Alert archive / Iowa / Mesoscale Discussions in 2018

Mesoscale Discussion 1478

September 19, 20184 states

The Storm Prediction Center issued this mesoscale discussion at Sep 19, 2018, 2:40 AM CDT for 4 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Sep 19, 2018, 2:40 AM CDT (07:40 UTC)
Expired: Sep 19, 2018, 5:45 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 5%

All 62 counties

Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Webster County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Martin County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Watonwan County, MN, Boyd County, NE, Cedar County, NE, Dakota County, NE, Dixon County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Pierce County, NE, Thurston County, NE, Wayne County, NE, Aurora County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Tripp County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 59 km from the middle of the area, began a volume at 07:43 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
Sep 19, 3:47 AM CDT	Mesoscale Discussion	SPC	Big Stone, Lac qui Parle, Lincoln	3 hr
Sep 19, 5:31 PM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Colfax, Cuming, Custer, Dawson and 16 more	119 min

Nearby

Mesoscale Discussions in Iowa, 2018 Mesoscale Discussions in South Dakota, 2018 Mesoscale Discussions in Nebraska, 2018 Every mesoscale discussion in 2018

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.