Why Have The Cascade Foothills Been Picked On Lately?

Tools

By By Steve Pool

SEATTLE - After first getting blasted with 80 mph in December, the Cascade foothills communities were hit with blowing snow, then a heavy ice storm Jan. 6&7. Why were they picked on?

In the Dec. 4 windstorm, strong high pressure in Eastern Washington pushed air though the Cascade passes toward lower pressure offshore. As the air went through the pass, it accelerated as it squeezed through.

With the Jan. 6 storm, we once again had the air rushing through the passes from strong pressure differences like last time.

Only this time, it was 15-degree air blowing from Eastern Washington. That kept the foothills entrenched in a cold wind while the rest of the area slowly warmed. It brought blowing snow at first, and then ice storms as the raindrops froze into ice as they hit the colder layer of air blowing in near the surface.

Most Popular

Your Photos

YouNews Tuesday evening clouds Tuesday evening clouds
These photos were taken Tuesday evening between 8:30pm and 9pm with a Nikon D3000 DSLR and a 50-200mm telephoto lens.
YouNews The Fire God of Winthrop, WA The Fire God of Winthrop, WA
Picture taken by friend Rocky Fletcher before the Rhythm and Blues festival started. Smoke from the Carlton Complex Fire on Thurs July 17.