Alert archive / Missouri / Mesoscale Discussions in 2015

Mesoscale Discussion 1791

September 10, 201513 counties in Kansas; 21 counties in Missouri; Craig County, Delaware County, Ottawa County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Sep 10, 2015, 3:58 PM CDT for 13 counties in Kansas; 21 counties in Missouri; Craig County, Delaware County, Ottawa County, Oklahoma. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Sep 10, 2015, 3:58 PM CDT (20:58 UTC)
Expired: Sep 10, 2015, 6:30 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 40%

All 37 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Douglas County, KS, Franklin County, KS, Johnson County, KS, Labette County, KS, Linn County, KS, Miami County, KS, Neosho County, KS, Wyandotte County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Delaware County, OK, Ottawa County, OK

The radar

The Pleasant Hill radar (KEAX), 82 km from the middle of the area, began a volume at 20:58 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, 9.0 hours before the alert went out and 164 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: 348 J/kg
Mixed-layer CIN: -267 J/kg
Mixed-layer LCL: 1236 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

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
Sep 10, 12:56 AM CDT	Mesoscale Discussion	SPC	Marshall, Republic, Washington	2 hr
Sep 10, 1:23 PM CDT	Mesoscale Discussion	SPC	Clay, Cloud, Decatur, Dickinson, Ellis, Ellsworth and 20 more	97 min
Sep 10, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Chase, Clay, Cloud, Decatur, Dickinson and 26 more	5 hr
Sep 10, 5:06 PM CDT	Mesoscale Discussion	SPC	Grant, Haskell, Meade, Morton, Seward, Stanton and 1 more	2 hr
Sep 10, 5:27 PM CDT	Mesoscale Discussion	SPC	Barton, Chase, Clay, Cloud, Decatur, Dickinson and 35 more	93 min
Sep 10, 5:44 PM CDT	Severe Thunderstorm Watch	SPC	Edwards, Ellis, Finney, Ford, Grant, Gray and 17 more	4 hr

Nearby

Mesoscale Discussions in Missouri, 2015 Mesoscale Discussions in Kansas, 2015 Mesoscale Discussions in Oklahoma, 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.