Alert archive / Nebraska / Mesoscale Discussions in 2011
Mesoscale Discussion 1462
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2011, 2:47 PM MDT for 12 counties in Nebraska; Goshen County, Wyoming. It was in force for 58 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2011, 2:47 PM MDT (20:47 UTC)
- Expired
- Jul 1, 2011, 3:45 PM MDT
- In force
- 58 min
- Issued by
- the Storm Prediction Center
Counties Arthur County, NE, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Goshen County, WY
The radar
The Cheyenne radar (KCYS), 160 km from the middle of the area, began a volume at 20:49 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 202 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
- 2372 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 0 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 30, 7:25 PM MDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 15 more | 2 hr |
| Jul 1, 11:59 AM MDT | Mesoscale Discussion | SPC | Boyd, Cedar, Knox | 61 min |
Nearby
Mesoscale Discussions in Nebraska, 2011Mesoscale Discussions in Wyoming, 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.