Alert archive / Alabama / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 74, NWS Mobile, AL

June 4, 1991Lee County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 4, 1991, 3:36 PM CDT for Lee County, Alabama. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1991, 3:36 PM CDT (20:36 UTC)
Expired
Jun 4, 1991, 4:45 PM CDT
In force
69 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Lee County, AL

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 8.6 hours before the alert went out and 243 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, Athens Municipal, GA at 12:00Z on 1991-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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, Athens Municipal, GA at 12:00Z on 1991-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -56 square meters per square second.193958Sfc1 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
100 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
1365 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-56 m²/s²
0-3 km storm-relative helicity
-25 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

Local storm report, Jun 4, 3:00 PM CDT, 36 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
300 PM CDT TUE JUN 4 1991

TIME             EVENT
240 PM CDT       HARRISON COUNTY C.D. REPORTED DIME SIZE HAIL IN
                 THE CITY OF PASS CHRIST[IAN MISSISSIPPI.
Local storm report, Jun 4, 3:25 PM CDT, 11 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
325 PM CDT TUE JUN 4 1991

TIME             EVENT
300 PM CDT       HARRISON COUNTY C.D. REPORTED MARBLE SIZE HAIL IN
                 THE CITY OF LONG BEAC~H MISSISSIPPI.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 5:57 PM CDTSevere Thunderstorm WarningMOBMontgomery63 min
Jun 4, 2:37 PM CDTSevere Thunderstorm WarningMOBHancock, Harrison68 min
Jun 4, 4:09 PM CDTSevere Thunderstorm WarningMOBPearl River66 min
Jun 4, 4:18 PM CDTSevere Thunderstorm WarningMOBStone57 min
Jun 4, 5:04 PM CDTSevere Thunderstorm WarningMOBPerry41 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1991Every severe thunderstorm warning in 1991

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.