723 

WGHW60 PHFO 220045

FFAHFO



Flood Watch

National Weather Service Honolulu HI

245 PM HST Fri Aug 21 2026



.Tropical Storm Moke will bring areas of heavy rain to portions of

the Big Island late Saturday night through Monday afternoon.



HIZ023-026>028-051>054-230415-

/O.CON.PHFO.FA.A.0010.260823T1000Z-260825T0400Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Kona-Kohala-Big Island Interior-Big Island Summits-Big Island

South-Big Island Southeast-Big Island East-Big Island North-

245 PM HST Fri Aug 21 2026



...FLOOD WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH

MONDAY AFTERNOON...



* WHAT...Flash flooding caused by excessive rainfall is possible for

  windward and southeast Big Island.



* WHERE...The Big Island.



* WHEN...From late Saturday night through Monday afternoon.



* 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.



* ADDITIONAL DETAILS...

  - Tropical Storm Moke is forecast to bring periods of heavy rain to

    the Big Island from late Saturday night through Monday afternoon.

    Rainfall totals of 5 to 10 inches, locally up to 15 inches, are

    possible over the windward and southeast slopes of the Big

    Island. It will not take a significant amount of rain to cause

    flash flooding due to saturated grounds from recent heavy rain.





PRECAUTIONARY/PREPAREDNESS ACTIONS...



You should monitor later forecasts and be prepared to take action

should Flash Flood Warnings be issued.



&&



$$



JVC