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Peak Streamflow Information


Snow-Stream Comparison graphs on this page are updated between the beginning of snow melt and throughout the snow melt season to monitor peak streamflows.

Streamflow graphs are typically updated monthly, and projections are made after the snowmelt peak has occurred.

Peak Streamflow for Individual Basins:

Streamflow Graphs Statewide Summary:

Panhandle Region

Clearwater River Basin

Salmon River Basin

Payette and Boise River Basins

Wood and Lost River Basins

Upper Snake River Basins

Southside Snake River Basins