Nav aids

Coast Guard high frequency digital selective calling and transmissions are unreliable at Boston, Chesapeake, Charleston, Miami, New Orleans and San Juan until 11 September.

North Atlantic · NAVAREA IV 869/26

issued
2026-09-10 00:40Z
status
cancelled 2026-09-10 13:50Z (dropped from inforce)
self-cancels
2026-09-11 04:00Z
sea
North Atlantic Ocean
position
30.878, -77.316
source
nga_inforce · first seen 2026-09-10 14:02Z

Original warning text

NORTH ATLANTIC.
1. HF DSC AND TRANSMIT UNRELIABLE 101400Z
   TO 110300Z 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 110400Z SEP 26.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2026-09-10 14:00Z2026-09-11 03:00Z—13 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

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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.