Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 51, NWS Mobile, AL

April 4, 1989Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 4, 1989, 8:44 PM CDT for Mobile County, Alabama. It was in force for 61 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 4, 1989, 8:44 PM CDT (01:44 UTC)
Expired
Apr 4, 1989, 9:45 PM CDT
In force
61 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile 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 4, 8:50 PM CDTHail 0.75Mobile, AL
Apr 4, 9:29 PM CDTTornado F0Mobile, 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.7 hours before the alert went out and 152 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, Slidell Radar S, LA at 00:00Z on 1989-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2583 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, Slidell Radar S, LA at 00:00Z on 1989-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
2583 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
889 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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

Local storm report, Apr 4, 6:44 PM CDT, 2 hours before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
640 PM CDT TUE APR 4 1989

THE SHERIFFS OFFICE IN MILLRY ALABAMA...WASHINGTON COUNTY...REPORTED
A POSSIBLE TORNADO THAT PARTIALLY UNROOFED THE IGoA STORE.  ALSO...
LARGE HAIL THAT DAMAGED VEHICLES.  TIME OF OCCURRENCE 440 TO 500 PM.
Special weather statement, Apr 4, 6:47 PM CDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
645 PM CDT TUE APR 4 1989

...A TORNADO WATCH IS IN EFFECT FOR ESCAMBIA AND SANTA ROSA COUNTIES OF
NORTHWEST FLORIDA UNTIL 10 PM CDT THIS TUESDAY EVENING...

AT 630PM CDT...A SOLID LINE OF STRONG...POTENTIALLY SEVERE...
THUNDERSTORMS STRETCHED ACROSS SOUTHERN ALABAMA AND SOUTHEAST
MISSISSIPPI.  THE LINE EXTENDED FROM TROY IN PIKE COUNTY OF ALABAMA
SOUTHWESTWARD TO CITRONELLE IN NORTHERN MOBILE COUNTY...THEN ACROSS
SOUTHEAST MISSISSIPPI. THE LINE WAS MOVING TO THE SOUTHEAST ABOUT
15 MILES AN HOUR.

OTHER THUNDERSTORMS HAD DEVELOPED AHEAD OF THE LINE IN THE WESTERN
END OF NORTHWEST FLORIDA. THESE WERE MOVING NORTHEAST AT 35 MILES AN
HOUR.
Local storm report, Apr 4, 7:29 PM CDT, 1 hour 15 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
730 PM CDT TUE APR 4 1989

700 PM CDT...GREENE COUNTY MISSISSIPPI SHERIFFS OFFICE REPORTED DIME
TO QUARTER SIZE HAIL.

725 PM CDT...JACKSON PD IN CLARKE COUNTY ALABAMA REPORTED DIME SIZE
HAIL OCCURRED AROUND 645 PM.
Special weather statement, Apr 4, 7:53 PM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENSACOLA FL
750 PM CDT TUE APR 4 1989

...A TORNADO WATCH IS IN EFFECT FOR ESCAMBIA AND SANTA ROSA COUNTIES OF
NORTHWEST FLORIDA UNTIL 10 PM CDT THIS TUESDAY EVENING...

A LINE OF STRONG THUNDERSTORMS IS BEGINNING TO ENTER THE NORTHWEST
CORNER OF THE FLORIDA PANHANDLE. THIS LINE OF STORMS WILL BRING
PERIODS OF VERY HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING
...SMALL HAIL AND THE POSSIBILITY OF A TORNADO.

THE LINE WAS MOVING SOUTHEAST AT 15 MILES AN HOUR WHILE THE INDIVIDUAL
THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MILES AN HOUR.

THESE THUNDERSTORMS HAVE HAD A HISTORY OF BEING SEVERE WITH REPORTS OF
HAIL AND TORNADOES IN ALABAMA AND MISSISSIPPI. RESIDENTS OF NORTHWEST
FLORIDA SHOULD BE PREPARED TO TAKE IMMEDIATE SHELTER IF WARNINGS ARE
ISSUED AND STAY INFORMED OF THE DANGEROUS WEATHER SITUATION.
Local storm report, Apr 4, 8:33 PM CDT, 11 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
830 PM CDT TUE APR 4 1989

AT 758 PM CDT THE PD IN CITRONELLE IN MOBILE COUNTY REPORTED TREES
WERE BLOWN DOWN BETWEEN CITRONELLE AND THE WASHINGT$ON COUNTY LINE.
TIME OF OCCURRENCE WAS 735 PM.
Special weather statement, Apr 4, 8:40 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
840 PM CDT TUE APR 4 1989

...A TORNADO WATCH IS IN EFFECT FOR ESCAMBIA AND SANTA ROSA COUNTIES OF
NORTHWEST FLORIDA UNTIL 10 PM CDT THIS TUESDAY EVENING...

A 830PM CDT...NUMEROUS THUNDERSTORMS WERE IN A LINE ACROSS SOUTHERN
ALABAMA AND SOUTHEAST MISSISSIPPI. THE LINE STRETCHED FROM THE DOZIER
AND ANDALUSIA AREA OF ALABAMA TO WIGGINS AND MC HENRY MISSISSIPPI.

THE LINE WAS JUST BEGINNING TO MOVE INTO NORTH ESCAMBIA COUNTY OF
FLORIDA...WHERE SCATTERED THUNDERSTORMS HAD ALREADY DEVELOPED.

THE STRONGEST THUNDERSTORMS WERE INDICATED IN NEIGHBORING ESCAMBIA
COUNTY OF ALABAMA.

THE THUNDERSTORM LINE WAS MOVING SO)UTHEAST NEAR 15 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 7:04 PM CDTSevere Thunderstorm WarningMOBMobile56 min
Apr 4, 9:47 PM CDTSevere Thunderstorm WarningMOBBaldwin58 min
Apr 4, 8:20 PM CDTSevere Thunderstorm WarningMOBHancock40 min
Apr 4, 9:53 PM CDTSevere Thunderstorm WarningMOBJackson67 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.