794
WGHW50 PHFO 200857
FFWHFO
HIC003-201200-
/O.NEW.PHFO.FF.W.0017.260320T0857Z-260320T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
1057 PM HST THU MAR 19 2026
THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A
* FLASH FLOOD WARNING FOR...
THE ISLAND OF OAHU IN HONOLULU COUNTY
* UNTIL 200 AM HST.
* AT 1057 PM HST, RADAR AND RAIN GAUGES INDICATED HEAVY RAIN FALLING
OVER THE NORTHERN HALF OF OAHU. RAIN WAS FALLING AT A RATE OF 1 TO
3 INCHES PER HOUR. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN
SHORTLY. OAHU EMERGENCY MANAGEMENT OFFICIALS ARE REPORTING STREAMS
AND DRAINAGES NEAR WAIALUA ARE RAPIDLY FILLING UP WITH WATER.
HAZARD...FLASH FLOODING CAUSED BY HEAVY RAIN.
SOURCE...RADAR AND AUTOMATED GAUGES.
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...
NORTHERN HALF OF OAHU, ALONG AND NORTH OF A LINE FROM WAIANAE
VALLEY TO SCHOFIELD BARRACKS TO KUALOA RANCH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY AWAY FROM STREAMS, RIVERS, DRAINAGE DITCHES, AND CULVERTS, EVEN
IF THEY ARE CURRENTLY DRY.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
THE HEAVY RAINS MAY CAUSE ROCK AND MUDSLIDES IN STEEP TERRAIN AREAS.
THIS WARNING MAY NEED TO BE EXTENDED BEYOND 200 AM HST IF FLOODING
PERSISTS.
LAT...LON 2148 15824 2153 15825 2157 15829 2158 15829
2159 15828 2160 15813 2169 15805 2173 15798
2155 15783 2150 15783 2140 15818
FLASH FLOOD...RADAR AND GAUGE INDICATED
RCB
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