Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 1548

July 6, 20045 states

The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2004, 5:37 PM CDT for 5 states. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued: Jul 6, 2004, 5:37 PM CDT (22:37 UTC)
Expired: Jul 6, 2004, 6:30 PM CDT
In force: 53 min
Issued by: the Storm Prediction Center

All 35 counties

Clay County, AR, Craighead County, AR, Fulton County, AR, Greene County, AR, Lawrence County, AR, Randolph County, AR, Sharp County, AR, Alexander County, IL, Johnson County, IL, Pulaski County, IL, Union County, IL, Ballard County, KY, Carlisle County, KY, Fulton County, KY, Hickman County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dunklin County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Reynolds County, MO, Ripley County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Wayne County, MO, Dyer County, TN, Lake County, TN, Obion County, TN

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.6 hours before the alert went out and 204 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: 449 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -67 m²/s²
0-3 km storm-relative helicity: -30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jul 6, 3:50 AM CDT	Severe Thunderstorm Watch	SPC	Benton, Carroll, Crawford, Madison, Sebastian, Washington	5 hr
Jul 6, 5:18 AM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Crawford, Madison, Washington	117 min
Jul 6, 11:01 AM CDT	Mesoscale Discussion	SPC	Clay, Fulton, Randolph, Sharp	59 min
Jul 6, 12:10 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Cleburne, Craighead, Crittenden, Cross, Faulkner and 15 more	6 hr
Jul 6, 2:34 PM CDT	Mesoscale Discussion	SPC	Clay, Mississippi	56 min
Jul 5, 7:05 PM CDT	Mesoscale Discussion	SPC	Bond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more	55 min
Jul 5, 9:10 PM CDT	Severe Thunderstorm Watch	SPC	Bond, Christian, Clark, Clay, Clinton, Coles and 18 more	4 hr
Jul 5, 9:29 PM CDT	Mesoscale Discussion	SPC	Bureau, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more	61 min
Jul 5, 11:14 PM CDT	Mesoscale Discussion	SPC	Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 13 more	91 min
Jul 5, 11:44 PM CDT	Mesoscale Discussion	SPC	Bond, Calhoun, Clark, Clay, Clinton, Coles and 26 more	91 min
Jul 6, 6:50 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 19 more	4 hr
Jul 6, 9:00 AM CDT	Mesoscale Discussion	SPC	Adams, Brown, Calhoun, Cass, Champaign, Christian and 28 more	60 min
Jul 6, 2:53 PM CDT	Mesoscale Discussion	SPC	Bond, Champaign, Christian, Clark, Clay, Clinton and 33 more	37 min
Jul 6, 3:25 PM CDT	Severe Thunderstorm Watch	SPC	Bond, Champaign, Christian, Clark, Clay, Coles and 30 more	8 hr
Jul 6, 1:35 PM CDT	Mesoscale Discussion	SPC	Adair, Allen, Anderson, Barren, Bourbon, Boyle and 50 more	25 min
Jul 6, 1:50 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Allen, Anderson, Barren, Bourbon, Boyle and 57 more	6 hr
Jul 6, 5:40 PM CDT	Severe Thunderstorm Watch	SPC	Bath, Bell, Boyd, Breathitt, Carter, Clay and 32 more	5 hr
Jul 5, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	Andrew, Atchison, Buchanan, Holt, Nodaway, Worth	6 hr
Jul 6, 1:16 AM CDT	Mesoscale Discussion	SPC	Andrew, Atchison, Buchanan, Holt, Nodaway, Worth	119 min
Jul 6, 2:45 AM CDT	Mesoscale Discussion	SPC	Audrain, Bates, Benton, Boone, Buchanan, Caldwell and 33 more	2 hr
Jul 6, 3:10 AM CDT	Severe Thunderstorm Watch	SPC	Barton, Bates, Benton, Boone, Buchanan, Caldwell and 30 more	5 hr
Jul 5, 7:40 PM CDT	Mesoscale Discussion	SPC	Carter, Johnson, Unicoi	65 min

Nearby

Mesoscale Discussions in Missouri, 2004 Mesoscale Discussions in Arkansas, 2004 Mesoscale Discussions in Illinois, 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.