Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 150, NWS Jackson, MS

June 14, 1989Sumter County, Alabama

NWS Jackson, MS issued this severe thunderstorm warning at Jun 14, 1989, 6:54 PM CDT for Sumter County, Alabama. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1989, 6:54 PM CDT (23:54 UTC)
Expired
Jun 14, 1989, 7:45 PM CDT
In force
51 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Sumter 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 12:00Z, 11.9 hours before the alert went out and 100 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 12:00Z on 1989-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1521 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, Centreville/Bibb, AL at 12:00Z on 1989-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
1521 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

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 Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 9:17 PM CDTSevere Thunderstorm WarningJANBolivar43 min
Jun 13, 10:00 PM CDTSevere Thunderstorm WarningJANBolivar45 min
Jun 13, 10:46 PM CDTSevere Thunderstorm WarningJANBolivar, Washington44 min
Jun 13, 11:14 PM CDTFlash Flood WarningJANLeflore, Sunflower3 hr
Jun 14, 8:15 AM CDTSevere Thunderstorm WarningJANYazoo45 min
Jun 14, 2:48 PM CDTSevere Thunderstorm WarningJANJasper42 min
Jun 14, 3:09 PM CDTSevere Thunderstorm WarningJANJones36 min
Jun 14, 3:51 PM CDTSevere Thunderstorm WarningJANClarke, Jasper54 min
Jun 14, 2:54 PM CDTSevere Thunderstorm WarningJANChoctaw51 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.