Alert archive / Illinois / Tornado Watches in 2022
Tornado Watch 357
The Storm Prediction Center issued this tornado watch at Jun 13, 2022, 5:51 PM CDT for 10 counties in Illinois; 4 counties in Indiana. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2022, 5:51 PM CDT (22:51 UTC)
- Expired
- Jun 13, 2022, 8:42 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 65 kt
Counties Boone County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, McHenry County, IL, Will County, IL, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 24 km from the middle of the area, began a volume at 22:55 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
- 60%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
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, 5:54 PM CDT | Tornado Warning | LOT | Cook, Kane | 33 min |
| Jun 13, 6:13 PM CDT | Tornado Warning | LOT | Cook, DuPage | 62 min |
| Jun 13, 6:57 PM CDT | Tornado Warning | LOT | Cook | 48 min |
| Jun 13, 7:28 PM CDT | Tornado Warning | LOT | Lake, Porter | 47 min |
| Jun 13, 8:10 PM CDT | Severe Thunderstorm Warning | LOT | Porter | 20 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, 10.9 hours before the alert went out and 189 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
- 4260 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 18.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 12:29 PM CDT | Mesoscale Discussion | SPC | Edgar, Iroquois, Vermilion | 2 hr |
| Jun 13, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Iroquois, Vermilion | 6 hr |
| Jun 13, 5:38 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 11 more | 2 hr |
| Jun 13, 3:55 PM CDT | Mesoscale Discussion | SPC | Dearborn, Decatur, Fayette, Franklin, Henry, Jefferson and 7 more | 95 min |
| Jun 13, 4:49 PM CDT | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte and 5 more | 116 min |
| Jun 13, 5:21 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 18 more | 6 hr |
Nearby
Tornado Watches in Illinois, 2022Tornado Watches in Indiana, 2022Every tornado watch in 2022
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.