Alert archive / Nebraska / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 341

July 6, 20164 counties in Colorado; 10 counties in Kansas; 29 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 6, 2016, 2:49 PM MDT for 4 counties in Colorado; 10 counties in Kansas; 29 counties in Nebraska. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jul 6, 2016, 2:49 PM MDT (20:49 UTC)
Expired: Jul 6, 2016, 11:00 PM MDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 70 kt

All 43 counties

Kit Carson County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Graham County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Arthur County, NE, Boyd County, NE, Buffalo County, NE, Chase County, NE, Custer County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garden County, NE, Garfield County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Kearney County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 115 km from the middle of the area, began a volume at 20:53 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 10%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 50%
Ten or more severe hail reports: 50%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

38 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 6, 3:07 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden	38 min
Jul 6, 3:35 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	25 min
Jul 6, 3:59 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	31 min
Jul 6, 4:26 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	34 min
Jul 6, 5:33 PM MDT	Severe Thunderstorm Warning	LBF	McPherson	27 min
Jul 6, 6:01 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	29 min
Jul 6, 6:16 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, McPherson	29 min
Jul 6, 6:25 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	35 min
Jul 6, 6:30 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Hooker	30 min
Jul 6, 6:39 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, McPherson, Thomas	36 min
Jul 6, 6:43 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	34 min
Jul 6, 6:44 PM MDT	Tornado Warning Tornado observed	LBF	Arthur, McPherson	31 min
Jul 6, 6:46 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	29 min
Jul 6, 6:49 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	26 min
Jul 6, 7:00 PM MDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha, Rock	60 min
Jul 6, 7:01 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Hooker, McPherson	29 min
Jul 6, 7:04 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	26 min
Jul 6, 7:14 PM MDT	Tornado Warning Tornado observed	LBF	Keith, Lincoln, McPherson	31 min
Jul 6, 7:25 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	35 min
Jul 6, 7:29 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	46 min
Jul 6, 7:31 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Logan, McPherson, Thomas	19 min
Jul 6, 7:43 PM MDT	Severe Thunderstorm Warning	GLD	Dundy, Hitchcock	47 min
Jul 6, 7:43 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	32 min
Jul 6, 8:01 PM MDT	Tornado Warning	LBF	Lincoln	29 min
Jul 6, 8:11 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	34 min
Jul 6, 8:24 PM MDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	66 min
Jul 6, 8:36 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln	13 min
Jul 6, 8:39 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan	36 min
Jul 6, 8:45 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	30 min
Jul 6, 8:48 PM MDT	Severe Thunderstorm Warning	GID	Greeley, Sherman, Valley	42 min
Jul 6, 8:53 PM MDT	Severe Thunderstorm Warning	GLD	Red Willow	52 min
Jul 6, 9:01 PM MDT	Severe Thunderstorm Warning	GID	Furnas, Gosper	44 min
Jul 6, 9:13 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	32 min
Jul 6, 9:41 PM MDT	Severe Thunderstorm Warning	GID	Franklin, Furnas, Gosper, Harlan, Kearney, Phelps	49 min
Jul 6, 9:42 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan	20 min
Jul 6, 10:17 PM MDT	Severe Thunderstorm Warning	GID	Buffalo, Dawson	43 min
Jul 6, 10:30 PM MDT	Severe Thunderstorm Warning	GID	Franklin, Harlan, Kearney, Phelps	45 min
Jul 6, 10:35 PM MDT	Severe Thunderstorm Warning	GID	Buffalo, Dawson	40 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.8 hours before the alert went out and 40 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: 961 J/kg
Mixed-layer CIN: -393 J/kg
Mixed-layer LCL: 1663 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 6, 2:21 PM MDT	Mesoscale Discussion	SPC	Phillips, Sedgwick	54 min
Jul 5, 6:31 PM MDT	Mesoscale Discussion	SPC	Clay, Cloud, Decatur, Ellis, Ellsworth, Gove and 17 more	119 min
Jul 5, 8:11 PM MDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Comanche, Edwards, Ellis, Ellsworth and 23 more	7 hr
Jul 5, 10:20 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Clark, Cloud, Comanche and 36 more	115 min
Jul 6, 12:50 AM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Barber, Barton, Bourbon, Butler and 33 more	85 min
Jul 6, 1:19 AM MDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 22 more	7 hr
Jul 6, 2:47 AM MDT	Mesoscale Discussion	SPC	Barber, Comanche, Edwards, Harper, Hodgeman, Kingman and 7 more	58 min
Jul 5, 7:10 PM MDT	Severe Thunderstorm Watch	SPC	Antelope, Boone, Burt, Butler, Colfax, Cuming and 11 more	5 hr
Jul 5, 9:15 PM MDT	Mesoscale Discussion	SPC	Burt, Dodge, Douglas, Washington	90 min
Jul 6, 2:21 PM MDT	Tornado Watch	SPC	Blaine, Box Butte, Brown, Cherry, Dawes, Grant and 6 more	7 hr
Jul 6, 5:48 PM MDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boone, Boyd, Brown, Cedar and 24 more	57 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2016 Severe Thunderstorm Watches in Kansas, 2016 Severe Thunderstorm Watches in Colorado, 2016 Every severe thunderstorm watch 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.