When the warning is sounded:

• Cease outdoor activities.
• Seek shelter inside a building or automobile.

Avoid:

• Open areas; places near water, trees, metal fences, overhead wires or power lines; or elevated ground or open vehicles.
• Use of radios or cellular phones.

Remember

• The best source of information during a thunderstorm is your local news, radio stations and any NOAA weather radio.
• The 30/30 lightning safety rule: Go indoors if, after seeing lightning, you cannot count to 30 before hearing thunder. Stay indoors for 30 minutes after hearing the last clap of thunder.