The Advantage — and Danger — of Warning Time

Unlike earthquakes or flash floods, hurricanes typically provide days of advance notice. That's a significant advantage — but it also breeds complacency. People delay preparations, wait to see if the storm changes course, and then scramble at the last moment. Stores run out of supplies. Roads become gridlocked. The window for safe evacuation closes fast.

The most dangerous thing you can do with advance warning is wait. Use every day of lead time productively.

Understanding the Scale: Saffir-Simpson Hurricane Wind Scale

CategorySustained WindsTypical Damage
Cat 174–95 mphSome roof and siding damage; dangerous flying debris
Cat 296–110 mphMajor roof and siding damage; uprooted trees; power outages lasting days
Cat 3111–129 mphDevastating damage; structural damage to well-built homes; prolonged utility loss
Cat 4130–156 mphCatastrophic; most trees down; power loss for weeks to months
Cat 5157+ mphCatastrophic; most homes destroyed; area uninhabitable for weeks

Note: Wind category alone doesn't capture the full picture. Storm surge — the wall of ocean water pushed ashore — and inland flooding from rainfall are often more deadly than wind.

Before the Hurricane: 72+ Hours Out

Know Your Zone

Locate your hurricane evacuation zone on your local emergency management agency's map. These zones are defined by storm surge risk, not just wind. If you're in Zone A or Zone 1, you are typically among the first ordered to evacuate — take that seriously.

Prepare Your Home

  • Board up or install storm shutters on all windows and glass doors
  • Secure or bring inside all outdoor furniture, decorations, and anything that could become a projectile
  • Clear gutters and downspouts
  • Fill your vehicle's gas tank — stations may close or run out
  • Fill the bathtub with water (for flushing toilets if water service is disrupted)

Prepare Your Supplies

  • Drinking water: at minimum one gallon per person per day for at least 7 days
  • Non-perishable food for 7+ days (a step up from the 72-hour go-bag standard)
  • Battery banks, flashlights, candles, and extra batteries
  • A generator (if you have one) with fuel stored safely
  • Cash in small bills
  • All medications, medical equipment, and copies of prescriptions

The Evacuation Decision

If you live in a mobile home, a flood-prone area, an evacuation zone, or your home cannot withstand a Category 3+ storm: evacuate when ordered, and consider leaving before the order if you have the means.

If you choose to shelter in place, identify the safest room in your home — typically an interior room on the lowest floor away from windows. Have your supplies accessible and be prepared for power loss lasting days to weeks.

During the Storm

  • Stay indoors and away from windows throughout the storm
  • Do not go outside during what may feel like a calm period — you may be in the eye; the storm will resume
  • Monitor NOAA Weather Radio or a battery-powered radio for official updates
  • If flooding begins inside your home, move to the highest floor — do not shelter in an attic where you could become trapped
  • Never walk or drive through floodwater — as little as six inches of fast-moving water can knock you down; two feet can carry away most vehicles

After the Storm

The immediate aftermath of a hurricane carries its own serious hazards:

  • Wait for the all-clear — do not venture out until officials confirm it's safe
  • Avoid downed power lines — treat every line as live and lethal
  • Do not use generators indoors — carbon monoxide poisoning causes deaths after nearly every major storm
  • Check your home for structural damage before entering after an absence
  • Document all damage with photos and video before beginning any cleanup, for insurance purposes
  • Floodwater is hazardous — it contains sewage, chemicals, and debris; wear waterproof boots and gloves if you must enter it

Register and Get Support

After a declared federal disaster, register with FEMA (DisasterAssistance.gov) for potential assistance. Contact your insurance company as soon as possible. Check on neighbors, especially elderly or disabled individuals who may need help.