Alert archive / Missouri / Mesoscale Discussions in 2005

Mesoscale Discussion 2374

November 5, 200524 counties in Illinois; 43 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Nov 5, 2005, 3:19 PM CST for 24 counties in Illinois; 43 counties in Missouri. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Nov 5, 2005, 3:19 PM CST (21:19 UTC)
Expired: Nov 5, 2005, 5:15 PM CST
In force: 116 min
Issued by: the Storm Prediction Center

All 67 counties

Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Fulton County, IL, Greene County, IL, Hancock County, IL, Jersey County, IL, Knox County, IL, Logan County, IL, Macoupin County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, Menard County, IL, Morgan County, IL, Peoria County, IL, Pike County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Tazewell County, IL, Warren County, IL, Woodford County, IL, Audrain County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cedar County, MO, Chariton County, MO, Clark County, MO, Cole County, MO, Cooper County, MO, Dallas County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Lewis County, MO, Lincoln 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, Pike County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Scotland County, MO, Shelby County, MO, St. Clair County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 159 km from the middle of the area, began a volume at 21:20 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

Davenport, (KDVN), launched 12:00Z, 9.3 hours before the alert went out and 294 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1361 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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.

Issued	Product	Office	Counties	Lasted
Nov 5, 12:21 PM CST	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more	2 hr
Nov 5, 3:50 PM CST	Tornado Watch	SPC	Adams, Brown, Calhoun, Cass, Fulton, Greene and 12 more	6 hr
Nov 5, 4:55 PM CST	Mesoscale Discussion	SPC	Barry, Carter, Christian, Dallas, Dent, Douglas and 17 more	95 min
Nov 5, 5:10 PM CST	Severe Thunderstorm Watch	SPC	Barry, Christian, Dallas, Dent, Douglas, Greene and 13 more	4 hr

Nearby

Mesoscale Discussions in Missouri, 2005 Mesoscale Discussions in Illinois, 2005 Every 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.