Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 76, NWS Norman, OK

April 4, 1986Atoka County, Coal County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 4, 1986, 9:32 AM CST for Atoka County, Coal County, Oklahoma. It was in force for 63 min.

The area

The counties it named.

The facts

Issued: Apr 4, 1986, 9:32 AM CST (15:32 UTC)
Expired: Apr 4, 1986, 10:35 AM CST
In force: 63 min
Issued by: NWS Norman, OK
Area: Whole counties

Counties Atoka County, OK, Coal County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Ok Cty/Will Rgrs, OK (KOKC), launched 12:00Z, 3.5 hours before the alert went out and 166 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: 1337 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Apr 4, 4:14 AM CST, 5 hours 18 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, Apr 4, 5:23 AM CST, 4 hours 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>

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 6:35 PM CST	Severe Thunderstorm Warning	OUN	Bryan	40 min
Apr 3, 7:08 PM CST	Severe Thunderstorm Warning	OUN	Atoka	37 min
Apr 3, 7:33 PM CST	Severe Thunderstorm Warning	OUN	Choctaw, Pushmataha	37 min
Apr 3, 7:45 PM CST	Flash Flood Warning	OUN	Bryan	3 hr
Apr 3, 8:08 PM CST	Severe Thunderstorm Warning	OUN	Choctaw, Pushmataha	42 min
Apr 3, 8:42 PM CST	Severe Thunderstorm Warning	OUN	Atoka	38 min
Apr 4, 12:30 AM CST	Severe Thunderstorm Warning	OUN	Garvin, McClain	50 min
Apr 4, 1:15 AM CST	Severe Thunderstorm Warning	OUN	Cleveland, McClain	55 min
Apr 4, 10:06 AM CST	Severe Thunderstorm Warning	OUN	Hughes	29 min
Apr 4, 10:30 AM CST	Severe Thunderstorm Warning	OUN	Atoka	60 min
Apr 4, 1:00 PM CST	Flash Flood Warning	OUN	Atoka	3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1986 Every severe thunderstorm warning in 1986

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.