Issued at: 3:30 am HST on September 3, 2015, expires at: 12:00 AM HST on September 04, 2015
...Flash Flood Watch in effect until midnight HST tonight...
The National Weather Service in Honolulu has issued a
Flash Flood Watch for all Hawaiian islands
until midnight HST tonight.
A very moist air mass...together with a trough of low pressure
in the middle atmosphere overhead...has been encouraging locally
heavy showers and thunderstorms to develop during the night.
Although most of the heaviest precipitation remained offshore...
rainfall locally saturated the soil from Oahu to The Big Island
overnight. Showers and thunderstorms are expected to cover only
a portion of the state at any one time...but local impacts may
be significant...and training showers may permit heavy rain to
continue at individual locations for extended periods of time.
Shower and thunderstorm development is expected to increase in
the afternoon and early evening.
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.
Monitor the latest forecasts and be prepared to take immediate
action if flash flood warnings are issued.
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