Marine Water photo

Marine Water Quality Monitoring

Estuaries like the Puget Sound have naturally large differences in water quality. We monitor marine water in Puget Sound, Grays Harbor and Willapa Bay using seaplanes, ferries and moored instruments.

Our Products at a Glance: (navigate, stop and click slide show )


Marine Conditions at a Glance:

Water Surface image here

Conditions at the Water Surface for the Last Month:

Update 9/16/14

Warm water in Strait of Georgia, Whidbey Basin, and finger inlets of South Puget Sound.Numerous and large patches of jellyfish seen in finger inlets of South Sound and East Sound. Red-brown blooms remain strong in smaller bays. (Read more)

Water Surface image here

Conditions in the Water Column for the Last Month:

Update 9/16/14

As summer ends, temperatures are high in South Sound. Low dissolved oxygen levels are widespread in Puget Sound, yet remain high in Hood Canal. (Read more)

Tidal Effects image here

Water Masses for the Last Month at Selected Locations:

Update 9/16/14

At Mukilteo, continuous water temperature fluctuated and salinity declined.  Upper mooring measured strong tidal effects. (Read more)

Weather image here

Natural Influences for the Last Month:

Update 9/16/14

Sunshine and warm temperatures continue. The Fraser River flow is below normal, Pacific Decadal Oscillation Index and upwelling anomalies are above normal. (Read more)


Eyes Over Puget Sound

Ferry-Based Monitoring

Marine Flight Program

Algae Blooms

Nutrient and Oxygen Trends