Alert archive / South Dakota / Mesoscale Discussions in 2018

Mesoscale Discussion 945

June 29, 2018Emmons County, Sioux County, North Dakota; 14 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2018, 5:57 PM CDT for Emmons County, Sioux County, North Dakota; 14 counties in South Dakota. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2018, 5:57 PM CDT (22:57 UTC)
Expired: Jun 29, 2018, 7:00 PM CDT
In force: 63 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

Counties Emmons County, ND, Sioux County, ND, Bennett County, SD, Campbell County, SD, Corson County, SD, Dewey County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Mellette County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Walworth County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 23:00 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 243Jun 29, 6:15 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
Jun 28, 9:06 PM CDT	Mesoscale Discussion	SPC	Adams, Barnes, Benson, Billings, Bowman, Burleigh and 33 more	84 min
Jun 28, 10:21 PM CDT	Mesoscale Discussion	SPC	Adams, Barnes, Benson, Billings, Bottineau, Burke and 43 more	84 min
Jun 28, 10:54 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Barnes, Benson, Billings, Bottineau, Bowman and 43 more	9 hr
Jun 29, 2:02 AM CDT	Mesoscale Discussion	SPC	Adams, Barnes, Benson, Bowman, Burleigh, Cass and 35 more	118 min
Jun 29, 4:14 AM CDT	Mesoscale Discussion	SPC	Cass, Cavalier, Grand Forks, Pembina, Ramsey, Ransom and 4 more	2 hr
Jun 29, 2:06 PM CDT	Severe Thunderstorm Watch	SPC	Butte, Custer, Fall River, Harding, Lawrence, Meade and 3 more	9 hr
Jun 29, 3:29 PM CDT	Mesoscale Discussion	SPC	Butte, Custer, Fall River, Harding, Lawrence, Meade and 4 more	91 min
Jun 29, 6:19 PM CDT	Severe Thunderstorm Watch	SPC	Bennett, Buffalo, Campbell, Corson, Dewey, Edmunds and 18 more	8 hr

Nearby

Mesoscale Discussions in South Dakota, 2018 Mesoscale Discussions in North Dakota, 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.