Surveys

Hazardous underwater operations 071400Z to 072000Z aug within 50 miles of 10-30N 017-50W

HYDROLANT 2715/00

issued
2000-08-03 14:53Z
status
cancelled 2000-08-07 21:00Z (archive)
self-cancels
2000-08-07 21:00Z
authority
NAVAREA II 233/00 031405Z AUG 00
sea
North Atlantic Ocean
position
10.500, -17.833 · r 50.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS UNDERWATER OPERATIONS 071400Z TO 072000Z AUG
   WITHIN 50 MILES OF 10-30N 017-50W.
2. CANCEL THIS MSG 072100Z AUG.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2000-08-07 14:00Z2000-08-07 20:00Z6 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · survey operations

7 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

00
05
10
15
20

Season · when survey operations happen here

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

month of issue, all years in the archive

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 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.