index

HYDROARC warnings in force as of 141404Z apr 17: 57/17, 56/17, 44/17, 10/17

HYDROARC 58/17

issued: 2017-04-14 14:04Z
status: cancelled 2017-04-21 15:22Z (archive)
cancels: HYDROARC 55/17
authority: SFHGA 141400Z APR 17.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 141404Z APR 17:
   57/17, 56/17, 44/17, 10/17.
   222/16, 221/16, 220/16, 205/16, 155/16, 124/16.
   345/15, 343/15, 320/15, 248/15.
   269/14, 268/14, 131/14.
   220/12, 193/12, 112/12.
2. THE COMPLETE TEXT OF ALL IN-FORCE HYDROARC
   BROADCAST WARNINGS ARE AVAILABLE ON THE NGA
   MARITIME SAFETY INFORMATION WEBSITE AT:
   msi.nga.mil/NGAPortal/MSI.portal.
   ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL
   FROM NGA AT [email protected].
3. CANCEL HYDROARC 55/17.

Timeline

HYDROARC warnings in force as of 071535Z apr 17: 50/17, 49/17, 44/17, 10/17cancels · 2017-04-07
HYDROARC warnings in force as of 071535Z apr 17: 50/17, 49/17, 44/17, 10/17replaced · 2017-04-07
HYDROARC warnings in force as of 211521Z apr 17: 60/17, 59/17, 57/17, 44/17, 10/17cancelled by · 2017-04-21

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.