Alert archive / Mississippi / Tornado Watches in 2000

Tornado Watch 782

November 6, 20005 counties in Alabama; Plaquemines Parish, Saint Bernard Parish, Louisiana; 8 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Nov 6, 2000, 2:30 PM CST for 5 counties in Alabama; Plaquemines Parish, Saint Bernard Parish, Louisiana; 8 counties in Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Nov 6, 2000, 2:30 PM CST (20:30 UTC)
Expired: Nov 6, 2000, 7:00 PM CST
In force: 5 hr
Issued by: the Storm Prediction Center

Counties Baldwin County, AL, Clarke County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Plaquemines Parish, LA, Saint Bernard Parish, LA, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Nov 6, 2:30 PM CST	Tornado Warning	LIX	Hancock	30 min
Nov 6, 3:05 PM CST	Severe Thunderstorm Warning	LIX	Plaquemines	25 min

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 78 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: 253 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

605 
WWUS9 KMKC 062024
SEL2  

SEL2  
MKC WW 062015
ALZ000-LAZ000-MSZ000-CWZ000-070100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 782
STORM PREDICTION CENTER NORMAN OK
215 PM CST MON NOV 6 2000

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

   SOUTHWEST ALABAMA                            
   EXTREME SOUTHEAST LOUISIANA                          
   SOUTHEAST MISSISSIPPI                        
   COASTAL WATERS                     

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 700
PM CST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO
70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 55 STATUTE MILES EAST AND WEST
OF A LINE FROM 35 MILES SOUTH SOUTHEAST OF BOOTHVILLE LOUISIANA TO
55 MILES EAST OF LAUREL 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.


DISCUSSION...LINE OF CELLULAR CONVECTION IS LOCATED ALONG WEST SIDE
OF CONVECTIVE BAND FROM SERN MS INTO SERN LA.  VAD PROFILES FROM
LIX AND MOB SHOW STRONG WINDS THAT VEER WITH HEIGHT...RESULTING IN
LARGE CLOCKWISE TURNING HODOGRAPHS AND STRONG SHEAR/HELICITY IN THE
LOWEST 2-3 KM (SRH OF 250-400 M2/S2).  RADAR HAS DISPLAYED SMALL-
SCALE ROTATION INDICATIVE OF MINIATURE SUPERCELLS...AND ENVIRONMENT
APPEARS FAVORABLE FOR OCCASIONAL SEVERE STORMS CAPABLE OF PRODUCING
DAMAGING WIND GUSTS AND BRIEF TORNADOES. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. 
MEAN STORM MOTION VECTOR 23035.


...WEISS

285,0900 314,0891 314,0871 285,0881

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 5, 8:00 PM CST	Tornado Watch	SPC	Bossier, Caddo, Claiborne, De Soto, Red River, Webster	6 hr
Nov 6, 12:00 AM CST	Tornado Watch	SPC	Allen, Beauregard, Calcasieu, Cameron, Evangeline, Jefferson Davis	5 hr

Nearby

Tornado Watches in Mississippi, 2000 Tornado Watches in Alabama, 2000 Tornado Watches in Louisiana, 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.