UPDATE: I-90 re-opens from spinouts as snow blankets mountain passes in Washington and Oregon

A Winter Storm Warning is in effect until 10am Thursday for the Cascades, 6-18" of new snow possible.

THE LATEST: Traffic Alert: I-90 E closed again from North Bend to Cle Elum as WSDOT breaks snow and ice


UPDATE at 4:15 p.m. on 12/8/21: I-90 E has been cleared and re-opened after it was blocked for several hours.

UPDATE at 1:15 p.m. on 12/8/21: WSDOT officials say that the eastbound lane of I-90 is closed west of the summit (Milepost 47 near Denny Creek) as vehicles without the proper tire chains spin out near Snoqualmie Pass.

Please be advised that I-90 is going to be backed up heading eastbound on Wednesday afternoon.

The following weather article has been left unaltered from its publishing on the morning of December 8, 2021.

READ: It’s time for Washington drivers to bring out the chains, WSP says

Plan on slippery road conditions over mountain passes today. The hazardous conditions will impact any travel plans over Washington and Oregon mountain passes Wednesday through Thursday morning. A Winter Storm Warning is in effect until 10am Thursday for the Cascades, 6-18″ of new snow possible.

Snow Cover

Monday Morning 9AM Mountain Pass Update:

I-84 at Meacham

Carry Chains or Traction Tires
Weather Condition: Rain
Road Surface: Bare Pavement
Temp: 36 F
New Snow: 0 in.
Roadside Snow: 0 in.

I-84 at Meacham WB

* WHAT…Heavy snow Cascade Crest & Stevens Pass. Additional snow accumulations between 3 and 13 inches. Winds gusting 35 to as high as 50 mph.
* WHERE…Stevens Pass.
* WHEN…Until 10 AM PST Thursday.
* IMPACTS…Roads will likely become slick and snow covered. Travel could be very difficult. Gusty winds could bring down tree branches and create blowing snow.

…WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST THURSDAY ABOVE 2000 FEET… * WHAT…Heavy snow expected above 2000 feet. Total snow accumulations of 12 to 18 inches.
* WHERE…Cascade mountains of Whatcom, Skagit Snohomish, King Pierce and Lewis Counties, including the Mount Baker Ski Area, Stevens Pass, Snoqualmie Pass, the Crystal Mountain Ski Area, and Paradise on Mount Rainier.
* WHEN…From 4 AM Wednesday to 10 AM PST Thursday.
* IMPACTS…Plan on difficult travel conditions.
* ADDITIONAL DETAILS…Snow fall rates of 1 to 2 inches per hour are possible. Highest snow fall rates and accumulations are expected to be between Stevens and Snoqualmie Pass.