# Heat Advisory: Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Central Willamette Valley; East Central Willamette Valley; West Columbia River Gorge I-84 Corridor; Upper Hood River Valley; Central Columbia River Gorge I-84 Corridor; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills; West Columbia River Gorge - SR 14; Central Columbia River Gorge - SR 14 — retained record

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

Canonical: https://highsignal.app/data/records/a70d05cb05942dc2

[← 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 22:10 ingested 2026-07-22 08:28

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

## extract

Heat Advisory — Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Central Willamette Valley; East Central Willamette Valley; West Columbia River Gorge I-84 Corridor; Upper Hood River Valley; Central Columbia River Gorge I-84 Corridor; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills; West Columbia River Gorge - SR 14; Central Columbia River Gorge - SR 14
Severity: Moderate. Certainty: Likely.
* WHAT...Temperatures as high as 95 to 100 degrees.

* WHERE...Greater Portland/Vancouver Metro, Western and Central
Columbia River Gorge and the Hood River Valley, Lower Columbia
River and Cowlitz River Valleys, Central Willamette Valley, and
South Washington Cascade Foothills.

* WHEN...Until 11 PM PDT Wednesday.

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

* ADDITIONAL DETAILS...Smoke from fires outside of the region or
clouds moving into the
area could result in cooler daytime high temperatures than currently
forecast. There is around a 15-25% chance of thunderstorms on
Wednesday afternoon which may increase cloud cover and thus cause
temperatures to be slightly lower than forecast.

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The historical document was shared with another weather alert and cannot be attributed to this record.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