A line of showers and thunderstorms formed along a sea breeze collision over the interior peninsula during the early afternoon. As the storms moved northwestward into the Kissimmee area, a short-lived, weak tornado (landspout) developed along the leading edge of a non-supercell storm.
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 line of showers and thunderstorms formed along a sea breeze collision over the interior peninsula during the early afternoon. As the storms moved northwestward into the Kissimmee area, a short-lived, weak tornado (landspout) developed along the leading edge of a non-supercell storm. During the mid afternoon, a sub-severe thunderstorm produced wind damage to a mobile home in Yeehaw Junction.
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 14, 9:00 AM EST, 3 hours 30 minutes earlier.
East Central Florida Forecast Discussion National Weather Service Melbourne FL 10 AM EDT Wed Jun 14 2017 .DISCUSSION... Today-Tonight...A surge nwd of LL moisture from the south peninsula is marked by an advancing area of showers and isold storms over the Treasure Cst. HRRR guid shows the current activity advancing Nwd into Brevard Co before midday. East coast breeze boundary development will be disrupted/delayed by this activity over the Space and Treasure Coasts this morning. Current forecast will remain in place attm. From prev disc... Somewhat drier air (NR H7 and above) as indicated on early sounding points to later convective initiation along the east coast sea breeze during the early afternoon. The GFS shows higher moisture advecting in from the south during the afternoon though, so shower and storm coverage is then expected to increase. The highest rain chances today should be across the interior (60%), especially across the south. Will go with 50% right along the coast, which represents a higher coverage compared to the past few days. This looks reasonable given the change to a south/southwest steering flow. The main storm threat will be frequent lightning strikes in a few strong storms. Storm motion will remain slow, mainly north/northeast 10 mph or less so there will be a chance for quick 2-3 inch downpours too. The presence of some mid level dry air should also bring a potential for strong wind gusts where the most vigorous boundary interactions occur. && .AVIATION... A chance for showers or storms exists this morning from KSUA-KMLB. Otherwise, VFR conditions expected through late morning. The models indicate sea breeze showers and storms will hold off until about 18z and probably until 19-20z at the interior terminals. && .MARINE... Today-Tonight...Axis of subtropical high pressure ridge will settle over the waters. This will produce a southeast/south wind flow. Speeds will be up to around 10 knots with seas 2-3 feet. Expect isolated-scattered showers/storms this morning. Some of the scattered afternoon storms over the mainland may push back to the coast through early evening. && .HYDROLOGY... Shingle Creek at Campbell (SHIF1) had fallen slightly since Tuesday to 1.87 feet below Action Stage as of 9 AM. Any heavy rain over the basin this afternoon would reverse this trend though, so levels will have to be closely monitored. && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && JP/PG/JC
Hazardous Weather Outlook National Weather Service Melbourne FL 1015 AM EDT Wed Jun 14 2017 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-142100- Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia- Brevard County Line to Sebastian Inlet 0-20 nm- Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia- Brevard County Line 20-60 nm-Volusia- Brevard County Line to Sebastian Inlet 20-60 nm- Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County- Northern Lake County-Orange-Seminole-Southern Brevard County- Osceola-Indian River-Okeechobee-St. Lucie-Martin- Coastal Volusia County-Southern Lake County- Northern Brevard County- 1015 AM EDT Wed Jun 14 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... Daytime heating and boundary interactions will lead to scattered to numerous afternoon thunderstorms. Shower and storms will continue to form along east coast sea breeze through the early afternoon. The activity will then gradually build inland while increasing in coverage and intensity through the late afternoon and early evening. Isolated strong storms are anticipated where the strongest boundary interactions occur. Frequent lightning strikes will occur and gusty winds of 40 to 45 mph are also possible. .FLOOD IMPACT... Storm motion will be slowly to the north, so a few of the stronger storms will be capable of producing 2 or 3 inches of rain and considerable water ponding on roadways. .RIP CURRENT IMPACT... A small long period swell will produce a moderate rip current risk. The strongest seaward pull should occur from mid afternoon through early evening due to tidal effects. Only swim in the ocean near a lifeguard. .MARINE THUNDERSTORM GUST IMPACT... Showers and a few storms will move northward at 5 to 10 knots near the coast and over the Atlantic through early afternoon, but scattered stronger storms in the afternoon will impact inland bodies of water. The gust potential with the afternoon storms will be around 35 knots and a few could also affect the intracoastal waters. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. Little, if any, interruption of the very moist conditions is expected. This will lead to scattered to numerous storms each day. The highest coverage should shift towards the western half of the peninsula early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. Rainfall observers are requested to report measured rain amounts of three inches or greater to the National Weather Service in Melbourne. Lascody/Glitto
The Melbourne radar (KMLB), 77 km away, was scanning. The volume nearest the first event began at 17:29 UTC.
1 tornado, 1 thunderstorm wind. Local standard time, as filed.
The Osceola County Sheriffs Office reported that an officer observed a very brief tornado (landspout) touchdown near 1600 John Young Parkway in Kissimmee at 1230EST. No damage was reported.
Osceola County Emergency Management reported that a porch roof was blow off a mobile home on Hines Drive in Yeehaw Junction. The removal of the porch roof resulted in additional damage to the main portion of the home.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2017Every state in 2017This day in weather historyThe tornado archive for Florida, 2017Warnings in Florida, June 2017
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: 693562, 699742.