Alert archive / Mississippi / Tornado Warnings in 1991
Tornado Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this tornado warning at Mar 27, 1991, 12:55 PM CST for DeSoto County, Mississippi; Shelby County, Tennessee. It was in force for 35 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 27, 1991, 12:55 PM CST (18:55 UTC)
- Expired
- Mar 27, 1991, 1:30 PM CST
- In force
- 35 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
Counties DeSoto County, MS, Shelby County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 27, 1:00 PM CST | Thunderstorm Wind 0 | De Soto, MS | |
| Mar 27, 1:20 PM CST | Tornado F1 | Shelby, TN |
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
Paducah/Barkley, KY (KPAH), launched 12:00Z, 6.9 hours before the alert went out and 253 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.
- Mixed-layer CAPE
- 204 J/kg
- Mixed-layer CIN
- -214 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 318 m²/s²
- 0-3 km storm-relative helicity
- 368 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEM 271855 TORMEM MSC033-TNC157-271930- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 1255 PM CST WED MAR 27 1991 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 130 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST MISSISSIPPI ...DESOTO COUNTY IN WEST TENNESSEE ...SHELBY COUNTY AT 1252 PM WEATHER RADAR INDICATED A POSSIBLE TORNADO OVER WESTERN DESOTO COUNTY MISSISSIPPI. MOVING EAST-NORTHEAST AT 45 MPH THIS TORNADIC THUNDERSTORM WILL MOVE NEAR SOUTHHAVEN MISSISSIPPI AND INTO SOUTHERN MEMPHIS BY 110PM. THIS IS A POTENTIALLY DANGEROUS STORM. TAKE COVER IMMEDIATELY IF THREATENING WEATHER HEADS YOUR WAY. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
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 27, 11:04 AM CST, 1 hour 51 minutes before
TNZ013-014-015-MSZ001-ARZ012-013-014-271800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1103 AM CST WED MAR 27 1991 A NORTHEAST - SOUTHWEST ORIENTED BAND OF THUNDERSTORMS WAS SWEEPING ACROSS NORTHEAST ARKANSAS AT 1050 AM THIS MORNING. THE AREA OF THUNDERSTORMS WAS MOVING EAST AT 40 MPH WHILE INVIVIDUAL THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 60 MPH. STRONGER THUNDERSTORMS WERE MOVING ACROSS POINSETT COUNTY ARKANSAS - NEAR HARRISBURG - AND OVER WEST ST FRANCIS COUNTY ARKANSAS - TOWARD FORREST CITY. THESE THUNDERSTORMS WILL BRING A SHORT PERIOD OF VERY HEAVY RAIN ALONG WITH STRONG WIND GUSTS AND DEADLY LIGHTNING. SOME INCREASE IN STRENGTH IS LIKELY AS THE THUNDERSTORMS WORK TOWARD THE EAST AND NORTHEAST. YOU SHOULD SEEK SHELTER IN A STURDY BUILDING AS THE THUNDERSTORMS APPROACH YOUR LOCATION. STAY AWAY FROM WINDOWS AND ELECTRICAL DEVICES AS THE THUNDERSTORMS PASS OVER. STAY TUNED TO THIS STATION FOR LATER BULLETINS.
Special weather statement, Mar 27, 11:28 AM CST, 1 hour 27 minutes before
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
Special weather statement, Mar 27, 11:54 AM CST, 1 hour 1 minute before
TNZ012-013-014-015-MSZ001-004-ARZ012-014-271900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1153 AM CST WED MAR 27 1991 AT 1155 AM THE LINE OF STRONG THUNDERSTORMS CONTINUED TO WORK ITS WAY EASTWARD ACROSS NORTHEAST ARKANSAS AND WAS MOVING OVER THE MISSISSIPPI RIVER AND INTO WEST TENNESSEE. MOVING EAST-NORTHEAST AT 40 MPH .. THE THUNDERSTORM LINE WILL MOVE THROUGH THE DYERSBURG .. RIPLEY .. COVINGTON .. AND MEMPHIS AREAS BETWEEN NOON AND 1 PM. AT 1155 AM THUNDERSTORMS STRETCHED FROM JUST WEST OF DYERSBURG TENNESSEE .. SOUTH ALONG THE MISSISSIPPI RIVER TO WEST MEMPHIS ARKANSAS .. AND ON SOUTHWEST TO NEAR DEWITT ARKANSAS - JUST EAST OF PINE BLUFF. INDIVIDUAL THUNDERSTORMS WERE RACING TOWARD THE NORTHEAST AT 60 MPH WHILE THE LINE OF THUNDERSTORMS PRESSED TOWARD THE EAST-NORTHEAST. SOME WEAKENING WAS NOTED IN THE THUNDERSTORMS AT THE NORTHERN END OF THE LINE - NEAR DYERSBURG BUT OTHER CONTINUED TO BE STRONG. 9 THE THUNDERSTORMS WILL BRING A BRIEF PERIOD OF VERY HEAVY RAIN .. STRONG AND GUSTY WIND .. AND DEADLY LIGHTNING AS THEY MOVE THROUGH. STAY TUNED TO THIS STATION FOR LATER BULLETINS.
Special weather statement, Mar 27, 12:32 PM CST, 23 minutes before
TNZ012-013-014-015-MSZ001-004-ARZ012-013-014-271930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MEMPHIS TN 1232 PM CST WED MAR 27 1991 AT 1225 PM WEATHER RADAR LOCATED A LINE OF STRONG THUNDERSTORMS FROM THE UNION CITY AREA OF NORTHWEST TENNESSEE .. SOUTHWESTWARD BETWEEN ALAMO AND RIPLEY TENNESSEE .. OVER THE MEMPHIS AND MILLINGTON AREAS .. NEAR TUNICA MISSISSIPPI .. ACROSS THE MISSISSIPI RIVER NEAR HELENA ARKANSAS .. AND TO NEAR DUMAS ARKANSAS. THE THUNDERSTORM LINE WAS MOVING EAST AT 40 MPH WHILE INDIVIDUAL THUNDERSTORMS RACED TOWARD THE NORTHEAST AT 50 MPH. STRONGER THUNDERSTORMS WERE INDICATED NEAR THE NORTH PART OF MEMPHIS ... AND NEAR HELENA ARKANSAS. ANOTHER LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING INTO NORTHEAST ARKANSAS AT 1225 PM. THAT LINE STRETCHED FROM THE PARAGOULD - JONESBO AREA SOUTHWESTWARD NEAR AUGUSTA .. AND TOWARD PINE BLUFF ARKANSAS. THAT THUNDERSTORM LINE WAS MOVING EiAST AT 40 MPH AS WELL. A BRIEF PERIOD OF VERY HEAVY RAIN .. GUSTY WIND .. AND DANGEROUS LIGHTNING CAN BE EXPECTED AS THE THUNDERSTORMS MOVE THROUGH. STAY TUNED TO THIS STATION FOR LATER BULLETINS.
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 1:14 PM CST | Severe Thunderstorm Warning | MEG | Fayette | 46 min |
| Mar 27, 1:32 PM CST | Tornado Warning | MEG | Fayette | 28 min |
| Mar 27, 2:49 PM CST | Tornado Warning | MEG | Decatur | 26 min |
Nearby
Tornado Warnings in Mississippi, 1991Tornado Warnings in Tennessee, 1991Every tornado warning in 1991Tornadoes in 1991
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.