index

HYDROARC warnings in force as of 181059Z aug 17: 211/17, 207/17, 204/17, 203/17, 201/17, 199/17, 197/17,…

HYDROARC 215/17

issued: 2017-08-18 10:59Z
status: cancelled 2017-08-25 15:38Z (archive)
cancels: HYDROARC 206/17
authority: SFHGA 181059Z AUG 17.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 181059Z AUG 17:
   211/17, 207/17, 204/17, 203/17, 201/17, 199/17,
   197/17, 193/17, 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 206/17.

Timeline

HYDROARC warnings in force as of 111656Z aug 17: 204/17, 203/17, 201/17, 199/17, 197/17, 193/17, 189/17,…cancels · 2017-08-11
HYDROARC warnings in force as of 111656Z aug 17: 204/17, 203/17, 201/17, 199/17, 197/17, 193/17, 189/17,…replaced · 2017-08-11
HYDROARC warnings in force as of 251537Z aug 17: 226/17, 225/17, 224/17, 222/17, 221/17, 218/17, 217/17,…cancelled by · 2017-08-25

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.