8pm: Thunderstorms Skip Over Metro; Mainly Rain Tonight

September 5, 2013

8pm Thursday…

Well, if you wanted to see big thunderstorms here in the Portland Metro area…it didn’t happen.  As the strong line of storms moved north, it weakened dramatically.  There was only one lightning strike in Multnomah county and one lonely strike in Clark county.


But then look at what happened as it headed farther north into SW Washington!  Crazy thunderstorms with hundreds of strikes from Kalama north…same thing from Vernonia north in the Coast Range.  In fact Troutdale never even had measurable rain!  On the positive side, at least that avoided a metro commute meltdown from flooding rains.


Look at Salem…almost 1.5″, and there were reports from Albany and Turner of almost 3″.

The severe thunderstorm watch for areas east of the Cascades has been dropped as the big storms moved off to the north.  The largest hail size reported was “golfball” in Bend, but radar at one point showed hail as large as chicken eggs in Sherman County, south of Wasco.

For the rest of the night, it’s a mainly rain event with just a few flashes or rumbles possible.  As the flow turns more westerly, rain should become heaviest on the east side of the metro area.

Chief Meteorologist Mark Nelsen



4pm…Flooding Rain heading towards Salem

September 5, 2013

Look at the radar estimate of rain the last hour or two as the band of thunderstorms moves north up the Willamette Valley!


I see it’s confirmed by a home weather station (here) near Turner recording just under 2″ in 50 minutes!  Over 2″ from N. Albany up through the Turner area estimated on the map.  The shield of rain should continue moving north and eventually get to the Portland Metro area at some point this evening.

3pm Update, Crazy Lightning and Big Hail

September 5, 2013

3pm Thursday…

Quite a lightning storm in the central Willamette Valley right now:


All those strikes (219!) are within the last 30 minutes!  It’s all quiet so far today up in the metro area.

The first big and severe thunderstorms are developing east of the Cascades at this hour.  Large hail (1″) reported SW of Bend and that storm is heading north towards Redmond and Madras.

Keep a close eye on the radar here:  http://weather.cod.edu/satrad/nexrad/index.php?type=RTX-N0Q-1-6

Chief Meteorologist Mark Nelsen