Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 192334 AAA
AFDGYX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE GRAY ME
734 PM EDT SAT APR 19 2014

.SYNOPSIS...
HIGH PRESSURE WILL BUILD SOUTHEAST AND CREST ACROSS THE AREA ON
SUNDAY BEFORE SLIDING OFFSHORE. A WARM FRONT WILL APPROACH THE
REGION SUNDAY NIGHT. LOW PRESSURE WILL APPROACH FROM THE WEST ON
TUESDAY AND PASS ACROSS THE AREA TUESDAY NIGHT. LOW PRESSURE WILL
DEVELOP IN THE GULF OF MAINE TUESDAY NIGHT AND MOVE AWAY TO THE
EAST ON WEDNESDAY. FAIR WEATHER IS THEN EXPECTED THROUGH THE REST
OF THE WEEK.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
.UPDATE...
MINOR CHANGES TO CURRENT FORECAST TO ADJUST HOURLY TEMPERATURES
AND DEW POINTS. SKY COVER IS GRADUALLY DIMINISHING AND LOWERED
FAVORED COOL SPOTS A FEW MORE DEGREES WITH IDEAL RADIATIONAL
COOLING CONDITIONS ALREADY UNDERWAY.

&&

.PREVIOUS DISCUSSION...
CLOUDS WILL MELT AWAY THIS EVENING WITH LOSS OF HEATING. THE
MOUNTAINS COULD SEE CLOUDS LINGER A BIT LONGER IN THE UPSLOPE
FLOW. SURFACE HIGH BUILDS SOUTHEAST OVERNIGHT WITH CLEARING SKIES
AND LIGHT WINDS PRODUCING LOWS MAINLY IN THE TEENS AND 20S.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...
SURFACE HIGH CRESTS ACROSS THE AREA ON SUNDAY BEFORE SLIDING
OFFSHORE IN THE AFTERNOON. A MOSTLY SUNNY HOLIDAY WITH HIGHS
MAINLY IN THE 50S. IT WILL TURN COOLER ALONG THE COAST BY
AFTERNOON AS THE LIGHT SYNOPTIC FLOW TURNS ONSHORE.

CLOUDS WILL BE ON THE INCREASE SATURDAY NIGHT AS A WARM FRONT
APPROACHES THE AREA.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
GENERALLY FAIR WEATHER EXPECTED MONDAY THROUGH THE FIRST PART OF
TUESDAY AS THE AREA REMAINS UNDER SHORT WAVE RIDGING. A FEW
SHOWERS WILL BE POSSIBLE MONDAY NIGHT INTO TUESDAY ACROSS THE FAR
NORTHERN MOUNTAINS IN ASSOCIATION WITH A WARM FRONT...BUT MOST OF
THE REGION SHOULD REMAIN DRY.

A DIGGING SHORT WAVE TROUGH WILL APPROACH FROM THE WEST ON TUESDAY
AND THIS WILL HELP PUSH A COLD FRONT FRONT TOWARD OUR AREA.
FORCING FOR ASCENT WILL INCREASE DURING THE AFTERNOON
TUESDAY...WHICH SHOULD ALLOW FOR SHOWERS MOVING INTO WESTERN ZONES
BY LATE IN THE DAY. LOW PRESSURE IS EXPECTED TO DEVELOP ON THIS
FRONT TUESDAY EVENING OVERHEAD...THEN MOVE NORTHEAST ON WEDNESDAY.
AT THIS TIME...IT LOOKS LIKE THIS SECONDARY DEVELOPMENT WILL OCCUR
TOO LATE AND TOO FAR NORTH TO ALLOW FOR A SUBSTANTIAL RAINFALL
EVENT. SO...WE JUST EXPECTED RELATIVELY LIGHT SHOWERS TUESDAY
NIGHT INTO EARLY WEDNESDAY IN THE EAST. THEREAFTER...COLD AIR
ADVECTION WILL BE THE RULE THURSDAY WITH HIGH PRESSURE MOVING IN
FOR FRIDAY RESULTING IN FAIR WEATHER BOTH DAYS.

&&

.AVIATION /00Z SUNDAY THROUGH THURSDAY/...
SHORT TERM /THROUGH SUNDAY NIGHT/...GUSTY NW WIND TO 25 KT WILL
DIMINISH THIS EVENING...OTHERWISE QUIET WITH VFR CONDITIONS.

LONG TERM...MVFR OR LOWER CONDITIONS POSSIBLE TUESDAY NIGHT INTO
EARLY WEDNESDAY IN SHOWERS.

&&

.MARINE...
SHORT TERM /THROUGH SUNDAY NIGHT/...A PERIOD OF SCA WINDS AND SEAS
THROUGH EARLY TONIGHT BEHIND THE COLD FRONT THEN LINGERING SCA
SEAS THROUGH EARLY SUNDAY. A QUIET DAY FOR SUNDAY AND SUNDAY NIGHT
AS THE SURFACE HIGH TRAVERSES THE WATERS.

LONG TERM...OCCASIONAL MARGINAL SCA CONDITIONS WILL BE POSSIBLE ON
THE OCEAN WATERS THROUGH THE EARLY WEEK PERIOD. MORE ROBUST SCA
CONDITIONS WILL BE POSSIBLE MIDWEEK IN THE WAKE OF LOW PRESSURE.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...NONE.
NH...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 6 AM EDT SUNDAY FOR ANZ150>154.

&&

$$


UPDATE...HANES





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