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Drivers on I-90 over Snoqualmie Pass can expect higher-than-normal traffic volumes Friday afternoon, Saturday morning and Monday afternoon. To help plan your travel, on the graphs below, the vertical axis shows the number of cars WSDOT expects on the roadway for that hour of day. Current traffic incidents or adverse weather can result in traffic congestion outside the hours shown. Please check conditions before you leave by visiting the Snoqualmie Pass Road and Weather Conditions site. Back to Memorial Day 2012 News Release