November 12, 2024 - US National Weather Service Report:

Winter Storm Warnings are out for the northern WA mountains starting this afternoon and continuing through Thursday. Snow will fall mainly above 4000 feet with 18 to 24 inches forecasted over Washington Pass. If you  have travel plans over the pass, make sure you are prepared for possible winter driving.

Even if you are driving a 4-wheel drive vehicle, state law requires that you carry chains, starting November 1st.

Winter Closure Information

The North Cascades receive abundant snowfall each year, causing Highway 20 to close for the season in late fall/early winter, and reopen in spring, depending on conditions. The closure is from milepost 171 (west of Mazama) to milepost 134 (east of Diablo). This means our Loop becomes more of a crescent, and travelers should schedule accordingly.

Learn more at https://wsdot.com/travel/real-time/mountainpasses/north-cascade-hwy

Stevens Pass Road Alerts

Be sure to check the road conditions when traveling over Stevens Pass from the west side to the east side of the Cascade Loop:

https://wsdot.com/travel/real-time/mountainpasses/Stevens