Much of the Willamette Valley turned white on Thursday morning as a few inches of snow fell from Eugene to Portland. Here's how much snow fell.

If temperatures drop below freezing, she said, it could lead to “major ice build-up,” creating hazardous driving conditions. Melting snow and ice in some areas are also leading to high water and standing water hazards, she said. If temperatures fall, these could also re-freeze.

Snow and freezing rain is likely to continue impacting roads and schools until a widespread warmup midday Friday across the Willamette Valley.

In case you needed another reason to stay home Thursday, the ongoing snowstorm is slowing traffic along major highways in the Portland and Salem metropolitan areas. The Oregon Department of Transportation’s TripCheck map estimates that areas could see delays of 20 minutes to 2 hours depending on the route.

Here are Salem-area schools with delays and closures for today: Chemeketa Community College: All Campuses and Outreach Centers closed. All in-person and remote classes, activities, work and events canceled. Family Building Blocks: Classes canceled. FBB sites open at 1 p.m.

The National Weather Service has issued an ice storm warning for the Willamette Valley through early Friday. Follow our live updates.

The National Weather Service issued a winter storm watch for the Willamette Valley for snow and ice Thursday and Friday.

Snow, ice and freezing rain are likely to continue impacting roads and schools until a widespread warmup midday Friday across the Willamette Valley.