Alert archive / Illinois / Mesoscale Discussions in 2013
Mesoscale Discussion 79
The Storm Prediction Center issued this mesoscale discussion at Jan 29, 2013, 6:08 PM CST for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 29, 2013, 6:08 PM CST (00:08 UTC)
- Expired
- Jan 29, 2013, 8:15 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 94 counties
Alexander County, IL, 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, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Macon County, IL, Marion County, IL, Massac County, IL, Montgomery County, IL, Moultrie County, IL, Perry County, IL, Piatt County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Richland County, IL, Saline County, IL, Shelby County, IL, Union County, IL, Vermilion County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clay County, IN, Daviess County, IN, Fountain County, IN, Gibson County, IN, Greene County, IN, Knox County, IN, Montgomery County, IN, Owen County, IN, Parke County, IN, Pike County, IN, Posey County, IN, Putnam County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
The radar
The Evansville,IN radar (KVWX), 96 km from the middle of the area, began a volume at 00:08 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 00:00Z, 0.1 hours before the alert went out and 187 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
- 160 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 408 m²/s²
- 0-3 km storm-relative helicity
- 431 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 |
|---|---|---|---|---|
| Jan 29, 7:13 PM CST | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 6 hr |
| Jan 29, 9:19 PM CST | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Crawford, Edwards, Franklin and 22 more | 86 min |
| Jan 29, 9:35 PM CST | Tornado Watch | SPC | Clark, Clay, Crawford, Jasper, Lawrence, Richland | 6 hr |
| Jan 29, 11:05 PM CST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 37 more | 85 min |
| Jan 30, 12:45 AM CST | Mesoscale Discussion | SPC | Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more | 60 min |
| Jan 30, 2:33 AM CST | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 15 more | 57 min |
| Jan 29, 9:49 PM CST | Mesoscale Discussion | SPC | Calloway, Fulton | 116 min |
| Jan 30, 3:35 AM CST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bourbon and 57 more | 4 hr |
| Jan 30, 4:51 AM CST | Tornado Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 7 hr |
| Jan 30, 6:38 AM CST | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 21 more | 97 min |
| Jan 29, 8:11 PM CST | Mesoscale Discussion | SPC | Dunklin | 94 min |
| Jan 29, 8:29 PM CST | Mesoscale Discussion | SPC | Atchison | 4 hr |
Nearby
Mesoscale Discussions in Illinois, 2013Mesoscale Discussions in Indiana, 2013Mesoscale Discussions in Kentucky, 2013Every mesoscale discussion in 2013
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.