Alert archive / Alabama / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 5, NWS Birmingham, AL

February 6, 1986Jackson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 6, 1986, 12:50 PM CST for Jackson County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Feb 6, 1986, 12:50 PM CST (18:50 UTC)
Expired
Feb 6, 1986, 1:50 PM CST
In force
60 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Jackson 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 160 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, Nashville Metro, TN at 12:00Z on 1986-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 1986-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
199 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, Feb 6, 11:17 AM CST, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1115 AM CST THU FEB 6 1986

A FEW THUNDERSHOWERS ARE OVER MARION COUNTY.

AT 1115 AM CST RADAR INDICATED THUNDERSHOWERS OVER MARION COUNTY...
BETWEEN WINFIELD...GUIN AND BRILLIANT.

THESE THUNDERSHOWERS ARE MOVING EAST AT 20 MPH AND WILL PROBABLY
MOVE INTO PORTIONS OF WINSTON AND WALKER COUNTIES BETWEEN NOW AND
1200 NOON.

IF THESE THUNDERSHOWERS PASS THROUGH YOUR AREA YOU CAN EXPECT TO
RECEIVE SOME HEAVY RAINS...GUSTY WINDS AND DANGEROUS LIGHTNING.

ELSEWHERE...SCATTERED LIGHT SHOWERS WERE DEVELOPING BETWEEN
            BIRMINGHAM...ONEONTA AND CULLMAN. THESE SHOWERS ARE ALSO
            MOVING EAST AT ABOUT 20 MPH.

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.