Alert archive / South Dakota / Mesoscale Discussions in 2026

Mesoscale Discussion 239

March 14, 2026Big Stone County, Minnesota; 28 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Mar 14, 2026, 8:35 PM CDT for Big Stone County, Minnesota; 28 counties in South Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Mar 14, 2026, 8:35 PM CDT (01:35 UTC)
Expired: Mar 15, 2026, 1:30 AM CDT
In force: 5 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

All 29 counties

Big Stone County, MN, Beadle County, SD, Brookings County, SD, Brown County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Haakon County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lyman County, SD, Marshall County, SD, Pennington County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Stanley County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 112 km from the middle of the area, began a volume at 01:36 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 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 14, 11:55 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 21 more	5 hr
Mar 15, 5:40 AM CDT	Mesoscale Discussion	SPC	Carver, Dakota, Dodge, Goodhue, Hennepin, Le Sueur and 9 more	5 hr
Mar 15, 9:49 AM CDT	Mesoscale Discussion	SPC	Big Stone, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 32 more	6 hr

Nearby

Mesoscale Discussions in South Dakota, 2026 Mesoscale Discussions in Minnesota, 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; radar from the NEXRAD Level II archive.