Alert archive / Oklahoma / Flash Flood Warnings in 1991

Flash Flood Warning 33, NWS Norman, OK

June 22, 1991McClain County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 22, 1991, 5:05 PM CDT for McClain County, Oklahoma. It was in force for 115 min.

The area

The counties it named.

The facts

Issued: Jun 22, 1991, 5:05 PM CDT (22:05 UTC)
Expired: Jun 22, 1991, 7:00 PM CDT
In force: 115 min
Issued by: NWS Norman, OK
Area: Whole counties

County McClain County, OK

The radar

The Norman radar (KTLX), 39 km from the middle of the area, began a volume at 22:11 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

Norman, OK (KOUN), launched 12:00Z, 10.1 hours before the alert went out and 24 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: 2043 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 969 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -85 m²/s²
0-3 km storm-relative helicity: -37 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 22, 1:00 PM CDT, 4 hours 5 minutes before

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Special weather statement, Jun 22, 1:50 PM CDT, 3 hours 15 minutes before

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Special weather statement, Jun 22, 2:26 PM CDT, 2 hours 39 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
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Special weather statement, Jun 22, 2:48 PM CDT, 2 hours 17 minutes before

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<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.
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Special weather statement, Jun 22, 4:28 PM CDT, 37 minutes before

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</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.
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Local storm report, Jun 22, 5:02 PM CDT, 3 minutes before

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<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>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 9:18 PM CDT	Severe Thunderstorm Warning	OUN	Woods	42 min
Jun 21, 9:34 PM CDT	Severe Thunderstorm Warning	OUN	Harper	41 min
Jun 21, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	61 min
Jun 21, 10:55 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	65 min
Jun 21, 11:16 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	44 min
Jun 21, 11:22 PM CDT	Severe Thunderstorm Warning	OUN	Major	33 min
Jun 22, 12:10 AM CDT	Severe Thunderstorm Warning	OUN	Woodward	50 min
Jun 22, 12:52 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	53 min
Jun 22, 1:35 AM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Ellis, Roger Mills	55 min
Jun 22, 2:07 AM CDT	Severe Thunderstorm Warning	OUN	Kay	28 min
Jun 22, 2:26 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	64 min
Jun 22, 3:20 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	55 min
Jun 22, 4:28 AM CDT	Severe Thunderstorm Warning	OUN	Grant	47 min
Jun 22, 2:26 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	64 min
Jun 22, 2:34 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	56 min
Jun 22, 3:13 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	47 min
Jun 22, 3:26 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	49 min
Jun 22, 3:55 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland	65 min
Jun 22, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	65 min
Jun 22, 4:18 PM CDT	Severe Thunderstorm Warning	OUN	McClain	57 min
Jun 22, 4:24 PM CDT	Flash Flood Warning	OUN	Cleveland, Pottawatomie	2 hr
Jun 22, 4:51 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	69 min
Jun 22, 4:58 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland	62 min
Jun 22, 5:10 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	65 min
Jun 22, 5:15 PM CDT	Severe Thunderstorm Warning	OUN	Pontotoc	60 min
Jun 22, 5:22 PM CDT	Severe Thunderstorm Warning	OUN	Grady, McClain	68 min
Jun 22, 5:43 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray	62 min
Jun 22, 5:59 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	61 min
Jun 22, 6:13 PM CDT	Severe Thunderstorm Warning	OUN	Pontotoc	62 min
Jun 22, 6:45 PM CDT	Severe Thunderstorm Warning	OUN	Coal	45 min
Jun 22, 6:57 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Johnston	63 min

Nearby

Flash Flood Warnings in Oklahoma, 1991 Every flash flood warning in 1991

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.