Alert archive / Illinois / Mesoscale Discussions in 2009

Mesoscale Discussion 567

April 25, 20094 states

The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2009, 5:32 PM CDT for 4 states. It was in force for 73 min.

The area

The outline as issued.

The facts

Issued: Apr 25, 2009, 5:32 PM CDT (22:32 UTC)
Expired: Apr 25, 2009, 6:45 PM CDT
In force: 73 min
Issued by: the Storm Prediction Center

All 77 counties

Cedar County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Adams County, IL, Boone County, IL, Brown County, IL, Bureau County, IL, Carroll County, IL, Cass County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Fulton County, IL, Grundy County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Morgan County, IL, Ogle County, IL, Peoria County, IL, Pike County, IL, Putnam County, IL, Rock Island County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Stephenson County, IL, Tazewell County, IL, Warren County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Clark County, MO, Lewis County, MO, Marion County, MO, Dane County, WI, Grant County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Racine County, WI, Rock County, WI, Walworth County, WI, Waukesha County, WI

The radar

The Quad Cities radar (KDVN), 107 km from the middle of the area, began a volume at 22:33 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 25, 1:55 PM CDT	Mesoscale Discussion	SPC	Cook, Will	95 min
Apr 24, 7:42 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Allamakee, Benton, Black Hawk, Boone and 35 more	63 min
Apr 24, 9:40 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Allamakee, Black Hawk, Boone, Bremer and 23 more	65 min
Apr 25, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	Appanoose, Davis, Decatur, Monroe, Wapello, Wayne	6 hr

Nearby

Mesoscale Discussions in Illinois, 2009 Mesoscale Discussions in Iowa, 2009 Mesoscale Discussions in Wisconsin, 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.