Flood watch issued for Hawaiian Islands as heavy rainfall approaches

The National Weather Service has issued a flood watch through Saturday morning for all the main Hawaiian Islands.

A kona low is expected to bring widespread heavy rainfall to the Hawaiian Islands from Thursday into the weekend. The threat for heaviest rainfall will begin Thursday for the Big Island and then spread to the remaining islands as well Thursday night through Saturday. Heavy rainfall rates for an extended amount of time are expected to result in flash flooding, particularly over already saturated areas.

Flash flooding caused by excessive rainfall is possible and significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain.

A flood watch means that conditions are favorable for flash
flooding. Flash flooding is life threatening.