Severe · Special Marine WarningActive alert
Special Marine Warning issued October 30 at 2:04AM HST until October 30
Affecting Big Island Windward Waters
In effect until: Oct 30, 2026, 2:00 PM
Big Island Windward Waters
Likely impact; effects through 2:00 PM.
Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. Frequent lightning is occurring with this storm. If caught on the open water, stay below deck if possible.
Read the original bulletin (official text)
SMWHFO The National Weather Service in Honolulu has issued a * Special Marine Warning for... Big Island Windward Waters... * Until 400 AM HST. * At 203 AM HST, a severe thunderstorm capable of producing waterspouts was located over Isaac Hale Beach Park, moving east at 5 knots. HAZARD...Waterspouts and wind gusts to 40 knots. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... FAD Buoy D and FAD Buoy KH.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™