index
HYDROARC warnings in force as of 131614Z aug 21: 180/21, 179/21, 178/21, 177/21, 176/21, 169/21, 167/21,…
HYDROARC 181/21
- issued
- 2021-08-13 16:18Z
- status
- cancelled 2021-08-20 11:37Z (archive)
- cancels
- HYDROARC 170/21
- authority
- SFH 131618Z AUG 21.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROARC WARNINGS IN FORCE AS OF 131614Z AUG 21: 180/21, 179/21, 178/21, 177/21, 176/21, 169/21, 167/21, 166/21, 155/21, 153/21, 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 170/21.
Timeline
- HYDROARC warnings in force as of 061246Z aug 21: 169/21, 167/21, 166/21, 165/21, 164/21, 163/21, 155/21,…cancels · 2021-08-06
- HYDROARC warnings in force as of 061246Z aug 21: 169/21, 167/21, 166/21, 165/21, 164/21, 163/21, 155/21,…replaced · 2021-08-06
- HYDROARC warnings in force as of 201058Z aug 21: 193/21, 192/21, 190/21, 187/21, 186/21, 184/21, 183/21,…cancelled by · 2021-08-20
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.