Alert archive / Alabama / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 79, NWS Mobile, AL

April 21, 1995Coosa County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 21, 1995, 12:36 AM CDT for Coosa County, Alabama. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Apr 21, 1995, 12:36 AM CDT (05:36 UTC)
Expired
Apr 21, 1995, 1:45 AM CDT
In force
69 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Coosa County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 5.6 hours before the alert went out and 57 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, Birmingham, AL at 00:00Z on 1995-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1059 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, Birmingham, AL at 00:00Z on 1995-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.1939587897117Sfc1 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
1059 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
943 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 210542
SVRMGM
ALC037-210645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
1236 AM CDT FRI APR 21 1995
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ALABAMA
 
   ...COOSA COUNTY
 
... A TORNADO WATCH IS IN EFFECT FOR MOST OF CENTRAL AND SOUTH ALABAMA
UNTIL 700 AM CDT...
 
AT 1235 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN MONTGOMERY
INDICATED A LINE OF STRONG THUNDERSTORMS FROM JEFFERSON COUNTY EXTENDING
SOUTHWEST INTO CHOCTAW COUNTY. A SEVERE THUNDERSTORM IS MOVING INTO
COOSA COUNTY AND SHOULD REACH ROCKFORD BY 1250 AM CDT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 11:26 PM CDTSevere Thunderstorm WarningMOBChoctaw64 min
Apr 21, 12:12 AM CDTSevere Thunderstorm WarningMOBChoctaw48 min
Apr 21, 12:41 AM CDTSevere Thunderstorm WarningMOBDallas64 min
Apr 21, 1:12 AM CDTSevere Thunderstorm WarningMOBClarke, Washington63 min
Apr 21, 1:42 AM CDTSevere Thunderstorm WarningMOBAutauga63 min
Apr 21, 2:15 AM CDTSevere Thunderstorm WarningMOBCoosa, Elmore60 min
Apr 21, 2:18 AM CDTSevere Thunderstorm WarningMOBClarke42 min
Apr 21, 2:22 AM CDTSevere Thunderstorm WarningMOBMonroe68 min
Apr 21, 2:31 AM CDTSevere Thunderstorm WarningMOBWilcox59 min
Apr 21, 2:44 AM CDTSevere Thunderstorm WarningMOBMobile61 min
Apr 21, 2:45 AM CDTSevere Thunderstorm WarningMOBTallapoosa60 min
Apr 21, 3:07 AM CDTSevere Thunderstorm WarningMOBBaldwin68 min
Apr 21, 5:10 AM CDTSevere Thunderstorm WarningMOBBaldwin65 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1995Every severe thunderstorm warning in 1995

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.