271
WGHW60 PHFO 281256
FFAHFO
FLOOD WATCH
NATIONAL WEATHER SERVICE HONOLULU HI
256 AM HST WED OCT 28 2026
.A TROUGH MOVING OVER THE STATE IS BRINGING ABUNDANT TROPICAL
MOISTURE EXPECTED TO LAST THOUGH THIS EVENING. 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>054-290900-
/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-
256 AM HST WED OCT 28 2026
..FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...ALL MAIN HAWAIIAN ISLANDS.
* WHEN...THROUGH LATE TONIGHT.
* 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 TONIGHT AS A TROUGH CONTINUES
MOVING OVER THE STATE. 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.
WALSH
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