Alert archive / Tennessee / Mesoscale Discussions in 2004
Mesoscale Discussion 1496
The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2004, 10:38 AM CDT for 6 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2004, 10:38 AM CDT (15:38 UTC)
- Expired
- Jul 4, 2004, 12:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 103 counties
Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Morgan County, AL, Winston County, AL, Arkansas County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, St. Francis County, AR, Woodruff County, AR, Fulton County, KY, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Webster County, MS, Yalobusha County, MS, Bedford County, TN, Benton County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Coffee County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Franklin County, TN, Gibson County, TN, Giles County, TN, Grundy County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Moore County, TN, Obion County, TN, Perry County, TN, Rutherford County, TN, Shelby County, TN, Smith County, TN, Stewart County, TN, Tipton County, TN, Warren County, TN, Wayne County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 3.6 hours before the alert went out and 71 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
- 2361 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 4, 11:35 AM CDT | Severe Thunderstorm Watch | SPC | Colbert, Franklin, Lauderdale, Marion | 4 hr |
| Jul 4, 1:31 PM CDT | Mesoscale Discussion | SPC | Blount, Calhoun, Cherokee, Cleburne, Colbert, Cullman and 19 more | 119 min |
| Jul 4, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | Blount, Colbert, Cullman, DeKalb, Etowah, Franklin and 11 more | 6 hr |
| Jul 4, 5:54 PM CDT | Mesoscale Discussion | SPC | Blount, Calhoun, Cherokee, DeKalb, Etowah, Jackson and 5 more | 66 min |
| Jul 4, 5:05 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Boone, Carroll, Crawford, Madison, Washington | 5 hr |
| Jul 4, 6:08 AM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Madison, Washington | 2 hr |
| Jul 4, 6:09 AM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Madison, Washington | 2 hr |
| Jul 4, 9:00 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Clay, Cleburne, Conway, Craighead and 28 more | 5 hr |
| Jul 4, 1:25 PM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Franklin, Johnson, Logan, Madison and 5 more | 2 hr |
| Jul 4, 11:24 AM CDT | Mesoscale Discussion | SPC | Boone, Breckinridge, Bullitt, Carroll, Crittenden, Daviess and 16 more | 3 hr |
| Jul 4, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Boyle, Breckinridge, Bullitt, Carroll, Daviess and 20 more | 6 hr |
| Jul 4, 3:04 PM CDT | Mesoscale Discussion | SPC | Breckinridge, Bullitt, Carroll, Daviess, Grayson, Hancock and 13 more | 116 min |
| Jul 3, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Atchison, Holt | 6 hr |
Nearby
Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Mississippi, 2004Mesoscale Discussions in Arkansas, 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.