Alert archive / Missouri / Mesoscale Discussions in 2017

Mesoscale Discussion 1068

June 17, 20174 states

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2017, 5:31 AM CDT for 4 states. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2017, 5:31 AM CDT (10:31 UTC)
Expired: Jun 17, 2017, 7:00 AM CDT
In force: 89 min
Issued by: the Storm Prediction Center

All 22 counties

Benton County, AR, Carroll County, AR, Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Neosho County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Greene County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Ottawa County, OK

The radar

The Springfield radar (KSGF), 70 km from the middle of the area, began a volume at 10:34 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, 10.5 hours before the alert went out and 29 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: 3060 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1311 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 9:28 AM CDT	Mesoscale Discussion	SPC	Howard, Little River, Montgomery, Polk, Scott, Sebastian and 1 more	2 hr
Jun 16, 7:52 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Atchison, Brown, Clay, Coffey, Doniphan and 19 more	9 hr
Jun 16, 9:27 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Jackson and 14 more	2 hr
Jun 16, 11:14 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Bourbon, Brown, Clay, Coffey and 21 more	91 min
Jun 17, 12:09 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Neosho, Woodson	9 hr
Jun 17, 2:58 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 11 more	2 hr
Jun 17, 3:45 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Barber, Barton, Butler and 37 more	3 hr
Jun 17, 6:12 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Atchison, Barber, Butler, Chase and 53 more	7 hr
Jun 16, 11:36 PM CDT	Severe Thunderstorm Watch	SPC	Audrain, Boone, Callaway, Cole, Gasconade, Knox and 11 more	3 hr
Jun 17, 2:44 PM CDT	Mesoscale Discussion	SPC	Adair, Clark, Knox, Lewis, Schuyler, Scotland	2 hr
Jun 17, 5:39 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Clark, Knox, Lewis, Marion, Putnam and 3 more	7 hr

Nearby

Mesoscale Discussions in Missouri, 2017 Mesoscale Discussions in Kansas, 2017 Mesoscale Discussions in Arkansas, 2017 Every mesoscale discussion in 2017

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.