Alert archive / Alabama / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 112, NWS Birmingham, AL

August 16, 1986Cullman County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 16, 1986, 2:50 PM CDT for Cullman County, Alabama. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Aug 16, 1986, 2:50 PM CDT (19:50 UTC)
Expired
Aug 16, 1986, 3:30 PM CDT
In force
40 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Cullman 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 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, Centreville/Bibb, AL at 12:00Z on 1986-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1181 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, Centreville/Bibb, AL at 12:00Z on 1986-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
1181 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
725 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
28 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 16, 1:40 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
138 PM CDT SUN AUG 16 1986

A LINE OF STRONG THUNDERSTORMS WAS MOVING ACROSS NORTHWEST ALABAMA
EARLY IN THE AFTERNOON.

AT 135PM CDT...THE LINE OF THUNDERSTORMS WAS LOCATED FROM REFORM IN
PICKENS COUNTY, TO WINFIELD AND HACKLEBURG IN MARION COUNTY, THEN
INTO THE NORTHWEST PORTION OF THE STATE. THIS LINE OF THUNDERSTORMS
WAS MOVING TO THE EAST AT 25 TO 30 AND IS EXPECTED TO MOVE THROUGH
PICKENS, LAMAR, MARION AND FAYETTE COUNTIES...THEN INTO TUSCALOOSA,
WALKER AND WINSTON COUNTIES BY 2 PM CDT.

STRONG GUSTY WINDS, BRIEF BUT TORRENTIAL RAIN, AND FREQUENT LIGHTNING
WILL ACCOMPANY THESE STORMS.

WIND GUSTS TO 48 MPH WERE RECdORDED AT COLUMBUS MS. AND 42 MPH AT
TUPELO MS. AS THIS LINE OF THUNDERSTORMS MOVED THROUGH MISSISSIPPI
SHORTLY AFTER NOON.
Special weather statement, Aug 16, 2:48 PM CDT, 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
245 PM CDT SAT AUG 16 1986

AT 240 PM CDT
WEATHER RADAR AT MONTGOMERY SHOWED A SHORT INTENSE LINE OF THUNDER
STORMS EXTENDING FROM CENTREVILLE TO NEAR CAMDEN IN WEST CENTRAL
ALABAMA. THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT 20 MILES AN
HOUR AND WILL PASS OVER SELMA VERY SHORTLY.

THESE INTENSE THUNDERSTORMS WILL BE ACCOMPANIED BY HEAVY RAINS AND VERY
DANGEROUS LIGHTNING. T,HE THUNDERSTORMS ALSO HAVE THE POTENTIAL FOR
STRONG GUSTY WINDS AND SMALL HAIL. PEOPLE IN CENTRAL ALABAMA SHOULD
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS THROUGHOUT THE
REMAINDER OF THIS AFTERNOON AND EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 2:00 PM CDTSevere Thunderstorm WarningBMXMadison60 min
Aug 16, 2:25 PM CDTSevere Thunderstorm WarningBMXMorgan35 min
Aug 16, 2:25 PM CDTSevere Thunderstorm WarningBMXWalker, Winston35 min
Aug 16, 2:50 PM CDTSevere Thunderstorm WarningBMXJefferson40 min
Aug 16, 2:54 PM CDTSevere Thunderstorm WarningBMXLimestone, Madison, Morgan66 min
Aug 16, 3:15 PM CDTSevere Thunderstorm WarningBMXBlount30 min
Aug 16, 3:30 PM CDTSevere Thunderstorm WarningBMXSt. Clair, Shelby60 min
Aug 16, 3:30 PM CDTSevere Thunderstorm WarningBMXEtowah60 min
Aug 16, 3:30 PM CDTSevere Thunderstorm WarningBMXJefferson30 min
Aug 16, 4:08 PM CDTSevere Thunderstorm WarningBMXCalhoun, Talladega52 min
Aug 16, 4:08 PM CDTSevere Thunderstorm WarningBMXCherokee52 min
Aug 16, 4:30 PM CDTSevere Thunderstorm WarningBMXRandolph90 min
Aug 16, 4:50 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne45 min
Aug 16, 5:08 PM CDTSevere Thunderstorm WarningBMXPerry52 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; the sounding from the Mesonet's radiosonde archive.