Alert archive / Missouri / Mesoscale Discussions in 2011

Mesoscale Discussion 1203

June 13, 201118 counties in Kansas; 25 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2011, 2:41 AM CDT for 18 counties in Kansas; 25 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 2011, 2:41 AM CDT (07:41 UTC)
Expired
Jun 13, 2011, 4:45 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 43 counties

Anderson County, KS, Atchison County, KS, Bourbon County, KS, Brown County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Bates County, MO, Benton County, MO, Buchanan County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Pettis County, MO, Platte County, MO, Polk County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 24 km from the middle of the area, began a volume at 07:44 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 (KTOP), launched 00:00Z, 7.7 hours before the alert went out and 107 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 2011-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 373 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 2011-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.19395878Sfc1 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
373 J/kg
Mixed-layer CIN
-318 J/kg
Mixed-layer LCL
1124 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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 13, 3:51 PM CDTMesoscale DiscussionSPCBarber, Comanche, Harper, Kingman, Pratt, Reno and 2 more114 min
Jun 13, 5:24 PM CDTSevere Thunderstorm WatchSPCCheyenne, Greeley, Sherman, Wallace7 hr
Jun 13, 5:16 AM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Benton, Boone, Caldwell, Callaway and 69 more8 hr
Jun 13, 6:52 AM CDTMesoscale DiscussionSPCAdair, Audrain, Benton, Boone, Caldwell, Callaway and 58 more83 min
Jun 13, 9:06 AM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Mississippi and 7 more54 min
Jun 13, 10:04 AM CDTMesoscale DiscussionSPCAdair, Audrain, Benton, Boone, Caldwell, Callaway and 50 more86 min
Jun 13, 10:05 AM CDTSevere Thunderstorm WatchSPCButler, Carter, Douglas, Dunklin, Howell, New Madrid and 6 more8 hr
Jun 13, 3:25 PM CDTMesoscale DiscussionSPCDouglas, Howell, Ozark, Taney35 min

Nearby

Mesoscale Discussions in Missouri, 2011Mesoscale Discussions in Kansas, 2011Every mesoscale discussion in 2011

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.