Alert archive / Louisiana / Tornado Watches in 2000

Tornado Watch 134

March 29, 2000Baldwin County, Mobile County, Washington County, Alabama; 26 parishes in Louisiana; 13 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Mar 29, 2000, 1:00 PM CST for Baldwin County, Mobile County, Washington County, Alabama; 26 parishes in Louisiana; 13 counties in Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Mar 29, 2000, 1:00 PM CST (19:00 UTC)
Expired: Mar 29, 2000, 6:00 PM CST
In force: 5 hr
Issued by: the Storm Prediction Center

All 42 counties

Baldwin County, AL, Mobile County, AL, Washington County, AL, Acadia Parish, LA, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Vermilion Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Stone County, MS, Walthall County, MS

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Mar 29, 1:23 PM CST	Severe Thunderstorm Warning	MOB	Stone	52 min
Mar 29, 2:01 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	59 min
Mar 29, 2:56 PM CST	Severe Thunderstorm Warning	LIX	Jackson	34 min
Mar 29, 2:59 PM CST	Flash Flood Warning	MOB	Mobile	3 hr
Mar 29, 3:02 PM CST	Severe Thunderstorm Warning	MOB	Mobile	58 min
Mar 29, 3:34 PM CST	Tornado Warning	LIX	Saint John the Baptist	56 min
Mar 29, 3:44 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	46 min
Mar 29, 3:55 PM CST	Tornado Warning	MOB	Mobile	50 min
Mar 29, 4:14 PM CST	Tornado Warning	MOB	Baldwin	76 min

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.0 hours before the alert went out and 106 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1754 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

046 
WWUS9 KMKC 291831
SEL4  

SEL4  
MKC WW 291827
ALZ000-LAZ000-MSZ000-CWZ000-300000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 134
STORM PREDICTION CENTER NORMAN OK
1227 PM CST WED MAR 29 2000

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

   SOUTHWEST ALABAMA                            
   SOUTHERN LOUISIANA                          
   SOUTHEAST MISSISSIPPI                        
   COASTAL WATERS                     

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
600 PM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 50 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 50 MILES WEST OF LAFAYETTE LOUISIANA TO 40
MILES EAST NORTHEAST OF MOBILE ALABAMA.

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.


DISCUSSION...18Z SOUNDINGS AND LOCAL VWP PROFILES INDICATE
FAVORABLE ENVIRONMENT IN PLACE WITH DEVELOPMENT OF SUPER CELLS AND
ISOLATED TORNADOS SRN LA INTO SWRN AL.  STORMS EXPECTED TO RAPIDLY
DEVELOP IN VERY UNSTABLE AIRMASS WITH CAPES TO 3000 J/KG WITH
GREATEST SUPER CELL POTENTIAL VICINITY E/W BOUNDARY SRN MS/LA
BORDER EWD.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. 
MEAN STORM MOTION VECTOR 25035.


...HALES

301,0873 292,0924 305,0924 313,0873

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 8:00 PM CST	Severe Thunderstorm Watch	SPC	Bossier, Caddo, De Soto	5 hr
Mar 29, 1:30 PM CST	Tornado Watch	SPC	Bienville, Bossier, Caddo, De Soto, Natchitoches, Red River and 2 more	7 hr

Nearby

Tornado Watches in Louisiana, 2000 Tornado Watches in Mississippi, 2000 Tornado Watches in Alabama, 2000 Every tornado watch in 2000

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.