Alert archive / Alabama / Tornado Warnings in 1991

Tornado Warning 14, NWS Mobile, AL

July 21, 1991Baldwin County, Alabama

NWS Mobile, AL issued this tornado warning at Jul 21, 1991, 11:30 AM CDT for Baldwin County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 21, 1991, 11:30 AM CDT (16:30 UTC)
Expired
Jul 21, 1991, 12:30 PM CDT
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Baldwin County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.5 hours before the alert went out and 192 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 1991-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2035 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 12:00Z on 1991-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
2035 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 211637 RRA
TORMOB
ALC003-211730-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO AND SPECIAL MARINE WARNING CORRECTED
NATIONAL WEATHER SERVICE MOBILE AL
1130 AM CDT SUN JUL 21 1991

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST ALABAMA

   ...SOUTHERN BALDWIN COUNTY AND ADJACENT COASTAL WATERS...
AT 1123 AM THE BALDWIN COUNTY 991 OPERATOR REPORTED THEY HAD SEVERAL
REPORTS OF WATERSPOUTS AND TORNADOES IN SOUTHEAST BALDWIN COUNTY
ALABAMA...IN THE VICINITY OF WOLF BAY.

AT 1125 AM MOBILE RADAR INDICATED A THUNDERSTORM NEAR ORANGE BEACH
ALABAMA. IT WAS MOVING TO THE WEST AT 15 MILES AN HOUR ALONG THE
COAST. THIS THUNDERSTORM MAY CONTINUE TO PRODUCE WATERSPOUTS AND
TORNADOES ACROSS GULF SHORES ALABAMA AND INTO BON SECOUR BAY AND
SOUTHERN MOBILE BAY.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

Nearby

Tornado Warnings in Alabama, 1991Every tornado warning in 1991Tornadoes in 1991

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.