Florida Officials Highlight Fire Risks from Electric Vehicles During Hurricanes

Florida officials have issued a warning about the fire hazards posed by electric vehicles (EVs) that are submerged in floodwaters, as Hurricane Milton began impacting the state on October 9.

Precautions for Electric Vehicle Owners

In a press conference held early Wednesday, Tampa Mayor Jane Castor urged residents to utilize city garages, especially the upper floors, to protect their electric vehicles from the risk of flood and subsequent fire. She emphasized the importance of elevating electric batteries and items as once they ignite, they cannot be extinguished. She also mentioned that during Hurricane Helene, which occurred two weeks prior, some homes were lost due to fires caused by saltwater flooding electric vehicles. Florida Governor Ron DeSantis had also previously warned residents about the fire risks associated with electric vehicles and floodwaters. He explained that contact with saltwater can cause a short-circuit in the batteries, leading to a chain reaction known as thermal runaway, which results in a fire.

City Measures to Encourage Safe Parking

In anticipation of Hurricane Milton, the City of Tampa mobility department waived all parking fees to encourage more EV users to utilize above-ground parking. The city also issued a notice to residents, stating that during Hurricane Helene, at least two house fires were caused by electric vehicle batteries coming into contact with floodwater.

Statewide Concerns Over EV-Related Fire Risks

The warnings issued by Tampa officials reflect broader concerns about the risks of flood and fire associated with electric vehicles. Florida CFO and State Fire Marshal Jimmy Patronis urged EV manufacturers to take proactive steps to protect lives during Hurricane Milton. His office confirmed 48 lithium-ion battery fires related to storm surge from Hurricane Helene, with 11 of those fires involving EVs. He also called on EV manufacturers to alert consumers to the need to move their EVs to higher ground.

Guidelines for Residents

Patronis advised residents to unplug and move any vehicles, scooters, hoverboards, golf carts, or children’s toys that have been affected by flooding. He also recommended contacting a reputable tow company to safely remove any vehicle that needs to be towed. He emphasized that EVs and lithium-battery powered devices cannot be disposed of in a typical car lot or trash bin, and advised contacting local government for safe disposal locations.

Call to EV Manufacturers

Patronis also called on EV manufacturers in the United States to proactively notify their customers of these risks. He described compromised vehicles and devices as ticking time bombs and committed to coordinating with federal, state, and local officials to raise awareness of these fire hazards following Hurricane Milton.

Safety Measures

To ensure safety, the fire marshal recommended keeping all windows and doors open to allow any flammable gases to vent from the vehicle’s passenger compartment. Other tips included moving the vehicle outside if possible, not charging the vehicle, and disabling it by chocking the wheels, placing the gearshift in park, and disconnecting the ignition key or 12V battery.

Tesla's Guidelines

Tesla, one of the leading EV manufacturers, issued guidance on its website for owners who may encounter a flooding event. The company recommends moving EVs to higher ground ahead of potential “submersion events” and immediately stepping away and contacting first responders if one notices “fire, smoke, audible popping/hissing or heating coming from your vehicle.”

Previous Incidents

Similar issues were reported after Hurricane Ian in 2022, when Patronis stated that many EVs were disabled. EV fires following hurricanes were first reported after Superstorm Sandy in New Jersey in 2012.

Bottom Line

The potential for electric vehicles to cause fires when flooded by saltwater during hurricanes is a growing concern. The warnings and advice from Florida officials highlight the need for both residents and manufacturers to be proactive in managing this risk. What are your thoughts on this issue? Would you consider these warnings when purchasing an electric vehicle? Share this article with your friends and sign up for the Daily Briefing, which is delivered every day at 6pm.