Alert archive / Illinois / Mesoscale Discussions in 2015
Mesoscale Discussion 1441
The Storm Prediction Center issued this mesoscale discussion at Jul 16, 2015, 7:58 PM CDT for 4 states. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jul 16, 2015, 7:58 PM CDT (00:58 UTC)
- Expired
- Jul 16, 2015, 9:30 PM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 68 counties
Des Moines County, IA, Henry County, IA, Lee County, IA, Louisa County, IA, Van Buren County, IA, Adams County, IL, Brown County, IL, Bureau County, IL, Cass County, IL, Champaign County, IL, DeWitt County, IL, Douglas County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Iroquois County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, LaSalle County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Morgan County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Putnam County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Warren County, IL, Will County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Adair County, MO, Audrain County, MO, Chariton County, MO, Clark County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Macon County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Randolph County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO
The radar
The Lincoln radar (KILX), 134 km from the middle of the area, began a volume at 01:02 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
Davenport, (KDVN), launched 00:00Z, 1.0 hours before the alert went out and 151 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
- 883 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 796 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.0
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 |
|---|---|---|---|---|
| Jul 16, 9:55 PM CDT | Mesoscale Discussion | SPC | Brown, Cass, Champaign, Christian, Coles, Cumberland and 25 more | 110 min |
| Jul 16, 11:04 PM CDT | Mesoscale Discussion | SPC | DeWitt, Ford, Iroquois, Livingston, Logan, McLean and 2 more | 26 min |
| Jul 17, 2:27 PM CDT | Mesoscale Discussion | SPC | Bartholomew, Blackford, Boone, Brown, Carroll, Clark and 43 more | 63 min |
| Jul 17, 5:54 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Benton, Blackford, Boone and 68 more | 3 hr |
Nearby
Mesoscale Discussions in Illinois, 2015Mesoscale Discussions in Missouri, 2015Mesoscale Discussions in Indiana, 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.