Threat of flash flooding returns early this afternoon for all of Kaua‘i, Ni‘ihau

Flash flooding because of excessive rainfall once again threatens Kaua‘i and Ni‘ihau beginning early this afternoon, causing National Weather Service forecast office in Honolulu to issue a new flood watch for both islands.

The watch goes into effect at noon today (Feb. 22) and runs through 6 a.m. Monday (Feb. 23).

Slow-moving, heavy showers and isolated thunderstorms are forecast to develop over island interiors this afternoon, posing a threat of possible flash flooding.

The threat shifts to windward and mauka areas of the islands tonight as deep moisture and unstable trade winds build into the area.

Flood-prone roads and other low-lying locations could be closed because of elevated runoff and overflowing streams. Urban areas also might receive more significant flooding and property damage because of rapid runoff.

The public should monitor later forecasts and be prepared if flash flood warnings are issued.