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WWUS20 KWNS 030113

SEL6

SPC WW 030113

INZ000-MIZ000-LMZ000-030600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 256

NWS STORM PREDICTION CENTER NORMAN OK

915 PM EDT FRI MAY 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF NORTHERN INDIANA

       LARGE PART OF LOWER MICHIGAN

       LAKE MICHIGAN



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 915 PM

UNTIL 200 AM EDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

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

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF ROBEN

HOOD MICHIGAN TO 45 MILES WEST SOUTHWEST OF FORT WAYNE INDIANA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 253...WW 254...WW 255...



DISCUSSION...THUNDERSTORMS ARE INCREASING ALONG COLD FRONT EXTENDING

SWD THRU SRN LM INTO NWRN IND.  WITH STRONG SHEAR IN PLACE AND

ADEQUATE INSTABILITY...POTENTIAL FOR EMBEDDED LOW TOPPED SUPERCELLS

WITHIN LINE OF STORMS ALONG FRONT.  TORNADOS ALONG WITH DAMAGING

WINDS ARE POSSIBLE WITH THE SUPERCELLS THAT DEVELOP.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

400. MEAN STORM MOTION VECTOR 23035.





...HALES

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