Spills · mystery_substance

Offshore grand isle, la

Mystery Sheen; Offshore Grand Isle, la · NOAAORR-9172

issued: 2015-09-12 00:00Z
status: cancelled 2015-09-26 00:00Z
self-cancels: 2015-09-26 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 29.067, -89.734
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mystery Sheen; Offshore Grand Isle, LA.
Offshore Grand Isle, LA.
1. On September 12, 2015, the NOAA SSC was notified by the USCG Marine Safety Unit in Morgan City, Louisiana, of a mystery sheen offshore of Grand Isle, LA. USCG requested a trajectory and evaluation of potential shoreline impact on Grand Isle and/or potential oiling of the Louisiana Offshore Oil Port (LOOP).
2. THREAT: OIL. COMMODITY: UNKNOWN; SUSPECTED OIL. TAGS: MYSTERY SUBSTANCE.
3. POSITION 29.067N 089.734W. NOAA INCIDENTNEWS 9172: https://incidentnews.noaa.gov/incident/9172

This area · spills & pollution incidents

1034 within 180 nm since 1970 · 35 in the last 12 months · 2 in force now

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Season · when spills & pollution incidents happen here

month of issue, all years in the archive

Timeline · 2 messages since 2015-08-26 · closed 2015-09-26

Nesdis anomaly ; blocks 43, 47 gom, la2015-08-26 → 2015-09-09
Offshore grand isle, la this message2015-09-12 → 2015-09-26

joined by proximity

Nearby now · within 120 nm

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Worldwide now

8 spills & pollution incidents in force · see all

Spills

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