# Heat Advisory: Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Eastern Columbia River Gorge of Washington; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington — retained record

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

Canonical: https://highsignal.app/data/records/8a416fcb983df191

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-20 15:16 ingested 2026-07-21 08:28

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

## extract

Heat Advisory — Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Eastern Columbia River Gorge of Washington; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington
Severity: Moderate. Certainty: Likely.
* WHAT...Hot conditions with temperatures up to 100 to 103 degrees
expected, with 101 to 105 degrees in the Columbia Basin.  This
will pose a moderate to major risk of heat-related illness.

* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Foothills of the
Northern Blue Mountains of Oregon, Yakima Valley, and Foothills of
the Blue Mountains of Washington.

* WHEN...From 11 AM Tuesday to 9 PM PDT Thursday.

* IMPACTS...Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...The heat will begin on Tuesday, with
widespread moderate and locally major HeatRisk.

Wednesday looks to be the hottest day, with Major HeatRisk across
the Columbia Basin, Yakima Valley and portions of the Gorge and Blue
Mountain Foothills.

Thursday will also see widespread moderate HeatRisk and locally
major HeatRisk, mainly across the Columbia Basin.

Smoke from area wildfires could end up affecting how hot
temperatures get.

## 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The historical document was shared with another weather alert and cannot be attributed to this record.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.