Alert archive / Alabama / Tornado Warnings in 1986

Tornado Warning 4, NWS Birmingham, AL

March 12, 1986Marion County, Alabama

NWS Birmingham, AL issued this tornado warning at Mar 12, 1986, 3:08 PM CST for Marion County, Alabama. It was in force for 67 min. 2 reports 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
Mar 12, 1986, 3:08 PM CST (21:08 UTC)
Expired
Mar 12, 1986, 4:15 PM CST
In force
67 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marion 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
Mar 12, 3:25 PM CSTTornado F3Marion, AL
Mar 12, 3:35 PM CSTTornado F2Marion, 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 12:00Z, 9.1 hours before the alert went out and 152 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 1986-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 12:00Z on 1986-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 295 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
941 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
295 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 1:25 PM CSTTornado WarningBMXPickens65 min
Mar 12, 2:30 PM CSTTornado WarningBMXFayette, Lamar, Pickens60 min
Mar 12, 3:35 PM CSTTornado WarningBMXWinston40 min
Mar 12, 3:35 PM CSTTornado WarningBMXFayette, Lamar, Pickens40 min
Mar 12, 3:56 PM CSTTornado WarningBMXFranklin, Lawrence64 min
Mar 12, 4:10 PM CSTTornado WarningBMXColbert, Franklin, Lawrence65 min
Mar 12, 4:12 PM CSTTornado WarningBMXMarion, Winston63 min
Mar 12, 4:12 PM CSTTornado WarningBMXFayette, Lamar, Pickens63 min
Mar 12, 4:25 PM CSTSevere Thunderstorm WarningBMXMarengo65 min
Mar 12, 4:25 PM CSTSevere Thunderstorm WarningBMXSt. Clair65 min
Mar 12, 4:30 PM CSTTornado WarningBMXTuscaloosa60 min
Mar 12, 4:55 PM CSTTornado WarningBMXWalker65 min
Mar 12, 5:02 PM CSTTornado WarningBMXCullman58 min
Mar 12, 5:25 PM CSTTornado WarningBMXFayette, Pickens65 min

Nearby

Tornado Warnings in Alabama, 1986Every tornado warning in 1986Tornadoes 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.