Alert archive / Indiana / Mesoscale Discussions in 2005
Mesoscale Discussion 2023
The Storm Prediction Center issued this mesoscale discussion at Aug 18, 2005, 9:53 PM CDT for 24 counties in Illinois; 39 counties in Indiana. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Aug 18, 2005, 9:53 PM CDT (02:53 UTC)
- Expired
- Aug 18, 2005, 11:00 PM CDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 63 counties
Champaign County, IL, Christian County, IL, Clark County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Iroquois County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Sangamon County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL, Bartholomew County, IN, Benton County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN
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, 2.9 hours before the alert went out and 106 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
- 2018 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1291 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 212 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.2
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 |
|---|---|---|---|---|
| Aug 18, 8:00 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Greene, Hancock and 9 more | 2 hr |
| Aug 18, 9:28 PM CDT | Mesoscale Discussion | SPC | Cook, Lake | 92 min |
| Aug 18, 10:25 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Clark, Coles, Crawford and 24 more | 8 hr |
| Aug 18, 11:15 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, McDonough, Pike | 60 min |
| Aug 19, 4:24 AM CDT | Mesoscale Discussion | SPC | Crawford | 66 min |
| Aug 19, 12:49 PM CDT | Mesoscale Discussion | SPC | Crawford, Lawrence, Wabash | 86 min |
| Aug 19, 4:09 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 23 more | 2 hr |
| Aug 19, 12:52 AM CDT | Mesoscale Discussion | SPC | Bartholomew, Boone, Brown, Dearborn, Decatur, Delaware and 25 more | 83 min |
Nearby
Mesoscale Discussions in Indiana, 2005Mesoscale Discussions in Illinois, 2005Every mesoscale discussion in 2005
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.