Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 75, NWS Mobile, AL

June 8, 1989Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 8, 1989, 10:41 AM CDT for Mobile County, Alabama. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jun 8, 1989, 10:41 AM CDT (15:41 UTC)
Expired
Jun 8, 1989, 11:30 AM CDT
In force
49 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.7 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 12:00Z on 1989-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2984 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 1989-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 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
2984 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
522 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
4.9
Supercell composite
26.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 081542
SVRMOB
ALC097-081630-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1041 AM CDT THU JUN 8 1989
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHWEST ALABAMA
          ...CENTRAL MOBILE
 
AT 1039 AM WEATHER SERVICE RADARS INDICATED A SEVERE THUNDERSTORM 3
MILES NORTH OF THE MOBILE AIRPORT MOVING TOWARD THE EAST NORTHEAST
AT 25 MPH.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
 
RAPIDLY CHANGING WEATHER CONDITIONS.

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 8, 5:10 AM CDT, 5 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND MARINE STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
505 AM CDT THU JUN 8 1989

...TORNADO WATCH 435 CANCELED FOR SOUTHEAST MISSISSIPPI AND
   THE ADJACENT COASTAL WATERS...
...TORNADO WATCH 436 IN EFFECT UNTIL 800 AM CDT FOR SOUTHWEST
   ALABAMA AND THE ADJACENT COASTAL WATERS...
...SPECIAL MARINE WARNING IN EFFECT UNTIL 615 AM FROM GULFPORT
   MISSISSIPPI TO PERDIDO BAY ALABAMA...
AT 505 AM MOBILE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
EXTENDING FROM WEEKS BAY ALABAMA TO 10 MILES SOUTH OF DAUPHIN ISLAND.
THIS LINE OF STORMS WAS MOVING TO THE EAST AT 25 MILES AN HOUR AND
MAY PRODUCE STRONG WINDS AND ROUGH SEAS.

OTHER THUNDERSTORMS COVERED MOST OF SOUTHWEST ALABAMA AND THE WESTERN
FLORIDA PANHANDLE.  THUNDERSTORMS WERE SCATTERED OVER SOUTHEAST
MISSISSIPPI.
Special weather statement, Jun 8, 5:27 AM CDT, 5 hours 14 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
525 AM CDT THU JUN 8 1989

...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 6 AM CDT FOR THE
SOUTH PORTIONS OF ESCAMBIA AND SANTA ROSA COUNTIES OF FLORIDA...

...A TORNADO WATCH IS IN EFFECT UNTIL 8 AM CDT THIS THURSDAY MORNING
FOR PORTIONS OF SOUTH ALABAMA...NORTHWEST FLORIDA...AND THE ADJACENT
COASTAL WATERS. THE WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHWEST
FLORIDA. ESCAMBIA...SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON
...AND HOLMES...

AT 530 AM CDT...A SOLID LINE OF THUNDERSTORMS STRETCHED FROM NORTH
ESCAMBIA COUNTY OF FLORIDA SOUTH AND SOUTHWEST TO GULF SHORES ALABAMA.
THIS LINE WAS MOVING RAPIDLY EAST. THE LINE WAS PART OF AN EXTENSIVE
RAIN AREA THAT COVERED MOST OF THE NORTH CENTRAL GULF COAST AND THE
ADJACENT GULF OF MEXICO. THE RAIN AREA WAS SPREADING NORTHEAST AND EAST
OVER THE REMAINDER OF SOUTH ALABAMA AND NORTHWEST FLORIDA.
Special weather statement, Jun 8, 7:30 AM CDT, 3 hours 11 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
730 AM CDT THU JUN 8 1989

...A TORNADO WATCH IS IN EFFECT UNTIL 8 AM CDT THIS FOR PORTIONS OF
SOUTH ALABAMA...NORTHWEST FLORIDA...AND THE ADJACENT COASTAL WATERS.
THE WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA.
ESCAMBIA...SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON...AND
HOLMES.

