Alert archive / Nebraska / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 384, NWS North Platte, NE

October 23, 2010Holt County, Rock County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Oct 23, 2010, 9:04 PM CDT for Holt County, Rock County, Nebraska. It was in force for 41 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: Oct 23, 2010, 9:04 PM CDT (02:04 UTC)
Expired: Oct 23, 2010, 9:45 PM CDT
In force: 41 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Holt County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 132 km from the middle of the area, began a volume at 02:05 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.1 hours before the alert went out and 190 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: 134 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

In the hours before

Special weather statement, Oct 23, 8:29 PM CDT, 35 minutes before

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Special weather statement, Oct 23, 8:44 PM CDT, 20 minutes before

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Special weather statement, Oct 23, 8:49 PM CDT, 15 minutes before

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      <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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      <p id="message2">
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The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 23, 8:59 PM CDT	Severe Thunderstorm Warning	LBF	Rock	46 min
Oct 23, 9:42 PM CDT	Severe Thunderstorm Warning	LBF	Loup	48 min
Oct 23, 9:44 PM CDT	Severe Thunderstorm Warning	LBF	Holt	46 min
Oct 23, 10:23 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	52 min
Oct 23, 10:29 PM CDT	Severe Thunderstorm Warning	LBF	Holt	46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2010 Every severe thunderstorm warning in 2010

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.