Jacksonville Hurricane Safety and Evacuation Zones

Jacksonville Hurricane Safety and Evacuation Zones

Most flood deaths happen in vehicles. Just 12 inches of fast-moving water can carry away a small car, and 18 to 24 inches can sweep away larger SUVs and trucks. Turn around, don't drown.

Jacksonville's hurricane risk works differently than most of Florida. The St. Johns River flows north into the Atlantic, so a storm can push ocean water up-river while dumping heavy rain across the city. Add high tide and you get fast-rising, widespread flooding, sometimes far from the beaches.

Below is a Jacksonville-specific guide: clear steps, practical checklists, and resources you can trust. If you're new to the area, our guide to moving to Jacksonville covers flood zones and insurance costs before you buy.

Start Here: Know Your Risks, Alerts, and Zone

Find your evacuation zone

  • Look up your address on the City's official zone finder. Screenshot it. Share it with your household.
  • Jacksonville's zones are based on storm surge, rainfall, and isolation, not just storm category. Evacuation guidance changes by storm. Don't assume last time equals next time.

Get official alerts

  • AlertJax sends local, time-sensitive push, SMS, and email updates covering evacuations, road closures, and boil-water notices. Enroll now, it's free.
  • The JaxReady app is your hub for evacuation info, local hazards, and the City's Preparedness Guide. Download it and enable notifications.

Jacksonville's flood setup

  • During coastal storms, ocean surge backs up the St. Johns, slowing drainage and increasing river and creek flooding from downtown to neighborhood canals, especially at high tide.

Build Two Kits: A Stay Kit and a Go Bag

Water and food

  • Water: at least 1 gallon per person per day. Florida recommends stocking for 3 to 7 days. Many locals aim for 7.
  • Food: non-perishables for several days, plus a manual can opener.

Power and communications

  • Battery or hand-crank radio that receives NOAA Weather Radio alerts.
  • Flashlights, extra batteries, and portable chargers.

Health and documents

  • First-aid kit and a two-week supply of medications. Keep copies of IDs, insurance, prescription lists, and key contacts in a waterproof pouch.

Pets

  • Proof of vaccination, collar and ID, crate, and 3 to 7 days of pet food and water. Some shelters are pet-friendly, but requirements apply.

Special medical needs

  • If you rely on electricity-dependent equipment like oxygen or CPAP, register now for the City's Special Medical Needs program. Re-registration is annual.

Hurricane Timeline: What to Do and When

Before hurricane season

  • Know your zone and evacuation routes. Set a family meet-up plan.
  • Buy flood insurance early. There's typically a 30-day waiting period before NFIP coverage starts, with limited exceptions. Don't wait for a named storm.
  • Harden your home: pre-cut and label plywood or install rated shutters, and reinforce garage doors, a common failure point. Do not tape windows. It doesn't prevent breakage and creates larger, more dangerous shards.

As a storm approaches

  • Top off gas, cash, medications, and phone power banks.
  • Check JaxReady and AlertJax for shelter announcements and sandbag info. Locations change by storm, so don't go until the City announces openings.
  • Move cars from low spots, elevate valuables and critical electronics, and clear drains and gutters.

If officials issue an evacuation for your zone

  • Leave early, especially if you live in zones A through C, a mobile home, a low-lying or flood-prone area, or near tidal creeks. Use major routes and avoid flooded shortcuts.
  • Going to a shelter? Locations vary each year and open only when announced. General population shelters run with Red Cross support. Pet-friendly locations are limited. Service animals are allowed at all shelters.

If you stay home and you're not in an evacuation zone

  • Pick a safe interior room with no windows on the lowest level. Keep your kit, sturdy footwear, and a charged power bank within reach.
  • Know how to quickly shut off water and electricity if authorities tell you to.

Life-Saving Rules During the Storm

Flooding and driving

  • Turn around, don't drown. Never walk, wade, or drive through floodwater.
  • 6 inches of fast-moving water can knock an adult off their feet.
  • 12 inches can carry away a small car. 18 to 24 inches takes most large SUVs and trucks.

Generators and carbon monoxide

  • Use generators outside only, at least 20 feet from doors, windows, and vents, with exhaust pointed away from the home. Never in a garage, porch, or carport. Install working carbon monoxide (CO) alarms with battery backup.

Power lines and utilities

  • Treat every downed line as energized. Stay away and call 911 or JEA. Don't approach vehicles tangled in lines.

After the Storm: The First 48 Hours

Re-entry and cleanup

  • Keep monitoring AlertJax for re-entry, boil-water, and curfew guidance.
  • Carbon monoxide safety still applies. Many post-storm deaths happen after the wind stops. Keep generators outside and 20 or more feet from openings.

Food and water safety

  • Keep the fridge and freezer closed. Food stays safe roughly 4 hours in the fridge and 48 hours in a full freezer, or 24 hours if half-full. When in doubt, throw it out.

Documenting damage

  • Photograph water lines, roof damage, and contents before cleanup. If you have flood insurance, know that changes and renewals also take time. Coordinate with your agent as soon as possible.

Jacksonville-Specific Flood Tips

  • Watch river gauges and NWS Jacksonville coastal flood updates. River flooding can peak after the storm as surge and runoff work through the basin.
  • Remember how the system behaves here: storm surge backs up the St. Johns, stacking with heavy rain and high tide to flood neighborhoods well inland. Plan parking and belongings accordingly.
  • Only about 8% of Duval County households carry flood insurance, and more than 40% of local flood claims come from Zone X, where coverage isn't federally required. Being outside a mapped flood zone is not the same as being safe from flooding.

Pet and Special-Needs Planning

  • Pet-friendly shelters are limited. Bring vaccination records, a leash, a crate, and your own supplies. Some animals may be housed separately from owners, and reptiles aren't accepted. Service animals are always permitted.
  • Special Medical Needs: pre-register with the City if you depend on electricity or medical equipment. Shelter lists and transportation support are for registered clients only.

Myth Busting

  • Taping windows helps? No. It makes bigger, sharper shards. Use rated shutters or properly sized plywood instead.
  • Driving through a little water is fine? Also no. Most flood deaths happen in vehicles, and water depth and road damage are impossible to judge from behind the wheel.

Quick-Glance Checklists

Go bag, one per person

  • ID, cash, cards, medications for two weeks, phone and charger, flashlight and batteries, snacks and water, copies of documents, a change of clothes, basic first-aid, local maps, and a pet kit if applicable.

Home-stay kit

  • Water at 1 gallon per person per day for 3 to 7 days, non-perishable food, can opener, radio, batteries, power banks, sanitation supplies, heavy-duty trash bags, work gloves, plastic sheeting and duct tape for leaks rather than windows, and basic tools.

Resources to Keep Handy

Know your zone, enroll in alerts, buy insurance early, and respect water and generators. Set a 30-minute block this week to prep your kits.

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