Alert archive / Missouri / Mesoscale Discussions in 2012

Mesoscale Discussion 1429

July 7, 201224 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2012, 2:05 PM CDT for 24 counties in Missouri. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jul 7, 2012, 2:05 PM CDT (19:05 UTC)
Expired
Jul 7, 2012, 3:30 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 24 counties

Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Laclede County, MO, Lawrence County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Pettis County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 112 km from the middle of the area, began a volume at 19:07 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 12:00Z, 7.1 hours before the alert went out and 160 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 12:00Z on 2012-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1058 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 12:00Z on 2012-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.1939Sfc1 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
1058 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
2009 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

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Nearby

Mesoscale Discussions in Missouri, 2012Every 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.