Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 113, NWS Birmingham, AL

May 14, 1994Greene County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 14, 1994, 7:17 PM CDT for Greene County, Alabama. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
May 14, 1994, 7:17 PM CDT (00:17 UTC)
Expired
May 14, 1994, 8:00 PM CDT
In force
43 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Greene County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 0.3 hours before the alert went out and 70 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 1994-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1291 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 1994-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
1291 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
998 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KBHM 150018
SVRBMX
ALC063-150100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
717 PM CDT SAT MAY 14 1994
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ALABAMA
 
   ...NORTHERN GREENE COUNTY
 
AT 715 PM CDT NATIONAL WEATHER SERVICE RADARS SHOWED A SEVERE
THUNDERSTORM OVER NORTHERN GREENE COUNTY IN THE PLEASANT RIDGE AND
MANTUA AREAS. THE STORM WAS MOVING NORTHEAST AT 15 TO 20 MILES AN HOUR
WILL CONTINUE TO EFFECT THE MENTIONED AREAS.
 
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 Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 7:01 PM CDTSevere Thunderstorm WarningBMXBlount44 min
May 14, 7:22 PM CDTSevere Thunderstorm WarningBMXTuscaloosa68 min
May 14, 7:31 PM CDTSevere Thunderstorm WarningBMXJefferson59 min
May 14, 7:38 PM CDTSevere Thunderstorm WarningBMXEtowah, St. Clair67 min
May 14, 7:43 PM CDTSevere Thunderstorm WarningBMXGreene37 min
May 14, 7:48 PM CDTSevere Thunderstorm WarningBMXDeKalb, Jackson, Marshall57 min
May 14, 7:48 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Shelby42 min
May 14, 8:00 PM CDTSevere Thunderstorm WarningBMXHale45 min
May 14, 8:19 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee56 min
May 14, 8:32 PM CDTSevere Thunderstorm WarningBMXShelby43 min
May 14, 9:13 PM CDTSevere Thunderstorm WarningBMXTalladega62 min
May 15, 1:28 PM CDTSevere Thunderstorm WarningBMXMadison, Morgan62 min
May 15, 4:21 PM CDTSevere Thunderstorm WarningBMXEtowah31 min
May 15, 4:21 PM CDTSevere Thunderstorm WarningBMXCalhoun54 min
May 15, 4:38 PM CDTSevere Thunderstorm WarningBMXCherokee, Cleburne48 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.