Alert archive / Missouri / Mesoscale Discussions in 2003

Mesoscale Discussion 867

May 8, 200319 counties in Kansas; 29 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 8, 2003, 7:13 PM CDT for 19 counties in Kansas; 29 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 8, 2003, 7:13 PM CDT (00:13 UTC)
Expired
May 8, 2003, 9:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 48 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Wyandotte County, KS, Andrew County, MO, Barton County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO, St. Clair County, MO, Vernon County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 56 km from the middle of the area, began a volume at 00:16 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 (KTOP), launched 00:00Z, 0.2 hours before the alert went out and 82 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 2003-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1679 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 2003-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 square meters per square second.1939587897Sfc1 km3 km6 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
1679 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
2.1
Supercell composite
9.5

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 8, 8:30 PM CDTMesoscale DiscussionSPCButler, Chautauqua, Cowley, Elk, Greenwood, Harper and 5 more60 min
May 9, 4:17 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Crawford, Labette, Linn and 4 more28 min
May 9, 4:45 PM CDTTornado WatchSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 5 more6 hr
May 8, 7:55 PM CDTSevere Thunderstorm WatchSPCAdair, Chariton, Clark, Knox, Lewis, Linn and 9 more5 hr
May 8, 9:00 PM CDTTornado WatchSPCAudrain, Benton, Boone, Callaway, Camden, Cole and 26 more5 hr
May 8, 9:27 PM CDTMesoscale DiscussionSPCAdair, Chariton, Clark, Knox, Lewis, Linn and 10 more93 min
May 8, 11:50 PM CDTMesoscale DiscussionSPCAdair, Chariton, Clark, Knox, Lewis, Linn and 9 more55 min
May 9, 12:05 AM CDTSevere Thunderstorm WatchSPCLincoln, Saint Charles, Saint Louis, City of Saint Louis6 hr
May 9, 2:48 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Crawford, Dent, Franklin, Iron and 15 more117 min

Nearby

Mesoscale Discussions in Missouri, 2003Mesoscale Discussions in Kansas, 2003Every mesoscale discussion in 2003

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.