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964 

WWUS20 KWNS 272203

SEL5

SPC WW 272203

ILZ000-MOZ000-280200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 425

NWS STORM PREDICTION CENTER NORMAN OK

505 PM CDT SUN JUN 27 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL ILLINOIS

       CENTRAL AND SOUTHWEST MISSOURI



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 505 PM UNTIL 900

PM CDT.



HAIL TO 2 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 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTHWEST

OF MONETT MISSOURI TO 40 MILES SOUTH OF DANVILLE ILLINOIS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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...CONTINUE...WW 423...WW 424...



DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING IN COVERAGE AND

INTENSITY ACROSS MUCH OF MO AND CENTRAL IL...ALONG SEVERAL WEAK

CONFLUENCE AXES.  A VERY MOIST/UNSTABLE AIRMASS AND RELATIVELY STEEP

LOW LEVEL LAPSE RATES WILL PROMOTE WEAKLY ORGANIZED STORMS MOVING

ACROSS THE WATCH AREA...CAPABLE OF GUSTY/DAMAGING WINDS AND HAIL.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27025.





...HART

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