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WWUS20 KWNS 260702

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ILZ000-INZ000-KYZ000-MOZ000-261400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 554

NWS STORM PREDICTION CENTER NORMAN OK

200 AM CDT SUN JUN 26 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN ILLINOIS

       SOUTHERN INDIANA

       WESTERN AND CENTRAL KENTUCKY

       EASTERN MISSOURI



EFFECTIVE THIS SUNDAY MORNING FROM 200 AM UNTIL 900 AM CDT.



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 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTHEAST

OF LOUISVILLE KENTUCKY TO 55 MILES WEST NORTHWEST OF FARMINGTON

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 550...SEVERE THUNDERSTORM WATCH

NUMBER 553. WATCH NUMBER 550 553 WILL NOT BE IN EFFECT AFTER 200

AM CDT.



DISCUSSION...COMPLEX MCS OVER E CNTRL MO/SRN IL/SW IND EXPECTED TO

CONTINUE GENERALLY ESEWD.  EMBEDDED LEWP/BOW STRUCTURE NOW IN SW

IND/SRN IL SHOULD CONTINUE ESE WITH AN ACCOMPANYING THREAT FOR

LOCALLY DMGG WIND/MARGINALLY SVR HAIL AND PERHAPS A BRIEF TORNADO AS

ACTIVITY IS FED BY PW-RICH WSWLY 40 KT LLJ.  AN ADDITIONAL LEWP/BOW

MAY EVOLVE LATER THIS MORNING FARTHER W...FROM ELEVATED STORMS

FORMING ATTM ATOP QSTNRY PORTION OF ELONGATING COLD POOL IN ERN

MO/SRN IL.  IF SUCH A LEWP DOES EVOLVE...IT TOO SHOULD MOVE ESE OR

PERHAPS SEWD...AFFECTING MAINLY WRN KY WITH SPORADIC DMGG WIND.  IN

THE MEAN TIME...ISOLD DMGG WIND GUSTS...MARGINALLY SVR HAIL...AND

HEAVY RAIN COULD AFFECT E CNTRL/SE MO FOR THE NEXT SEVERAL HOURS AS

STORMS TRAIN ALONG QSTNRY /WRN/ PART OF LARGER SCALE MCS COLD POOL.



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 550. MEAN STORM

MOTION VECTOR 30030.





...CORFIDI

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