Alert archive / Kansas / Mesoscale Discussions in 2018

Mesoscale Discussion 416

May 14, 2018Cheyenne County, Kit Carson County, Colorado; Logan County, Sherman County, Wallace County, Kansas

The Storm Prediction Center issued this mesoscale discussion at May 14, 2018, 4:04 PM MDT for Cheyenne County, Kit Carson County, Colorado; Logan County, Sherman County, Wallace County, Kansas. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: May 14, 2018, 4:04 PM MDT (22:04 UTC)
Expired: May 14, 2018, 6:00 PM MDT
In force: 116 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Cheyenne County, CO, Kit Carson County, CO, Logan County, KS, Sherman County, KS, Wallace County, KS

The radar

The Goodland radar (KGLD), 52 km from the middle of the area, began a volume at 22:07 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 12:00Z, 10.1 hours before the alert went out and 122 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: 65 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 14, 12:38 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 5 more	2 hr
May 13, 6:14 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ford and 7 more	91 min
May 13, 7:00 PM MDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Cloud, Dickinson, Doniphan and 22 more	3 hr
May 14, 11:54 AM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Coffey and 13 more	96 min
May 14, 12:20 PM MDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 28 more	11 hr

Nearby

Mesoscale Discussions in Kansas, 2018 Mesoscale Discussions in Colorado, 2018 Every mesoscale discussion in 2018

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.