Surveys

Survey operations in progress until further notice by M/V ridley thomas along trackline joining 26-25S…

HYDROPAC 845/09

issued: 2009-04-30 10:55Z
status: cancelled 2009-05-11 20:10Z (archive)
cancels: HYDROPAC 836/09
authority: NAVAREA VII 89/09 300812Z APR 09.
position: -26.002, 33.281
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
   BY M/V RIDLEY THOMAS ALONG TRACKLINE JOINING
   26-25S 034-31E, 25-51S 033-06E,
   25-50S 033-00E, 25-49S 032-57E,
   25-49S 032-00E. 1.5 MILE BERTH REQUESTED.
2. CANCEL HYDROPAC 836/09.

This area · survey operations

3 within 180 nm since 2007 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until further notice by M/V ridley thomas along trackline joining 24-51S…cancels · 2009-04-28
Survey operations in progress until further notice by M/V ridley thomas along trackline joining 24-51S…replaced · 2009-04-28
Survey operations in progress until further notice by M/V ridley thomas along trackline joining 26-26S…cancelled by · 2009-05-11

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.