Portland, OR Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Portland.

Use the Radar Maps link provided to understand the trajectory of a storm.

Hydrologic Outlook issued September 15 at 2:50PM MDT by NWS Boise ID

ESFBOI Showers will become more numerous across the region Monday and Tuesday with isolated thunderstorms expected. Some showers and thunderstorms may produce moderate to heavy rain. Areas burned by recent wildfires that are impacted by higher intensity rainfall will be susceptible to mudslides and debris flows, including State Highway 21 in the Wapiti Fire area. Persons in or near recent burned areas should monitor weather conditions and forecasts. Mudslides and debris flows in burned areas can occur with little to no warning.