Alert archive / Missouri / Mesoscale Discussions in 2012

Mesoscale Discussion 1196

June 17, 20125 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2012, 2:54 AM CDT for 5 counties in Missouri. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jun 17, 2012, 2:54 AM CDT (07:54 UTC)
Expired: Jun 17, 2012, 5:30 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

Counties Barton County, MO, Cedar County, MO, Dade County, MO, Polk County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 79 km from the middle of the area, began a volume at 07:53 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, 7.9 hours before the alert went out and 92 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: 809 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1865 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 16, 7:58 PM CDT	Mesoscale Discussion	SPC	Crawford, Franklin, Gasconade, Jefferson, Lincoln, Osage and 5 more	92 min
Jun 16, 8:23 PM CDT	Severe Thunderstorm Watch	SPC	Franklin, Gasconade, Jefferson, Lincoln, Osage, Saint Charles and 3 more	3 hr
Jun 16, 10:30 PM CDT	Mesoscale Discussion	SPC	Franklin, Jefferson, Sainte Genevieve, Saint Francois, Saint Louis, City of Saint Louis	90 min
Jun 16, 11:03 PM CDT	Mesoscale Discussion	SPC	Benton, Camden, Dallas, Dent, Henry, Hickory and 7 more	87 min
Jun 17, 5:34 PM CDT	Mesoscale Discussion	SPC	Adair, Audrain, Boone, Caldwell, Callaway, Carroll and 28 more	86 min

Nearby

Mesoscale Discussions in Missouri, 2012 Every mesoscale discussion in 2012

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.