Alert archive / South Dakota / Mesoscale Discussions in 2020

Mesoscale Discussion 1585

August 26, 20206 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2020, 6:21 PM MDT for 6 counties in South Dakota. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: Aug 26, 2020, 6:21 PM MDT (00:21 UTC)
Expired: Aug 26, 2020, 8:15 PM MDT
In force: 114 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 5%

Counties Bennett County, SD, Jackson County, SD, Jones County, SD, Mellette County, SD, Oglala Lakota County, SD, Todd County, SD

The radar

The Rapid City radar (KUDX), 141 km from the middle of the area, began a volume at 00:20 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.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 27, 4:52 PM MDT	Mesoscale Discussion	SPC	Butte, Custer, Fall River, Harding, Lawrence, Meade and 4 more	83 min
Aug 27, 5:31 PM MDT	Severe Thunderstorm Watch	SPC	Bennett, Butte, Corson, Custer, Dewey, Fall River and 14 more	7 hr

Nearby

Mesoscale Discussions in South Dakota, 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.