As anticipated, a tropical depression intensified into Tropical Storm Malia early Monday, crossing parts of the Papahanaumokuakea National Monument in the Northwestern Hawaiian Islands while a new potential tropical cyclone developed southeast of the state.

Forecasters do not expect Malia to directly affect the main Hawaiian Islands.

At 5 p.m. Monday, Malia was about 190 miles northwest of Maro Reef and about 145 miles northeast of Lisianski Island, moving northwest at 12 mph and sporting maximum sustained winds of 40 mph.

A tropical storm warning remains in effect for the Papahanaumokuakea National Monument from French Frigate Shoals to Maro Reef and Lisianski Island. A tropical storm warning means that tropical storm conditions are expected somewhere within the warning area.

Forecasters project the storm will gain forward speed through Tuesday night as it continues to move toward the north-northwest.

Meanwhile the Central Pacific Hurricane Center is monitoring another developing weather system, about 1,000 miles southeast of Hilo.

“Environmental conditions are conducive for further development over the next couple of days as the low moves slowly toward the northwest,” forecasters said, adding that the system has a 70 percent chance of becoming a tropical cyclone within the next two days.

Heavy showers persisted over Hawaii island Monday, prompting a flood advisory for Hawaii County.

Weather radar detected several pockets of heavy rain over the leeward slopes of the island, falling at a rate of more than 2 inches per hour in the area between Keahole Point and Puuanahulu.

Kailua-Kona and areas immediately upslope were also affected.

Also, the National Weather Service issued a high-surf advisory for the south shores of all islands effective through 6 a.m. Tuesday. Forecasters predicted surf of 5 to 8 feet along the affected areas.

An upper-level disturbance is expected to extend the wet weather pattern that has brought clouds and showers to windward coasts and slopes over the past few days. Forecasters said locally breezy tradewinds will continue for the rest of the week.