Alert archive / Wyoming / Mesoscale Discussions in 2018

Mesoscale Discussion 1195

July 29, 2018Carter County, Powder River County, Montana; Butte County, Lawrence County, South Dakota; 11 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jul 29, 2018, 1:12 PM MDT for Carter County, Powder River County, Montana; Butte County, Lawrence County, South Dakota; 11 counties in Wyoming. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jul 29, 2018, 1:12 PM MDT (19:12 UTC)
Expired
Jul 29, 2018, 3:15 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
20%

Counties Carter County, MT, Powder River County, MT, Butte County, SD, Lawrence County, SD, Big Horn County, WY, Campbell County, WY, Converse County, WY, Crook County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Sheridan County, WY, Washakie County, WY, Weston County, WY

The radar

The Riverton/Lander radar (KRIW), 218 km from the middle of the area, began a volume at 19:12 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.

IssuedProductOfficeCountiesLasted
Jul 28, 6:38 PM MDTMesoscale DiscussionSPCFall River97 min
Jul 29, 12:46 PM MDTMesoscale DiscussionSPCCuster, Fall River, Oglala Lakota59 min
Jul 29, 1:34 PM MDTSevere Thunderstorm WatchSPCBennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington7 hr
Jul 29, 4:07 PM MDTMesoscale DiscussionSPCBennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington and 1 more53 min
Jul 29, 1:07 PM MDTTornado WatchSPCAlbany, Converse, Goshen, Laramie, Niobrara, Platte8 hr
Jul 29, 2:20 PM MDTMesoscale DiscussionSPCLaramie55 min
Jul 29, 5:23 PM MDTMesoscale DiscussionSPCAlbany, Converse, Goshen, Laramie, Niobrara, Platte67 min

Nearby

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