Alert archive / Alabama / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 166, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Apr 20, 1996, 11:53 AM CDT for Jefferson County, Alabama. It was in force for 52 min. 2 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 20, 1996, 11:53 AM CDT (16:53 UTC)
- Expired
- Apr 20, 1996, 12:45 PM CDT
- In force
- 52 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 20, 12:09 PM CDT | Tornado F0 | Birmingham, AL | |
| Apr 20, 12:09 PM CDT | Thunderstorm Wind 55 | Birmingham, AL |
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, 4.9 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
- 816 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 330 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 201653 SVRBHM ALC073-201745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 1153 AM CDT SAT APR 20 1996 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL ALABAMA ...JEFFERSON COUNTY AT 1150 AM RADAR INDICATED A SEVERE THUNDERSTORM OVER WESTERN JEFFERSON COUNTY NEAR THE BIRMINGPORT AND OAK GROVE AREAS. THE STORM WAS MOVING EAST AROUND 30 MPH...AND WILL MOVE THROUGH THE BIRMINGHAM METRO AREA BETWEEN 12 NOON AND 1230 PM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 8:09 AM CDT | Tornado Warning | BMX | Lauderdale | 66 min |
| Apr 20, 8:24 AM CDT | Severe Thunderstorm Warning | BMX | Limestone | 66 min |
| Apr 20, 8:42 AM CDT | Tornado Warning | BMX | Limestone | 63 min |
| Apr 20, 8:49 AM CDT | Tornado Warning | BMX | Lawrence | 56 min |
| Apr 20, 8:53 AM CDT | Tornado Warning | BMX | Jackson | 67 min |
| Apr 20, 8:59 AM CDT | Severe Thunderstorm Warning | BMX | Madison | 61 min |
| Apr 20, 9:40 AM CDT | Tornado Warning | BMX | Madison | 65 min |
| Apr 20, 9:47 AM CDT | Severe Thunderstorm Warning | BMX | Colbert | 58 min |
| Apr 20, 9:50 AM CDT | Tornado Warning | BMX | Colbert, Lauderdale | 55 min |
| Apr 20, 10:06 AM CDT | Severe Thunderstorm Warning | BMX | Morgan | 69 min |
| Apr 20, 10:21 AM CDT | Tornado Warning | BMX | Franklin | 69 min |
| Apr 20, 10:24 AM CDT | Tornado Warning | BMX | Jackson | 66 min |
| Apr 20, 11:32 AM CDT | Flash Flood Warning | BMX | Jackson | 3 hr |
| Apr 20, 11:33 AM CDT | Severe Thunderstorm Warning | BMX | Pickens | 27 min |
| Apr 20, 12:00 PM CDT | Tornado Warning | BMX | Jefferson | 45 min |
| Apr 20, 12:05 PM CDT | Flash Flood Warning | BMX | Limestone | 115 min |
| Apr 20, 12:06 PM CDT | Severe Thunderstorm Warning | BMX | Pickens, Sumter | 54 min |
| Apr 20, 12:09 PM CDT | Severe Thunderstorm Warning | BMX | Greene | 66 min |
| Apr 20, 12:24 PM CDT | Severe Thunderstorm Warning | BMX | St. Clair | 51 min |
| Apr 20, 12:32 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 28 min |
| Apr 20, 12:33 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 42 min |
| Apr 20, 12:36 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 54 min |
| Apr 20, 12:46 PM CDT | Severe Thunderstorm Warning | BMX | Hale, Tuscaloosa | 44 min |
| Apr 20, 12:55 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Talladega | 50 min |
| Apr 20, 1:11 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 64 min |
| Apr 20, 1:17 PM CDT | Severe Thunderstorm Warning | BMX | Clay, Cleburne | 58 min |
| Apr 20, 1:21 PM CDT | Severe Thunderstorm Warning | BMX | Perry | 54 min |
| Apr 20, 4:52 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 38 min |
| Apr 20, 5:17 PM CDT | Tornado Warning | BMX | Sumter | 28 min |
| Apr 20, 5:24 PM CDT | Tornado Warning | BMX | Greene | 36 min |
| Apr 20, 5:45 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 60 min |
| Apr 20, 6:00 PM CDT | Severe Thunderstorm Warning | BMX | Greene | 30 min |
| Apr 20, 6:09 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 66 min |
| Apr 20, 6:33 PM CDT | Severe Thunderstorm Warning | BMX | Hale | 57 min |
| Apr 20, 6:45 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 60 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1996Every severe thunderstorm warning in 1996
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.