Surveys
Survey operations 120700Z to 190400Z sep by M/V robert gordon sproul in area between 34-30N 35-12N and…
Eastern North Pacific · California · NAVAREA XII 385/17
- issued
- 2017-09-05 02:22Z
- status
- cancelled 2017-09-19 05:00Z (archive)
- self-cancels
- 2017-09-19 05:00Z
- authority
- R/V Robert Gordon Sproul 132304Z AUG 17.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. SURVEY OPERATIONS 120700Z TO 190400Z SEP BY M/V ROBERT GORDON SPROUL IN AREA BETWEEN 34-30N 35-12N AND 120-30W 121-00W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 190500Z SEP 17.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2017-09-12 07:00Z | 2017-09-19 04:00Z | — | 165 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 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.