

372 

WWUS20 KWNS 012224

SEL0

SPC WW 012224

INZ000-OHZ000-LEZ000-020300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 320

NWS STORM PREDICTION CENTER NORMAN OK

625 PM EDT MON JUN 1 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR EAST-CENTRAL INDIANA

       NORTHWEST INTO CENTRAL OHIO

       LAKE ERIE



EFFECTIVE THIS MONDAY EVENING FROM 625 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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES EAST

NORTHEAST OF TOLEDO OHIO TO 20 MILES SOUTHEAST OF DAYTON OHIO.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 318...WW 319...



DISCUSSION...CLUSTER OF STRONG/SEVERE STORMS EXPECTED TO CONTINUE

ESEWD ACROSS WW THIS EVENING AHEAD OF WEAK SHORTWAVE TROUGH...WHERE

MODERATE TO MARGINAL INSTABILITY IS IN PLACE.  SHEAR REMAINS QUITE

STRONG WITH SUFFICIENT SHEAR FOR BOTH SUPERCELLS AND BOWING

STRUCTURES...WITH PRIMARY THREATS OF LARGE HAIL AND DAMAGING WINDS.



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 450. MEAN STORM

MOTION VECTOR 27025.





...EVANS

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