A line of severe storms that briefly clipped the Door Peninsula Saturday morning caused problems for much of the day. Straight-line winds produced by the system were strong enough to knock over several area trees. Rocky topography in northern Door County keeps pines and other plants from anchoring into the ground with a sturdy root system. The Sheriff’s Office shared a photo on Facebook of Cottage Row Road in Fish Creek. It was impassable with reports coming in from several other locations of similar conditions. More severe weather is possible until Sunday morning.