Alert archive / Montana / Mesoscale Discussions in 2011

Mesoscale Discussion 1491

July 3, 201119 counties in Montana; 10 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2011, 8:02 PM MDT for 19 counties in Montana; 10 counties in North Dakota. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: Jul 3, 2011, 8:02 PM MDT (02:02 UTC)
Expired: Jul 3, 2011, 9:00 PM MDT
In force: 58 min
Issued by: the Storm Prediction Center

All 29 counties

Big Horn County, MT, Carter County, MT, Custer County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, Garfield County, MT, McCone County, MT, Musselshell County, MT, Petroleum County, MT, Powder River County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Rosebud County, MT, Sheridan County, MT, Treasure County, MT, Valley County, MT, Wibaux County, MT, Billings County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, McKenzie County, ND, Mountrail County, ND, Slope County, ND, Williams County, ND

The radar

The Glasgow radar (KGGW), 181 km from the middle of the area, began a volume at 02:05 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.

Severe Thunderstorm Watch 592Jul 3, 8:40 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 3, 6:29 PM MDT	Mesoscale Discussion	SPC	Big Horn, Blaine, Carbon, Custer, Dawson, Fergus and 14 more	2 hr
Jul 3, 8:41 PM MDT	Severe Thunderstorm Watch	SPC	Daniels, Richland, Roosevelt, Sheridan, Wibaux	3 hr
Jul 3, 10:30 PM MDT	Mesoscale Discussion	SPC	Carter, Custer, Daniels, Dawson, Fallon, McCone and 5 more	90 min
Jul 4, 12:56 PM MDT	Mesoscale Discussion	SPC	Benson, Bottineau, Cavalier, Eddy, Foster, Grand Forks and 13 more	64 min
Jul 4, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	Barnes, Benson, Burleigh, Cass, Cavalier, Dickey and 22 more	7 hr
Jul 4, 5:09 PM MDT	Mesoscale Discussion	SPC	Barnes, Cass, Dickey, Eddy, Foster, Grand Forks and 13 more	2 hr

Nearby

Mesoscale Discussions in Montana, 2011 Mesoscale Discussions in North Dakota, 2011 Every mesoscale discussion in 2011

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.