Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 30, NWS Mobile, AL

April 25, 1993Clarke County, Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 25, 1993, 11:46 PM CDT for Clarke County, Washington County, Alabama. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1993, 11:46 PM CDT (04:46 UTC)
Expired
Apr 26, 1993, 12:30 AM CDT
In force
44 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Clarke County, AL, Washington County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 4.8 hours before the alert went out and 169 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 1993-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 495 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 00:00Z on 1993-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
495 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1206 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 260449
SVRMOB
ALC025-129-260530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1146 PM CDT SUN APR 25 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ALABAMA
 
   ...CLARKE COUNTY...WASHINGTON COUNTY
 
AT 1140 PM THE MOBILE RADAR INDICATED TWO SEVERE THUNDERSTORMS...ONE
NEAR CHATOM IN WASHINGTON COUNTY AND ANOTHER 5 MILES NORTHWEST OF GROVE
HILL IN CLARKE COUNTY. BOTH STORMS WERE MOVING TOWARD THE EAST SOUTHEAST
AT 25 MPH.
 
THE WASHINGTON COUNTY STORM WILL MOVE OVER CHATOM IN THE NEXT FEW
MINUTES AND HEAD FOR THE AREA AROUND WAGARVILLE.  IN CLARKE
COUNTY...THAT THUNDERSTORM WILL PASS OVER GROVE HILL AND MOVE TOWARD
WHATLEY AND GOSPORT.
 
PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER IMMEDIATELY.
 
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 FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROADh.

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 25, 9:59 PM CDT, 1 hour 47 minutes before
ALZ013-260400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
956 PM CDT SUN APR 25 1993

...STRONG THUNDERSTORMS APPROACHING WASHINGTON AND CLARKE COUNTIES OF
ALABAMA...

A LINE OF STRONG THUNDERSTORMS MOVING TOWARD THE SOUTHEAST OUT OF EAST
CENTRAL MISSISSIPPI IS APPROACHING PORTIONS OF SOUTHWEST ALABAMA.
THESE THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE NORTHWEST PORTIONS OF
WASHINGTON AND CLARKE COUNTIES DURING THE NEXT COUPLE OF HOURS.

RESIDENTS IN THESE COUNTIES CAN EXPECT STRONG GUSTY WINDS...DANGEROUS
LIGHTINING...HEAVY RAINFALL AND POSSIBLE HAIL.

THE THUNDERSTORMS ARE LIKELY TO AFFECT OTHER SOUTHWEST ALABAMA COUNTIES
LATER THIS EVENING AND INTO THE EARLY MORNING HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 10:55 PM CDTSevere Thunderstorm WarningMOBWashington50 min
Apr 26, 1:25 AM CDTSevere Thunderstorm WarningMOBMobile65 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.