Alert archive / Alabama / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 433, NWS Birmingham, AL

October 27, 1995Marengo County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Oct 27, 1995, 2:45 PM CDT for Marengo County, Alabama. It was in force for 15 min.

The area

The counties it named.

The facts

Issued
Oct 27, 1995, 2:45 PM CDT (19:45 UTC)
Expired
Oct 27, 1995, 3:00 PM CDT
In force
15 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marengo County, AL

The radar

The Birmingham radar (KBMX), 140 km from the middle of the area, began a volume at 19:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.8 hours before the alert went out and 140 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 1995-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 276 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 12:00Z on 1995-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.19395878Sfc1 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
276 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 271946 RRA
SVRBHM
ALC091-272000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
245 PM CDT FRI OCT 27 1995
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ALABAMA
 
   ...SOUTHERN MARENGO COUNTY
 
AT 2:45 WEATHER RADAR INDICATED A SEVERE THUNDERSTORM NEAR VINELAND.
THIS STORM IS MOVING NORTHEAST AT 35 MPH. THIS STORM SHOULD MOVE ACROSS
THE EXTREME SOUTHEAST PORTION OF THE COUNTY FOR THE NEXT 15 MINUTES.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 27, 2:26 PM CDTSevere Thunderstorm WarningBMXChilton34 min
Oct 27, 2:40 PM CDTSevere Thunderstorm WarningBMXHale, Marengo35 min
Oct 27, 3:16 PM CDTSevere Thunderstorm WarningBMXAutauga, Elmore44 min
Oct 27, 3:30 PM CDTSevere Thunderstorm WarningBMXMontgomery30 min
Oct 27, 4:44 PM CDTSevere Thunderstorm WarningBMXLee46 min
Oct 27, 5:03 PM CDTTornado WarningBMXDallas42 min
Oct 27, 5:55 PM CDTSevere Thunderstorm WarningBMXBullock35 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; radar from the NEXRAD Level II archive.