Alert archive / Alabama / Tornado Warnings in 1993
Tornado Warning 1, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at Apr 15, 1993, 2:28 PM CDT for Jefferson County, Alabama. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Apr 15, 1993, 2:28 PM CDT (19:28 UTC)
- Expired
- Apr 15, 1993, 3:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson County, AL
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 7.5 hours before the alert went out and 78 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
- 4 J/kg
- Mixed-layer CIN
- -351 J/kg
- Mixed-layer LCL
- 1580 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 218 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 151930 TORBHM ALC073-152000- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 228 PM CDT THU APR 15 1993 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH ALABAMA ...NORTHERN JEFFERSON COUNTY AT 227 PM A POSSIBLE TORNADO WAS REPORTED IN THE GRAYSVILLE AREA OF JEFFERSON COUNTY MOVING NORTHEAST. 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. &
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Apr 15, 12:00 PM CDT, 2 hours 28 minutes before
ALZ004>008-011-013-151900-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1200 PM CDT THU APR 15 1993
...LINE OF THUNDERSTORMS DEVELOPS OVER WESTERN ALABAMA...
WEATHER RADAR AT 1155 AM INDICATED A NARROW LINE OF SHOWERS AND
THUNDERSTORMS ACROSS WESTERN. THE LEADING EDGE OF THE LINE EXTENDED
FROM NEAR MUSCEL SHOALS/COLBERT COUNTY SOUTHWARD THROUGH FAYETTE/FAYETTE
COUNTY AND MOUNT HEBRON/GREENE COUNTY. THE STRONGEST THUNDERSTORM IN THE
LINE WAS LOCATED OVER HEBRON IN WESTERN GREENE COUNTY. THE STORM
PRODUCED NICKEL SIZED HAIL OVER NORTHERN SUMTER COUNTY JUST AFTER
1130 PM. THE STORM WEAKENED TO A DEGREE AS IT MOVED INTO GREENE COUNTY.
THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
PERSONS ACROSS WESTERN AND CENTRAL ALABAMA SHOULD REMAIN ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY FOR QUICK ACTION IF
WARNINGS ARE ISSUED.Special weather statement, Apr 15, 12:03 PM CDT, 2 hours 25 minutes before
ALZ004>008-011-013-151900-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1200 PM CDT THU APR 15 1993
...LINE OF THUNDERSTORMS DEVELOPS OVER WESTERN ALABAMA...
WEATHER RADAR AT 1155 AM INDICATED A NARROW LINE OF SHOWERS AND
THUNDERSTORMS ACROSS WESTERN. THE LEADING EDGE OF THE LINE EXTENDED
FROM NEAR MUSCEL SHOALS/COLBERT COUNTY SOUTHWARD THROUGH FAYETTE/FAYETTE
COUNTY AND MOUNT HEBRON/GREENE COUNTY. THE STRONGEST THUNDERSTORM IN THE
LINE WAS LOCATED OVER HEBRON IN WESTERN GREENE COUNTY. THE STORM
PRODUCED NICKEL SIZED HAIL OVER NORTHERN SUMTER COUNTY JUST AFTER
1130 PM. THE STORM WEAKENED TO A DEGREE AS IT MOVED INTO GREENE COUNTY.
THE THUNDERSTORMS WERE MOVING 6NORTHEAST AT 35 MILES AN HOUR.
PERSONS ACROSS WESTERN AND CENTRAL ALABAMA SHOULD REMAIN ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY FOR QUICK ACTION IF
WARNINGS ARE ISSUED.Special weather statement, Apr 15, 12:45 PM CDT, 1 hour 43 minutes before
ALZ004>006-008-009-151845-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1245 PM CDT THU APR 15 1993
...STRONG THUNDERSTORM CONTINUES OVER WESTERN ALABAMA...
WEATHER RADAR AT 1240 PM INDICATED A NARROW LINE OF SHOWERS AND
THUNDERSTORMS ACROSS WESTERN ALABAMA. THE LINE EXTENDED SOUTHWARD
FROM NEAR NAUVOO/WALKER COUNTY SOUTHWARD THROUGH DEMOPOLIS/MARENGO
COUNTY. THE STRONGEST THUNDERSTORM IN THE LINE WAS LOCATED OVER
NORTHERN TUSCALOOSA AND SOUTHEASTERN FAYETTE COUNTY.
