Winter Weather — Northern Oregon Cascades, Oregon

2006-11-30 · Northern Oregon Cascades, Oregon

Event narrative

In the higher elevations of the Cascades, 6 inches of snow reported at Timberline Lodge.

Wider weather episode

A Pacific storm advanced over northwest Oregon, bringing rain to much of the lower elevations, and snow in the mountains. However, as the storm began to shift east, the relatively warm system rode over pre-existing cold air entrenched in the lower elevations, resulting in freezing rain at lower elevations - mainly through the Columbia River Gorge, portions of the northern Willamette valley, as well as valley regions within the northern Cascades. As a result, for much of the day, Interstate 84 was closed due to ice on the road.

Source: NOAA Storm Events Database, event_id 6189. Narrative written by the NWS forecast office that issued the report.