Alert archive / Wyoming / Mesoscale Discussions in 2020

Mesoscale Discussion 1037

June 28, 2020Carter County, Powder River County, Montana; Butte County, Lawrence County, South Dakota; 7 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2020, 1:11 PM MDT for Carter County, Powder River County, Montana; Butte County, Lawrence County, South Dakota; 7 counties in Wyoming. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 28, 2020, 1:11 PM MDT (19:11 UTC)
Expired
Jun 28, 2020, 3:15 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch likely
Chance of a watch
80%

Counties Carter County, MT, Powder River County, MT, Butte County, SD, Lawrence County, SD, Campbell County, WY, Converse County, WY, Crook County, WY, Johnson County, WY, Niobrara County, WY, Sheridan County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 203 km from the middle of the area, began a volume at 19:15 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.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 6:07 PM MDTMesoscale DiscussionSPCDaniels, Valley113 min
Jun 28, 1:39 PM MDTSevere Thunderstorm WatchSPCCarter, Powder River8 hr
Jun 28, 5:18 PM MDTMesoscale DiscussionSPCCarter, Powder River117 min

Nearby

Mesoscale Discussions in Wyoming, 2020Mesoscale Discussions in Montana, 2020Mesoscale Discussions in South Dakota, 2020Every 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.