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Winter Weather Advisory

◍ Thompson Pass · USA · updated 10/28/2026, 9:21:00 PM

⏱ In effect until 4:00 PM UTC-8

Severity score

65/100

Confidence

High

Why this matters

* WHAT...Snow expected. Visibility one half mile or less at times. Total snow accumulations 10 to 15 inches. * WHERE...Thompson Pass. * WHEN...From 4 AM Friday to 4 AM AKDT Saturday. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...Light snow will develop Thursday evening, then intensify Thursday night into Friday. The heaviest snow is expected during the day Friday. Warming tempe

Key stats

Severity

Moderate

Certainty

Likely

Urgency

Expected

Timeline

Winter Weather Advisory
10/28/2026, 9:21:00 PM
Winter Weather Advisory issued October 28 at 1:21PM AKDT until October 30 at 10:00PM AKDT by NWS Anchorage AK

Sources & attribution

OfficialNWS NWS Anchorage AKupdated 10/28/2026, 9:21:00 PM

OfficialNWS NWS Portland ORupdated 10/28/2026, 3:17:00 PM

OfficialNWS NWS Seattle WAupdated 10/28/2026, 8:53:00 AM

⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.