Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 223, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Apr 21, 1997, 7:04 PM CDT for Winston County, Alabama. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 21, 1997, 7:04 PM CDT (00:04 UTC)
- Expired
- Apr 21, 1997, 8:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Winston County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 21, 7:40 PM CDT | Hail 0.88 | Haleyville, AL | Nickel size hail was reported at Forkville, in the northwest part of the county. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 21, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.1 hours before the alert went out and 121 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
- 912 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1376 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 55 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.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 7:20 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 55 min |
| Apr 21, 7:20 PM CDT | Severe Thunderstorm Warning | BMX | Limestone | 55 min |
| Apr 21, 7:32 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 43 min |
| Apr 21, 10:38 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun | 67 min |
| Apr 21, 11:17 PM CDT | Severe Thunderstorm Warning | BMX | Cleburne | 43 min |
| Apr 22, 1:03 AM CDT | Severe Thunderstorm Warning | BMX | Shelby | 57 min |
| Apr 22, 1:12 AM CDT | Severe Thunderstorm Warning | BMX | Talladega | 48 min |
| Apr 22, 1:33 AM CDT | Severe Thunderstorm Warning | BMX | Clay | 57 min |
| Apr 22, 1:54 PM CDT | Severe Thunderstorm Warning | BMX | Franklin | 66 min |
| Apr 22, 2:02 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Hale, Marengo, Sumter | 48 min |
| Apr 22, 2:13 PM CDT | Severe Thunderstorm Warning | BMX | Colbert | 62 min |
| Apr 22, 2:30 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, Walker | 50 min |
| Apr 22, 2:40 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 50 min |
| Apr 22, 2:42 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 48 min |
| Apr 22, 2:45 PM CDT | Tornado Warning | BMX | Bibb | 35 min |
| Apr 22, 2:51 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Dallas, Lowndes | 49 min |
| Apr 22, 2:55 PM CDT | Tornado Warning | BMX | Shelby | 35 min |
| Apr 22, 3:03 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 47 min |
| Apr 22, 3:14 PM CDT | Tornado Warning | BMX | Dallas | 46 min |
| Apr 22, 3:18 PM CDT | Severe Thunderstorm Warning | BMX | Coosa, Talladega | 47 min |
| Apr 22, 3:25 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Montgomery | 45 min |
| Apr 22, 3:31 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 49 min |
| Apr 22, 3:35 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Lowndes | 50 min |
| Apr 22, 3:39 PM CDT | Severe Thunderstorm Warning | BMX | Clay | 46 min |
| Apr 22, 3:52 PM CDT | Tornado Warning | BMX | Lowndes | 48 min |
| Apr 22, 4:00 PM CDT | Tornado Warning | BMX | DeKalb | 30 min |
| Apr 22, 4:02 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Montgomery | 48 min |
| Apr 22, 4:10 PM CDT | Severe Thunderstorm Warning | BMX | Chambers, Randolph | 50 min |
| Apr 22, 4:15 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 50 min |
| Apr 22, 4:17 PM CDT | Severe Thunderstorm Warning | BMX | Bullock, Macon | 48 min |
| Apr 22, 4:26 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 49 min |
| Apr 22, 4:27 PM CDT | Tornado Warning | BMX | Chambers | 48 min |
| Apr 22, 4:46 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 49 min |
| Apr 22, 5:02 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 48 min |
| Apr 22, 5:14 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 46 min |
| Apr 22, 6:06 PM CDT | Severe Thunderstorm Warning | BMX | Dallas | 49 min |
| Apr 22, 6:17 PM CDT | Tornado Warning | BMX | Dallas | 43 min |
| Apr 22, 6:26 PM CDT | Tornado Warning | BMX | Lowndes | 49 min |
| Apr 22, 6:53 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Elmore, Montgomery | 52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.