Alert archive / Alabama / Tornado Warnings in 1991

Tornado Warning 9, NWS Mobile, AL

April 29, 1991Lowndes County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 29, 1991, 11:13 AM CDT for Lowndes County, Alabama. It was in force for 62 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: Apr 29, 1991, 11:13 AM CDT (16:13 UTC)
Expired: Apr 29, 1991, 12:15 PM CDT
In force: 62 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Lowndes County, AL

What was reported inside it

Time	Report	Where	Remark
Apr 29, 12:00 PM CDT	Thunderstorm Wind 0	Lowndes, 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, 4.2 hours before the alert went out and 98 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1218 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 357 m²/s²
0-3 km storm-relative helicity: 397 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 10.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMGM 291616
TORMGM
ALC085-291715-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
1113 AM CDT MON APR 29 1991
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...NORTHERN LOWNDES COUNTY
 
AT 1113 AM CDT...RADAR INDICATED A POSSIBLE TORNADO JUST EAST OF
BENTON MOVING NORTHEAST AT 35 MILES AN HOUR.
 
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.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 29, 11:13 AM CDT	Tornado Warning	MOB	Clarke	32 min
Apr 29, 11:29 AM CDT	Severe Thunderstorm Warning	MOB	Autauga	46 min
Apr 29, 11:51 AM CDT	Tornado Warning	MOB	Montgomery	54 min
Apr 29, 12:49 PM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	56 min
Apr 29, 1:04 PM CDT	Severe Thunderstorm Warning	MOB	Butler	56 min
Apr 29, 1:28 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	62 min
Apr 29, 1:28 PM CDT	Severe Thunderstorm Warning	MOB	Macon	62 min
Apr 29, 2:35 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	55 min
Apr 29, 3:19 PM CDT	Tornado Warning	MOB	Baldwin	11 min

Nearby

Tornado Warnings in Alabama, 1991 Every tornado warning in 1991 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.