Winter Storm Warning Issued for South Washington Cascades Through Wednesday Afternoon
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
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The National Weather Service has issued a Winter Storm Warning for the South Washington Cascades, with up to 18 inches of snow and 35 mph wind gusts expected.
Read this weather record in 30 seconds
- Record type
- Winter Storm Warning
- Affected area
- South Washington Cascades
- Issued
- April 6, 2026
- Issuing authority
- NWS Portland OR
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in South Washington Cascades.
Alert Details
The National Weather Service in Portland, OR, has issued a Winter Storm Warning for the South Washington Cascades. This alert follows a Winter Weather Advisory and indicates a significant increase in expected snowfall and hazardous conditions for the region.
Affected Areas
The warning specifically impacts the South Washington Cascades. The initial advisory affects elevations above 2,000 feet, while the more severe Winter Storm Warning applies to areas above 2,500 feet.
What You Should Do
Authorities recommend that residents and travelers consider postponing travel until weather conditions improve. If travel is necessary, drivers should slow down and allow for significant extra time to reach their destinations.
Safety measures include:
- Carrying a winter emergency driving kit containing a flashlight, batteries, blankets, a shovel, water, non-perishable food, and tire chains.
- If your vehicle becomes trapped in deep snow, keep the engine off to prevent carbon monoxide poisoning.
- Monitor the Washington State Department of Transportation (WSDOT) website for real-time road conditions and chain restrictions.
- Avoid backcountry recreation during this period due to hazardous conditions.
Expected Conditions
- Snow Accumulations: For the initial advisory period, 6 to 10 inches of snow are expected above 2,000 feet. During the Winter Storm Warning, heavy snow is expected above 2,500 feet with total accumulations reaching 12 to 18 inches.
- Wind: Wind gusts are expected to reach as high as 35 mph.
- Road Impacts: Roads, bridges, and overpasses are likely to become slick and hazardous. The heaviest snowfall rates are expected to occur between 5 AM and 5 PM on Wednesday.
Timeline
- Winter Weather Advisory: Remains in effect until 5:00 PM PDT Tuesday, March 10.
- Winter Storm Warning: Effective from 5:00 PM PDT Tuesday, March 10, through 5:00 PM PDT Wednesday, March 11.
Original source: NOAA Official Notice ↗
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