Alert archive / Nebraska / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 119, NWS Omaha, NE

June 20, 2016Dodge County, Washington County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 20, 2016, 5:14 PM CDT for Dodge County, Washington County, Nebraska. It was in force for 46 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, 2016, 5:14 PM CDT (22:14 UTC)
Expired: Jun 20, 2016, 6:00 PM CDT
In force: 46 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dodge County, NE, Washington County, NE

The radar

The Omaha radar (KOAX), 27 km from the middle of the area, began a volume at 22:18 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, 4:10 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 27 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: 1650 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.5

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, 3:13 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Jun 20, 3:13 PM CDT, 2 hours 1 minute before

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Hazardous weather outlook, Jun 20, 3:28 PM CDT, 1 hour 46 minutes before

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In the hours before

Local storm report, Jun 20, 3:43 PM CDT, 1 hour 31 minutes before

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Local storm report, Jun 20, 3:49 PM CDT, 1 hour 25 minutes before

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Special weather statement, Jun 20, 4:01 PM CDT, 1 hour 13 minutes before

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Special weather statement, Jun 20, 4:03 PM CDT, 1 hour 11 minutes before

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Local storm report, Jun 20, 4:31 PM CDT, 43 minutes before

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Local storm report, Jun 20, 4:35 PM CDT, 39 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
Jun 20, 12:52 PM CDT	Special Weather Statement	OAX	Colfax	23 min
Jun 20, 1:52 PM CDT	Special Weather Statement	OAX	Saunders	23 min
Jun 20, 2:20 PM CDT	Special Weather Statement	OAX	Saunders	25 min
Jun 20, 2:27 PM CDT	Special Weather Statement	OAX	Sarpy	33 min
Jun 20, 2:42 PM CDT	Special Weather Statement	OAX	Pierce	33 min
Jun 20, 3:03 PM CDT	Severe Thunderstorm Warning	OAX	Pierce	27 min
Jun 20, 3:22 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Stanton	38 min
Jun 20, 3:27 PM CDT	Special Weather Statement	OAX	Cuming	33 min
Jun 20, 3:35 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton	25 min
Jun 20, 4:01 PM CDT	Special Weather Statement	OAX	Cuming, Stanton	29 min
Jun 20, 4:03 PM CDT	Special Weather Statement	OAX	Dodge	27 min
Jun 20, 4:05 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton	25 min
Jun 20, 4:07 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Dodge	23 min
Jun 20, 4:28 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Dodge	47 min
Jun 20, 5:50 PM CDT	Severe Thunderstorm Warning	OAX	Washington	25 min
Jun 20, 2:17 PM CDT	Special Weather Statement	OAX	Harrison	28 min
Jun 20, 3:00 PM CDT	Special Weather Statement	OAX	Harrison, Shelby	30 min
Jun 20, 3:28 PM CDT	Special Weather Statement	OAX	Cass	32 min
Jun 20, 6:13 PM CDT	Special Weather Statement	OAX	Pottawattamie	32 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2016 Every severe thunderstorm warning in 2016

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.