Alert archive / South Dakota / Mesoscale Discussions in 2018

Mesoscale Discussion 1371

August 27, 20188 counties in Nebraska; 9 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2018, 3:46 PM CDT for 8 counties in Nebraska; 9 counties in South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Aug 27, 2018, 3:46 PM CDT (20:46 UTC)
Expired: Aug 27, 2018, 5:45 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Blaine County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Hooker County, NE, Logan County, NE, Loup County, NE, Thomas County, NE, Bennett County, SD, Custer County, SD, Haakon County, SD, Jackson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD

The radar

The Rapid City radar (KUDX), 134 km from the middle of the area, began a volume at 20:49 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 355Aug 27, 6:40 PM CDT

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, 11:49 AM CDT	Mesoscale Discussion	SPC	Burt, Cedar, Cuming, Dakota, Dixon, Stanton and 2 more	116 min
Aug 27, 6:17 PM CDT	Mesoscale Discussion	SPC	Blaine, Boyd, Brown, Holt, Keya Paha, Logan and 3 more	88 min
Aug 26, 7:37 PM CDT	Tornado Watch	SPC	Brown, Campbell, Clark, Codington, Day, Edmunds and 12 more	5 hr
Aug 26, 10:55 PM CDT	Mesoscale Discussion	SPC	Beadle, Clark, Codington, Day, Deuel, Grant and 4 more	2 hr
Aug 27, 6:42 PM CDT	Severe Thunderstorm Watch	SPC	Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 17 more	4 hr

Nearby

Mesoscale Discussions in South Dakota, 2018 Mesoscale Discussions in Nebraska, 2018 Every mesoscale discussion in 2018

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.