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Heavy Rain, Thunderstorms Possible for Another Day

August 22, 2017, 8:56 AM HST
* Updated August 22, 9:07 AM
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Image; James Grenz

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

Special Weather Statement: Coastal flooding associated with spring tides (King tides) is occurring and expected through mid-week. The greatest potential for flooding is during the peak daily tide.

Small Craft Advisory: Through 6 p.m. Thursday with winds up to 25 knots.

Check our breaking news section for any urgent weather alerts or updates to the weather alerts listed above.

**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

Thunderstorms and heavy showers are possible again today. Lots of moisture in the atmosphere combined with a disturbance high in the sky are keeping conditions unstable. Breezy trade winds and drier conditions are expected to return Wednesday. Trade winds are forecast to weaken a bit by the end of the weekend.

 

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Today

We expect northeast winds around 5 to 25 mph. High temperatures are forecast from 83° to 88°. Mostly cloudy skies with showers likely for windward spots and scattered afternoon showers for the Kona side. There is a slight chance of thunderstorms and locally heavy rainfall is again possible.

UV index at 12 (“extreme” exposure level)

 

Tonight 

Northeast winds are forecast up to 5 to 20 mph. Mostly cloudy skies with showers likely for windward areas and scattered leeward showers. Low temperatures from 69° to 74°.

 

Our Big Island Now Weather homepage always includes daily: Sunrise | Sunset | Moonrise | Moonset | Moon Phase | Live Weather Cams | 5-day Forecast | Current Temperature & Conditions

**Click here for your detailed Big Island surf report.**

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

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