Nav aids

Coast guard station boston off air 171200Z to 171500Z apr

Western North Atlantic · Massachusetts · Radio Services · U.S · NAVAREA IV 171/12

issued: 2012-04-12 05:36Z
status: cancelled 2012-04-17 16:00Z (archive)
self-cancels: 2012-04-17 16:00Z
authority: COGARD CAMSLANT 091903Z APR 12.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
MASSACHUSETTS.
RADIO SERVICES.
1. U.S. COAST GUARD STATION BOSTON OFF AIR
   171200Z TO 171500Z APR. BOSTON NAVTEX
   BROADCAST AT 1245Z WILL BE TRANSMITTED
   OUT OF  U.S. COAST GUARD STATION
   CHESAPEAKE, VIRGINIA.
2. CANCEL THIS MSG 171600Z APR.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2012-04-17 12:00Z	2012-04-17 15:00Z	—	3 h

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

Timeline

Cancel NAVAREA IV 171/12 and this msg, station restoredcancelled by · 2012-04-17

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.