A Gloomy Sunday & Last Night’s Lightning

September 9, 2012

For those of you that didn’t like the sunny and warm (okay, a couple of days of hot afternoons too), today is the payoff.   We should top out about 25 degrees cooler than Friday!

Cloud cover fills all areas west of the Cascade crest up to about 5,000′.  That’s because a thick layer of cool marine air has moved inland; it’ll be over us all day.  Most likely we’ll see patchy sunny spots break out here and there, but many of us will sit under the gloom all day.    We sure expected that change, but didn’t expect all the thunderstorm activity overnight.  That was caused by an upper-level disturbance moving north and inland through Washington.  Look at all the strikes! 

The blue is older than 12 hours, basically what we had yesterday afternoon with that line that raced through the metro area.  Then around 11pm-2am little pulse-type storms kept firing in far east Multnomah County and Skamania counties northeast of Crown Point.  I went to bed early, about 10:30pm, after a crazy FOX-12 party at the Boiler Room.  Actually it wasn’t that crazy, but I was tired and went to bed early.  Anyway, I thought I heard hail or EXTREMELY large raindrops at some point, but didn’t see any flashing and fell back to sleep right away.  My window faces south, so that didn’t help.  “Mountain Man” in the previous post comments that he had hail up near the Washougal River…interesting.  Here’s the closer lightning view:

Chief Meteorologist Mark Nelsen