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Increased Moisture Expected Today

October 12, 2017, 1:22 AM HST (Updated October 11, 2017, 10:31 PM) · 0 Comments
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Image: James Grenz

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

Special Weather Statement: Strengthening trade winds will bring moisture over Hawaii from the east which will interact with an approaching upper level trough from the north. Windward and mauka showers will increase in coverage as the moisture arrives overnight and Thursday. The upper trough will destabilize the atmosphere over us Thursday night or Friday allowing for locally heavy passing showers at times through the weekend. The trade winds will focus more of the rain windward and mauka, but many of the showers will also reach leeward sides. Trade winds will further strengthen this weekend and result in blustery conditions. Showers will begin to taper off late Sunday as the moisture moves west of the area and the upper trough lifts to the northeast. The breezy trade winds will remain into early next week.

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

    Trade winds are forecast to pick up in strength Thursday and become breezy by late Friday into next week. Enhanced showers are forecast for Thursday night through the weekend as a surge of moisture moves over the islands and a disturbance passes overhead. Rain will continue to favor our usual windward and mauka spots, but many passing showers will also reach leeward areas over the next several days.

     

    Today 

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    We expect east winds around 15 to 20 mph today. Partly to mostly cloudy skies are forecast with numerous windward showers and scattered leeward showers in the afternoon. Hazy skies in some spots. Temperatures up to 83° to 88°.

    UV index at 9 (“very high” exposure level)

     

    Tonight 

    Mostly cloudy skies with numerous windward showers and scattered leeward showers. Low temperatures from 72° to 77°. Winds are expected to be out of the east around 15 to 20 mph.

     

    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

    Malika Dudley
    Malika was born and raised in Hilo. She began her career in news at KGMB9 in 2007. As a part of their weather team, Malika was nominated for two Emmy Awards and won the prestigious Edward R. Murrow Journalism Award for her reporting on Big Island tsunami damage in 2011. She is a Certified Meteorologist and graduate of the University of Hawaii at Manoa with a BA in Speech Communication and French. Malika leads the Big Island Now weather team and enjoys conducting video interviews for Big Island Now's news and entertainment sections. The former Miss Hawaii is also a black belt in karate, avid waterwoman, jewelry designer, singer, TV host and mommy blogger.
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