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Cold front bringing strong winds, vog and rains

  • NOAA / NATIONAL WEATHER SERVICE
    The first in a series of weather systems is expected to move over Hawaii on Monday.
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An approaching cold front should bring gusty winds, vog and rain to the islands starting Monday and the rainy weather could continue through the work week as other weather systems move over the state.

The National Weather Service issued a wind advisory for parts of Kauai, Oahu, Molokai, Lanai, Maui and the summits of Haleakala and the Big Island through 6 a.m. Wednesday.

A high surf advisory has also been posted for the north shores of most islands as a series of swells arrives through the week.

Surf of 10 to 15 feet is expected along the north-facing shores of Oahu, Maui, Hawaii island, Kauai, Molokai and Niihau, according to weather officials. The advisory is in effect through 6 a.m. Wednesday.

Forecasters say strong southwest winds of 25 to 35 mph, with localized gusts of more than 55 mph are expected. The strongest winds will be in  areas like Central Oahu, as the southeast winds cross the Waianae Mountains and increase speed downslope.

"Winds this strong can bring down branches and weak trees, cause damage to weak roofs, cause localized power outages and make driving difficult, especially for high-profile vehicles," the weather service said in an advisory message.

The southerly winds will also bring vog and humidity to Oahu and other islands Monday, and rains starting Monday through Tuesday night. 

The forecast for Honolulu and southern shores of Oahu calls for partly sunny skies Monday with scattered showers. There’s a 40 percent chance of rain Monday, a 70 percent chance of rain Monday night and a 90 percent chance of rain Tuesday.

Another weather system will bring westerly winds and more rains Wednesday and a third system is also expected to bring rains on Friday.

The latest in a series of winter swells has also prompted a high surf advisory for north shores of Oahu, Niihau, Kauai County, Molokai, Maui and the Big Island, where waves with faces of 10 to 15 feet are expected through 6 a.m. Wednesday.

A larger northwest swell is expected Thursday, producing advisory-level surf for north- and west-facing shores Thursday and Friday. The swell will continue to build into Saturday, producing warning-level surf Saturday and Sunday.

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