Alert archive / Arizona / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 67, NWS Phoenix, AZ

November 21, 2019Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Nov 21, 2019, 2:37 PM MST for Maricopa County, Arizona. It was in force for 23 min. 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 21, 2019, 2:37 PM MST (21:37 UTC)
Expired: Nov 21, 2019, 3:00 PM MST
In force: 23 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 21:38 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 severe thunderstorm 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 severe thunderstorm warning went out at Nov 21, 11:41 AM MST, 2 hours 56 minutes earlier.

Area forecast discussion, Nov 21, 11:41 AM MST, 2 hours 56 minutes before

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In the hours before

Special weather statement, Nov 21, 1:32 PM MST, 1 hour 5 minutes before

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<body>
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    <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.
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      <p id="message2">
        Please try again in a few minutes.
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Local storm report, Nov 21, 1:40 PM MST, 57 minutes before

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<body>
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    <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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Local storm report, Nov 21, 2:07 PM MST, 30 minutes before

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<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>
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Special weather statement, Nov 21, 2:12 PM MST, 25 minutes before

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<head>
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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>
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Special weather statement, Nov 21, 2:19 PM MST, 18 minutes before

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<head>
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  <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>
</html>

Special weather statement, Nov 21, 2:23 PM MST, 14 minutes before

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<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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 20, 5:01 PM MST	Special Weather Statement	PSR	Maricopa	44 min
Nov 20, 5:16 PM MST	Special Weather Statement	PSR	Maricopa	44 min
Nov 20, 5:17 PM MST	Special Weather Statement	PSR		58 min
Nov 20, 5:54 PM MST	Special Weather Statement	PSR		51 min
Nov 20, 6:15 PM MST	Special Weather Statement	PSR	Pinal	45 min
Nov 20, 6:49 PM MST	Flash Flood Warning	PSR	Gila, Maricopa, Pinal	4 hr
Nov 20, 7:04 PM MST	Special Weather Statement	PSR	Gila	41 min
Nov 21, 10:35 AM MST	Special Weather Statement	PSR	Maricopa	25 min
Nov 21, 10:53 AM MST	Flash Flood Warning	PSR	Maricopa, Pinal	3 hr
Nov 21, 11:05 AM MST	Special Weather Statement	PSR		40 min
Nov 21, 11:45 AM MST	Special Weather Statement	PSR		45 min
Nov 21, 12:05 PM MST	Special Weather Statement	PSR	La Paz	40 min
Nov 21, 12:19 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	3 hr
Nov 21, 12:25 PM MST	Special Weather Statement	PSR		50 min
Nov 21, 1:24 PM MST	Special Weather Statement	PSR		36 min
Nov 21, 1:32 PM MST	Special Weather Statement	PSR		43 min
Nov 21, 1:35 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 21, 2:12 PM MST	Special Weather Statement	PSR	Maricopa	48 min
Nov 21, 2:19 PM MST	Special Weather Statement	PSR		41 min
Nov 21, 2:23 PM MST	Special Weather Statement	PSR	Maricopa	52 min
Nov 21, 3:01 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	44 min
Nov 21, 3:03 PM MST	Special Weather Statement	PSR		42 min
Nov 21, 3:20 PM MST	Special Weather Statement	PSR	Maricopa	40 min
Nov 21, 3:42 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Nov 21, 4:06 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 21, 4:32 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Nov 21, 4:32 PM MST	Special Weather Statement	PSR		43 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2019 Every severe thunderstorm warning in 2019

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.