Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 319, NWS Omaha, NE

August 22, 2014Butler County, Colfax County, Platte County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Aug 22, 2014, 11:52 PM CDT for Butler County, Colfax County, Platte County, Nebraska. It was in force for 23 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: Aug 22, 2014, 11:52 PM CDT (04:52 UTC)
Expired: Aug 23, 2014, 12:15 AM CDT
In force: 23 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Butler County, NE, Colfax County, NE, Platte County, NE

The radar

The Omaha radar (KOAX), 75 km from the middle of the area, began a volume at 04:54 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 00:00Z, 4.9 hours before the alert went out and 75 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: 1005 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Aug 22, 6:18 PM CDT, 5 hours 34 minutes earlier.

Area forecast discussion, Aug 22, 6:18 PM CDT, 5 hours 34 minutes before

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Hazardous weather outlook, Aug 22, 5:09 PM CDT, 6 hours 43 minutes before

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In the hours before

Special weather statement, Aug 22, 6:09 PM CDT, 5 hours 43 minutes before

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Special weather statement, Aug 22, 6:30 PM CDT, 5 hours 22 minutes before

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Local storm report, Aug 22, 6:47 PM CDT, 5 hours 5 minutes before

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Local storm report, Aug 22, 6:48 PM CDT, 5 hours 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 8:17 PM CDT	Special Weather Statement	OAX	Boone, Cuming, Madison, Stanton	58 min
Aug 22, 9:04 PM CDT	Special Weather Statement	OAX	Wayne	41 min
Aug 22, 9:46 PM CDT	Special Weather Statement	OAX	Madison	44 min
Aug 22, 10:03 PM CDT	Special Weather Statement	OAX	Madison	42 min
Aug 22, 11:09 PM CDT	Special Weather Statement	OAX	Boone, Butler, Lancaster, Platte, Seward	66 min
Aug 22, 11:47 PM CDT	Special Weather Statement	OAX	Antelope, Madison	43 min
Aug 23, 12:12 AM CDT	Special Weather Statement	OAX	Butler, Colfax, Platte, Saunders	33 min
Aug 23, 12:53 AM CDT	Special Weather Statement	OAX	Cedar, Colfax, Cuming, Dodge, Pierce, Saunders and 2 more	52 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 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.