So far today...

High: 56°
Precip: 0.00"
Low: 53°
89° (2005)
37° (1966)
This Month
Since 1/1
Since 10/1

Today's Forecast

Updated Wednesday 6:20 a.m.

Thick fog developed around parts of Puget Sound around sunrise, making for some tricky commuting around cities like Olympia and Bremerton where visibility dropped to nearly zero!  However, higher pressure building in will clear out the fog for the interior later today, and as the warming continues, we'll hit the 'Goldilocks Zone':  not too hot, not too cool, but just right temps in the middle 70s for our Wednesday.

The storm that spun heavy showers and thundershowers from the Cascades and into Eastern Washington yesterday will continue to slink off into Idaho, but a few more storm cells could pop up from Mt. St. Helens and into the Yakima Valley today.  If you're up in the high country hiking, there is still a chance for some lightning near the Cascade crest.  Down below, sunshine will scrub the early fog away for all communities save for some of the ocean beaches.  Forks and La Push will see just partial clearing, and highs will stay in the low to middle 60s near the coast.

A ridge of high pressure will continue to grow over the Eastern Pacific through the end of the week, and as such, we'll keep the warm-up coming.  Afternoon highs will hit the upper 70s in Seattle and Tacoma on Thursday, and temps will hover closer to 80 degrees in the toastier towns by Friday afternoon.

Stronger onshore flow will knock the temperatures down a few degrees by the weekend, but it still looks great for getting outdoors, with highs still primarily in the 70s on Saturday and Sunday.  The first of June looks cooler still, with increasing clouds and a chance for showers on back-to-work Monday.

Have a great morning,

Meteorologist Shannon O'Donnell
The KOMO4 Forecast Team

Scott's Blog

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Luke Meyers just recently published this time lapse video of a rather strange-looking lenticular cloud over Mt. Rainier last March. It's a good illustration of how they form -- the clouds look stationary but there's quite a bit of movement in them as air rises just enough to saturate, then dries enough as it sinks to "go invisible" again.
Weather 'Tis the season for brilliant 'fire rainbows' (Photo Gallery)
NOTE: Story orignally posted May 8, 2013

The first week of May is probably better known around here as the Opening Day of Boating Season but did you also know it's when we kick off the fire rainbow season?

Fire rainbows, or more officially (and more boringly) known as "circumhorizonal arcs" are caused by ice crystals in the thin, distant clouds being at just the correct angle to refract the sunlight into the colors of the prism.

Ron Glowen, now of Arlington, Wash., just sent me these photos that were taken in June of 2006 while visiting his hometown of Spokane.

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