

905 

WWUS20 KWNS 261815

SEL7

SPC WW 261815

MEZ000-NHZ000-CWZ000-270100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 187

NWS STORM PREDICTION CENTER NORMAN OK

215 PM EDT MON MAY 26 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  MUCH OF MAINE

  NORTHERN NEW HAMPSHIRE

  COASTAL WATERS



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 115

STATUTE MILES EITHER SIDE OF A LINE FROM 110 MILES NORTH

NORTHEAST OF BERLIN NEW HAMPSHIRE TO 25 MILES EAST OF BAR HARBOR

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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.



&&



DISCUSSION...TSTMS FORMING IN MODERATE TO STRONGLY SHEARED...MODEST

CAPE ENVIRONMENT MAY PRODUCE SVR HAIL...LOCALLY DMGG WIND...AND

PERHAPS A BRIEF TORNADO OVER PARTS OF ME AND NRN NH TODAY AS REGION

IS GLANCED BY SEASONABLY STRONG...SE-MOVING UPR VORT OVER SRN QUE.

COUPLED WITH STEEPENING LOW-LVL LAPSE RATES AND WEAK LOW-LVL

CONFLUENCE...50+ KT WNWLY DEEP SHEAR MAY YIELD A FEW

SUPERCELLS/SUSTAINED STORMS THROUGH EARLY EVE.



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 32040.





...CORFIDI

