* WHAT...Hot conditions with afternoon high temperatures of 90 to 100 degrees expected, except 100 to 110 in Hells Canyon. This will pose a moderate to major risk of heat-related illness.
* WHERE...Blue Mountains of Oregon and Washington, Wallowa County, Ochoco-John Day Highlands, Simcoe Highlands, and Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 10 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.