Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 116, NWS Omaha, NE

June 9, 2018Richardson County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 9, 2018, 6:49 PM CDT for Richardson 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: Jun 9, 2018, 6:49 PM CDT (23:49 UTC)
Expired: Jun 9, 2018, 7:30 PM CDT
In force: 41 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Richardson County, NE

The radar

The Topeka radar (KTWX), 133 km from the middle of the area, began a volume at 23:49 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

Topeka, KS (KFOE), launched 12:00Z, 11.8 hours before the alert went out and 125 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: 997 J/kg
Mixed-layer CIN: -180 J/kg
Mixed-layer LCL: 1501 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 4 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 Jun 9, 3:55 PM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Jun 9, 3:55 PM CDT, 2 hours 54 minutes before

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Hazardous weather outlook, Jun 9, 5:12 PM CDT, 1 hour 37 minutes before

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In the hours before

Special weather statement, Jun 9, 6:35 PM CDT, 14 minutes before

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Special weather statement, Jun 9, 6:45 PM CDT, 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
Jun 8, 11:32 PM CDT	Special Weather Statement	OAX	Knox	28 min
Jun 9, 12:15 AM CDT	Special Weather Statement	OAX	Antelope	45 min
Jun 9, 12:55 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Boone, Madison, Platte	35 min
Jun 9, 1:01 AM CDT	Special Weather Statement	OAX	Cedar, Pierce, Wayne	44 min
Jun 9, 1:37 AM CDT	Special Weather Statement	OAX	Boone, Madison	38 min
Jun 9, 1:47 AM CDT	Severe Thunderstorm Warning	OAX	Boone, Madison, Platte	28 min
Jun 9, 2:04 AM CDT	Severe Thunderstorm Warning	OAX	Madison, Pierce, Stanton	41 min
Jun 9, 2:13 AM CDT	Severe Thunderstorm Warning	OAX	Colfax, Madison, Platte, Stanton	32 min
Jun 9, 2:38 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte, Seward	52 min
Jun 9, 2:45 AM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton	45 min
Jun 9, 2:53 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Jefferson, Lancaster, Saline, Saunders, Seward	37 min
Jun 9, 3:00 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Saunders	30 min
Jun 9, 3:25 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Cass, Dodge, Douglas, Gage, Jefferson and 7 more	50 min
Jun 9, 3:53 AM CDT	Special Weather Statement	OAX	Burt, Thurston	37 min
Jun 9, 4:05 AM CDT	Special Weather Statement	OAX	Johnson, Nemaha, Otoe, Pawnee	25 min
Jun 9, 6:35 PM CDT	Special Weather Statement	OAX	Richardson	40 min
Jun 9, 6:45 PM CDT	Special Weather Statement	OAX	Richardson	45 min
Jun 9, 4:15 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	30 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018 Every severe thunderstorm warning in 2018

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.