

534 

WWUS20 KWNS 271952

SEL5

SPC WW 271952

ARZ000-ILZ000-KYZ000-MOZ000-280100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 965

NWS STORM PREDICTION CENTER NORMAN OK

150 PM CST SAT DEC 27 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND NORTHEASTERN ARKANSAS

       SOUTHERN ILLINOIS

       FAR WESTERN KENTUCKY

       SOUTHEAST MISSOURI INCLUDING THE BOOTHEEL



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 150 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 APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF MOUNT

VERNON ILLINOIS TO 15 MILES SOUTH OF LITTLE ROCK ARKANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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 960. WATCH NUMBER 960 WILL NOT BE IN EFFECT AFTER

150 PM CST. CONTINUE...WW 961...WW 962...WW 963...WW 964...



DISCUSSION...BROKEN LINE OF TSTMS WILL LIKELY CONTINUE RACING ENEWD

AHEAD OF STRONG SURFACE COLD FRONT AS DEEP ASCENT ASSOCIATED WITH

EJECTING UPPER TROUGH SKIRTS THE AREA.  WINDS ALOFT ARE VERY STRONG

AND WILL LIKELY MIX DOWNWARD FROM CONVECTIVE PROCESSES...SUPPORTING

THREAT OF WIND DAMAGE UNTIL COOLING/STABILIZING OF BOUNDARY LAYER

COMMENCES LATER THIS EVENING.  IN ADDITION...EXTREME SHEAR WARRANTS

THREAT OF ISOLATED TORNADOES WITH THE MORE ORGANIZED STORMS.



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 450.

MEAN STORM MOTION VECTOR 23045.





...EVANS



534 

WWUS20 KWNS 271952

SEL5

SPC WW 271952

ARZ000-ILZ000-KYZ000-MOZ000-280100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 965

NWS STORM PREDICTION CENTER NORMAN OK

150 PM CST SAT DEC 27 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND NORTHEASTERN ARKANSAS

       SOUTHERN ILLINOIS

       FAR WESTERN KENTUCKY

       SOUTHEAST MISSOURI INCLUDING THE BOOTHEEL



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 150 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 APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF MOUNT

VERNON ILLINOIS TO 15 MILES SOUTH OF LITTLE ROCK ARKANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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 960. WATCH NUMBER 960 WILL NOT BE IN EFFECT AFTER

150 PM CST. CONTINUE...WW 961...WW 962...WW 963...WW 964...



DISCUSSION...BROKEN LINE OF TSTMS WILL LIKELY CONTINUE RACING ENEWD

AHEAD OF STRONG SURFACE COLD FRONT AS DEEP ASCENT ASSOCIATED WITH

EJECTING UPPER TROUGH SKIRTS THE AREA.  WINDS ALOFT ARE VERY STRONG

AND WILL LIKELY MIX DOWNWARD FROM CONVECTIVE PROCESSES...SUPPORTING

THREAT OF WIND DAMAGE UNTIL COOLING/STABILIZING OF BOUNDARY LAYER

COMMENCES LATER THIS EVENING.  IN ADDITION...EXTREME SHEAR WARRANTS

THREAT OF ISOLATED TORNADOES WITH THE MORE ORGANIZED STORMS.



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 450.

MEAN STORM MOTION VECTOR 23045.





...EVANS

