Alert archive / South Dakota / Mesoscale Discussions in 2016

Mesoscale Discussion 1090

June 29, 20166 counties in Montana; 7 counties in South Dakota; 6 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2016, 12:47 PM MDT for 6 counties in Montana; 7 counties in South Dakota; 6 counties in Wyoming. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2016, 12:47 PM MDT (18:47 UTC)
Expired: Jun 29, 2016, 2:15 PM MDT
In force: 88 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Big Horn County, MT, Carter County, MT, Golden Valley County, MT, Powder River County, MT, Treasure County, MT, Yellowstone County, MT, Butte County, SD, Custer County, SD, Fall River County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Campbell County, WY, Crook County, WY, Johnson County, WY, Niobrara County, WY, Sheridan County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 239 km from the middle of the area, began a volume at 18:48 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 310Jun 29, 2:40 PM MDT

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 29, 12:13 PM MDT	Mesoscale Discussion	SPC	Carter, Fallon	92 min
Jun 29, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	Bennett, Butte, Haakon, Harding, Jackson, Lawrence and 8 more	5 hr
Jun 29, 4:15 PM MDT	Mesoscale Discussion	SPC	Butte, Dewey, Haakon, Jackson, Jones, Meade and 6 more	2 hr
Jun 29, 4:36 PM MDT	Mesoscale Discussion	SPC	Clay, Davison, Hanson, Hutchinson, Lincoln, McCook and 4 more	114 min
Jun 29, 2:52 PM MDT	Mesoscale Discussion	SPC	Laramie	53 min

Nearby

Mesoscale Discussions in South Dakota, 2016 Mesoscale Discussions in Montana, 2016 Mesoscale Discussions in Wyoming, 2016 Every mesoscale discussion in 2016

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.