Meteorology · Weather Broadcasts — Sources at Sea
A mariner offshore can receive official marine weather forecasts and warnings through:
- ALocal AM music stations
- BOnly a smartphone weather app with cell signal
- CNAVTEX, HF radiofax (weatherfax), VHF/HF voice broadcasts, and Inmarsat SafetyNET✓ Correct
- DNo means exist offshore
Explanation
Offshore weather reaches vessels via NAVTEX (518 kHz coastal text), HF radiofax charts, scheduled VHF/HF voice broadcasts, and Inmarsat SafetyNET (Enhanced Group Call). These GMDSS-related services deliver forecasts, gale/storm warnings, and ice/navigational warnings beyond the range of consumer cellular service.
Authority: GMDSS; NWS marine broadcasts
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