Alert archive / Alabama / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 25, NWS Mobile, AL

April 8, 1986Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 8, 1986, 6:00 PM CST for Washington County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 8, 1986, 6:00 PM CST (00:00 UTC)
Expired
Apr 8, 1986, 7:00 PM CST
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Washington 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, 0.0 hours before the alert went out and 191 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 1986-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 77 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 1986-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.1939587897117Sfc1 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
77 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
-29 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 
TTAA00 KMOB 082359
SVRMOB
ALC129-090100-

BULLETIN..IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
600 PM CST TUE APR 8 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 700 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHWEST ALABAMA...WASHINGTON

AT 600 PM CST...RADAR SHOWED A SEVERE THUNDERSTORM JUST EAST OF
WAYNESBORO MISSISSIPPI. THIS THUNDERSTORM IS MOVING TO THE OSOUTHEAST
AT NEARLY 55 MILES AN HOUR AND WILL LIKELY PRODUCE DAMAGING WIND AND
LARGE HAIL.

PERSONS IN MILLRY AND CHATOM ALABAMA...ALONG THE PATH OF THIS STORM...
SHOULD TAKE SHELTER IMMEDIATELY.

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, Apr 8, 4:41 PM CST, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
435 PM CST TUE APR 8 1986

SEVERE THUNDERSTORM WATCH NBR 81 IS IN EFFECT UNTIL 830 PM CST FOR
ESCAMBIA..SANTA ROSA..AND OKALOOSA COUNTIES IN NORTHWEST FLORIDA.

AT 430 PM CST...A LARGE POTENTIALLY SEVERE THUNDERSTORM WAS LOCATED
ON THE MISSISSIPPI ALABAMA BORDER ABOUT 70 MILES NORTH OF MOBILE. THE
STORM WAS MOVING SOUTHEASTWARD 55 TO 60 MILES AN HOUR. THIS
THUNDERSTORM HAS PRODUCED HAIL EARLIER IN ITS HISTORY..WHILE IN
MISSISSIPPI.

NO OTHER PRECIPITATION WAS INDICATED BY RADAR NEAR NORTHWEST FLORIDA
HOWEVER..RESIDENTS IN THE WESTERN COUNTIES OF THE FLORIDA PANHANDLE
SHOULD BE ALERT FOR RAPIDLY CHANGING OR DETERIORATING WEATHER
CONDITIONS.
Special weather statement, Apr 8, 5:38 PM CST, 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
540 PM CST TUE APR 8 1986

SEVERE THUNDERSTORM WATCH NBR 81 IS IN EFFECT UNTIL 830 PM CST FOR
ESCAMBIA..SANTA ROSA..AND OKALOOSA COUNTIES IN NORTHWEST FLORIDA.

AT 530 PM CST...A LARGE HEAVY THUNDERSTORM WAS LOCATED IN SOUTHWEST
ALABAMA ABOUT 30 MILES NORTH OF MOBILE.

SEVERAL OTHER HEAVY THUNDERSTORMS WERE OCCURRING IN SOUTHEAST
MISSISSIPPI..SOUTH OF MERIDIAN.
3
THESE THUNDERSTORMS WERE MOVING SOUTHEAST 50 TO 60 MILES AN HOUR.

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.