Alert archive / Montana / Mesoscale Discussions in 2020

Mesoscale Discussion 774

May 31, 20204 counties in Montana

The Storm Prediction Center issued this mesoscale discussion at May 31, 2020, 2:29 PM MDT for 4 counties in Montana. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 31, 2020, 2:29 PM MDT (20:29 UTC)
Expired: May 31, 2020, 4:30 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

Counties Blaine County, MT, Daniels County, MT, Phillips County, MT, Valley County, MT

The radar

The Glasgow radar (KGGW), 42 km from the middle of the area, began a volume at 20:29 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
May 30, 9:06 PM MDT	Mesoscale Discussion	SPC	Mineral, Sanders	114 min
May 31, 2:35 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carter, Custer, Dawson, Fallon, Powder River and 4 more	115 min
May 31, 4:07 PM MDT	Severe Thunderstorm Watch	SPC	Carter, Custer, Dawson, Fallon, Powder River, Prairie and 1 more	6 hr

Nearby

Mesoscale Discussions in Montana, 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.