Preparedness for tsunami and earthquake risk is adequate for hurricane risk. The only phenomena not accounted for is high winds and the only form of preparation I can think of there is housing code that requires roofs to be tied down to supporting walls. Having been through many hurricanes including two category 5 hurricanes that downgraded to 4 by the time they reached me, I can't imagine that after a hurricane crosses the olympic peninsula it would still be much of a concern for roofing. For those on the coast the calculus may be different.