517
WGHW60 PHFO 231315
FFAHFO
FLOOD WATCH
NATIONAL WEATHER SERVICE HONOLULU HI
315 AM HST SUN AUG 23 2026
.MOISTURE ON THE NORTHERN PERIPHERY OF TROPICAL STORM MOKE WILL BRING
AREAS OF HEAVY RAIN TO PORTIONS OF THE BIG ISLAND THROUGH MONDAY
AFTERNOON.
HIZ023-026>028-051>054-240400-
/O.CON.PHFO.FA.A.0010.000000T0000Z-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-
315 AM HST SUN AUG 23 2026
..FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY AFTERNOON
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE FOR
WINDWARD AND SOUTHEAST BIG ISLAND.
* WHERE...THE BIG ISLAND.
* WHEN...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 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.
JT
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