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

Snowflakes started falling across the Willamette Valley this morning — dusting roads, plants and backyard furniture with white flurries. As cold weather moves across the state, much of Oregon is under winter storm or weather warnings from the National Weather Service through Friday.

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.