Alert archive / Illinois / Severe Thunderstorm Watches in 2020
Severe Thunderstorm Watch 192
The Storm Prediction Center issued this severe thunderstorm watch at May 17, 2020, 4:18 PM CDT for 31 counties in Illinois; 19 counties in Indiana; Henderson County, Union County, Kentucky. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 17, 2020, 4:18 PM CDT (21:18 UTC)
- Expired
- May 17, 2020, 9:16 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 52 counties
Champaign County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jasper County, IL, Johnson County, IL, Lawrence County, IL, Macon County, IL, McLean County, IL, Moultrie County, IL, Piatt County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Shelby County, IL, Vermilion County, IL, Wabash 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, Sullivan County, IN, Tippecanoe County, IN, Vanderburgh County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Warrick County, IN, Henderson County, KY, Union County, KY
The radar
The Evansville,IN radar (KVWX), 115 km from the middle of the area, began a volume at 21:19 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
- 20%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 40%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 4:30 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wayne, White | 34 min |
| May 17, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 46 min |
| May 17, 5:39 PM CDT | Severe Thunderstorm Warning | IND | Sullivan | 36 min |
| May 17, 6:02 PM CDT | Tornado Warning | ILX | Lawrence | 28 min |
| May 17, 6:11 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence | 19 min |
| May 17, 6:16 PM CDT | Severe Thunderstorm Warning | IND | Knox, Sullivan | 29 min |
| May 17, 6:21 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 16 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 1:44 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 45 more | 2 hr |
| May 17, 6:29 PM CDT | Mesoscale Discussion | SPC | Gallatin, Lawrence, Wabash | 91 min |
Nearby
Severe Thunderstorm Watches in Illinois, 2020Severe Thunderstorm Watches in Indiana, 2020Severe Thunderstorm Watches in Kentucky, 2020Every severe thunderstorm watch in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.