Alert archive / Alabama / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 51
The Storm Prediction Center issued this severe thunderstorm watch at Apr 7, 2004, 6:50 PM CDT for 17 counties in Alabama; Greene County, Mississippi. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2004, 6:50 PM CDT (23:50 UTC)
- Expired
- Apr 8, 2004, 12:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Autauga County, AL, Butler County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Dallas County, AL, Escambia County, AL, Greene County, AL, Hale County, AL, Lowndes County, AL, Marengo County, AL, Monroe County, AL, Perry County, AL, Sumter County, AL, Washington County, AL, Wilcox County, AL, Greene County, MS
The radar
The Mobile radar (KMOB), 133 km from the middle of the area, began a volume at 23:53 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 6:53 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 22 min |
| Apr 7, 7:04 PM CDT | Severe Thunderstorm Warning | MOB | Wilcox | 26 min |
| Apr 7, 7:10 PM CDT | Severe Thunderstorm Warning | BMX | Hale | 35 min |
| Apr 7, 7:22 PM CDT | Severe Thunderstorm Warning | BMX | Dallas | 38 min |
| Apr 7, 7:43 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Hale | 62 min |
| Apr 7, 7:58 PM CDT | Severe Thunderstorm Warning | BMX | Dallas | 17 min |
| Apr 7, 8:05 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 55 min |
| Apr 7, 8:35 PM CDT | Severe Thunderstorm Warning | BMX | Chilton, Coosa | 55 min |
| Apr 7, 8:42 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 48 min |
| Apr 7, 9:33 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 42 min |
| Apr 7, 10:18 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 42 min |
| Apr 7, 10:50 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 25 min |
| Apr 7, 11:11 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 34 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
Birmingham, AL (KBMX), launched 12:00Z, 11.8 hours before the alert went out and 179 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2172 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 4:47 PM CDT | Mesoscale Discussion | SPC | Greene, Pickens, Sumter | 28 min |
| Apr 7, 5:06 PM CDT | Mesoscale Discussion | SPC | Baldwin, Mobile | 114 min |
| Apr 7, 5:10 PM CDT | Severe Thunderstorm Watch | SPC | Attala, Bolivar, Carroll, Choctaw, Clay, Grenada and 20 more | 6 hr |
| Apr 7, 6:08 PM CDT | Mesoscale Discussion | SPC | Adams | 67 min |
Nearby
Severe Thunderstorm Watches in Alabama, 2004Severe Thunderstorm Watches in Mississippi, 2004Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.