Alert archive / Michigan / Mesoscale Discussions in 2009

Mesoscale Discussion 560

April 25, 200932 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2009, 1:06 PM EDT for 32 counties in Michigan. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Apr 25, 2009, 1:06 PM EDT (17:06 UTC)
Expired: Apr 25, 2009, 2:30 PM EDT
In force: 84 min
Issued by: the Storm Prediction Center

All 32 counties

Arenac County, MI, Barry County, MI, Bay County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Gratiot County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Montcalm County, MI, Oakland County, MI, Ogemaw County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI

The radar

The Detroit radar (KDTX), 88 km from the middle of the area, began a volume at 17:08 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 182Apr 25, 3:40 PM EDT

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 24, 8:42 PM EDT	Mesoscale Discussion	SPC	Dickinson, Gogebic, Iron, Ontonagon	63 min
Apr 25, 10:23 AM EDT	Mesoscale Discussion	SPC	Alcona, Alpena, Arenac, Barry, Bay, Clare and 27 more	2 hr
Apr 25, 10:44 AM EDT	Severe Thunderstorm Watch	SPC	Alcona, Allegan, Alpena, Arenac, Barry, Bay and 35 more	5 hr
Apr 25, 11:55 AM EDT	Mesoscale Discussion	SPC	Alcona, Alpena, Arenac, Barry, Bay, Calhoun and 31 more	95 min
Apr 25, 2:55 PM EDT	Mesoscale Discussion	SPC	Allegan, Arenac, Barry, Bay, Berrien, Branch and 25 more	95 min
Apr 25, 3:39 PM EDT	Severe Thunderstorm Watch	SPC	Allegan, Barry, Berrien, Branch, Calhoun, Cass and 23 more	6 hr
Apr 25, 7:15 PM EDT	Mesoscale Discussion	SPC	Allegan, Barry, Berrien, Branch, Calhoun, Cass and 21 more	60 min

Nearby

Mesoscale Discussions in Michigan, 2009 Every mesoscale discussion in 2009

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.