WATCHES: Severe Thunderstorm Watch Number 47

WWUS20 KWNS 080351
SEL7
SPC WW 080351
KSZ000-080800-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 47
NWS STORM PREDICTION CENTER NORMAN OK
950 PM CST SAT MAR 7 2009

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

SOUTH CENTRAL INTO EAST CENTRAL KANSAS

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 950 PM
UNTIL 200 AM CST.

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

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH
SOUTHWEST OF HUTCHINSON KANSAS TO 55 MILES NORTH NORTHEAST OF
CHANUTE KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 45. WATCH NUMBER 45 WILL NOT BE
IN EFFECT AFTER 950 PM CST. CONTINUE...WW 46...

DISCUSSION...THUNDERSTORMS WILL CONTINUE TO TRAIN ALONG A
SLOW-MOVING FRONT FROM S CENTRAL INTO E CENTRAL KS FOR THE NEXT FEW
HOURS. A 50 KT LLJ AND EJECTING MID LEVEL TROUGH WILL FOCUS ASCENT
ALONG THE FRONT AND SUPPORT CONTINUED THUNDERSTORM DEVELOPMENT UNTIL
THE SURFACE WAVE LIFTS NEWD INTO MO BY ABOUT 09Z. INSTABILITY AND
VERTICAL SHEAR WILL REMAIN SUFFICIENT FOR THE PRODUCTION OF AT LEAST
ISOLATED LARGE HAIL AND DAMAGING WINDS.

AVIATION...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 450. MEAN STORM
MOTION VECTOR 25040.

...THOMPSON

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