FXUS61 KGYX 091856 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 256 PM EDT SAT MAY 9 2009 .SYNOPSIS... LOW PRESSURE WILL CROSS FAR NORTHERN NEW ENGLAND TONIGHT AS A TRAILING COLD FRONT MOVES EAST ACROSS THE REGION. THE LOW WILL EXIT INTO THE MARITIMES SUNDAY. A WEAK AREA OF LOW PRESSURE AT THE SURFACE AND ALOFT WILL KEEP UNSETTLED WEATHER ACROSS THE AREA MONDAY AND INTO TUESDAY. HIGH PRESSURE AND DRIER AIR WILL BUILD ACROSS THE REGION WEDNESDAY INTO THURSDAY. A COLD FRONT WILL CROSS THE AREA THURSDAY AND THURSDAY NIGHT. HIGH PRESSURE WILL FOLLOW FOR FRIDAY AND SATURDAY. && .NEAR TERM /THROUGH TONIGHT/... UPPER SHORT WAVE WITH AN ASSOCIATED COLD FRONT WILL BE MOVING THRU THE AREA TONIGHT...SUFFICIENT DYNAMICS IN PLACE FOR SOME TSTMS TO DEVELOP BUT STGST STORM POT WILL BE IN SRN/CNTRL NH AS PER SPC DISCUSSION. ALSO FOR TIMING BEST DYNAMICS MOVE ACROS OUR CWA BETWEEN 22Z-04Z. FRZG LEVEL RATHER LOW SO HAIL CERTAINLY A POSSIBILITY WITH MANY OF THE STMS...BEST WIND FIELD WILL ALSO BE ENTERING OUR CWA TWD EVENING. AN 18Z GYX UPPER AIR BALLON WAS LAUNCHED FOR ADDITIONAL GUIDANCE SUPPORT. VERY HIGH POPS ACCEPTED FOR TNGT. STAYED CLOSE TO MAV OVERNIGHT LOWS. && .SHORT TERM /SUNDAY/... COLD CYCLONIC FLOW IN THE WAKE OF THE EXITING UPPER LOW WILL ALLOW PLENTY OF INTSTBLTY CLOUDS/SHWRS TO DVLP IN THE MTNS AND LESS NUMEROUS ALONG THE COASTAL PLAIN. GUSTY WINDS ARE EXPECTED AS WELL SUNDAY DUE TO THE COMBO OF THE GRAD WNDS AND COLD POOL ALOFT. TEMPS WILL BE COOLER SUNDAY AS PER MET/MAV SUGGEST. && .LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/... A SURFACE TROUGH AND ASSOCIATED MOISTURE WILL EXTEND WESTWARD FROM THE AREA OF LOW PRESSURE MOVING THROUGH THE CANADIAN MARITIMES MONDAY. THE SLOW MOVEMENT OF THIS TROUGH WILL KEEP THE THREAT OF SCATTERED SHOWERS IN THE FORECAST FOR MONDAY. AS HIGH PRESSURE BUILDS ACROSS THE REGION TUESDAY...THE THREAT OF SHOWERS WILL DIMINISH. HIGH PRESSURE BUILDS ACROSS THE REGION FOR WEDNESDAY WITH FAIR BUT COOL WEATHER. AS THE HIGH MOVES OFF THE COAST WEDNESDAY NIGHT AND THURSDAY...A COLD FRONT WILL APPROACH AND CROSS THE AREA WITH A THREAT OF SHOWERS. BY FRIDAY...THE FRONT WILL BE OFF THE COAST AND HIGH PRESSURE WILL BUILD INTO THE REGION FOR THE WEEKEND. && .AVIATION /17Z SATURDAY THROUGH WEDNESDAY/... SHORT TERM (TONIGHT AND SUNDAY)...MVFR TO IFR CONDITIONS TONIGHT IN SHWRS/TSTMS IMPROVING SOME LATER TONIGHT BEHIND THE FROPA. CONDS WILL BECOME VFR BY MORNING BUT OCNLY MVFR IN ANY INSTBLTY SHWRS THRU THE DAY. LONG TERM (SUNDAY NIGHT THROUGH WEDNESDAY)...MAINLY VFR CONDITIONS WITH SOME MVFR CONDITIONS IN SCATTERED SHOWERS THROUGH MONDAY NIGHT. MAINLY VFR CONDITIONS TUESDAY THROUGH WEDNESDAY. && .MARINE... SHORT TERM...WINDS WILL REMAIN LIGHT FROM THE SOUTH AHD OF THE COLD FRONT THIS EVENING THEN SHIFT TO W BEHIND THE FRONT LATER TONIGHT AND THEN INCREASE INTO SCA CRIT CONDS BY SUNDAY MRNG WITH SOME GUSTS APPROACHING GALE FORCE BUT OVERALL EXPECT STG SCA CONDS THRU THE DAY SUNDAY. LONG TERM...WINDS AND SEAS WILL DIMINISH SUNDAY NIGHT WITH LIGHT WINDS FROM MONDAY AFTERNOON THROUGH WEDNESDAY. SOUTHWEST WINDS WILL INCREASE THURSDAY AHEAD OF A COLD FRONT. WINDS ARE THEN EXPECTED TO BE LIGHT FROM FRIDAY THROUGH SUNDAY. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...SMALL CRAFT ADVISORY FROM 8 AM TO 8 PM EDT SUNDAY FOR ANZ150>154. && $$