Alert archive / Nebraska / Mesoscale Discussions in 2011
Mesoscale Discussion 1208
The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2011, 1:53 PM MDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2011, 1:53 PM MDT (19:53 UTC)
- Expired
- Jun 13, 2011, 4:00 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 31 counties
Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Weld County, CO, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase 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, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Lyman County, SD, Mellette County, SD, Todd County, SD, Tripp County, SD, Goshen County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 192 km from the middle of the area, began a volume at 19:55 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 nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 7.9 hours before the alert went out and 214 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 4:24 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Elbert, Kit Carson, Lincoln, Logan, Morgan and 4 more | 7 hr |
| Jun 12, 6:07 PM MDT | Mesoscale Discussion | SPC | Brown, Buffalo, Corson, Dewey, Edmunds, Faulk and 16 more | 53 min |
| Jun 12, 6:33 PM MDT | Severe Thunderstorm Watch | SPC | Buffalo, Campbell, Corson, Dewey, Haakon, Hughes and 12 more | 6 hr |
| Jun 12, 8:55 PM MDT | Mesoscale Discussion | SPC | Bennett, Campbell, Corson, Dewey, Haakon, Hughes and 11 more | 65 min |
| Jun 13, 12:44 AM MDT | Mesoscale Discussion | SPC | Jones, Lyman, Mellette, Todd, Tripp | 61 min |
Nearby
Mesoscale Discussions in Nebraska, 2011Mesoscale Discussions in Colorado, 2011Mesoscale Discussions in South Dakota, 2011Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.