Scattered lightning flashed across the sky around 7:30 Saturday night in Palm Beach Gardens, followed by strong winds around 9 p.m.

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The worst of the wind is yet to come late, Sunday afternoon into the evening hours, when 69 mph gusts are possible from 4 to 8 p.m., according to the National Weather Service in Miami. Tropical storm force gusts are forecast through 2 p.m. Monday.

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Sustained winds of about 49 mph will blow through from about 2 to 8 p.m. Sunday, according to the National Weather Service in Miami. Tropical storm force winds at lower speeds are forecast through 2 a.m. Monday.

To be classified as a hurricane, a storm must have sustained wind speeds of at least 74 mph on the Saffir-Simpson Hurricane Wind Scale.

Rain will likely continue through Monday morning, according to the National Weather Service.