Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 878

May 24, 200437 counties in Kansas; Platte County, Missouri

The Storm Prediction Center issued this mesoscale discussion at May 24, 2004, 6:57 PM CDT for 37 counties in Kansas; Platte County, Missouri. It was in force for 48 min.

The area

The outline as issued.

The facts

Issued
May 24, 2004, 6:57 PM CDT (23:57 UTC)
Expired
May 24, 2004, 7:45 PM CDT
In force
48 min
Issued by
the Storm Prediction Center
All 38 counties

Anderson County, KS, Atchison County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Jewell County, KS, Johnson County, KS, Leavenworth County, KS, Lincoln County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Saline County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Platte County, MO

The radar

The Topeka radar (KTWX), 23 km from the middle of the area, began a volume at 23:58 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 12:00Z, 12.0 hours before the alert went out and 30 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 2004-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 817 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 2004-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
817 J/kg
Mixed-layer CIN
-242 J/kg
Mixed-layer LCL
1250 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

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 24, 9:30 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Chase and 27 more2 hr
May 24, 12:37 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 26 more83 min
May 24, 1:10 PM CDTTornado WatchSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 27 more9 hr
May 24, 3:28 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 28 more92 min
May 24, 3:57 PM CDTMesoscale DiscussionSPCButler, Cowley, Greenwood, Sedgwick, Sumner93 min
May 24, 4:30 PM CDTTornado WatchSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 16 more6 hr
May 24, 5:26 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Marshall, Nemaha, Republic and 1 more94 min
May 24, 5:40 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 9 more95 min
May 23, 8:40 PM CDTMesoscale DiscussionSPCJefferson, Saint Charles, Sainte Genevieve, Saint Francois, Saint Louis, City of Saint Louis65 min
May 23, 9:54 PM CDTMesoscale DiscussionSPCBarry, Christian, Crawford, Dent, Douglas, Greene and 11 more96 min
May 24, 11:30 AM CDTTornado WatchSPCAndrew, Atchison, Daviess, Gentry, Grundy, Harrison and 4 more11 hr
May 24, 1:54 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 9 more96 min
May 24, 2:39 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Daviess, DeKalb, Gentry, Grundy and 5 more96 min
May 24, 5:45 PM CDTTornado WatchSPCAdair, Audrain, Boone, Carroll, Chariton, Clark and 19 more5 hr

Nearby

Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Missouri, 2004Every mesoscale discussion in 2004

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.