Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 122, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Feb 21, 1997, 7:21 AM CST for Madison County, Alabama. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 21, 1997, 7:21 AM CST (13:21 UTC)
- Expired
- Feb 21, 1997, 8:15 AM CST
- In force
- 54 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Madison County, AL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 21, 4:45 AM CST | Tornado Watch | SPC | 6 hr |
| Feb 21, 7:00 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 1.4 hours before the alert went out and 152 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
- 133 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 392 m²/s²
- 0-3 km storm-relative helicity
- 598 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 5:08 AM CST | Tornado Warning | BMX | Lamar, Pickens | 52 min |
| Feb 21, 5:51 AM CST | Tornado Warning | BMX | Marion | 69 min |
| Feb 21, 5:57 AM CST | Severe Thunderstorm Warning | BMX | Pickens | 48 min |
| Feb 21, 6:00 AM CST | Tornado Warning | BMX | Fayette, Lamar | 60 min |
| Feb 21, 6:05 AM CST | Severe Thunderstorm Warning | BMX | Winston | 55 min |
| Feb 21, 6:11 AM CST | Severe Thunderstorm Warning | BMX | Franklin | 64 min |
| Feb 21, 6:15 AM CST | Severe Thunderstorm Warning | BMX | Tuscaloosa | 60 min |
| Feb 21, 6:18 AM CST | Severe Thunderstorm Warning | BMX | Franklin | 57 min |
| Feb 21, 6:28 AM CST | Severe Thunderstorm Warning | BMX | Walker | 62 min |
| Feb 21, 6:32 AM CST | Severe Thunderstorm Warning | BMX | Colbert, Lauderdale, Lawrence | 58 min |
| Feb 21, 6:45 AM CST | Tornado Warning | BMX | Lawrence | 45 min |
| Feb 21, 6:56 AM CST | Severe Thunderstorm Warning | BMX | Cullman | 64 min |
| Feb 21, 7:10 AM CST | Severe Thunderstorm Warning | BMX | Limestone | 50 min |
| Feb 21, 7:24 AM CST | Severe Thunderstorm Warning | BMX | Morgan | 51 min |
| Feb 21, 7:53 AM CST | Severe Thunderstorm Warning | BMX | Jackson | 67 min |
| Feb 21, 8:04 AM CST | Severe Thunderstorm Warning | BMX | Greene | 56 min |
| Feb 21, 8:21 AM CST | Severe Thunderstorm Warning | BMX | Tuscaloosa | 54 min |
| Feb 21, 8:47 AM CST | Severe Thunderstorm Warning | BMX | Dallas | 43 min |
| Feb 21, 9:00 AM CST | Severe Thunderstorm Warning | BMX | Bibb | 45 min |
| Feb 21, 9:22 AM CST | Severe Thunderstorm Warning | BMX | Autauga | 38 min |
| Feb 21, 9:29 AM CST | Severe Thunderstorm Warning | BMX | Shelby | 46 min |
| Feb 21, 9:38 AM CST | Severe Thunderstorm Warning | BMX | Lowndes | 52 min |
| Feb 21, 9:57 AM CST | Severe Thunderstorm Warning | BMX | Autauga | 33 min |
| Feb 21, 10:12 AM CST | Tornado Warning | BMX | Coosa, Elmore | 48 min |
| Feb 21, 10:19 AM CST | Tornado Warning | BMX | Montgomery | 41 min |
| Feb 21, 10:31 AM CST | Severe Thunderstorm Warning | BMX | Talladega | 44 min |
| Feb 21, 10:36 AM CST | Severe Thunderstorm Warning | BMX | Lowndes | 39 min |
| Feb 21, 10:45 AM CST | Severe Thunderstorm Warning | BMX | Tallapoosa | 45 min |
| Feb 21, 10:57 AM CST | Tornado Warning | BMX | Montgomery | 48 min |
| Feb 21, 11:01 AM CST | Tornado Warning | BMX | Elmore | 29 min |
| Feb 21, 11:15 AM CST | Severe Thunderstorm Warning | BMX | Chambers, Lee | 45 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1997Every severe thunderstorm warning in 1997
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.