Other

Admiralty total tides 2020 advisory

HYDROLANT 746/20

issued: 2020-02-28 18:31Z
status: cancelled 2020-04-01 00:01Z (archive)
authority: SFH 281831Z FEB 20.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

ADMIRALTY TOTAL TIDES 2020 ADVISORY.
1. BE ADVISED THAT ADMIRALTY TOTAL TIDES (ATT) DISCS
   DISTRIBUTED IN LATE 2019 (EDITION 21) MAY NOT
   INSTALL CORRECTLY. NGA RECOMMENDS INSTALLING
   EDITION 21 OVER A PREVIOUS VERSION OF ATT.
   OTHERWISE, IT MAY NOT INSTALL CORRECTLY.
2. ATT HAS BEEN CORRECTED AND EDITION 22 WILL BE
   DISTRIBUTED BY DLA AS SOON AS POSSIBLE.
3. ATT, EDITION 20, WILL REMAIN VALID UNTIL 31 MAR 20.
4. CANCEL THIS MSG 01 APR 20.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

37 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.