Spills · oil
South marsh island block 149 mystery sheen; SMI149
NOAAORR-9572
- issued
- 2017-09-19 00:00Z
- status
- cancelled 2017-10-03 00:00Z
- self-cancels
- 2017-10-03 00:00Z
- authority
- NOAA OR&R
- sea
- Gulf of Mexico
- position
- 28.242, -92.128
- source
- incidentnews · first seen 2026-09-03 15:09Z
Original warning text
South Marsh Island Block 149 Mystery Sheen; SMI149. SMI149. 1. On September 19, 2017, the USCG MSU Houma contacted NOAA regarding a mystery sheen located in South Marsh Island Block 149. The USCG are requesting trajectory information. 2. THREAT: OIL. COMMODITY: OIL. 3. POSITION 28.242N 092.128W. NOAA INCIDENTNEWS 9572: https://incidentnews.noaa.gov/incident/9572
This area · spills & pollution incidents
1242 within 180 nm since 1970 · 41 in the last 12 months · 2 in force now
70
75
80
85
90
95
00
05
10
15
20
25
26
- 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
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Nearby now · 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.