HOUR-BY-HOUR: When and where are impacts expected from the approaching winter storm?

HONOLULU (HawaiiNewsNow) – A strong storm is expected to impact the entire state of Hawaii Wednesday night through Friday, bringing heavy rainfall, thunderstorms, and strong winds.

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Note this forecast is subject to change. Heavy rain and other impacts can happen at any time over the next several days.

Wednesday night: Scattered showers and a few isolated thunderstorms are expected late Wednesday night ahead of the front. The bulk of the activity will come on Thursday and Friday, however.

Thursday at midnight: Heavy rain will begin to increase after midnight. Scattered thunderstorms will start to develop ahead of the approaching front. These showers will be hit or miss. They will impact some, but not all.

Thursday morning: During the commute tomorrow, heavy rainfall is expected to develop over the islands. Torrential rainfall will be likely in mauka areas, impacting the morning drive through the Koolau.

Thursday at midday: Thunderstorms will continue to develop throughout the afternoon. Scattered thunderstorms are still impacting the state at this time.

Thursday evening.: Heavy rainfall is expected across most of the state into the evening as the low-pressure system continues to move north of the state. The associated cold front will start to push towards the southeast during the late afternoon and evening.

Friday morning: There will be more impacts over Maui County and Hawaii Island, and conditions will dry out through Friday evening and Saturday.

Friday afternoon: Heavy rain will be confined to the eastern half of the state. Dry and comfortable air will move in behind the cold front. Nice, sunny weather is expected on Saturday and Sunday.

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