Alert archive / Louisiana / Tornado Watches in 2000

Tornado Watch 786

November 8, 200033 parishes in Louisiana

The Storm Prediction Center issued this tornado watch at Nov 8, 2000, 12:00 PM CST for 33 parishes in Louisiana. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 8, 2000, 12:00 PM CST (18:00 UTC)
Expired: Nov 8, 2000, 6:00 PM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 33 counties

Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Calcasieu Parish, LA, Caldwell Parish, LA, Cameron Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Richland Parish, LA, Saint Landry Parish, LA, Tensas Parish, LA, Union Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, West Carroll Parish, LA, Winn Parish, LA

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Nov 8, 12:02 PM CST	Tornado Warning	LCH	Vernon	58 min
Nov 8, 12:58 PM CST	Tornado Warning	LCH	Beauregard, Vernon	62 min
Nov 8, 1:05 PM CST	Severe Thunderstorm Warning	JAN	Catahoula	25 min
Nov 8, 1:16 PM CST	Tornado Warning	JAN	Catahoula	29 min
Nov 8, 1:45 PM CST	Tornado Warning	JAN	Catahoula	30 min
Nov 8, 1:55 PM CST	Tornado Warning	JAN	Franklin	50 min
Nov 8, 2:13 PM CST	Tornado Warning	JAN	Tensas	47 min
Nov 8, 2:37 PM CST	Severe Thunderstorm Warning	JAN	Madison	38 min
Nov 8, 2:50 PM CST	Tornado Warning	JAN	Madison	40 min
Nov 8, 3:17 PM CST	Severe Thunderstorm Warning	SHV	Grant, LaSalle	58 min
Nov 8, 3:27 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu	63 min
Nov 8, 3:40 PM CST	Severe Thunderstorm Warning	LCH	Beauregard	65 min
Nov 8, 4:09 PM CST	Tornado Warning	JAN	Concordia	51 min

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.0 hours before the alert went out and 99 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: 935 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

052 
WWUS9 KMKC 081740
SEL6  

SEL6  
MKC WW 081733
LAZ000-CWZ000-090000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 786
STORM PREDICTION CENTER NORMAN OK
1133 AM CST WED NOV 8 2000

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

   NORTHERN AND WESTERN LOUISIANA                          
   COASTAL WATERS                     

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

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

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF LAKE CHARLES LOUISIANA
TO 35 MILES NORTH OF MONROE LOUISIANA.

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 785.  WATCH NUMBER 785 WILL NOT BE IN EFFECT AFTER NOON CST.

DISCUSSION...LINE OF STRONG/SEVERE STORMS FROM EXTREME SERN TX INTO
NWRN LA IS EXPECTED TO MOVE SLOWLY EWD THIS AFTERNOON.  SURFACE LOW
OVER EXTREME SERN TX IS FORECAST TO MOVE NNEWD INTO NRN LA THIS
AFTERNOON...WITH WARM FRONT NOW ACROSS CENTRAL LA LIFTING NWD 
ACROSS WEST CENTRAL MS INTO NRN LA.  AIR MASS IN THE WARM SECTOR IS
MOIST/UNSTABLE WITH DEW POINTS IN THE LOW 70S AND SBCAPE OF 2000-
3000 J/KG.  WIND PROFILES INDICATE STRONG VERTICAL SHEAR AND
HELICITY SUPPORTIVE OF SEVERE STORMS INCLUDING SUPERCELLS. 
TORNADIC THREAT MAY BE ENHANCED ALONG/JUST NORTH OF THE WARM FRONT
WHERE BACKED LOW LEVEL WINDS FURTHER ENHANCE HELICITY.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 24035.


...WEISS

293,0935 330,0930 330,0905 293,0915

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 8, 12:00 AM CST	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 7 more	6 hr
Nov 8, 1:45 AM CST	Severe Thunderstorm Watch	SPC	Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 15 more	4 hr
Nov 8, 6:00 AM CST	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 11 more	6 hr
Nov 8, 3:00 PM CST	Tornado Watch	SPC	Madison	6 hr

Nearby

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.