Alert archive / Alabama / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 64, NWS Birmingham, AL

August 17, 1987Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 17, 1987, 8:47 PM CDT for Pickens County, Alabama. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Aug 17, 1987, 8:47 PM CDT (01:47 UTC)
Expired
Aug 17, 1987, 9:30 PM CDT
In force
43 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Pickens County, AL

The radar

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

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 1.8 hours before the alert went out and 93 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 1987-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3282 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 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 1987-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
3282 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
32 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, Aug 17, 4:13 PM CDT, 4 hours 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
410 PM CDT MON AUG 17 1987

AT 405 PM CDT MONTGOMERYS WEATHER RADAR
SHOWED A LINE OF STRONG THUNDERSTORMS EXTENDING FROM JUST EAST
OF MONTGOMERY TO ANDALUSIA ALABAMA. THIS LINE WAS DRIFTING EAST.
A CLUSTER OF VERY STRONG THUNDERSTORMS WAS LOCATED OVER WILCOX COUNTY.
THESE THUNDERSTORMS WILL BE MOVING INTO LOWNDES AND BUTLER COUNTIES
SHORTLY.

THE STRONGER STORMS WILL BE PRODUCINGa STRONG GUSTY WINDS...EXTREMELY
DANGEROUS LIGHTNING...AND VERY HEAVY RAIN AS THEY DRIFT EAST.

CENTRAL AND SOUTH ALABAMA RESIDENTS SHOULD EXPECT MORE THUNDERSTORMS
TO DEVELOP DURING THE REST OF THE AFTERNOON.

HILTON...
Special weather statement, Aug 17, 7:39 PM CDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
 740 PM CDT MON AUG 17 1987

A LINE OF STRONG THUNDERSTORMS OVER EAST ALABAMA EXTENDS FROM JUST EAST
OF GADSDEN ALONG THE COOSA RIVER AND THROUGH THE WESTERN PORTION OF
TALLADEGA COUNTY. STRONGEST THUNDERSTORM WAS A FEW MILES WEST OF THE
CITY OF TALLADEGA. THIS LINE OF STORMS WAS MOVING TO THE EAST.

ANOTHER LINE OF THUNDERSTORMS OVER NORTHWEST ALABAMA REACHES FROM
VERNON AND SULLIGENT IN LAMAR COUNTY TO HAMILTON THEN OVER EXTREME
NORTHERN ALABAMA TO THE TENNESSEE LINE.

A THUNDERSHOWER WAS MOVING OVER THE CITY OF BIRMINGHAM AT 735 DRIFTING
SLOWLY TO THE SOUTHEAST.

ADDITIONAL THUNDERSHOWERS WERE IN THE CENTREVILLE AREA AND FR)OM JUST
EAST OF LINDEN IN MARENGO COUNTY THROUGH PORTIONS OF DALLAS AND
AUTAUGA COUNTIES.

VERY HEAVY RAIN CAN BE EXPECTED DUE TO THE SLOW MOVEMENT OF THESTORMS
Special weather statement, Aug 17, 8:14 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
815 PM CDT MON AUG 17 1987

THUNDERSTORMS WERE MOVING SLOWLY EASTWARD OVER TALLADEGA COUNTY.
ANOTHER THUNDERSTORM WAS JUST WEST OF ANNISTON.

THUNDERSTORMS WERE IN THE BIRMINGHAM AREA DRIFTING SLOWLY EAST.

ADDITIONAL SHOWERS AND THUNDERSHOWERS WERE OVER SHELBY COUNTY AND
FROM CENTREVILLE SOUTH INTO MARENGO COUNTY. VERY LITTLE
MOVEMENT WAS INDICATED.

A LINE OF STRONG THUNDERSTORMS OVER NORTHWEST ALABAMA CONTINUES TO
MOVE EAST AND AT 810 EXTENDS FROM MILLPORT AND VERNON IN LAMAR
COUNTY TO BRILLIANT IN MARION COUNTY.

OTHER THUNDERSTORMS IN MISSISSIPPI WILL MOVE INTO PICKENS COUNTY BY
AROUND 830.

VERY HEAVY RAINFALL..Q.GUSTY WINDS POSSIBLE HAIL AND DANGEROUS
LIGHTNING MAY ACCOMPANY THE LARGER STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 3:06 PM CDTSevere Thunderstorm WarningBMXChilton54 min
Aug 18, 3:46 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Marion44 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1987Every severe thunderstorm warning in 1987

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.