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 7/28/14

Abundant organic surface debris in Hood Canal, Padilla Bay, Eld Inlet, Carr Inlet, Port Madison, and Sinclair Inlet. Red-brown blooms in all bays of South Sound, Discovery Bay, and regions of Bellingham Bay. Different blooms in Skagit Bay, Padilla Bay, and Sinclair Inlet. Jellyfish numerous in all southern South Sound Bays. (Read more)

Water Surface image here

Conditions in the Water Column for the Last Month:

Update 7/28/14

In early 2014, colder, saltier conditions developed in Puget Sound with lower oxygen in Whidbey Basin, Central and South Sound. Hood Canal remains cold but Puget Sound-wide temperatures are now warmer and less salty. (Read more)

Tidal Effects image here

Conditions at Tidally Influenced Locations for the Last Month:

Update 7/28/14

In the Mukilteo moorings, two dominant water masses are observed. This year, temperature is cooler and salinity is lower. (Read more)

Weather image here

Weather and Coastal Conditions for the Last Month:

Update 7/28/14

The past several days have been warmer and sunnier than normal with higher than normal river flows from the Skagit and Nisqually rivers. Winds are generally light and from the north. (Read more)


Eyes Over Puget Sound

Ferry-Based Monitoring

Marine Flight Program

Algae Blooms

Nutrient and Oxygen Trends