index

HYDROARC warnings in force as of 261457Z feb 21: 29/21, 28/21, 9/21, 8/21

HYDROARC 30/21

issued: 2021-02-26 14:58Z
status: cancelled 2021-03-05 15:09Z (archive)
cancels: HYDROARC 27/21
authority: SFH 261458Z FEB 21.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 261457Z FEB 21:
   29/21, 28/21, 9/21, 8/21.
   249/20, 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 27/21.

Timeline

HYDROARC warnings in force as of 191420Z feb 21: 26/21, 25/21, 23/21, 9/21, 8/21cancels · 2021-02-19
HYDROARC warnings in force as of 191420Z feb 21: 26/21, 25/21, 23/21, 9/21, 8/21replaced · 2021-02-19
HYDROARC warnings in force as of 051507Z mar 21: 32/21, 31/21, 29/21, 9/21, 8/21cancelled by · 2021-03-05

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

9 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.