April “Heat Wave” Doesn’t Disappoint; Showery Weekend Ahead

April 26, 2018

9:30pm Thursday

Okay, I’ll admit it.   Today was weird…hazy and on the edge of “hot”.  I had the AC cranking in the car, on April 26th!  The haze was likely due to controlled burns in Central Oregon.  We warmed another two degrees in Portland today, reaching within 4 degrees of the all-time April high temperature (90).

Mark PDX Record High Hot

We’ve only seen a few instances of 3 consecutive 80 degree days in the month of April and this was one of them.  We broke records the last two days, then tied the record today

Mark Hot Heatwave So Far

The most interesting aspect today from a meteorological standpoint was the surge of southwest wind into the central/south Willamette Valley and up the Columbia River to Kelso/Longview.  Check out high temps today:

Todays Observed Highs OrWa 2017

The metro area sticks out doesn’t it?  I think this is the only time I’ve seen mid 80s in the metro area and only 60s in the south Valley, with both locations under sunshine most of the day.

This evening the cool air is pouring inland and temps are falling like the proverbial “rock” in Portland

2017 Current Temps PDX Metro Area Earth Scene

Nice natural air conditioning don’t you think?

I have been tracking a few thunderstorms the past few hours moving out ahead of the upper-level low offshore.  Earlier a few strikes were detected in Linn County, and I see a thunderstorm just east of Florence at this hour.  Most likely this action will continue through the overnight hours, but I doubt it’ll make it all the way up into NW Oregon.

The forecast for tomorrow through the weekend is easy…cool, cloudy, with showers at times.  That’s because the upper-level low will be tracking across Oregon from tomorrow through Sunday afternoon.  It’ll be strange to turn on the heat again after the past few days!

Chief Meteorologist Mark Nelsen