Alert archive / Minnesota / Mesoscale Discussions in 2008

Mesoscale Discussion 677

April 21, 20084 states

The Storm Prediction Center issued this mesoscale discussion at Apr 21, 2008, 11:54 AM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Apr 21, 2008, 11:54 AM CDT (16:54 UTC)
Expired: Apr 21, 2008, 2:00 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 32 counties

Cherokee County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Big Stone County, MN, Chippewa County, MN, Jackson County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Stevens County, MN, Swift County, MN, Yellow Medicine County, MN, Dakota County, NE, Thurston County, NE, Brookings County, SD, Deuel County, SD, Grant County, SD, Lincoln County, SD, Minnehaha County, SD, Moody County, SD, Union County, SD

The radar

The Sioux Falls radar (KFSD), 55 km from the middle of the area, began a volume at 16:53 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 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
Apr 20, 7:05 PM CDT	Mesoscale Discussion	SPC	Bennett, Butte, Corson, Custer, Dewey, Fall River and 12 more	55 min

Nearby

Mesoscale Discussions in Minnesota, 2008 Mesoscale Discussions in Iowa, 2008 Mesoscale Discussions in South Dakota, 2008 Every mesoscale discussion in 2008

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.