Exercises
Hazardous operations 101730Z to 102130Z and 121730Z to 122130Z jun in area bound by 34-37N 121-19W, 34-06N…
Eastern North Pacific · California · NAVAREA XII 237/20
- issued
- 2020-06-05 22:37Z
- status
- cancelled 2020-06-10 21:45Z (archive)
- self-cancels
- 2020-06-12 22:30Z
- authority
- SEA RANGE OTC 052145Z JUN 20.
- sea
- North Pacific Ocean
- position
- 34.346, -121.335
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS 101730Z TO 102130Z AND 121730Z TO 122130Z JUN IN AREA BOUND BY 34-37N 121-19W, 34-06N 121-03W, 34-01N 121-21W, 34-42N 121-37W. 2. CANCEL THIS MSG 122230Z JUN 20.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-06-10 17:30Z | 2020-06-10 21:30Z | — | 4 h |
| 2020-06-12 17:30Z | 2020-06-12 21:30Z | — | 4 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
1044 within 180 nm since 1999 · 6 in the last 12 months · 3 in force now
99
00
05
10
15
20
25
26
- Hazardous operations 251300Z to 252100Z aug, alternate 261300Z to 262100Z aug in area bound by 33-37.00N…2026-08-20
- Hazardous operations 251400Z to 252000Z aug, alternate 261400Z to 262000Z aug in area within 56 miles of…2026-08-20
- Hazardous operations 221200Z to 230100Z aug, alternate 1230Z to 0100Z daily 23 and 24 aug in area bound by:…2026-08-17
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…2026-08-13
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…2026-07-23
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-52.70N 119-11.96W, 33-08.06N 118-52.09W,…2026-07-23
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 237/20 and this msg, operations completedcancelled by · 2020-06-10
Nearby now · 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.