WATCHES: Severe Thunderstorm Watch Number 561

WWUS20 KWNS 042346
SEL1
SPC WW 042346
INZ000-OHZ000-LEZ000-050600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 561
NWS STORM PREDICTION CENTER NORMAN OK
750 PM EDT SAT AUG 4 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

EXTREME EASTERN INDIANA
NORTHERN OHIO
LAKE ERIE

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 750 PM
UNTIL 200 AM 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 30 MILES NORTHEAST OF
TOLEDO OHIO TO 45 MILES WEST OF COLUMBUS OHIO. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU1).

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 558...WW 559...WW 560...

DISCUSSION...CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS CONTINUE TO
TRACK EASTWARD ACROSS NORTHERN IND TOWARD THE WATCH AREA.
SUFFICIENT INSTABILITY IS IN PLACE ACROSS NORTHERN OH FOR STORMS TO
MAINTAIN INTENSITY FOR A FEW MORE HOURS...BEFORE DIURNAL COOLING
SLOWLY WEAKENS THE STORMS.

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 27035.


...HART

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