Nav aids

Coast guard marsec guam all hf services off air 150100Z to 151100Z and 160100Z to 161100Z oct

U.S · HYDROPAC 1743/05

issued: 2005-10-14 00:35Z
status: cancelled 2005-10-16 12:00Z (archive)
self-cancels: 2005-10-16 12:00Z
cancels: HYDROPAC 1742/05
authority: COGARD CAMSPAC PT REYES CA 131746Z OCT 05.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. U.S. COAST GUARD MARSEC GUAM ALL HF SERVICES
   OFF AIR 150100Z TO 151100Z AND 160100Z TO 161100Z OCT.
2. CANCEL HYDROPAC 1742/05.
3. CANCEL THIS MSG 161200Z OCT.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2005-10-15 01:00Z	2005-10-15 11:00Z	—	10 h
2005-10-16 01:00Z	2005-10-16 11:00Z	—	10 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Timeline

Coast guard marsec guam hf dsc off air 150100Z to 151100Z and 160100Z to 161100Z octcancels · 2005-10-13
Coast guard marsec guam hf dsc off air 150100Z to 151100Z and 160100Z to 161100Z octreplaced · 2005-10-13

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

193 aids-to-navigation notices in force · see all

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.