Flash Flood Warning

At 938 AM HST, Doppler radar indicated a band of moderate to heavy rain over the northern half of Oahu moving parallel to the Koolau Mountains. Rain was falling at a rate of 1 to 1.5 inches per hour. Several streams in this area, including Waiahole Stream in Kahaluu and Heeia Stream in Haiku, remain at elevated or rising water levels. A significant rise has also been observed on the Waikane Stream. Flash flooding is ongoing or expected to begin shortly and could result in additional road closures, especially along portions of Kamehameha Highway on the windward side.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Some locations that will experience flash flooding include... Waikane, Waiahole, Mililani, Punaluu, Kaaawa, Wahiawa, Kahaluu, Pearl City, Wheeler Field, Ahuimanu and Hauula.