Alert archive / Alabama / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 76, NWS Birmingham, AL

July 28, 1986Marshall County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 28, 1986, 9:26 PM CDT for Marshall County, Alabama. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 28, 1986, 9:26 PM CDT (02:26 UTC)
Expired
Jul 28, 1986, 10:30 PM CDT
In force
64 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marshall County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 28, 9:30 PM CDTThunderstorm Wind 0Marshall, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 2.4 hours before the alert went out and 183 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 1986-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1157 joules per kilogram.LCLLFCEL10008507005003002001001 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 1986-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
1157 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1419 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 
TTAAOO KHSV 290226
SVRHSV
ALC095-290330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
926 PM CDT MON JUL 28 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN NORTH ALABAMA
          ..MARSHALL

THE SEVERE THUNDERSTORM WARNING FOR MADISON COUNTY HAS EXPIRED.
 
AT 925 PM CDT HUNTSVILLE RADAR INDICATED A SEVERE THUNDERSTORM
NORTHWEST OF GUNTERSVILLE IN MARSHALL COUNTY ALABAMA.
 
MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH.
 
THE MARSHALL COUNTY SHERIFFS DEPARTMENT REPORTED A MOBILE HOME
OVERTURNED AT UNION GROVE ALABAMA AT APPROXIMATELY 923PM CDT.
 
THUNDERSTORMS REACHED FROM SOUTHEAST MORGAN COUTNY TO SOUTH OF
FORT PAYNE IN DE KALB COUNTY OF THE TENNESSEE VALLEY REGION OF
NORTH ALABAMA. THESE STORMS WERE ALSO MOVING SOUTHEAST AT 25 MPH.
 
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH, LARGE HAIL, AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER,
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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

Local storm report, Jul 28, 3:41 PM CDT, 5 hours 45 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
340 PM CDT MON JUL 28 1986

...AT 215 PM CDT WIND BLEW ROOF OFF A AMOCO STATION IN WEST END
   SECTION OF BIRMINGHAM. REPORTED BY PUBLIC.
...AT 215 PM CDT MINOR DAMAGE TO SCOREBOARD AT LEGION FIELD IN WEST
   END SECTION OF BIRMINGHAM. ALSO A SMALL TRAILER WAS BLOWN INTO
   AT CAR ON GROUNDS SURROUNDING LEGION FIELD. REPORTED BY PUBLIC.
Special weather statement, Jul 28, 4:15 PM CDT, 5 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
415 PM CDT MON JUL 28 1986

RADAR SHOWED STRONG THUNDERSTORMS OVER CENTRAL ALABAMA AT 410
PM. THE THE STORMS WERE IN A BAND THAT EXTENDED FROM BENTON TO
PINEAPPLE.

THE THUNDERSTORMS WERE MOVING SOUTHWEST AT AROUND 15 MPH AND WILL BE
PRODUCING STRONG GUSTY WINDS...INTENSE LIGHTNING...TORRENTIAL RAIN...
AND SOME SMALL HAIL.

DEVAUGHN
Special weather statement, Jul 28, 4:27 PM CDT, 4 hours 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
430 PM CDT MON JUL 28 1986

       ...THUNDERSTORMS MOVING INTO MARENGO COUNTY...

HEAVY THUNDERSTORMS WILL MOVE THROUGH MARGENGO COUNTY BET)WEEN
430 AND 530 PM CDT. MOVEMENT OF THESE STORMS WAS TO THE SOUTH AT
ABOUT 20 MPH. PERSONS IN MARENGO COUNTY CAN EXPECT HEAVY RAIN..
INTENSE LIGHTING..AND STRONG GUSTY WINDS AS THESE STRONG THUNDERSTORMS
MOVE THROUGH.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 8:01 PM CDTSevere Thunderstorm WarningBMXJackson, Madison59 min
Jul 28, 8:22 PM CDTSevere Thunderstorm WarningBMXMadison, Marshall68 min
Jul 28, 9:40 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah65 min
Jul 28, 9:40 PM CDTSevere Thunderstorm WarningBMXCullman65 min
Jul 28, 10:10 PM CDTSevere Thunderstorm WarningBMXSt. Clair65 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1986Every severe thunderstorm warning in 1986

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.