

000 

WWUS20 KWNS 081541

SEL9

SPC WW 081541

INZ000-MIZ000-OHZ000-LEZ000-LHZ000-082300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 369

NWS STORM PREDICTION CENTER NORMAN OK

1140 AM EDT FRI JUN 8 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST INDIANA

       PARTS OF SOUTHEAST LOWER MICHIGAN

       MUCH OF NORTHERN AND CENTRAL OHIO

       LAKE ERIE

       LAKE HURON



EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1140 AM UNTIL 700

PM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH

NORTHWEST OF FORT WAYNE INDIANA TO 55 MILES NORTH OF YOUNGSTOWN

OHIO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 367...WW 368...



DISCUSSION...WITH MLCAPES AOA 2000 J/KG AND LITTLE REMAINING

CINH...THUNDERSTORMS EXPECT TO RAPIDLY INCREASE IN NUMBER AND

INTENSITY AHEAD OF COLD FRONT NOW INTO NWRN IND.  40-50 KT OF DEEP

LAYER SHEAR ASSOCIATED WITH TROUGH MOVING ACROSS GREAT LAKES WILL

SUPPORT STORMS EVOLVING INTO BOTH LINE SEGMENTS AND BOW WITH

ENHANCED WIND DAMAGE THREAT.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 24040.





...HALES

