A High Surf Advisory is posted for the north and east facing shores of the Big Island through 6:00 a.m. Wednesday. Surf of 6 to 10 feet is expected. Expect strong breaking waves, shore break and strong longshore and rip currents making swimming difficult and dangerous.
A Small Craft Advisory is posted for all Big Island waters through 6 a.m. Tuesday for northeast winds up to to 30 knots and rough seas up to 15 feet. Inexperienced mariners should avoid navigating in these conditions.
A Gale Warning is posted through Tuesday morning at 6:00 a.m. for the ʻAlenuihāhā Channel. East winds up to 35 knots and rough seas up to 18 feet are forecasted. Mariners without the proper vessel and experience should remain in port until gale conditions end.
**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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Today
Partly to mostly cloudy skies are expected for the Hilo side with windward showers in the morning. Kona side should get sunshine in the morning with building cloud cover in the afternoon and scattered showers. Trade winds are forecasted from 15 to 30 mph. High temperatures from 81° to 86°.
UV index at 11 (“extreme” exposure level)
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Tonight
Scattered showers are expected for windward and mauka areas tonight. Leeward spots are forecasted to be cloudy with scattered showers in the evening, then clearing as the night goes on. Trade winds are forecasted from 15 to 30 mph. Low temperatures from 67° to 72° are expected.
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Looking Ahead
Strong trade winds are expected through Tuesday. The winds will focus clouds and showers over windward slopes and coasts, but a few showers will spread leeward from time to time. Showers are expected to be most active during nights and mornings. By the middle of the week, a disturbance near the state will turn winds to the southeast and weaken them for Kauai and Oahu. Maui and the Big Island are expected to remain under a trade wind flow throughout the week.
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