Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 104, NWS Mobile, AL

July 16, 1989Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 16, 1989, 7:51 PM CDT for Mobile County, Alabama. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Jul 16, 1989, 7:51 PM CDT (00:51 UTC)
Expired
Jul 16, 1989, 8:45 PM CDT
In force
54 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.9 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, Slidell Radar S, LA at 00:00Z on 1989-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2961 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 1989-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
2961 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1031 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
93 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:42 PM CDTSevere Thunderstorm WarningMOBBaldwin33 min
Jul 16, 9:48 PM CDTSevere Thunderstorm WarningMOBBaldwin27 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1989Every severe thunderstorm warning in 1989

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.