index

HYDROARC warnings in force as of 031548Z aug 18: 167/18, 165/18, 163/18, 162/18, 161/18, 160/18, 158/18,…

HYDROARC 169/18

issued: 2018-08-03 15:50Z
status: cancelled 2018-08-10 11:07Z (archive)
cancels: HYDROARC 153/18 HYDROARC 166/18
authority: SFH 031549Z AUG 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 031548Z AUG 18:
   167/18, 165/18, 163/18, 162/18, 161/18, 160/18,
   158/18, 154/18, 150/18, 147/18, 146/18, 145/18,
   142/18, 114/18.
   322/17, 307/17, 306/17, 293/17, 288/17, 274/17,
   267/17, 228/17, 189/17, 188/17, 139/17.
   205/16, 155/16.
   345/15, 343/15.
   269/14, 268/14, 131/14, 131/14.
   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 153/18, 166/18.

Timeline

S/V fredoya, six persons on board, unreported upernavik (072-47N 56-09W)cancels · 2018-07-14
HYDROARC warnings in force as of 271159Z jul 18: 165/18, 163/18, 162/18, 161/18, 160/18, 158/18, 154/18,…cancels · 2018-07-27
S/V fredoya, six persons on board, unreported upernavik (072-47N 56-09W)replaced · 2018-07-14
HYDROARC warnings in force as of 271159Z jul 18: 165/18, 163/18, 162/18, 161/18, 160/18, 158/18, 154/18,…replaced · 2018-07-27
HYDROARC warnings in force as of 101106Z aug 18: 177/18, 176/18, 175/18, 174/18, 173/18, 170/18, 167/18,…cancelled by · 2018-08-10

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

11 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.