Update: 11:15 p.m.

The flash flood advisory for the Big Island has expired.

8:15 p.m.

A flash flood warning for portions of Hawaii island has expired but a flood advisory remains until 11:15 p.m.

Radar indicated heavy rain along the northeastern slopes of the island, according to the National Weather Service. Rain was falling at a rate of 1 to 2 inches per hour. Expect elevated water levels in rivers and streams within the advisory area.

Locations in the advisory include but are not limited to Hilo, Paauilo, Waipio Valley, Orchidlands Estates, Kukuihaele, Hawi, Pepeekeo, Keaau, Kamuela, Honokaa, Ookala and Hawaiian Paradise Park.

5:15 p.m.

The National Weather Service issued a flash flood warning this afternoon for the northern region of Hawaii island.

At 5:08 p.m., radar indicated heavy rain and thunderstorms upslope of Pololu and Waipio valleys. Rainfall rates up to 3 inches per hour have been observed and Kawainui Stream has reached 6 feet.

Police reported flooding along Kohala Mountain Road, Kawaihae Road and near Waimea.

A flash flood warning means that flooding is imminent or occurring in streams, roads, and low lying areas.

Locations in the warning include but are not limited to Pololu Valley, Kohala Ranch, Hawi, Halaula, Kamuela, Kapaau, Waimanu Valley, Puako and Waipio Valley.