Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 111, NWS Jackson, MS

May 22, 1989Amite County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 22, 1989, 1:27 PM CDT for Amite County, Mississippi. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
May 22, 1989, 1:27 PM CDT (18:27 UTC)
Expired
May 22, 1989, 2:00 PM CDT
In force
33 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Amite County, MS

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 12:00Z, 6.5 hours before the alert went out and 147 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 12:00Z on 1989-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2535 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, Slidell Radar S, LA at 12:00Z on 1989-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
2535 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
534 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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, May 22, 9:42 AM CDT, 3 hours 45 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
940 AM CDT MON MAY 22 1989

....DELAYED STORM REPORT FOR MAY 20 1989....

350 PM CDT...CLARKE COUNTY S.O. REPORTED TREES KNOCKED DOWN
             POWER LINES IN SOUTHWEST CLARKE COUNTY MISSISSIPPI.

410 PM CDT...CLARKE COUNTY S.O. REPORTED TREES DOWN ON POWER
             LINES AND ROADS IN NORTHERN CLARKE COUNTY MISSISSIPPI.

540 TO 600 PM CDT...MISS. POWER CO. REPORTED NUMEROUS TREES DOWN
             ON POWER LINES IN THE MERIDIAN MISSISSIPPI AREA.
Special weather statement, May 22, 10:43 AM CDT, 2 hours 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1040 AM CDT MON MAY 22 1989

SEVERE THUNDERSTORM WATCH NUMBER 296 HAS BEEN CANCELLED AND IS NO
LONGER IN EFFECT FOR NORTHERN MISSISSIPPI.

THE THUNDERSTORMS THAT WERE IN THE WATCH AREA HAVE WEAKENED AND NO LONGER
POSE A THREAT TO THE NORTHERN PORTION OF THE STATE. THUNDERSTORMS ARE
EXPECTED TO REDEVELOP OVER MUCH OF THE STATE THIS AFTERNOON AND INTO
TONIGHT.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 1:55 PM CDTTornado WarningJANPike35 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.