Alert archive / Nebraska / Mesoscale Discussions in 2011

Mesoscale Discussion 1994

August 17, 20114 states

The Storm Prediction Center issued this mesoscale discussion at Aug 17, 2011, 2:00 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Aug 17, 2011, 2:00 PM MDT (20:00 UTC)
Expired: Aug 17, 2011, 4:00 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 31 counties

Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Arthur County, NE, Box Butte County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Sheridan County, NE, Bennett County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Mellette County, SD, Oglala Lakota County, SD, Stanley County, SD, Todd County, SD, Ziebach County, SD

The radar

The North Platte radar (KLNX), 135 km from the middle of the area, began a volume at 20:02 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 783Aug 17, 2:40 PM MDT

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
Aug 17, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Kit Carson, Lincoln, Logan, Phillips, Sedgwick and 2 more	6 hr
Aug 17, 4:43 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, El Paso, Kiowa and 11 more	62 min

Nearby

Mesoscale Discussions in Nebraska, 2011 Mesoscale Discussions in South Dakota, 2011 Mesoscale Discussions in Colorado, 2011 Every mesoscale discussion in 2011

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.