Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 852

May 26, 20174 counties in Colorado; 11 counties in Kansas; 5 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 26, 2017, 9:03 PM MDT for 4 counties in Colorado; 11 counties in Kansas; 5 counties in Nebraska. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued: May 26, 2017, 9:03 PM MDT (03:03 UTC)
Expired: May 26, 2017, 11:00 PM MDT
In force: 117 min
Issued by: the Storm Prediction Center

Counties Cheyenne County, CO, Kit Carson County, CO, Phillips County, CO, Yuma County, CO, Cheyenne County, KS, Gove County, KS, Lane County, KS, Logan County, KS, Rawlins County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Dundy County, NE, Hayes County, NE, Hitchcock County, NE, Perkins County, NE

The radar

The Goodland radar (KGLD), 17 km from the middle of the area, began a volume at 03:02 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

Denver, CO (KDEN), launched 00:00Z, 3.1 hours before the alert went out and 156 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: 1044 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1740 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 180 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 9.5

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
May 26, 7:15 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Cheyenne, Crowley, Elbert, Kiowa and 8 more	60 min
May 27, 1:45 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 1 more	2 hr
May 27, 4:27 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Las Animas, Otero, Prowers	6 hr
May 26, 6:38 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Finney, Gove, Graham, Greeley and 12 more	7 hr
May 26, 10:45 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Ellis, Gove, Graham, Logan and 12 more	2 hr
May 26, 11:52 PM MDT	Severe Thunderstorm Watch	SPC	Barton, Ellis, Ellsworth, Jewell, Lincoln, Mitchell and 8 more	5 hr
May 27, 12:47 AM MDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Gove, Graham, Greeley, Lane and 10 more	88 min
May 27, 2:35 AM MDT	Mesoscale Discussion	SPC	Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 21 more	115 min
May 27, 8:59 AM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more	2 hr
May 27, 11:13 AM MDT	Tornado Watch	SPC	Bourbon, Cherokee, Crawford, Johnson, Linn, Miami	7 hr
May 27, 12:12 PM MDT	Mesoscale Discussion	SPC	Bourbon, Cherokee, Crawford, Linn, Miami, Neosho	93 min
May 27, 1:46 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Coffey, Greenwood, Neosho and 1 more	59 min

Nearby

Mesoscale Discussions in Kansas, 2017 Mesoscale Discussions in Nebraska, 2017 Mesoscale Discussions in Colorado, 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.