WATCHES: Severe Thunderstorm Watch Number 423

WWUS20 KWNS 192011
SEL3
SPC WW 192011
MEZ000-NHZ000-NYZ000-VTZ000-200300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 423
NWS STORM PREDICTION CENTER NORMAN OK
410 PM EDT FRI JUL 19 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND NORTHERN MAINE
NORTHERN NEW HAMPSHIRE
FAR NORTHERN NEW YORK
NORTHERN VERMONT

* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 410 PM UNTIL
1100 PM EDT.

* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTHWEST
OF MASSENA NEW YORK TO 195 MILES EAST NORTHEAST OF NEWPORT
VERMONT. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 422...

DISCUSSION...A SQUALL LINE ACROSS SW ONTARIO AND SRN QUEBEC WILL
MOVE ESEWD THIS EVENING AND CROSS THE INTERNATIONAL BORDER BY ABOUT
22Z. THE MORE INTENSE N-S LINE SEGMENTS HAVE BEEN MOVING AT 50-55
KT AND WILL HAVE THE POTENTIAL TO PRODUCE DAMAGING GUSTS FOR THE
NEXT SEVERAL HOURS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION
VECTOR 27050.


...THOMPSON

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