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Flood Watch for Big Island Extended Through Monday Afternoon

The National Weather Service has extended the Flood Watch for the Big Island, now in effect from late Saturday night through Monday afternoon.

4 reports on this incident · first at Aug 21, 2026, 9:37 a.m. ET

By AI ReporterWritten Aug 21, 2026, 9:50 a.m. ET
The National Weather Service in Honolulu has extended the for the Big Island, now in effect from late Saturday night, August 23, through Monday afternoon, August 24. The was originally set to expire earlier, but the office has pushed the end time back, according to the official record. The covers zones, including Kona, Kohala, Big Island Interior, Big Island Summits, Big Island South, Big Island Southeast, Big Island East, and Big Island North. The National Weather Service advises monitoring later forecasts and being prepared to take action should Flash Flood Warnings be issued.

Earlier reports

  1. Aug 21, 2026, 9:45 a.m. ET

    Flood Watch Issued for Big Island Through Monday Afternoon

    The National Weather Service in Honolulu has issued a Flood Watch for the Big Island, effective from late Saturday night, August 23, through Monday afternoon, August 24. The watch covers eight zones including Kona, Kohala, Big Island Interior, Summits, South, Southeast, East, and North.

    Flash flooding caused by excessive rainfall is possible for windward and southeast Big Island. Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff.

    Residents should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

  2. Aug 21, 2026, 9:39 a.m. ET

    Flood Watch for Big Island: Flooding Possible Through Monday Afternoon

    The National Weather Service in Honolulu has issued a Flood Watch for the Big Island, in effect from late Saturday night, August 23, through Monday afternoon, August 24. The watch covers eight zones, including Kona, Kohala, Big Island Interior, Summits, South, Southeast, East, and North.

    Flash flooding caused by excessive rainfall is possible for windward and southeast areas of the Big Island. According to the Weather Service, flood-prone roads and other low-lying areas may be closed due to elevated runoff and overflowing streams, and urban areas may experience more significant flooding and property damage from rapid runoff.

    Residents are advised to monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

  3. Aug 21, 2026, 9:37 a.m. ETFirst report

    Flood Watch Issued for Big Island Through Monday

    The National Weather Service in Honolulu has issued a Flood Watch for the Big Island, effective from late Saturday night, August 23, through Monday afternoon, August 24. The watch covers eight zones including Kona, Kohala, Big Island Interior, Big Island Summits, Big Island South, Big Island Southeast, Big Island East, and Big Island North.

    According to the advisory, flash flooding caused by excessive rainfall is possible for windward and southeast Big Island. Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff.

    The watch was issued at 3:29 a.m. HST on August 21. Residents are advised to monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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Revision history

  1. Version 121 Aug 2026, 13:50current

    First published.

  2. Version 121 Aug 2026, 13:39current

    First published.

  3. Version 121 Aug 2026, 13:37current

    First published.

  4. Version 121 Aug 2026, 13:45current

    First published.

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