Other

Loran-c station attu, rate 5980-X, unusable 101600Z to 102000Z apr, alternate 111600Z to 112000Z apr

North Pacific · Alaska · HYDROPAC 731/10

issued: 2010-04-09 21:31Z
status: cancelled 2010-04-11 21:00Z (archive)
self-cancels: 2010-04-11 21:00Z
authority: COGARD NAVCEN PETALUMA 092020Z APR 10.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH PACIFIC.
ALASKA.
1. LORAN-C STATION ATTU, RATE 5980-X,
   UNUSABLE 101600Z TO 102000Z APR,
   ALTERNATE 111600Z TO 112000Z APR.
2. CANCEL THIS MSG 112100Z APR.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2010-04-10 16:00Z	2010-04-10 20:00Z	—	4 h
2010-04-11 16:00Z	2010-04-11 20:00Z	—	4 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 HYDROPAC 731/10 and this msg, station restoredcancelled by · 2010-04-10

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

34 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.