Alert archive / Nebraska / Mesoscale Discussions in 2011
Mesoscale Discussion 1935
The Storm Prediction Center issued this mesoscale discussion at Aug 10, 2011, 3:42 PM MDT for 4 states. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Aug 10, 2011, 3:42 PM MDT (21:42 UTC)
- Expired
- Aug 10, 2011, 4:45 PM MDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 25 counties
Logan County, CO, Phillips County, CO, Sedgwick County, CO, Arthur County, NE, Banner 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, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE, Bennett County, SD, Fall River County, SD, Oglala Lakota County, SD, Laramie County, WY
The radar
The North Platte radar (KLNX), 178 km from the middle of the area, began a volume at 21:43 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.7 hours before the alert went out and 192 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
- 23 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- -64 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 |
|---|---|---|---|---|
| Aug 9, 8:26 PM MDT | Mesoscale Discussion | SPC | Logan, Morgan, Phillips, Sedgwick, Washington, Weld and 1 more | 64 min |
| Aug 9, 8:51 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Logan, Phillips, Sedgwick, Washington and 1 more | 7 hr |
| Aug 10, 4:03 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick, Washington | 6 hr |
| Aug 10, 5:54 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Logan, Phillips, Sedgwick, Washington and 1 more | 66 min |
| Aug 10, 2:53 AM MDT | Mesoscale Discussion | SPC | Chase, Dundy, Frontier, Hayes, Hitchcock, Lincoln and 2 more | 67 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.