Alert archive / South Dakota / Mesoscale Discussions in 2012

Mesoscale Discussion 1556

July 23, 201218 counties in South Dakota; Crook County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jul 23, 2012, 5:31 PM MDT for 18 counties in South Dakota; Crook County, Wyoming. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: Jul 23, 2012, 5:31 PM MDT (23:31 UTC)
Expired: Jul 23, 2012, 7:00 PM MDT
In force: 89 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Butte County, SD, Custer County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Hughes County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Lyman County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Stanley County, SD, Sully County, SD, Ziebach County, SD, Crook County, WY

The radar

The Rapid City radar (KUDX), 38 km from the middle of the area, began a volume at 23:34 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, 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
Jul 22, 7:13 PM MDT	Mesoscale Discussion	SPC	Brown, Campbell, Codington, Corson, Day, Dewey and 9 more	62 min
Jul 22, 9:58 PM MDT	Mesoscale Discussion	SPC	Aurora, Beadle, Bennett, Bon Homme, Brookings, Brule and 29 more	107 min

Nearby

Mesoscale Discussions in South Dakota, 2012 Mesoscale Discussions in Wyoming, 2012 Every mesoscale discussion in 2012

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.