Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 91, NWS Mobile, AL

June 19, 1989Lee County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 19, 1989, 8:46 AM CDT for Lee County, Alabama. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1989, 8:46 AM CDT (13:46 UTC)
Expired
Jun 19, 1989, 9:38 AM CDT
In force
52 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Lee 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, 1.8 hours before the alert went out and 176 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 1989-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1433 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 1989-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 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
1433 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 191348
SVRMGM
ALC081-191445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
846 AM CDT MON JUN 19 1989
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH ALABAMA
          ...LEE
 
WEATHER RADAR AT MONTGOMERY SHOWED A SEVERE THUNDERSTORM ABOUT 10
MILES EAST OF AUBURN MOVING EAST AT 25 MILES AN HOUR.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 3:00 AM CDTFlash Flood WarningMOBTallapoosa2 hr
Jun 19, 5:00 AM CDTFlash Flood WarningMOBTallapoosa2 hr
Jun 19, 5:35 AM CDTFlash Flood WarningMOBElmore, Montgomery115 min
Jun 19, 6:31 AM CDTFlash Flood WarningMOBCoosa, Tallapoosa2 hr
Jun 19, 9:03 AM CDTFlash Flood WarningMOBCoosa, Elmore, Tallapoosa117 min
Jun 19, 11:33 AM CDTFlash Flood WarningMOBMontgomery117 min
Jun 19, 1:11 PM CDTSevere Thunderstorm WarningMOBHouston64 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; the sounding from the Mesonet's radiosonde archive.