Exercises

Hazardous operations 1300Z to 0100Z commencing daily 13 thru 23 mar within 25 miles of 25-39N 084-23W

NAVAREA IV 90/01

issued
2001-03-13 13:19Z
status
cancelled 2001-03-24 02:00Z (archive)
self-cancels
2001-03-24 02:00Z
cancels
NAVAREA IV 88/01
authority
CCGD SEVEN BNM 627/01 121727Z MAR 01; NAVCEN ALEXANDRIA 131205Z MAR 01
sea
Gulf of Mexico
position
25.650, -84.383 · r 25.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 1300Z TO 0100Z COMMENCING DAILY
   13 THRU 23 MAR WITHIN 25 MILES OF 25-39N 084-23W.
2. CANCEL NAVAREA IV 88/01(GEN).
3. CANCEL THIS MSG 240200Z MAR.

Activity windows · 11 in this warning

opens (UTC)closes (UTC)locallength
2001-03-13 13:00Z2001-03-14 01:00Z12 h
2001-03-14 13:00Z2001-03-15 01:00Z12 h
2001-03-15 13:00Z2001-03-16 01:00Z12 h
2001-03-16 13:00Z2001-03-17 01:00Z12 h
2001-03-17 13:00Z2001-03-18 01:00Z12 h
2001-03-18 13:00Z2001-03-19 01:00Z12 h
2001-03-19 13:00Z2001-03-20 01:00Z12 h
2001-03-20 13:00Z2001-03-21 01:00Z12 h
3 more

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

This area · military exercises

83 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10
15
17

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
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N
D

month of issue, all years in the archive

Timeline

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.