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Muggy, Unstable Weather Continues Today

August 27, 2015, 1:52 AM HST
* Updated August 27, 12:09 AM
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Alerts

A Flood Watch remains in effect until 6 p.m. Thursday for all islands. An unstable and very moist air mass on the back side of the tropical system is lingering across the state. This moisture interacting with the land is expected to produce periods  of heavy rain and slow-moving downpours that could lead to flash flooding. If that occurs a more urgent Flood Advisory (flooding is imminent) or Flood Warning (flooding is occurring) will be posted by the National Weather Service.

**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

ARTICLE CONTINUES BELOW AD

Locally heavy showers as well as a few thunderstorms can be expected through Thursday, especially during the afternoon and evening hours. Light trade winds along with a slightly drier and more stable airmass is expected to return beginning Friday. Clouds and passing showers will then favor windward and mauka areas. Tropical cyclone Ignacio may approach the area early next week. It is too early to discuss any potential impacts since it will all depend on the track and intensity of the system as it nears the state.

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Today

Today we expect mostly sunny skies in the morning becoming mostly cloudy in the afternoon. Isolated morning showers are expected for windward areas then showers are likely with a slight chance of thunderstorms in the afternoon. For leeward spots the forecast is similar however there is a chance of locally heavy rainfall. High temperatures from 83° to 88° are expected but will likely feel warmer than the thermometer indicates. Variable winds up to 15 mph are forecasted.

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UV index at 13 (“extreme” exposure level)

 

Tonight

Light and variable winds are expected this evening. Low temperatures from 74° to 79° but feeling much warmer. Mostly cloudy skies are expected with scattered showers.

 

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**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: UHSOEST

Image: UHSOEST

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

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