Alert archive / Mississippi / Tornado Warnings in 1992

Tornado Warning 28, NWS Jackson, MS

April 20, 1992Marion County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 20, 1992, 7:53 AM CDT for Marion County, Mississippi. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Apr 20, 1992, 7:53 AM CDT (12:53 UTC)
Expired
Apr 20, 1992, 8:30 AM CDT
In force
37 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Marion County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.9 hours before the alert went out and 110 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 1992-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1940 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 1992-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
1940 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
588 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
2.4
Supercell composite
14.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KJAN 201254
TORJAN
MSC091-201330-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
753 AM CDT MON APR 20 1992
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...NORTHERN MARION COUNTY
 
AT 753 AM CDT THE JACKSON RADAR INDICATED A POSSIBLE TORNADO 10 MILES
NORTHWEST OF COLUMBIA MISSISSIPPI MOVING NORTHEAST AT 35 MPH.
 
 
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  IF YOU ARE IN THE
PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF
NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.
<

What forecasters said that day

The local office's own words before this tornado 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, Apr 20, 2:14 AM CDT, 5 hours 39 minutes before
MSZALL-200630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
210 AM CST MON APR 20 1992

... A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF WESTERN AND NORTHERN
    MISSISSIPPI UNTIL 7 AM CDT THIS MORNING ...

...A LINE OF THUNDERSTORMS HAS ENTERED WEST CENTRAL MISSISSIPPI...

AT 210 AM...RADAR INDICATED A LINE OF THUNDERSTORMS ALONG THE
MISSISSIPPI RIVER...EXTENDING FROM NEAR GREENVILLE MISSISSIPPI TO
TALLULA LOUISIANA.

THE THUNDERSTORMS WITH THE HEAVIER RAINFALL AMOUNTS WERE LOCATED FROM
THE LOUISIANA STATE LINE TO A POINT 13 MILES NORTHWEST OF VICKSBURG.
THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.

THESE THUNDERSTORMS MAY PRODUCE SOME VERY HEAVY RAIN"FALL...STRONG GUSTY
WINDS AND POSSIBLY SOME HAIL.
Special weather statement, Apr 20, 2:45 AM CDT, 5 hours 8 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-200830-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
225 AM CDT MON APR 20 1992

 ... A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF NORTHERN AND
     WESTERN MISSISSIPPI UNTIL 7 AM CDT THIS MONDAY MORNING ...

 ... A LINE OF THUNDERSTORMS CONTINUES TO MOVE THROUGH PORTIONS OF
     WEST-CENTRAL MISSISSIPPI ...

AT 225 AM CDT...RADAR INDICATED A LINE OF THUNDERSTORMS...SOME VERY
STRONG...OVER WEST-CENTRAL MISSISSIPPI. THE LINE EXTENDED FROM 10 MILES
SOUTHEAST OF GREENVILLE TO 12 MILES SOUTHWEST OF HOLLY BLUFF. THUNDER-
STORMS...WITHIN THIS LINE...WERE INDICATED NEAR HOLLANDALE AND ROLLING
FORK.

THE LINE OF STORMS WAS MOVING NORTHEAST AT 25 MPH...AND CAN BE EXPECTED
TO PASS THROUGH THE TOWNS OF BELZONI...SILVER CITY...AND HOLLY BLUFF BY
ABOUT 315 AM CDT. FOLKS IN YAZOO CITY WILL ALSO SEE THESE STORMS
PASS THROUGH BY 330 AM CDT.

SOME OF THE STRONGER STORMS IN THIS LINE WILL LIKELY CONTAIN SOME
VERY HEAVY DOWNPOURS OF RAIN...STRONG GUSTY WINDS...AND POSSIBLY
HAIL.

THE STORMS IN THIS LINE HAVE SHOWN A DECREASE IN INTENSITY OVER THE
LAST SEVERAL HOURS. HOWEVER...IT IS POSSIBLE THAT THEY COULD INCREASE
AGAIN A LITTLE BIT LATER. ALSO...THERE ARE OTHER THUNDERSTORMS STILL
BACK OVER LOUISIANA THAT COULD MOVE INTO MISSISSIPPI LATER TONIGHT
OR MONDAY MORNING. THEREFORE...EVERYONE IN THE TORNADO WATCH AREA
SHOULD REMAIN ALERT UNTIL THE THREAT OF SEVERE WEATHER IS OVER.

SHOWERS AND STORMS OF LESSER INTENSITY WERE ALSO INDICATED NEAR SHAW
AND JUST NORTH OF VICKSBURG...AS WELL AS OVER PORTIONS OF NORTHEAST
LOUISIANA. MOVEMENT OF THESE SHOWERS AND STORMS WAS NORHEAST AT 30 MPH.
Special weather statement, Apr 20, 3:13 AM CDT, 4 hours 40 minutes before
MSZALL-200910-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
310 AM CST MON APR 20 1992

... A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF WESTERN AND NORTHERN
    MISSISSIPPI UNTIL 7 AM CDT THIS MORNING ...

...INTENSE THUNDERSTORMS OVER THE SOUTH DELTA...

AT 305 AM...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL
OVER EASTERN HUMPHREYS COUNTY MOVING TO THE NORTHEAST AT 30 MPH.
THESE STORMS MAY ALSO CONTAIN STRONG GUSTY WINDS.  THE THUNDERSTORMS
WILL BE MOVING INTO HOLMES AND SOUTHERN LEFLORE COUNTIES BY 330 AM.

