Alert archive / Missouri / Mesoscale Discussions in 2018
Mesoscale Discussion 556
The Storm Prediction Center issued this mesoscale discussion at May 28, 2018, 2:31 PM CDT for 32 counties in Iowa; 44 counties in Missouri. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 28, 2018, 2:31 PM CDT (19:31 UTC)
- Expired
- May 28, 2018, 5:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 76 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Andrew County, MO, Benton County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Dallas County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Pulaski County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Sullivan County, MO, Worth County, MO
The radar
The Pleasant Hill radar (KEAX), 138 km from the middle of the area, began a volume at 19:33 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
Topeka, KS (KFOE), launched 12:00Z, 7.5 hours before the alert went out and 211 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
- 502 J/kg
- Mixed-layer CIN
- -222 J/kg
- Mixed-layer LCL
- 1665 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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Mesoscale Discussions in Missouri, 2018Mesoscale Discussions in Iowa, 2018Every mesoscale discussion in 2018
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.