Alert archive / Indiana / Mesoscale Discussions in 2007
Mesoscale Discussion 1657
The Storm Prediction Center issued this mesoscale discussion at Aug 5, 2007, 7:56 PM CDT for 13 counties in Illinois; 34 counties in Indiana. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Aug 5, 2007, 7:56 PM CDT (00:56 UTC)
- Expired
- Aug 5, 2007, 9:00 PM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 47 counties
Champaign County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Iroquois County, IL, Kankakee County, IL, Livingston County, IL, Logan County, IL, McLean County, IL, Piatt County, IL, Vermilion County, IL, Woodford County, IL, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Delaware County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Newton County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Starke County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Wabash County, IN, Warren County, IN, White County, IN, Whitley County, IN
The radar
The Indianapolis radar (KIND), 108 km from the middle of the area, began a volume at 00:58 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
Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 129 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
- 1547 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1378 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 10.0
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 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Henry and 10 more | 83 min |
| Aug 6, 3:18 PM CDT | Mesoscale Discussion | SPC | Blackford, Boone, Carroll, Cass, Clinton, Delaware and 27 more | 87 min |
Nearby
Mesoscale Discussions in Indiana, 2007Mesoscale Discussions in Illinois, 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.