1. Go inside immediately and stay inside your house or building.
2. Bring pets indoors if you can do so quickly.
3. Close all windows and doors.
4. Turn off heating and air conditioning units. (to help stop/slow outside air from coming in)
5. Close fireplace dampers.
6. Gather radio, flashlight, food, water and medicines.
7. Call 911 only if you have a true emergency. You will be advised when this dangerous condition has passed and it is safe to go outside and resume normal activities.