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Winds Shifting Today, Humidity on the Rise

March 21, 2016, 1:09 AM HST
* Updated March 20, 10:14 PM
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Image: James Grenz

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

A High Surf Advisory is posted through noon Monday for elevated surf along north exposures of the Big Island.

A Marine Weather Statement has been issued by the National Weather Service for moderate surges and breaking waves at Hilo Harbor.

A Small Craft Advisory is posted for all island waters through 6 a.m Monday.

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

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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

Winds will weaken and veer to the southeast Monday with light south winds then prevailing through the rest of the week. Clouds and showers will favor windward areas through early Monday, with increased chances for leeward and interior clouds and showers from Monday afternoon through Friday. Some of these showers could become heavy, with a slight chance of thunderstorms Tuesday, as moisture increases and the atmosphere becomes unstable. Light winds will continue into next weekend, when a somewhat drier weather pattern may develop.

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Today

Today we expect mostly cloudy skies with showers likely in the morning for windward and mauka spots and partly cloudy skies and scattered showers in the afternoon. The Kona side is expected to be mostly clear in the morning with building cloud cover in the afternoon and the possibility of scattered showers. Humidity levels are expected to rise today with areas of haze. Northeast winds are forecast from 10 to 20 mph. High temperatures from 80° to 85°.

UV index at 11 (“extreme” exposure level)

 

Tonight

Variable winds are expected from 5 to 15 mph. Partly to mostly cloudy skies are forecast with scattered showers in the evening and clearing overnight. Low temperatures from 68° to 73°.

 

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 / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

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