Alert archive / Missouri / Mesoscale Discussions in 2020
Mesoscale Discussion 250
The Storm Prediction Center issued this mesoscale discussion at Mar 28, 2020, 1:17 PM CDT for 4 states. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2020, 1:17 PM CDT (18:17 UTC)
- Expired
- Mar 28, 2020, 2:45 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
All 89 counties
Clay County, AR, Randolph County, AR, Alexander County, IL, Bond County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Crawford County, IL, Cumberland County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Jersey County, IL, Johnson County, IL, Lawrence County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Massac County, IL, Monroe County, IL, Montgomery County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Saline County, IL, Shelby County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Ballard County, KY, Carlisle County, KY, Fulton County, KY, Hickman County, KY, Livingston County, KY, McCracken County, KY, Bollinger County, MO, Butler County, MO, Camden County, MO, Cape Girardeau County, MO, Carter County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Laclede County, MO, Lincoln County, MO, Madison County, MO, Maries County, MO, Miller County, MO, Mississippi County, MO, Montgomery County, MO, New Madrid County, MO, Oregon County, MO, Osage County, MO, Perry County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wayne County, MO, Wright County, MO
The radar
The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 18:16 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.3 hours before the alert went out and 271 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
- 638 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 12:14 PM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 42 more | 2 hr |
| Mar 28, 2:10 PM CDT | Tornado Watch | SPC | Arkansas, Baxter, Bradley, Calhoun, Clark, Clay and 42 more | 5 hr |
| Mar 28, 2:56 PM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Clay, Cleburne, Cleveland and 34 more | 94 min |
| Mar 28, 4:59 PM CDT | Mesoscale Discussion | SPC | Crittenden, Lee, Mississippi, Phillips, St. Francis | 61 min |
| Mar 28, 6:34 PM CDT | Tornado Watch | SPC | Ashley, Chicot, Crittenden, Cross, Lee, Mississippi and 2 more | 7 hr |
| Mar 27, 8:02 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Hamilton, Jackson, Jefferson, Lawrence and 10 more | 88 min |
| Mar 27, 8:33 PM CDT | Mesoscale Discussion | SPC | Calhoun | 87 min |
| Mar 27, 10:16 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Effingham, Fayette, Greene and 9 more | 6 hr |
| Mar 27, 11:46 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Fayette, Greene, Jersey and 8 more | 89 min |
| Mar 28, 1:34 AM CDT | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Whiteside | 56 min |
| Mar 28, 10:18 AM CDT | Mesoscale Discussion | SPC | Champaign, Christian, DeWitt, Douglas, Ford, Iroquois and 8 more | 2 hr |
| Mar 28, 1:33 PM CDT | Mesoscale Discussion | SPC | Adams, Hancock, Henderson | 117 min |
| Mar 28, 2:45 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Calhoun, Cass, Champaign and 44 more | 6 hr |
| Mar 28, 3:53 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clark, Clay, Clinton, Crawford and 30 more | 5 hr |
| Mar 28, 5:21 PM CDT | Mesoscale Discussion | SPC | Brown, Fulton, Hancock, Henderson, Henry, Knox and 7 more | 84 min |
| Mar 28, 6:42 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson | 93 min |
| Mar 28, 7:05 AM CDT | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Boone, Camden and 27 more | 85 min |
Nearby
Mesoscale Discussions in Missouri, 2020Mesoscale Discussions in Illinois, 2020Mesoscale Discussions in Kentucky, 2020Every mesoscale discussion 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.