Alert archive / South Dakota / Mesoscale Discussions in 2020

Mesoscale Discussion 1748

October 21, 2020Traverse County, Minnesota; 7 counties in North Dakota; 12 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Oct 21, 2020, 9:56 PM CDT for Traverse County, Minnesota; 7 counties in North Dakota; 12 counties in South Dakota. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Oct 21, 2020, 9:56 PM CDT (02:56 UTC)
Expired: Oct 22, 2020, 1:00 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

Counties Traverse County, MN, Dickey County, ND, Emmons County, ND, LaMoure County, ND, McIntosh County, ND, Richland County, ND, Sargent County, ND, Sioux County, ND, Brown County, SD, Campbell County, SD, Corson County, SD, Day County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 63 km from the middle of the area, began a volume at 02:55 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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Nearby

Mesoscale Discussions in South Dakota, 2020 Mesoscale Discussions in North Dakota, 2020 Mesoscale Discussions in Minnesota, 2020 Every mesoscale discussion in 2020

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.