Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 36, NWS Norman, OK

March 24, 2019Bryan County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 24, 2019, 6:55 PM CDT for Bryan County, Oklahoma. It was in force for 50 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: Mar 24, 2019, 6:55 PM CDT (23:55 UTC)
Expired: Mar 24, 2019, 7:45 PM CDT
In force: 50 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County Bryan County, OK

The radar

The Norman radar (KTLX), 179 km from the middle of the area, began a volume at 23:56 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 24, 5:08 PM CDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.9 hours before the alert went out and 175 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: 550 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 535 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.4

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 24, 6:32 PM CDT, 23 minutes earlier.

Area forecast discussion, Mar 24, 6:32 PM CDT, 23 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>

Hazardous weather outlook, Mar 24, 11:32 AM CDT, 7 hours 23 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, Mar 24, 6:00 PM CDT, 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, Mar 24, 6:07 PM CDT, 48 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, Mar 24, 6:15 PM CDT, 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, Mar 24, 6:41 PM CDT, 14 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, Mar 24, 6:50 PM CDT, 5 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 Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 23, 7:01 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Oklahoma	44 min
Mar 23, 7:20 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Stephens	40 min
Mar 23, 7:32 PM CDT	Tornado Warning	OUN	Carter, Jefferson, Stephens	26 min
Mar 23, 7:39 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	51 min
Mar 23, 7:40 PM CDT	Special Weather Statement	OUN	Grant	35 min
Mar 23, 7:55 PM CDT	Severe Thunderstorm Warning	OUN	Grant	50 min
Mar 23, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Murray, Stephens	49 min
Mar 23, 8:10 PM CDT	Areal Flood Advisory	OUN	Carter, Jefferson, Stephens	3 hr
Mar 23, 8:18 PM CDT	Special Weather Statement	OUN	Cleveland	27 min
Mar 23, 8:21 PM CDT	Special Weather Statement	OUN	Cleveland	24 min
Mar 23, 8:33 PM CDT	Special Weather Statement	OUN	Cleveland, Lincoln	27 min
Mar 23, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Grant	39 min
Mar 23, 8:38 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland	52 min
Mar 23, 8:39 PM CDT	Special Weather Statement	OUN	Love	51 min
Mar 23, 8:43 PM CDT	Special Weather Statement	OUN	Carter	32 min
Mar 23, 8:50 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Murray	17 min
Mar 23, 9:07 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	38 min
Mar 23, 9:23 PM CDT	Special Weather Statement	OUN	Love	22 min
Mar 23, 9:27 PM CDT	Special Weather Statement	OUN	Murray	33 min
Mar 23, 9:28 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	31 min
Mar 23, 9:40 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	19 min
Mar 23, 9:48 PM CDT	Special Weather Statement	OUN	Marshall	42 min
Mar 23, 9:53 PM CDT	Special Weather Statement	OUN	Pottawatomie	37 min
Mar 23, 11:48 PM CDT	Special Weather Statement	OUN	Okfuskee	27 min
Mar 24, 1:44 AM CDT	Dense Fog Advisory	OUN	Alfalfa, Blaine, Caddo, Canadian, Comanche, Cotton and 12 more	8 hr
Mar 24, 6:00 PM CDT	Special Weather Statement	OUN	Atoka	30 min
Mar 24, 6:07 PM CDT	Special Weather Statement	OUN	Bryan	38 min
Mar 24, 6:15 PM CDT	Special Weather Statement	OUN	Bryan	45 min
Mar 24, 6:41 PM CDT	Special Weather Statement	OUN	Bryan	49 min
Mar 24, 6:47 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	21 min
Mar 24, 6:50 PM CDT	Special Weather Statement	OUN	Bryan	40 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.