Flash Flood Warning

Locations Affected

Waimea, HI ∙ Ford Island, HI ∙ Lahilahi Point, HI ∙ Royal Kunia, HI ∙ Hālawa Heights, HI ∙ Mokuleia, HI ∙ Waipi‘o Acres, HI ∙ Mōli‘i Pond, HI ∙ Mōkapu Peninsula, HI ∙ Makakilo, HI

Full Alert Message

Flash Flood Statement National Weather Service Honolulu HI 435 PM HST Fri May 15 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM HST FOR OAHU... At 435 PM HST, radar indicated nearly stationary thunderstorms with heavy rainfall redeveloping over the Koolau mountains, from upslope of Hauula to upslope of Ahuimanu. These thunderstorms were bringing heavy rainfall to some areas that have already had significant rainfall today. Rain was falling at a rate of 2 to 3 inches per hour in the heaviest downpours. Flash flooding is ongoing or expected to begin shortly. 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 could experience flash flooding include but are not limited to... Hauula, Punaluu, Kaaawa, Waikane, Kahaluu, Ahuimanu, Heeia, and Kaneohe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. && LAT...LON 2128 15811 2136 15815 2148 15824 2153 15824 2158 15829 2159 15828 2159 15812 2169 15805 2173 15798 2155 15783 2147 15783 2143 15779 2146 15779 2147 15778 2146 15771 2142 15773 2136 15792 2130 15802 FLASH FLOOD...RADAR INDICATED

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