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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 880

NWS STORM PREDICTION CENTER NORMAN OK

330 PM EST MON NOV 14 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL OHIO

       NORTHWEST PENNSYLVANIA

       LAKE ERIE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 330 PM UNTIL

1100 PM EST.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST OF

FINDLAY OHIO TO 15 MILES EAST NORTHEAST OF FRANKLIN PENNSYLVANIA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 879...



DISCUSSION...LEAD SURFACE LOW NEAR TOL WILL CONTINUE TO DEVELOP

ENEWD ALONG WARM FRONT LIFTING NWD TOWARD THE SHORE OF LAKE ERIE.

WAA AND ISALLOBARIC FORCING IN ADVANCE OF THIS LOW WILL ALIGN WITH A

MARGINALLY UNSTABLE AIR MASS TO SUPPORT THE EWD MOVEMENT/DEVELOPMENT

OF TSTMS ACROSS THE WATCH AREA.  GIVEN THE VERY STRONG WIND FIELD IN

PLACE...THE POTENTIAL WILL EXIST FOR EMBEDDED SUPERCELL AND BOWING

STRUCTURES CAPABLE OF A FEW TORNADOES AND DAMAGING WINDS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 26050.





...MEAD

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