Alert archive / Indiana / Mesoscale Discussions in 2012
Mesoscale Discussion 1305
The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2012, 9:22 AM CDT for 27 counties in Illinois; 44 counties in Indiana; Darke County, Mercer County, Ohio. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2012, 9:22 AM CDT (14:22 UTC)
- Expired
- Jun 29, 2012, 11:45 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 73 counties
Bureau County, IL, Champaign County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Henry County, IL, Iroquois County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Marshall County, IL, McLean County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Will County, IL, Woodford County, IL, Adams County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, White County, IN, Darke County, OH, Mercer County, OH
The radar
The Chicago radar (KLOT), 122 km from the middle of the area, began a volume at 14:24 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 12:00Z, 2.4 hours before the alert went out and 85 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
- 4040 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1426 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 |
|---|---|---|---|---|
| Jun 29, 10:49 AM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Grundy, Iroquois, Kane, Kankakee and 2 more | 6 hr |
| Jun 29, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Henderson, Henry, Mercer, Putnam, Rock Island and 2 more | 5 hr |
| Jun 28, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Fulton, Jasper, LaPorte, Porter, Pulaski and 2 more | 2 hr |
| Jun 28, 8:26 PM CDT | Mesoscale Discussion | SPC | Fulton, Jasper, Lake, Marshall, Porter, Pulaski and 1 more | 64 min |
| Jun 28, 9:42 PM CDT | Mesoscale Discussion | SPC | Fulton, LaPorte, Marshall, Pulaski, Starke | 63 min |
| Jun 29, 1:01 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Carroll and 48 more | 119 min |
| Jun 29, 2:02 PM CDT | Severe Thunderstorm Watch | SPC | Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more | 5 hr |
| Jun 29, 2:07 PM CDT | Mesoscale Discussion | SPC | Adams, Delaware, Fayette, Franklin, Henry, Jay and 4 more | 53 min |
| Jun 29, 3:22 PM CDT | Mesoscale Discussion | SPC | Bartholomew, Dearborn, Decatur, Fayette, Franklin, Hancock and 11 more | 83 min |
| Jun 28, 7:53 PM CDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more | 97 min |
| Jun 29, 5:03 PM CDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Clermont, Coshocton and 21 more | 87 min |
Nearby
Mesoscale Discussions in Indiana, 2012Mesoscale Discussions in Illinois, 2012Mesoscale Discussions in Ohio, 2012Every mesoscale discussion in 2012
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.