Just like if you live in a fire hazard area, it's cheaper to spend a few bucks clearing the vegetation away from your house, investing in a metal roof, etc. When my asphalt roof wore out, I had it replaced with a metal one. Very happy with it.
If you choose to live on a flood zone, either put your house on stilts, or on a mound, or accept that it's going to get flooded. My dad lived in the midwest, and consulted flood maps when looking for a house. Never got flooded. Washington is subject to earthquakes, and I hired a soil geologist to screen the property for slide risk.
If a large tree is close to your house on the windward side, hire an arborist to trim back the "sail" on it, or just have it removed.