Heavy Rainfall Possible Today for Big Island
Alerts (as of 1:00 a.m.)
Small Craft Advisory: ʻAlenuihāhā channel and waters around the Big Island through 6 a.m. Wednesday.
**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.**
Moderate trade winds are forecast for most of the work week. A disturbance to the west could trigger briefly heavy showers but for the most part rainfall should remain focused over windward and mauka areas. Isolated heavy showers could also develop over leeward areas in the afternoon. More stable conditions should return by the weekend.
We have east flow today from 10 to 20 mph. High temperatures are forecast from 81° to 86°. Mostly cloudy skies are forecast with showers likely in windward spots. For the Kona side, partly sunny skies to start with mostly cloudy skies and scattered showers in the afternoon. Locally heavy rainfall is possible.
UV index at 10 (“very high” exposure level)
East winds are forecast around 10 to 20 mph. Mostly cloudy skies are expected for Hawaii County with windward showers likely and scattered leeward showers. Low temperatures from 69° to 74°.
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