Alert archive / Missouri / Mesoscale Discussions in 2006

Mesoscale Discussion 400

April 2, 200624 counties in Kansas; 30 counties in Missouri; 9 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2006, 9:41 AM CDT for 24 counties in Kansas; 30 counties in Missouri; 9 counties in Nebraska. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 2, 2006, 9:41 AM CDT (14:41 UTC)
Expired
Apr 2, 2006, 11:45 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 63 counties

Anderson County, KS, Atchison County, KS, Bourbon County, KS, Brown County, KS, Clay County, KS, Cloud County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Marshall County, KS, Miami County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton 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, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Ray County, MO, Saline County, MO, Vernon County, MO, Worth County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Thayer County, NE

The radar

The Pleasant Hill radar (KEAX), 102 km from the middle of the area, began a volume at 14:43 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, 2.7 hours before the alert went out and 63 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 2006-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 74 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 2006-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 407 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
74 J/kg
Mixed-layer CIN
-267 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
407 m²/s²
0-3 km storm-relative helicity
468 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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
Apr 1, 6:24 PM CSTTornado WatchSPCButler, Chase, Cowley, Harper, Harvey, Kingman and 6 more6 hr
Apr 1, 7:38 PM CSTMesoscale DiscussionSPCClay, Dickinson, Geary, Marshall, Morris, Nemaha and 7 more97 min
Apr 1, 7:52 PM CSTSevere Thunderstorm WatchSPCClay, Cloud, Dickinson, Geary, Marshall, Morris and 6 more4 hr
Apr 1, 10:35 PM CSTSevere Thunderstorm WatchSPCAllen, Chautauqua, Elk, Greenwood, Labette, Montgomery and 3 more2 hr
Apr 1, 11:36 PM CSTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford4 hr
Apr 2, 12:44 AM CSTMesoscale DiscussionSPCBourbon, Johnson, Leavenworth, Linn, Miami, Wyandotte2 hr
Apr 2, 1:13 PM CDTSevere Thunderstorm WatchSPCAtchison, Doniphan, Leavenworth, Wyandotte4 hr
Apr 2, 1:35 AM CSTSevere Thunderstorm WatchSPCCamden, Christian, Dallas, Dent, Douglas, Greene and 14 more3 hr
Apr 2, 10:42 AM CDTMesoscale DiscussionSPCBollinger, Butler, Carter, Dunklin, Mississippi, New Madrid and 5 more93 min
Apr 2, 11:34 AM CDTMesoscale DiscussionSPCAudrain, Barry, Benton, Boone, Callaway, Camden and 32 more116 min
Apr 2, 12:28 PM CDTTornado WatchSPCAdair, Audrain, Benton, Boone, Callaway, Camden and 58 more8 hr
Apr 2, 3:16 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Callaway, Camden, Carter and 44 more89 min
Apr 2, 3:27 PM CDTTornado WatchSPCDunklin, Pemiscot7 hr
Apr 2, 3:50 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Iron, Jefferson and 16 more5 hr

Nearby

Mesoscale Discussions in Missouri, 2006Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in Nebraska, 2006Every mesoscale discussion in 2006

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.