Alert archive / Missouri / Mesoscale Discussions in 2005

Mesoscale Discussion 1341

June 13, 20054 counties in Arkansas; Jackson County, Illinois; 21 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2005, 10:04 PM CDT for 4 counties in Arkansas; Jackson County, Illinois; 21 counties in Missouri. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2005, 10:04 PM CDT (03:04 UTC)
Expired: Jun 13, 2005, 11:00 PM CDT
In force: 56 min
Issued by: the Storm Prediction Center

All 26 counties

Baxter County, AR, Fulton County, AR, Marion County, AR, Randolph County, AR, Jackson County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Howell County, MO, Iron County, MO, Madison County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Washington County, MO, Wayne County, MO

The radar

The Springfield radar (KSGF), 174 km from the middle of the area, began a volume at 03:06 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, 3.1 hours before the alert went out and 207 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: 2648 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1135 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.3

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 13, 7:35 PM CDT	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 8 more	115 min
Jun 13, 7:18 PM CDT	Mesoscale Discussion	SPC	Bond, Champaign, Clark, Clinton, Coles, Cumberland and 14 more	117 min
Jun 13, 10:29 PM CDT	Mesoscale Discussion	SPC	Boone, Carroll, Henry, Jo Daviess, McHenry, Mercer and 5 more	61 min

Nearby

Mesoscale Discussions in Missouri, 2005 Mesoscale Discussions in Arkansas, 2005 Mesoscale Discussions in Illinois, 2005 Every mesoscale discussion in 2005

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.