

629 

WWUS20 KWNS 222033

SEL9

SPC WW 222033

ILZ000-MOZ000-230300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 179

NWS STORM PREDICTION CENTER NORMAN OK

335 PM CDT FRI APR 22 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WEST CENTRAL ILLINOIS

       CENTRAL AND SOUTHWEST MISSOURI



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 335 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3 INCHES 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 40 MILES SOUTHEAST OF MONETT

MISSOURI TO 55 MILES NORTH NORTHWEST OF SAINT LOUIS MISSOURI.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 178...



DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS AFTERNOON

ALONG AND AHEAD OF A SURFACE COLD FRONT OVER WESTERN MO.  THESE

STORMS WILL LIKELY BECOME SUPERCELLULAR AND SPREAD EASTWARD ACROSS

THE WATCH AREA.  LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THE

STRONGEST STORMS.  ALSO...STRENGTHENING LOW LEVEL WIND FIELDS

THROUGH THE EVENING WILL POSE A RISK OF A FEW TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 26035.





...HART

