Alert archive / Illinois / Mesoscale Discussions in 2005

Mesoscale Discussion 1861

July 25, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Jul 25, 2005, 1:31 PM CDT for 4 states. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: Jul 25, 2005, 1:31 PM CDT (18:31 UTC)
Expired: Jul 25, 2005, 3:00 PM CDT
In force: 89 min
Issued by: the Storm Prediction Center

All 59 counties

Cedar County, IA, Clinton County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Boone County, IL, Bureau County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Henderson County, IL, Henry County, IL, Iroquois 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, McHenry County, IL, Mercer County, IL, Ogle County, IL, Peoria County, IL, Putnam County, IL, Rock Island County, IL, Stark County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Lake County, IN, Newton County, IN, Columbia County, WI, Dane County, WI, Dodge County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Rock County, WI, Walworth County, WI, Waukesha County, WI

The radar

The Chicago radar (KLOT), 110 km from the middle of the area, began a volume at 18:35 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.

Tornado Watch 682Jul 25, 4:40 PM CDT

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 24, 8:20 PM CDT	Severe Thunderstorm Watch	SPC	Jo Daviess, Stephenson	5 hr
Jul 24, 11:11 PM CDT	Mesoscale Discussion	SPC	Jo Daviess	64 min
Jul 25, 8:53 AM CDT	Mesoscale Discussion	SPC	Cook, DeKalb, DuPage, Grundy, Iroquois, Kane and 7 more	97 min
Jul 25, 10:05 AM CDT	Severe Thunderstorm Watch	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more	7 hr
Jul 25, 3:50 PM CDT	Mesoscale Discussion	SPC	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	55 min
Jul 25, 9:25 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Carroll, Cass, DeKalb, Elkhart and 17 more	8 hr
Jul 25, 11:57 AM CDT	Mesoscale Discussion	SPC	Adams, Allen, Cass, DeKalb, Elkhart, Fulton and 12 more	93 min
Jul 25, 1:53 PM CDT	Mesoscale Discussion	SPC	Adams, Cass, Huntington, Miami, Pulaski, Wabash and 1 more	67 min
Jul 24, 8:26 PM CDT	Mesoscale Discussion	SPC	Boone, Buena Vista, Butler, Calhoun, Carroll, Cerro Gordo and 19 more	94 min
Jul 24, 9:45 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	5 hr
Jul 24, 11:45 PM CDT	Mesoscale Discussion	SPC	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	60 min
Jul 25, 1:55 PM CDT	Mesoscale Discussion	SPC	Black Hawk, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 32 more	2 hr
Jul 25, 3:30 PM CDT	Tornado Watch	SPC	Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee, Chickasaw and 19 more	7 hr
Jul 25, 4:40 PM CDT	Tornado Watch	SPC	Allamakee, Clayton, Fayette, Winneshiek	7 hr
Jul 25, 4:53 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Boone, Calhoun, Carroll and 20 more	67 min
Jul 25, 5:25 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Adams, Audubon, Boone, Calhoun, Carroll and 17 more	4 hr
Jul 25, 6:56 PM CDT	Mesoscale Discussion	SPC	Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee and 18 more	94 min
Jul 25, 4:22 PM CDT	Mesoscale Discussion	SPC	Adams, Barron, Brown, Buffalo, Calumet, Chippewa and 42 more	23 min

Nearby

Mesoscale Discussions in Illinois, 2005 Mesoscale Discussions in Iowa, 2005 Mesoscale Discussions in Wisconsin, 2005 Every mesoscale discussion in 2005

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.