First published Oct 20, 2026, 11:32:15 AM UTC · Last updated Oct 20, 2026, 11:32:15 AM UTC

Thunderstorms and lightning

NWS Juneau issues immediate marine warning for Glacier Bay, Icy Strait and Cross Sound

Reported by U.S. National Weather Service Alerts NWS

A stationary thunderstorm with frequent lightning and wind gusts up to 40 knots prompted a marine warning through 3:30 AM AKDT. The warning instructed people to move to safe harbor and advised those on open water to stay below deck if possible.

At a glance

Affected location: Glacier Bay, Alaska

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Why it matters

The warning says small craft could be damaged by briefly higher winds and suddenly higher waves.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Special Marine Warning issued October 20 at 3:04AM AKDT until October 20 at 3:30AM AKDT by NWS Juneau AK

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