Alert archive / Alabama / Tornado Warnings in 1991
Tornado Warning 13, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at Apr 27, 1991, 6:45 PM CDT for Chilton County, Alabama. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Apr 27, 1991, 6:45 PM CDT (23:45 UTC)
- Expired
- Apr 27, 1991, 7:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Chilton County, AL
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 11.8 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
- 11 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 596 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 272346 TORBHM ALC021-280030- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 645 PM CDT SAT APR 27 1991 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH ALABAMA ...SOUTHERN CHILTON COUNTY AT 640 PM CDT RADAR INDICATED A POSSIBLE TORNADO IN EXTREME SOUTHERN CHILTON COUNTY WEST OF VERBENA AND MOUNTIAN CREEK. THE TORNADO WAS MOVING EAST AT 30 MPH. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND CPOVER YOUR HEAD WITH YOUR HANDS.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 2:44 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 31 min |
| Apr 27, 3:01 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 44 min |
| Apr 27, 3:08 PM CDT | Tornado Warning | BMX | Cullman | 37 min |
| Apr 27, 3:13 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson | 47 min |
| Apr 27, 3:18 PM CDT | Tornado Warning | BMX | Marshall | 57 min |
| Apr 27, 3:20 PM CDT | Tornado Warning | BMX | Blount | 40 min |
| Apr 27, 3:34 PM CDT | Severe Thunderstorm Warning | BMX | Etowah, St. Clair | 26 min |
| Apr 27, 4:08 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Etowah | 52 min |
| Apr 27, 4:12 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 48 min |
| Apr 27, 4:14 PM CDT | Severe Thunderstorm Warning | BMX | DeKalb | 61 min |
| Apr 27, 4:20 PM CDT | Severe Thunderstorm Warning | BMX | Cleburne | 40 min |
| Apr 27, 4:28 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 47 min |
| Apr 27, 4:42 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton | 48 min |
| Apr 27, 4:48 PM CDT | Tornado Warning | BMX | Bibb | 27 min |
| Apr 27, 4:58 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 32 min |
| Apr 27, 5:18 PM CDT | Tornado Warning | BMX | Chilton | 27 min |
| Apr 27, 5:43 PM CDT | Tornado Warning | BMX | Chilton | 32 min |
| Apr 27, 6:15 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 60 min |
Nearby
Tornado Warnings in Alabama, 1991Every tornado warning in 1991Tornadoes in 1991
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.