Alert archive / Mississippi / Tornado Warnings in 1993

Tornado Warning 20, NWS Jackson, MS

March 30, 1993Copiah County, Rankin County, Simpson County, Mississippi

NWS Jackson, MS issued this tornado warning at Mar 30, 1993, 4:39 PM CST for Copiah County, Rankin County, Simpson County, Mississippi. It was in force for 51 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 30, 1993, 4:39 PM CST (22:39 UTC)
Expired: Mar 30, 1993, 5:30 PM CST
In force: 51 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Copiah County, MS, Rankin County, MS, Simpson County, MS

What was reported inside it

Time	Report	Where	Remark
Mar 30, 5:25 PM CST	Tornado F0	Crystal Springs, MS	A weak tornado was reported on the ground near the Harmony Community. No damage was done.
Mar 30, 5:30 PM CST	Tornado F0	Harrisville, MS	A small tornado touched down briefly near the Old Pearl Community and did not do any damage.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.7 hours before the alert went out and 34 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1103 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 302239
TORJAN
MSC029-121-127-302330-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
439 PM CST TUE MAR 30 1993
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  530 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN CENTRAL MISSISSIPPI
 
   ...NORTHEASTERN COPIAH COUNTY...RANKIN COUNTY
   ...NORTHWESTERN SIMPSON COUNTY
 
AT 438 PM CST...RADAR INDICATED A TORNADO DEVELOPING WITH A SEVERE
THUNDERSTORM OVER NORTHEASTERN COPIAH COUNTY 5 MILES EAST OF CRYSTAL
SPRINGS. THIS STORM WAS MOVING NORTHEASTWARD AT 25 MPH AND SHOULD BE
NEAR FLORENCE BY 515 PM.
 
 
THIS IS A DANGEROUS STORM.  MOVE QUICKLY TO UNDERGROUND SHELTER IF
AVAILABLE.  OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR.
AVOID WINDOWS.  LEAVE CARS AND MOBILE HOMES FOR A STURDY BUILDING.
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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, Mar 30, 1:41 PM CST, 2 hours 58 minutes before

MSZ009-012-ALZ008-013-302045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
142 PM CST TUE MAR 30 1993

TORNADO WATCH NUMBER 73 WHICH INCLUDES ALL COUNTIES IN EAST CENTRAL
MISSISSIPPI AND SUMTER AND CHOCTAW COUNTIES IN EXTREME WEST CENTRAL
ALABAMA IN EFFECT UNTIL 6 PM.

AT 130 PM CST MERIDIAN WEATHER RADAR INDICATED A LARGE AREA OF RAIN AND
VERY STRONG THUNDERSTORMS ALONG AND NORTH OF A LINE FROM RAYMOND TO BAY
SPRINGS MISSISSIPPI TO GROVE HILL ALABAMA.  THE STRONGEST THUNDERSTORMS
WERE INDICATED NEAR JACKSON AND NORTHWEST OF NEWTON MISSISSIPPI.

ALSO...SCATTERED THUNDERSTORMS WERE LOCATED IN SOUTHEAST MISSISSIPPI AND
SOUTHWEST ALABAMA.

THE RAIN AND THUNDERSTORMS W"ERE MOVING NORTH AT 35 MPH.

PERSONS IN AND CLOSE TO THE WATCH AREA SHOULD REMAIN ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

Special weather statement, Mar 30, 2:20 PM CST, 2 hours 19 minutes before

MSZALL-302115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
220 PM CST TUE MAR 30 1993

...TORNADO WATCH 73 TILL 6 PM FOR ALL OF CENTRAL AND MOST OF SOUTH-
CENTRAL MISSISSIPPI...

AT 215 PM CST...A LARGE AREA OF RAIN AND EMBEDDED THUNDERSTORMS
CONTINUED TO MOVE NORTHEASTWARD AT 25 MPH ACROSS EAST-CENTRAL AND NORTH
MISSISSIPPI.  OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE NOTED OVER
SECTIONS OF SOUTHWEST AND SOUTHEAST MISSISSIPPI.  THE STRONGEST STORMS
GENERALLY EXTENDED FROM CANTON TO OXFORD.

