Severe Storms; Fire Danger; and Strong Pacific Storms

More strong storms on tap for the Pacific Northwest this weekend. Heavy rains could produce flooding and mudslides. Saturday, a cold front moving into the central U.S. will bring potential for severe thunderstorms containing damaging winds, large hail, and isolated tornadoes; and localized flooding potential. Dry winds in southwestern California will keep fire weather threats high.
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Last Update: 1004 AM HST Sat Oct 21 2017

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Honolulu, HI Local Forecast Office

12NM ESE Waimanalo Beach HI

Marine Zone Forecast


Synopsis: PHZ100-220830- 1004 AM HST Sat Oct 21 2017 .Synopsis for Hawaiian coastal waters... A subtropical ridge north of the area will push south over the islands on Sunday, quickly weakening the trades and turning our winds more toward the southeast. Kona winds from southerly directions will develop on Monday as a cold front approaches the islands. The front will push down the chain early in the week, accompanied by heavy showers and a chance of thunderstorms. Strong, gusty, erratic winds could accompany these storms. Winds will switch to moderate to fresh northerlies after the passage of the front. $$

Rest Of Today
Northeast winds 20 knots. Wind waves 6 feet. North swell 4 feet. Isolated showers.
Tonight
East winds 15 knots. Wind waves 6 feet. North swell 4 feet. Isolated showers.
Sunday
East winds 10 knots in the morning becoming variable less than 10 knots. Wind waves 4 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Sunday Night
Winds variable less than 10 knots. Wind waves 4 feet. Northwest swell 7 feet. Haze. Scattered showers.
Monday
South winds 10 knots. Wind waves 5 feet. Northwest swell 6 feet. Swell south 3 feet. Haze through the day. Heavy showers likely in the morning. Isolated thunderstorms through the day. Occasional heavy showers in the afternoon.
Monday Night
Southwest winds 15 knots veering west after midnight. Wind waves 5 feet. Mixed swell northwest 5 feet and south 3 feet. Haze through the night. Occasional heavy showers in the evening. Isolated thunderstorms through the night. Heavy showers likely after midnight.
Tuesday
Northwest winds 10 knots becoming variable less than 10 knots, then becoming north 10 knots after midnight. Wind waves 4 to 5 feet. Northwest swell 8 to 10 feet and south 3 feet. Haze. Scattered showers and isolated thunderstorms.
Wednesday
North winds 10 knots. Wind waves 4 feet. North swell 9 to 11 feet. Scattered showers.
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ABOUT THIS FORECAST

Last Update: 1004 AM HST Sat Oct 21 2017
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