PRECAUTIONARY
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
LOCATIONS
WHAT...Flash flooding caused by excessive rainfall has already occurred and continues to be possible through tonight.
INFO1
WHERE...Oahu, Maui, Molokai, Lanai, and Kahoolawe.
INFO2
WHEN...Through 6 AM HST Saturday morning.
INFO3
IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff.
INFO4
ADDITIONAL DETAILS... - An upper level low and associated surface boundary will provide conditions favorable for heavy rain through tonight. Heavy rain has already been observed over portions of the watch area, and conditions will not change much overnight. Therefore, the watch is being extended in time.