Cowlitz River Levels
June 2 2023
33,917 ACRE-FT
Discharge Volume Today
-2770.0 cfs (-13.94%) since yesterday79.59% of Normal • 4 Streamgauges
Total streamflow across the
Cowlitz River
was last observed at
17100
cfs, and is expected to yield approximately
33917
acre-ft of water today; about 80%
of normal.
Average streamflow for this time of year is
21486 cfs,
with recent peaks last observed at
95,120 cfs
on
2020-02-07.
River Summary: The Cowlitz River is a 105-mile-long river in southwestern Washington, originating from the glaciers of Mount Rainier National Park. Historically, the river was used for fishing and transportation by indigenous peoples. Today, it is a major source of hydroelectric power, with several major dams and reservoirs along its course, including Mayfield Dam and Riffe Lake. These dams have greatly affected the river's hydrology and the surrounding agricultural land by controlling flooding and providing irrigation. The Cowlitz River is also a popular recreational destination, with opportunities for fishing, boating, and hiking in the surrounding forests and mountains. The river is home to several species of salmon and steelhead, and efforts are being made to restore and protect their populations.

Last Updated | 2023-06-01 |
Streamflow | 17,100.0 cfs |
Percent Normal | 79.59% |
Maximum |
95,120.0 cfs
2020-02-07 |