index

HYDROARC warnings in force as of 151512Z oct 21: 286/21, 284/21, 281/21, 279/21, 278/21, 276/21, 270/21,…

HYDROARC 287/21

issued: 2021-10-15 15:34Z
status: cancelled 2021-10-22 15:12Z (archive)
cancels: HYDROARC 274/21
authority: SFH 151531Z OCT 21.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROARC WARNINGS IN FORCE AS OF 151512Z OCT 21:
   286/21, 284/21, 281/21, 279/21, 278/21, 276/21,
   270/21, 257/21, 253/21, 241/21, 232/21, 211/21,
   208/21, 207/21, 205/21, 203/21, 190/21, 186/21,
   176/21, 167/21, 166/21, 145/21, 141/21.
   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 274/21.

Timeline

HYDROARC warnings in force as of 081021Z oct 21: 273/21, 272/21, 271/21, 270/21, 269/21, 268/21, 257/21,…cancels · 2021-10-08
HYDROARC warnings in force as of 081021Z oct 21: 273/21, 272/21, 271/21, 270/21, 269/21, 268/21, 257/21,…replaced · 2021-10-08
HYDROARC warnings in force as of 221509Z oct 21: 297/21, 296/21, 295/21, 293/21, 292/21, 290/21, 286/21,…cancelled by · 2021-10-22

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.