101 

WGHW70 PHFO 200939

FFSHFO



Flash Flood Statement

National Weather Service Honolulu HI

1139 PM HST Thu Mar 19 2026



HIC003-201200-

/O.CON.PHFO.FF.W.0017.000000T0000Z-260320T1200Z/

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

Honolulu HI-

1139 PM HST Thu Mar 19 2026



...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 2 AM HST FRIDAY FOR 

THE ISLAND OF OAHU IN HONOLULU COUNTY...



At 1139 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 potentially making 

roadways impassable. Flooding conditions will rapidly worsen as 

additional heavy rain continues to fall over the next hour. Oahu 

Emergency Management officials are reporting streams and drainages 

near Waialua are rapidly filling up with water.



HAZARD...Heavy rain producing life threatening flash flooding.



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.



&&



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

FLASH FLOOD DAMAGE THREAT...CONSIDERABLE



$$



RCB