Alert archive / Montana / Mesoscale Discussions in 2018

Mesoscale Discussion 667

June 7, 201810 counties in Montana; 6 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2018, 5:16 PM MDT for 10 counties in Montana; 6 counties in Wyoming. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Jun 7, 2018, 5:16 PM MDT (23:16 UTC)
Expired
Jun 7, 2018, 7:15 PM MDT
In force
119 min
Issued by
the Storm Prediction Center

Counties Carter County, MT, Custer County, MT, Dawson County, MT, Fallon County, MT, McCone County, MT, Powder River County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Wibaux County, MT, Campbell County, WY, Converse County, WY, Crook County, WY, Goshen County, WY, Niobrara County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 249 km from the middle of the area, began a volume at 23:16 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 7, 10:24 AM MDTMesoscale DiscussionSPCDawson, Fergus, Garfield, McCone, Musselshell, Petroleum and 5 more66 min
Jun 7, 1:20 PM MDTMesoscale DiscussionSPCBeaverhead, Broadwater, Carbon, Deer Lodge, Gallatin, Jefferson and 6 more85 min
Jun 7, 1:51 PM MDTMesoscale DiscussionSPCCarter, Custer, Dawson, Fallon, McCone, Powder River and 5 more84 min
Jun 7, 3:49 PM MDTSevere Thunderstorm WatchSPCBig Horn, Carter, Custer, Fallon, Powder River, Rosebud and 1 more9 hr

Nearby

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