Alert archive / Mississippi / Tornado Watches in 1997

Tornado Watch 142

April 5, 19974 states

The Storm Prediction Center issued this tornado watch at Apr 5, 1997, 9:00 AM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 5, 1997, 9:00 AM CST (15:00 UTC)
Expired
Apr 5, 1997, 3:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 59 counties

Fulton County, KY, New Madrid County, MO, Pemiscot County, MO, Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, DeSoto County, MS, Grenada County, MS, Holmes County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Lowndes County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN

Warnings issued inside it

3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 5, 9:57 AM CSTSevere Thunderstorm WarningJANChoctaw48 min
Apr 5, 10:18 AM CSTSevere Thunderstorm WarningJANOktibbeha, Webster42 min
Apr 5, 10:22 AM CSTSevere Thunderstorm WarningMEGClay33 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 3.0 hours before the alert went out and 80 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, Little Rock, AR at 12:00Z on 1997-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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, Little Rock, AR at 12:00Z on 1997-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
26 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

417 
WWUS9 KMKC 051431
SEL2  
MKC WW 051431
MSZ000-TNZ000-052100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 142
STORM PREDICTION CENTER NORMAN OK
831 AM CST SAT APR 5 1997

A...THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR

   PARTS OF NORTHERN MISSISSIPPI                        
   WEST TENNESSEE                          

EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON UNTIL 300 PM CST.

TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING
THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS.


THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 60 MILES SOUTHEAST OF GREENWOOD MISSISSIPPI TO 60
MILES NORTHEAST OF DYERSBURG TENNESSEE.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
$$

C...TORNADOES AND A FEW SVR TSTMS WITH HAIL SFC AND ALF TO 1 1/2
INCHES.  EXTRM TURBC AND SFC WIND GUSTS TO 70 KNOTS.  A FEW CBS
WITH MAX TOPS TO 450.  MEAN WIND VECTOR 21035.

D...SQLN WITH POTENTIAL FOR DMGG WNDS AND ISOLD TORNADOES WL MOV
ENE ACRS WW AREA AT 20-25 KTS...WITH INDIVIDUAL STMS MOVG NNE AT
40-45 KTS.  ZONE OF SFC PRES FALLS ASSOCD WITH EXIT RGN OF LWR MS
JET SHUD KEEP SFC WNDS SMWHT BACKED...ENHANCING STM-RELATIVE FLOW. 

E...OTR TSTMS...  CONT..WW 139..WW 140 TIL 15Z...AND BEGIN WW 141
                    AT 15Z.

...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 2:30 AM CSTTornado WatchSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 18 more7 hr
Apr 5, 3:15 AM CSTTornado WatchSPCBolivar, Carroll, Coahoma, DeSoto, Grenada, Holmes and 13 more6 hr
Apr 5, 9:00 AM CSTTornado WatchSPCAmite, Claiborne, Clarke, Copiah, Covington, Forrest and 31 more6 hr
Apr 5, 1:00 PM CSTSevere Thunderstorm WatchSPCJackson4 hr
Apr 5, 2:30 PM CSTSevere Thunderstorm WatchSPCCity of Saint Louis5 hr
Apr 5, 11:45 AM CSTSevere Thunderstorm WatchSPCBedford, Cannon, Coffee, Decatur, Franklin, Giles and 16 more7 hr

Nearby

Tornado Watches in Mississippi, 1997Tornado Watches in Tennessee, 1997Tornado Watches in Missouri, 1997Every tornado watch in 1997

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.