Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 1072

June 17, 201743 counties in Kansas; 17 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2017, 3:45 PM CDT for 43 counties in Kansas; 17 counties in Missouri. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jun 17, 2017, 3:45 PM CDT (20:45 UTC)
Expired
Jun 17, 2017, 6:15 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 60 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Edwards County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Kiowa County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Morris County, KS, Osage County, KS, Pawnee County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Stafford County, KS, Wabaunsee County, KS, Woodson County, KS, Wyandotte County, KS, Andrew County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Platte County, MO, Ray County, MO

The radar

The Topeka radar (KTWX), 62 km from the middle of the area, began a volume at 20:42 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 8.8 hours before the alert went out and 99 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-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 2017-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 828 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2017-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 388 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
828 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
388 m²/s²
0-3 km storm-relative helicity
536 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.3

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.

IssuedProductOfficeCountiesLasted
Jun 16, 7:52 PM CDTSevere Thunderstorm WatchSPCAnderson, Atchison, Brown, Clay, Coffey, Doniphan and 19 more9 hr
Jun 16, 9:27 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 14 more2 hr
Jun 16, 11:14 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Bourbon, Brown, Clay, Coffey and 21 more91 min
Jun 17, 12:09 AM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Cherokee, Crawford, Neosho, Woodson9 hr
Jun 17, 2:58 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 11 more2 hr
Jun 17, 5:31 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Neosho89 min
Jun 17, 6:12 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Barber, Butler, Chase and 53 more7 hr
Jun 16, 11:36 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Gasconade, Knox and 11 more3 hr
Jun 17, 2:44 PM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Schuyler, Scotland2 hr
Jun 17, 5:39 PM CDTSevere Thunderstorm WatchSPCAdair, Clark, Knox, Lewis, Marion, Putnam and 3 more7 hr

Nearby

Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Missouri, 2017Every 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.