Alert archive / Mississippi / Tornado Watches in 1997

Tornado Watch 775

October 26, 19975 counties in Alabama; 27 parishes in Louisiana; 43 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Oct 26, 1997, 12:00 AM CDT for 5 counties in Alabama; 27 parishes in Louisiana; 43 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Oct 26, 1997, 12:00 AM CDT (05:00 UTC)
Expired: Oct 26, 1997, 5:00 AM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 75 counties

Greene County, AL, Jefferson County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Acadia Parish, LA, Allen Parish, LA, Ascension Parish, LA, Avoyelles Parish, LA, Calcasieu Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Madison Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Franklin County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Walthall County, MS, Warren County, MS, Webster County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Oct 26, 12:02 AM CDT	Severe Thunderstorm Warning	LIX	Pike	28 min
Oct 26, 12:05 AM CDT	Flash Flood Warning	LCH	Calcasieu	115 min
Oct 26, 12:17 AM CDT	Severe Thunderstorm Warning	JAN	Hinds	43 min
Oct 26, 12:21 AM CDT	Severe Thunderstorm Warning	JAN	Leake	54 min
Oct 26, 12:38 AM CDT	Tornado Warning	BMX	Blount, Jefferson	32 min
Oct 26, 12:39 AM CDT	Severe Thunderstorm Warning	JAN	Rankin	66 min
Oct 26, 1:18 AM CDT	Severe Thunderstorm Warning	JAN	Jasper	42 min
Oct 26, 1:22 AM CDT	Severe Thunderstorm Warning	JAN	Scott, Smith	68 min
Oct 26, 1:42 AM CDT	Tornado Warning	BMX	Jefferson	33 min
Oct 26, 1:48 AM CDT	Severe Thunderstorm Warning	LIX	Amite	27 min
Oct 26, 1:54 AM CDT	Severe Thunderstorm Warning	JAN	Newton	51 min
Oct 26, 2:29 AM CST	Severe Thunderstorm Warning	JAN	Jasper, Smith	46 min

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.0 hours before the alert went out and 132 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: 3555 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 525 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 5.1
Supercell composite: 24.5

Open this sounding in Storm Lab

The text

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

961 
WWUS9 KMKC 260447
SEL5  
MKC WW 260447
LAZ000-MSZ000-ALZ000-261100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 775
STORM PREDICTION CENTER NORMAN OK
1147 PM CDT SAT OCT 25 1997

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   EASTERN AND SOUTHERN LOUISIANA                          
   CENTRAL AND SOUTHERN MISSISSIPPI                        
   WEST CENTRAL ALABAMA                            

EFFECTIVE THIS SUNDAY MORNING FROM MIDNIGHT CDT UNTIL 600 AM CDT
/500 AM CST/.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES SOUTHWEST OF LAFAYETTE LOUISIANA TO
COLUMBUS AFB MISSISSIPPI.

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.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 772...TORNADO WATCH NUMBER 773.  WATCH NUMBER 772...773 WILL
NOT BE IN EFFECT AFTER MIDNIGHT CDT.  CONTINUE...WW 774...WW 775...

DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO DEVELOP ALONG/AHEAD
OF COLD FRONTAL BOUNDARY ACROSS LOUISIANA.  AIR MASS IS MODERATELY
UNSTABLE WITH CAPE TO 3000 J/KG.  PROFILER DATA INDICATES FAVORABLE
SHEAR AHEAD OF STRONG DISCONTINUITY ALONG FRONT.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 23040.


...MCCARTHY

295,0934 333,0900 333,0864 295,0903

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 25, 9:00 PM CDT	Tornado Watch	SPC	Blount, Colbert, Cullman, Etowah, Fayette, Franklin and 11 more	6 hr
Oct 26, 6:45 AM CST	Tornado Watch	SPC	Autauga, Barbour, Bullock, Butler, Chambers, Clay and 19 more	5 hr
Oct 26, 12:00 PM CST	Tornado Watch	SPC	Autauga, Barbour, Bullock, Butler, Chambers, Clay and 20 more	6 hr
Oct 25, 7:00 PM CDT	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 8 more	6 hr
Oct 25, 9:00 PM CDT	Tornado Watch	SPC	Bienville, Caldwell, Catahoula, Concordia, East Carroll, Franklin and 15 more	6 hr

Nearby

Tornado Watches in Mississippi, 1997 Tornado Watches in Louisiana, 1997 Tornado Watches in Alabama, 1997 Every 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.