Alert archive / Kansas / Mesoscale Discussions in 2020

Mesoscale Discussion 586

May 14, 20206 counties in Iowa; 17 counties in Kansas; 15 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 14, 2020, 6:01 PM CDT for 6 counties in Iowa; 17 counties in Kansas; 15 counties in Missouri. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: May 14, 2020, 6:01 PM CDT (23:01 UTC)
Expired: May 14, 2020, 8:00 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center

All 38 counties

Appanoose County, IA, Clarke County, IA, Decatur County, IA, Lucas County, IA, Ringgold County, IA, Wayne County, IA, Atchison County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Greenwood County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Lyon County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee County, KS, Woodson County, KS, Wyandotte County, KS, Andrew County, MO, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Putnam County, MO, Worth County, MO

The radar

The Topeka radar (KTWX), 95 km from the middle of the area, began a volume at 23:05 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 (KTOP), launched 12:00Z, 11.0 hours before the alert went out and 52 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 741 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 626 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 11:48 PM CDT	Mesoscale Discussion	SPC	Adams, Decatur, Fremont, Mills, Montgomery, Page and 2 more	2 hr
May 14, 3:55 PM CDT	Mesoscale Discussion	SPC	Appanoose, Clarke, Davis, Decatur, Jefferson, Lucas and 6 more	95 min
May 14, 4:24 PM CDT	Severe Thunderstorm Watch	SPC	Appanoose, Clarke, Dallas, Davis, Decatur, Jasper and 13 more	9 hr
May 14, 5:19 PM CDT	Mesoscale Discussion	SPC	Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 3 more	116 min
May 14, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more	8 hr
May 14, 1:41 PM CDT	Mesoscale Discussion	SPC	Barry, Barton, Bates, Benton, Camden, Cedar and 29 more	2 hr

Nearby

Mesoscale Discussions in Kansas, 2020 Mesoscale Discussions in Missouri, 2020 Mesoscale Discussions in Iowa, 2020 Every 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.