Alert archive / Illinois / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 596
The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2005, 12:00 PM CDT for 47 counties in Illinois; 5 counties in Indiana. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2005, 12:00 PM CDT (17:00 UTC)
- Expired
- Jul 4, 2005, 5:52 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 52 counties
Bond County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Cook County, IL, Crawford County, IL, Cumberland County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Jasper County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, LaSalle County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Madison County, IL, Marion County, IL, Marshall County, IL, McLean County, IL, Montgomery County, IL, Moultrie County, IL, Piatt County, IL, Putnam County, IL, Richland County, IL, Saint Clair County, IL, Sangamon County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Washington County, IL, Wayne County, IL, Will County, IL, Woodford County, IL, Benton County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Warren County, IN
The radar
The Lincoln radar (KILX), 70 km from the middle of the area, began a volume at 17:01 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 12:26 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 51 min |
| Jul 4, 12:54 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 51 min |
| Jul 4, 1:05 PM CDT | Severe Thunderstorm Warning | ILX | Christian | 58 min |
| Jul 4, 1:11 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Will | 47 min |
| Jul 4, 2:09 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie, Shelby | 66 min |
| Jul 4, 2:25 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 65 min |
| Jul 4, 2:47 PM CDT | Tornado Warning | LSX | Saint Clair | 32 min |
| Jul 4, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 49 min |
| Jul 4, 3:14 PM CDT | Tornado Warning | LSX | Clinton | 53 min |
| Jul 4, 4:05 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 40 min |
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 12:00Z, 5.0 hours before the alert went out and 43 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
- 149 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1395 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 2:53 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more | 97 min |
| Jul 4, 11:13 AM CDT | Mesoscale Discussion | SPC | Bond, Bureau, Calhoun, Cass, Champaign, Christian and 41 more | 92 min |
| Jul 4, 12:21 PM CDT | Mesoscale Discussion | SPC | Monroe | 84 min |
| Jul 4, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Hamilton, Jackson, Johnson, Perry and 4 more | 6 hr |
| Jul 4, 3:22 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Champaign, Christian, Clark, Clay and 49 more | 83 min |
| Jul 4, 5:41 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 94 min |
| Jul 4, 2:18 PM CDT | Mesoscale Discussion | SPC | Elkhart, LaGrange, Saint Joseph | 87 min |
| Jul 4, 2:50 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Cass, DeKalb, Elkhart, Fulton and 17 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Illinois, 2005Severe Thunderstorm Watches in Indiana, 2005Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.