Winter Weather Advisory for Cascades & Siskiyous

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Mountain Snow Expected Thursday through Friday

A wet Pacific storm will bring snow to the mountains Thursday. Snow levels initially will be in the 6000 to 7000 foot range but are expected to lower to 4500 feet by early Thursday afternoon. By Thursday night snow levels are expected to lower to around 3000 feet. This will impact travel over the passes in the Cascade and Siskiyou Mountains Thursday night and Friday. There will be a break on Saturday but another storm is expected to impact the mountains Sunday into early next week.

Snow expected. Plan on difficult travel conditions,including during the evening commute on Thursday. Total snow accumulations of 5 to 10 inches are expected, with localized amounts up to 20 inches above 6000 feet.

Areas impacted are most of the Cascades and Siskiyous, Highways 62 and 138 from Union Creek to near Crater Lake and Diamond Lake. Additionally, highway 140 between White City and Klamath Falls, highway 66 between Ashland and Klamath Falls, Interstate 5 at Siskiyou Summit. Snow could start earlier in the day above 6000 feet before lowering to 4500 feet by late Thursday morning.

10 AM Thursday to 10 AM Friday. The heaviest snowfall rates will occur between 4 PM and 10 PM Thursday evening.

Plan on difficult travel conditions. Look for reduced visibilities at times.

View the hazard area in detail at

Slow down and allow extra time to reach your destination. Carry tire chains and be prepared for snow covered roads and limited visibilities. See for latest road conditions. A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties.

Affected Area(s): Siskiyou Mountains and Southern Oregon Cascades; South Central Oregon Cascades

Issued: Wed Jan 17, 2018 2:51 PM PST
Effective: Thu Jan 18, 2018 10:00 AM PST
Expires: Fri Jan 19, 2018 10:00 AM PST

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