Alert archive / Alabama / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 127, NWS Birmingham, AL

April 20, 1995Lamar County, Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 20, 1995, 6:32 PM CDT for Lamar County, Marion County, Alabama. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 20, 1995, 6:32 PM CDT (23:32 UTC)
Expired
Apr 20, 1995, 7:30 PM CDT
In force
58 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Lamar County, AL, Marion County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.5 hours before the alert went out and 142 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 12:00Z on 1995-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1995-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1511 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 20, 5:57 PM CDT, 35 minutes before
ALZ036>038-040>043-210100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
557 PM CDT THU APR 20 1995

....TORNADO WATCH IN EFFECT TILL 1100 CDT....

AT 545 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN MONTGOMERY
INDICATED A THUNDERSTORM EMBEDDED WITHIN A AREA OF RAINSHOWERS 25 MILES
WEST OF MONTGOMERY MOVING TO THE NORTH AT 25 TO 30 MILES PER HOUR.

STRONG GUSTY WIND...DANGEROUS CLOUD TO GROUND LIGHTNING...VERY
HEAVY RAINFALL AND POSSIBLY SOME SMALL HAIL CAN BE EXPECTED WITH
THESE STORMS.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 3:49 PM CDTSevere Thunderstorm WarningBMXLamar41 min
Apr 20, 4:05 PM CDTSevere Thunderstorm WarningBMXFayette, Marion40 min
Apr 20, 4:17 PM CDTTornado WarningBMXLamar23 min
Apr 20, 4:17 PM CDTTornado WarningBMXFayette, Marion43 min
Apr 20, 4:26 PM CDTSevere Thunderstorm WarningBMXWinston45 min
Apr 20, 5:06 PM CDTSevere Thunderstorm WarningBMXLawrence69 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.