727
WGHW60 PHFO 271254
FFAHFO
FLOOD WATCH
NATIONAL WEATHER SERVICE HONOLULU HI
254 AM HST TUE OCT 27 2026
.A TROUGH MOVING OVER THE STATE WILL BRING ABUNDANT TROPICAL MOISTURE
TODAY 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>054-280300-
/O.CON.PHFO.FA.A.0015.261027T1600Z-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-
254 AM HST TUE OCT 27 2026
...FLOOD WATCH REMAINS IN EFFECT FROM 6 AM HST THIS MORNING THROUGH
LATE WEDNESDAY NIGHT...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...ALL MAIN HAWAIIAN ISLANDS.
* WHEN...FROM 6 AM HST THIS MORNING 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
ARE EXPECTED TO DEVELOP TODAY AND CONTINUE THROUGH WEDNESDAY
NIGHT AS A TROUGH MOVES 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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