Spills · oil

Southwest pass block 24; southwest pass, miss

NOAAORR-8746

issued
2014-04-03 00:00Z
status
cancelled 2014-04-17 00:00Z
self-cancels
2014-04-17 00:00Z
authority
NOAA OR&R
sea
Gulf of Mexico
position
29.140, -89.334
source
incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Southwest Pass Block 24; Southwest Pass, Miss. River Delta, LA.
Southwest Pass, Miss. River Delta, LA.
1. On April 3, 2014, the USCG New Orleans contacted the NOAA SSC regarding a reported crude oil spill that occurred near Southwest Pass on the Mississippi River Delta. Volume of release estimated to have been 7 to 10 barrels (bbls) with a maximum potential of 37 bbls. Source of the release is unknown. USCG conducted an overflight and observed a 3 nautical mile (NM) by 1 NM sheen, with moderate marsh impact. Sheen described as 50% coverage, 40% silver, 30% dark, 30% dull brown. USCG has requested trajectory.
2. THREAT: OIL. COMMODITY: CRUDE OIL. MAXIMUM POTENTIAL RELEASE: 420 GALLONS.
3. POSITION 29.140N 089.334W. NOAA INCIDENTNEWS 8746: https://incidentnews.noaa.gov/incident/8746

This area · spills & pollution incidents

1016 within 180 nm since 1970 · 35 in the last 12 months · 2 in force now

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

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

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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.