WGHW70 PHFO 211840

FFSHFO



Flash Flood Statement

National Weather Service Honolulu HI

840 AM HST Sat Mar 21 2026



HIC003-212100-

/O.CON.PHFO.FF.W.0021.000000T0000Z-260321T2100Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Honolulu HI-

840 AM HST Sat Mar 21 2026



...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 AM HST THIS 

MORNING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY...



At 840 AM HST, emergency management continued to report road 

closures across Oahu due to recent flooding, and the Wahiawa 

Reservoir remains elevated. While the heaviest bands of showers have 

moved east of Oahu, additional showers with rain rates of 0.5 to 1 

inch per hour will be moving over the island from the south and west 

this morning.





HAZARD...Flash flooding caused by heavy rain.



SOURCE...Emergency management.



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...

the entire Island of Oahu.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Stay away from streams, rivers, drainage ditches, and culverts, even 

if they are currently dry.



Do not cross fast flowing or rising water in your vehicle, or on 

foot. Turn around, don't drown.



&&



LAT...LON 2125 15769 2125 15772 2127 15773 2124 15782

      2130 15790 2129 15811 2136 15815 2148 15824

      2153 15825 2158 15829 2160 15813 2169 15805

      2173 15798 2155 15783 2147 15783 2143 15779

      2147 15779 2147 15772 2141 15773 2131 15764



FLASH FLOOD...OBSERVED



$$



WROE