Surveys
Underwater operations 170500Z jul until further notice by c/s ile de sein in 33-31.9N 118-21.0W
Eastern North Pacific · California · NAVAREA XII 331/21
- issued
- 2021-07-17 00:21Z
- status
- cancelled 2021-07-18 02:58Z (archive)
- authority
- ILE DE SEIN 170011Z JUL 21.
- sea
- North Pacific Ocean
- position
- 33.532, -118.350
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. UNDERWATER OPERATIONS 170500Z JUL UNTIL FURTHER NOTICE BY C/S ILE DE SEIN IN 33-31.9N 118-21.0W. TWO MILE BERTH REQUESTED.
This area · survey operations
23 within 180 nm since 2012 · 0 in the last 12 months · 0 in force now
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23
- California 1. underwater operation 280700Z to 282359Z jul by M/V atlantis in area within two miles of…2023-07-27
- Underwater operations by M/V atlantis and submersible alvin: a. 270700Z to 280001Z jul in area within two…2023-07-26
- Underwater operations by r/v atlantis and dsv alvin 0700Z to 2359Z daily: a. 16 jul in area within 2 miles…2023-07-11
- Underwater operations 240900Z jun to 120900Z jul by M/V atlantis with submersible alvin in area bound by…2023-06-19
- Underwater operations 081400Z to 090200Z dec by M/V rebekah and usv sea hunter in areas bound by: a.…2022-12-03
- Underwater operations 051500Z thru 210001Z nov by M/V sally ride in area bound by 29-50.76N 123-35.22W,…2022-11-02
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 331/21 and this msg, operations completedcancelled by · 2021-07-18
Nearby now · within 120 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 · 45.3 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 · 48.1 nm
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…Exercises · 58.1 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 · 78.6 nm
- Hazardous operations 191500Z to 202300Z aug in area within two miles of 32-35.87N 117-10.87WExercises · 81.3 nm
- Coronado island south light 32-23.5N 117-14.5W unlitNav aids · 88.3 nm
Worldwide now
84 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.