Station Name: DUWAMISH R AT E MARGINAL WAY BR AT DUWAMISH, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 20 feet

Nearest Address:
11500 E Marginal Way S
Tukwila, WA 98168
King County

GPS Coordinates: 47.50050556, -122.2881417

Nearby Water Temperatures

Heat Advisory issued July 21 at 3:19PM PDT until July 22 at 11:00PM PDT by NWS Seattle WA

Effective: Tue July 21, 2026, 3:19 PM
Expires: Wed July 22, 2026, 3:30 AM

* WHAT...Hot conditions with high temperatures in the mid to upper 90s expected and low temperatures from 60 to 65 degrees. This will pose a major risk of heat-related illness. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Foothills and Valleys of Central King County, Foothills and Valleys of Pierce and Southern King Counties, Foothills and Valleys of Snohomish and Northern King Counties, Lowlands of Pierce and Southern King Counties, and Shoreline / Lynnwood / South Everett Area. * WHEN...Until 11 PM PDT Wednesday. * IMPACTS...Extreme heat will significantly increase the risk of heat-related illnesses for much of the population, especially those who are heat sensitive and those without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Areas immediately along the water will experience cooler daytime high temperatures.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.