Alert archive / Missouri / Mesoscale Discussions in 2006

Mesoscale Discussion 261

March 12, 200612 counties in Illinois; 18 counties in Kansas; 66 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Mar 12, 2006, 3:02 PM CST for 12 counties in Illinois; 18 counties in Kansas; 66 counties in Missouri. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Mar 12, 2006, 3:02 PM CST (21:02 UTC)
Expired
Mar 12, 2006, 4:30 PM CST
In force
88 min
Issued by
the Storm Prediction Center
All 96 counties

Adams County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Morgan County, IL, Pike County, IL, Saint Clair County, IL, Scott County, IL, Allen County, KS, Anderson County, KS, Bourbon County, KS, Coffey County, KS, Crawford 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, Woodson County, KS, Wyandotte County, KS, Adair County, MO, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, City of Saint Louis, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Daviess County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Grundy County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jefferson County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Platte County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Shelby County, MO, St. Clair County, MO, Sullivan County, MO, Vernon County, MO, Warren County, MO, Washington County, MO

The radar

The Pleasant Hill radar (KEAX), 138 km from the middle of the area, began a volume at 21:05 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

Springfield, MO (KSGF), launched 12:00Z, 9.0 hours before the alert went out and 208 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, Springfield, MO at 12:00Z on 2006-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 262 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, Springfield, MO at 12:00Z on 2006-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
262 J/kg
Mixed-layer CIN
-159 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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
Mar 11, 6:39 PM CSTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clinton, DeWitt and 34 more66 min
Mar 11, 6:49 PM CSTTornado WatchSPCBond, Clinton, Fayette, Madison, Marion, Monroe and 3 more7 hr
Mar 11, 8:06 PM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Coles and 21 more84 min
Mar 11, 9:11 PM CSTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 18 more94 min
Mar 11, 9:55 PM CSTTornado WatchSPCFranklin, Hamilton, Jackson, Jefferson, Perry, Wayne and 1 more3 hr
Mar 11, 10:50 PM CSTMesoscale DiscussionSPCWabash55 min
Mar 11, 11:10 PM CSTTornado WatchSPCEdwards, Wabash, White2 hr
Mar 11, 11:13 PM CSTMesoscale DiscussionSPCFranklin, Jackson, Jefferson, Monroe, Perry, Randolph and 4 more92 min
Mar 12, 1:07 AM CSTTornado WatchSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more7 hr
Mar 12, 3:39 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more96 min
Mar 12, 10:02 AM CSTSevere Thunderstorm WatchSPCAdams, Brown, Calhoun, Pike110 min
Mar 12, 11:17 AM CSTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 28 more88 min
Mar 12, 11:49 AM CSTTornado WatchSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 30 more10 hr
Mar 12, 1:02 PM CSTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Hardin, Johnson, Pope and 5 more88 min
Mar 12, 2:33 PM CSTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Grundy, Henderson, Henry and 13 more87 min
Mar 12, 4:22 PM CSTMesoscale DiscussionSPCBureau, Carroll, DeKalb, DuPage, Grundy, Henderson and 18 more53 min
Mar 12, 4:49 PM CSTTornado WatchSPCBureau, Ford, Grundy, Henderson, Henry, Iroquois and 11 more5 hr
Mar 12, 5:06 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 26 more84 min
Mar 12, 4:32 AM CSTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 31 more88 min
Mar 12, 5:04 AM CSTSevere Thunderstorm WatchSPCAllen, Anderson, Barton, Butler, Chase, Chautauqua and 38 more7 hr
Mar 12, 7:09 AM CSTMesoscale DiscussionSPCBrown, Doniphan, Jewell, Johnson, Leavenworth, Marshall and 5 more96 min
Mar 12, 7:36 AM CSTSevere Thunderstorm WatchSPCBrown, Jewell, Marshall, Mitchell, Nemaha, Osborne and 3 more4 hr
Mar 12, 7:47 AM CSTSevere Thunderstorm WatchSPCAtchison, Doniphan, Johnson, Leavenworth, Linn, Miami and 1 more4 hr
Mar 12, 11:29 AM CSTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 15 more2 hr
Mar 12, 1:29 PM CSTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Coffey, Crawford and 16 more91 min
Mar 11, 6:11 PM CSTMesoscale DiscussionSPCBarry, Bollinger, Butler, Carter, Christian, Dent and 19 more2 hr
Mar 12, 12:46 PM CSTTornado WatchSPCBarry, Christian, Douglas, Howell, McDonald, Newton and 4 more9 hr
Mar 12, 3:38 PM CSTMesoscale DiscussionSPCMcDonald2 hr

Nearby

Mesoscale Discussions in Missouri, 2006Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in Illinois, 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.