Alert archive / Nebraska / Mesoscale Discussions in 2007
Mesoscale Discussion 1767
The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2007, 5:43 AM CDT for 16 counties in Iowa; 8 counties in Missouri; 23 counties in Nebraska. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2007, 5:43 AM CDT (10:43 UTC)
- Expired
- Aug 16, 2007, 6:45 AM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 47 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Cass County, IA, Fremont County, IA, Harrison County, IA, Madison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Andrew County, MO, Atchison County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Worth County, MO, Burt County, NE, Butler County, NE, Cass County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, York County, NE
The radar
The Omaha radar (KOAX), 28 km from the middle of the area, began a volume at 10:44 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 10.7 hours before the alert went out and 367 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
- 2067 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1574 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 16, 7:36 AM CDT | Mesoscale Discussion | SPC | Lee | 54 min |
| Aug 16, 3:01 PM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Buchanan, Caldwell, Callaway, Carroll and 27 more | 119 min |
| Aug 16, 3:22 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Callaway, Carroll, Chariton, Cole, Cooper and 12 more | 5 hr |
Nearby
Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in Iowa, 2007Mesoscale Discussions in Missouri, 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.