810
WGHW50 PHFO 240128
FFWHFO
HIC001-240445-
/O.EXT.PHFO.FF.W.0028.000000T0000Z-260324T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
328 PM HST MON MAR 23 2026
THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
THE ISLAND OF HAWAII IN HAWAII COUNTY
* UNTIL 645 PM HST.
* AT 328 PM HST, RADAR INDICATED AREAS OF HEAVY RAIN CONTINUING OVER
PORTIONS OF EAST AND SOUTHEAST BIG ISLAND. THE HEAVIEST RAIN IS
CONCENTRATED OVER THE KAU DISTRICT BETWEEN KAWA FLATS AND VOLCANO,
INCLUDING PORTIONS OF MAMALAHOA HIGHWAY. RAIN WAS FALLING AT A
RATE OF 2 TO 4 INCHES PER HOUR. THE WATER LEVEL AT THE PAAUAU
GULCH GAGE NEAR PAHALA CONTINUES TO RUN HIGH. EMERGENCY MANAGEMENT
REPORTS WATER OVER MAMALAHOA HIGHWAY AT THAT LOCATION.
HAZARD...HEAVY RAIN PRODUCING LIFE THREATENING FLASH FLOODING.
SOURCE...EMERGENCY MANAGEMENT.
IMPACT...SIGNIFICANT AND LIFE THREATENING FLOODING IN
DRAINAGES, STREAMS, RIVERS, ROADS, PROPERTIES, AND
OTHER LOW LYING AREAS. MULTIPLE PUBLIC ROAD CLOSURES
EXPECTED, AS WELL AS LANDSLIDES IN STEEP TERRAIN.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HILO, HAWAIIAN PARADISE PARK, HONOKAA, VOLCANO, GLENWOOD, MOUNTAIN
VIEW, HAWAII VOLCANOES NATIONAL PARK, HAWAIIAN ACRES, KEAAU, WOOD
VALLEY, POHAKULOA CAMP, PAPAIKOU, PEPEEKEO, PAHALA, HONOMU, PAHOA
AND HAKALAU.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY AWAY FROM STREAMS, RIVERS, DRAINAGE DITCHES, AND CULVERTS, EVEN
IF THEY ARE CURRENTLY DRY.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF DRAINAGE
DITCHES AND STREAMS, STREETS, HIGHWAYS, PROPERTIES, AND OTHER LOW
LYING SPOTS.
THIS WARNING MAY NEED TO BE EXTENDED BEYOND 645 PM HST IF FLOODING
PERSISTS.
LAT...LON 1979 15510 1971 15507 1975 15500 1965 15497
1952 15480 1945 15483 1934 15498 1925 15516
1925 15529 1913 15550 1908 15554 1896 15559
1890 15568 1893 15571 1895 15573 1969 15550
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
TS
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