Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 90, NWS Mobile, AL

April 10, 1990Autauga County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 10, 1990, 3:36 PM CDT for Autauga County, Alabama. It was in force for 69 min. 2 reports 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 10, 1990, 3:36 PM CDT (20:36 UTC)
Expired
Apr 10, 1990, 4:45 PM CDT
In force
69 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Autauga County, AL

The radar

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

What was reported inside it

TimeReportWhereRemark
Apr 10, 3:45 PM CDTThunderstorm Wind 0Autauga, AL
Apr 10, 4:05 PM CDTThunderstorm Wind 0Autauga, 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, 8.6 hours before the alert went out and 66 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 102038
SVRMGM
ALC001-131-102145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
336 PM CDT TUE APR 10 1990
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...AUTAUGA COUNTY...WILCOX COUNTY
 
WEATHER RADAR AT MONTGOMERY IS SHOWING A LINE OF SEVERE THUNDERSTORMS
FROM WILCOX TO AUTAUGA COUNTIES. THE LINE IS MOVING SOUTHEAST AT ABOUT
25 MILES AN HOUR. THE THUNDERSTORMS ARE MOVING EAST AT ABOUT 30 MILES
AN HOUR. THESE THUNDERSTORMS WILL CROSS THROUGH CAMDEN AND PRATTVILLE.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHEALTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Apr 10, 2:28 PM CDT, 1 hour 8 minutes before
ALZ013-015-016-MSZ014-013-102130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
227 PM CDT TUE APR 10 1990

SEVERE THUNDERSTORM WATCH NUMBER 119 IS IN EFFECT UNTIL 7 PM FOR ALL
COUNTIES IN SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA.

A LINE OF THUNDERSTORMS WITH HEAVY RAIN EXTENDED FROM CHATTANOOGA
TENNESSEE TO BATON ROUGE LOUISIANA. THE HEAVIEST RAIN WAS JUST MOVING
INTO THE NORTHWEST CORNER OF WASHINGTON COUNTY ALABAMA. THE LIWNE WAS
MOVING TO THE SOUTHEAST AT 25 MPH.
Local storm report, Apr 10, 3:04 PM CDT, 32 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
300 PM CDT TUE APR 10 1990

250 PM...GROVE HILL STATE REOPRTS MARBLE SIZED HAIL IN
         MILLRY (WASHINGTON COUNTY ALABAMA)
Special weather statement, Apr 10, 3:18 PM CDT, 18 minutes before
ALZ013-015-016-MSZ014-013-102215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
317 PM CDT TUE APR 10 1990

SEVERE THUNDERSTORM WATCH NUMBER 119 REMAINS IN EFFECT FOR ALL
COUNTIES IN SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA.

AT 300 PM CDT THE MOBILE RADAR SHOWED A LINE OF THUNDERSTORMS WITH
HEAVY RAIN EXTENDING SOUTH FROM NEAR BIRMINGHAM TO NEW ORLEANS. THE
HEAVIEST RAIN WAS LOCATED ALONG THE LINE FROM NEAR THOMASVILLE ALABAMA
TO PICAYUNE MISSISSIPPI.  THE LINE WAS MOVING TO THE SOUTHEAST AT 25
MPH.

SMALL HAIL WAS REPORTED AT MILLRY IN NORTH WASHINGTON COUNTY AS THE
STORMS MOVED THROUGH AROUND 250 PM.

RESIDENTS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA SHOU%LD REMAIN
ALERT TO THE POSSIBILITY OF SEVERE WEATHER UNTIL THIS LINE OF STORMS
PASSES.

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, 4:12 PM CDTTornado WarningMOBTallapoosa63 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

Severe Thunderstorm Warnings in Alabama, 1990Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.