Alert archive / Arizona / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 131, NWS Phoenix, AZ

September 15, 2026Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 15, 2026, 5:54 PM MST for Maricopa County, Arizona. It was in force for 36 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: Sep 15, 2026, 5:54 PM MST (00:54 UTC)
Expired: Sep 15, 2026, 6:30 PM MST
In force: 36 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 00:54 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 Sep 15, 4:20 PM MST, 1 hour 34 minutes earlier.

Area forecast discussion, Sep 15, 4:20 PM MST, 1 hour 34 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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In the hours before

Special weather statement, Sep 15, 3:46 PM MST, 2 hours 8 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>

Special weather statement, Sep 15, 3:52 PM MST, 2 hours 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>

Special weather statement, Sep 15, 4:14 PM MST, 1 hour 40 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>

Special weather statement, Sep 15, 4:45 PM MST, 1 hour 9 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>

Special weather statement, Sep 15, 5:08 PM MST, 46 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>

Special weather statement, Sep 15, 5:39 PM MST, 15 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 15, 5:08 PM MST	Special Weather Statement	PSR	Maricopa	37 min
Sep 15, 5:39 PM MST	Special Weather Statement	PSR	Maricopa	36 min
Sep 15, 6:13 PM MST	Special Weather Statement	PSR	Maricopa	32 min
Sep 15, 6:55 PM MST	Special Weather Statement	PSR	Maricopa	35 min
Sep 16, 9:24 AM MST	Special Weather Statement	PSR	Gila	36 min
Sep 16, 10:27 AM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	3 hr
Sep 16, 10:50 AM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	4 hr
Sep 16, 11:02 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	28 min
Sep 16, 11:32 AM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	4 hr
Sep 16, 11:46 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	4 hr
Sep 16, 11:51 AM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 16, 12:34 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	4 hr
Sep 16, 12:42 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	5 hr
Sep 16, 12:56 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Sep 16, 1:26 PM MST	Flash Flood Warning	PSR	Maricopa	2 hr
Sep 16, 1:29 PM MST	Special Weather Statement	PSR	Pinal	31 min
Sep 16, 1:44 PM MST	Flash Flood Warning	PSR	Maricopa	3 hr
Sep 16, 2:13 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 16, 2:41 PM MST	Special Weather Statement	PSR		34 min
Sep 16, 2:46 PM MST	Special Weather Statement	PSR	La Paz	44 min
Sep 16, 2:54 PM MST	Special Weather Statement	PSR		36 min
Sep 16, 3:14 PM MST	Special Weather Statement	PSR		46 min
Sep 16, 3:19 PM MST	Special Weather Statement	PSR	La Paz	26 min
Sep 16, 3:42 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	33 min
Sep 16, 3:48 PM MST	Special Weather Statement	PSR	Yuma	42 min
Sep 16, 3:56 PM MST	Severe Thunderstorm Warning	PSR	La Paz	34 min
Sep 16, 4:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Sep 16, 4:19 PM MST	Special Weather Statement	PSR	Yuma	26 min
Sep 16, 4:40 PM MST	Severe Thunderstorm Warning	PSR	Yuma	35 min
Sep 16, 4:42 PM MST	Areal Flood Warning	PSR	Maricopa	10 hr
Sep 16, 4:50 PM MST	Areal Flood Advisory	PSR	Maricopa, Yuma	3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2026 Every severe thunderstorm warning in 2026

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.