Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 90, NWS Mobile, AL

July 25, 1994Covington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 25, 1994, 1:02 PM CDT for Covington County, Alabama. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1994, 1:02 PM CDT (18:02 UTC)
Expired
Jul 25, 1994, 2:00 PM CDT
In force
58 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Covington County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 6.0 hours before the alert went out and 197 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 12:00Z on 1994-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 902 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 12:00Z on 1994-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
902 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
32 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 
WUUS1 KMGM 251804 RRA
SVRMGM
ALC039-251900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
102 PM CDT MON JUL 25 1994
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTH ALABAMA
 
   ...COVINGTON COUNTY
 
AT 105 PM CDT MONTGOMERY RADAR INDICATED A SEVERE THUNDERSTORM IN
CENTRAL COVINGTON COUNTY. THIS THUNDERSTORM WAS MOVING TO THE SOUTHEAST
AT 15 MPH.
 
 
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 ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 12:05 PM CDTSevere Thunderstorm WarningMOBBarbour55 min
Jul 25, 1:54 PM CDTSevere Thunderstorm WarningMOBBarbour66 min
Jul 25, 3:07 PM CDTSevere Thunderstorm WarningMOBButler68 min
Jul 25, 3:23 PM CDTSevere Thunderstorm WarningMOBMontgomery52 min
Jul 25, 3:43 PM CDTSevere Thunderstorm WarningMOBBullock, Crenshaw, Pike62 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1994Every severe thunderstorm warning in 1994

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.