Nav aids

Digital selective calling and high-frequency radio are unreliable from 091530Z to 100330Z September at Coast Guard remote facilities in Boston, Chesapeake, Charleston, Miami, New Orleans, and San Juan.

North Atlantic · NAVAREA IV 866/26

issued
2026-09-09 09:47Z
status
cancelled 2026-09-09 13:15Z (dropped from inforce)
self-cancels
2026-09-10 04:30Z
sea
North Atlantic Ocean
position
30.878, -77.316
source
nga_inforce · first seen 2026-09-09 18:02Z

Original warning text

NORTH ATLANTIC.
1. DSC AND HF UNRELIABLE 091530Z TO 100330Z SEP
   AT USCG REMOTE COMMUNICATION FACILITIES:
   A. BOSTON 41-43.00N 070-31.00W.
   B. CHESAPEAKE 36-44.00N 076-01.00W.
   C. CHARLESTON 32-50.70N 079-57.00W.
   D. MIAMI 25-37.40N 080-23.40W.
   E. NEW ORLEANS 29-53.00N 089-57.00W.
   F. SAN JUAN 18-28.00N 067-04.30W.
2. CANCEL THIS MSG 100430Z SEP 26.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2026-09-09 15:30Z2026-09-10 03:30Z—12 h

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

This area · aids-to-navigation notices

62 within 180 nm since 1998 · 4 in the last 12 months · 1 in force now

98
00
05
10
15
20
25
26

Season · when aids-to-navigation notices happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

180 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.