Alert archive / Mississippi / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 847
The Storm Prediction Center issued this severe thunderstorm watch at Aug 6, 2003, 3:45 PM CDT for 29 counties in Mississippi. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2003, 3:45 PM CDT (20:45 UTC)
- Expired
- Aug 6, 2003, 9:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Attala County, MS, Bolivar County, MS, Carroll County, MS, Clarke County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jones County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Leflore County, MS, Madison County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Winston County, MS, Yazoo County, MS
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 3:57 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 43 min |
| Aug 6, 4:19 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 41 min |
| Aug 6, 4:26 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Scott | 44 min |
| Aug 6, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale, Newton | 47 min |
| Aug 6, 5:11 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 44 min |
| Aug 6, 5:28 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 42 min |
| Aug 6, 5:29 PM CDT | Severe Thunderstorm Warning | JAN | Rankin | 46 min |
| Aug 6, 5:43 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 57 min |
| Aug 6, 5:58 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 57 min |
| Aug 6, 6:05 PM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 60 min |
| Aug 6, 6:25 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 45 min |
| Aug 6, 6:26 PM CDT | Severe Thunderstorm Warning | JAN | Clarke | 44 min |
| Aug 6, 6:55 PM CDT | Severe Thunderstorm Warning | MOB | Wayne | 35 min |
| Aug 6, 7:09 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 26 min |
| Aug 6, 7:12 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 58 min |
| Aug 6, 7:53 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 62 min |
| Aug 6, 8:11 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 59 min |
| Aug 6, 8:12 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 43 min |
| Aug 6, 8:56 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 39 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 8.8 hours before the alert went out and 66 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
- 3297 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 12:36 PM CDT | Mesoscale Discussion | SPC | Bolivar, Coahoma, Humphreys, Leflore, Quitman, Sharkey and 3 more | 114 min |
| Aug 6, 2:27 PM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 43 more | 2 hr |
| Aug 6, 5:37 PM CDT | Mesoscale Discussion | SPC | Attala, Bolivar, Carroll, Choctaw, Clarke, Hinds and 25 more | 83 min |
Nearby
Severe Thunderstorm Watches in Mississippi, 2003Every severe thunderstorm watch 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.