index

HYDROARC warnings in force as of 091146Z apr 21: 49/21, 47/21, 9/21

HYDROARC 50/21

issued: 2021-04-09 11:49Z
status: cancelled 2021-04-16 13:50Z (archive)
cancels: HYDROARC 48/21
authority: SFH 091149Z APR 21.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 091146Z APR 21:
   49/21, 47/21, 9/21.
   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 48/21.

Timeline

HYDROARC warnings in force as of 021202Z apr 21: 47/21, 46/21, 44/21, 9/21cancels · 2021-04-02
HYDROARC warnings in force as of 021202Z apr 21: 47/21, 46/21, 44/21, 9/21replaced · 2021-04-02
HYDROARC warnings in force as of 161348Z apr 21: 54/21, 53/21, 49/21, 9/21, 249/20, 245/20, 41/20, 2. the…cancelled by · 2021-04-16

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

10 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.