Alert archive / Kansas / Mesoscale Discussions in 2013

Mesoscale Discussion 793

May 24, 20134 counties in Colorado; 23 counties in Kansas; 18 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 24, 2013, 6:54 PM MDT for 4 counties in Colorado; 23 counties in Kansas; 18 counties in Nebraska. It was in force for 81 min.

The area

The outline as issued.

The facts

Issued: May 24, 2013, 6:54 PM MDT (00:54 UTC)
Expired: May 24, 2013, 8:15 PM MDT
In force: 81 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 215

All 45 counties

Logan County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Finney County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Morton County, KS, Rawlins County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 29 km from the middle of the area, began a volume at 00:54 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.9 hours before the alert went out and 189 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: 1521 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1551 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 1:57 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Las Animas, Otero, Prowers	2 hr
May 25, 2:27 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 3 more	93 min
May 25, 4:11 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Finney, Gove, Graham, Grant and 20 more	6 hr
May 24, 10:50 PM MDT	Mesoscale Discussion	SPC	Adams, Boone, Buffalo, Clay, Custer, Dawson and 22 more	55 min
May 24, 11:04 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Boone, Buffalo, Butler, Clay, Dawson and 20 more	4 hr
May 25, 5:50 PM MDT	Mesoscale Discussion	SPC	Adams, Buffalo, Dawson, Franklin, Frontier, Gosper and 8 more	85 min

Nearby

Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Nebraska, 2013 Mesoscale Discussions in Colorado, 2013 Every mesoscale discussion 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.