Alert archive / Illinois / Mesoscale Discussions in 2022
Mesoscale Discussion 355
The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2022, 12:41 PM CDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2022, 12:41 PM CDT (17:41 UTC)
- Expired
- Mar 30, 2022, 2:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch likely
- Chance of a watch
- 80%
All 59 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Daviess County, IN, Dubois County, IN, Gibson County, IN, Knox County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 54 km from the middle of the area, began a volume at 17:44 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
Nashville Metro, TN (KBNA), launched 12:00Z, 5.7 hours before the alert went out and 244 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
- 1225 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 30, 9:03 AM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clinton, Coles, DeWitt and 24 more | 117 min |
| Mar 30, 9:44 AM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Monroe, Perry, Randolph and 1 more | 2 hr |
| Mar 30, 2:44 PM CDT | Tornado Watch | SPC | Alexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 16 more | 6 hr |
| Mar 30, 5:32 PM CDT | Mesoscale Discussion | SPC | Clay, Crawford, Edwards, Franklin, Gallatin, Hamilton and 12 more | 88 min |
| Mar 30, 6:09 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Cumberland, Jasper | 5 hr |
| Mar 29, 7:50 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Cass, Clay, Clinton and 7 more | 85 min |
| Mar 29, 10:25 PM CDT | Mesoscale Discussion | SPC | Barton, Jasper, Newton, Vernon | 95 min |
| Mar 30, 5:30 AM CDT | Tornado Watch | SPC | Christian, Douglas, Howell, Oregon, Ozark, Shannon and 4 more | 8 hr |
| Mar 30, 12:16 PM CDT | Tornado Watch | SPC | Dunklin, Pemiscot | 9 hr |
| Mar 30, 2:16 PM CDT | Mesoscale Discussion | SPC | Dunklin, Pemiscot | 119 min |
Nearby
Mesoscale Discussions in Illinois, 2022Mesoscale Discussions in Kentucky, 2022Mesoscale Discussions in Indiana, 2022Every mesoscale discussion 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.