index

HYDROARC warnings in force as of 191420Z feb 21: 26/21, 25/21, 23/21, 9/21, 8/21

HYDROARC 27/21

issued: 2021-02-19 14:23Z
status: cancelled 2021-02-26 14:58Z (archive)
cancels: HYDROARC 24/21
authority: SFH 191423Z FEB 21.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 191420Z FEB 21:
   26/21, 25/21, 23/21, 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 24/21.

Timeline

HYDROARC warnings in force as of 121334Z feb 21: 23/21, 22/21, 21/21, 9/21, 8/21, 249/20, 245/20, 41/20cancels · 2021-02-12
HYDROARC warnings in force as of 121334Z feb 21: 23/21, 22/21, 21/21, 9/21, 8/21, 249/20, 245/20, 41/20replaced · 2021-02-12
HYDROARC warnings in force as of 261457Z feb 21: 29/21, 28/21, 9/21, 8/21cancelled by · 2021-02-26

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.