Severe Weather


The typical thunderstorm is 15 miles in diameter and lasts an average of thirty minutes. Florida has more thunderstorms and lightning strikes each year than anywhere else in the United States. Florida also leads the nation in deaths and injuries from lightning, averaging 10 deaths and 30 injuries each year. Although all thunderstorms are dangerous, produce lightning, and can be lethal, about 10% produce dangerous winds or hail that will likely exceed thresholds known to cause bodily harm or significant damage to well-built structures. These are known as severe thunderstorms.


  • Know your area’s risk
  • Sign up for weather alerts
  • Identify sturdy buildings you can shelter in
  • Monitor and cut down/trim trees that could fall on your home during a storm
  • Secure outside furniture
  • Consider buying surge protectors to protect your electronic devices.


  • Hear Thunder? Find a sturdy building to take shelter in.
  • Monitor weather reports/alerts and stay inside.
  • If on the water, go to land and find a shelter to take cover.
  • Avoid flooded areas.


  • Avoid and report downed power lines and trees
  •  Continue monitoring weather alerts and instruction from your local authorities to stay safe.

Table of Contents

It is important to know which hazards may affect your area and to prepare accordingly. From riptides to hurricanes, make sure to educate yourself to keep you and your family safe! For a list of hazards in Nassau County, click HERE.

Prepare a Go-Kit

  • Being prepared means having the supplies you may need in case of an emergency or disaster. Make sure to prepare a Emergency Kit that can last you at least 3 days for an evacuation and 2 weeks if sheltering at home. 
  • Basic Kit – This includes things like water (one gallon per person, per day), non-perishable food, flashlights, and extra batteries. For a more comprehensive list, go to
  • Make sure to bring supplies, like games, puzzles, or other activities for children.
  • Pet considerations 
  • Senior Considerations

Shelter Plan

  •  Mass Care Shelters – Sign up for alerts, visit our website, and follow our social media for open shelter locations during an emergency.
  • Shelter in Place – If there is severe weather outside or your local authorities have notified your area to shelter in place, lock your doors, close windows, and go to an interior room. 
  •  Register for Special Needs Sheltering – The Special Medical and Transportation Needs Program is designed for those who:
    1. must seek refuge in an emergency public shelter during an evacuation, AND
    2. have special medical/functional needs OR require government transportation assistance to a public shelter.
  • Pet Sheltering – No registration is needed. All pets must have proof of vaccination and a Nassau County license, be properly crated or caged and be maintained by their owners. Animals will be housed in a separate room from their owners.

Evacuation Plan