLE ISLE...FERN PARK...PINE CASTLE AND UNION PARK. 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. TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE. LAT...LON 2873 8109 2838 8116 2838 8141 2873 8134 TIME...MOT...LOC 2326Z 270DEG 1KT 2864 8126 2847 8129
The Melbourne radar (KMLB), 79 km away, was scanning. The volume nearest the first event began at 23:35 UTC.
3 thunderstorm wind, 1 hail. Local standard time, as filed.
Sea breeze boundaries collided and produced a severe thunderstorm which damaged several mobile homes within the Colonial Village Mobile Home Park in Orlando. The winds downed several trees, damaged siding and gutters on several mobile homes and destroyed a car port.
Penny sized hail was observed during a thunderstorm, near the intersection of Dean Road and University Boulevard by a citizen.
Severe thunderstorm winds knocked down several 20 to 40 foot tall trees. Minor damage to a fence also occurred.
Colliding sea breeze boundaries created a locally severe thunderstorm whose winds toppled a tree onto a mobile home in the Palm Valley Mobile Home Park in Oviedo. A young boy in the home experienced minor injuries to his arm as a result of the falling tree.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2010Every state in 2010This day in weather historyWarnings in Florida, June 2010
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: 228144, 228158, 228154, 228150.