Weather advisory map via National Weather Service/NOAA

The National Weather Service in Honolulu has issued a flood advisory for Hawaii Island until 8 p.m. Thursday (Aug 20).

At 4:59 p.m. weather radar showed moderate to heavy rain over the slopes of the North and South Kona Districts. The area of rainfall was drifting westward and could affect roads and communities from Kalaoa to Honaunau.

Other locations in the advisory include, but are not limited to, Kailua-Kona, Holualoa, Kainaliu, Honalo and Kealakekua.

Campers and hikers should avoid low lying flood prone areas. People should stay away from streams, drainage ditches and low lying areas prone to flooding. The rainfall and runoff will cause hazardous driving conditions due to ponding, reduced visibility and poor braking action. Excessive runoff may cause rockslides and mudslides in steep terrain.

Do not cross fast flowing or rising water in your vehicle or on foot. Turn around, don’t drown.

For links to the latest weather forecasts, reports, radar and satellite imagery visit our Weather Page at hawaii247.com/weather