WGHW50 PHFO 210549 FFWHFO HIC003-210900- /O.EXT.PHFO.FF.W.0017.000000T0000Z-260321T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Honolulu HI 749 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 1100 PM HST. * At 749 PM HST, emergency management reported numerous closed roads due to flooding from earlier today. Latest radar shows a decrease in shower intensity, but heavy showers will be possible tonight. The Wahiawa Reservoir remains elevated and will continue to be a concern due to additional heavy rain expected over the next few days. 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... Wahiawa, Schofield Barracks, Wheeler Field, Haleiwa, Waialua, Mililani, Hauula, Laie, Waianae, Punaluu, Kahuku, Nanakuli, Waikane, Kaaawa, Helemano Housing, Whitmore Village, Waimea Valley, Waimea Bay, Mokuleia and Pupukea. 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. Be especially cautious at night when it is harder to recognize the dangers of flooding. && This warning may need to be extended beyond 1100 PM 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...OBSERVED $$ KINO