1996 Pacific Northwest Floods
A combination of heavy rain and warm temperatures melting mountain snowpacks triggered widespread flooding across Washington, Oregon, and Idaho. Major rivers, including stretches of the Columbia and tributaries near Puget Sound, overflowed, causing hundreds of millions of dollars in damage and federal disaster declarations.
Communities spent months repairing washed‑out roads, damaged homes, and critical infrastructure.
The event spurred upgrades to flood-control works and remains a benchmark for regional flood planning.
1996 shows how warm, rain‑on‑snow events can suddenly supercharge Northwest rivers—exactly the fear with today’s warm atmospheric river.
