Alert archive / Mississippi / Severe Thunderstorm Watches in 1999
Severe Thunderstorm Watch 113
The Storm Prediction Center issued this severe thunderstorm watch at Apr 3, 1999, 7:00 PM CST for 7 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 1999, 7:00 PM CST (01:00 UTC)
- Expired
- Apr 4, 1999, 12:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 75 counties
Crittenden County, AR, Mississippi County, AR, Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Williamson County, IL, Posey County, IN, Vanderburgh County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Union County, KY, Webster County, KY, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Scott County, MO, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Lafayette County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Panola County, MS, Pontotoc County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Union County, MS, Webster County, MS, Yalobusha County, MS, Carroll County, TN, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 7:19 PM CST | Severe Thunderstorm Warning | MEG | Mississippi | 31 min |
| Apr 3, 7:42 PM CST | Severe Thunderstorm Warning | MEG | Lauderdale | 33 min |
| Apr 3, 7:56 PM CST | Severe Thunderstorm Warning | MEG | Shelby | 34 min |
| Apr 3, 8:06 PM CST | Severe Thunderstorm Warning | MEG | Marshall | 49 min |
| Apr 3, 8:18 PM CST | Tornado Warning | MEG | Lafayette, Marshall | 32 min |
| Apr 3, 8:22 PM CST | Severe Thunderstorm Warning | JAN | Bolivar, Sunflower, Washington | 48 min |
| Apr 3, 8:43 PM CST | Severe Thunderstorm Warning | MEG | Benton | 47 min |
| Apr 3, 9:52 PM CST | Severe Thunderstorm Warning | MEG | Henderson | 33 min |
| Apr 3, 9:57 PM CST | Severe Thunderstorm Warning | PAH | Livingston, Lyon | 38 min |
| Apr 3, 10:14 PM CST | Severe Thunderstorm Warning | PAH | Caldwell, Crittenden | 36 min |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 1.0 hours before the alert went out and 56 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
- 25 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -231 m²/s²
- 0-3 km storm-relative helicity
- -324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 6:45 PM CDT | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 3 more | 5 hr |
| Apr 3, 8:30 PM CST | Severe Thunderstorm Watch | SPC | Adams, Amite, Attala, Carroll, Choctaw, Claiborne and 16 more | 4 hr |
| Apr 3, 10:15 PM CST | Severe Thunderstorm Watch | SPC | Itawamba, Tishomingo | 4 hr |
Nearby
Severe Thunderstorm Watches in Mississippi, 1999Severe Thunderstorm Watches in Tennessee, 1999Severe Thunderstorm Watches in Kentucky, 1999Every severe thunderstorm watch in 1999
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.