Nav aids

Mf and hf services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W

NAVAREA IV 986/21

issued: 2021-10-30 05:49Z
status: cancelled 2021-11-02 14:04Z (archive)
authority: COGARD COMMUNICATIONS COMMAND 292209Z OCT 21.
sea: North Atlantic Ocean
position: 39.221, -73.257
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

MF AND HF SERVICES UNRELIABLE
AT USCG REMOTE COMMUNICATION FACILITIES:
A. BOSTON (F) 41-42.8N 070-30.3W.
B. PORTSMOUTH (N) 36-43.7N 076-00.6W.

This area · aids-to-navigation notices

8 within 180 nm since 2001 · 0 in the last 12 months · 0 in force now

GPS unreliable 19 thru 23 oct in area within 49 miles of 39-07-38N 075-28-05W2020-10-14
NAVTEX station chesapeake (n) 36-43.7N 076-00.6W off air2019-09-06
Nos chart 12300 (46TH ed)2010-12-15
Nga chart 12300 (46TH ed)2008-04-17
GPS unreliable 071900Z to 072200Z, 080001Z to 080300Z and 081400Z to 081700Z feb within 50 miles of 36-50.0N…2006-02-06
Odas buoy 44004, FL(4) y 20 sec established in 38-30.2N 070-28.3W2001-01-30

Season · when aids-to-navigation notices happen here

month of issue, all years in the archive

Timeline

Uscg remote communication facility boston (f) 41-42.8N 070-30.3W mf and hf services unreliablecancelled by · 2021-11-02

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.