Alert archive / Missouri / Mesoscale Discussions in 2023
Mesoscale Discussion 201
The Storm Prediction Center issued this mesoscale discussion at Feb 27, 2023, 1:43 AM CST for 14 counties in Illinois; 6 counties in Iowa; 86 counties in Missouri. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Feb 27, 2023, 1:43 AM CST (07:43 UTC)
- Expired
- Feb 27, 2023, 2:45 AM CST
- In force
- 62 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
All 106 counties
Appanoose County, IA, Davis County, IA, Jefferson County, IA, Van Buren County, IA, Wapello County, IA, Wayne County, IA, Adams County, IL, Alexander County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Hancock County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Scott County, IL, Adair County, MO, Audrain County, MO, Benton County, MO, Bollinger County, MO, Boone County, MO, Butler County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Cape Girardeau County, MO, Carroll County, MO, Carter County, MO, Chariton County, MO, Christian County, MO, City of Saint Louis, MO, Clark County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dallas County, MO, Daviess County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Madison County, MO, Maries County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Oregon County, MO, Osage County, MO, Ozark County, MO, Perry County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Reynolds County, MO, Ripley County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Scott County, MO, Shannon County, MO, Shelby County, MO, St. Clair County, MO, Stoddard County, MO, Sullivan County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO
The radar
The St Louis radar (KLSX), 141 km from the middle of the area, began a volume at 07:46 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 7.7 hours before the alert went out and 215 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
- 12 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 468 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 395 m²/s²
- 0-3 km storm-relative helicity
- 323 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 |
|---|---|---|---|---|
| Feb 27, 8:46 AM CST | Mesoscale Discussion | SPC | Champaign, Ford, Iroquois, Piatt, Vermilion | 89 min |
| Feb 27, 9:44 AM CST | Mesoscale Discussion | SPC | Clark, Douglas, Edgar, Vermilion | 61 min |
| Feb 27, 10:06 AM CST | Tornado Watch | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 2 more | 5 hr |
| Feb 26, 10:58 PM CST | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Cass, Cedar and 12 more | 2 hr |
Nearby
Mesoscale Discussions in Missouri, 2023Mesoscale Discussions in Illinois, 2023Mesoscale Discussions in Iowa, 2023Every mesoscale discussion in 2023
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.