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WWUS20 KWNS 012032

SEL6

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OHZ000-WVZ000-020300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 446

NWS STORM PREDICTION CENTER NORMAN OK

435 PM EDT SUN JUL 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHEAST OHIO

       NORTHWEST WEST VIRGINIA



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 435 PM UNTIL

1100 PM EDT.



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 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF

COLUMBUS OHIO TO 45 MILES EAST SOUTHEAST OF PARKERSBURG WEST

VIRGINIA.  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 442...WW 443...WW

444...WW 445...



DISCUSSION...MCS ACROSS E CENTRAL INDIANA WILL LIKELY CONTINUE TO

MOVE ESEWD ACROSS CENTRAL/SE OH AND EVENTUALLY NW WV THROUGH LATE

EVENING.  THE STORMS ARE EXPECTED TO TRACK ALONG A CORRIDOR OF

MODERATE INSTABILITY /MLCAPE OF 2500-3000 J PER KG/...IN A ZONE OF

30-40 KT EFFECTIVE BULK SHEAR WHICH WILL HELP MAINTAIN AN ORGANIZED

CONVECTIVE SYSTEM.  DAMAGING WINDS AND LARGE HAIL CAN BE EXPECTED

FOR THE NEXT FEW HOURS.



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 29035.





...THOMPSON

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