Nav aids

Due to space weather, hf communications and GNSS positional information may be disrupted by the effects of…

HYDROARC 152/23

issued: 2023-08-05 05:34Z
status: cancelled 2023-08-05 13:00Z (archive)
self-cancels: 2023-08-05 13:00Z
authority: NOAA SWPC 0/23 050530Z AUG 23.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. DUE TO SPACE WEATHER, HF COMMUNICATIONS AND
   GNSS POSITIONAL INFORMATION MAY BE DISRUPTED
   BY THE EFFECTS OF SOLAR FLARES.
2. DURING INCIDENTS AT SEA, MARINERS SHOULD CHECK THEIR
   POSITION USING ALL ALTERNATE MEANS AVAILABLE.
3. CANCEL THIS MSG 051300Z AUG 23.

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.