Alert archive / Illinois / Mesoscale Discussions in 2005

Mesoscale Discussion 2429

November 15, 20057 states

The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2005, 12:34 PM CST for 7 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Nov 15, 2005, 12:34 PM CST (18:34 UTC)
Expired
Nov 15, 2005, 2:30 PM CST
In force
116 min
Issued by
the Storm Prediction Center
All 209 counties

Arkansas County, AR, Chicot County, AR, Clark County, AR, Clay County, AR, Cleburne County, AR, Cleveland County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Sharp County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Alexander County, IL, Bond County, IL, Calhoun County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Greene County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Jersey County, IL, Johnson County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Massac County, IL, Monroe County, IL, Montgomery County, IL, Moultrie County, IL, Perry County, IL, Piatt County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Saline County, IL, Sangamon County, IL, Shelby County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clay County, IN, Daviess County, IN, Dubois County, IN, Gibson County, IN, Greene County, IN, Knox County, IN, Martin County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vermillion County, IN, Vigo County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, City of Saint Louis, MO, Dunklin County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Washington County, MO, Wayne County, MO, Alcorn County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Webster County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 106 km from the middle of the area, began a volume at 18:35 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

Little Rock, AR (KLZK), launched 12:00Z, 6.6 hours before the alert went out and 233 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, Little Rock, AR at 12:00Z on 2005-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 699 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, Little Rock, AR at 12:00Z on 2005-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 313 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
699 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
313 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.7

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
Nov 14, 8:56 PM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 28 more3 hr
Nov 14, 9:28 PM CSTTornado WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 19 more8 hr
Nov 14, 10:00 PM CSTTornado WatchSPCClay, Craighead, Greene, Lawrence, Mississippi, Poinsett and 1 more7 hr
Nov 15, 2:22 AM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 28 more113 min
Nov 15, 6:04 AM CSTMesoscale DiscussionSPCArkansas, Baxter, Benton, Boone, Bradley, Calhoun and 66 more116 min
Nov 15, 7:02 AM CSTTornado WatchSPCBaxter, Benton, Boone, Carroll, Clark, Columbia and 29 more8 hr
Nov 15, 7:42 AM CSTTornado WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clay and 34 more9 hr
Nov 15, 10:13 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 67 more2 hr
Nov 15, 8:31 AM CSTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 34 more59 min
Nov 15, 10:13 AM CSTTornado WatchSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 41 more7 hr
Nov 15, 1:32 PM CSTMesoscale DiscussionSPCClark, Clay, Clinton, Crawford, Cumberland, Edgar and 25 more88 min
Nov 15, 11:55 AM CSTMesoscale DiscussionSPCAdams, Bartholomew, Blackford, Brown, Clark, Dearborn and 30 more2 hr
Nov 15, 2:01 PM CSTTornado WatchSPCAdams, Allen, Bartholomew, Blackford, Boone, Brown and 61 more7 hr
Nov 15, 3:40 PM CSTMesoscale DiscussionSPCAllen, DeKalb, Kosciusko, LaGrange, Marshall, Noble and 2 more95 min
Nov 15, 5:06 PM CSTTornado WatchSPCCarter, Greenup, Lewis, Mason6 hr
Nov 15, 5:58 PM CSTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Boyle, Bullitt and 30 more92 min
Nov 15, 9:31 AM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Covington, Franklin and 21 more119 min
Nov 15, 12:09 PM CSTTornado WatchSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 13 more7 hr
Nov 15, 2:55 PM CSTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Carroll, Chickasaw, Choctaw and 27 more65 min
Nov 15, 3:15 PM CSTTornado WatchSPCAlcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 25 more8 hr
Nov 15, 3:17 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 9 more88 min
Nov 14, 11:08 PM CSTMesoscale DiscussionSPCBarton, Bates, Benton, Camden, Cedar, Dade and 12 more97 min
Nov 15, 2:57 AM CSTMesoscale DiscussionSPCBarton, Bates, Cass, Cedar, Dade, Henry and 3 more63 min
Nov 15, 7:47 AM CSTMesoscale DiscussionSPCAtchison, Holt, Nodaway4 hr

Nearby

Mesoscale Discussions in Illinois, 2005Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Mississippi, 2005Every mesoscale discussion in 2005

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.