Exercises

Hazardous operations 201500Z to 202359Z sep, alternate 1500Z to 2359Z daily 21 and 22 sep in area bound by…

Eastern North Pacific · California · NAVAREA XII 507/21

issued: 2021-09-16 09:18Z
status: cancelled 2021-09-20 21:08Z (archive)
self-cancels: 2021-09-23 00:59Z
authority: SEA RANGE OTC 152221Z SEP 21.
sea: North Pacific Ocean
position: 33.451, -120.042
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS 201500Z TO 202359Z SEP,
   ALTERNATE 1500Z TO 2359Z DAILY 21 AND 22 SEP
   IN AREA BOUND BY
   33-16-19N 119-30-23W, 33-31-22N 119-21-12W,
   33-53-22N 119-20-03W, 33-56-06N 119-49-24W,
   33-42-03N 120-39-14W, 32-55-48N 120-38-45W,
   32-56-01N 120-02-54W, 33-09-10N 119-51-01W,
   33-13-57N 119-32-22W.
2. CANCEL THIS MSG 230059Z SEP 21.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2021-09-20 15:00Z	2021-09-20 23:59Z	—	8 h 59

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

1110 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 507/21 and this msgcancelled by · 2021-09-20

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 · 33.7 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 · 69.2 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 · 92.2 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.