Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 2378

October 29, 200423 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Oct 29, 2004, 9:14 PM CDT for 23 counties in Missouri. It was in force for 31 min.

The area

The outline as issued.

The facts

Issued: Oct 29, 2004, 9:14 PM CDT (02:14 UTC)
Expired: Oct 29, 2004, 9:45 PM CDT
In force: 31 min
Issued by: the Storm Prediction Center

All 23 counties

Benton County, MO, Boone County, MO, Camden County, MO, Chariton County, MO, Clark County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Hickory County, MO, Howard County, MO, Knox County, MO, Lewis County, MO, Macon County, MO, Moniteau County, MO, Monroe County, MO, Morgan County, MO, Pettis County, MO, Polk County, MO, Randolph County, MO, Saline County, MO, Scotland County, MO, Shelby County, MO

The radar

The Pleasant Hill radar (KEAX), 111 km from the middle of the area, began a volume at 02:14 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 00:00Z, 2.2 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-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: 452 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 279 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.9

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.

Issued	Product	Office	Counties	Lasted
Oct 29, 7:05 PM CDT	Mesoscale Discussion	SPC	Adair, Barton, Bates, Benton, Boone, Caldwell and 41 more	85 min
Oct 29, 8:31 PM CDT	Mesoscale Discussion	SPC	Barry, McDonald, Stone	89 min
Oct 29, 9:02 PM CDT	Mesoscale Discussion	SPC	Clark, Scotland	88 min
Oct 29, 10:23 PM CDT	Mesoscale Discussion	SPC	Christian, Stone	67 min

Nearby

Mesoscale Discussions in Missouri, 2004 Every mesoscale discussion in 2004

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.