Alert archive / Iowa / Mesoscale Discussions in 2020

Mesoscale Discussion 1744

October 11, 202012 counties in Iowa; 5 counties in Missouri; Richardson County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at Oct 11, 2020, 11:28 PM CDT for 12 counties in Iowa; 5 counties in Missouri; Richardson County, Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Oct 11, 2020, 11:28 PM CDT (04:28 UTC)
Expired: Oct 12, 2020, 1:00 AM CDT
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 500

Counties Adair County, IA, Adams County, IA, Audubon County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Greene County, IA, Guthrie County, IA, Montgomery County, IA, Page County, IA, Taylor County, IA, Union County, IA, Andrew County, MO, Atchison County, MO, Holt County, MO, Nodaway County, MO, Worth County, MO, Richardson County, NE

The radar

The Des Moines radar (KDMX), 120 km from the middle of the area, began a volume at 04:31 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.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 11, 9:02 PM CDT	Mesoscale Discussion	SPC	Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 11 more	118 min

Nearby

Mesoscale Discussions in Iowa, 2020 Mesoscale Discussions in Missouri, 2020 Mesoscale Discussions in Nebraska, 2020 Every mesoscale discussion in 2020

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.