Full Notification

A cold front, and much colder air aloft will move into the region beginning 10 PM tonight into Sunday, bringing mountain snow to the Olympics and Cascades, and an increasing threat of lowland snow to Western Washington. Showers will linger behind the front, and may be heavy at times, especially associated with the formation of a Puget Sound Convergence Zone.

A second set of systems will affect the region through much of next week, bringing periods of significant precipitation that will result in mountain snow, a renewed threat of lowland snow, and the potential for rises on some area rivers late in the week.

PRIMARY AREAS IMPACTED:
* Mountain snow and increased avalanche risk:
* Olympic and Cascade Mountains
* Lowland Snow:
* Snow showers likely for most of the Western Washington lowlands (see confidence section below)
* Heavier accumulations expected for higher hilltops and areas of heavier or persistent precipitation, such as the showers ssociated with the Puget Sound Convergence Zone