Weather advisory map via National Weather Service/NOAA

Flash Flood Watch

The National Weather Service in Honolulu has issued a flash flood watch until 6 p.m. this evening (Aug 27).

A very moist and unstable air mass remains over the state. Although little shower activity and cloud cover will be observed early this morning heavy showers and isolated thunderstorms will develop rapidly as the land heats up during the late morning and afternoon hours. Grounds are already saturated from recent rainfall and flash flooding could occur very quickly. Heavy rainfall could develop on all islands though the greatest threat will be across the smaller islands.

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.

Record Temperature in Hilo

A record high temperature of 88ºF was set in Hilo, Hawaii Wednesday (Aug 26). This ties the old record of 88ºF set in 2007.

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