Alert archive / Mississippi / Tornado Warnings in 1993

Tornado Warning 15, NWS Jackson, MS

February 21, 1993Copiah County, Mississippi

NWS Jackson, MS issued this tornado warning at Feb 21, 1993, 9:11 AM CST for Copiah County, Mississippi. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Feb 21, 1993, 9:11 AM CST (15:11 UTC)
Expired
Feb 21, 1993, 9:45 AM CST
In force
34 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Copiah County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.2 hours before the alert went out and 61 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 1993-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 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 1993-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 508 square meters per square second.1939587897Sfc1 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
24 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
508 m²/s²
0-3 km storm-relative helicity
622 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 211511
TORJAN
MSC029-211545-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
911 AM CST SUN FEB 21 1993
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  945 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN CENTRAL MISSISSIPPI
 
   ...COPIAH COUNTY
 
AT 908 AM CST A POSSIBLE TORNADO WAS INDICATED IN WESTERN COPIAH COUNTY
ABOUT 15 MILES WEST OF HAZELHUSRT MOVING EAST NORTHEAST AT 40 MILES AN
HOUR. IF YOU ARE IN THE PATH OF THIS STORM....SEEK SHELTER NOW!!!!
 
 
SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR APARTMENT.  AVOID WINDOWS AND PROTECT YOUR HEAD FROM FLYING
DEBRIS WITH CUSHIONS OR PILLOWS.
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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, Feb 21, 5:13 AM CST, 3 hours 58 minutes before
MSZ001-002-004>007-211140

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
505 AM CST SUN FEB 21 1993

SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH
MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A
LINE FROM GREENVILLE TO GRENADA TO AMORY.

AT 5 AM CST STRONG THUNDERSTORMS WERE OVER EASTERN ARKANSAS...MOVING
TO THE EAST AT AROUND 50 MILES AN HOUR. AT THIS MOVEMENT...THE STORMS
WILL CROSS THE RIVER INTO THE MISSISSIPPI DELTA WITHIN THE HOUR.

SEVERAL WARNINGS HAVE ALREADY BEEN ISSUED FOR SOME ARKANSAS COUNTIES
THIS MORNING.  PERSONS IN THE WATCH AREA IN NORTH MISSISSIPPI SHOULD
REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATEJR STATEMENTS
OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 5:32 AM CST, 3 hours 39 minutes before
MSZ001-002-004>007-211225

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
525 AM CST SUN FEB 21 1993

SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH
MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A
LINE FROM GREENVILLE TO GRENADA TO AMORY.

AT 525 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY
SCATTERED OVER THE WESTERN HALF OF MISSISSIPPI. THE STRONGEST THUNDERSTORMS
WERE LOCATED IN THE DELTA AND NORTHEAST LOUISIANA. THE STRONGEST
THUNDERSTORM IN MISSISSIPPI WAS 10 MILES SOUTHWEST OF HOLLANDALE.

SEVERAL WARNINGS HAVE ALREADY BEEN ISSUED FOR SOME ARKANSAS COUNTIES
THIS MORNING.  PERSONS IN THE WATCHf AREA IN NORTH MISSISSIPPI SHOULD
REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS
OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 6:40 AM CST, 2 hours 31 minutes before
MSZALL-211325

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
625 AM CST SUN FEB 21 1993

SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH
MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A
LINE FROM GREENVILLE TO GRENADA TO AMORY.

AT 625 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY
SCATTERED OVER CENTRAL MISSISSIPPI AND THE DELTA. THE HEAVIEST
THUNDERSTORMS WERE 30 MILES SOUTHWEST OF JACKSON AND 30 MILES NORTH OF
GREENVILLE.

MOVEMENT WAS NORTHEAST AT 50 MILES AN HOUR.

