Alert archive / Arizona / Flash Flood Warnings in 2022

Flash Flood Warning 174, NWS Phoenix, AZ

August 17, 2022La Paz County, Yuma County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Aug 17, 2022, 8:21 PM MST for La Paz County, Yuma County, Arizona. It was in force for 4 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: Aug 17, 2022, 8:21 PM MST (03:21 UTC)
Expired: Aug 18, 2022, 12:30 AM MST
In force: 4 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 03:25 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 Aug 17, 5:00 PM MST, 3 hours 21 minutes earlier.

Area forecast discussion, Aug 17, 5:00 PM MST, 3 hours 21 minutes before

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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.
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    </section>
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In the hours before

Local storm report, Aug 17, 6:38 PM MST, 1 hour 43 minutes before

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<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, Aug 17, 6:50 PM MST, 1 hour 31 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, Aug 17, 6:52 PM MST, 1 hour 29 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, Aug 17, 7:19 PM MST, 1 hour 2 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, Aug 17, 7:20 PM MST, 1 hour 1 minute 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>

Special weather statement, Aug 17, 7:21 PM MST, 1 hour 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
Aug 17, 5:03 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	57 min
Aug 17, 5:05 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	40 min
Aug 17, 5:15 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	45 min
Aug 17, 5:16 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	29 min
Aug 17, 5:33 PM MST	Special Weather Statement	PSR		42 min
Aug 17, 5:42 PM MST	Special Weather Statement	PSR	Pinal	48 min
Aug 17, 5:52 PM MST	Severe Thunderstorm Warning	PSR	Yuma	23 min
Aug 17, 6:01 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	19 min
Aug 17, 6:02 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	21 min
Aug 17, 6:06 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	24 min
Aug 17, 6:12 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	48 min
Aug 17, 6:14 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 17, 6:15 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	45 min
Aug 17, 6:25 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 17, 6:29 PM MST	Dust Storm Warning	PSR	Maricopa, Pinal	61 min
Aug 17, 6:58 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	32 min
Aug 17, 7:04 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	41 min
Aug 17, 7:12 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	4 hr
Aug 17, 7:21 PM MST	Special Weather Statement	PSR	Yuma	39 min
Aug 17, 7:28 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	62 min
Aug 17, 7:44 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	46 min
Aug 17, 8:22 PM MST	Special Weather Statement	PSR	Yuma	38 min
Aug 17, 9:31 PM MST	Special Weather Statement	PSR	Pinal	44 min
Aug 17, 6:57 PM MST	Severe Thunderstorm Warning	PSR	Riverside	20 min

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.