Alert archive / Missouri / Mesoscale Discussions in 2014

Mesoscale Discussion 1234

June 30, 2014Adams County, Illinois; Johnson County, Kansas; 16 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 30, 2014, 10:14 PM CDT for Adams County, Illinois; Johnson County, Kansas; 16 counties in Missouri. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: Jun 30, 2014, 10:14 PM CDT (03:14 UTC)
Expired: Jun 30, 2014, 11:15 PM CDT
In force: 61 min
Issued by: the Storm Prediction Center

Counties Adams County, IL, Johnson County, KS, Carroll County, MO, Cass County, MO, Chariton County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Lewis County, MO, Macon County, MO, Marion County, MO, Monroe County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Shelby County, MO

The radar

The Pleasant Hill radar (KEAX), 125 km from the middle of the area, began a volume at 03:14 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

Topeka, KS (KFOE), launched 00:00Z, 3.2 hours before the alert went out and 230 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: 4172 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1387 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 3.2
Supercell composite: 34.9

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 30, 7:26 PM CDT	Mesoscale Discussion	SPC	Bureau, Fulton, Hancock, Henderson, Henry, Knox and 13 more	2 hr
Jun 30, 7:47 PM CDT	Mesoscale Discussion	SPC	Kankakee	88 min
Jun 30, 7:48 PM CDT	Mesoscale Discussion	SPC	Hancock	57 min
Jun 30, 8:44 PM CDT	Mesoscale Discussion	SPC	Bureau, Cook, DeKalb, DuPage, Grundy, Iroquois and 12 more	31 min
Jun 30, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	Cass, Champaign, Cook, DeWitt, Douglas, DuPage and 31 more	6 hr
Jun 30, 9:47 PM CDT	Mesoscale Discussion	SPC	DuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 9 more	88 min
Jun 30, 10:11 PM CDT	Mesoscale Discussion	SPC	Champaign, Douglas, Edgar, Moultrie, Piatt, Vermilion	2 hr
Jun 30, 10:22 PM CDT	Mesoscale Discussion	SPC	Kankakee, Will	53 min
Jun 30, 11:31 PM CDT	Mesoscale Discussion	SPC	Champaign, DeWitt, Logan, Macon, Menard, Piatt and 2 more	89 min
Jul 1, 1:31 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Jackson, Johnson, Massac, Perry and 5 more	59 min
Jul 1, 2:07 PM CDT	Severe Thunderstorm Watch	SPC	Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more	7 hr
Jul 1, 6:13 PM CDT	Mesoscale Discussion	SPC	Massac	92 min
Jun 30, 8:17 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Butler, Chase, Coffey, Cowley, Douglas and 20 more	6 hr
Jun 30, 9:38 PM CDT	Mesoscale Discussion	SPC	Barber, Butler, Chase, Clark, Comanche, Greenwood and 9 more	67 min
Jun 30, 11:38 PM CDT	Mesoscale Discussion	SPC	Barber	67 min

Nearby

Mesoscale Discussions in Missouri, 2014 Mesoscale Discussions in Illinois, 2014 Mesoscale Discussions in Kansas, 2014 Every mesoscale discussion in 2014

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.