When a very young man I did a couple summers as a forest fire fighter (dangerous as hell)... it is usually the dried out brush on hillsides that take a lightning strike (or carelessly discarded cigarette) and start to burn... add a little wind and you're off to the races. Once it gets going tree tops (no matter how green) will burn and pine forests are extremely susceptible to having the fire jump from tree to tree like a book of matches going off.I wonder how many of those fires I read about start in or spread due to homeowner flower beds and such?
Best thing you can do is keep pine trees 200 ft away (others 100 ft), clear the excess brush near the house, no wood fencing, etc... make it hard for the fire to catch.