Spills · mystery_substance

Mystery sheen; mississippi canyon block 21, la

NOAAORR-8757

issued: 2014-05-07 00:00Z
status: cancelled 2014-05-21 00:00Z
self-cancels: 2014-05-21 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 28.919, -88.923
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mystery Sheen; Mississippi Canyon Block 21, LA.
Mississippi Canyon Block 21, LA.
1. On May 7, 2014, at At approximately 1:00 pm (CST) Sector NOLA contacted the NOAA SSC regarding an unknown sheen in Mississippi Cannyon Block 61. Coast Guard overflight at 1330 (CST) identified an overall impacted area approximately 20-30 miles long and 8 miles wide from Mississippi Canyon, Block 21 to Main Pass, Block 41 in the Gulf of Mexico. US Coast Guard requested a trajectory, and, if possible, some indication as to source, based on information from the overflght.
2. THREAT: OIL. COMMODITY: OIL. MAXIMUM POTENTIAL RELEASE: 1764 GALLONS. TAGS: MYSTERY SUBSTANCE.
3. POSITION 28.919N 088.923W. NOAA INCIDENTNEWS 8757: https://incidentnews.noaa.gov/incident/8757

This area · spills & pollution incidents

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Season · when spills & pollution incidents happen here

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Timeline · 9 messages since 2014-01-30 · closed 2014-06-14

Main pass 25, bison energy; 16 miles north of venice, la2014-01-30 → 2014-02-13
Bernard parish, la2014-02-20 → 2014-03-06
West delta block 83 W8 flowline; southwest pass venice, louisiana2014-03-09 → 2014-03-23
Hydrofluoric acid (hf) release; mississippi river, mm 882014-03-17 → 2014-03-31
Southwest pass, abandoned tank and leaking pipeline; southwest pass, la2014-03-19 → 2014-04-02
Southwest pass block 24; southwest pass, miss2014-04-03 → 2014-04-17
Barataria bay waterway; 7 miles south of lafitte, la2014-04-04 → 2014-04-18
Mystery sheen; mississippi canyon block 21, la this message2014-05-07 → 2014-05-21
Delta nwr, la2014-05-31 → 2014-06-14

joined by proximity

Nearby now · within 120 nm

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