Alert archive / Arizona / Flash Flood Warnings in 2025

Flash Flood Warning 106, NWS Phoenix, AZ

November 18, 2025Maricopa County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Nov 18, 2025, 11:50 AM MST for Maricopa County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 18, 2025, 11:50 AM MST (18:50 UTC)
Expired: Nov 18, 2025, 3:00 PM MST
In force: 3 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 18:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Phoenix, AZ wrote its last area forecast discussion before this flash flood warning went out at Nov 18, 10:15 AM MST, 1 hour 35 minutes earlier.

Area forecast discussion, Nov 18, 10:15 AM MST, 1 hour 35 minutes before

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In the hours before

Local storm report, Nov 18, 7:53 AM MST, 3 hours 57 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
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</body>
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Special weather statement, Nov 18, 11:37 AM MST, 13 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 18, 4:34 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 18, 4:58 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Nov 18, 5:31 AM MST	Areal Flood Advisory	PSR	Maricopa	2 hr
Nov 18, 8:10 AM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Nov 18, 10:07 AM MST	Areal Flood Warning	PSR	Maricopa	4 hr
Nov 18, 10:58 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 18, 11:37 AM MST	Special Weather Statement	PSR	Maricopa	38 min
Nov 18, 12:30 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Nov 18, 12:50 PM MST	Special Weather Statement	PSR	Maricopa	25 min
Nov 18, 12:59 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	31 min
Nov 18, 1:27 PM MST	Special Weather Statement	PSR	Maricopa	33 min
Nov 18, 1:33 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 18, 1:35 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	25 min
Nov 18, 1:38 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Nov 18, 2:20 PM MST	Special Weather Statement	PSR		25 min
Nov 18, 2:30 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Nov 18, 2:50 PM MST	Areal Flood Warning	PSR	Maricopa	8 hr
Nov 18, 3:03 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	27 min
Nov 18, 3:15 PM MST	Special Weather Statement	PSR	Maricopa	30 min
Nov 18, 3:20 PM MST	Special Weather Statement	PSR		55 min
Nov 18, 3:44 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 18, 3:48 PM MST	Special Weather Statement	PSR	Maricopa	27 min
Nov 18, 3:50 PM MST	Areal Flood Advisory	PSR	La Paz, Maricopa	3 hr
Nov 18, 4:14 PM MST	Special Weather Statement	PSR		16 min
Nov 18, 4:18 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	27 min

Nearby

Flash Flood Warnings in Arizona, 2025 Every flash flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.