Surveys
Survey operations 291400Z to 300400Z oct by M/V robert gordon sproul in area bound by 32-38.36N 117-30.11W,…
Eastern North Pacific · California · NAVAREA XII 475/17
- issued
- 2017-10-25 08:50Z
- status
- cancelled 2017-10-30 05:00Z (archive)
- self-cancels
- 2017-10-30 05:00Z
- authority
- ROBERT GORDON SPROUL 122335Z OCT 17.
- sea
- North Pacific Ocean
- position
- 32.724, -117.512
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. SURVEY OPERATIONS 291400Z TO 300400Z OCT BY M/V ROBERT GORDON SPROUL IN AREA BOUND BY 32-38.36N 117-30.11W, 32-40.22N 117-31.81W, 32-49.00N 117-36.33W, 32-43.86N 117-26.30W, 32-42.67N 117-25.55W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 300500Z OCT 17.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2017-10-29 14:00Z | 2017-10-30 04:00Z | — | 14 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 · survey operations
13 within 180 nm since 2012 · 0 in the last 12 months · 0 in force now
12
15
20
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 170500Z jul until further notice by c/s ile de sein in 33-31.9N 118-21.0W2021-07-17
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Hazardous operations 191500Z to 202300Z aug in area within two miles of 32-35.87N 117-10.87WExercises · 18.3 nm
- Coronado island south light 32-23.5N 117-14.5W unlitNav aids · 24.2 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 · 39.1 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 · 44.7 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 · 68.7 nm
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…Exercises · 116.7 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.