Alert archive / Montana / Mesoscale Discussions in 2018

Mesoscale Discussion 365

May 7, 201811 counties in Montana; Butte County, Custer County, Lawrence County, South Dakota; 5 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at May 7, 2018, 2:49 PM MDT for 11 counties in Montana; Butte County, Custer County, Lawrence County, South Dakota; 5 counties in Wyoming. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: May 7, 2018, 2:49 PM MDT (20:49 UTC)
Expired: May 7, 2018, 4:45 PM MDT
In force: 116 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Big Horn County, MT, Carter County, MT, Custer County, MT, Garfield County, MT, Musselshell County, MT, Petroleum County, MT, Powder River County, MT, Prairie County, MT, Rosebud County, MT, Treasure County, MT, Yellowstone County, MT, Butte County, SD, Custer County, SD, Lawrence County, SD, Campbell County, WY, Crook County, WY, Johnson County, WY, Sheridan County, WY, Weston County, WY

The radar

The Billings radar (KBLX), 194 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 text

As transmitted.

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Nearby

Mesoscale Discussions in Montana, 2018 Mesoscale Discussions in Wyoming, 2018 Mesoscale Discussions in South 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.