Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 179, NWS Omaha, NE

June 20, 2002Burt County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 20, 2002, 5:49 PM CDT for Burt County, Nebraska. It was in force for 26 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: Jun 20, 2002, 5:49 PM CDT (22:49 UTC)
Expired: Jun 20, 2002, 6:15 PM CDT
In force: 26 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Burt County, NE

The radar

The Omaha radar (KOAX), 59 km from the middle of the area, began a volume at 22:50 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
Jun 20, 4:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.8 hours before the alert went out and 59 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: 203 J/kg
Mixed-layer CIN: -310 J/kg
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 1:30 PM CDT, 4 hours 19 minutes earlier.

Area forecast discussion, Jun 20, 1:30 PM CDT, 4 hours 19 minutes before

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In the hours before

Special weather statement, Jun 20, 12:00 PM CDT, 5 hours 49 minutes before

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Special weather statement, Jun 20, 4:20 PM CDT, 1 hour 29 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.
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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 Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 8:27 PM CDT	Severe Thunderstorm Warning	OAX	Knox	48 min
Jun 19, 8:50 PM CDT	Severe Thunderstorm Warning	OAX	Antelope	25 min
Jun 19, 9:08 PM CDT	Severe Thunderstorm Warning	OAX	Boone	52 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2002 Every severe thunderstorm warning in 2002

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.