Fox News Weather Center

Lester to threaten Hawaii with rough surf, gusty winds over holiday weekend

As Tropical Storm Madeline continues to track away from Hawaii, Lester will approach the islands with rain, rough surf and gusty winds into Labor Day weekend.

Madeline, once a Category 4 hurricane, weakened to a tropical storm as it passed just south of the Big Island late Wednesday afternoon, local time.

Heavy rain from Madeline caused flooding which forced road closures throughout the Big Island on Wednesday, according to the Hawaii County Police.

Despite Madeline's rain and wind moving away from the island chain, hazards will continue for swimmers and boaters along the beaches as Hurricane Lester approaches from the east.

"Increased swells, rough surf and dangerous rip currents will affect many east-facing shores through the remainder of the week," AccuWeather Meteorologist Kyle Brown said.

While Madeline took a turn to the southwest as it approached the islands early this week, Lester is expected to take a turn to the northwest on its approach during the holiday weekend.

The most likely scenario is that Lester will take a track just to the north of the Hawaiian Islands, Brown said.

Similar to Madeline, Lester is also forecast to weaken to a tropical storm by the time it makes its closest approach to the islands, according to AccuWeather Hurricane Expert Dan Kottlowski.

How closely the center of the storm tracks will determine the severity of the wind and rain along northern portions of the Big Island, Maui, Molokai, Oahu and Kauai.

"Enhanced rainfall is possible across the island chain Friday night into the weekend," Brown said.

Flooding problems could worsen in areas that were affected by heavy rainfall from Madeline.

Conditions are expected to improve gradually from east to west as Lester moves away from the islands heading into Monday. Typical trade wind showers will resume for the remainder of the week.

Beyond Lester, there are no imminent tropical threats to the Hawaiian Islands.