THESE STRONGER THUNDERSTORMS WERE PRODUCING BRIEF PERIODS OF HEAVY
RAIN...FREQUENT CLOUD-TO-GROUND LIGHTNING...GUSTY WINDS AND POSSIBLY
SOME SMALL HAIL.

THE LATEST SURFAChE DATA...NUMERICAL MODELS AND SATELLITE IMAGERY
INDICATED A COLD FRONT WILL BE MOVING EASTWARD INTO MISSISSIPPI
TONIGHT.  ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED
LATER TONIGHT.

Special weather statement, Mar 30, 2:37 PM CST, 2 hours 2 minutes before

MSZ010-011-012-013-014-302145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
238 PM CST TUE MAR 30 1993

...TORNADO WATCH 73 TILL 6 PM FOR CENTRAL AND MOST OF SOUTH-
CENTRAL MISSISSIPPI...

AT 235 PM CST...SCATTERED THUNDERSTORMS WERE RAPIDLY DEVELOPING OVER
PARTS OF SOUTH MISSISSIPPI...PARTICULARLY FROM ABOUT PRENTISS TO
POPLARVILLE.  THESE STORMS MAY PRODUCE HAIL AS THEY CONTINUE TO
INTENSIFY.  MOVEMENT WAS NORTHEAST AT 25 MILES AN HOUR.

Local storm report, Mar 30, 3:06 PM CST, 1 hour 33 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
307 PM CST TUE MAR 30 1993

301 PM CST...NESHOBA COUNTY C.D. REPORTS DIME SIZE HAIL 5 MILES
             SOUTHWEST OF PHILDELPHIA.

Local storm report, Mar 30, 3:34 PM CST, 1 hour 5 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
333 PM CST TUE MAR 30 1993

331 PM CST...NESHOBA COUNTY C.D. REPORTS DIME SIZE HAIL 8 MILES
             SOUTHEAST OF PHILDELPHIA MS...NEAR THE HOUSE MS.
             COMMUNITY.

Local storm report, Mar 30, 4:32 PM CST, 7 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
430 PM CST TUE MAR 30 1993

420 PM CST...NAVY WEATHER OBSERVER REPORTS TORNADO 8 MILES
             SOUTHSOUTWEST OF MERIDIAN NAVAL AIR STATION. IT
             WAS MOVING RAPIDLY EAST.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 9:53 AM CST	Severe Thunderstorm Warning	JAN	Marion	37 min
Mar 30, 10:38 AM CST	Severe Thunderstorm Warning	JAN	Jasper	52 min
Mar 30, 10:48 AM CST	Severe Thunderstorm Warning	JAN	Simpson	42 min
Mar 30, 11:02 AM CST	Severe Thunderstorm Warning	JAN	Clarke	43 min
Mar 30, 11:35 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale	40 min
Mar 30, 12:04 PM CST	Severe Thunderstorm Warning	JAN	Issaquena	26 min
Mar 30, 12:39 PM CST	Severe Thunderstorm Warning	JAN	Hinds	51 min
Mar 30, 2:52 PM CST	Severe Thunderstorm Warning	JAN	Neshoba	68 min
Mar 30, 3:00 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	45 min
Mar 30, 3:34 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Warren	41 min
Mar 30, 3:35 PM CST	Severe Thunderstorm Warning	JAN	Kemper	55 min
Mar 30, 3:46 PM CST	Tornado Warning	JAN	Lauderdale	59 min
Mar 30, 4:09 PM CST	Severe Thunderstorm Warning	JAN	Yazoo	66 min
Mar 30, 4:42 PM CST	Severe Thunderstorm Warning	JAN	Winston	63 min
Mar 30, 5:15 PM CST	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	60 min
Mar 30, 5:28 PM CST	Tornado Warning	JAN	Rankin, Simpson, Smith	47 min

Nearby

Tornado Warnings in Mississippi, 1993 Every tornado warning in 1993 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.