Alert archive / Indiana / Mesoscale Discussions in 2010
Mesoscale Discussion 910
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2010, 3:49 PM CDT for 35 counties in Illinois; 45 counties in Indiana; Saint Louis County, City of Saint Louis, Missouri. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2010, 3:49 PM CDT (20:49 UTC)
- Expired
- Jun 12, 2010, 5:15 PM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 82 counties
Bond County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Iroquois County, IL, Jasper County, IL, Jefferson County, IL, Lawrence County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, McLean County, IL, Montgomery County, IL, Moultrie County, IL, Piatt County, IL, Richland County, IL, Saint Clair County, IL, Shelby County, IL, Vermilion County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, Bartholomew County, IN, Benton County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Fountain County, IN, Fulton County, IN, Gibson County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Howard County, IN, Jasper County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Owen County, IN, Parke County, IN, Pike County, IN, Pulaski County, IN, Putnam County, IN, Shelby County, IN, Starke County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, White County, IN, City of Saint Louis, MO, Saint Louis County, MO
The radar
The Indianapolis radar (KIND), 129 km from the middle of the area, began a volume at 20:49 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, 8.8 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
- 2783 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 549 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
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 12, 12:24 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 44 more | 96 min |
| Jun 12, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Coles and 34 more | 7 hr |
| Jun 12, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clark, Clay, Clinton, Crawford and 15 more | 5 hr |
| Jun 12, 4:47 PM CDT | Mesoscale Discussion | SPC | Adams, Bartholomew, Blackford, Brown, Clark, Clay and 45 more | 88 min |
| Jun 12, 5:27 AM CDT | Mesoscale Discussion | SPC | Atchison | 63 min |
Nearby
Mesoscale Discussions in Indiana, 2010Mesoscale Discussions in Illinois, 2010Mesoscale Discussions in Missouri, 2010Every mesoscale discussion in 2010
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.