Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 290256 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 956 PM EST SUN DEC 28 2014 .SYNOPSIS...
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A COLD FRONT WILL CROSS THE REGION OVERNIGHT. HIGH PRESSURE WILL BUILD IN FROM THE WEST MONDAY AFTERNOON THROUGH WEDNESDAY. A COLD FRONT WILL APPROACH FROM THE NORTHWEST ON THURSDAY AND WILL CROSS THE REGION ON FRIDAY. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT FRIDAY NIGHT AND WILL SHIFT OFFSHORE ON SATURDAY.
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&& .NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
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955 PM...WAITING ON SECOND COLD FRONT...WHICH LOOKS TO BE IN BETWEEN INTL BORDER AND ST LAWRENCE VLY...EXTENDING SW INTO NW VT AND THE ADIRONDACKS AROUND 02Z. SHOULD CROSS THE CWA BETWEEN 06Z AND 10Z WITH LITTLE IMPACT...OTHER THAN A FEW SHSN IN THE MTNS. HAVE BUMPED UP MINS A BIT ON THE COASTAL PLAIN AS THE WSW FLOW AHEAD OF THE FRONT WILL HOLD AND PREVENT ANY RAD COOLING...AND ALSO KEEP THINS A TOUCH WARMER WITH THE DOWNSLOPE. PREVIOUSLY...COLD FRONT HAS PUSHED OFF SHORE AND A SECONDARY COLD FRONT WILL MOVE OUT OF QUEBEC AND INTO OUR FAR NORTHERN FORECAST ZONES TONIGHT. THIS WILL BRING COLDER AIR BUT ONLY EXPECT A SLIGHT CHANCE OF A SNOW SHOWING IN THE MOUNTAINS WITH THIS FRONT WITH FAVORABLE UPSLOPE FLOW.
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&& .SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/... THE SECONDARY COLD FRONT WILL PUSH THROUGH THE REST OF THE AREA TOMORROW AND HIGH PRESSURE WILL BUILD IN BEHIND IT. ONLY GOING WITH SLIGHT POP ACROSS THE NORTH AND MOUNTAINS AND SHOULD BE MUCH ANYWHERE ELSE. HIGH TEMPERATURES WILL BE ABOUT 10 TO 15 DEGREES COOLER TOMORROW AS COLD AIR ADVECTION TAKES OVER. SKIES SHOULD CLEAR OUT TOMORROW AND EXPECTING ONE OF OUR COLDEST NIGHTS IN QUITE AWHILE. ALTHOUGH PORTLAND IS CURRENTLY IN THE TOP 5 FOR WARMEST DECEMBER...IT SHOULD SLIP BACK A BIT AS NORMAL TO SLIGHTLY BELOW NORMAL ARE EXPECTED. && .LONG TERM /TUESDAY THROUGH SUNDAY/... QUIET BUT COLD WEEK ON TAP AS ARCTIC AIR GRADUALLY SETTLES BACK INTO THE NORTHEAST. HIGH PRESSURE BUILDING IN FROM THE WEST ON TUESDAY WILL RESULT IN MOSTLY SUNNY SKIES WITH TEMPERATURES BELOW NORMAL. HIGHS WILL ONLY RANGE THROUGH THE TEENS IN THE NORTH AND WON`T GET OUT OF THE 20S IN THE SOUTH. CLEAR AND COLD WEATHER WILL CONTINUE TUESDAY NIGHT AND WEDNESDAY AS HIGH PRESSURE CRESTS OVER THE REGION. LOWS TUESDAY NIGHT WILL FALL TO 5 BELOW TO 5 ABOVE NORTH AND IN THE SINGLE NUMBERS TO LOWER TEENS SOUTH. HIGHS ON WEDNESDAY WILL ONCE AGAIN RANGE THROUGH THE TEENS NORTH AND 20S SOUTH. WEAK OVER-RUNNING PATTERN SETTING UP TO THE WEST OF THE FORECAST AREA WEDNESDAY NIGHT WILL BRING VARIABLE CLOUDS INTO THE REGION. BEST LIFT REMAINS NORTH OF THE BORDER BUT WILL PROBABLY INCLUDE SOME LOW CHANCE POPS IN THE NORTH. DESPITE THE CLOUDS WILL AGAIN SEE LOW WELL BELOW NORMAL WITH SINGLE NUMBERS NORTH AND TEENS SOUTH. COLD FRONT WILL APPROACH FROM THE NORTHWEST ON THURSDAY BRINGING INCREASING CLOUDS IN NORTHERN ZONES AND A CHANCE OF LATE DAY SNOW SHOWERS. REMAINDER OF THE FORECAST AREA WILL SEE PARTLY SUNNY SKIES. HIGHS WILL GENERALLY RANGE THROUGH THE 20S. COLD FRONT PUSHES THROUGH THE REGION THURSDAY NIGHT BRINGING A ROUND OF SNOW SHOWERS TO THE REGION ALONG WITH ANOTHER SHOT ARCTIC AIR. FRONT WILL PUSH OFFSHORE ON FRIDAY FOLLOWED BY HIGH PRESSURE. MORNING CLOUDS AND LINGERING FLURRIES WILL GIVE WAY TO MOSTLY SUNNY SKIES. BIG MODEL DIFFS FOR THE WEEKEND AS GFS TAKES LOW PRESSURE INTO SOUTHERN CANADA WELL TO THE WEST OF THE FORECAST AREA WHILE NEW ECMWF KEEPS THIS SYSTEM WELL SOUTH OF THE FORECAST AREA ALONG WITH ANY ASSOCIATED PRECIP. WITH ALL THE UNCERTAINTY WILL LIKELY KEEP THE FORECAST SIMPLE WITH A CHANCE OF RAIN OR SNOW FOR SATURDAY/SATURDAY NIGHT TIME FRAME. && .AVIATION /03Z MONDAY THROUGH FRIDAY/... SHORT TERM...EXPECTING VFR CONDITIONS ACROSS THE ENTIRE REGION. MAY HAVE BRIEF MVFR CONDITIONS IN THE MOUNTAINS WITH UPSLOPE SNOW SHOWERS POSSIBLE LATER TONIGHT. LONG TERM...VFR TUESDAY THROUGH FRIDAY. && .MARINE... SHORT TERM...WINDS AND SEAS SHOULD DECREASE AND EXPECTING TO JUST LET SCA EXPIRE. HIGH PRESSURE BUILDS IN TOMORROW AND NO OTHER FLAGS EXPECTED THROUGH TUESDAY MORNING. LONG TERM...SCA`S MAY BE NEEDED THURSDAY. && .GYX WATCHES/WARNINGS/ADVISORIES...
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ME...NONE. NH...NONE. MARINE...NONE.
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&& $$ SYNOPSIS... NEAR TERM...CEMPA SHORT TERM... LONG TERM... AVIATION... MARINE...

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