Alert archive / Missouri / Severe Thunderstorm Watches in 2020
Severe Thunderstorm Watch 63
The Storm Prediction Center issued this severe thunderstorm watch at Mar 26, 2020, 10:27 PM CDT for 14 counties in Illinois; 15 counties in Kansas; 38 counties in Missouri. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 26, 2020, 10:27 PM CDT (03:27 UTC)
- Expired
- Mar 27, 2020, 5:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 50 kt
All 67 counties
Bond County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Saint Clair County, IL, Washington County, IL, Anderson County, KS, Coffey County, KS, Douglas County, KS, Franklin County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Morris County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee 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, City of Saint Louis, MO, Clay County, MO, Cole County, MO, Cooper County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Jefferson County, MO, Johnson County, MO, Lafayette County, MO, Lincoln County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Platte County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Warren County, MO
The radar
The Pleasant Hill radar (KEAX), 82 km from the middle of the area, began a volume at 03:29 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
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 11:12 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Johnson | 33 min |
| Mar 26, 11:19 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Geary, Morris | 41 min |
| Mar 26, 11:36 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Pettis, Saline | 24 min |
| Mar 26, 11:38 PM CDT | Severe Thunderstorm Warning | TOP | Morris, Wabaunsee | 38 min |
| Mar 26, 11:57 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Pettis | 33 min |
| Mar 27, 12:21 AM CDT | Severe Thunderstorm Warning | EAX | Cooper, Pettis | 39 min |
| Mar 27, 12:43 AM CDT | Severe Thunderstorm Warning | TOP | Douglas | 28 min |
| Mar 27, 12:46 AM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Moniteau | 59 min |
| Mar 27, 12:53 AM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson, Lafayette | 37 min |
| Mar 27, 1:17 AM CDT | Severe Thunderstorm Warning | EAX | Johnson, Miami | 28 min |
| Mar 27, 1:41 AM CDT | Severe Thunderstorm Warning | EAX | Miami | 34 min |
| Mar 27, 1:41 AM CDT | Severe Thunderstorm Warning | LSX | Callaway, Lincoln, Montgomery, Warren | 64 min |
| Mar 27, 2:02 AM CDT | Severe Thunderstorm Warning | EAX | Cass, Johnson | 28 min |
| Mar 27, 2:22 AM CDT | Severe Thunderstorm Warning | EAX | Johnson, Pettis | 38 min |
| Mar 27, 2:51 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 54 min |
| Mar 27, 2:52 AM CDT | Severe Thunderstorm Warning | EAX | Cooper, Pettis | 31 min |
| Mar 27, 2:54 AM CDT | Severe Thunderstorm Warning | EAX | Jackson, Lafayette, Ray | 38 min |
| Mar 27, 3:31 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Marion | 59 min |
| Mar 27, 3:44 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison, Marion | 44 min |
| Mar 27, 4:11 AM CDT | Flash Flood Warning | LSX | Fayette | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 3.5 hours before the alert went out and 197 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
- 910 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 297 m²/s²
- 0-3 km storm-relative helicity
- 461 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 |
|---|---|---|---|---|
| Mar 26, 9:51 PM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 5 more | 84 min |
| Mar 27, 1:20 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Jersey, Madison, Monroe, Saint Clair | 85 min |
| Mar 27, 3:43 AM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 10 more | 92 min |
| Mar 27, 5:15 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph | 90 min |
| Mar 27, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | Randolph | 3 hr |
| Mar 27, 1:00 PM CDT | Mesoscale Discussion | SPC | Chautauqua, Cowley, Elk, Labette, Montgomery, Neosho and 1 more | 2 hr |
| Mar 27, 3:45 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Labette | 2 hr |
| Mar 27, 4:06 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Camden, Christian, Dade, Dallas, Dent and 19 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2020Severe Thunderstorm Watches in Kansas, 2020Severe Thunderstorm Watches in Illinois, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.