Oahu Koolau Severe Watches & Warnings NOAA Weather Radio

Flash Flood Watch
Statement as of 3:54 PM HST on July 21, 2014

...Flash Flood Watch now in effect until 6 am HST Tuesday...

The Flash Flood Watch is now in effect for

* Oahu...Kauai...and Niihau.

* Until 6 am HST Tuesday.

* Lingering instability combined with increased moisture moving in from the east overnight will bring the potential for heavy showers and thunderstorms for Oahu and Kauai. The greatest threat for flooding rainfall will be late tonight across windward and mountain areas.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is very dangerous. Remember that it does not have to be raining heavily where you are for flash flooding to occur.

Avoid camping or hiking near streams and low-lying flood-prone areas.

Record Report
Statement as of 6:37 am HST on July 21, 2014

...Record daily maximum rainfall set at Lihue hi... ...Record daily maximum rainfall set at Kahului hi...

A record rainfall of 0.89 inches was set at Lihue hi yesterday. This breaks the old record of 0.8 set in 1958.

A record rainfall of 0.6 inches was set at Kahului hi yesterday. This breaks the old record of 0.2 set in 1992.

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