Alert archive / Indiana / Mesoscale Discussions in 2015
Mesoscale Discussion 269
The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2015, 10:56 PM CDT for 4 states. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2015, 10:56 PM CDT (03:56 UTC)
- Expired
- Apr 10, 2015, 12:30 AM CDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
All 100 counties
Crawford County, IL, Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Wabash County, IL, White County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware 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, Knox County, IN, Lawrence County, IN, Madison 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, Posey County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Sullivan County, IN, Switzerland County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Ballard County, KY, Boone County, KY, Breckinridge County, KY, Caldwell County, KY, Campbell County, KY, Carroll County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Gallatin County, KY, Hancock County, KY, Henderson County, KY, Henry County, KY, Hopkins County, KY, Jefferson County, KY, Kenton County, KY, Livingston County, KY, Lyon County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Oldham County, KY, Trimble County, KY, Union County, KY, Webster County, KY, Auglaize County, OH, Butler County, OH, Darke County, OH, Hamilton County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH, Warren County, OH
The radar
The Evansville,IN radar (KVWX), 77 km from the middle of the area, began a volume at 04:00 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.9 hours before the alert went out and 233 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
- 1160 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1435 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 356 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 15.8
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 |
|---|---|---|---|---|
| Apr 9, 7:09 PM CDT | Mesoscale Discussion | SPC | Boone, McHenry, Winnebago | 96 min |
| Apr 9, 8:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clark, Clay, Clinton, Coles and 36 more | 89 min |
| Apr 9, 8:27 PM CDT | Mesoscale Discussion | SPC | Elkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble and 5 more | 93 min |
| Apr 9, 8:55 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Benton, Cass, DeKalb, Elkhart, Fulton and 20 more | 5 hr |
| Apr 10, 12:37 AM CDT | Tornado Watch | SPC | Bartholomew, Clark, Crawford, Dearborn, Decatur, Dubois and 19 more | 5 hr |
| Apr 10, 2:32 AM CDT | Mesoscale Discussion | SPC | Bath, Bell, Bourbon, Boyd, Breathitt, Carter and 44 more | 58 min |
| Apr 10, 3:09 AM CDT | Severe Thunderstorm Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 5 hr |
| Apr 10, 5:16 AM CDT | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 17 more | 59 min |
| Apr 9, 7:02 PM CDT | Mesoscale Discussion | SPC | Athens, Fairfield, Fayette, Gallia, Hocking, Jackson and 8 more | 118 min |
| Apr 10, 1:54 AM CDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Williams | 66 min |
Nearby
Mesoscale Discussions in Indiana, 2015Mesoscale Discussions in Kentucky, 2015Mesoscale Discussions in Illinois, 2015Every mesoscale discussion in 2015
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.