Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 83, NWS Mobile, AL

June 14, 1989Chambers County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 14, 1989, 3:35 PM CDT for Chambers County, Alabama. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1989, 3:35 PM CDT (20:35 UTC)
Expired
Jun 14, 1989, 4:30 PM CDT
In force
55 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Chambers 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, 8.6 hours before the alert went out and 169 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 1989-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1521 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 1989-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
1521 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 142038
SVRMGM
ALC017-142130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
335 PM CDT WED JUN 14 1989
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH ALABAMA
          ...CHAMBERS
 
AT 235 PM CDT WEATHER RADAR AT MONTGOMERY SHOWED A SEVERE THUNDERSTORM
SOUTHWEST AND NORTHWEST OF LAFAYETTE MOVING NORTHEAST AT ABOUT 40 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Jun 14, 11:10 AM CDT, 4 hours 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1110 AM CDT WED JUN 14 1989

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 THIS AFTERNOON
   FOR ALL SOUTHEAST MISSISSIPPI COASTAL COUNTIES...

AT 1105 AM CDT MOBILE RADAR SHOWED SCATTERED SHOWERS LIGHT TO MODERATE
WITH ISOLATED STRONG THUNDERSTORMS OVER SOUTHEAST MISSISSIPPI AND
EXTREME SOUTHWEST ALABAMA. THE STRONGEST STORMS WERE IN PEARL RIVER
COUNTY OF MISSISSIPPI AND SOUTH WASHINGTON COUNTY OF SOUTHWEST ALABAMA.
THE STORMS WERE MOVING NORTHEAST AT 30 MPH.

PERSONS IN OR NEAR THE WATCH AREA SHOULD REMAIN ON THE ALERT FOR CHANGING
WEATHER CONDITIONS AND TAKE NECEASSARY PRECAUTIONS WHEN SEVERE WEATHER
IS SIGHTED.  THE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...
DANGEROUS LIGHTNING... HEAVY RAINFALL... AND SMALL SIZE HAIL AS THEY
MOVE ACROSS THE AREA.
>
LISTEN TO NOAA WEATHER RADIO, COMMERICAL RADIO OR TV FOR LATER
STATEMENTS ON THIS WEATHER PROBLEM AS IT MOVES ACROSS SOUTHEAST
MISSISSIPPI AND SOUTHWEST ALABAMA.
Special weather statement, Jun 14, 12:37 PM CDT, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1235 PM CDT WED JUN 14 1989

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM THIS
AFTERNOON  FOR ALL SOUTHEAST MISSISSIPPI COUNTIES...

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM THIS AFTERNOON
WASHINGTON...CLARKE...MONROE...AND CONECUH COUNTIES OF SOUTHEAST ALABAMA

AT 1230 PM CDT MOBILE RADAR SHOWED SCATTERED STRONG THUNDERSTORMS OVER
OVER SOUTHEAST MISSISSIPPI AND EXTREME SOUTHWEST ALABAMA. THE STRONGEST
STORMS WERE CLARKE AND MONROE COUNTIES OF SOUTHEAST ALABAMA.

PERSONS IN OR NEAR THE WATCH AREAS SHOULD REMAIN ON THE ALERT FOR CHANGING
WEATHER CONDITIONS AND TAKE NECEASSARY PRECAUTIONS WHEN SE8VERE WEATHER
IS SIGHTED.
Special weather statement, Jun 14, 12:42 PM CDT, 2 hours 53 minutes before
SPECIAL WEATHER STATEMENT....CORRECTION
NATIONAL WEATHER SERVICE MOBILE AL
1235 PM CDT WED JUN 14 1989

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM THIS
AFTERNOON  FOR ALL SOUTHEAST MISSISSIPPI COUNTIES...

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM THIS AFTERNOON
WASHINGTON...CLARKE...MONROE...AND CONECUH COUNTIES OF SOUTHEAST ALABAMA

AT 1230 PM CDT MOBILE RADAR SHOWED SCATTERED STRONG THUNDERSTORMS OVER
SOUTHEAST MISSISSIPPI AND EXTREME SOUTHWEST ALABAMA. THE STRONGEST
STORMS WERE ALONG THE CLARKE MONROE COUNTY LINE IN SOUTHEAST ALABAMA.

PERSONS IN OR NEAR THE WATCH AREAS SHOULD REMAIN ON THE ALERT FOR CHANGING
WEATHER CONDITIONS AND TAKE NECEASSARY PDRECAUTIONS WHEN SEVERE WEATHER
IS SIGHTED.
Special weather statement, Jun 14, 1:30 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
130 PM CDT WED JUN 14 1989

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM THIS
AFTERNOON  FOR ALL SOUTHEAST MISSISSIPPI COUNTIES...

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM THIS AFTERNOON
WASHINGTON...CLARKE...MONROE...AND CONECUH COUNTIES OF SOUTHWEST ALABAMA

AT 115 PM CDT MOBILE RADAR SHOWED SCATTERED STRONG THUNDERSTORMS OVER
SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA MOVING TO THE NORTH AT
15 MPH. NONE OF THESE STORMS WERE SEVERE...HOWEVER CONDITIONS REMAIN
FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT.

PERSONS IN OR NEAR THE WATCH AREAS SHOULD REMAIN ON THE ALERT FOR CHANGING
WEATHER CONDITIONS AND TAKE NECEASSARY PRECAUTIONS WHEN SEVERE WEATHER
IS SIGHTED.
Special weather statement, Jun 14, 2:40 PM CDT, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
240 PM CDT WED JUN 14 1989

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM THIS EVENING FOR
ALL SOUTHEAST MISSISSIPPI COUNTIES...

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 600 PM THIS AFTERNOON FOR
WASHINGTON...CLARKE...MONROE...AND CONECUH COUNTIES OF SOUTHWEST ALABAMA

AT 230 PM CDT MOBILE RADAR SHOWED SCATTERED STRONG THUNDERSTORMS OVER
SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA MOVING TO THE NORTH AT
15 MPH. NONE OF THESE STORMS WERE SEVERE...HOWEVER CONDITIONS REMAIN
FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT.

PERSONS IN OR NEAR THE WATCH AREAS SHOULD REMAIN ON THE ALERT FOR CHANGING
WEATHER CONDITIONS GAND TAKE NECEASSARY PRECAUTIONS WHEN SEVERE WEATHER
IS SIGHTED.

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.