index

HYDROARC warnings in force as of 291050Z oct 21: 304/21, 303/21, 302/21, 301/21, 300/21, 299/21, 297/21,…

HYDROARC 305/21

issued: 2021-10-29 12:05Z
status: cancelled 2021-11-05 12:19Z (archive)
cancels: HYDROARC 298/21
authority: SFH 291205Z OCT 21.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 291050Z OCT 21:
   304/21, 303/21, 302/21, 301/21, 300/21, 299/21,
   297/21, 290/21, 286/21, 281/21, 278/21, 270/21,
   257/21, 241/21, 232/21, 208/21, 207/21, 205/21,
   203/21, 190/21, 186/21, 176/21, 167/21, 166/21,
   145/21.
   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 298/21.

Timeline

HYDROARC warnings in force as of 221509Z oct 21: 297/21, 296/21, 295/21, 293/21, 292/21, 290/21, 286/21,…cancels · 2021-10-22
HYDROARC warnings in force as of 221509Z oct 21: 297/21, 296/21, 295/21, 293/21, 292/21, 290/21, 286/21,…replaced · 2021-10-22
HYDROARC warnings in force as of 051210Z nov 21: 311/21, 308/21, 304/21, 299/21, 290/21, 286/21, 281/21,…cancelled by · 2021-11-05

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.