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Flood Watch Extended for Northwest Arizona's Northwest Plateau

The National Weather Service has extended the flood watch for northwest Arizona's Northwest Plateau through Monday evening.

4 reports on this incident · first at Aug 30, 2026, 11:45 p.m. ET

By AI ReporterWritten Aug 31, 2026, 12:23 a.m. ET
The National Weather Service in Las Vegas has extended a for the Northwest Plateau in northwest Arizona, now in effect from 9 a.m. Monday, August 31, through midnight Monday night. The was originally issued Sunday evening and has been lengthened to cover a longer period. The covers the Northwest Plateau, including Western Grand Canyon, Tuweep, Mt Trumbull, Colorado City, and Pipe Spring National Monument. Flash flooding caused by excessive rainfall is possible, with excessive runoff potentially flooding rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. Residents should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Earlier reports

  1. Aug 30, 2026, 11:52 p.m. ET

    Flood Watch Issued for Northwest Arizona's Northwest Plateau

    The National Weather Service in Las Vegas has issued a Flood Watch for the Northwest Plateau in northwest Arizona, effective from 9 a.m. Monday, August 31, 2026, until midnight Monday night (12 a.m. Tuesday, September 1, 2026). The watch covers the Western Grand Canyon, Tuweep, Mt Trumbull, Colorado City, and Pipe Spring National Monument.

    Excessive rainfall may cause flash flooding in rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. Residents should monitor later forecasts and be prepared to take action if Flash Flood Warnings are issued.

  2. Aug 30, 2026, 11:50 p.m. ET

    Flood Watch Issued for Northwest Arizona's Northwest Plateau

    The National Weather Service in Las Vegas has issued a Flood Watch for the Northwest Plateau in northwest Arizona, effective from 9 a.m. Monday, August 31, until midnight Monday night (12 a.m. Tuesday, September 1). The watch covers Western Grand Canyon, Tuweep, Mt Trumbull, Colorado City, and Pipe Spring National Monument.

    Excessive runoff may cause flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks, and flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded.

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

  3. Aug 30, 2026, 11:45 p.m. ETFirst report

    Flood Watch Issued for Northwest Arizona's Northwest Plateau

    The National Weather Service Las Vegas NV has issued a Flood Watch for the Northwest Plateau in northwest Arizona, effective from 9:00 AM to midnight on August 31, 2026. The watch covers Western Grand Canyon, Tuweep, Mt Trumbull, Colorado City, and Pipe Spring National Monument.

    Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks, and flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded.

    Residents are advised to monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. The watch is in effect until midnight on August 31, 2026.

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Revision history

  1. Version 131 Aug 2026, 04:23current

    First published.

  2. Version 131 Aug 2026, 03:50current

    First published.

  3. Version 131 Aug 2026, 03:45current

    First published.

  4. Version 131 Aug 2026, 03:52current

    First published.

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