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WGHW60 PHFO 060128
FFAHFO
FLOOD WATCH
NATIONAL WEATHER SERVICE HONOLULU HI
328 PM HST MON JAN 5 2026
...FLOOD WATCH NOW IN EFFECT THROUGH 6 AM HST TUESDAY FOR ALL
HAWAIIAN ISLANDS...
HIZ001-003-004-006-007-009>011-015>018-022-023-026-027-029>054-
061530-
/O.CON.PHFO.FA.A.0001.000000T0000Z-260106T1600Z/
/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-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-
328 PM HST MON JAN 5 2026
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE. THE BEST CHANCE TONIGHT IS ON WINDWARD BIG ISLAND,
WINDWARD MAUI, AND OVER KAUAI COUNTY.
* WHERE...ALL THE MAIN HAWAIIAN ISLANDS.
* WHEN...THROUGH LATE TONIGHT.
* 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. SIGNIFICANT FLOODING MAY OCCUR DUE TO THE OVERFLOW
OF STREAMS AND DRAINAGES. LANDSLIDES MAY ALSO OCCUR IN AREAS WITH
STEEP TERRAIN.
* ADDITIONAL DETAILS...
- UNSETTLED WEATHER WILL CONTINUE THROUGH TONIGHT AS AS UPPER
LEVEL LOW BEGINS TO WEAKEN A FEW HUNDRED MILES WEST OF THE
STATE.
EXPECT PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL AND
ISOLATED THUNDERSTORMS. THE GREATEST FLOOD RISK WILL REMAIN
OVER KAUAI COUNTY AND ALONG SOUTHEAST FACING MOUNTAIN SLOPES
OF THE BIG ISLAND AND MAUI COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
SP
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