Alert archive / Minnesota / Mesoscale Discussions in 2026

Mesoscale Discussion 976

June 3, 20268 counties in Minnesota; 7 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2026, 8:37 PM CDT for 8 counties in Minnesota; 7 counties in South Dakota. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued: Jun 3, 2026, 8:37 PM CDT (01:37 UTC)
Expired: Jun 3, 2026, 10:00 PM CDT
In force: 83 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 271

Counties Big Stone County, MN, Grant County, MN, Lac qui Parle County, MN, Lincoln County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Yellow Medicine County, MN, Brookings County, SD, Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 152 km from the middle of the area, began a volume at 01:39 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

Aberdeen, SD (KABR), launched 00:00Z, 1.6 hours before the alert went out and 147 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: 966 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1215 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 305 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.7

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
Jun 4, 3:12 PM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Lac qui Parle, Lincoln, Lyon, Pipestone and 5 more	93 min
Jun 3, 8:09 PM CDT	Mesoscale Discussion	SPC	Aurora, Brule, Charles Mix, Davison, Douglas, Gregory and 4 more	96 min
Jun 4, 1:26 PM CDT	Mesoscale Discussion	SPC	Aurora, Beadle, Brule, Buffalo, Clark, Codington and 11 more	94 min
Jun 4, 2:32 PM CDT	Mesoscale Discussion	SPC	Butte, Custer, Fall River, Harding, Lawrence, Meade and 3 more	88 min
Jun 4, 3:04 PM CDT	Severe Thunderstorm Watch	SPC	Bennett, Butte, Custer, Fall River, Haakon, Harding and 7 more	7 hr
Jun 4, 5:25 PM CDT	Severe Thunderstorm Watch	SPC	Aurora, Beadle, Brookings, Brule, Buffalo, Charles Mix and 27 more	8 hr
Jun 4, 5:46 PM CDT	Mesoscale Discussion	SPC	Butte, Custer, Harding, Lawrence, Meade, Pennington and 1 more	89 min

Nearby

Mesoscale Discussions in Minnesota, 2026 Mesoscale Discussions in South Dakota, 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.