Chains required on I-90, Winter Storm Watch Starts Tomorrow (2-22-19, 9:00 p.m.)

Snoqualmie Pass remains open to both eastbound and westbound traffic. However, the Washington State Department of Transportation is requiring chains on vehicles traveling in either direction on I-90 through the pass, with the exception of all-wheel drive vehicles. Oversize vehicles are prohibited.

The National Weather Service has issued a Winter Storm Watch, which is scheduled to be in effect from tomorrow evening through late Tuesday night. It was issued in response to a forecast calling for a prolonged snow event, which is expected to impact much of the region, with total snow accumulations of 4 to 7 inches possible. NWS also urges drivers to plan for slippery road conditions, adding that the hazardous conditions could impact the morning or evening commutes.