Alert archive / Missouri / Tornado Watches in 2022
Tornado Watch 121
The Storm Prediction Center issued this tornado watch at Apr 13, 2022, 11:16 AM CDT for 15 counties in Illinois; 26 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 13, 2022, 11:16 AM CDT (16:16 UTC)
- Expired
- Apr 13, 2022, 4:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 65 kt
All 41 counties
Alexander County, IL, Clinton County, IL, Franklin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Marion County, IL, Monroe County, IL, Perry County, IL, Pulaski 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, Crawford County, MO, Dent County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Washington County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 119 km from the middle of the area, began a volume at 16:16 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 60%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 11:28 AM CDT | Severe Thunderstorm Warning | SGF | Howell, Oregon, Ozark, Shannon, Texas | 62 min |
| Apr 13, 12:49 PM CDT | Flash Flood Warning | SGF | Douglas, Howell, Oregon, Ozark, Shannon, Texas and 1 more | 6 hr |
| Apr 13, 1:36 PM CDT | Flash Flood Warning | SGF | Dent, Laclede, Phelps, Pulaski, Texas, Wright | 5 hr |
| Apr 13, 3:05 PM CDT | Severe Thunderstorm Warning | PAH | Mississippi, New Madrid, Stoddard | 40 min |
| Apr 13, 3:08 PM CDT | Tornado Warning | PAH | New Madrid, Stoddard | 31 min |
| Apr 13, 3:26 PM CDT | Tornado Warning | PAH | New Madrid | 19 min |
| Apr 13, 3:38 PM CDT | Tornado Warning | PAH | Mississippi | 16 min |
| Apr 13, 3:49 PM CDT | Severe Thunderstorm Warning | PAH | Mississippi | 56 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
Little Rock, AR (KLZK), launched 12:00Z, 4.3 hours before the alert went out and 299 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
- 141 J/kg
- Mixed-layer CIN
- -450 J/kg
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 627 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 7:38 AM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Pike, Scott | 2 hr |
| Apr 13, 10:49 AM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Johnson, Monroe, Perry and 6 more | 56 min |
| Apr 13, 12:32 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more | 118 min |
| Apr 13, 1:48 PM CDT | Mesoscale Discussion | SPC | Champaign, Cook, DeKalb, DeWitt, DuPage, Ford and 21 more | 87 min |
| Apr 13, 3:35 PM CDT | Tornado Watch | SPC | Hardin, Massac, Pope | 3 hr |
| Apr 12, 9:38 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Gentry, Harrison, Holt, Mercer and 2 more | 2 hr |
| Apr 13, 1:42 PM CDT | Tornado Watch | SPC | Dunklin, Pemiscot | 7 hr |
| Apr 13, 2:42 PM CDT | Mesoscale Discussion | SPC | Dunklin, Pemiscot | 63 min |
Nearby
Tornado Watches in Missouri, 2022Tornado Watches in Illinois, 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.