Alert archive / Indiana / Mesoscale Discussions in 2017
Mesoscale Discussion 1286
The Storm Prediction Center issued this mesoscale discussion at Jul 11, 2017, 10:16 AM CDT for Douglas County, Edgar County, Vermilion County, Illinois; 9 counties in Indiana. It was in force for 29 min.
The area
The outline as issued.
The facts
- Issued
- Jul 11, 2017, 10:16 AM CDT (15:16 UTC)
- Expired
- Jul 11, 2017, 10:45 AM CDT
- In force
- 29 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
Counties Douglas County, IL, Edgar County, IL, Vermilion County, IL, Fountain County, IN, Hendricks County, IN, Montgomery County, IN, Parke County, IN, Putnam County, IN, Tippecanoe County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN
The radar
The Indianapolis radar (KIND), 92 km from the middle of the area, began a volume at 15:16 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 12:00Z, 3.3 hours before the alert went out and 114 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
- 2430 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 8:56 PM CDT | Mesoscale Discussion | SPC | Bureau, Cass, Champaign, Christian, Clark, Coles and 41 more | 2 hr |
Nearby
Mesoscale Discussions in Indiana, 2017Mesoscale Discussions in Illinois, 2017Every mesoscale discussion in 2017
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.