Alert archive / Kansas / Mesoscale Discussions in 2013

Mesoscale Discussion 712

May 19, 201341 counties in Kansas; 10 counties in Missouri; 10 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 19, 2013, 7:55 PM CDT for 41 counties in Kansas; 10 counties in Missouri; 10 counties in Nebraska. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued
May 19, 2013, 7:55 PM CDT (00:55 UTC)
Expired
May 19, 2013, 9:00 PM CDT
In force
65 min
Issued by
the Storm Prediction Center
All 61 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Brown County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Cowley County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Elk County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Lincoln County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Gentry County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Thayer County, NE

The radar

The Topeka radar (KTWX), 37 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

Lamont, OK (KLMN), launched 00:00Z, 0.9 hours before the alert went out and 253 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, Lamont, OK at 00:00Z on 2013-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1603 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, Lamont, OK at 00:00Z on 2013-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 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
1603 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1367 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.8

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
May 19, 9:34 PM CDTMesoscale DiscussionSPCChautauqua, Labette, Montgomery, Neosho, Wilson26 min
May 19, 10:16 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford59 min
May 19, 11:49 PM CDTMesoscale DiscussionSPCCherokee56 min
May 20, 2:44 AM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery2 hr
May 20, 8:46 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Coffey, Linn, Miami and 3 more59 min
May 20, 12:26 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 6 more2 hr
May 20, 12:46 PM CDTTornado WatchSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 13 more8 hr
May 20, 2:31 PM CDTMesoscale DiscussionSPCAllen, Chautauqua, Cherokee, Crawford, Elk, Labette and 4 more119 min
May 19, 7:13 PM CDTMesoscale DiscussionSPCClark62 min
May 19, 8:10 PM CDTTornado WatchSPCClark, Scotland6 hr
May 20, 3:27 PM CDTMesoscale DiscussionSPCAudrain, Lincoln, Marion, Monroe, Montgomery, Pike and 2 more63 min
May 20, 5:07 PM CDTMesoscale DiscussionSPCAudrain, Crawford, Franklin, Gasconade, Lincoln, Marion and 8 more23 min
May 20, 5:24 PM CDTTornado WatchSPCAudrain, Boone, Callaway, Clark, Cole, Crawford and 20 more7 hr
May 20, 5:38 PM CDTMesoscale DiscussionSPCAndrew, DeKalb, Gentry, Harrison, Worth67 min
May 20, 6:53 PM CDTMesoscale DiscussionSPCCarter, Dent, Douglas, Howell, Iron, Madison and 8 more67 min
May 19, 9:26 PM CDTMesoscale DiscussionSPCBurt, Butler, Colfax, Cuming, Dodge, Douglas and 5 more64 min

Nearby

Mesoscale Discussions in Kansas, 2013Mesoscale Discussions in Missouri, 2013Mesoscale Discussions in Nebraska, 2013Every mesoscale discussion in 2013

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.