Spills · oil

North slope, alaska

Seal Island Mystery Sheen; North Slope, Alaska · NOAAORR-10995

issued
2025-06-24 00:00Z
status
cancelled 2025-07-08 00:00Z
self-cancels
2025-07-08 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; North Slope, Alaska.
North Slope, Alaska.
1. An crude oil discharge has been reported off of Northstar/Seal Island, an artificial oil production island, near Prudhoe Bay, Alaska. The oil appears to be partially trapped or under sea ice. The source is under investigation.
2. THREAT: OIL.
3. POSITION 70.483N 148.683W. NOAA INCIDENTNEWS 10995: https://incidentnews.noaa.gov/incident/10995

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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month of issue, all years in the archive

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

8 spills & pollution incidents in force · see all

Spills

Oil and chemical spills, groundings and vessel casualties with a pollution threat: NOAA IncidentNews responses since 1957, and spill-response areas broadcast as navigational warnings. All current spills & pollution incidents →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.