Alert archive / Illinois / Tornado Watches in 2022
Tornado Watch 164
The Storm Prediction Center issued this tornado watch at Apr 30, 2022, 2:03 PM CDT for 17 counties in Illinois; 14 counties in Missouri. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2022, 2:03 PM CDT (19:03 UTC)
- Expired
- Apr 30, 2022, 10:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 31 counties
Alexander County, IL, Bond County, IL, Clinton County, IL, Fayette County, IL, Franklin County, IL, Jackson County, IL, Jefferson County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Perry County, IL, Randolph County, IL, Saint Clair County, IL, Union County, IL, Washington County, IL, Williamson County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Iron County, MO, Madison County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 121 km from the middle of the area, began a volume at 19:03 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
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 4:08 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 67 min |
| Apr 30, 4:30 PM CDT | Severe Thunderstorm Warning | PAH | Carter | 30 min |
| Apr 30, 4:33 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 57 min |
| Apr 30, 4:39 PM CDT | Tornado Warning | PAH | Carter, Wayne | 36 min |
| Apr 30, 4:42 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 18 min |
| Apr 30, 4:46 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Francois | 44 min |
| Apr 30, 4:57 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 21 min |
| Apr 30, 4:58 PM CDT | Tornado Warning | PAH | Perry | 32 min |
| Apr 30, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 36 min |
| Apr 30, 5:24 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 51 min |
| Apr 30, 6:05 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 25 min |
| Apr 30, 6:13 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 17 min |
| Apr 30, 6:27 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger | 33 min |
| Apr 30, 6:43 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 32 min |
| Apr 30, 7:33 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 27 min |
| Apr 30, 8:03 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 42 min |
| Apr 30, 8:11 PM CDT | Severe Thunderstorm Warning | PAH | Butler, Wayne | 16 min |
| Apr 30, 9:25 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Williamson | 35 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, 7.1 hours before the alert went out and 245 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1090 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 402 m²/s²
- 0-3 km storm-relative helicity
- 383 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 |
|---|---|---|---|---|
| Apr 30, 12:32 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cass, Christian, DeKalb and 33 more | 118 min |
| Apr 30, 1:09 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Franklin, Jackson, Jefferson, Johnson and 9 more | 2 hr |
| Apr 30, 1:46 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, Champaign, Christian, Clark and 49 more | 8 hr |
| Apr 30, 2:43 PM CDT | Mesoscale Discussion | SPC | Rock Island | 92 min |
| Apr 30, 3:20 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Ford and 25 more | 85 min |
| Apr 30, 3:57 PM CDT | Mesoscale Discussion | SPC | Clinton, Madison, Monroe, Perry, Randolph, Saint Clair and 1 more | 63 min |
| Apr 30, 5:27 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 2 hr |
| Apr 30, 6:02 PM CDT | Mesoscale Discussion | SPC | Boone, Champaign, Christian, Coles, Cook, DeKalb and 28 more | 118 min |
| Apr 29, 8:05 PM CDT | Mesoscale Discussion | SPC | Andrew, Buchanan, Caldwell, Carroll, Cass, Clay and 15 more | 55 min |
| Apr 29, 8:34 PM CDT | Severe Thunderstorm Watch | SPC | Andrew, Atchison, Bates, Buchanan, Caldwell, Carroll and 19 more | 4 hr |
| Apr 29, 8:58 PM CDT | Mesoscale Discussion | SPC | Barton, Vernon | 2 hr |
| Apr 29, 10:32 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Barton, Benton, Cedar, Christian, Dade and 12 more | 5 hr |
| Apr 29, 11:34 PM CDT | Mesoscale Discussion | SPC | Caldwell, Carroll, Chariton, Daviess, Grundy, Harrison and 9 more | 86 min |
| Apr 30, 12:48 AM CDT | Mesoscale Discussion | SPC | Barton, Dade, Jasper, Lawrence, McDonald, Newton | 87 min |
| Apr 30, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Dunklin, Pemiscot | 9 hr |
Nearby
Tornado Watches in Illinois, 2022Tornado Watches in Missouri, 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.