index
HYDROARC warnings in force 310900Z dec 11
HYDROARC 242/11
- issued
- 2011-12-31 08:57Z
- status
- cancelled 2012-01-28 10:16Z (archive)
- cancels
- HYDROARC 60/10HYDROARC 236/11
- authority
- SHGA 31 DEC 11.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROARC WARNINGS IN FORCE 310900Z DEC 11. ONLY THOSE WARNINGS ISSUED DURING THE LAST SIX WEEKS ARE LISTED HEREIN. 2011 SERIES: 239(16), 241(42). 2. CANCEL HYDROARC 60/10, 236/11.
Timeline
- Seismic survey in progress until further notice by M/V geo celtic towing 12 4000 meter long cables in area…cancels · 2010-08-15
- HYDROARC warnings in force 030900Z dec 11cancels · 2011-12-03
- Seismic survey in progress until further notice by M/V geo celtic towing 12 4000 meter long cables in area…replaced · 2010-08-15
- HYDROARC warnings in force 030900Z dec 11replaced · 2011-12-03
- HYDROARC warnings in force 280900Z jan 12cancelled by · 2012-01-28
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
8 index warnings in force
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.