Alert archive / Alabama / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 45, NWS Mobile, AL

July 27, 1987Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 27, 1987, 5:12 PM CDT for Baldwin County, Alabama. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1987, 5:12 PM CDT (22:12 UTC)
Expired
Jul 27, 1987, 6:00 PM CDT
In force
48 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 10.2 hours before the alert went out and 121 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, Eglin AFB/Valpar, FL at 12:00Z on 1987-07-27Temperature 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, Eglin AFB/Valpar, FL at 12:00Z on 1987-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1168 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
48 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 272220 COR
SVRMOB
ALC003-272300-

BULLETIN..IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
512 PM CDT MON JUL 27 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
EFFECTIVE UNTIL 600 PM CDT FOR THE FOLLOWING COUNTY IN ALABAMA

...BALDWIN...

AT 500 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR PERDIDO IN
NORTHEAST BALDWIN COUNTY. IT WAS MOVING TO THE SOUTHWEST AT 10 MILES
AN HOUR. DAMAGING WINDS AND LARGE HAIL ARE LIKELY WITH THIS STORM.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 8:53 PM CDTSevere Thunderstorm WarningMOBCovington52 min
Jul 27, 12:15 AM CDTSevere Thunderstorm WarningMOBBaldwin60 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1987Every severe thunderstorm warning in 1987

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.