Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 840

May 9, 20085 states

The Storm Prediction Center issued this mesoscale discussion at May 9, 2008, 12:00 PM MDT for 5 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 9, 2008, 12:00 PM MDT (18:00 UTC)
Expired: May 9, 2008, 2:30 PM MDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 25 counties

Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Banner County, NE, Box Butte County, NE, Chase County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Keith County, NE, Kimball County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sioux County, NE, Fall River County, SD, Goshen County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 151 km from the middle of the area, began a volume at 17:59 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.

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
May 9, 1:18 PM MDT	Severe Thunderstorm Watch	SPC	Kit Carson, Logan, Phillips, Sedgwick, Washington, Yuma	6 hr
May 9, 2:47 PM MDT	Mesoscale Discussion	SPC	Kit Carson, Logan, Phillips, Sedgwick, Washington, Yuma	118 min
May 9, 5:02 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Kit Carson, Logan, Phillips, Sedgwick, Yuma	118 min
May 8, 6:19 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 25 more	56 min
May 8, 7:08 PM MDT	Severe Thunderstorm Watch	SPC	Barber, Butler, Chautauqua, Clark, Comanche, Cowley and 18 more	6 hr
May 8, 11:33 PM MDT	Mesoscale Discussion	SPC	Allen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 8 more	87 min
May 9, 12:21 AM MDT	Severe Thunderstorm Watch	SPC	Cherokee, Crawford	3 hr
May 9, 12:30 PM MDT	Severe Thunderstorm Watch	SPC	Banner, Box Butte, Cheyenne, Dawes, Deuel, Garden and 5 more	6 hr

Nearby

Mesoscale Discussions in Nebraska, 2008 Mesoscale Discussions in Colorado, 2008 Mesoscale Discussions in Wyoming, 2008 Every mesoscale discussion in 2008

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.