Weather
Oregon Winter Weather Awareness Through Oct 31: Freezing Rain Risks
Salem, OR – Ice covered highways, falling trees and widespread power outages can quickly create dangerous conditions across Oregon. As winter weather awareness efforts continue Tuesday, October 27, re
By Grant Holloway · 2026-10-27T08:04:17.777Z
Salem, OR – Ice covered highways, falling trees and widespread power outages can quickly create dangerous conditions across Oregon. As winter weather awareness efforts continue Tuesday, October 27, residents are being reminded that freezing rain, mountain travel hazards and winter flooding can threaten communities during the colder months.
According to the National Weather Service NWS , freezing rain occurs when liquid precipitation freezes on contact with surfaces at or below freezing. Accumulating ice can make roads hazardous, damage trees and power lines, and leave homes without electricity.
How Dangerous Can Oregon Ice Storms Become? Even a thin coating of ice can make bridges, sidewalks and untreated roads extremely slippery. Accumulations approaching half an inch can cause substantial tree damage and widespread electrical disruptions.
Oregon experienced a destructive winter ice storm in January 2024, when freezing rain and severe winter conditions damaged trees, disrupted transportation and caused extensive power outages.
The Willamette Valley and Columbia River Gorge are particularly vulnerable to freezing rain when cold air remains trapped near the surface.
Drivers traveling Interstate 5, Interstate 84, U.S. Highway 26 and mountain routes across the Cascades should check conditions before departure.
Winter Flooding and River Ice Risks River ice jams develop when accumulated ice restricts water flow, potentially causing flooding upstream.
Although ice jams are relatively uncommon across western Oregon, they can develop along some eastern Oregon waterways during prolonged freezes and subsequent thaws.
Heavy winter rainfall, atmospheric rivers and rapid snowmelt pose more widespread flooding threats.
Communities along the Willamette, Clackamas, Sandy, Umpqua and Rogue rivers should monitor forecasts when heavy precipitation or rapid warming is expected.
How Oregon Residents Can Prepare Before severe winter weather arrives, residents should take several precautions:
Keep flashlights, batteries, blankets and emergency supplies accessible. Charge phones and prepare for extended power outages. Check road conditions and chain requirements before mountain travel. Avoid unnecessary driving during significant freezing rain. Stay away from downed power lines and unstable river ice. Never drive through flooded roadways. Residents can monitor official forecasts through the NWS Portland office , NWS Medford office and NWS Pendleton office .
Winter weather awareness efforts continue through Saturday, October 31 , emphasizing preparation before ice storms, power outages and winter flooding threaten Oregon communities.