Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 31, NWS Mobile, AL

April 12, 1994Macon County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 12, 1994, 4:06 PM CDT for Macon County, Alabama. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 4:06 PM CDT (21:06 UTC)
Expired
Apr 12, 1994, 4:49 PM CDT
In force
43 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Macon County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.1 hours before the alert went out and 152 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 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 210 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 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 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
210 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 122118
SVRMGM
ALC087-122215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
406 PM CDT TUE APR 12 1994

THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION......

IN SOUTH ALABAMA

   ...MACON COUNTY

AT 400 PM CDT RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM 10 MILES
SOUTH OF TUSKEGEE IN SOUTH MACON COUNTY...MOVING NORTHEAST 20MPH.

AT 430 PM CDT THIS STORM SHOULD BE 5 MILES EAST OF TUSKEGEE.
PERSONS IN THE MENTIONED AREAS CAN EXPECT LARGE HAIL...POSSIBLE
DAMAGING WINDS AND DANGEROUS LIGHTNING.


WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 12, 3:17 PM CDT, 49 minutes before
MSZ077-080-122115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
317 PM CDT TUE APR 12 1994

...STRONG THUNDERSTORM CLUSTER MOVING INTO SOUTHEAST MISSISSIPPI...

AT 315 PM THE MOBILE RADAR INDICATED A STRONG THUNDERSTORM CLUSTER
CENTERED ABOUT 15 MILES SOUTH-SOUTHWEST OF PICAYUNE MISSISSIPPI.  THE
STORMS WERE MOVING TOWARD THE NORTHEAST AT 25 MPH AND WILL MOVE ALONG
THE PEARL-RIVER AND HANCOCK COUNTY LINE DURING THE NEXT HOUR.
 :
RESIDENTS OF SOUTHERN PEARL-RIVER AND NORTHERN HANCOCK COUNTY CAN EXPECT
GUSTY WINDS...DANGEROUS LIGHTNING...TORRENTIAL RAINFALL AND POSSIBLY
SOME HAIL AS THESE THUNDERSTORMS PASS.

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.