Alert archive / Arizona / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 142, NWS Tucson, AZ

September 13, 2023Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Sep 13, 2023, 1:08 PM MST for Cochise County, Arizona. It was in force for 52 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 13, 2023, 1:08 PM MST (20:08 UTC)
Expired: Sep 13, 2023, 2:00 PM MST
In force: 52 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 83 km from the middle of the area, began a volume at 20:08 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

Phoenix, AZ (KPSR), launched 12:00Z, 8.1 hours before the alert went out and 270 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2337 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 175 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 Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 13, 7:53 AM MST, 5 hours 15 minutes earlier.

Area forecast discussion, Sep 13, 7:53 AM MST, 5 hours 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>

In the hours before

Special weather statement, Sep 13, 12:13 PM MST, 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, Sep 13, 12:17 PM MST, 51 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 Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 12, 5:22 PM MST	Areal Flood Advisory	TWC	Pima	113 min
Sep 12, 7:07 PM MST	Special Weather Statement	TWC	Pima	38 min
Sep 12, 7:29 PM MST	Severe Thunderstorm Warning	TWC	Pima	21 min
Sep 12, 10:15 PM MST	Severe Thunderstorm Warning	TWC	Pinal	45 min
Sep 12, 10:43 PM MST	Special Weather Statement	TWC	Cochise	47 min
Sep 13, 1:32 AM MST	Special Weather Statement	TWC		43 min
Sep 13, 1:36 AM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	39 min
Sep 13, 1:38 AM MST	Severe Thunderstorm Warning	TWC	Graham	27 min
Sep 13, 12:13 PM MST	Special Weather Statement	TWC		47 min
Sep 13, 12:17 PM MST	Special Weather Statement	TWC	Cochise	43 min
Sep 13, 12:28 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Sep 13, 12:41 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	49 min
Sep 13, 1:14 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	46 min
Sep 13, 1:33 PM MST	Severe Thunderstorm Warning	TWC	Pima	27 min
Sep 13, 2:02 PM MST	Severe Thunderstorm Warning	TWC	Cochise	43 min
Sep 13, 2:15 PM MST	Severe Thunderstorm Warning	TWC	Cochise	30 min
Sep 13, 2:57 PM MST	Special Weather Statement	TWC		48 min
Sep 13, 3:03 PM MST	Areal Flood Advisory	TWC	Cochise	117 min
Sep 13, 4:06 PM MST	Special Weather Statement	TWC	Pinal	39 min
Sep 13, 4:58 PM MST	Special Weather Statement	TWC	Pinal	32 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2023 Every severe thunderstorm warning in 2023

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.