Showers and storms developed along the Gulf and Atlantic seabreezes during the late morning and afternoon hours across South Florida. Several rounds of storms developed along the Atlantic seabreeze over the east coast metro, producing several reports of small hail in Broward County around midday.
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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.
Showers and storms developed along the Gulf and Atlantic seabreezes during the late morning and afternoon hours across South Florida. Several rounds of storms developed along the Atlantic seabreeze over the east coast metro, producing several reports of small hail in Broward County around midday.
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 27, 11:16 AM EST, 1 hour 14 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Miami FL 1216 PM EDT Wed Jun 27 2018 .UPDATE... Convection is starting to bubble up as we cross midday. The sea breezes have developed and will serve as focal points for convection through the afternoon and evening. The atmospheric profile is summerlike with little steering flow to influence storm movement. Forecast appears to be on track with no updates anticipated through the afternoon forecast issuance. Have a great Wednesday! && .PREV DISCUSSION... /issued 802 AM EDT Wed Jun 27 2018/ AVIATION... VFR expected through much of the period with the potential for showers and thunderstorms developing later in the day. The focus for convection will be driven by sea breeze development. As the sea breezes push inland, boundary collisions will help increase coverage. Some terminals could see sub-VFR conditions if impacted by convection with short-fused amendments for brief bouts of IFR/LIFR possible. Convection should diminish after sunset with light flow through the rest of the period. PREV DISCUSSION... /issued 327 AM EDT Wed Jun 27 2018/ DISCUSSION... Short term (Today through Thursday night): Weak high pressure will prevail, leading to very weak winds in the low and mid levels of the troposphere. The same typical summertime pattern of sea-breeze driven convection will therefore prevail, with a chance of showers and storms each day, especially over the interior. Mainly typical pulse thunderstorms are expected. Long term (Friday-Tuesday): By Friday or early in the weekend, winds will become generally southeast again, and the southeast winds should then prevail through the weekend into early next week. It is likely that the Saharan Air Layer will have some effect on our weather Friday into the weekend. However, there is uncertainty as to how dense the SAL air will be over South Florida, and which day its influence will be greatest. The GFS and ECMWF are currently suggesting that Saturday and Sunday could be the days with the most SAL over South FL. Despite the SAL, there will be moisture in the region as well. Southeast wind typically brings moist flow into South FL. The good news for east coast beach goers is that PoPs should be held to around 40 percent or lower this weekend, with higher chances of storms over the interior during the afternoons. Early next week, GFS and ECMWF indicate an upper-level trough just off to our east. Despite the possibility of the influence of troughiness in the upper-levels, the GFS and ECMWF only show 1 degree of cooling at 500 mb from -7C the next few days to -8C at that time. So it may not have much of an influence on chances for strong thunderstorms. MARINE... Light, generally southeast winds around 5 kt, will prevail today. Light and variable winds are expected on Thursday, with seas less than 2 feet. A more persistent period of ESE-SE winds around 5- 10 kt will prevail late Friday through the weekend and into early next week, with seas around 2 feet. Locally higher seas and gusty winds are possible with any gusty showers or thunderstorms that may occur. && .PRELIMINARY POINT TEMPS/POPS... West Palm Beach 91 76 90 76 / 50 30 50 30 Fort Lauderdale 90 78 89 78 / 50 30 40 30 Miami 90 78 89 78 / 50 30 50 30 Naples 91 77 90 77 / 40 20 50 30 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && UPDATE...02/RAG
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 438 AM EDT Wed Jun 27 2018 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 272045- 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 from 20 to 60 NM- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of 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- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 438 AM EDT Wed Jun 27 2018 ...SCATTERED THUNDERSTORMS THIS AFTERNOON, ESPECIALLY INTERIOR... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Thunderstorms: There is a chance of thunderstorms developing along sea breezes just inland midday then spread further inland with increasing covering during the afternoon. Cloud-to-ground lightning is the primary threat. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Mainly afternoon and early evening thunderstorms are likely each day, especially over interior South Florida. Cloud-to-ground lightning is the primary threat. Heat index values may approach 105 degrees during the days Friday through Sunday, especially over western sections of South Florida. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami. KONARIK
The Miami radar (KAMX), 62 km away, was scanning. The volume nearest the first event began at 17:26 UTC.
1 hail. Local standard time, as filed.
Public report of penny sized hail near the intersection of University Drive and Sunrise Boulevard in Plantation.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2018Every state in 2018This day in weather historyWarnings in Florida, June 2018
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: 771199.