Well that was briefly fun. At least 1/2 of the metro area saw lightning and heard a few rumbles in the distance…a few of you had an excellent show with lots of loud boomers.
From 9:30-11pm thunderstorms fired up in Washington County and then across the south metro down into Clackamas County. It appears it is most likely over at this point. This is the radar image from earlier:
The movement was interesting as they were stationary at first and then drifted SOUTH or at least propagated that direction. It wasn’t the south to north we often see in these summer events. It appears that was due to us being on the backside of the upper-level disturbance as it passes through Oregon. I see a couple spots in West Linn & Oregon City picked up around .80″ rain, plus viewer Steve Huffman sent in this pic of 3/4″ size hail in the Farmington area south of Hillsboro
There were also a few strong storms around Stevenson/Carson and the Hood River Valley earlier. This pic is from Gabor Gardonyi
Unless we get a surprise shower or thick drizzle late tonight or tomorrow morning, it appears this event will leave Portland dry. It’s back to a major marine push tomorrow, then a thinner marine layer over the weekend. Summer 2018 rolls on…
Chief Meteorologist Mark Nelsen