Alert archive / Arizona / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 15, NWS Phoenix, AZ

July 20, 2013Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 20, 2013, 7:52 PM MST for Maricopa County, Arizona. It was in force for 53 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: Jul 20, 2013, 7:52 PM MST (02:52 UTC)
Expired: Jul 20, 2013, 8:45 PM MST
In force: 53 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 02:53 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 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 Jul 20, 7:50 PM MST, 2 minutes earlier.

Area forecast discussion, Jul 20, 7:50 PM MST, 2 minutes before

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Hazardous weather outlook, Jul 20, 4:40 AM MST, 15 hours 12 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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In the hours before

Special weather statement, Jul 20, 5:28 PM MST, 2 hours 24 minutes before

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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, Jul 20, 6:03 PM MST, 1 hour 49 minutes before

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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.
      </p>
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Local storm report, Jul 20, 6:10 PM MST, 1 hour 42 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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Local storm report, Jul 20, 7:09 PM MST, 43 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.
      </p>
    </section>
  </main>
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</body>
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Local storm report, Jul 20, 7:19 PM MST, 33 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>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Jul 20, 7:32 PM MST, 20 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>
    </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
Jul 20, 5:00 PM MST	Areal Flood Advisory	PSR	La Paz, Maricopa	3 hr
Jul 20, 5:00 PM MST	Special Weather Statement	PSR		45 min
Jul 20, 5:16 PM MST	Special Weather Statement	PSR	Gila	44 min
Jul 20, 5:28 PM MST	Special Weather Statement	PSR		47 min
Jul 20, 5:45 PM MST	Areal Flood Advisory	PSR	Gila, Maricopa	2 hr
Jul 20, 6:40 PM MST	Areal Flood Advisory	PSR	Gila, Maricopa, Pinal	110 min
Jul 20, 7:18 PM MST	Blowing Dust Advisory	PSR		42 min
Jul 20, 7:27 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	108 min
Jul 20, 7:32 PM MST	Special Weather Statement	PSR		43 min
Jul 20, 8:41 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	109 min
Jul 20, 9:07 PM MST	Special Weather Statement	PSR	Maricopa	38 min
Jul 20, 9:15 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	2 hr
Jul 21, 6:55 AM MST	Areal Flood Advisory	PSR	Maricopa	110 min
Jul 21, 9:39 AM MST	Special Weather Statement	PSR	Maricopa	51 min
Jul 21, 10:04 AM MST	Areal Flood Advisory	PSR	Maricopa	116 min
Jul 21, 10:30 AM MST	Special Weather Statement	PSR	Maricopa	45 min
Jul 21, 10:57 AM MST	Areal Flood Advisory	PSR	Maricopa	108 min
Jul 21, 11:27 AM MST	Areal Flood Advisory	PSR	Gila, Maricopa	2 hr
Jul 21, 11:30 AM MST	Special Weather Statement	PSR	Pinal	45 min
Jul 21, 12:12 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	2 hr
Jul 21, 12:52 PM MST	Flash Flood Warning	PSR	Gila, Maricopa, Pinal	3 hr
Jul 21, 1:39 PM MST	Flash Flood Warning	PSR	Maricopa, Pinal	3 hr
Jul 21, 3:12 PM MST	Areal Flood Advisory	PSR	Maricopa	108 min
Jul 21, 3:49 PM MST	Areal Flood Warning	PSR	Maricopa, Pinal	3 hr
Jul 21, 3:20 PM MST	Areal Flood Advisory	PSR	Imperial	115 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2013 Every severe thunderstorm warning in 2013

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.