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.

Power outages appeared increasingly likely, with officials around Eugene issuing a variety of warnings as they geared up for potential disruptions.