Alert archive / Nebraska / Mesoscale Discussions in 2020

Mesoscale Discussion 1472

August 12, 2020Logan County, Phillips County, Sedgwick County, Colorado; 15 counties in Nebraska; 7 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2020, 4:28 PM MDT for Logan County, Phillips County, Sedgwick County, Colorado; 15 counties in Nebraska; 7 counties in South Dakota. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Aug 12, 2020, 4:28 PM MDT (22:28 UTC)
Expired: Aug 12, 2020, 6:00 PM MDT
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

All 25 counties

Logan County, CO, Phillips County, CO, Sedgwick County, CO, Arthur County, NE, Box Butte County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Sheridan County, NE, Bennett County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Oglala Lakota County, SD, Todd County, SD

The radar

The North Platte radar (KLNX), 105 km from the middle of the area, began a volume at 22:29 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
Aug 11, 6:21 PM MDT	Mesoscale Discussion	SPC	Baca	84 min
Aug 11, 6:38 PM MDT	Severe Thunderstorm Watch	SPC	Campbell, Corson, Dewey, Edmunds, Faulk, Harding and 5 more	7 hr
Aug 11, 9:03 PM MDT	Mesoscale Discussion	SPC	Corson, Dewey, Harding, Perkins, Ziebach	117 min
Aug 11, 11:36 PM MDT	Mesoscale Discussion	SPC	Brown, Campbell, Dewey, Edmunds, Faulk, Hand and 6 more	84 min

Nearby

Mesoscale Discussions in Nebraska, 2020 Mesoscale Discussions in South Dakota, 2020 Mesoscale Discussions in Colorado, 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.