FBinNY I thought it was 1 second per mile.

my 2 brothers and Dad were all 3 struck indirectly while mountain hiking in VT many years ago. The strike must have been to a tree or something else nearby, they all got it up through there feet and legs. Scared the cr*p out of them. They ditched everything metal including canteens and either a backpack or they removed the metal from from thr backpack, I forget. and they rushed down the mountain in record time. My sister and I and our Mom were taking it easy that day in town. Don't want to think about what a bad outcome would have done to the family.