Lightning can strike up to several miles away from the thunderstorm.
Indoor Safety
When inside:
Avoid using the telephone (except for emergencies) or other electrical appliances.
Do not take a bath or shower.
Outdoor Safety
If caught outdoors:
Go to a safe shelter immediately! such as inside a sturdy building. A pickup truck or hard top automobile with the windows up can also offer fair protection.
If you are boating or swimming, get out of the water immediately and move to a safe shelter away from the water!
If you are in a wooded area, seek shelter under a thick growth of relatively small trees.
Avoid isolated trees or other tall objects, bodies of water, sheds, fences, convertible automobiles, tractors and motorcycles.
Remember, if you can hear thunder - you are close enough to be struck by lightning!