Alert archive / Alabama / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 341, NWS Birmingham, AL

July 12, 1995Marengo County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 12, 1995, 7:12 PM CDT for Marengo County, Alabama. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1995, 7:12 PM CDT (00:12 UTC)
Expired
Jul 12, 1995, 7:45 PM CDT
In force
33 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 00:11 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 00:00Z, 0.2 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 00:00Z on 1995-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2032 joules per kilogram.LCLEL10008507005003002001001 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 1995-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
2032 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1890 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 130013 RRA
SVRBHM
ALC091-130045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
712 PM CDT WED JUL 12 1995
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ALABAMA
 
   ...MARENGO COUNTY
 
AT 712 PM...WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM OVER
SOUTHWEST MARENGO COUNTY...JUST NORTHEAST OF NANAFALIA. THIS STORM WAS
MOVING SOUTHWEST AT 10 MPH...AND WILL BE AFFECTING NANAFALIA BY 730 PM.
ANOTHER SEVERE STORM WAS LOCATED OVER NORTHEAST MARENGO COUNTY...
NEAR DAYTON...AND WILL BE MOVING ACROSS LINDEN BY 735 PM.  BOTH STORMS
WILL LIKELY PRODUCE STRONG WIND AND POSSIBLY DAMAGING WIND DURING THE
NEXT 30 MINUTES.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIA(NCES 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, Jul 12, 1:24 PM CDT, 5 hours 48 minutes before
ALZ058-121925-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
124 PM CDT WED JUL 12 1995

AT 120 PM CDT THE NATIONAL WEATHER SEVICE RADAR INDICATED A
THUNDERSTORM DEVELOPING RAPIDLY OVER NORTHERN CRENSHAW COUNTY NEAR
HIGHLAND HOME.  THIS THUDERSTORM WAS MOVING TO THE SOUTH WEST AT 15
MILES PER HOUR AND WILL BE EFFECTING THE GREENVILLE AREA WITHING THE
NEXT 30 TO 35 MINUTES.

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.

STRONG GUSTY WIND...DANGEROUS CLOUD TO GROUND LIGHTNING...VERY
HEAVY RAINFALL AND POSSIBLY SOME SMALL HAIL CAN BE EXPECTED WITH
THESE STORMS.
Special weather statement, Jul 12, 2:32 PM CDT, 4 hours 40 minutes before
ALZ042-044-058-068-122030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
232 PM CDT WED JUL 12 1995

AT 220 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN MONTGOMERY
INDICATED ISOLATED THUNDERSTORMS IN SOUTHERN ALABAMA.  THESE
THUNDERSTORMS WERE LOCATED JUST TO THE NORTHWEST OF MONTGOMERY IN
MONTGOMERY COUNTY... WEST OF PLEASANT HILL IN WESTERN LOWNDES
COUNTY...SOUTHCENTRAL CRENSHAW COUNTY JUST SOUTH OF LUVERNE...AND WEST
OF SAMSON IN WESTERN GENEVA COUNTY.  THESE THUNDERSTORMS WERE MOVING TO
THE SOUTHWEST AT 15 MILES PER HOUR.

HIGH WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...HEAVY RAIN... AND
SMALL HAIL IS POSSIBLE WITH THESE THUNDERSTORMS.

IF OUTSIDE WHEN THUNDERSTORMS ARE OCCURRING MOVE INTO A STRONG BUILDING
AND DO NOT USE TELEPHONES OF ELECTRICAL APPLIANCES UNTIL THE STORMS ARE
PAST.
Special weather statement, Jul 12, 3:22 PM CDT, 3 hours 50 minutes before
ALZ042-057-060-122125-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
322 PM CDT WED JUL 12 1995

AT 315 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN MONTGOMERY
INDICATED ISOLATED THUNDERSTORMS IN SOUTHERN LOWNDES COUNTY NEAR
BRAGGS...IN BUTLER COUNTY NEAR GEORGIANA...AND IN COVINGTON COUNTY NEAR
RED OAK.  THESE THUNDERSTORMS WERE MOVING TO THE SOUTHWEST AT 15 MPH.

THESE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAINFALL...
STRONG GUSTY WIND...FREQUENT CLOUD TO GROUND LIGHTNING...AND
POSSIBLY SOME HAIL.

STRONG GUSTY WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND
VERY HEAVY RAINFALL CAN BE EXPECTED WITH THESE STORMS.  MOTORISTS
SHOULD BE PREPARED FOR SUDDEN REDUCTIONS IN VISIBILITY IN AREAS
OF HEAVY RAIN. YOU SHOULD WATCH FOR PONDING ON AREA ROADWAYS AND
BE PREPARED FOR POSSIBLE HYDROPLANING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 9:03 PM CDTSevere Thunderstorm WarningBMXSumter27 min
Jul 13, 4:54 PM CDTSevere Thunderstorm WarningBMXJefferson, Shelby36 min
Jul 13, 5:12 PM CDTSevere Thunderstorm WarningBMXHale, Perry33 min
Jul 13, 5:42 PM CDTSevere Thunderstorm WarningBMXGreene, Tuscaloosa33 min
Jul 13, 5:44 PM CDTSevere Thunderstorm WarningBMXJefferson, Shelby31 min
Jul 13, 5:59 PM CDTSevere Thunderstorm WarningBMXPickens31 min
Jul 13, 6:16 PM CDTSevere Thunderstorm WarningBMXFayette, Tuscaloosa29 min
Jul 13, 6:27 PM CDTSevere Thunderstorm WarningBMXGreene33 min
Jul 13, 6:30 PM CDTSevere Thunderstorm WarningBMXPickens30 min
Jul 13, 6:53 PM CDTSevere Thunderstorm WarningBMXFayette37 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.