OTHER THUNDERSTORMS WITH HEAVY RAINFALL CONTINUED OVER CENTRAL
AND NORTHEAST LOUISIANA AND WILL LIKELY MOVE INTO WEST CENTRAL AND
SOUTHWEST MISSISSIPPI BEFORE DAYBREAK.
Special weather statement, Apr 20, 3:39 AM CDT, 4 hours 14 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-200930-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
335 AM CDT MON APR 20 1992

 ... A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF NORTHERN AND
     WESTERN MISSISSIPPI UNTIL 7 AM CDT THIS MONDAY MORNING ...

 ... THUNDERSTORMS DECREASING OVER THE DELTA...AND INCREASING OVER
     NORTHEAST LOUISIANA...

AT 325 AM CDT...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL
OVER SOUTHERN LEFLORE AND EXTREME WESTERN HOLMES COUNTIES MOVING TO THE
NORTHEAST AT 30 MPH.  BRIEF GUSTY WINDS CAN ALSO BE EXPECTED WITH THESE
THUNDERSTORMS. THE STORMS HAVE WEAKENED SLIGHTLY OVER THE PAST HOUR.

ANOTHER AREA OF THUNDESTORMS WAS INCREASING OVER CENTRAL AND NORTHEAST
LOUISIANA IN THE WINNSBORO AREA AND JUST EAST OF ALEXANDRIA.  THESE
STORMS ARE ALSO MOVING NORTHEAST AND WILL LIKELY AFFECT WEST CENTRAL
AND SOUTHWEST MISSISSIPPI BEFORE DAYBR
EAK.
Special weather statement, Apr 20, 4:11 AM CDT, 3 hours 42 minutes before
MSZALL-201010-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
410 AM CST MON APR 20 1992

... A TORNADO WATCH IS IN EFFECT FOR NORTH AND WESTERN MISSISSIPPI
    UNTIL 7 AM CDT THIS MORNING ...

AT 405 AM...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL
OVER EXTREME NORTHEAST LOUISIANA BETWEEN LAKE PROVIDENCE AND TALLULAH.
THE STORMS WERE MOVING TO THE NORTHEAST AT 30 TO 35 MPH AND WILL MOVE
INTO WEST CENTRAL MISSISSIPPI DURING THE NEXT HOUR.  BRIEF GUSTY WINDS
AND POSSIBLY SMALL HAIL CAN BE EXPECTED WITH THESE STORMS.  OTHER
THUNDERSTORMS WERE SCATTERED OVER SOUTHWEST MISSISSIPPI BETWEEN
NATCHEZ AND WOODVILLE.

THE THUNDERSTORMS PREVIOUSLY OVER THE DELTA HAVE CONTINXUED TO WEAKEN
AND HAVE MOVED INTO WESTERN CARROLL COUNTY.
Special weather statement, Apr 20, 4:37 AM CDT, 3 hours 16 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-201030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
435 AM CDT MON APR 20 1992

 ... A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF NORTHERN AND
     WESTERN MISSISSIPPI UNTIL 7 AM CDT THIS MONDAY MORNING ...

AT 430 AM CDT...RADAR INDICATED THUNDERSTORMS HAD MOVED INTO WEST
CENTRAL MISSISSIPPI.  THE MOST INTENSE STORMS WERE OVER NORTHERN WARREN
AND SOUTHERN ISSAQUENA COUNTIES.  OTHER THUNDESTORMS WITH VERY HEAVY
RAINFALL WERE INDICATED FROM ROLLING FORK TO ST. JOSEPH LOUISIANA.
THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MPH AND WILL
MOVE THROUGH WEST CENTRAL AND SOUTHWEST MISSISSIPPI DURING THE NEXT
HOUR.  RESIDENTS OF THE AREA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:01 PM CDTSevere Thunderstorm WarningJANCopiah, Hinds29 min
Apr 19, 7:35 PM CDTSevere Thunderstorm WarningJANHinds25 min
Apr 20, 5:10 AM CDTSevere Thunderstorm WarningJANAmite65 min
Apr 20, 5:17 AM CDTTornado WarningJANLincoln43 min
Apr 20, 5:33 AM CDTSevere Thunderstorm WarningJANPike42 min
Apr 20, 6:03 AM CDTTornado WarningJANLawrence, Lincoln42 min
Apr 20, 6:22 AM CDTSevere Thunderstorm WarningJANHinds68 min
Apr 20, 6:47 AM CDTSevere Thunderstorm WarningJANLawrence, Simpson58 min
Apr 20, 6:54 AM CDTSevere Thunderstorm WarningJANRankin66 min
Apr 20, 7:03 AM CDTTornado WarningJANSimpson57 min
Apr 20, 7:29 AM CDTSevere Thunderstorm WarningJANJefferson Davis61 min
Apr 20, 8:01 AM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Smith44 min
Apr 20, 8:07 AM CDTTornado WarningJANJefferson Davis38 min
Apr 20, 8:29 AM CDTSevere Thunderstorm WarningJANJasper, Newton61 min
Apr 20, 8:58 AM CDTTornado WarningJANJasper, Newton32 min
Apr 20, 9:05 AM CDTSevere Thunderstorm WarningJANForrest, Lamar40 min
Apr 20, 9:05 AM CDTTornado WarningJANClarke, Lauderdale55 min
Apr 20, 9:42 AM CDTTornado WarningJANKemper48 min

Nearby

Tornado Warnings in Mississippi, 1992Every tornado warning in 1992Tornadoes in 1992

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.