Exercises

Hazardous operations 0730Z to 1501Z daily 26 thru 30 jul in areas bound by: a. 34-48N 120-59W, 34-49N…

HYDROPAC 1150/01

issued: 2001-07-20 12:50Z
status: cancelled 2001-07-23 22:40Z (archive)
self-cancels: 2001-07-30 16:01Z
authority: VAFB OP # W8805 171645Z JUL 01
sea: North Pacific Ocean
position: 31.983, -140.471
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0730Z TO 1501Z DAILY 
   26 THRU 30 JUL IN AREAS BOUND BY:
   A. 34-48N 120-59W, 34-49N 120-59W, 34-52N 120-36W, 34-50N 120-36W.
   B. 34-51N 122-08W, 34-58N 120-54W, 34-40N 120-52W, 34-33N 122-06W.
   C. 31-28N 143-36W, 32-29N 139-34W, 31-29N 139-13W, 30-29N 143-15W.
   D. 12-13N 171-22E, 13-10N 172-53E, 12-45N 173-10E, 11-48N 171-38E.
2. CANCEL THIS MSG 301601Z JUL.

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2001-07-26 07:30Z	2001-07-26 15:01Z	—	7 h 31
2001-07-27 07:30Z	2001-07-27 15:01Z	—	7 h 31
2001-07-28 07:30Z	2001-07-28 15:01Z	—	7 h 31
2001-07-29 07:30Z	2001-07-29 15:01Z	—	7 h 31
2001-07-30 07:30Z	2001-07-30 15:01Z	—	7 h 31

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

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

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Hazardous operations 0730Z to 1501Z daily 27 thru 31 jul in areas bound by: a. 34-48N 120-59W, 34-49N…cancelled by · 2001-07-23

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.