Alert archive / Alabama / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 29, NWS Mobile, AL

May 9, 1986Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 9, 1986, 5:35 PM CDT for Baldwin County, Alabama. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
May 9, 1986, 5:35 PM CDT (22:35 UTC)
Expired
May 9, 1986, 6:30 PM CDT
In force
55 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Baldwin 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

Boothville, LA (KBVE), launched 12:00Z, 10.6 hours before the alert went out and 217 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, Boothville, LA at 12:00Z on 1986-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 662 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, Boothville, LA at 12:00Z on 1986-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
662 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1328 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
-6 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 092234
SVRMOB
ALC003-092330-

BULLETIN..IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
535 PM CDT FRI MAY 9 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

SOUTHWEST ALABAMA...SOUTHERN BALDWIN

AT 534 PM CDT THE MOBILE RADAR SHOWED A SEVERE THUNDERSTORM JUST SOUTHEAST
OF FOLEY ALABAMA..MOVING SLOWLY TO THE SOUTHWEST.
THIS THUNDERSTORM WILL LIKELY PRODUCE DAMAGING WINDS AND DANGEROUS
LIGHTNING, AND COULD PRODUCE LARGE HAIL.
PERSONS OVER EXTREME SOUTHERN BALDWIN COUNTY SHOULD BE PREPARED TO TAKE
SHELTER AS THIS STROM APPROACHES.

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, May 9, 4:36 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
435 PM CDT FRI MAY 9 1986

AT 430 PM CDT...THUNDERSTORMS..A FEW HEAVY..WERE ALONG THE COASTLINE
FROM AROUND THE PENSACOLA NAVAL AIR STATION TO JUST WEST OF FORT WALTON
WITH OTHER SCATTERED SHOWERS OVER THE WEST PART OF THE FLORIDA PAN-
HANDLE..OVER ALABAMA BETWENN THOMASVILLE AND MONTGOMERY.
THE THUNDERSTORMS WERE MOVING SLOWLY NORTHEAST.

THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF HEAVY RAIN..GUSTY
WINDS AROUND 40 MILES AN HOUR..FREQUENT LIGHTNING..AND SMALL HAIL.
PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS
WHILE THE THUNDERSTORMS ARE IN THE AREA.
Special weather statement, May 9, 5:02 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
500 PM CDT FRI MAY 9 1986

...ISOLATED THUNDERSTORMS IN SOUTHEAST BALDWIN COUNTY...

AT 455 PM CDT THIS AFTERNOON NATIONAL WEATHER SERVICE RADAR SHOWED AN
ISOLATED HEAVY THUNDERSTORM JUST NORTH OF ORANGE BEACH IN SOUTHEAST
BALDWIN COUNTY.  ALSO, A VERY HEAVY THUNDERSTORM WAS ALONG THE ALABAMA
-FLORIDA STATELINE JUST NORTH OF PERDIDO.  WHILE THESE STORMS MAY
BRING WELCOME RAINFALL...PERSONS ALONG THE BALDWIN COUNTY COAST SHOULD
BE AWARE THAT THESE STORMS COULD ALSO PRODUCE STRONG GUSTY WINDS, AND
DANGEROUS LIGHTNING. THE STORMS ARE DRIFTING SLOWLY TO THE SOUTHWEST
AND COULD MOVE OVER THE PERDIDO INLET AND BEACH AREAS OF BALDWIN COUNTY
DURING THE NEXT 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.