PERSONS IN THE WATCH AREA IN NORTH MISSISSIPPI SHOULD REMAIN
ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS
OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 7:43 AM CST, 1 hour 28 minutes before
MSZALL-211430

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
730 AM CST SUN FEB 21 1993

...SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF
NORTH MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH
OF A LINE FROM GREENVILLE TO GRENADA TO AMORY...
...TORNADO WATCH NUMBER 32 REMAINS IN EFFECT FOR CENTRAL AND SOUTH
MISSISSIPPI UNTIL NOON CST...

AT 725 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY
SCATTERED OVER CENTRAL MISSISSIPPI AND THE DELTA. THE STRONGEST
THUNDERSTORM IN MISSISSIPPI WAS JUST SOUTH OF FOREST.

ANOTHER STRONG THUNDERSTORM WITH VERY HEAVY RAINFALL WAS LOCATED IN
NORTHEAST LOUISIANA...JUST WEST OF@ THE MISSISSIPPI RIVER.  THIS STORM
WAS 20 MILES SOUTHWEST OF VICKSBURG MISSISSIPPI.

MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR.
Special weather statement, Feb 21, 7:47 AM CST, 1 hour 24 minutes before
MSZ009-012-211445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
744 AM CST SUN FEB 21 1993

...TORNADO WATCH REMAINS IN EFFECT FOR ALL OF CENTRAL AND EAST CENTRAL
MISSISSIPPI UNTIL NOON...

AT 74O AM MERIDIAN RADAR INDICATED A LARGE AREA OF RAIN WITH A FEW
EMBEDDED THUNDERSTORMS OVER MUCH OF EAST CENTRAL MISSISSIPPI AND WEST
CENTRAL ALABAMA.  THE THUNDERSTORMS AND RAIN WERE LOCATED WITHIN A 100
MILE WIDE AREA EXTENDING FROM NEAR COLUMBIA MISSISSIPPI NORTHEAST
THROUGH MERIDIAN TO NEAR FAYETTE ALABAMA.  THE STRONGEST THUNDERSTORMS
WERE LOCATED BETWEEN MERIDIAN AND NEWTON IN EAST CENTRAL MISSISSIPPI.

THE THUNDERSTORMS AND RAIN WERE MOVING TO THE EAST AT 35 MPH.

 P
Special weather statement, Feb 21, 8:50 AM CST, 21 minutes before
MSZ009-012-ALZ008-013-211545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
850 AM CST SUN FEB 21 1993

...TORNADO WATCH REMAINS IN EFFECT FOR ALL OF CENTRAL AND EAST CENTRAL
MISSISSIPPI UNTIL NOON...

AT 840 AM CST MERIDIAN WEATHER RADAR INDICATED RAIN WITH A FEW EMBEDDED
THUNDERSTORMS COVERING A LARGE PART OF SOUTH CENTRAL AND EAST CENTRAL
MISSISSIPPI AND WEST CENTRAL ALABAMA.  THE RAIN AND THUNDERSTORMS WERE
LOCATED WITHIN A 100 MILE WIDE AREA EXTENDING FROM NEAR MCCOMB
MISSISSIPPI NORTHEAST THROUGH MERIDIAN TO NEAR TUSCALOOSA ALABAMA.  THE
STRONGEST THUNDERSTORMS WERE INDICATED BETWEEN RALEIGH AND STRINGER IN
CENTRAL MISSISSIPPI.  LITTLE CHANGE IN COVERAGE OR INTENSIpTY HAS BEEN
INDICATED DURING THE PAST HOUR.

THE RAIN AND THUNDERSTORMS WERE MOVING TO THE EAST AT 35 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 7:43 AM CSTSevere Thunderstorm WarningJANClaiborne, Warren32 min
Feb 21, 8:01 AM CSTSevere Thunderstorm WarningJANHinds44 min
Feb 21, 8:58 AM CSTSevere Thunderstorm WarningJANCopiah32 min
Feb 21, 9:59 AM CSTTornado WarningJANSimpson, Smith31 min
Feb 21, 11:45 AM CSTTornado WarningJANClarke, Jasper60 min

Nearby

Tornado Warnings in Mississippi, 1993Every tornado warning in 1993Tornadoes in 1993

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.