index

HYDROARC warnings in force as of 011054Z jun 18: 99/18, 98/18, 96/18, 75/18, 74/18, 72/18, 58/18, 38/18

HYDROARC 100/18

issued: 2018-06-01 10:55Z
status: cancelled 2018-06-08 17:25Z (archive)
cancels: HYDROARC 95/18
authority: SFH 011053Z JUN 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 011054Z JUN 18:
   99/18, 98/18, 96/18, 75/18, 74/18, 72/18,
   58/18, 38/18.
   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 95/18.

Timeline

HYDROARC warnings in force as of 251707Z may 18: 94/18, 93/18, 92/18, 87/18, 84/18, 75/18, 74/18, 72/18,…cancels · 2018-05-25
HYDROARC warnings in force as of 251707Z may 18: 94/18, 93/18, 92/18, 87/18, 84/18, 75/18, 74/18, 72/18,…replaced · 2018-05-25
HYDROARC warnings in force as of 081725Z jun 18: 114/18, 112/18, 110/18, 109/18, 108/18, 107/18, 106/18,…cancelled by · 2018-06-08

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.