Alert archive / Kansas / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 405

July 9, 201348 counties in Kansas; 31 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 9, 2013, 6:40 PM CDT for 48 counties in Kansas; 31 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 9, 2013, 6:40 PM CDT (23:40 UTC)
Expired: Jul 10, 2013, 1:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 79 counties

Anderson County, KS, Barton County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Ellis County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Graham County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Jewell County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ness County, KS, Norton County, KS, Osage County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pottawatomie County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Shawnee County, KS, Smith County, KS, Stafford County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gage County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Pawnee County, NE, Phelps County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Seward County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 48 km from the middle of the area, began a volume at 23:40 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: 30%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 60%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jul 9, 6:48 PM CDT	Severe Thunderstorm Warning	GLD	Graham	57 min
Jul 9, 6:57 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper	48 min
Jul 9, 7:06 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	39 min
Jul 9, 7:40 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	50 min
Jul 9, 7:53 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	52 min
Jul 9, 8:19 PM CDT	Severe Thunderstorm Warning	ICT	Russell	41 min
Jul 9, 8:21 PM CDT	Severe Thunderstorm Warning	GLD	Norton	54 min
Jul 9, 8:25 PM CDT	Severe Thunderstorm Warning	GID	Furnas	20 min
Jul 9, 8:28 PM CDT	Severe Thunderstorm Warning	ICT	Lincoln	32 min
Jul 9, 8:33 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	42 min
Jul 9, 8:40 PM CDT	Severe Thunderstorm Warning	GLD	Decatur, Norton	50 min
Jul 9, 8:46 PM CDT	Severe Thunderstorm Warning	GID	Mitchell	44 min
Jul 9, 8:50 PM CDT	Tornado Warning	GID	Sherman, Valley	25 min
Jul 9, 8:52 PM CDT	Severe Thunderstorm Warning	ICT	Lincoln	23 min
Jul 9, 9:13 PM CDT	Severe Thunderstorm Warning	ICT	Lincoln	47 min
Jul 9, 9:14 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	46 min
Jul 9, 10:06 PM CDT	Severe Thunderstorm Warning	TOP	Riley	39 min
Jul 9, 10:34 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Morris, Pottawatomie, Riley, Wabaunsee	26 min
Jul 10, 12:47 AM CDT	Severe Thunderstorm Warning	TOP	Brown, Nemaha	28 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, 11.7 hours before the alert went out and 245 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: 1970 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 1534 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 9, 3:34 PM CDT	Mesoscale Discussion	SPC	Ellis, Finney, Gove, Hodgeman, Kearny, Lane and 6 more	86 min
Jul 9, 6:08 PM CDT	Mesoscale Discussion	SPC	Barton, Clay, Cloud, Decatur, Dickinson, Ellis and 29 more	2 hr
Jul 8, 7:36 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Boyd, Brown, Cherry, Garden and 12 more	84 min
Jul 8, 10:03 PM CDT	Mesoscale Discussion	SPC	Antelope, Arthur, Blaine, Boone, Boyd, Brown and 31 more	57 min

Nearby

Severe Thunderstorm Watches in Kansas, 2013 Severe Thunderstorm Watches in Nebraska, 2013 Every severe thunderstorm watch in 2013

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.