Alert archive / Indiana / Mesoscale Discussions in 2011
Mesoscale Discussion 2202
The Storm Prediction Center issued this mesoscale discussion at Sep 25, 2011, 8:49 PM EDT for 43 counties in Indiana; 25 counties in Kentucky; Montgomery County, Stewart County, Tennessee. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 25, 2011, 8:49 PM EDT (00:49 UTC)
- Expired
- Sep 25, 2011, 11:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 70 counties
Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Gibson County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Harrison County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Daviess County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Hopkins County, KY, Jefferson County, KY, Logan County, KY, Lyon County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Oldham County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Webster County, KY, Montgomery County, TN, Stewart County, TN
The radar
The Louisville radar (KLVX), 66 km from the middle of the area, began a volume at 00:51 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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.8 hours before the alert went out and 238 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
- 9 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 1410 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 291 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 |
|---|---|---|---|---|
| Sep 26, 1:45 AM EDT | Mesoscale Discussion | SPC | Adams, Blackford, Clark, Dearborn, Decatur, Delaware and 18 more | 3 hr |
| Sep 26, 6:43 AM EDT | Tornado Watch | SPC | Bourbon, Boyle, Bracken, Campbell, Casey, Clark and 16 more | 3 hr |
| Sep 26, 2:16 PM EDT | Mesoscale Discussion | SPC | Floyd, Letcher, Martin, Pike | 59 min |
Nearby
Mesoscale Discussions in Indiana, 2011Mesoscale Discussions in Kentucky, 2011Mesoscale Discussions in Tennessee, 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.