Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 1219

July 2, 201718 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2017, 10:56 PM CDT for 18 counties in Kansas. It was in force for 34 min.

The area

The outline as issued.

The facts

Issued: Jul 2, 2017, 10:56 PM CDT (03:56 UTC)
Expired: Jul 2, 2017, 11:30 PM CDT
In force: 34 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Barton County, KS, Ellis County, KS, Finney County, KS, Gove County, KS, Graham County, KS, Hodgeman County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Osborne County, KS, Pawnee County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Scott County, KS, Sheridan County, KS, Thomas County, KS, Trego County, KS

The radar

The Dodge City radar (KDDC), 88 km from the middle of the area, began a volume at 03:58 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 391Jul 3, 12:05 AM CDT

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 3.9 hours before the alert went out and 88 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: 723 J/kg
Mixed-layer CIN: -193 J/kg
Mixed-layer LCL: 2226 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 2, 8:04 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Graham, Norton, Phillips, Rawlins and 4 more	56 min
Jul 3, 12:02 AM CDT	Severe Thunderstorm Watch	SPC	Barton, Cloud, Ellis, Ellsworth, Jewell, Lane and 14 more	4 hr
Jul 3, 3:34 AM CDT	Mesoscale Discussion	SPC	Barton, Edwards, Ellis, Ellsworth, Gove, Hodgeman and 15 more	116 min
Jul 3, 3:24 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Clark, Comanche, Meade	9 hr
Jul 3, 5:49 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Rawlins, Sherman, Thomas	56 min

Nearby

Mesoscale Discussions in Kansas, 2017 Every mesoscale discussion in 2017

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.