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 6/23/14

Large organic mats in Hood Canal, Padilla Bay and Lay Inlet. Strong red-brown bloom in Discovery Bay and East Sound and parts of Georgia Basin. Sediment rich water north of San Juan Islands. Jelly fish are increasing in numbers. (Read more)

Water Surface image here

Conditions in the Water Column for the Last Month:

Update 6/23/14

In early 2014, colder, saltier conditions developed throughout Puget Sound with lower oxygen in Whidbey Basin, Central and South Sound. Hood Canal remains unusually cold. (Read more)

Tidal Effects image here

Conditions at Tidally Influenced Locations for the Last Month:

Update 6/23/14

In the Mukilteo moorings, water masses are distinct, temperature is similar to last year, and salinity and dissolved oxygen are lower than the last few years. (Read more)

Weather image here

Weather and Coastal Conditions for the Last Month:

Update 6/23/14

Onshore winds have been keeping the Puget Sound lowlands cool and cloudy, but sunlight and warmer temperatures returned before the flight. (Read more)


Eyes Over Puget Sound

Ferry-Based Monitoring

Marine Flight Program

Algae Blooms

Nutrient and Oxygen Trends