Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 27, NWS Omaha, NE

April 28, 2014Burt County, Thurston County, Nebraska; Monona County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at Apr 28, 2014, 12:30 PM CDT for Burt County, Thurston County, Nebraska; Monona County, Iowa. It was in force for 30 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: Apr 28, 2014, 12:30 PM CDT (17:30 UTC)
Expired: Apr 28, 2014, 1:00 PM CDT
In force: 30 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Monona County, IA, Burt County, NE, Thurston County, NE

The radar

The Omaha radar (KOAX), 78 km from the middle of the area, began a volume at 17:30 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

Omaha, NE (KOAX), launched 12:00Z, 5.5 hours before the alert went out and 78 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: 7 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 171 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.

NWS Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 27, 6:22 PM CDT, 18 hours 8 minutes earlier.

Area forecast discussion, Apr 27, 6:22 PM CDT, 18 hours 8 minutes before

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Hazardous weather outlook, Apr 27, 5:31 PM CDT, 18 hours 59 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:24 PM CDT	Special Weather Statement	OAX	Platte	21 min
Apr 27, 7:31 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Platte	29 min
Apr 27, 8:04 PM CDT	Special Weather Statement	OAX	Pierce	41 min
Apr 27, 8:10 PM CDT	Severe Thunderstorm Warning	OAX	Pierce	35 min
Apr 27, 8:44 PM CDT	Severe Thunderstorm Warning	OAX	Cedar, Knox, Pierce	46 min
Apr 27, 9:40 PM CDT	Special Weather Statement	OAX	Pierce	35 min
Apr 27, 9:43 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox, Pierce	32 min
Apr 27, 10:14 PM CDT	Severe Thunderstorm Warning	OAX	Knox	46 min
Apr 28, 11:52 AM CDT	Special Weather Statement	OAX	Thurston	23 min
Apr 28, 12:18 PM CDT	Special Weather Statement	OAX	Thurston	27 min
Apr 28, 12:20 PM CDT	Special Weather Statement	OAX	Cedar	25 min
Apr 28, 12:51 PM CDT	Special Weather Statement	OAX	Cedar	39 min
Apr 28, 1:05 PM CDT	Special Weather Statement	OAX	Thurston	40 min
Apr 28, 1:34 PM CDT	Special Weather Statement	OAX	Cedar	41 min
Apr 28, 1:46 PM CDT	Special Weather Statement	OAX	Thurston	44 min
Apr 28, 3:09 PM CDT	Special Weather Statement	OAX	Thurston	51 min
Apr 28, 4:23 PM CDT	Special Weather Statement	OAX	Thurston	52 min
Apr 28, 4:32 PM CDT	Special Weather Statement	OAX	Boone	43 min
Apr 28, 5:29 PM CDT	Special Weather Statement	OAX	Madison	46 min
Apr 28, 12:43 PM CDT	Special Weather Statement	OAX	Monona	47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Severe Thunderstorm Warnings in Iowa, 2014 Every severe thunderstorm warning in 2014

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.