Winter Storm Warning Issued for South Washington Cascades Through Wednesday Afternoon

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.