Surveys

Louisiana to maryland

North Atlantic Ocean · NAVAREA IV 1064/22

What this record establishes

Archived notice · 2022-10-13 00:15Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · WHOI 0/22 102001Z OCT 22.. Issued 2022-10-10 22:01Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the North Atlantic Ocean →

issued
2022-10-10 22:01Z
status
Archived notice
self-cancels
2022-10-31 00:59Z
authority
WHOI 0/22 102001Z OCT 22.
NAVAREA
NAVAREA IV
issued by
WHOI
sea
North Atlantic Ocean
position
37.794, -73.962
vessel
M/V ATLANTIS · 37 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
GULF OF MEXICO.
LOUISIANA TO MARYLAND.
1. UNDERWATER OPERATIONS BY M/V ATLANTIS
   0001Z TO 2359Z DAILY:
   A. 15 OCT IN AREA WITHIN
      20 MILES OF 28-07.30N 089-08.20W.
   B. 16 OCT IN AREA WITHIN
      20 MILES OF 27-43.40N 091-16.80W.
   C. 17 OCT IN AREA WITHIN
      20 MILES OF 27-46.90N 091-30.50W.
   D. 18 OCT IN AREA WITHIN
      20 MILES OF 27-27.70N 091-13.20W.
   E. 19 OCT IN AREA WITHIN
      20 MILES OF 27-06.40N 091-09.90W.
   F. 21 OCT IN AREA WITHIN
      20 MILES OF 27-38.90N 088-21.80W.
   G. 23 OCT IN AREA WITHIN
      20 MILES OF 25-56.50N 084-56.50W.
   H. 27 OCT IN AREA WITHIN
      20 MILES OF 32-29.50N 076-11.50W.
   I. 29 OCT IN AREA WITHIN
      20 MILES OF 38-02.80N 073-49.30W.
   J. 30 OCT IN AREA WITHIN
      20 MILES OF 37-32.50N 074-06.10W.
2. CANCEL THIS MSG 310059Z OCT 22.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Within a radius of
A circular area — every position within a stated distance of a point.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · survey operations

6 within 180 nm since 2005 · 2 in the last 12 months · 0 listed in force now

05
10
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-09-26 00:31Z; source collection times vary.

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.