Surveys

Survey operations in progress until 03 oct by M/V sheila bordelon, M/V sw gallien and M/V sw mikkelsen in…

Gulf of Mexico · Louisiana · NAVAREA IV 481/23

issued
2023-04-29 17:11Z
status
cancelled 2023-04-30 15:13Z (archive)
self-cancels
2023-10-04 00:01Z
authority
SW GALLIEN 0/23 291704Z APR 23.
position
27.540, -91.577
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF MEXICO.
LOUISIANA.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 03 OCT
   BY M/V SHEILA BORDELON, M/V SW GALLIEN AND
   M/V SW MIKKELSEN IN AREA BOUND BY
   26-50.26N 092-18.75W, 26-49.46N 090-51.51W,
   28-14.33N 090-49.94W, 28-15.19N 092-18.30W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 040001Z OCT 23.

This area · survey operations

52 within 180 nm since 2002 · 2 in the last 12 months · 2 in force now

02
05
10
15
20
25
26

Season · when survey operations happen here

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F
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A
M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Worldwide now

75 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations

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.