Surveys

Scientific mooring, top float 20 meters below surface, established in 61-45.7N 084-18.1W

Hudson Bay · Canada · NAVAREA IV 798/21

issued: 2021-09-05 15:56Z
status: cancelled 2022-03-25 14:37Z (archive)
authority: MCTS 051542Z SEP 21.
position: 61.762, -84.302
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

HUDSON BAY.
CANADA.
SCIENTIFIC MOORING, TOP FLOAT 20 METERS BELOW
SURFACE, ESTABLISHED IN 61-45.7N 084-18.1W.

This area · survey operations

1 within 180 nm since 2021 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

NAVAREA IV warnings in force as of 251432Z mar 22: 297/22, 296/22, 295/22, 294/22, 293/22, 289/22, 286/22,…cancelled by · 2022-03-25

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.