Tornado Watch 890

Issued

Nov 23, 2004, 8:15 PM CST (02:15 UTC)

Expired

Nov 24, 2004, 2:00 AM CST

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 2442Nov 23, 5:30 PM CST
• Mesoscale Discussion 2447Nov 23, 7:53 PM CST
• Mesoscale Discussion 2449Nov 23, 9:14 PM CST
• Mesoscale Discussion 2450Nov 23, 10:01 PM CST
• Mesoscale Discussion 2453Nov 24, 1:28 AM CST

942 
WWUS20 KWNS 240216
SEL0  
SPC WW 240215
LAZ000-MSZ000-240800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 890
NWS STORM PREDICTION CENTER NORMAN OK
815 PM CST TUE NOV 23 2004

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

       CENTRAL AND EASTERN LOUISIANA
       WESTERN AND CENTRAL MISSISSIPPI

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 815 PM
UNTIL 200 AM CST.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 1.5 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES NORTH NORTHWEST OF JACKSON MISSISSIPPI TO
60 MILES SOUTHEAST OF FORT POLK 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...CONTINUE...WW 887...WW 888...WW 889...

DISCUSSION...THREAT FOR TORNADOES EXPECTED TO PERSIST WITH
SUPERCELLS WITHIN QUASI LINEAR MCS IN ERN LA/WRN MS...WHERE DEEP
SHEAR WILL STRENGTHEN TO NEAR 70 KT WITH CONTINUED NEWD MOVEMENT OF
STRONG UPSTREAM WIND FIELD.  OTHER SUPERCELLS MAY DEVELOP LATER
TONIGHT/EARLY WEDNESDAY INVOF RETREATING OUTFLOW BOUNDARY/COASTAL
FRONT ORIENTED MORE WSW/ESE ACROSS CNTRL LA AS FORCING AS STRONG
DPVA AREA NOW OVER E TX CONTINUES ENEWD.  RICH GULF MOISTURE SUPPLY
AND ORIENTATION OF SHEAR PARALLEL TO CONVECTIVE BANDS COULD YIELD
ONE OR TWO STRONG TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25035.


...CORFIDI

325,0885 302,0905 302,0935 325,0915

Tornado Watches in Louisiana, 2004Tornado Watches in Mississippi, 2004Every tornado watch in 2004

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.