Alert archive / Nebraska / Mesoscale Discussions in 2007
Mesoscale Discussion 1097
The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2007, 2:30 PM MDT for 6 counties in Colorado; 4 counties in Kansas; 16 counties in Nebraska. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2007, 2:30 PM MDT (20:30 UTC)
- Expired
- Jun 11, 2007, 4:00 PM MDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 26 counties
Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Rawlins County, KS, Sherman County, KS, Thomas County, KS, Arthur County, NE, 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, Grant County, NE, Keith County, NE, Kimball County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE
The radar
The Cheyenne radar (KCYS), 161 km from the middle of the area, began a volume at 20:31 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
Denver, CO (KDNR), launched 12:00Z, 8.5 hours before the alert went out and 165 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
- 3541 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 28 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 11, 2:47 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick, Washington, Yuma | 7 hr |
| Jun 10, 7:06 PM MDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Neosho | 84 min |
Nearby
Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in Colorado, 2007Mesoscale Discussions in Kansas, 2007Every mesoscale discussion in 2007
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.