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 3/24/15

Patches of jellyfish are still present in finger inlets of South Sound. Water show signs of blooms only in confined, stratified bays. Otherwise, the surface waters are blue or carry dramatic loads of suspended sediment near rivers. (Read more)

Water Surface image here

Conditions in the Water Column for the Last Month:

Update 3/24/15

Starting in October, temperatures are the highest on our record since 1989. Oxygen and salinities are becoming lower. (Read more)

Tidal Effects image here

Water Masses for the Last Month at Selected Locations:

Update 3/24/15

Water around the mooring continues to be warmer and generally fresher than past several years. Seasonally, variability of each parameter remains minimal from January to March. (Read more)

Weather image here

Natural Influences for the Last Month:

Update 3/24/15

Air temperature and ocean conditions remain warm. Rivers are above normal, especially to the north. There has been almost four inches (10 cm) of rain during the past two weeks. (Read more)


Eyes Over Puget Sound

Ferry-Based Monitoring

Marine Flight Program

Algae Blooms

Nutrient and Oxygen Trends