Oregon, Washington Heat Advisory | Effective 05/01/2026 10:37
* WHAT...Temperatures up to 90 degrees F expected. Significant
cooling expected overnight.
* WHERE...Greater Vancouver Metro, Lower Columbia River and Cowlitz
River Valleys, Inner Portland Metro, and East Portland Metro.
* WHEN...From 8 AM to 11 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...There is around 5% chance of high
temperatures of 95 degrees or greater in urban areas around the
Portland-Metro area. Overall Moderate HeatRisk with relieving