Pendleton, Oregon – Isolated thunderstorms could rumble across Oregon starting noon Sunday, bringing gusty winds, lightning, and brief downpours through late Monday night, with Central and Eastern regions most at risk.
According to the National Weather Service in Pendleton, storms capable of producing cloud-to-ground lightning, small hail, and gusty outflow winds are possible area-wide beginning Sunday afternoon. The highest chances are over the Cascade crest and Central Oregon, where storm likelihood ranges from 10–25% Sunday afternoon, tapering to 5–15% by night.
By Monday, the storm focus shifts east. Thunderstorms remain possible all day, with peak activity expected from noon to 10 p.m., especially in the Blue Mountains. While Monday morning holds only a 5–10% chance of storms, the probability climbs to 10–25% during the afternoon and evening hours.
Residents across the region should stay alert for changing conditions and seek shelter if thunder is heard. The National Weather Service urges people to avoid open areas during lightning and wait 30 minutes after the last thunderclap before resuming outdoor activities.
Storm risks are rated 2 out of 5 (Minor), but more alerts could be issued if conditions intensify.
