index

HYDROARC warnings in force as of 171346Z sep 21: 234/21, 233/21, 232/21, 230/21, 229/21, 227/21, 226/21,…

HYDROARC 236/21

issued
2021-09-17 13:52Z
status
cancelled 2021-09-24 13:25Z (archive)
cancels
HYDROARC 201/21HYDROARC 223/21HYDROARC 231/21
authority
SFH 171351Z SEP 21.
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 171346Z SEP 21:
   234/21, 233/21, 232/21, 230/21, 229/21, 227/21,
   226/21, 218/21, 211/21, 208/21, 207/21, 205/21,
   203/21, 190/21, 186/21, 178/21, 176/21, 167/21,
   166/21, 145/21, 141/21, 138/21, 58/21.
   249/20, 245/20, 41/20.
2. THE COMPLETE TEXT OF ALL IN-FORCE HYDROARC
   BROADCAST WARNINGS ARE AVAILABLE ON THE NGA
   MARITIME SAFETY INFORMATION WEBSITE AT:
   msi.nga.mil/NavWarnings.
   ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL
   FROM NGA AT [email protected].
3. CANCEL HYDROARC 201/21, 223/21, 231/21.

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

8 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.