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August 19, 2018 Weather Forecast

August 19, 2018, 7:00 AM HST
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Photo Credit: Asa Ellison

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

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Looking Ahead

Humid and unsettled conditions associated with a trough of low pressure moving through the state will keep the rainfall and thunderstorm chances in the forecast today across the western end of the state. Although the bulk of this activity will favor windward and mauka locations with moderate trades in place, some showers will manage to develop across leeward areas periodically. Breezy and drier trade wind conditions are expected to fill in tonight through the early portion of the week. Although it remains too early to determine how the islands will be impacted, Hurricane Lane is forecast to track through the region near the islands through the middle part of the week.

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West Side

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Today: Isolated showers. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 20%.

Tonight: Isolated showers before 1am. Partly cloudy, with a low around 74. East northeast wind around 13 mph. Chance of precipitation is 20%.

Monday: Sunny, with a high near 91. Heat index values as high as 98. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 21 mph.

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South Side

Today: Isolated showers after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 95. Light and variable wind. Chance of precipitation is 20%.

Tonight: Isolated showers before 7pm. Partly cloudy, with a low around 73. East northeast wind around 7 mph. Chance of precipitation is 20%.

Monday: Sunny, with a high near 91. Heat index values as high as 97. East northeast wind 7 to 10 mph.

North Shore

Today: Scattered showers. Partly sunny, with a high near 88. Breezy, with an east wind 13 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Isolated showers. Partly cloudy, with a low around 74. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Monday: Isolated showers before 11am. Mostly sunny, with a high near 90. Heat index values as high as 96. Breezy, with an east northeast wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Central Maui

Today: Scattered showers. Partly sunny, with a high near 91. Heat index values as high as 99. Breezy, with a north northeast wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers, mainly before 7pm. Partly cloudy, with a low around 72. East northeast wind around 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Isolated showers before noon. Mostly sunny, with a high near 90. Heat index values as high as 96. Breezy, with an east northeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Upcountry

Today: Sunny, with a high near 75. Calm wind becoming east northeast 5 to 8 mph in the afternoon.

Tonight: Mostly clear, with a low around 60. East northeast wind around 8 mph.

Monday: Sunny, with a high near 77. East northeast wind 8 to 11 mph.

East Maui

Today: Scattered showers. Partly sunny, with a high near 83. East wind 6 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers. Mostly cloudy, with a low around 71. East wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Scattered showers. Partly sunny, with a high near 85. East northeast wind 10 to 13 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Lanai City

Today: Scattered showers. Partly sunny, with a high near 78. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Northeast wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Sunny, with a high near 79. Breezy, with an east northeast wind 9 to 15 mph, with gusts as high as 21 mph.

Kaunakakai

Today: Isolated showers. Mostly sunny, with a high near 87. Light east wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

Tonight: Mostly clear, with a low around 74. East wind around 11 mph.

Monday: Sunny, with a high near 88. Breezy, with an east northeast wind 11 to 16 mph, with gusts as high as 22 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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