A High Surf Warning is posted for east facing shores of the Big Island through 6 a.m. Wednesday with wave heights rising to 12 to 18 foot faces in some spots Tuesday. Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel difficult. Large breaking surf, significant shore break and dangerous currents will make entering the water very hazardous. Boaters should be aware of an increased number of surfers in the water.
A Small Craft Advisory is posted for Big Island windward and southeastern waters as well as Alenuihaha channel through 6 a.m. Wednesday for rough seas up to 12 feet. Inexperienced mariners should avoid navigating in these conditions.
**Click directly on the images below to make them larger. Charts include: Big Island high/low forecasted temperatures, projected winds, chance of cloud cover, projected localized weather conditions, vog/SO2 forecast and expected wave heights.**
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SWIPE LEFT OR RIGHT
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Looking Ahead
Very humid conditions with spotty heavy showers and thunderstorms will continue through Tuesday as hurricane Ignacio passes northeast of the state. Northerly winds will decrease and gradually shift southerly by Wednesday, setting up an extended period of very humid weather with continued periods of heavy showers into the weekend.Ignacio is forecast to continue moving north of the state from Tuesday through Friday. During this time the system will block our trade winds and high humidity is expected. Winds will become variable on Tuesday then light southerly on Wednesday. Heat index values are likely to climb into the 90s with uncomfortably warm and sticky conditions expected. There may also be heavy rainfall and isolated thunderstorms Wednesday and Thursday as a moist and somewhat unstable air mass lingers over the islands following Ignacio’s departure.
Today
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Today we expect partly cloudy skies with a slight chance of showers in the morning. Mostly cloudy with chance of heavy showers and thunderstorms in the afternoon. High temperatures from 86° to 91°. Southwest winds from 10 to 15 mph.
UV index at 11 (“extreme” exposure level)
Tonight
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South winds are expected this evening around 15 mph. Low temperatures from 73° to 78°. Partly cloudy skies are expected with a chance of showers and hazy skies.
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