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000 

WWUS20 KWNS 211537

SEL6

SPC WW 211537

INZ000-KYZ000-OHZ000-LEZ000-212300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 716

NWS STORM PREDICTION CENTER NORMAN OK

1140 AM EDT MON JUL 21 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST INDIANA

       PARTS OF NORTHERN KENTUCKY

       LARGE PART OF WESTERN AND NORTHERN OHIO

       LAKE ERIE



EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1140 AM UNTIL 700

PM EDT.



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 70

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST

NORTHWEST OF CLEVELAND OHIO TO 30 MILES SOUTH OF CINCINNATI OHIO.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 714...WW 715...



DISCUSSION...ORGANIZED CONVECTIVE COMPLEX MOVING RAPIDLY ESEWD

ACROSS NRN IND EXPECTED TO INTENSIFY AS AIR MASS DESTABILIZES ACROSS

WATCH AREA UNDER STRONG SURFACE HEATING.  WIND DAMAGE WILL CONTINUE

TO BE THE PRIMARY THREAT ALONG THE LEADING LINE OF THUNDERSTORMS AS

DEEP LAYER SHEAR OF 40-50KT IS AVAILABLE.



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 500. MEAN STORM

MOTION VECTOR 28040.





...HALES

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