index

HYDROARC warnings in force as of 251111Z dec 20: 312/20, 311/20, 309/20, 308/20, 249/20, 246/20, 245/20, 41/20

HYDROARC 313/20

issued: 2020-12-25 11:16Z
status: cancelled 2021-01-01 16:29Z (archive)
cancels: HYDROARC 310/20
authority: SFH 251115Z DEC 20.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 251111Z DEC 20:
   312/20, 311/20, 309/20, 308/20, 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 310/20.

Timeline

HYDROARC warnings in force as of 181234Z dec 20: 309/20, 308/20, 307/20, 306/20, 249/20, 246/20, 245/20, 41/20cancels · 2020-12-18
HYDROARC warnings in force as of 181234Z dec 20: 309/20, 308/20, 307/20, 306/20, 249/20, 246/20, 245/20, 41/20replaced · 2020-12-18
HYDROARC warnings in force as of 011627Z jan 21: 308/20, 249/20, 246/20, 245/20, 41/20cancelled by · 2021-01-01

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.