Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 36, NWS Omaha, NE

May 8, 2014Cedar County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at May 8, 2014, 2:40 AM CDT for Cedar County, Nebraska. It was in force for 35 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: May 8, 2014, 2:40 AM CDT (07:40 UTC)
Expired: May 8, 2014, 3:15 AM CDT
In force: 35 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Cedar County, NE

The radar

The Sioux Falls radar (KFSD), 118 km from the middle of the area, began a volume at 07:42 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, 7.7 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4332 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 68 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.

NWS Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 12:26 AM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, May 8, 12:26 AM CDT, 2 hours 14 minutes before

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Hazardous weather outlook, May 7, 9:00 PM CDT, 5 hours 40 minutes before

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In the hours before

Special weather statement, May 7, 10:34 PM CDT, 4 hours 6 minutes before

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Special weather statement, May 7, 10:36 PM CDT, 4 hours 4 minutes before

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Local storm report, May 7, 10:47 PM CDT, 3 hours 53 minutes before

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Special weather statement, May 8, 12:25 AM CDT, 2 hours 15 minutes before

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Special weather statement, May 8, 12:52 AM CDT, 1 hour 48 minutes before

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Special weather statement, May 8, 2:28 AM CDT, 12 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
May 7, 7:44 PM CDT	Special Weather Statement	OAX	Lancaster	46 min
May 7, 7:57 PM CDT	Special Weather Statement	OAX	Saline	48 min
May 7, 7:59 PM CDT	Special Weather Statement	OAX	Douglas, Sarpy	46 min
May 7, 8:08 PM CDT	Severe Thunderstorm Warning	OAX	Saline, Seward	37 min
May 7, 8:51 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Sarpy, Saunders	24 min
May 7, 8:56 PM CDT	Special Weather Statement	OAX	Pawnee	49 min
May 7, 9:10 PM CDT	Special Weather Statement	OAX	Lancaster	50 min
May 7, 9:18 PM CDT	Special Weather Statement	OAX	Douglas, Sarpy	42 min
May 7, 9:27 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Saunders, Seward	33 min
May 7, 9:58 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Saunders	32 min
May 7, 10:17 PM CDT	Special Weather Statement	OAX	Jefferson, Saline	43 min
May 7, 10:25 PM CDT	Special Weather Statement	OAX	Knox	50 min
May 7, 10:34 PM CDT	Special Weather Statement	OAX	Dodge	26 min
May 7, 10:36 PM CDT	Special Weather Statement	OAX	Butler	24 min
May 7, 10:46 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Washington	29 min
May 8, 12:12 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Dodge, Saunders, Washington	33 min
May 8, 2:28 AM CDT	Special Weather Statement	OAX	Cedar	47 min
May 8, 1:50 PM CDT	Special Weather Statement	OAX	Cedar	25 min
May 8, 2:10 PM CDT	Special Weather Statement	OAX	Sarpy	50 min
May 7, 8:36 PM CDT	Special Weather Statement	OAX	Harrison	39 min
May 7, 8:53 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	37 min
May 7, 9:37 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	38 min
May 8, 12:25 AM CDT	Special Weather Statement	OAX	Pottawattamie	35 min
May 8, 12:52 AM CDT	Special Weather Statement	OAX	Shelby	23 min
May 8, 3:02 PM CDT	Special Weather Statement	OAX	Pottawattamie	43 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.