Do this nowTap each step when done
- 1If you see a flash, don't look. Get on the ground, face down; cover your head and the back of your neck.
- 2Wait for the blast wave. Stay down at least 2 minutes.
- 3Get inside in under 10 minutes. Solid building within 5 minutes; if not, your home or apartment.
- 4Go to the shelter room with your pets: interior bathroom or hallway closet.
- 5Close doors and windows. Turn off the air conditioning that draws in outside air.
- 6Decontaminate anyone who was outside. Outer clothing in a sealed bag. Shower with soap, no conditioner.
- 7Stay inside at least 24 hours. Turn on the radio and send a text.
Don't
- Don't flee by car: it doesn't protect you.
- Don't go out looking for your family.
- Don't take potassium iodide without an official order.
- Don't use hand sanitizer to decontaminate.
Have ready
- Battery-powered or hand-crank radio with a NOAA band.
- 3 gallons (11.4 L) of water per person: 3 days.
- Zip bags, gloves, and clean clothes stored away.
- Water jugs and books next to the shelter room.
Key factPets that were outside: wash them with soap, wearing gloves.
More detail
Reviewed: Nov 2026 · Sources: Start here · Nuclear attack
