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Slight Chance of Thunderstorms Today

April 13, 2017, 1:37 AM HST
* Updated April 12, 10:41 PM
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Image; James Grenz

Alerts (as of 1:00 a.m.)

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**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

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Our winds are expected to become light and variable Thursday night into Friday. This means our weather pattern will change allowing for a land and sea breeze pattern to take hold. Conditions are iffy with a disturbance nearby which could stir up some action in the form of heavy rain and a slight chance of thunderstorms. Meanwhile, showers will continue to focus over our usual windward and mauka spots through Thursday morning. By afternoon, we could see cloud cover building for leeward spots instead with a chance of rain and unstable conditions. Trade winds this weekend will bring us back to windward focused showers with strengthening trade winds from Sunday through Tuesday bringing an increase in windward showers.

 

Today 

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We have northeast flow today from 5 to 15 mph with afternoon sea breezes developing for leeward areas. High temperatures are forecast from 81° to 86°. Partly cloudy skies are forecast with scattered showers 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 with a slight chance of thunderstorms.

UV index at 10 (“very high” exposure level)

 

Tonight 

Northeast winds are forecast around 5 to 15 mph with land breezes developing. Mostly cloudy skies are expected for Hawaii County with scattered windward showers and clearing skies for the Kona side. Low temperatures from 68° to 73°.

 

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Image; NOAA

Image; NOAA

Image; NOAA

Image; NOAA

Image; NOAA

Image; NOAA

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