Alert archive / Alabama / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 222, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Apr 14, 1998, 3:47 PM CDT for Jefferson County, Alabama. It was in force for 48 min. 5 reports 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 14, 1998, 3:47 PM CDT (20:47 UTC)
- Expired
- Apr 14, 1998, 4:35 PM CDT
- In force
- 48 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson County, AL
The radar
The Birmingham radar (KBMX), 44 km from the middle of the area, began a volume at 20:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 14, 4:03 PM CDT | Hail 1.25 | Fairfield, AL | |
| Apr 14, 4:04 PM CDT | Hail 1.75 | Ensley, AL | |
| Apr 14, 4:10 PM CDT | Hail 1.75 | Birmingham, AL | Golf ball size hail was reported along Beacon Parkway on Red Mountain. |
| Apr 14, 4:20 PM CDT | Hail 1 | Homewood, AL | Hail the size of quarters was reported in Homewood. |
| Apr 14, 4:30 PM CDT | Hail 2.5 | Vestavia Hills, AL | Tennis ball size hail was reported by an off duty weather service employee. |
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 nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.8 hours before the alert went out and 43 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
- 500 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 251 m²/s²
- 0-3 km storm-relative helicity
- 259 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 14, 3:06 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 44 min |
| Apr 14, 3:28 PM CDT | Severe Thunderstorm Warning | BMX | Elmore | 32 min |
| Apr 14, 3:29 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 61 min |
| Apr 14, 3:46 PM CDT | Severe Thunderstorm Warning | BMX | Macon, Tallapoosa | 49 min |
| Apr 14, 3:56 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 19 min |
| Apr 14, 4:10 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun | 50 min |
| Apr 14, 4:15 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 45 min |
| Apr 14, 4:32 PM CDT | Severe Thunderstorm Warning | BMX | Macon | 33 min |
| Apr 14, 4:58 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 47 min |
| Apr 14, 5:54 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 46 min |
| Apr 14, 6:03 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 47 min |
| Apr 14, 6:13 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 62 min |
| Apr 14, 6:45 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 65 min |
| Apr 14, 6:49 PM CDT | Severe Thunderstorm Warning | BMX | St. Clair | 51 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.