Alert archive / North Dakota / Mesoscale Discussions in 2026

Mesoscale Discussion 965

June 2, 20264 states

The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2026, 7:13 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 2, 2026, 7:13 PM MDT (01:13 UTC)
Expired: Jun 2, 2026, 9:15 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 269...270

Counties Carter County, MT, Adams County, ND, Bowman County, ND, Hettinger County, ND, Slope County, ND, Butte County, SD, Harding County, SD, Perkins County, SD, Crook County, WY

The radar

The Rapid City radar (KUDX), 154 km from the middle of the area, began a volume at 01:16 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

Rapid City, SD (KUNR), launched 00:00Z, 1.2 hours before the alert went out and 157 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: 161 J/kg
Mixed-layer CIN: -261 J/kg
Mixed-layer LCL: 1841 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 132 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
Jun 3, 1:43 PM MDT	Mesoscale Discussion	SPC	Barnes, Cass, Dickey, Emmons, Griggs, Kidder and 7 more	3 hr
Jun 3, 3:02 PM MDT	Tornado Watch	SPC	Barnes, Cass, Dickey, Griggs, Ransom, Richland and 3 more	7 hr
Jun 3, 4:10 PM MDT	Mesoscale Discussion	SPC	Cavalier, Grand Forks, Nelson, Pembina, Walsh	2 hr
Jun 3, 5:16 PM MDT	Mesoscale Discussion	SPC	Richland, Sargent	89 min
Jun 2, 7:56 PM MDT	Mesoscale Discussion	SPC	Bennett, Jackson, Mellette, Oglala Lakota	2 hr
Jun 3, 4:07 PM MDT	Mesoscale Discussion	SPC	Bon Homme	113 min

Nearby

Mesoscale Discussions in North Dakota, 2026 Mesoscale Discussions in South Dakota, 2026 Mesoscale Discussions in Montana, 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.