Alert archive / Alabama / Tornado Watches in 1998
Tornado Watch 322
The Storm Prediction Center issued this tornado watch at May 9, 1998, 7:00 PM CDT for 41 counties in Alabama; Dade County, Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 9, 1998, 7:00 PM CDT (00:00 UTC)
- Expired
- May 10, 1998, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 42 counties
Autauga County, AL, Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Colbert County, AL, Coosa County, AL, Cullman County, AL, Dallas County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Lowndes County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Montgomery County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Dade County, GA
Warnings issued inside it
24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:06 PM CDT | Tornado Warning | BMX | Tuscaloosa | 69 min |
| May 9, 7:33 PM CDT | Tornado Warning | BMX | Greene | 62 min |
| May 9, 7:39 PM CDT | Tornado Warning | BMX | Jefferson | 76 min |
| May 9, 7:41 PM CDT | Tornado Warning | BMX | Pickens | 34 min |
| May 9, 7:48 PM CDT | Tornado Warning | BMX | Sumter | 77 min |
| May 9, 7:57 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 48 min |
| May 9, 8:09 PM CDT | Tornado Warning | BMX | Tuscaloosa | 51 min |
| May 9, 8:24 PM CDT | Tornado Warning | BMX | Hale | 61 min |
| May 9, 8:29 PM CDT | Tornado Warning | BMX | Greene | 36 min |
| May 9, 8:35 PM CDT | Tornado Warning | BMX | Bibb | 65 min |
| May 9, 8:48 PM CDT | Tornado Warning | BMX | Shelby | 77 min |
| May 9, 8:53 PM CDT | Tornado Warning | BMX | Jefferson | 47 min |
| May 9, 9:22 PM CDT | Tornado Warning | BMX | Chilton | 63 min |
| May 9, 9:50 PM CDT | Tornado Warning | BMX | Coosa | 65 min |
| May 9, 9:55 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 50 min |
| May 9, 9:58 PM CDT | Severe Thunderstorm Warning | BMX | Talladega | 47 min |
| May 9, 10:12 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 63 min |
| May 9, 11:22 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 63 min |
| May 9, 11:24 PM CDT | Severe Thunderstorm Warning | BMX | Clay | 36 min |
| May 9, 11:39 PM CDT | Tornado Warning | BMX | Jefferson | 51 min |
| May 9, 11:53 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 47 min |
| May 9, 11:55 PM CDT | Severe Thunderstorm Warning | BMX | St. Clair | 50 min |
| May 10, 12:23 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 62 min |
| May 10, 12:34 AM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Talladega | 66 min |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.0 hours before the alert went out and 45 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
- 213 J/kg
- Mixed-layer CIN
- -309 J/kg
- Mixed-layer LCL
- 1398 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 355 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| May 9, 11:30 PM CDT | Tornado Watch | SPC | Chambers, Cleburne, Lee, Macon, Randolph, Russell | 6 hr |
| May 10, 1:00 AM CDT | Tornado Watch | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 28 more | 4 hr |
| May 10, 1:00 PM CDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baldwin, Ben Hill, Berrien and 45 more | 7 hr |
Nearby
Tornado Watches in Alabama, 1998Tornado Watches in Georgia, 1998Every tornado watch in 1998
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.