Alert archive / Kansas / Mesoscale Discussions in 2023

Mesoscale Discussion 902

May 30, 202319 counties in Kansas; Buchanan County, Missouri

The Storm Prediction Center issued this mesoscale discussion at May 30, 2023, 5:20 PM CDT for 19 counties in Kansas; Buchanan County, Missouri. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued: May 30, 2023, 5:20 PM CDT (22:20 UTC)
Expired: May 30, 2023, 7:15 PM CDT
In force: 115 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

Counties Atchison County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Greenwood County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Leavenworth County, KS, Lyon County, KS, Marion County, KS, Osage County, KS, Sedgwick County, KS, Shawnee County, KS, Wabaunsee County, KS, Buchanan County, MO

The radar

The Topeka radar (KTWX), 45 km from the middle of the area, began a volume at 22:24 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, 10.3 hours before the alert went out and 80 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: 297 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 30, 2:12 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Jackson, Marshall, Nemaha and 1 more	2 hr
May 30, 4:34 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Graham, Rawlins, Sheridan, Sherman and 1 more	86 min
May 30, 4:56 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more	7 hr
May 30, 5:01 PM CDT	Mesoscale Discussion	SPC	Grant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more	119 min
May 30, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	Edwards, Ellis, Finney, Ford, Grant, Gray and 16 more	6 hr

Nearby

Mesoscale Discussions in Kansas, 2023 Mesoscale Discussions in Missouri, 2023 Every 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.