NWS calls rain, storms over Windward Oahu 'unusual phenomenon' - WBRC FOX6 News - Birmingham, AL

NWS calls rain, storms over Windward Oahu 'unusual phenomenon'

HONOLULU (HawaiiNewsNow) -
Update 5:50 a.m.

The National Weather Service describes last night's severe weather event on the Windward Side to Hawaii News Now as 'an unusual phenomenon.'

A cell of rain showers sat right over the Waikane and Kahana Valley areas and quickly intensified into a thunderstorm, then dumped enough rain over the region that the Waikane Stream rose seven feet in about an hour.

Forecasters say it's fairly rare for a system like this one to remain in one place for so long.

Update 11:45 p.m.

Honolulu Police say Kamehameha Highway has been reopened in Waikane.

Update 11:30 p.m.

The National Weather Service has cancelled the flash flood warning that was posted for Windward Oahu. However, at last check, Kamehameha Highway was still closed in both directions in Waikane as the Waikane Stream washes across the roadway.

Update 10:45 p.m.

Heavy rains have diminished over Windward Oahu, but the National Weather Service reports that streams are still very high in Waikane, Waiahole and Kahana Valley. Kamehameha Highway remains closed at Waikane. The Flash Flood warning remains in effect.

Update 10 p.m.

Heavy showers have diminished in coverage in the since 9:30 p.m....though additional heavy rainfall is possible across Windward Oahu. Kamehameha highway remains closed in Waikane due to flooding...and streams in Kahana valley...Waikane...and Waiahole remain very high.

Update 9:30 p.m..

A nearly stationary thunderstorm over Windward Oahu continues to focus very heavy rainfall in the Kahana Valley and Waikane areas.

Recent radar estimates indicate rain rates in excess of 3 inches per hour in the heaviest downpours in Waikane Valley. The Waikane stream has risen over 7 feet in the past hour, and Department of Emergency Management has reported that Kamehameha Highway is closed in Waikane. This is a dangerous situation.

Locations in the warning include but are not limited to Punaluu. Kahana, Waikane, Waiahole, Laie and Hauula.

This warning may need to be extended beyond 11:30 p.m. if Flash Flooding persists.

Stay with HawaiiNewsNow.com for the latest updates you can also check out our Interactive radar.

To get the latest weather conditions on your mobile phone click HERE.

Copyright 2013 Hawaii News Now. All rights reserved.

  • NewsMore>>

  • FIRST ALERT Update: Flooding rains possible through Tuesday

    FIRST ALERT Update: Flooding rains possible through Tuesday

    Saturday, May 26 2018 10:17 AM EDT2018-05-26 14:17:18 GMT
    Source: Fred Hunter/WBRCSource: Fred Hunter/WBRC
    Source: Fred Hunter/WBRCSource: Fred Hunter/WBRC

    Rain and thunderstorms will again be most prevalent during the afternoon and early evening due to the heat and bountiful moisture in place over Alabama. Beyond Saturday, all eyes will turn toward the Gulf as Alberto is forecast to take a northwesterly turn, leading it near the Alabama Gulf Coast by early next week.

    More >>

    Rain and thunderstorms will again be most prevalent during the afternoon and early evening due to the heat and bountiful moisture in place over Alabama. Beyond Saturday, all eyes will turn toward the Gulf as Alberto is forecast to take a northwesterly turn, leading it near the Alabama Gulf Coast by early next week.

    More >>
  • FIRST ALERT: A rainy holiday weekend ahead

    FIRST ALERT: A rainy holiday weekend ahead

    Saturday, May 26 2018 6:20 AM EDT2018-05-26 10:20:01 GMT
    Source: Fred Hunter/WBRCSource: Fred Hunter/WBRC

    Patchy, dense fog will continue through 9 a.m. Saturday morning. A very moist air mass will continue across Central Alabama into next week, and there is a potential for localized areas of heavy rainfall each day.

    More >>

    Patchy, dense fog will continue through 9 a.m. Saturday morning. A very moist air mass will continue across Central Alabama into next week, and there is a potential for localized areas of heavy rainfall each day.

    More >>
  • Fairfield working to unclog storm drains after homes flooded

    Fairfield working to unclog storm drains after homes flooded

    Friday, May 25 2018 11:45 PM EDT2018-05-26 03:45:42 GMT
    (Source: WBRC Video)(Source: WBRC Video)
    (Source: WBRC Video)(Source: WBRC Video)

    This week, the city council passed a resolution that would immediately appropriate funds to hire a contractor that will help with clean up and maintenance of storm drains in the affected areas across the city.

    More >>

    This week, the city council passed a resolution that would immediately appropriate funds to hire a contractor that will help with clean up and maintenance of storm drains in the affected areas across the city.

    More >>
Powered by Frankly