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March 21, 2018 Weather Forecast

March 21, 2018, 6:00 AM HST
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Photo: James Grenz

High Surf Warning issued March 21 at 3:14AM HST until March 22 at 6:00PM HST by NWS

Our weather team will bring you any urgent weather alerts or updates as they occur. Check our breaking news section for the latest.

**Click directly on the images below to make them larger. Charts include: Hawaii Island high/low forecasted temperatures, projected winds, projected localized weather conditions and expected wave heights.**

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Looking Ahead

Cloudy conditions with breezy trades will continue into the second half of the work week. Although most of the shower coverage will focus over windward and mountain areas through Friday, a few passing leeward showers, mostly light, will remain possible. Light winds along with increasing rain chances are expected late Friday through Saturday. Improving conditions will be possible Sunday into early next week.

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Hilo

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Today: Showers likely, mainly before 7am. Mostly cloudy, with a high near 78. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Tonight: Showers likely, mainly after 1am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

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Kona

Today: A 30 percent chance of showers, mainly after noon. Widespread haze. Partly sunny, with a high near 79. Calm wind becoming west around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A 20 percent chance of showers before midnight. Widespread haze. Mostly cloudy, with a low around 66. Light and variable wind.

Thursday: A 30 percent chance of showers, mainly after noon. Widespread haze. Partly sunny, with a high near 79. Calm wind becoming west southwest 5 to 7 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

Waimea

Today: Scattered showers. Mostly cloudy, with a high near 71. Breezy, with a northeast wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 54. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A 40 percent chance of showers, mainly after 7am. Mostly cloudy, with a high near 71. Breezy, with a northeast wind 14 to 17 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

Kohala

Today: A 50 percent chance of showers. Mostly cloudy, with a high near 66. Breezy, with an east wind 13 to 16 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Breezy, with an east wind 15 to 22 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 66. Breezy, with an east wind 17 to 22 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.

South Point

Today: A 30 percent chance of showers. Widespread haze. Partly sunny, with a high near 79. Windy, with an east wind 21 to 25 mph, with gusts as high as 33 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A 20 percent chance of showers. Widespread haze. Mostly cloudy, with a low around 72. Windy, with an east northeast wind 23 to 25 mph, with gusts as high as 33 mph.

Thursday: A 20 percent chance of showers. Widespread haze. Partly sunny, with a high near 79. Windy, with an east wind 21 to 25 mph, with gusts as high as 32 mph.

Puna

Today: A 50 percent chance of showers. Mostly cloudy, with a high near 77. North northeast wind 7 to 9 mph. New precipitation amounts between a quarter and half of an inch possible.

Tonight: Showers likely, mainly before midnight. Mostly cloudy, with a low around 62. North wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday: Showers likely. Mostly cloudy, with a high near 77. Light and variable wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Waikoloa

Today: A 20 percent chance of showers. Partly sunny, with a high near 79. Breezy, with an east northeast wind 18 to 22 mph, with gusts as high as 30 mph.

Tonight: Mostly cloudy, with a low around 64. Breezy, with an east wind 10 to 20 mph, with gusts as high as 28 mph.

Thursday: A 20 percent chance of showers after noon. Partly sunny, with a high near 79. Breezy, with a northeast wind 12 to 17 mph becoming light in the afternoon. Winds could gust as high as 24 mph.

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Data Courtesy of NOAA.gov

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