Alert archive / Alabama / Tornado Warnings in 1990

Tornado Warning 10, NWS Mobile, AL

April 10, 1990Tallapoosa County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 10, 1990, 4:12 PM CDT for Tallapoosa County, Alabama. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Apr 10, 1990, 4:12 PM CDT (21:12 UTC)
Expired
Apr 10, 1990, 5:15 PM CDT
In force
63 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Tallapoosa County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.2 hours before the alert went out and 131 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-pSkew-T log-p diagram, Centreville/Bibb, AL at 12:00Z on 1990-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 12:00Z on 1990-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
6 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
830 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 102114
TORMGM
ALC101-123-102215-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
412 PM CDT TUE APR 10 1990
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  515 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...MONTGOMERY COUNTY...TALLAPOOSA COUNTY
 
WEATHER RADAR AT CENTREVILLE INDICATED POSSIBLE TORNADOES 30 MILES
SOUTH SOUTHWEST OF MONTGOMERY AND OVER THE WESTERN EDGE OF LAKE MARTIN
MOVING TOWARD THE EAST NORTHEAST AT 30 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 ZAVAILABLE...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.

IssuedProductOfficeCountiesLasted
Apr 10, 2:52 PM CDTSevere Thunderstorm WarningMOBBarbour68 min
Apr 10, 2:57 PM CDTTornado WarningMOBBarbour63 min
Apr 10, 3:03 PM CDTSevere Thunderstorm WarningMOBDallas57 min
Apr 10, 3:36 PM CDTSevere Thunderstorm WarningMOBWilcox69 min
Apr 10, 3:36 PM CDTSevere Thunderstorm WarningMOBAutauga69 min
Apr 10, 4:12 PM CDTTornado WarningMOBMontgomery63 min
Apr 10, 4:56 PM CDTSevere Thunderstorm WarningMOBLee64 min
Apr 10, 5:57 PM CDTSevere Thunderstorm WarningMOBCoffee, Covington63 min

Nearby

Tornado Warnings in Alabama, 1990Every tornado warning in 1990Tornadoes in 1990

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.