Alert archive / South Dakota / Mesoscale Discussions in 2022

Mesoscale Discussion 2007

December 12, 2022Sheridan County, Nebraska; 5 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Dec 12, 2022, 10:29 PM MST for Sheridan County, Nebraska; 5 counties in South Dakota. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Dec 12, 2022, 10:29 PM MST (05:29 UTC)
Expired: Dec 13, 2022, 2:30 AM MST
In force: 4 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

Counties Sheridan County, NE, Bennett County, SD, Haakon County, SD, Jackson County, SD, Mellette County, SD, Oglala Lakota County, SD

The radar

The Rapid City radar (KUDX), 115 km from the middle of the area, began a volume at 05:34 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
Dec 13, 3:24 AM MST	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 13 more	5 hr
Dec 13, 10:14 AM MST	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Cheyenne, Dawes, Deuel and 9 more	3 hr
Dec 13, 1:41 PM MST	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 13 more	4 hr

Nearby

Mesoscale Discussions in South Dakota, 2022 Mesoscale Discussions in Nebraska, 2022 Every mesoscale discussion in 2022

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.