Alert archive / Missouri / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 112
The Storm Prediction Center issued this severe thunderstorm watch at Apr 9, 2001, 6:45 PM CDT for 10 counties in Illinois; 6 counties in Kansas; 34 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2001, 6:45 PM CDT (23:45 UTC)
- Expired
- Apr 10, 2001, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Adams County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Hancock County, IL, Jersey County, IL, McDonough County, IL, Pike County, IL, Schuyler County, IL, Scott County, IL, Bourbon County, KS, Crawford County, KS, Johnson County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Audrain County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Cole County, MO, Cooper County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Macon County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Pettis County, MO, Pike County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Shelby County, MO, St. Clair County, MO, Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 106 km from the middle of the area, began a volume at 23:49 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.
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 7:03 PM CDT | Severe Thunderstorm Warning | EAX | Howard | 42 min |
| Apr 9, 7:12 PM CDT | Severe Thunderstorm Warning | EAX | Johnson | 48 min |
| Apr 9, 7:30 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 45 min |
| Apr 9, 7:34 PM CDT | Severe Thunderstorm Warning | EAX | Lafayette, Saline | 56 min |
| Apr 9, 7:41 PM CDT | Severe Thunderstorm Warning | SGF | Benton | 49 min |
| Apr 9, 7:42 PM CDT | Severe Thunderstorm Warning | EAX | Randolph | 48 min |
| Apr 9, 8:05 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 40 min |
| Apr 9, 8:14 PM CDT | Severe Thunderstorm Warning | SGF | Morgan | 46 min |
| Apr 9, 8:24 PM CDT | Severe Thunderstorm Warning | EAX | Randolph | 51 min |
| Apr 9, 8:26 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 49 min |
| Apr 9, 8:27 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 63 min |
| Apr 9, 8:35 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 40 min |
| Apr 9, 8:46 PM CDT | Severe Thunderstorm Warning | EAX | Bates | 59 min |
| Apr 9, 9:29 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 46 min |
| Apr 9, 9:31 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 44 min |
| Apr 9, 9:41 PM CDT | Severe Thunderstorm Warning | EAX | Henry | 49 min |
| Apr 9, 9:47 PM CDT | Severe Thunderstorm Warning | EAX | Bates | 43 min |
| Apr 9, 9:59 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 46 min |
| Apr 9, 10:01 PM CDT | Severe Thunderstorm Warning | SGF | Benton | 44 min |
| Apr 9, 10:15 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 60 min |
| Apr 9, 10:19 PM CDT | Severe Thunderstorm Warning | EAX | Pettis | 41 min |
| Apr 9, 10:46 PM CDT | Severe Thunderstorm Warning | EAX | Johnson | 59 min |
| Apr 9, 11:19 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 41 min |
| Apr 9, 11:34 PM CDT | Severe Thunderstorm Warning | EAX | Pettis | 41 min |
| Apr 9, 11:38 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 37 min |
| Apr 9, 11:59 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette | 61 min |
| Apr 10, 12:32 AM CDT | Severe Thunderstorm Warning | EAX | Saline | 58 min |
| Apr 10, 12:51 AM CDT | Severe Thunderstorm Warning | EAX | Cooper | 54 min |
| Apr 10, 12:54 AM CDT | Severe Thunderstorm Warning | EAX | Howard | 66 min |
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 11.8 hours before the alert went out and 219 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
- 96 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 1604 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 7:00 PM CDT | Tornado Watch | SPC | Jo Daviess | 6 hr |
| Apr 9, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, DeWitt, Douglas, Edgar, Ford and 21 more | 6 hr |
| Apr 8, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Cloud, Doniphan, Jackson, Marshall and 5 more | 6 hr |
| Apr 9, 4:15 PM CDT | Tornado Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Coffey, Cowley and 9 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2001Severe Thunderstorm Watches in Illinois, 2001Severe Thunderstorm Watches in Kansas, 2001Every severe thunderstorm watch in 2001
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.