Hurricane evacuation driving: how to leave safely and avoid floodwater
How to plan your route, pack the car, leave early and stay out of floodwater
When a hurricane threatens, millions of people get in their cars at the same time. Highways clog. Gas stations run dry. Rain bands start before the storm arrives. Even in ordinary years, crashes in rain kill about 2,800 people a year in the United States [4]. The drive out can become one of the most dangerous parts of the storm.
Florida’s emergency managers put it simply: storm surge is the greatest threat to life [1]. Getting out of a surge zone in time, and avoiding floodwater on the way, saves lives. This guide covers how to plan, pack and drive an evacuation safely.
Before hurricane season
Know your zone. Find out if your home is in an evacuation zone. Your county emergency management website has a map. If you live in a zone, a low flood area or a mobile home, plan to leave when told [1].
Keep the tank half full. Florida’s “Halfway Full” campaign urges drivers to keep at least half a tank all season, so they can leave without waiting in long gas lines [1]. For electric vehicles, it suggests keeping the battery between 50 and 80 percent, following your manual [1].
Plan where you will go. A friend’s or relative’s home outside the zone, a sturdier home inland or a shelter. Often the safe place is only tens of miles inland [1]. Shorter trips mean less time stuck on the highway.
Prepare the car. Check tires, wipers, lights, brakes and fluids. Make sure the spare has air.
Pack the car
Checklist from Safety Behind the Wheel Foundation
- Water, at least a gallon per person per day, and food that keeps
- Medicines, glasses and medical supplies for at least a week
- Phone chargers, a power bank and a battery radio
- Important papers in a waterproof bag
- Cash, since card readers fail when the power is out
- First aid kit, flashlight and spare batteries
- Pet food, leashes, carriers and records
- Paper maps of your route
When to leave
Leave as early as you can. Go when the order comes, or sooner. Early trips have less traffic, more gas and better weather. Waiting until the storm is close means driving in heavy rain and high wind.
Drive in daylight when possible. Flooded roads, debris and downed lines are much harder to see at night.
Follow official routes. Use the evacuation routes posted by your state. Some states open contraflow lanes, where all lanes of a highway run away from the coast. Follow signs and officers’ directions.
Avoid shortcuts. Back roads may flood first and may not be cleared.
On the road
- Expect slow traffic. Bring patience, water and snacks. Use rest areas when you can.
- Watch the wind. Vans, trucks, RVs and vehicles towing trailers are pushed around by gusts. Slow down and grip the wheel with both hands.
- Stay informed. Listen to local radio or official alerts for road closures.
- Do not drive tired. Long evacuation drives cause fatigue. Trade drivers or stop.
- Never let the tank or battery run low. Fill up whenever you have the chance.
Turn around, don't drown
The National Weather Service warns that more than half of flood drownings happen when a vehicle is driven into hazardous water [2]. Floodwater is deeper and faster than it looks. The road under it may be gone.
Comparison compiled by Safety Behind the Wheel Foundation
How much water it takes to move a vehicle
| Water depth | What can happen |
|---|---|
| 6 inches | Reaches the bottom of most cars; can cause loss of control or stalling |
| 12 inches | Can float many vehicles |
| 2 feet of moving water | Can sweep away most vehicles, including SUVs and pickups |
Source: National Weather Service [2].
Warning: Never drive into water covering a road, even if it looks shallow or others made it through. If your car stalls and water is rising, get out and move to higher ground if it is safe. If water is rising inside the car, unbuckle, open or break a window and get out.
After the storm
The danger does not end when the wind dies down. Roads stay hazardous for days.
- Wait for the all clear before going home. Roads may be blocked or washed out.
- Treat dark traffic signals as an all way stop.
- Stay far from downed power lines. Assume every line is live. Do not drive over them.
- Watch for debris, nails and broken glass that cause flat tires.
- Do not drive through standing water. It can hide washouts and sharp debris.
- Check flood damaged cars before driving. If your car sat in floodwater, do not start it. Have it inspected. An electric vehicle that sat in saltwater can catch fire later, so keep it outside and away from buildings [3].
Frequently asked questions
Should I evacuate if I am not ordered to?
If you live in a mobile home, a flood prone area or have medical needs that need power, consider leaving early even without an order. Follow local officials’ advice.
Is it safer to stay in my car during the storm?
No. A car is not a safe shelter in a hurricane. Floodwater and falling trees make cars dangerous. Get to a sturdy building before the storm arrives.
How far should I go?
Often tens of miles inland, out of the surge zone, is enough [1]. Going hundreds of miles can mean hours in traffic as the storm approaches.
Related articles
Sources and further reading
- 1Florida Division of Emergency Management. “If You’re Halfway Full, You’re Halfway There.” floridadisaster.org/planprepare/halfwayfull
- 2National Weather Service. “Turn Around Don’t Drown.” weather.gov/tsa/hydro_tadd
- 3The Trucker. “Submersion in saltwater creates risk of fire for electric vehicles.” September 2024. thetrucker.com/…/submersion-in-saltwater-cre…
- 4Federal Highway Administration. “How Do Weather Events Impact Roads?” ops.fhwa.dot.gov/weather/roadimpact.htm
This article reflects the safety priorities of severe weather preparedness and emergency evacuation. It is general education, not emergency instructions. Always follow orders from local officials. Reviewed November 2026.
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