Alert archive / Missouri / Mesoscale Discussions in 2020

Mesoscale Discussion 164

March 11, 20204 states

The Storm Prediction Center issued this mesoscale discussion at Mar 11, 2020, 4:27 AM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 11, 2020, 4:27 AM CDT (09:27 UTC)
Expired
Mar 11, 2020, 6:30 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 38 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Izard County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Searcy County, AR, Stone County, AR, Washington County, AR, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Ozark County, MO, Polk County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Craig County, OK, Delaware County, OK, Ottawa County, OK

The radar

The Springfield radar (KSGF), 46 km from the middle of the area, began a volume at 09:28 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

Springfield, MO (KSGF), launched 00:00Z, 9.5 hours before the alert went out and 13 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, Springfield, MO at 00:00Z on 2020-03-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 00:00Z on 2020-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1734 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
174 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.

IssuedProductOfficeCountiesLasted
Mar 11, 9:54 AM CDTMesoscale DiscussionSPCArkansas, Cleveland, Cross, Desha, Drew, Faulkner and 14 more2 hr
Mar 11, 2:02 AM CDTMesoscale DiscussionSPCAllen, Barton, Bourbon, Butler, Chase, Chautauqua and 18 more118 min

Nearby

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