136
WGHW60 PHFO 280104
FFAHFO
FLOOD WATCH
NATIONAL WEATHER SERVICE HONOLULU HI
304 PM HST TUE OCT 27 2026
.A TROUGH MOVING OVER THE STATE FROM WEST TO EAST WILL BRING ABUNDANT
TROPICAL MOISTURE THROUGH AT LEAST WEDNESDAY NIGHT. HEAVY RAIN AND
ISOLATED THUNDERSTORMS ARE EXPECTED TO PRODUCE FLASH FLOODING, AND
WHILE THE GREATEST FLOOD THREAT WILL BE FOCUSED OVER OAHU AND MAUI
COUNTY, ALL ISLANDS ARE AT RISK.
HIZ001-003-004-006-007-009>011-015>018-022-023-026>054-281515-
/O.CON.PHFO.FA.A.0015.000000T0000Z-261029T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NIIHAU-KAUAI SOUTHWEST-KAUAI MOUNTAINS-WAIANAE COAST-OAHU NORTH
SHORE-OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS-LANAI MAUKA-
KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST-HALEAKALA SUMMIT-
KONA-KOHALA-BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-KAUAI NORTH-
KAUAI EAST-KAUAI SOUTH-EAST HONOLULU-HONOLULU METRO-EWA PLAIN-
KOOLAU WINDWARD-KOOLAU LEEWARD-MOLOKAI WINDWARD-MOLOKAI SOUTHEAST-
MOLOKAI NORTH-MOLOKAI WEST-MOLOKAI LEEWARD SOUTH-LANAI WINDWARD-
LANAI LEEWARD-LANAI SOUTH-MAUI CENTRAL VALLEY NORTH-MAUI CENTRAL
VALLEY SOUTH-WINDWARD HALEAKALA-KIPAHULU-SOUTH MAUI/UPCOUNTRY-
SOUTH HALEAKALA-BIG ISLAND SOUTH-BIG ISLAND SOUTHEAST-BIG ISLAND
EAST-BIG ISLAND NORTH-
304 PM HST TUE OCT 27 2026
..FLOOD WATCH REMAINS IN EFFECT THROUGH LATE WEDNESDAY NIGHT
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...ALL MAIN HAWAIIAN ISLANDS.
* WHEN...THROUGH LATE WEDNESDAY NIGHT.
* IMPACTS...SIGNIFICANT FLOODING MAY OCCUR DUE TO THE OVERFLOW OF
STREAMS AND DRAINAGES. ROADS IN SEVERAL AREAS MAY BE CLOSED, ALONG
WITH PROPERTY DAMAGE IN URBAN OR LOW LYING SPOTS DUE TO RUNOFF.
LANDSLIDES MAY ALSO OCCUR IN AREAS WITH STEEP TERRAIN.
* ADDITIONAL DETAILS...
- HEAVY SHOWERS AND ISOLATED THUNDERSTORMS WITH INTENSE RAIN RATES
MAY DEVELOP AT ANY TIME THROUGH WEDNESDAY NIGHT AS A TROUGH MOVES
OVER THE STATE FROM THE WEST. WHILE THE GREATEST FLOOD THREAT
WILL BE FOCUSED OVER OAHU AND MAUI COUNTY, ALL ISLANDS ARE AT
RISK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
M BALLARD
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