Snow would continue to taper off in parts of the Pacific Northwest Thursday, a day after heavy snow fall made some normally busy streets in Seattle looked more like ski runs.

As the snowfall slowed Wednesday night in the area, officials warned that falling temperatures were making roads icy and dangerous for drivers.

"We are seeing multiple spinouts and collisions," the Washington State Department of Transportation reported on its website, advising drivers to slow down as road conditions worsened.

The National Weather Service canceled a winter storm warning for the area Wednesday afternoon, but said a winter weather advisory would remain in effect until midnight.