Alert archive / Texas / Tornado Watches in 2000

Tornado Watch 783

November 8, 200013 parishes in Louisiana; 15 counties in Texas

The Storm Prediction Center issued this tornado watch at Nov 8, 2000, 12:00 AM CST for 13 parishes in Louisiana; 15 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 8, 2000, 12:00 AM CST (06:00 UTC)
Expired: Nov 8, 2000, 6:00 AM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 28 counties

Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Vernon Parish, LA, Brazoria County, TX, Chambers County, TX, Colorado County, TX, Fort Bend County, TX, Galveston County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Matagorda County, TX, Newton County, TX, Orange County, TX, Wharton County, TX

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
Nov 8, 12:45 AM CST	Tornado Warning	LCH	Newton	45 min
Nov 8, 1:07 AM CST	Tornado Warning	LCH	Vernon	53 min
Nov 8, 1:16 AM CST	Tornado Warning	LCH	Hardin	59 min
Nov 8, 1:50 AM CST	Severe Thunderstorm Warning	LCH	Jasper	40 min
Nov 8, 2:16 AM CST	Severe Thunderstorm Warning	LCH	Newton	44 min
Nov 8, 2:32 AM CST	Tornado Warning	LCH	Beauregard	43 min
Nov 8, 3:04 AM CST	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	56 min
Nov 8, 3:53 AM CST	Severe Thunderstorm Warning	LCH	Allen, Rapides	67 min
Nov 8, 5:27 AM CST	Severe Thunderstorm Warning	LCH	Avoyelles	63 min

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.0 hours before the alert went out and 141 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: 667 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 820 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 336 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

485 
WWUS9 KMKC 080548
SEL3  

SEL3  
MKC WW 080544
LAZ000-TXZ000-CWZ000-081200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 783
STORM PREDICTION CENTER NORMAN OK
1144 PM CST TUE NOV 7 2000

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

   SOUTHERN LOUISIANA                          
   SOUTHEAST TEXAS                              
   COASTAL WATERS                     

EFFECTIVE THIS WEDNESDAY MORNING FROM MIDNIGHT CST UNTIL 600 AM
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 45 STATUTE MILES EITHER SIDE OF
A LINE FROM 20 MILES WEST NORTHWEST OF PALACIOS TEXAS TO 45 MILES
EAST SOUTHEAST OF ALEXANDRIA 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.


DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INCREASE VICINITY OF
FRONTAL ZONE SERN TX INTO SRN LA.  AIRMASS VERY MOIST AND UNSTABLE
WITH INCREASINGLY FAVORABLE SHEAR PROFILES FOR TORNADIC SUPERCELLS
AS LOW LEVEL JET INCREASES TO 40KT AHEAD OF STRONG UPPER TROUGH.


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 550. 
MEAN STORM MOTION VECTOR 22030.


...HALES

292,0965 314,0915 303,0911 281,0961

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
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, 12:00 PM CST	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Bienville, Calcasieu and 27 more	6 hr
Nov 8, 3:00 PM CST	Tornado Watch	SPC	Madison	6 hr

Nearby

Tornado Watches in Texas, 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.