Exercises

Hazardous operations 262145Z to 270230Z may, alternate 2145Z to 0230Z commencing daily 27 may thru 11 jun…

HYDROLANT 1037/99

issued: 1999-05-21 09:50Z
status: cancelled 1999-05-27 09:10Z (archive)
self-cancels: 1999-06-12 03:30Z
authority: Navarea II 142/99 200805Z MAY 99
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 262145Z TO 270230Z MAY, ALTERNATE
   2145Z TO 0230Z COMMENCING DAILY 27 MAY THRU 11 JUN
   EXCLUDING WEEKENDS IN AREAS BETWEEN:
   A. 32-10N 33-15N AND 022-15W 023-30W.
   B. 09-20N 11-35N AND 038-50W 041-05W.
2. CANCEL THIS MSG 120330Z JUN.

Activity windows · 17 in this warning

opens (UTC)	closes (UTC)	local	length
1999-05-26 21:45Z	1999-05-27 02:30Z	—	4 h 45
1999-05-27 21:45Z	1999-05-28 02:30Z	—	4 h 45
1999-05-28 21:45Z	1999-05-29 02:30Z	—	4 h 45
1999-05-29 21:45Z	1999-05-30 02:30Z	—	4 h 45
1999-05-30 21:45Z	1999-05-31 02:30Z	—	4 h 45
1999-05-31 21:45Z	1999-06-01 02:30Z	—	4 h 45
1999-06-01 21:45Z	1999-06-02 02:30Z	—	4 h 45
1999-06-02 21:45Z	1999-06-03 02:30Z	—	4 h 45
… 9 more

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

Timeline

Cancel HYDROLANT 1037/99 and this msg, operations completedcancelled by · 1999-05-27

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

35 military exercises in force · see all

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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.