Alert archive / Illinois / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 520
The Storm Prediction Center issued this severe thunderstorm watch at Jun 13, 2008, 1:57 AM CDT for 44 counties in Illinois; 5 counties in Indiana; 13 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2008, 1:57 AM CDT (06:57 UTC)
- Expired
- Jun 13, 2008, 8:24 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 62 counties
Brown County, IL, Bureau County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Cook County, IL, DeKalb County, IL, DeWitt County, IL, DuPage County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Grundy County, IL, Iroquois County, IL, Jersey County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard 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, Will County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Gasconade County, MO, Lincoln County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Warren County, MO
The radar
The Lincoln radar (KILX), 73 km from the middle of the area, began a volume at 06:59 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.
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 1:59 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Marshall, Peoria, Stark, Tazewell and 1 more | 46 min |
| Jun 13, 2:05 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 25 min |
| Jun 13, 4:00 AM CDT | Flash Flood Warning | LSX | Moniteau | 6 hr |
| Jun 13, 5:58 AM CDT | Flash Flood Warning | LSX | Boone, Callaway, Cole, Osage | 5 hr |
| Jun 13, 7:01 AM CDT | Flash Flood Warning | LSX | Monroe | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.0 hours before the alert went out and 98 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
- 1038 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1797 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:48 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more | 6 hr |
| Jun 12, 10:11 PM CDT | Severe Thunderstorm Watch | SPC | Adams | 6 hr |
| Jun 12, 11:15 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more | 90 min |
| Jun 13, 1:36 AM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Cass, Cook and 23 more | 54 min |
| Jun 13, 10:44 AM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 28 more | 2 hr |
| Jun 13, 11:27 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Champaign, Clark, Clay, Clinton, Coles and 28 more | 7 hr |
| Jun 13, 4:58 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 62 min |
| Jun 13, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 6 hr |
| Jun 13, 5:58 AM CDT | Mesoscale Discussion | SPC | Allen, DeKalb, Huntington, Kosciusko, LaGrange, Noble and 2 more | 62 min |
| Jun 13, 11:51 AM CDT | Mesoscale Discussion | SPC | Clark, Dearborn, Floyd, Franklin, Harrison, Jefferson and 5 more | 84 min |
| Jun 13, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Dearborn, Fayette, Floyd, Franklin and 11 more | 7 hr |
| Jun 13, 2:48 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Brown, Clark and 52 more | 117 min |
| Jun 12, 8:18 PM CDT | Mesoscale Discussion | SPC | Adair, Buchanan, Caldwell, Carroll, Cass, Chariton and 29 more | 87 min |
| Jun 12, 11:52 PM CDT | Mesoscale Discussion | SPC | Audrain, Barton, Bates, Benton, Boone, Callaway and 25 more | 113 min |
| Jun 13, 3:06 AM CDT | Mesoscale Discussion | SPC | Barton, Cedar, Dade, Jasper, Polk, St. Clair and 1 more | 84 min |
| Jun 13, 3:48 AM CDT | Severe Thunderstorm Watch | SPC | Barry, Barton, Camden, Cedar, Christian, Dade and 15 more | 6 hr |
| Jun 13, 2:22 PM CDT | Mesoscale Discussion | SPC | Adair, Caldwell, Carroll, Chariton, Clay, Clinton and 11 more | 113 min |
| Jun 13, 3:12 PM CDT | Mesoscale Discussion | SPC | Ozark, Taney | 93 min |
Nearby
Severe Thunderstorm Watches in Illinois, 2008Severe Thunderstorm Watches in Missouri, 2008Severe Thunderstorm Watches in Indiana, 2008Every severe thunderstorm watch in 2008
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.