Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 980

June 11, 201518 counties in Kansas; 7 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2015, 7:54 PM CDT for 18 counties in Kansas; 7 counties in Missouri. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
Jun 11, 2015, 7:54 PM CDT (00:54 UTC)
Expired
Jun 11, 2015, 9:30 PM CDT
In force
96 min
Issued by
the Storm Prediction Center
All 25 counties

Anderson County, KS, Atchison County, KS, Chase County, KS, Coffey County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Lyon County, KS, Marion County, KS, Morris County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, Jackson County, MO, Platte County, MO, Ray County, MO

The radar

The Topeka radar (KTWX), 47 km from the middle of the area, began a volume at 00:55 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, 0.9 hours before the alert went out and 4 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 00:00Z on 2015-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 938 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 00:00Z on 2015-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 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
938 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1811 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
314 m²/s²
Significant tornado parameter
0.2
Supercell composite
10.8

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.

IssuedProductOfficeCountiesLasted
Jun 11, 7:10 PM CDTMesoscale DiscussionSPCClark, Finney, Ford, Grant, Gray, Greeley and 10 more95 min
Jun 11, 9:48 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Finney, Ford, Grant and 12 more87 min
Jun 11, 11:10 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Ford, Grant, Haskell and 6 more65 min
Jun 12, 3:52 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Labette83 min
Jun 11, 8:13 PM CDTMesoscale DiscussionSPCClark, Knox, Lewis, Scotland92 min
Jun 11, 8:25 PM CDTSevere Thunderstorm WatchSPCClark, Knox, Lewis, Marion, Monroe, Pike and 3 more5 hr
Jun 11, 10:30 PM CDTMesoscale DiscussionSPCAdair, Caldwell, Carroll, Chariton, Clark, Clay and 18 more90 min

Nearby

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