THE STORM PRODUCED SMALL HAIL OVER SOUTHWESTERN TUSCALOOSA COUNTY AT
1230 PM. MOVEMENT WAS NORTH NORTHEAST 30 MILES AN HOUR. THIS PATH
WILL TAKE THE THUNDERSTORM INTO EXTREME EASTERN FAYETTE AND WESTERN
WALKER COUNTY BY 145 PM.
PERSONS ACROSS WESTERN AND CENTRAL ALABAMA SHOULD REMAIN ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY FOR QUICK ACTION IF
WARNINGS ARE ISSUED.Special weather statement, Apr 15, 12:49 PM CDT, 1 hour 39 minutes before
ALZ004>006-008-009-151845-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1245 PM CDT THU APR 15 1993
...STRONG THUNDERSTORM CONTINUES OVER WESTERN ALABAMA...
WEATHER RADAR AT 1240 PM INDICATED A NARROW LINE OF SHOWERS AND
THUNDERSTORMS ACROSS WESTERN ALABAMA. THE LINE EXTENDED SOUTHWARD
FROM NEAR NAUVOO/WALKER COUNTY SOUTHWARD THROUGH DEMOPOLIS/MARENGO
COUNTY. THE STRONGEST THUNDERSTORM IN THE LINE WAS LOCATED OVER
NORTHERN TUSCALOOSA AND SOUTHEASTERN FAYETTE COUNTY.
THE STORM PRODUCED SMALL HAIL OVER SOUTHWESTERN TUSCALOOSA COUNTY AT
1230 PM. MOVEMENT WAS NORTH NORTHEAST 30 MILES AN HOUR. THIS PATH
WILL TAKE THE THUNDERSTORM INTO EXTREME EASTERN FAYETTE AND W>ESTERN
WALKER COUNTY BY 145 PM.
PERSONS ACROSS WESTERN AND CENTRAL ALABAMA SHOULD REMAIN ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY FOR QUICK ACTION IF
WARNINGS ARE ISSUED.Special weather statement, Apr 15, 2:09 PM CDT, 19 minutes before
ALZ010-011-012-014-017-018-152015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 209 PM CDT THU APR 15 1993 ....TORNADO WATCH FOR SOUTHCENTRAL AND SOUTHEAST ALABAMA UNTIL 800 PM THIS EVENING.... AT 200 PM...WEATHER SERVICE RADAR AT MONTGOMERY SHOWED A DEVELOPING LINE OF THUNDERSTORMS ACROSS WESTERN ALABAMA. THIS LINE STRETCHED FROM NORTHERN WILCOX COUNTY AND DALLAS COUNTY...NORTHWARD INTO NORTH ALABAMA AND WAS MOVING TO THE EAST AT 35 MILES AN HOUR. HEAVY RAINS...STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. THESE THUNDERSTORMS WILL BE AFFECTING THE CITY OF SELMA WITHIN HALF AN HOUR. ALL RESIDENTS SHOULD BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND STAY TUNED TO LOCAL TV OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 15, 2:11 PM CDT, 17 minutes before
ALZ010-011-012-014-017-018-152015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 209 PM CDT THU APR 15 1993 ....TORNADO WATCH FOR SOUTHCENTRAL AND SOUTHEAST ALABAMA UNTIL 800 PM THIS EVENING.... AT 200 PM...WEATHER SERVICE RADAR AT MONTGOMERY SHOWED A DEVELOPING LINE OF THUNDERSTORMS ACROSS WESTERN ALABAMA. THIS LINE STRETCHED FROM NORTHERN WILCOX COUNTY AND DALLAS COUNTY...NORTHWARD INTO NORTH ALABAMA AND WAS MOVING TO THE EAST AT 35 MILES AN HOUR. HEAVY RAINS...STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. THESE THUNDERSTORMS WILL BE AFFECTING THE CITY OF SELMA WITHIN HALF AN HOUR. ALL RESIDENTS SHOULD BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND STAY TUNED TO LOCAL TV OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 12:05 PM CDT | Severe Thunderstorm Warning | BMX | Greene | 25 min |
| Apr 15, 1:53 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Jefferson | 67 min |
| Apr 15, 2:31 PM CDT | Tornado Warning | BMX | Limestone | 44 min |
| Apr 15, 3:15 PM CDT | Severe Thunderstorm Warning | BMX | Talladega | 60 min |
| Apr 15, 4:29 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 46 min |
| Apr 15, 4:51 PM CDT | Severe Thunderstorm Warning | BMX | Cleburne | 54 min |
Nearby
Tornado Warnings in Alabama, 1993Every tornado warning in 1993Tornadoes in 1993
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.