Forecast maps show Tropical Storm Lala advancing toward Hawaii, with forecasters expecting it to reach hurricane strength as it approaches the Big Island.

Tropical Storm Lala was named Thursday morning, becoming the second named storm of the Central Pacific season and the ninth named storm to develop across the wider Pacific basin this year, Newsweek reported Thursday.

As of the most recent update from the National Hurricane Center (NHC), Lala was moving west-northwest around 12 miles per hour. It is expected to approach the Big Island on Saturday.

“Maximum sustained winds are near 60 mph (95 km/h) with higher gusts,” the agency reported. “Steady strengthening is forecast, and Lala is expected to become a hurricane as it approaches the Big Island.”

The NHC said a hurricane warning—meaning hurricane conditions are expected in the area—is in place for Hawaii County.

A tropical storm watch, signaling tropical storm conditions, is in place across Maui County, including the islands of Maui, Lanai, Molokai and Kahoolawe, it added.

Hurricane-force winds are forecast for the Big Island early Saturday, with tropical-storm-force winds possible in Maui County later in the day. The NHC warned that winds could be considerably stronger in mountainous and elevated areas.

The NHC said Lala could bring eight to 12 inches of rain to Maui and the Big Island, with isolated totals as high as 25 inches on the Big Island. Elsewhere in Hawaii, rainfall of four to six inches is expected, with maximum amounts up to eight inches. The heavy rain could trigger dangerous flooding and mudslides, particularly in steep terrain.

This is a developing story, more to follow.