index

HYDROARC warnings in force as of 251537Z aug 17: 226/17, 225/17, 224/17, 222/17, 221/17, 218/17, 217/17,…

HYDROARC 227/17

issued
2017-08-25 15:38Z
status
cancelled 2017-09-01 16:47Z (archive)
cancels
HYDROARC 193/17HYDROARC 215/17
authority
SFHGA 251537Z AUG 17.
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 251537Z AUG 17:
   226/17, 225/17, 224/17, 222/17, 221/17, 218/17,
   217/17, 211/17, 204/17, 203/17, 201/17, 197/17,
   189/17, 188/17, 182/17, 180/17, 179/17, 164/17,
   163/17, 156/17, 152/17, 151/17, 150/17, 148/17,
   139/17, 138/17, 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 193/17, 215/17.

Timeline

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.