Alert archive / Missouri / Mesoscale Discussions in 2003

Mesoscale Discussion 2082

August 4, 2003Linn County, Miami County, Kansas; 32 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Aug 4, 2003, 5:11 PM CDT for Linn County, Miami County, Kansas; 32 counties in Missouri. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Aug 4, 2003, 5:11 PM CDT (22:11 UTC)
Expired: Aug 4, 2003, 6:45 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center

All 34 counties

Linn County, KS, Miami County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Iron County, MO, Laclede County, MO, Madison County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Reynolds County, MO, Shannon County, MO, St. Clair County, MO, Texas County, MO, Vernon County, MO, Wayne County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 86 km from the middle of the area, began a volume at 22:15 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

Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 137 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: 1111 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 938 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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
Aug 4, 1:48 PM CDT	Mesoscale Discussion	SPC	Chautauqua, Cherokee, Labette, Montgomery, Neosho, Wilson	2 hr
Aug 4, 2:15 PM CDT	Mesoscale Discussion	SPC	Finney, Gove, Greeley, Hamilton, Kearny, Lane and 7 more	2 hr
Aug 4, 4:40 PM CDT	Mesoscale Discussion	SPC	Barber, Clark, Comanche	2 hr
Aug 4, 1:43 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Dunklin, Mississippi, New Madrid and 4 more	2 hr
Aug 4, 2:40 PM CDT	Severe Thunderstorm Watch	SPC	Butler, Carter, Douglas, Dunklin, Howell, Mississippi and 10 more	6 hr
Aug 4, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	Barry, Barton, Cedar, Christian, Dade, Greene and 9 more	6 hr

Nearby

Mesoscale Discussions in Missouri, 2003 Mesoscale Discussions in Kansas, 2003 Every mesoscale discussion in 2003

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.