After a wildfire, flood risk dramatically increases. When soil burns, it starts to repel water rather than soaking it up, so when it rains, water runs off faster and in greater amounts. This can cause floods that are worse than normal. Even homes and properties that have never flooded before may now be at risk.

Rushing floodwaters pick up rocks, soil, trees, and boulders, carrying them downhill at high speed, causing debris flows. These debris flows are dangerous on steep hillsides and in areas below them. People living downhill from burned areas are particularly at risk.

Residents and communities recovering from a fire must be aware of these hazards that can pose a risk to life and property anywhere from weeks to years after the burn.

Current areas at risk from debris flows can be seen on the WA DNR Debris Flow Dashboard.

For further flood and debris flow safety information, visit the Safety page.