Alert archive / Missouri / Mesoscale Discussions in 2020

Mesoscale Discussion 235

March 27, 20206 counties in Illinois; 7 counties in Kansas; 27 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2020, 1:20 AM CDT for 6 counties in Illinois; 7 counties in Kansas; 27 counties in Missouri. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Mar 27, 2020, 1:20 AM CDT (06:20 UTC)
Expired
Mar 27, 2020, 2:45 AM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 40 counties

Bond County, IL, Calhoun County, IL, Jersey County, IL, Madison County, IL, Monroe County, IL, Saint Clair County, IL, Anderson County, KS, Douglas County, KS, Franklin County, KS, Johnson County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Audrain County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Cass County, MO, City of Saint Louis, MO, Cole County, MO, Cooper County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Lincoln County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Warren County, MO

The radar

The Pleasant Hill radar (KEAX), 119 km from the middle of the area, began a volume at 06:18 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, 6.3 hours before the alert went out and 228 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 2020-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 585 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, Springfield, MO at 00:00Z on 2020-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.1939587897117Sfc1 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
585 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1868 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.4

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 26, 9:51 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin, Madison, Monroe and 5 more84 min
Mar 26, 10:27 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more7 hr
Mar 27, 3:43 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Edwards, Effingham and 10 more92 min
Mar 27, 5:15 PM CDTMesoscale DiscussionSPCMonroe, Randolph90 min
Mar 27, 5:46 PM CDTSevere Thunderstorm WatchSPCRandolph3 hr
Mar 27, 1:00 PM CDTMesoscale DiscussionSPCChautauqua, Cowley, Elk, Labette, Montgomery, Neosho and 1 more2 hr
Mar 27, 3:45 PM CDTMesoscale DiscussionSPCCherokee, Crawford, Labette2 hr
Mar 27, 4:06 PM CDTSevere Thunderstorm WatchSPCBarry, Camden, Christian, Dade, Dallas, Dent and 19 more5 hr

Nearby

Mesoscale Discussions in Missouri, 2020Mesoscale Discussions in Kansas, 2020Mesoscale Discussions in Illinois, 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.