Alert archive / Missouri / Mesoscale Discussions in 2026

Mesoscale Discussion 415

April 13, 20268 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2026, 9:46 PM CDT for 8 counties in Missouri. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Apr 13, 2026, 9:46 PM CDT (02:46 UTC)
Expired
Apr 13, 2026, 11:15 PM CDT
In force
89 min
Issued by
the Storm Prediction Center
Concerning
Tornado watch 105

Counties Cooper County, MO, Howard County, MO, Johnson County, MO, Lafayette County, MO, Moniteau County, MO, Morgan County, MO, Pettis County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 98 km from the middle of the area, began a volume at 02:49 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 00:00Z, 2.8 hours before the alert went out and 217 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2026-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2034 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2026-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2034 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1542 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.6
Supercell composite
10.2

Open this sounding in Storm Lab

The text

As transmitted.

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Nearby

Mesoscale Discussions in Missouri, 2026Every mesoscale discussion in 2026

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.