Snow2flow

Understand Implications of Forest
Management On Stream Flows
In The Upper Columbia Basin

Launch
evergreens icons

Direct Forest Restoration Activities to

Retain
Snowpack

Manage
Water Supply

Manage
Timing

FOR

Salmon Recovery Support


This free, online decision support tool helps forest and stream restoration practitioners support salmon recovery across North Central Washington. The easy-to-use website informs salmon recovery by assessing the effects of forest restoration activity on snowpack retention and subsequent water supply and timing.


watershed illustration

About the App

Water availability, especially during the late summer, affects salmon populations in the Upper Columbia. One of several approaches to increasing the amount of water available for instream flow in the late summer is by increasing the capture and duration of storage of mountain snowpack. This tool builds on Pacific Northwest National Laboratory’s Distributed Hydrology Soil Vegetation model (DHSVM) to identify both how forest restoration activity affects downstream flows, and where to target upstream restoration activities to benefit specific in-stream locations.