index

HYDROARC warnings in force as of 181234Z dec 20: 309/20, 308/20, 307/20, 306/20, 249/20, 246/20, 245/20, 41/20

HYDROARC 310/20

issued: 2020-12-18 12:37Z
status: cancelled 2020-12-25 11:16Z (archive)
cancels: HYDROARC 273/20 HYDROARC 299/20
authority: SFH 181236Z DEC 20.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 181234Z DEC 20:
   309/20, 308/20, 307/20, 306/20, 249/20, 246/20,
   245/20, 41/20.
2. THE COMPLETE TEXT OF ALL IN-FORCE HYDROARC
   BROADCAST WARNINGS ARE AVAILABLE ON THE NGA
   MARITIME SAFETY INFORMATION WEBSITE AT:
   msi.nga.mil/NavWarnings.
   ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL
   FROM NGA AT [email protected].
3. CANCEL HYDROARC 273/20, 299/20.

Timeline

Dangerous wreck in 73-09.96N 080-16.97Ecancels · 2020-11-12
HYDROARC warnings in force as of 111308Z dec 20: 298/20, 297/20, 296/20, 287/20, 285/20, 284/20, 273/20,…cancels · 2020-12-11
Dangerous wreck in 73-09.96N 080-16.97Ereplaced · 2020-11-12
HYDROARC warnings in force as of 111308Z dec 20: 298/20, 297/20, 296/20, 287/20, 285/20, 284/20, 273/20,…replaced · 2020-12-11
HYDROARC warnings in force as of 251111Z dec 20: 312/20, 311/20, 309/20, 308/20, 249/20, 246/20, 245/20, 41/20cancelled by · 2020-12-25

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.