index

HYDROARC warnings in force as of 211611Z jul 17: 158/17, 157/17, 156/17, 154/17, 152/17, 151/17, 150/17,…

HYDROARC 159/17

issued: 2017-07-21 16:14Z
status: cancelled 2017-07-28 10:39Z (archive)
cancels: HYDROARC 144/17
authority: SFHGA 211614Z JUL 17.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 211611Z JUL 17:
   158/17, 157/17, 156/17, 154/17, 152/17, 151/17,
   150/17, 149/17, 148/17, 146/17, 143/17, 142/17,
   140/17, 139/17, 138/17, 135/17, 134/17, 132/17,
   124/17, 123/17, 121/17, 119/17, 104/17, 97/17,
   81/17, 72/17, 59/17, 57/17, 44/17.
   222/16, 221/16, 220/16, 205/16, 155/16.
   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 144/17.

Timeline

HYDROARC warnings in force as of 141545Z jul 17: 143/17, 142/17, 141/17, 140/17, 139/17, 138/17, 135/17,…cancels · 2017-07-14
HYDROARC warnings in force as of 141545Z jul 17: 143/17, 142/17, 141/17, 140/17, 139/17, 138/17, 135/17,…replaced · 2017-07-14
HYDROARC warnings in force as of 281038Z jul 17: 174/17, 173/17, 172/17, 170/17, 169/17, 168/17, 165/17,…cancelled by · 2017-07-28

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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.