Hurricane History in Sebastian, Florida

The storms on the Sebastian record run from the 1715 Fleet hurricane through Frances and Jeanne in 2004 to Hurricane Milton's tornadoes in October 2024.

The oldest is the hurricane that sank the 1715 treasure fleet. Florida State Parks records that survivors and salvagers gathered in a hardscrabble camp near the inlet, and that the camp site is now the McLarty Treasure Museum on the barrier island east of Sebastian. The rest of the record is modern: National Weather Service Melbourne storm reports, Sebastian Inlet District history, local news and FEMA declarations, gathered in the table below.

The table counts storms with a documented Sebastian effect, not every system that crossed Florida. Each storm with its own page in this Sebastian history series (Frances and Jeanne, Wilma, Fay, Matthew, Irma, Dorian, Ian, Nicole and Milton) carries the full local account; this page compares them. FEMA declaration numbers are statewide Florida declarations, and Indian River County's place in each one is not restated here.

2004 was the worst year because two hurricanes, Frances and Jeanne, crossed the coast at nearly the same point south of Sebastian within three weeks, putting the Indian River Lagoon shoreline under hurricane force twice.

The Sebastian Inlet District history puts it plainly: Frances made landfall on Hutchinson Island on September 5, 2004, and Jeanne followed on September 25 in almost exactly the same spot as a strong Category 3 storm.

Frances left its mark on the mainland roads. The NWS Melbourne Frances report estimated storm surge on the west bank of the Indian River at 3 to 4 feet within southern Brevard and Indian River Counties, and it records that part of the northbound lane of U.S. 1 north of the Sebastian River was closed because the road was at risk of undermining.

Jeanne was stronger at Sebastian itself. In the NWS Melbourne Jeanne report, a tower in Sebastian logged a peak wind of 101 knots early on September 26, 2004, second in Indian River County only to a 106 knot reading at Vero Beach. The same report says the Sebastian River bridge was damaged by erosion and closed for at least a week, and that severe erosion ran along the whole west bank of the lagoon in Indian River County.

The Sebastian Inlet District credits a 2002 renovation with keeping both Sebastian Inlet jetties standing through the two storms, and it records that FEMA later paid for 86,000 cubic yards of sand placed on downdrift beaches in 2007 to repair hurricane damage.

Matthew in 2016, Irma in 2017 and Dorian in 2019 all brought watches or warnings to Sebastian, but each one stayed offshore or weakened before reaching the city.

Matthew was the closest call. On October 7, 2016, Sebastian Daily reported that residents in Brevard and Indian River Counties were seeing minimal damage from Hurricane Matthew, a Category 4 storm that stayed offshore, with all bridges open that morning. In September 2017, on September 12, Sebastian Daily reported that Sebastian, Fellsmere and Vero Beach had been spared.

Dorian crawled northwest at 1 mph in early September 2019. On September 3, Sebastian Daily reported that Sebastian was no longer in the projected path, though the city remained under a hurricane warning until the Category 3 storm passed in open water. That same month the Sebastian Inlet District called off a large community event planned for its 100th anniversary because of Dorian.

Near misses still cost sand. The Sebastian Inlet District history records that Matthew and Dorian eroded portions of the north and south shorelines along the Sebastian Inlet Channel, and that its stockpile of sand at the inlet was used for emergency dune repair after Hurricane Sandy, whose eye passed within 200 miles of Sebastian Inlet on October 26, 2012 with waves peaking at 30 feet offshore.

Storms reach Sebastian as wind on the Indian River Lagoon waterfront, as flooding rain, and as tornadoes in outer rain bands, and each type has a clear example in the NWS Melbourne record.

Rain is the story of Tropical Storm Fay. On the NWS Melbourne Fay page, the storm total from August 18 to 23, 2008 reached 22.25 inches at Sebastian, the fifth highest total on the whole NWS Melbourne list for a storm that never became a hurricane. During Hurricane Ian in September 2022, Sebastian Daily still reported roads in Sebastian, Fellsmere and Vero Beach beginning to flood.

Wind hits the waterfront first. For Hurricane Nicole in November 2022, the NWS Melbourne gust list shows 67 mph at Sebastian at 11 p.m. on November 9, and the post storm report lists a low pressure of 981.0 millibars at Sebastian Municipal Airport. Sebastian Daily reported severe damage to the docks at Sebastian Saltwater, Squid Lips, Capt. Hirams Resort and other businesses on Indian River Drive.

Tornadoes are the hazard that surprised the county in 2024. Hurricane Wilma's report from October 24, 2005 already showed tornado damage north of the Sebastian Inlet Bridge and a 90 knot gust at the Sebastian Inlet north jetty station run by the Florida Institute of Technology. Milton went further: Vero News reported on October 17, 2024 that 51 homes destroyed in the tornado outbreak before Milton's landfall made up most of $59.06 million in Indian River County damage, with residential losses mostly on the barrier island and in the Sebastian Highlands. A day later Vero News reported that meteorologists had confirmed six tornadoes in Indian River County on October 9, and that one of them destroyed homes in the Highlands before crossing the Indian River Lagoon. NWS Melbourne's rainfall list for Milton shows 7.20 inches 2 miles south southwest of Sebastian.

Hurricane season for Sebastian runs June 1 to November 30, and Indian River County Emergency Management leads storm planning, warnings and evacuations for the city and the rest of the county.

The National Hurricane Center gives the Atlantic season dates and says that, on the 1991 to 2020 climate period, an average season brings 14 named storms. Every modern storm in the Sebastian table above arrived between mid August and mid November, from Fay on August 18, 2008 to Nicole on November 10, 2022.

Indian River County Emergency Management, based at 4225 43rd Ave in Vero Beach, develops and coordinates emergency plans for all disaster events in Indian River County under Florida Statute 252. Its page links the Alert Indian River notification system, an interactive evacuation zone viewer, public shelter lists and the county's Post Disaster Redevelopment Plan, which apply to Sebastian, Roseland, Wabasso and the barrier island alike.

Federal aid follows a presidential declaration. FEMA's pages list major disaster declarations for Florida for Frances (DR-1545), Jeanne (DR-1561), Wilma (DR-1609), Matthew (DR-4283), Irma (DR-4337), Ian (DR-4673), Nicole (DR-4680) and Milton (DR-4834); the Milton declaration came on October 11, 2024, one day after the morning rain totals near Sebastian were posted.