Spills · mystery_substance

Gulf of mexico, la

Marsh Island Mystery Spill; Gulf of Mexico, la · NOAAORR-1055

issued: 2003-04-15 00:00Z
status: cancelled 2003-04-29 00:00Z
self-cancels: 2003-04-29 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 29.441, -92.035
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Marsh Island Mystery Spill; Gulf of Mexico, LA.
Gulf of Mexico, LA.
1. Mystery spill in the Gulf of Mexico near the Marsh Islands. Observed silver and rainbow sheens. No follow-up requested, only trajectory analysis.
2. THREAT: OIL. TAGS: MYSTERY SUBSTANCE.
3. POSITION 29.441N 092.035W. NOAA INCIDENTNEWS 1055: https://incidentnews.noaa.gov/incident/1055

This area · spills & pollution incidents

1305 within 180 nm since 1970 · 41 in the last 12 months · 2 in force now

Crude oil spill and in-situ burn at tpic; south pass 24, pilottown, louisiana2026-08-26
Intermittent oil sheen; flower garden banks national marine sanctuary, bright bank2026-08-25
Mystery sheen at south pass 29; port eads, louisiana2026-08-13
Release of aluminum phosphide in M/V thorco liva; port arthur, texas2026-07-28
Mystery oiled shoreline at holly beach; cameron parish, louisiana2026-07-10
Johnson bayou, la2026-06-17

Season · when spills & pollution incidents happen here

month of issue, all years in the archive

Timeline · 2 messages since 2003-04-12 · closed 2003-04-29

Cypremort point state park, la2003-04-12 → 2003-04-26
Gulf of mexico, la this message2003-04-15 → 2003-04-29

joined by proximity

Nearby now · within 120 nm

Uscg remote communication facility new orleans 29-53.00N 089-57.00W mf and hf dsc off airNav aids · 112 nm
Intermittent oil sheen; flower garden banks national marine sanctuary, bright bankSpills · 115.1 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.