Alert archive / Missouri / Mesoscale Discussions in 2022
Mesoscale Discussion 802
The Storm Prediction Center issued this mesoscale discussion at May 17, 2022, 4:18 PM CDT for Decatur County, Ringgold County, Taylor County, Iowa; 4 counties in Kansas; 33 counties in Missouri. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- May 17, 2022, 4:18 PM CDT (21:18 UTC)
- Expired
- May 17, 2022, 5:45 PM CDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 40 counties
Decatur County, IA, Ringgold County, IA, Taylor County, IA, Atchison County, KS, Doniphan County, KS, Leavenworth County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Audrain County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Howard County, MO, Jackson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Monroe County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO
The radar
The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 21:20 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
Omaha, NE (KOAX), launched 12:00Z, 9.3 hours before the alert went out and 266 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
- 1731 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 119 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 |
|---|---|---|---|---|
| May 17, 8:56 AM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Woodbury | 2 hr |
| May 17, 1:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Crawford, Fremont and 12 more | 2 hr |
| May 17, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Decatur, Ringgold, Wayne | 4 hr |
| May 17, 6:12 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Van Buren, Wayne | 93 min |
| May 17, 5:13 PM CDT | Mesoscale Discussion | SPC | Ellis, Graham, Jewell, Mitchell, Ness, Norton and 8 more | 3 hr |
| May 17, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Brown, Clay, Cloud, Edwards, Ellis and 34 more | 6 hr |
Nearby
Mesoscale Discussions in Missouri, 2022Mesoscale Discussions in Kansas, 2022Mesoscale Discussions in Iowa, 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.