Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Mobile, AL

January 21, 1993Baldwin County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 21, 1993, 1:53 AM CST for Baldwin County, Escambia County, Alabama. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jan 21, 1993, 1:53 AM CST (07:53 UTC)
Expired
Jan 21, 1993, 2:45 AM CST
In force
52 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Baldwin County, AL, Escambia County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 7.9 hours before the alert went out and 224 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 00:00Z on 1993-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1993-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 333 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
333 m²/s²
0-3 km storm-relative helicity
455 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 KMOB 210754
SVRMOB
ALC003-053-210845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
153 AM CST THU JAN 21 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ALABAMA
 
   ...NORTHERN BALDWIN COUNTY...WESTERN ESCAMBIA COUNTY
 
AT 145 AM WEATHER SERVICE RADARS INDICATED TWO SEVERE
THUNDERSTORMS...ONE NEAR PERDIDO AND ANOTHER NEAR LATHAM...BOTH IN
BALDWIN COUNTY. THE STORMS WERE MOVING TOWARD THE EAST-NORTHEAST AT 30
MPH AND WILL MOVE INTO ESCAMBIA COUNTY ALABAMA WITHIN THE NEXT FEW
MINUTES.
 
WIND DAMAGE IS LIKELY WITH THESE THUNDERSTORMS.
 
 
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 FLOO&D 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, Jan 20, 8:45 PM CST, 5 hours 8 minutes before
ALZ013-015-016-MSZ014-013-210545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
845 PM CST WED JAN 20 1993

...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST MISSISSIPPI AND
SOUTHWEST ALABAMA FOR TONIGHT... HEAVY RAINFALL HAS CONTINUED ACROSS
SOUTHEAST MISSISSIPPI THIS EVENING
AND HAS MOVED INTO MOBILE COUNTY OF SOUTHWEST ALABAMA AROUND 7 PM.
SOUTHEAST MISSISSIPPI...
..HARRISON COUNTY..NEARLY 6 INCHES OF RAIN TO 830 PM. BILOXI RIVER AT 14
FEET. TCHOUTACABOUFFA RIVER 8.8 FEET.
..PEARL RIVER COUNTY..HIGHWAYS 11 AND 43 HAVE RUNNING WATER ACROSS THEM.
  SEVERAL OTHER ROADS ARE CLOSED.
..STONE COUNTY..SEVERAL COUNTY ROADS CLOSED DUE TO HIGH WATER.
..PERRY COUNTY..SOME ROADS HAVE WATER ON THEM.
SOUTHWEST ALABAMA...
..MOBILE COUNTY..MOBILE AIRPORT HAS HAD OVER 3 INCHES OF RAIN..NEARLY
  2 INCHES SINCE 7 PM.  NO REPORTS OF WATER PROBLEMS HAVE BEEN RECEIVED.

THE HEAVY RAINFALL WILL PROBABLY CONTINUE FOR THE NEXT SEVERAL HOURS
UNTIL THE COLD FRONT NEAR THE MISSISSIPPI RIVER MOVES EASTWARD ACROSS
THE REGION. THE FRONT IS EXPECTED TO BE NEAR MOBILE AROUND SUNRISE.

MOST FLASH FLOOD DEATHS OCCUR WHEN AUTOMOBILES ARE DRIVEN INTO FLOODED
AREAS. STAY IN...AND IF YOU ARE IN A FLOOD PRONE AREA WATCH FOR RAPIDLY
RISING WATER.
&
Special weather statement, Jan 21, 1:21 AM CST, 32 minutes before
ALZ013-015-016-MSZ014-013-210930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
121 AM CST THU JAN 21 1993

...FLASH FLOOD WATCH CONTINUES FOR SOUTHEAST MISSISSIPPI AND SOUTHWEST
ALABAMA THIS MORNING...

...UNSETTLED WEATHER WILL CONTINUE THIS MORNING...

AT 2 MINUTES PAST MIDNIGHT A WARM FRONT PASSED THE MOBILE AIRPORT...
THE TEMPERATURE WARMED RAPIDLY TO 68 DEGREES.  AT 28 MINUTES PAST
MIDNIGHT...THE FRONT MOVED SOUTH ACROSS THE AIRPORT AS A COLD FRONT
AND THE TEMPERATURE FELL RAPIDLY TO 61 DEGREES.  THEN...AT 1250 AM
THE FRONT MOVED NORTH OF THE AIRPORT AGAIN AS A WARM FRONT AND THE
TEMPERATURE WARMED TO 68 AGAIN AT 100 AM...A TOTAL CHANGE OF 14 DEGREES
IN AN HOUR.

THIS UNSETTLED CONDITION IS TRIGGERING STRONG THUNDERSTORMS THAT HAVE
PRODUCED EXCESSIVE RAINFALL.  RAIN AT MOBILE TOTALLED 4.62 INCHES FOR
WEDNESDAY.

THESE THUNDERSTORMS AND THE POTENTIAL FOR FLOODING WILL CONTINUE UNTIL
THE PASSAGE OF A COLD FRONT LATER TODAY.  THE GROUND IS SATURATED AND
STREAMS IN THE AREA ARE AT BANKFULL OR HIGHER AND ANY ADDITONAL HEAVY
RAINFALL WILL ONLY AGGRAVATE THE SITUATION.  RESIDENTS LIVING IS AREAS
SUBJECT TO FLOODING SHOULD REMAIN ALERT FOR RISING WATER.  MOTORISTS
SHOULD EXERCISE EXTREME CAUTION IN DRIVING ON ROADS WITH WATER ON THEM.

THE THUNDERSTORMS HAVE THE POTENTIAL TO ALSO PRODUCE...IN ADDITION TO
DANGEROUS LIGHTNING...STRONG GUSTY WINDS...AND POSSIBLE HAIL.  IF THE
STORMS CONTINUE TO INCREASE IN INTENSITY...WARNINGS MAY BE ISSUED LATER
THIS MORNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 4:12 AM CSTFlash Flood WarningMOBMobile3 hr
Jan 21, 4:29 AM CSTSevere Thunderstorm WarningMOBBaldwin, Escambia46 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1993Every severe thunderstorm warning in 1993

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.