Alert archive / South Dakota / Mesoscale Discussions in 2011

Mesoscale Discussion 1777

July 28, 201115 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 28, 2011, 6:19 PM CDT for 15 counties in South Dakota. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jul 28, 2011, 6:19 PM CDT (23:19 UTC)
Expired: Jul 28, 2011, 7:45 PM CDT
In force: 86 min
Issued by: the Storm Prediction Center

Counties Buffalo County, SD, Butte County, SD, Dewey County, SD, Haakon County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lawrence County, SD, Lyman County, SD, Meade County, SD, Pennington County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 82 km from the middle of the area, began a volume at 23:20 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 27, 7:09 PM CDT	Mesoscale Discussion	SPC	Dewey, Haakon, Jackson, Jones, Meade, Pennington and 2 more	2 hr
Jul 28, 2:05 PM CDT	Mesoscale Discussion	SPC	Brown, Butte, Campbell, Corson, Dewey, Edmunds and 10 more	115 min
Jul 28, 3:31 PM CDT	Severe Thunderstorm Watch	SPC	Buffalo, Butte, Campbell, Corson, Custer, Dewey and 21 more	5 hr

Nearby

Mesoscale Discussions in South Dakota, 2011 Every mesoscale discussion in 2011

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.