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Heavy rain and potential flooding in the Plains

A slow-moving weather system with abundant moisture will bring heavy rainfall across portions of the Central and Southern Plains Saturday. Soils in the region are already saturated from recent rainfall, so flash flooding and river flooding are likely.
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Last Update: 332 AM HST SAT MAY 23 2015

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Honolulu, HI Local Forecast Office

28NM NNE Papaaloa HI

Marine Zone Forecast


Synopsis: HIGH PRESSURE REMAINS CENTERED FAR NORTHWEST OF THE MAIN HAWAIIAN ISLANDS. A WEAK FRONTAL BOUNDARY IS SLOWLY MOVING ACROSS MAUI COUNTY AND GRADUALLY DISSIPATING TODAY. A WEAK TROUGH LINGERING JUST EAST OF THE BIG ISLAND MONDAY THROUGH WEDNESDAY WILL DISRUPT THE TRADE WIND FLOW.

Today
South winds 15 kt veering north in the afternoon. Wind waves 5 ft. Northwest swell 4 ft. Haze in the morning. Scattered showers through the day.
Tonight
North winds 15 kt. Wind waves 5 ft. Northwest swell 4 ft. Scattered showers in the evening...then isolated showers after midnight.
Sunday
North winds 15 kt. Wind waves 5 ft. Mixed swell northwest 3 ft and south 3 ft. Scattered showers in the morning... Then isolated showers in the afternoon.
Sunday Night
North winds 10 kt. Wind waves 4 ft in the evening then 2 ft or less. Mixed swell northwest 3 ft and south 3 ft. Isolated showers through the night.
Monday
North winds 10 kt. Wind waves 2 ft or less. Swell south 3 ft. Isolated showers.
Monday Night
Winds variable less than 10 kt. Wind waves 2 ft or less. Northwest swell 3 ft after midnight. Swell south 3 ft. Isolated showers.
Tuesday
Winds variable less than 10 kt. Wind waves 2 ft or less. Mixed swell northwest 3 ft and south 3 ft. Haze. Isolated showers.
Wednesday
Winds variable less than 10 kt becoming east 10 kt. Wind waves 2 ft or less. Swell south 3 ft. Haze. Isolated showers.
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Last Update: 332 AM HST SAT MAY 23 2015
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