Spills · oil

Ketchikan, ak, USA

Mystery Sheen In Tongass Narrows; Ketchikan, Alaska · NOAAORR-11175

issued: 2026-06-23 00:00Z
status: cancelled 2026-07-07 00:00Z
self-cancels: 2026-07-07 00:00Z
authority: NOAA OR&R
sea: The Coastal Waters of Southeast Alaska and British Columbia
position: 55.330, -131.625
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mystery Sheen in Tongass Narrows; Ketchikan, Alaska.
Ketchikan, AK, USA.
1. U.S. Coast Guard (USCG) Marine Safety Detachment (MSD) Ketchikan contacted the NOAA Scientific Support Coordinator (SSC) regarding a mystery sheen in Tongass Narrows, near Thomas Harbor, Alaska. The sheen is approximately 1 km long, with diesel odors onshore in Ketchikan and across the Narrows on Pennock Island. USCG is requesting support to identify a potential source location and volume of the discharge.
2. THREAT: OIL.
3. POSITION 55.330N 131.625W. NOAA INCIDENTNEWS 11175: https://incidentnews.noaa.gov/incident/11175

This area · spills & pollution incidents

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Nearby now · within 120 nm

Uscg communication facility pt higgins 55-27.00N 131-49.00W transmit and receive services off airNav aids · 9.7 nm

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