Alert archive / Kansas / Mesoscale Discussions in 2019

Mesoscale Discussion 1697

August 11, 201918 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Aug 11, 2019, 1:46 AM CDT for 18 counties in Kansas. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Aug 11, 2019, 1:46 AM CDT (06:46 UTC)
Expired: Aug 11, 2019, 3:45 AM CDT
In force: 119 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Clay County, KS, Cloud County, KS, Dickinson County, KS, Geary County, KS, Jewell County, KS, Lincoln County, KS, Marshall County, KS, Mitchell County, KS, Morris County, KS, Osborne County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Washington County, KS

The radar

The Grand Island radar (KUEX), 108 km from the middle of the area, began a volume at 06:46 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

Dodge City, (KDDC), launched 00:00Z, 6.8 hours before the alert went out and 262 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: 1183 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 2127 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

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
Aug 10, 11:43 PM CDT	Mesoscale Discussion	SPC	Decatur, Gove, Graham, Jewell, Mitchell, Norton and 9 more	92 min
Aug 11, 3:20 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more	85 min
Aug 11, 3:46 PM CDT	Tornado Watch	SPC	Cheyenne, Decatur, Gove, Greeley, Logan, Rawlins and 5 more	7 hr
Aug 11, 6:05 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more	115 min

Nearby

Mesoscale Discussions in Kansas, 2019 Every mesoscale discussion in 2019

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.