A Small Craft Advisory is posted for the ʻAlenuihāhā channel as well as waters to the west and south of the Big Island through 6 a.m. Wednesday. East winds up to 25 knots are expected along with rough seas of up to 12 feet. Inexperienced mariners should avoid navigating in these conditions.
A High Surf Advisory is posted for the south facing shores of all islands through 6 a.m. Tuesday for 5 to 8 foot faces. Expect strong breaking waves, shore break and strong longshore and rip currents making swimming difficult and dangerous.
**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
Breezy trade winds are expected to stick around through the weekend. Showers are forecast to continue moving across the islands during the next several days with rainfall focusing over windward and mauka areas. Some of the larger showers will reach leeward locations at times. Daytime heating will cause clouds and showers to develop over the Kona slopes each afternoon.
Today
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We expect partly to mostly cloudy skies for windward Big Island with showers likely in the morning. The Kona side will be partly cloudy to start and mostly cloudy with scattered showers each afternoon. Some of those showers may be heavy. High temperatures from 84° to 89°. Northeast winds from 15 to 25 mph.
UV index at 11 (“extreme” exposure level)
Tonight
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Northeast winds are expected in the evening from 15 to 25 mph. Low temperatures from 72° to 77°. Mostly cloudy skies are expected in the evening with showers likely for windward spots. Leeward spots should get scattered showers in the evening with a clearing trend as the night goes on.
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