Alert archive / Montana / Mesoscale Discussions in 2013

Mesoscale Discussion 1401

July 15, 20134 states

The Storm Prediction Center issued this mesoscale discussion at Jul 15, 2013, 1:51 PM MDT for 4 states. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Jul 15, 2013, 1:51 PM MDT (19:51 UTC)
Expired: Jul 15, 2013, 3:15 PM MDT
In force: 84 min
Issued by: the Storm Prediction Center
Chance of a watch: 95%

All 25 counties

Carter County, MT, Custer County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, McCone County, MT, Powder River County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT, Billings County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Golden Valley County, ND, McKenzie County, ND, Slope County, ND, Williams County, ND, Butte County, SD, Harding County, SD, Lawrence County, SD, Crook County, WY

The radar

The Glasgow radar (KGGW), 219 km from the middle of the area, began a volume at 19:53 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.

Tornado Watch 415Jul 15, 2:50 PM MDT

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 15, 2:48 PM MDT	Tornado Watch	SPC	Carter, Daniels, Dawson, Fallon, McCone, Prairie and 4 more	8 hr
Jul 15, 4:39 PM MDT	Mesoscale Discussion	SPC	Roosevelt, Sheridan	66 min

Nearby

Mesoscale Discussions in Montana, 2013 Mesoscale Discussions in North Dakota, 2013 Mesoscale Discussions in South Dakota, 2013 Every mesoscale discussion in 2013

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.