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411 

WWUS20 KWNS 221714

SEL8

SPC WW 221714

MEZ000-230100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 408

NWS STORM PREDICTION CENTER NORMAN OK

115 PM EDT FRI JUL 22 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHERN AND CENTRAL MAINE



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 115 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



SUMMARY...STRONG STORMS ARE EXPECTED TO INCREASE IN COVERAGE AND

INTENSIFY THIS AFTERNOON IN ADVANCE OF A WEATHER DISTURBANCE MOVING

ACROSS THE LOWER ST. LAWRENCE RIVER VALLEY.  AN ADDITIONAL SEVERE

THREAT MAY DEVELOP LATER THIS AFTERNOON IN ASSOCIATION WITH A SECOND

DISTURBANCE THAT WILL APPROACH THE AREA FROM THE WEST.  STRONGER

STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND

OCCASIONAL HAIL.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EITHER SIDE OF A LINE FROM 90 MILES WEST OF CARIBOU

MAINE TO 10 MILES EAST NORTHEAST OF HOULTON MAINE.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU8).



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.



&&



AVIATION...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 450. MEAN STORM

MOTION VECTOR 26025.





...WEISS

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