The National Weather Service in Honolulu has issued a flood advisory for the Kona Coast on Hawaii Island until 8:15 PM Tuesday.
Radar indicated heavy rain near Captain Cook. Rain was falling at a rate of 1 to 2 inches per hour.
Locations in the advisory include but are not limited to Kailua-Kona, Kealakekua, Honalo, Captain Cook, Puuanahulu, Kalaoa, Honaunau, Kahaluu-Keauhou, Kainaliu, Waikoloa Village and Holualo.
Elsewhere scattered showers are moving into windward areas of all islands.
A high far northeast of the state will remain nearly stationary and weaken. Trade winds will be replaced with light and variable winds on Wednesday night as a cold front approaches the islands.
A front far northwest of the islands will move southeast, reaching Kauai Saturday night and pushing south of the Big Island on Sunday. A new high will build north of the area behind the front, returning trade winds to the islands.
For the Bruno Mars concerts, no heavy rain is expected. Temperatures may feel a bit chilly for Hawaii standards on Saturday and Sunday.