Alert archive / Michigan / Mesoscale Discussions in 2013

Mesoscale Discussion 742

May 21, 20137 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at May 21, 2013, 12:25 AM EDT for 7 counties in Michigan. It was in force for 35 min.

The area

The outline as issued.

The facts

Issued: May 21, 2013, 12:25 AM EDT (04:25 UTC)
Expired: May 21, 2013, 1:00 AM EDT
In force: 35 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Ionia County, MI, Kalamazoo County, MI, Kent County, MI, Montcalm County, MI

The radar

The Grand Rapids radar (KGRR), 26 km from the middle of the area, began a volume at 04:27 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
May 21, 12:15 AM EDT	Severe Thunderstorm Watch	SPC	Berrien, Cass, Saint Joseph	5 hr

Nearby

Mesoscale Discussions in Michigan, 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.