First Alert: Decreasing winds, increasing rain, maybe some thunder ahead

Moderate trade winds will hold for Thursday, but then become light and variable late Thursday through Saturday ahead of an approaching cold front. The overall wind flow draw up moisture from the south, which will result in muggier conditions and the chance for heavier showers Friday afternoon. We could also hear some rumbles as thunderstorms are possible ahead and along the front.

The front itself is forecast to move over the islands during the weekend before stalling and dissipating over Maui and the Big Island. Light to moderate north winds will fill in behind the front along with cooler and drier conditions starting Sunday on the Kauai end of the chain.

There’s still a high surf advisory posted for east shores as a swell from Hurricane Sergio holds. A south-southwest swell will be fading late Thursday and Friday. A small northwest swell is expected in Thursday, with a larger swell anticipated late Sunday and Monday.

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