Alert archive / Arizona / Flash Flood Warnings in 2022

Flash Flood Warning 291, NWS Phoenix, AZ

September 21, 2022La Paz County, Yuma County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Sep 21, 2022, 6:01 PM MST for La Paz County, Yuma 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: Sep 21, 2022, 6:01 PM MST (01:01 UTC)
Expired: Sep 21, 2022, 8:48 PM MST
In force: 3 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties La Paz County, AZ, Yuma County, AZ

The radar

The Yuma radar (KYUX), 107 km from the middle of the area, began a volume at 01:04 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 Sep 21, 4:40 PM MST, 1 hour 21 minutes earlier.

Area forecast discussion, Sep 21, 4:40 PM MST, 1 hour 21 minutes before

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In the hours before

Special weather statement, Sep 21, 4:52 PM MST, 1 hour 9 minutes before

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<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
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</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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Special weather statement, Sep 21, 5:24 PM MST, 37 minutes before

<!doctype html>
<html lang="en">
<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
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</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>
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Special weather statement, Sep 21, 5:32 PM MST, 29 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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>

Special weather statement, Sep 21, 5:34 PM MST, 27 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>

Local storm report, Sep 21, 5:55 PM MST, 6 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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>

Local storm report, Sep 21, 5:58 PM MST, 3 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
Sep 21, 5:16 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	3 hr
Sep 21, 5:24 PM MST	Special Weather Statement	PSR		66 min
Sep 21, 5:32 PM MST	Special Weather Statement	PSR	Yuma	43 min
Sep 21, 5:34 PM MST	Special Weather Statement	PSR		56 min
Sep 21, 5:41 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	3 hr
Sep 21, 6:12 PM MST	Special Weather Statement	PSR	La Paz	63 min
Sep 21, 7:04 PM MST	Special Weather Statement	PSR	La Paz	56 min
Sep 21, 8:18 PM MST	Special Weather Statement	PSR	La Paz	57 min
Sep 21, 9:05 PM MST	Areal Flood Warning	PSR	Maricopa, Pinal	11 hr
Sep 22, 10:19 AM MST	Special Weather Statement	PSR	Gila	26 min
Sep 22, 12:26 PM MST	Special Weather Statement	PSR	La Paz	49 min
Sep 22, 12:28 PM MST	Special Weather Statement	PSR		47 min
Sep 22, 1:17 PM MST	Special Weather Statement	PSR	Gila	43 min
Sep 22, 1:22 PM MST	Special Weather Statement	PSR	La Paz	53 min
Sep 22, 1:27 PM MST	Special Weather Statement	PSR	Maricopa	48 min
Sep 22, 1:58 PM MST	Special Weather Statement	PSR	Gila	47 min
Sep 22, 2:10 PM MST	Special Weather Statement	PSR		50 min
Sep 22, 2:17 PM MST	Special Weather Statement	PSR	La Paz	43 min
Sep 22, 2:25 PM MST	Areal Flood Advisory	PSR	La Paz	2 hr
Sep 22, 3:02 PM MST	Areal Flood Advisory	PSR	Maricopa	23 min
Sep 22, 3:25 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 22, 3:58 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Sep 22, 4:57 PM MST	Areal Flood Advisory	PSR	La Paz	4 hr

Nearby

Flash Flood Warnings in Arizona, 2022 Every flash flood warning in 2022

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.