Alert archive / Iowa / Mesoscale Discussions in 2003

Mesoscale Discussion 500

April 19, 200317 counties in Illinois; 26 counties in Iowa

The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2003, 12:15 PM CDT for 17 counties in Illinois; 26 counties in Iowa. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Apr 19, 2003, 12:15 PM CDT (17:15 UTC)
Expired: Apr 19, 2003, 2:45 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 43 counties

Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Linn County, IA, Louisa County, IA, Mahaska County, IA, Marion County, IA, Muscatine County, IA, Poweshiek County, IA, Scott County, IA, Tama County, IA, Wapello County, IA, Washington County, IA, Bureau County, IL, Carroll County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, Knox County, IL, Lee County, IL, Mercer County, IL, Ogle County, IL, Peoria County, IL, Rock Island County, IL, Stark County, IL, Stephenson County, IL, Tazewell County, IL, Warren County, IL, Whiteside County, IL, Winnebago County, IL

The radar

The Quad Cities radar (KDVN), 22 km from the middle of the area, began a volume at 17:15 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 18, 7:33 PM CDT	Mesoscale Discussion	SPC	Fremont, Mills, Page, Taylor	57 min
Apr 18, 7:48 PM CDT	Mesoscale Discussion	SPC	Adair, Audubon, Boone, Calhoun, Carroll, Cass and 24 more	87 min
Apr 18, 9:56 PM CDT	Mesoscale Discussion	SPC	Crawford, Harrison, Ida, Monona, Pottawattamie, Sac and 2 more	64 min

Nearby

Mesoscale Discussions in Iowa, 2003 Mesoscale Discussions in Illinois, 2003 Every mesoscale discussion in 2003

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.