Storm damage on roofs typically occurs in two ways, hail damage or wind damage.

This roof has both hail and wind damage. The front side of the roof is in terrible shape, and the back of the roof is in acceptable condition.

The rich cabs here have blown off and been replaced over the years. The ridge vent is part of the reason that there are so many windblown shingles. The other reason is because of past hail Damages.