Alert archive / Illinois / Tornado Watches in 2026
Tornado Watch 308
The Storm Prediction Center issued this tornado watch at Jun 10, 2026, 7:06 PM CDT for 23 counties in Illinois. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2026, 7:06 PM CDT (00:06 UTC)
- Expired
- Jun 10, 2026, 11:00 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 65 kt
All 23 counties
Bureau County, IL, Cass County, IL, DeKalb County, IL, DeWitt County, IL, Fulton County, IL, Grundy County, IL, Kane County, IL, Kendall County, IL, Knox County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Peoria County, IL, Putnam County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Woodford County, IL
The radar
The Lincoln radar (KILX), 96 km from the middle of the area, began a volume at 00:09 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:20 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Putnam | 55 min |
| Jun 10, 7:20 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle | 70 min |
| Jun 10, 7:24 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Marshall, Peoria, Stark | 66 min |
| Jun 10, 8:07 PM CDT | Flash Flood Warning | ILX | Knox, Peoria, Stark | 3 hr |
| Jun 10, 8:37 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Marshall, Tazewell, Woodford | 38 min |
| Jun 10, 8:53 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 52 min |
| Jun 10, 9:14 PM CDT | Flash Flood Warning | ILX | Fulton, Knox, Marshall, Peoria, Stark, Woodford | 5 hr |
| Jun 10, 10:00 PM CDT | Flash Flood Warning | ILX | Fulton, Mason, Peoria, Tazewell | 4 hr |
| Jun 10, 10:36 PM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 24 min |
| Jun 10, 10:46 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell | 44 min |
| Jun 10, 10:58 PM CDT | Tornado Warning | ILX | Logan, Macon, Menard, Sangamon | 36 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 00:00Z, 0.1 hours before the alert went out and 107 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
- 1324 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1228 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 321 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:55 PM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Ford, Fulton, Grundy and 14 more | 95 min |
| Jun 10, 8:24 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Clark, Coles, Cumberland and 19 more | 6 hr |
| Jun 10, 9:22 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Fulton, Hancock, McDonough, Schuyler | 83 min |
| Jun 11, 12:00 AM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Crawford, Cumberland and 14 more | 90 min |
| Jun 11, 7:31 AM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Carroll, Fulton, Hancock and 15 more | 7 hr |
| Jun 11, 9:53 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, Fulton, Hancock and 20 more | 97 min |
| Jun 11, 12:22 PM CDT | Mesoscale Discussion | SPC | Bureau, Cass, Fulton, Grundy, Kendall, Knox and 12 more | 83 min |
| Jun 11, 1:08 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson | 3 hr |
| Jun 11, 1:57 PM CDT | Tornado Watch | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 45 more | 7 hr |
| Jun 11, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 1 more | 8 hr |
| Jun 11, 3:07 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 7 more | 113 min |
| Jun 11, 4:11 PM CDT | Mesoscale Discussion | SPC | Fulton, Hancock, Henderson, Henry, Knox, McDonough and 3 more | 94 min |
| Jun 11, 5:13 PM CDT | Mesoscale Discussion | SPC | Grundy, Kankakee, LaSalle, Marshall, Will | 62 min |
| Jun 11, 6:14 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Cass, Cook, DeKalb, DeWitt and 27 more | 91 min |
| Jun 11, 6:38 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Coles, DeWitt, Douglas, Edgar and 6 more | 97 min |
Nearby
Tornado Watches in Illinois, 2026Every tornado watch in 2026
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.