Alert archive / Illinois / Mesoscale Discussions in 2014
Mesoscale Discussion 463
The Storm Prediction Center issued this mesoscale discussion at Apr 28, 2014, 6:10 PM CDT for 57 counties in Illinois; Gibson County, Posey County, Vanderburgh County, Indiana; 15 counties in Kentucky. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2014, 6:10 PM CDT (23:10 UTC)
- Expired
- Apr 28, 2014, 7:45 PM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 75 counties
Bond County, IL, Bureau County, IL, Christian County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Henry County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Knox County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Marshall County, IL, Mason County, IL, Massac County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Moultrie County, IL, Peoria County, IL, Perry County, IL, Piatt County, IL, Pope County, IL, Pulaski County, IL, Putnam County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Saline County, IL, Sangamon County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Woodford County, IL, Gibson County, IN, Posey County, IN, Vanderburgh County, IN, Ballard County, KY, Caldwell County, KY, Christian County, KY, Crittenden County, KY, Graves County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Trigg County, KY, Union County, KY, Webster County, KY
The radar
The Lincoln radar (KILX), 111 km from the middle of the area, began a volume at 23:13 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
Lincoln, IL (KILX), launched 12:00Z, 11.2 hours before the alert went out and 112 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Apr 27, 7:53 PM CDT | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 6 hr |
| Apr 27, 11:41 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 94 min |
| Apr 28, 1:43 AM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Madison and 8 more | 92 min |
| Apr 28, 12:54 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 16 more | 2 hr |
| Apr 28, 1:11 PM CDT | Tornado Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 39 more | 7 hr |
| Apr 28, 3:13 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 2 hr |
| Apr 28, 3:38 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Bureau, Calhoun, Cass and 42 more | 2 hr |
| Apr 28, 4:30 AM CDT | Mesoscale Discussion | SPC | Clark, Floyd, Harrison, Jefferson, Scott, Switzerland | 90 min |
| Apr 27, 7:29 PM CDT | Mesoscale Discussion | SPC | Carlisle, Fulton, Hickman | 91 min |
| Apr 28, 6:57 AM CDT | Mesoscale Discussion | SPC | Calloway, Christian, Logan, Simpson, Todd, Trigg | 2 hr |
| Apr 28, 12:50 PM CDT | Mesoscale Discussion | SPC | Clinton, McCreary, Wayne | 55 min |
| Apr 28, 1:33 PM CDT | Tornado Watch | SPC | Bell, Clay, Floyd, Harlan, Knott, Knox and 5 more | 5 hr |
| Apr 28, 3:12 PM CDT | Mesoscale Discussion | SPC | Harlan, Letcher, Pike | 63 min |
Nearby
Mesoscale Discussions in Illinois, 2014Mesoscale Discussions in Kentucky, 2014Mesoscale Discussions in Indiana, 2014Every mesoscale discussion in 2014
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.