AT 730 SCATTERED THUNDERSTORMS WERE PART OF AN EXTENSIVE RAIN SYSTEM
WHICH BLANKETED MUCH OF THE NORTH CENTRAL GULF COAST STATES AND THE
ADJACENT GULF OF MEXICO. SOME OF THESE THUNDERSTORMS ARE CAPABLE OF
PRODUCING VERY HEAVY RAINFALL...STRONG GUSTY WINDS...AND FREQUENT
LIGHTNING.
 COVERED MUCH OF THE NORTH CENTRAL GULF STATES AND ADJACENT WATERS.
THE AREA WAS SPREADING NORTHEAST AND EAST ACROSS THE REMAINDER OF
SOUTH ALABAMA AND NORTHWEST FLORIDA.
Special weather statement, Jun 8, 7:35 AM CDT, 3 hours 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION
NATIONAL WEATHER SERVICE PENSACOLA FL
730 AM CDT THU JUN 8 1989

...A TORNADO WATCH IS IN EFFECT UNTIL 8 AM CDT FOR PORTIONS OF SOUTH
ALABAMA...NORTHWEST FLORIDA...AND THE ADJACENT COASTAL WATERS. THE
WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA. ESCAMBIA...
SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON...AND HOLMES.

AT 730 AM CDT...SCATTERED THUNDERSTORMS WERE PART OF AN EXTENSIVE RAIN
AREA WHICH BLANKETED MUCH OF THE NORTH CENTRAL GULF COAST STATES AND
THE ADJACENT GULF OF MEXICO. SOME OF THESE THUNDERSTORMS ARE CAPABLE OF
PRODUCING VERY HEAVY RAINFALL...STRONG GUSTY WINDS...AND FREQUENT
LIGHTNING.
Special weather statement, Jun 8, 8:52 AM CDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
840 AM CDT THU JUN 8 1989

...A TORNADO WATCH IS IN EFFECT UNTIL 2 PM CDT FOR BALDWIN AND MOBILE
COUTIES ALABAMA AND ADJACENT COASTAL WATERS.

AT 830 AM CDT...SCATTERED THUNDERSTORMS WERE PART OF AN EXTENSIVE RAIN
AREA WHICH COVERS MUCH OF EXTREME SOUTHEAST MISSISSIPPI...SOUTH ALABAMA
...THE WEST 2/3 OF THE FLORIDA PANHANDLE AND ADJACENT COSATAL WATERS.

SOME OF THE HEAVIER STORMS WILL PRODUCE VERY HEAVY RAINFALL WITH SOME
STREET FLOODING...STRONG GUSTY WINDS...AND FREQUENT LIGHTNING.
Special weather statement, Jun 8, 9:15 AM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND MARINE STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
915 AM CDT THU JUN 8 1989

...A TORNADO WATCH IS IN EFFECT FOR SOUTHEAST MISSISSIPPI AND
   SOUTHWEST ALABAMA AND THE MISSISSIPPI AND ALABAMA COASTAL
   WATERS UNTIL 2 PM CDT...

AT 910 PM THE MOBILE RADAR INDICATED NUMEROUS SHOWERS AND STRONG
THUNDERSTORMS COVERING ALL OF SOUTHWEST ALABAMA.  THUNDERSTORMS
WERE MORE SCATTERED OVER SOUTHEAST MISSISSIPPI.  ALL THE STORMS
WERE MOVING TOWARD THE NORTHEAST AT 25 MPH.

FURTHER TO THE WEST...OVER LOUISIANA AND SOUTH MISSISSIPPI...A VERY
INTENSE LINE OF THUNDERSTORMS FROM JUST EAST OF MCCOMB MISSISSIPPI
TO THE COAST EAST OF LAKE CHARLES WAS MOVING TOWARD TH;E EAST.
SEVERAL TORNADOES HAVE BEEN REPORTED WITH THIS LINE.

RESIDENTS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA SHOULD
REMAIN ALERT FOR THE POSSIBLITY OF SEVERE WEATHER TODAY.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 8:09 PM CDTSevere Thunderstorm WarningMOBHouston66 min
Jun 8, 9:46 AM CDTTornado WarningMOBBaldwin29 min
Jun 8, 10:17 AM CDTTornado WarningMOBBaldwin28 min
Jun 8, 11:09 AM CDTTornado WarningMOBBaldwin36 min
Jun 8, 1:26 PM CDTSevere Thunderstorm WarningMOBMobile49 min
Jun 8, 1:43 PM CDTSevere Thunderstorm WarningMOBBaldwin47 min
Jun 8, 2:16 PM CDTSevere Thunderstorm WarningMOBEscambia44 min
Jun 8, 2:30 PM CDTTornado WarningMOBBaldwin45 min
Jun 8, 3:41 PM CDTFlash Flood WarningMOBMobile4 hr
Jun 8, 4:48 PM CDTTornado WarningMOBBaldwin27 min
Jun 8, 6:45 PM CDTTornado WarningMOBBaldwin45 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.