Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 177, NWS Norman, OK

April 23, 1990Woodward County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 23, 1990, 9:59 PM CDT for Woodward County, Oklahoma. It was in force for 46 min.

The area

The counties it named.

The facts

Issued: Apr 23, 1990, 9:59 PM CDT (02:59 UTC)
Expired: Apr 23, 1990, 10:45 PM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Whole counties

County Woodward 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

Dodge City, (KDDC), launched 00:00Z, 3.0 hours before the alert went out and 160 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: 1405 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1732 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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 23, 7:59 PM CDT, 2 hours before

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Special weather statement, Apr 23, 8:48 PM CDT, 1 hour 11 minutes before

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Special weather statement, Apr 23, 9:24 PM CDT, 35 minutes before

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    <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.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:00 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	60 min
Apr 23, 8:58 PM CDT	Severe Thunderstorm Warning	OUN	Major	47 min
Apr 23, 9:13 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Woodward	47 min
Apr 23, 9:13 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	47 min
Apr 23, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	46 min
Apr 23, 10:20 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	40 min
Apr 23, 10:30 PM CDT	Severe Thunderstorm Warning	OUN	Major	45 min
Apr 23, 10:45 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	45 min
Apr 24, 12:34 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	41 min
Apr 24, 1:13 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	32 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1990 Every severe thunderstorm warning in 1990

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.