High surf forecast for Big Island



Photography by Baron Sekiya | Hawaii 24/7

MARINE WEATHER STATEMENT

NATIONAL WEATHER SERVICE HONOLULU HI

444 AM HST WED JAN 19 2011

Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters- Kaiwi Channel-Maui County Windward Waters- Maui County Leeward Waters-Alenuihaha Channel- Big Island Windward Waters-Big Island Leeward Waters- Big Island Southeast Waters-

444 AM HST WED JAN 19 2011

…Large west-northwest swell to build today and tonight… …locally gusty winds and frequent lightning with thunderstorms today…

A large west-northwest swell will build today and tonight…peaking Thursday and Thursday night. the swell will produce hazardous conditions at harbors exposed to the west…with breaking waves at harbor entrances creating dangerous conditions for vessels entering or leaving port. strong currents and moderate to strong surges are also possible within and near harbors…due to the long-period swell.

In addition…thunderstorms will develop over island waters today…with the greatest threat over Maui and Big Island waters. these thunderstorms will be prolific lightning producers…and will also produce locally gusty winds…making for hazardous boating conditions. If caught in a thunderstorm on the open water…stay below deck.

Waterspouts may also form in association with developing showers and thunderstorms today. Waterspouts can swamp or overturn small craft…stay away from them at all times.