Spills · oil

Seal island mystery sheen - 2026 occurrence; north slope, alaska

NOAAORR-11179

issued
2026-06-10 00:00Z
status
cancelled 2026-06-24 00:00Z
self-cancels
2026-06-24 00:00Z
authority
NOAA OR&R
sea
Beaufort Sea
position
70.483, -148.683
source
incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Seal Island Mystery Sheen - 2026 Occurrence; North Slope, Alaska.
North Slope, Alaska.
1. A mystery sheen has occurred near the former Seal Island oil exploration site in the Beaufort Sea, west of Prudhoe Bay. Sheen has been observed at this site in summer months since 2024. The source is unknown. Alaska Clean Seas is conducting cleanup operations of the recoverable oil emerging from the ice.
2. THREAT: OIL.
3. POSITION 70.483N 148.683W. NOAA INCIDENTNEWS 11179: https://incidentnews.noaa.gov/incident/11179

This area · spills & pollution incidents

15 within 180 nm since 1988 · 2 in the last 12 months · 0 in force now

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Nearby now · within 120 nm

Nothing else in force within 120 nm.

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