Excessive Heat Continues today for Portions of Central and Eastern U.S.; Change in Weather Pattern this Week

Dangerous heat and humidity continues today from portions of the Plains to the East Coast. A cold front will bring lower temperatures, and potential for strong to severe thunderstorms with damaging winds and heavy rain that could produce flash flooding to the Central and Eastern U.S. through early this week. High pressure shifts West this week with building heat and monsoonal moisture.
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Last Update: 918 AM HST Sun Jul 21 2019

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Honolulu, HI Local Forecast Office

17NM W Lanai City HI

Marine Zone Forecast


Synopsis: PHZ100-220830- 918 AM HST Sun Jul 21 2019 .Synopsis for Hawaiian coastal waters... High pressure will remain north of the region through the week. A surface trough will pass south of the state early this week and may bring some unsettled weather near the Big Island. $$

Today
East winds 15 knots. Wind waves 5 feet. Isolated showers through the day.
Tonight
East winds 15 knots. Wind waves 5 feet. Isolated showers after midnight.
Monday
East winds 15 knots. Wind waves 5 feet. Swell southeast 3 feet. Isolated showers.
Monday Night
East winds 20 knots. Wind waves 5 feet. Swell south 3 feet. Isolated showers through the night.
Tuesday
East winds 20 knots. Wind waves 6 feet. Southwest swell 3 feet and south 3 feet. Isolated showers through the day.
Tuesday Night
East winds 15 knots. Wind waves 6 feet. Southwest swell 3 feet and south 3 feet. Isolated showers.
Wednesday
East winds 15 knots. Wind waves 6 feet. Swell south 3 feet.
Thursday
East winds 15 knots. Wind waves 6 feet. Swell south 3 feet.
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Last Update: 918 AM HST Sun Jul 21 2019
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