Exercises

Hazardous operations 131030Z to 131900Z apr, alternate 141030Z to 141900Z apr in area bound by 33-22N…

Eastern North Pacific · California · NAVAREA XII 152/21

issued: 2021-04-08 08:51Z
status: cancelled 2021-04-13 21:11Z (archive)
self-cancels: 2021-04-14 20:00Z
authority: SEA RANGE OTC 1/21 070326Z APR 21.
sea: North Pacific Ocean
position: 33.409, -121.044
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS 131030Z TO 131900Z APR,
   ALTERNATE 141030Z TO 141900Z APR
   IN AREA BOUND BY
   33-22N 121-54W, 33-31N 121-17W,
   33-38N 120-21W, 33-22N 120-18W,
   33-15N 121-14W, 33-14N 121-53W.
2. CANCEL THIS MSG 142000Z APR 21.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2021-04-13 10:30Z	2021-04-13 19:00Z	—	8 h 30
2021-04-14 10:30Z	2021-04-14 19:00Z	—	8 h 30

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

1155 within 180 nm since 1999 · 7 in the last 12 months · 4 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Cancel NAVAREA XII 152/21 and this msg, operations completedcancelled by · 2021-04-13

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 · 81 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 · 114.5 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.