# Red Flag Warning: Canyon Grassland of Wallowa County; Southeast Washington Grande Ronde Valley — retained record

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

Canonical: https://highsignal.app/data/records/2053321ef42f57fd

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-21 11:57 ingested 2026-08-22 06:33

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

## extract

Red Flag Warning — Canyon Grassland of Wallowa County; Southeast Washington Grande Ronde Valley
Severity: Severe. Certainty: Likely.
...WIDESPREAD BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY
SATURDAY...

...HIGH-BASED SHOWERS AND THUNDERSTORMS TONIGHT AND SATURDAY
ALONG THE WASHINGTON CASCADES AND BLUE MOUNTAINS...

.An approaching low-pressure system will bring widespread breezy
westerly winds through the Cascade gaps, across the Columbia
Basin, and into portions of the Blue Mountains Saturday. Coupled
with low relative humidity, this will lead to critical fire
weather conditions. Moreover, high-based showers and
thunderstorms are forecast, with the best chances of abundant
lightning overnight through Saturday morning along the Washington
Cascades and Saturday afternoon for the northeast Blue Mountains.

The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 10 AM to 8 PM PDT Saturday.

* AFFECTED AREA...Fire Weather Zones 693 Canyon Grasslands of
Wallowa County and 693 Southeast Washington Grande Ronde
Valley.

* TIMING...From 10 AM to 8 PM PDT Saturday.

* WINDS...Southwest 10 to 20 mph with gusts of 20 to 30 mph,
shifting to the northwest 10 to 20 mph with gusts of 20 to 30
mph late afternoon and evening.

* RELATIVE HUMIDITY...10 to 20 percent late morning and afternoon.

* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.

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The historical document was shared with another weather alert and cannot be attributed to this record.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