Originally Posted by RichR
Other than going to an enclosed building like a campground activity building your best place is your car or truck. An Airstream trailer may be the safest RV because of the total metal skin. Lightning flows on the outside of metal enclosures.
Metal or metal frame RV are just as same as a car. Fiberglass and wooden frame RV I agree, TV or building would be better. Remember, lightning takes the path of least resistance to the ground.... you don't want to be in it's way.
Google videos for lightning strikes plane or car, some impressive videos
Also, here's an RV safety video: