A High Surf Warning is posted for northeast facing shores of the Big Island through 6 p.m. Wednesday. Wave heights are expected to rise to 20 to 30 foot faces along north shores and 15 to 20 feet for west shores.
A Marine Weather Statement is posted for the large north-northwest swell the is currently affecting the islands. Moderate harbor surges and large breaking waves are expected at harbor entrances open to this swell. That includes Kahului and Hilo harbors. Mariners should use extreme caution when entering or leaving port and when mooring or launching vessels.
A Small Craft Advisory is posted for all Big Island channels and windward waters through 6 p.m. Wednesday. Northeast winds up to 25 knots and hazardous seas up to about 12 feet are expected.
**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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Looking Ahead
Moisture from an old frontal boundary is expected to linger bringing some light showers affecting mainly windward and mauka areas across the state. Moderate to fresh trades are forecast through Wednesday. Another front approaching the state is expected to cut off our trade winds from late Wednesday through the weekend.
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Today
Today partly sunny skies are expected with scattered windward showers. Scattered afternoon showers are possible as the sea breeze develops for the Kona side. High temperatures from 82° to 87°. East winds are forecast around 15 mph.
UV index at 8 (“very high” exposure level)
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Tonight
Variable winds are expected in the evening up to 15 mph. Low temperatures from 68° to 73°. Mostly cloudy skies are expected in the evening with scattered showers for windward spots. Leeward spots should see clearing as the night goes on.
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