Alert archive / Alabama / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 21, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 29, 1989, 1:20 PM CST for Walker County, Alabama. It was in force for 40 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
- Mar 29, 1989, 1:20 PM CST (19:20 UTC)
- Expired
- Mar 29, 1989, 2:00 PM CST
- In force
- 40 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Walker County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 29, 1:40 PM CST | Thunderstorm Wind 0 | Walker, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 7.3 hours before the alert went out and 101 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
- 914 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBHM 291919
SVRBHM
ALC127-292000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
120 PM CST WED MAR 29 1989
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 200 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH ALABAMA
...WALKER
AT 119 PM CST...A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM SOUTHEAST
FAYETTE COUNTY SOUTHWARD THROUGH CENTRAL TUSCALOOSA COUNTY...AND WAS
MOVING EAST NEAR 35 MILES AN HOUR. THESE THUNDERSTORMS WILL MOVE INTO
PARTS OF WALKER COUNTY DURING THE NEXT HALF HOUR.
TREES HAVE BEEN REPORTED BLOWN DOWN IN PARTS OF SOUTHERN FAYETTE
COUNTY WITH THESE THUNDERSTORMS DURING THE PAST HALF HOUR.
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 CHyANGING WEATHER CONDITIONS.The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 12:46 PM CST | Severe Thunderstorm Warning | BMX | Tuscaloosa | 44 min |
| Mar 29, 1:11 PM CST | Severe Thunderstorm Warning | BMX | Bibb, Hale | 49 min |
| Mar 29, 1:35 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 55 min |
| Mar 29, 2:33 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 27 min |
| Mar 29, 2:44 PM CST | Severe Thunderstorm Warning | BMX | Chilton, St. Clair, Shelby | 46 min |
| Mar 29, 3:40 PM CST | Severe Thunderstorm Warning | BMX | Calhoun | 65 min |
| Mar 29, 3:40 PM CST | Severe Thunderstorm Warning | BMX | Clay | 65 min |
| Mar 29, 4:01 PM CST | Severe Thunderstorm Warning | BMX | Cherokee | 59 min |
| Mar 29, 4:29 PM CST | Severe Thunderstorm Warning | BMX | Cleburne, Randolph | 61 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1989Every severe thunderstorm warning in 1989
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.