After the tornado, follow these steps:
Keep your family together and wait for emergency personnel to arrive.
Carefully render aid to those who are injured.
Stay away from power lines and puddles with wires in them; they may still be carrying electricity.
Watch your step to avoid broken glass, nails and other sharp objects.
Stay out of any heavily damaged houses or buildings; they could collapse at any time.
Do not use matches or lighters, in case of leaking natural gas pipes or fuel tanks nearby.
Remain calm and alert, and listen for information and instructions from emergency crews or local officials.
Source: National Weather Service