Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 171, NWS Phoenix, AZ

August 22, 2022Gila County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 22, 2022, 4:05 PM MST for Gila County, Arizona. It was in force for 70 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: Aug 22, 2022, 4:05 PM MST (23:05 UTC)
Expired: Aug 22, 2022, 5:15 PM MST
In force: 70 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 23:05 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.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 11.1 hours before the alert went out and 181 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 854 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 938 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Aug 22, 3:02 PM MST, 1 hour 3 minutes earlier.

Area forecast discussion, Aug 22, 3:02 PM MST, 1 hour 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>

In the hours before

Local storm report, Aug 22, 1:41 PM MST, 2 hours 24 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 22, 1:57 PM MST, 2 hours 8 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, Aug 22, 2:10 PM MST, 1 hour 55 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, Aug 22, 2:12 PM MST, 1 hour 53 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, Aug 22, 2:54 PM MST, 1 hour 11 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, Aug 22, 3:33 PM MST, 32 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
Aug 21, 5:14 PM MST	Areal Flood Advisory	PSR	Gila, Maricopa	7 min
Aug 21, 5:21 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	4 hr
Aug 21, 5:29 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	46 min
Aug 21, 5:31 PM MST	Special Weather Statement	PSR		44 min
Aug 21, 5:34 PM MST	Severe Thunderstorm Warning	PSR	Gila	41 min
Aug 21, 5:38 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 21, 5:45 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	45 min
Aug 21, 5:57 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	4 hr
Aug 21, 6:07 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	53 min
Aug 21, 6:16 PM MST	Special Weather Statement	PSR		44 min
Aug 21, 6:25 PM MST	Areal Flood Advisory	PSR	Maricopa	5 hr
Aug 21, 6:27 PM MST	Special Weather Statement	PSR		48 min
Aug 21, 6:30 PM MST	Areal Flood Advisory	PSR	Maricopa	5 hr
Aug 21, 6:32 PM MST	Dust Storm Advisory	PSR	Maricopa	58 min
Aug 21, 6:38 PM MST	Severe Thunderstorm Warning	PSR	Gila	52 min
Aug 21, 6:46 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	59 min
Aug 21, 6:48 PM MST	Areal Flood Advisory	PSR	Maricopa	2 hr
Aug 21, 6:53 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	52 min
Aug 21, 7:02 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	43 min
Aug 21, 7:25 PM MST	Severe Thunderstorm Warning	PSR	La Paz	50 min
Aug 21, 7:32 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 21, 7:42 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 21, 7:44 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	13 min
Aug 21, 7:46 PM MST	Special Weather Statement	PSR	Pinal	29 min
Aug 21, 8:00 PM MST	Special Weather Statement	PSR	Maricopa	30 min
Aug 21, 8:15 PM MST	Special Weather Statement	PSR		45 min
Aug 21, 8:22 PM MST	Areal Flood Advisory	PSR	La Paz, Maricopa	3 hr
Aug 21, 8:34 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Maricopa	27 min
Aug 21, 8:51 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 21, 8:53 PM MST	Special Weather Statement	PSR		52 min
Aug 21, 9:09 PM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	3 hr
Aug 21, 10:07 PM MST	Special Weather Statement	PSR	La Paz	38 min
Aug 21, 10:33 PM MST	Severe Thunderstorm Warning	PSR	La Paz	57 min
Aug 21, 10:48 PM MST	Dust Storm Warning	PSR	La Paz, Yuma	57 min
Aug 21, 11:04 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 21, 11:24 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 21, 11:46 PM MST	Dust Storm Warning	PSR	La Paz, Yuma	44 min
Aug 21, 11:49 PM MST	Special Weather Statement	PSR	La Paz	41 min
Aug 21, 11:57 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	48 min
Aug 22, 12:30 AM MST	Dust Storm Warning	PSR	La Paz, Yuma	60 min
Aug 22, 12:34 AM MST	Severe Thunderstorm Warning Considerable damage threat	PSR	La Paz, Yuma	56 min
Aug 22, 12:38 AM MST	Special Weather Statement	PSR		52 min
Aug 22, 12:46 AM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 22, 1:24 AM MST	Areal Flood Advisory	PSR	La Paz, Yuma	3 hr
Aug 22, 1:27 AM MST	Severe Thunderstorm Warning	PSR	Yuma	32 min
Aug 22, 1:46 AM MST	Special Weather Statement	PSR	Yuma	44 min
Aug 22, 2:47 AM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 22, 2:10 PM MST	Special Weather Statement	PSR		65 min
Aug 22, 2:12 PM MST	Special Weather Statement	PSR	Gila	63 min
Aug 22, 2:54 PM MST	Special Weather Statement	PSR	Gila	51 min
Aug 22, 3:33 PM MST	Special Weather Statement	PSR		42 min
Aug 22, 4:45 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa, Pinal	38 min
Aug 22, 1:15 AM MST	Special Weather Statement	PSR	Riverside	45 min
Aug 22, 1:31 AM MST	Special Weather Statement	PSR	Imperial	44 min
Aug 22, 1:53 AM MST	Areal Flood Advisory	PSR	Imperial	3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2022 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.