Exercises

Hazardous operations 231600Z to 240100Z aug, alternate 1600Z to 0100Z daily 24 thru 26 aug in area bound by…

Eastern North Pacific · California · NAVAREA XII 558/23

issued: 2023-08-18 07:34Z
status: cancelled 2023-08-21 18:28Z (archive)
self-cancels: 2023-08-27 02:00Z
authority: SEA RANGE OTC 0/23 172349Z AUG 23.
sea: North Pacific Ocean
position: 33.141, -120.125
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS 231600Z TO 240100Z AUG,
   ALTERNATE 1600Z TO 0100Z DAILY 24 THRU 26 AUG
   IN AREA BOUND BY
   33-24.00N 120-31.00W, 33-09.00N 120-16.00W,
   32-58.00N 120-20.00W, 32-51.00N 119-56.00W,
   32-52.00N 119-49.00W, 33-00.00N 119-48.00W,
   33-19.00N 119-59.00W, 33-18.00N 120-08.00W,
   33-30.00N 120-21.00W.
2. CANCEL THIS MSG 270200Z AUG 23.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2023-08-23 16:00Z	2023-08-24 01:00Z	—	9 h
2023-08-24 16:00Z	2023-08-25 01:00Z	—	9 h
2023-08-25 16:00Z	2023-08-26 01:00Z	—	9 h
2023-08-26 16:00Z	2023-08-27 01:00Z	—	9 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

1115 within 180 nm since 1999 · 5 in the last 12 months · 5 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Hazardous operations 221600Z to 230100Z aug, alternate 1600Z to 0100Z daily 23 thru 26 aug in area bound by…cancelled by · 2023-08-21

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 · 49.3 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 · 65.8 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 · 89.9 nm
Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-33.00N 118-25.00W, 32-35.00N 118-16.00W,…Exercises · 118.2 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.