Winter Storm Warning Issued for Washington Cascades: Up to 18 Inches of Snow Expected
This alert is no longer in effect.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).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Winter Storm Warning for the Cascades of Whatcom, Skagit, Snohomish, and Northern King Counties, with heavy snow and gusty winds through Tuesday.
Read this weather record in 30 seconds
- Record type
- Winter Storm Warning
- Affected area
- Washington Cascades
- Issued
- April 6, 2026
- Issuing authority
- NWS Seattle
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 Washington Cascades.
Alert Details
The National Weather Service (NWS) in Seattle has issued a Winter Storm Warning for the mountain regions of Western Washington. This alert follows a preceding Winter Weather Advisory, indicating a transition to more severe winter conditions in the higher elevations.
Affected Areas
The alert specifically covers the following geographic regions:
- Cascades of Whatcom and Skagit Counties
- Cascades of Snohomish and Northern King Counties
Expected Conditions
Two distinct weather phases are expected for the region:
- Winter Weather Advisory Phase: Snow accumulations of 4 to 8 inches are expected with wind gusts reaching 35 mph.
- Winter Storm Warning Phase: Heavy snow is possible with total accumulations between 12 and 18 inches. Winds will continue to gust as high as 35 mph.
Impacts include snow-covered roads that will make travel difficult and may cause delays or temporary road closures. Gusty winds are expected to limit visibility and could potentially down tree branches.
Timeline
- Winter Weather Advisory: In effect from 5:00 AM to 1:00 PM PDT Sunday.
- Winter Storm Warning: In effect from 5:00 PM Sunday to 5:00 AM PDT Tuesday.
What You Should Do
Residents and travelers in the affected areas should take the following precautions:
- If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.
- Slow down and use caution while traveling.
- Prepare for possible power outages due to heavy snow and gusty winds.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Frequently Asked Questions
Common questions about this NWS weather alert.