Alert archive / Iowa / Mesoscale Discussions in 2014

Mesoscale Discussion 426

April 27, 20149 counties in Illinois; 25 counties in Iowa

The Storm Prediction Center issued this mesoscale discussion at Apr 27, 2014, 4:26 PM CDT for 9 counties in Illinois; 25 counties in Iowa. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Apr 27, 2014, 4:26 PM CDT (21:26 UTC)
Expired: Apr 27, 2014, 5:30 PM CDT
In force: 64 min
Issued by: the Storm Prediction Center

All 34 counties

Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buchanan County, IA, Cedar County, IA, Clayton County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Fayette County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Carroll County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, Knox County, IL, Mercer County, IL, Rock Island County, IL, Warren County, IL

The radar

The Quad Cities radar (KDVN), 83 km from the middle of the area, began a volume at 21:28 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 27, 1:59 PM CDT	Mesoscale Discussion	SPC	Calhoun	61 min
Apr 27, 2:13 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Brown, Calhoun, Cass, Fulton, Greene and 14 more	7 hr
Apr 27, 10:37 AM CDT	Mesoscale Discussion	SPC	Page, Ringgold, Taylor	113 min
Apr 27, 11:23 AM CDT	Tornado Watch	SPC	Adair, Adams, Appanoose, Audubon, Cass, Clarke and 14 more	8 hr

Nearby

Mesoscale Discussions in Iowa, 2014 Mesoscale Discussions in Illinois, 2014 Every mesoscale discussion in 2014

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.