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Due to space weather, hf communications may be disrupted by the effects of solar flares 11 and 12 nov

NAVAREA XII 800/23

issued: 2023-11-10 13:20Z
status: cancelled 2023-11-13 00:01Z (archive)
self-cancels: 2023-11-13 00:01Z
authority: NOAA SWPC 224/23 101310Z NOV 23.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. DUE TO SPACE WEATHER, HF COMMUNICATIONS
   MAY BE DISRUPTED BY THE EFFECTS OF SOLAR FLARES
   11 AND 12 NOV.
2. CANCEL THIS MSG 130001Z NOV 23.

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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.