Alert archive / Nebraska / Mesoscale Discussions in 2026

Mesoscale Discussion 151

March 6, 20269 counties in Colorado; 10 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Mar 6, 2026, 3:36 PM MST for 9 counties in Colorado; 10 counties in Nebraska. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Mar 6, 2026, 3:36 PM MST (22:36 UTC)
Expired: Mar 6, 2026, 7:30 PM MST
In force: 4 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

Counties Adams County, CO, Arapahoe County, CO, Elbert County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Arthur County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, McPherson County, NE, Morrill County, NE

The radar

The Cheyenne radar (KCYS), 176 km from the middle of the area, began a volume at 22:35 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 12:00Z, 10.6 hours before the alert went out and 424 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: 160 J/kg
Mixed-layer CIN: -239 J/kg
Mixed-layer LCL: 1603 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 256 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Mar 6, 12:50 PM MST	Mesoscale Discussion	SPC	Cass, Douglas, Gage, Jefferson, Johnson, Lancaster and 5 more	2 hr
Mar 6, 2:16 PM MST	Tornado Watch	SPC	Cass, Gage, Jefferson, Johnson, Lancaster, Nemaha and 3 more	9 hr
Mar 6, 4:23 PM MST	Mesoscale Discussion	SPC	Nemaha, Pawnee, Richardson	2 hr

Nearby

Mesoscale Discussions in Nebraska, 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.