Alert archive / Kansas / Mesoscale Discussions in 2026

Mesoscale Discussion 2313

September 19, 2026Cheyenne County, Colorado; Greeley County, Wallace County, Kansas

The Storm Prediction Center issued this mesoscale discussion at Sep 19, 2026, 6:29 PM MDT for Cheyenne County, Colorado; Greeley County, Wallace County, Kansas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Sep 19, 2026, 6:29 PM MDT (00:29 UTC)
Expired: Sep 19, 2026, 8:30 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 671

Counties Cheyenne County, CO, Greeley County, KS, Wallace County, KS

The radar

The Goodland radar (KGLD), 61 km from the middle of the area, began a volume at 00:32 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, 0.5 hours before the alert went out and 214 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: 862 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 2236 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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
Sep 20, 12:49 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Elbert, Kit Carson, Lincoln, Phillips, Sedgwick and 2 more	2 hr
Sep 20, 3:41 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Kiowa, Kit Carson, Prowers	5 hr
Sep 20, 5:12 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Kiowa	93 min
Sep 19, 6:05 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Barber, Bourbon, Brown and 53 more	85 min
Sep 19, 7:12 PM MDT	Severe Thunderstorm Watch	SPC	Atchison, Doniphan, Leavenworth, Wyandotte	3 hr
Sep 19, 9:43 PM MDT	Mesoscale Discussion	SPC	Atchison, Doniphan, Leavenworth, Wyandotte	62 min

Nearby

Mesoscale Discussions in Kansas, 2026 Mesoscale Discussions in Colorado, 2026 Every mesoscale discussion in 2026

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.