Alert archive / South Dakota / Mesoscale Discussions in 2008

Mesoscale Discussion 674

April 20, 200813 counties in North Dakota; 18 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Apr 20, 2008, 6:05 PM MDT for 13 counties in North Dakota; 18 counties in South Dakota. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued: Apr 20, 2008, 6:05 PM MDT (00:05 UTC)
Expired: Apr 20, 2008, 7:00 PM MDT
In force: 55 min
Issued by: the Storm Prediction Center

All 31 counties

Adams County, ND, Billings County, ND, Bowman County, ND, Dunn County, ND, Grant County, ND, Hettinger County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Bennett County, SD, Butte County, SD, Corson County, SD, Custer County, SD, Dewey County, SD, Fall River County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Stanley County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 108 km from the middle of the area, began a volume at 00:05 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, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 21, 10:54 AM MDT	Mesoscale Discussion	SPC	Brookings, Deuel, Grant, Lincoln, Minnehaha, Moody and 1 more	2 hr

Nearby

Mesoscale Discussions in South Dakota, 2008 Mesoscale Discussions in North Dakota, 2008 Every mesoscale discussion in 2008

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.