Meteorology · Marine Warnings — Special Marine Warning
A Special Marine Warning is issued for:
- ALong-term climate change
- BA routine 5-day outlook
- CShort-fused hazardous conditions such as severe thunderstorms, waterspouts, or sudden strong winds not covered by existing warnings✓ Correct
- DTidal predictions
Explanation
A Special Marine Warning covers brief but dangerous events — severe thunderstorms, waterspouts, or sudden gusty winds (commonly 34 kt or more) and frequent lightning — expected within about two hours and not already addressed by a current marine forecast/warning. It is broadcast urgently on VHF.
Authority: NWS marine warnings
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