Exercises

Hazardous operations 221400Z to 230100Z jan, alternate 231400Z to 240100Z, 241400Z to 250100Z, 281400Z to…

Eastern North Pacific · California · NAVAREA XII 19/20

issued: 2020-01-17 09:58Z
status: cancelled 2020-01-19 01:06Z (archive)
self-cancels: 2020-01-31 02:00Z
authority: SEA RANGE OTC 141602Z JAN 20.
sea: North Pacific Ocean
position: 33.290, -120.201
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS 221400Z TO 230100Z JAN,
   ALTERNATE 231400Z TO 240100Z, 241400Z TO 250100Z,
   281400Z TO 290100Z AND 301400Z TO 310100Z JAN
   IN AREA BOUND BY
   33-34N 120-53W, 33-57N 120-28W,
   33-15N 119-36W, 32-57N 119-26W,
   32-40N 119-43W, 32-54N 120-13W,
   33-26N 121-03W.
2. CANCEL THIS MSG 310200Z JAN 20.

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2020-01-22 14:00Z	2020-01-23 01:00Z	—	11 h
2020-01-23 14:00Z	2020-01-24 01:00Z	—	11 h
2020-01-24 14:00Z	2020-01-25 01:00Z	—	11 h
2020-01-28 14:00Z	2020-01-29 01:00Z	—	11 h
2020-01-30 14:00Z	2020-01-31 01:00Z	—	11 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 · military exercises

1136 within 180 nm since 1999 · 8 in the last 12 months · 5 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Cancel NAVAREA XII 19/20 and this msgcancelled by · 2020-01-19

Nearby now · within 120 nm

Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…Exercises · 45.9 nm
Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-52.70N 119-11.96W, 33-08.06N 118-52.09W,…Exercises · 72.2 nm
Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…Exercises · 96 nm

Worldwide now

36 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.