WATCHES: Tornado Watch Number 955

WWUS20 KWNS 270355
SEL5
SPC WW 270355
KSZ000-MOZ000-271100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 955
NWS STORM PREDICTION CENTER NORMAN OK
955 PM CST FRI DEC 26 2008

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

EAST CENTRAL AND SOUTHEAST KANSAS
WESTERN MISSOURI

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 955 PM
UNTIL 500 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 APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 65 MILES NORTHEAST OF KANSAS
CITY MISSOURI TO 60 MILES SOUTHWEST OF CHANUTE KANSAS. 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.

DISCUSSION...ISOLATED THUNDERSTORMS ARE BEGINNING TO DEVELOP IN
SHORT BANDS FROM ERN KS INTO WRN MO. THIS CONVECTION IS LIKELY
ROOTED JUST ABOVE THE SURFACE AND ALONG THE W EDGE OF THE RICHEST
LOW-LEVEL MOISTURE...BUT THE THREAT FOR SURFACE-BASED STORMS WILL
INCREASE AS DESTABILIZATION AND ASCENT CONTINUE OVERNIGHT WITH THE
APPROACH OF A DEEP MID LEVEL TROUGH FROM CO/NM. VERTICAL SHEAR IS
FAVORABLE FOR SUPERCELLS WITH THE INITIAL PRE-FRONTAL
CONVECTION...AND THESE STORMS WILL BE CAPABLE OF PRODUCING A COUPLE
OF TORNADOES AND DAMAGING WINDS...AS WELL AS ISOLATED LARGE HAIL.
ADDITIONAL STORMS WILL LIKELY FORM LATER TONIGHT AND FARTHER TO THE
W IN KS ALONG A COLD FRONT...AND EVOLVE INTO A LINE WITH EMBEDDED
BOW/SUPERCELL STRUCTURES.

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.

...THOMPSON

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.