Alert archive / Tennessee / Mesoscale Discussions in 2004
Mesoscale Discussion 443
The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2004, 3:12 AM CDT for 4 states. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Apr 23, 2004, 3:12 AM CDT (08:12 UTC)
- Expired
- Apr 23, 2004, 4:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 30 counties
Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lawrence County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, St. Francis County, AR, Woodruff County, AR, Fulton County, KY, Hickman County, KY, Dunklin County, MO, New Madrid County, MO, Pemiscot County, MO, Ripley County, MO, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 8.2 hours before the alert went out and 94 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.
- Mixed-layer CAPE
- 2009 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 913 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 13.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 7:10 PM CDT | Mesoscale Discussion | SPC | Boone, Franklin, Howard, Johnson, Logan, Madison and 5 more | 35 min |
| Apr 22, 7:50 PM CDT | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 10 more | 4 hr |
| Apr 22, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 25 more | 6 hr |
| Apr 22, 10:52 PM CDT | Mesoscale Discussion | SPC | Conway, Pope, Searcy, Stone, Van Buren | 53 min |
| Apr 22, 11:25 PM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Mississippi and 1 more | 65 min |
| Apr 22, 11:40 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 4 more | 6 hr |
| Apr 23, 12:54 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 25 more | 96 min |
| Apr 23, 7:33 AM CDT | Mesoscale Discussion | SPC | Craighead, Crittenden, Cross, Jackson, Lee, Poinsett and 2 more | 87 min |
| Apr 23, 10:37 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Fulton, Izard and 3 more | 113 min |
| Apr 23, 2:10 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Crawford, Sebastian, Washington | 6 hr |
| Apr 23, 6:01 PM CDT | Mesoscale Discussion | SPC | Crawford, Scott, Sebastian | 59 min |
| Apr 23, 12:51 PM CDT | Mesoscale Discussion | SPC | Barton, Bates, Benton, Camden, Cedar, Dade and 12 more | 114 min |
| Apr 23, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Barton, Cedar, Dade, Greene, Hickory and 8 more | 5 hr |
| Apr 23, 11:09 AM CDT | Mesoscale Discussion | SPC | Bedford, Bledsoe, Cannon, Cheatham, Coffee, Cumberland and 34 more | 2 hr |
Nearby
Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Missouri, 2004Every 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.