# Heat Advisory: Foothills and Valleys of Snohomish and Northern King Counties; Foothills and Valleys of Central King County; Foothills and Valleys of Pierce and Southern King Counties; Downtown Everett / Marysville Area; Shoreline / Lynnwood / South Everett Area; Eastside; City of Seattle; Lowlands of Pierce and Southern King Counties; Eastern Kitsap County — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/f7c71a5a71abfe27

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-21 15:19 ingested 2026-07-22 08:29

[original source ↗](http://www.weather.gov/)

## extract

Heat Advisory — Foothills and Valleys of Snohomish and Northern King Counties; Foothills and Valleys of Central King County; Foothills and Valleys of Pierce and Southern King Counties; Downtown Everett / Marysville Area; Shoreline / Lynnwood / South Everett Area; Eastside; City of Seattle; Lowlands of Pierce and Southern King Counties; Eastern Kitsap County
Severity: Moderate. Certainty: Likely.
* 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.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.