Alert archive / Missouri / Mesoscale Discussions in 2015

Mesoscale Discussion 1105

June 21, 2015Doniphan County, Kansas; 15 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 21, 2015, 3:03 PM CDT for Doniphan County, Kansas; 15 counties in Missouri. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 21, 2015, 3:03 PM CDT (20:03 UTC)
Expired: Jun 21, 2015, 4:30 PM CDT
In force: 87 min
Issued by: the Storm Prediction Center

Counties Doniphan County, KS, Andrew County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Lafayette County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 118 km from the middle of the area, began a volume at 20:06 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

Topeka, KS (KFOE), launched 12:00Z, 8.1 hours before the alert went out and 135 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: 1785 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 21, 9:42 AM CDT	Mesoscale Discussion	SPC	Atchison, Doniphan, Douglas, Jefferson, Johnson, Leavenworth and 2 more	2 hr
Jun 21, 12:12 PM CDT	Severe Thunderstorm Watch	SPC	Atchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 1 more	5 hr
Jun 20, 10:12 PM CDT	Mesoscale Discussion	SPC	Adair, Clark, Grundy, Harrison, Knox, Lewis and 8 more	63 min
Jun 21, 2:58 AM CDT	Mesoscale Discussion	SPC	Audrain, Lincoln, Monroe, Montgomery, Pike, Ralls and 1 more	2 hr
Jun 21, 3:56 PM CDT	Mesoscale Discussion	SPC	Benton, Camden, Cape Girardeau, Cole, Crawford, Franklin and 14 more	2 hr
Jun 21, 6:44 PM CDT	Mesoscale Discussion	SPC	Andrew, Atchison, Daviess, Gentry, Grundy, Harrison and 6 more	91 min

Nearby

Mesoscale Discussions in Missouri, 2015 Mesoscale Discussions in Kansas, 2015 Every mesoscale discussion in 2015

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.