Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 1001

May 28, 201150 counties in Kansas; 13 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 28, 2011, 2:50 AM CDT for 50 counties in Kansas; 13 counties in Missouri. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 28, 2011, 2:50 AM CDT (07:50 UTC)
Expired
May 28, 2011, 4:15 AM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 63 counties

Allen County, KS, Anderson County, KS, Barber County, KS, Barton County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Comanche County, KS, Cowley County, KS, Crawford County, KS, Dickinson County, KS, Douglas County, KS, Edwards County, KS, Elk County, KS, Ellsworth County, KS, Ford County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Johnson County, KS, Kingman County, KS, Kiowa County, KS, Labette County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Stafford County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Dade County, MO, Henry County, MO, Hickory County, MO, Jackson County, MO, Johnson County, MO, Polk County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Wichita radar (KICT), 95 km from the middle of the area, began a volume at 07:52 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, 7.8 hours before the alert went out and 135 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 2011-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
May 28, 4:11 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 17 more5 hr
May 28, 6:06 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Chase, Coffey, Crawford and 6 more84 min
May 28, 6:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Coffey and 11 more116 min
May 28, 12:15 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Caldwell, Carroll, Chariton and 22 more90 min
May 28, 5:39 PM CDTMesoscale DiscussionSPCLincoln, Saint Charles, Saint Louis, Warren, City of Saint Louis66 min

Nearby

Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Missouri, 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.