NEW, Second Wind Advisory Issued for Snoqualmie Valley, 50MPH Gusts Possible

UPDATE |  Saturday, 10/25/14, 7:30AM, Approaching storm Strengthens
weather radar

Photo: Screenshot KOMO News weather.

The National Weather Service (NSW) is letting the first wind advisory expire early for the Snoqualmie Valley. They say the strongest east winds will occur early Saturday morning, then ease and switch to a southwesterly direction later in the afternoon, becoming stronger again in the evening hours.

The storm approaching the Washington coast is now a bit stronger than earlier weather models showed.  As a result, the NWS issued a second wind advisory was the Snoqualmie Valley and east Puget Sound lowlands, which runs from 3PM, October 25th through 6AM on October 26th.

Those southwest winds are predicted to be 15 to 30MPH, with gusts up to 45-50MPH during the evening hours. It will be soggy, too, with around an inch of rain possible. Highs will be in the upper 50’s. The wind will start easing after midnight.

Some trees came down on Fairway Ave on Snoqualmie Ridge. Resident Eric Mitchell reported seeing three, downed sidewalk trees down.

treedown1

Fairway Ave in Snoqualmie, 10/25/14. Pic: Eric Mitchell

Downed tree on Fairway Ave in Snoqualmie. Photo: Eric Mitchell

Downed tree on Fairway Ave in Snoqualmie. Photo: Eric Mitchell

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It’s fall. It was bound to happen. Gap winds. The National Weather Service has issued the first wind advisory for the Snoqualmie Vally of Fall 2014.

If you’ve lived here awhile, you’re probably used to it and the advisory doesn’t look to be anything too far out normal fall wind realm for the Valley. If you’re new to the area… get used to the wind.

The advisory starts Friday night, October 24, 2014, at 8PM and runs through Saturday, October 25th at 9AM. The strongest of the winds are expected in the Foothill communities, but the advisory covers all of the East Puget Sound Lowlands over to Bellevue.

Winds are expected to be out of the east, 20MPH to 30MPH, with gusts up to 50MPH. Again, he strongest winds are gusts are expected in the Foothills, late Friday night through early Saturday morning.

Gap Winds occur in the Snoqualmie Valley when strong east-to-west pressure gradients exist between the coast and inland areas. Essentially a low pressure system (strong storm) exists off the coast and strong winds are channeled (sucked) through the Snoqualmie Pass mountain gap.

The National Weather Service states winds in this range “can topple small trees or shallow rooted trees and cause local power outages.”

So… nothing new when it comes to fall weather in the Snoqualmie Valley, but something to be aware of in case you have to fire up the generator or make sure you’ve stocked up on candles for the season.

Happy Fall!

 

Gap wind event in 2010 snapped heavy branches in Snoqualmie.

Gap wind event in 2010 snapped trees in Snoqualmie.

 

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