A flash flood warning has been extended for parts of Oahu until 12:15 a.m. due to heavy rainfall causing rising stream levels in windward areas. The National Weather Service reported rainfall rates of 1 to 2 inches per hour, sufficient to trigger flooding even with lighter amounts. Kamehameha Highway is closed at the Waikane Stream bridge, where three vehicles were stranded in knee-deep water. Other affected areas include Honolulu, Waiahole, Waikane, and Kaneohe, with continued runoff expected to impact low-lying regions and roads. Residents are advised to remain alert to potential flash flooding.
HONOLULU (HawaiiNewsNow) – A FLASH FLOOD WARNING has been extended for certain areas of Oahu as heavy rainfall has caused stream levels to rise in the windward regions.
The National Weather Service in Honolulu has indicated that the warning remains in effect until 12:15 a.m.
According to the weather service, radar indicated that intense showers and storms are persisting over the windward side, with peak rainfall rates ranging from 1 to 2 inches per hour. The ground is already saturated, meaning even lighter rain amounts of 1 to 2 inches per hour could lead to flooding.
Kamehameha Highway has been closed in both directions at the Waikane Stream bridge due to flooding, with reports of three vehicles stranded in knee-deep water along the highway.
Nearby streams are expected to continue running high, affecting low-lying areas and roadways.
Areas that may experience flash flooding include Honolulu, Waiahole, Waikane, Kahaluu, Ahuimanu, Kaaawa, Aiea, Punaluu, Pearl City, Halawa, Kaneohe, Moanalua, Mililani, Salt Lake, Kaneohe Marine Base, Hauula, Kalihi, Wahiawa, Maunawili, and Kailua.
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