Special Marine Warning for Glacier Bay near Lone Island
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A Special Marine Warning is in effect for Glacier Bay until 11:00 AM AKDT due to a strong thunderstorm producing 40-knot winds.
30 seconds on this weather notice
- Record type
- Special Marine Warning
- Affected area
- Glacier Bay, Alaska
- Issued
- September 20, 2026
- Issuing authority
- NWS Juneau AK
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Special Marine Warning has been issued by the National Weather Service Juneau AK. The alert is effective from September 20, 2026 at 10:26 AM AKDT until September 20, 2026 at 11:00 AM AKDT.
Affected Areas
Glacier Bay, including Lone Island and Muir Point. The thunderstorm was located 11 NM southwest of Lone Island, or 19 NM northwest of Point Gustavus.
What You Should Do
Move to safe harbor until hazardous weather passes. Boaters should seek safe harbor immediately until this storm passes. Report severe weather to the Coast Guard or nearest law enforcement agency.
Expected Conditions
Wind gusts to 40 knots. Hail up to 0.75 inches possible. The storm is moving north at 40 knots.
Timeline
The warning is in effect from 10:26 AM AKDT to 11:00 AM AKDT on September 20, 2026.
Original source: NOAA Official Notice ↗
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (813 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 20, 2026.
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