Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 15, NWS Jackson, MS

March 4, 1989Scott County, Smith County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 4, 1989, 12:15 PM CST for Scott County, Smith County, Mississippi. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Mar 4, 1989, 12:15 PM CST (18:15 UTC)
Expired
Mar 4, 1989, 12:45 PM CST
In force
30 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Scott County, MS, Smith 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

Jackson, MS (KJAN), launched 12:00Z, 6.3 hours before the alert went out and 54 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, Jackson, MS at 12:00Z on 1989-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Jackson, MS at 12:00Z on 1989-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.19395878Sfc1 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
6 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
316 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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

Special weather statement, Mar 4, 6:34 AM CST, 5 hours 41 minutes before
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Special weather statement, Mar 4, 8:52 AM CST, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
850 AM CST SAT MAR 4 1989

   ...SEVERE THUNDERSTORMS POSSIBLE OVER MISSISSIPPI BY TONIGHT...

A STRONG COLD FRONT EXTENDED THIS MORNING FROM NORTH CENTRAL ARKANSAS
SOUTHWEST TO NEAR LONGVIEW AND SAN ANTONIO TEXAS. A LOW PRESSURE SYSTEM
IS PRESENTLY DEVELOPING ON THIS FRONT IN SOUTHERN TEXAS. THIS LOW IS
EXPECTED TO INTENSIFY AND THEN MOVE NORTHEAST INTO NORTHEAST LOUISIANA
BY SUNSET AND THEN RACE NORTHEAST ACROSS NORTH MISSISSIPPI TONIGHT.

STRONG TO SEVERE THUNDERSTORMS ARE FORECAST TO DEVELOP OVER PORTIONS
OF LOUISIANA LATER TODAY AND THEN SPREAD INTO MISSISSIPPI THIS AFTERNOON
AND TONIGHT.

ANOTHER CONCERN IS THE POSSIBILITY OF VERY HEVY RAINS. RAINFALL AMOUNTS
OF 1 TO 2 INCHES ARE EXPECTED ACROSS THE STATE THIS AFTERNOON AND
TONIGHT. IN THE DELTA...WHERE RIVER FLOODING IS ALREADY OCCURRING...
RAINFALL TOTALS WILL APPROACH 3 INCHES IN SOME LOCATIONS.

AFTER THE FRONT PASSES THROUGH THE STATE TONIGHT...COLDER AIR WILL
BE USHERED IN BY BLUSTERY NORTHWESTERLY WINDS. THE AIR MAY BE COLD
ENOUGH IN THE NORTHWEST FOR THE RAIN TO CHANGE BRIEFLY TO SNOW ON
SUNDAY BEFORE THE PRECIPITATION ENDS.

THIS IS A RATHER COMPLEX...BUT SERIOUS WEATHER SITUATION. ALL
MISSISSIPPIANS...SHOULD REMAIN WEATHER CONSCIOUS THROUGHOUT THE DAY
AND BE PREPARED TO TAKE SAFETY PRECAUTIONS IF WARNINGS ARE ISSUED OR
THREATENING WEATHER IS SIGHTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 4, 12:03 PM CSTSevere Thunderstorm WarningJANScott27 min
Mar 4, 1:19 PM CSTTornado WarningJANNewton26 min
Mar 4, 5:32 PM CSTTornado WarningJANWarren28 min
Mar 4, 5:58 PM CSTTornado WarningJANWarren32 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.