242
WGHW50 PHFO 210151
FFWHFO
HIC003-210400-
/O.EXT.PHFO.FF.W.0019.000000T0000Z-260321T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
351 PM HST FRI MAR 20 2026
THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
THE ISLAND OF OAHU IN HONOLULU COUNTY
* UNTIL 600 PM HST.
* AT 351 PM HST, RADAR INDICATED AN AREA OF HEAVY RAIN OFFSHORE THAT
WILL MOVE THROUGH EAST OAHU WITHIN THE NEXT HOUR. RAIN RATES WITH
THAT AREA ARE IN THE 1 TO 2 INCH PER HOUR RANGE. THIS ADDITIONAL
RAINFALL COULD EXACERBATE EXISTING FLOODING AND RESULT IN
ADDITIONAL IMPACTS.
HAZARD...FLASH FLOODING CAUSED BY HEAVY RAIN.
SOURCE...RADAR.
IMPACT...FLOODING IN DRAINAGES, STREAMS, RIVERS, ROADS,
PROPERTIES, AND OTHER LOW-LYING AREAS. PUBLIC ROAD
CLOSURES POSSIBLE IN SOME AREAS. LANDSLIDES ARE
POSSIBLE IN STEEP TERRAIN.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HONOLULU, WAIPIO, MOANALUA, HALAWA, SALT LAKE, AIEA, KALIHI, PEARL
CITY, AHUIMANU, IROQUOIS POINT, MANOA, KAHALUU, KANEOHE, WAIAHOLE,
WAIPAHU, WAIKELE, PALOLO, MAUNAWILI, WAIKANE AND EWA BEACH.
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 600 PM HST IF FLOODING
PERSISTS.
LAT...LON 2147 15783 2143 15779 2144 15778 2147 15779
2147 15772 2146 15771 2141 15773 2134 15769
2131 15764 2126 15769 2125 15772 2127 15773
2125 15783 2129 15787 2130 15790 2129 15796
2131 15797 2129 15811 2140 15818 2150 15783
FLASH FLOOD...RADAR INDICATED
TS
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