Flood History
Hurricane Harvey Flooding Lessons: Extreme Rain, Urban Flooding, Reservoirs, and Recovery
Lessons from Hurricane Harvey rainfall flooding, including stalled storms, urban flooding, reservoirs, flood maps, and long recovery.
Quick answer: Harvey showed how a slow tropical system can produce extreme rainfall flooding far beyond the coastline.
Stalled rainfall
A slow-moving storm can keep feeding heavy rain over the same region for days.
Rainfall totals can become historic even after wind weakens.
Urban flooding
Pavement, drainage limits, bayous, reservoirs, and development shape flood impacts.
Flood risk is not limited to mapped flood zones.
Recovery lesson
Flood recovery involves housing, mold, transportation, insurance, and mental stress.
Rainfall disasters can be long-duration events.