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192 

WWUS20 KWNS 012137

SEL7

SPC WW 012137

OHZ000-LEZ000-020300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 447

NWS STORM PREDICTION CENTER NORMAN OK

540 PM EDT SUN JUL 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST OHIO

       LAKE ERIE



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 540 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 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTH

SOUTHWEST OF TOLEDO OHIO TO 35 MILES EAST OF MANSFIELD OHIO.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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...WW 446...



DISCUSSION...THUNDERSTORMS ARE INCREASING OVER NORTHEAST

IND/SOUTHEAST LOWER MI AND OVER WESTERN LAKE ERIE.  THESE STORMS ARE

EXPECTED TO TRACK SOUTHEASTWARD FOR SEVERAL HOURS AND AFFECT

NORTHWEST OH.  HOT SURFACE TEMPERATURES...MODERATE INSTABILITY...AND

FAVORABLE WINDS ALOFT WILL PROMOTE A RISK OF A FEW SEVERE STORMS

CAPABLE OF 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 500. MEAN STORM

MOTION VECTOR 30030.





...HART

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