Alert archive / Indiana / Mesoscale Discussions in 2011
Mesoscale Discussion 1719
The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2011, 12:42 PM CDT for 14 counties in Illinois; 27 counties in Indiana. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 24, 2011, 12:42 PM CDT (17:42 UTC)
- Expired
- Jul 24, 2011, 2:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 41 counties
Bond County, IL, Clay County, IL, Clinton County, IL, Edwards County, IL, Hamilton County, IL, Jefferson County, IL, Lawrence County, IL, Madison County, IL, Marion County, IL, Richland County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Bartholomew County, IN, Brown County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Franklin County, IN, Gibson County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Orange County, IN, Pike County, IN, Posey County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN
The radar
The Evansville,IN radar (KVWX), 80 km from the middle of the area, began a volume at 17:42 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, 5.7 hours before the alert went out and 176 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
- 3589 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 12 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 |
|---|---|---|---|---|
| Jul 24, 6:15 AM CDT | Mesoscale Discussion | SPC | DeKalb, DuPage, Kane, Kendall, Lee, Ogle and 1 more | 3 hr |
| Jul 24, 11:21 AM CDT | Mesoscale Discussion | SPC | Christian, Fulton, Logan, Macon, Mason, Menard and 1 more | 114 min |
| Jul 24, 12:42 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Edwards, Hamilton, Jefferson and 8 more | 2 hr |
| Jul 24, 4:55 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 2 hr |
Nearby
Mesoscale Discussions in Indiana, 2011Mesoscale Discussions in Illinois, 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.