FXUS61 KGYX 241953
AFDGYX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
253 PM EST THU DEC 24 2009
.SYNOPSIS...
HIGH PRESSURE WILL CREST OVER THE REGION FRIDAY. A FRONT WILL
APPROACH THE REGION SATURDAY AND MOVE THROUGH THE FORECAST AREA
SUNDAY AFTERNOON. WEAK LOW PRESSURE DEVELOP NEAR LONG ISLAND NEW
YORK MONDAY AFTERNOON AND MOVE SE OF THE GULF OF MAINE MONDAY
NIGHT. AN ARCTIC COLD FRONT WILL MOVE THROUGH TUESDAY MORNING.
ARCTIC HIGH PRESSURE WILL BUILD OVER THE REGION TUESDAY AND
WEDNESDAY. A FRONTAL SYSTEM WILL APPROACH THE AREA THURSDAY.
&&
.NEAR TERM /THROUGH TONIGHT/...
HIGH PRESSURE WILL DOMINATE THE WEATHER TONIGHT WITH RELATIVELY
QUIET CONDITIONS. MOSTLY CLEAR SKIES IN PLACE THIS AFTERNOON.
HOWEVER...LOW LEVEL MOISTURE AND RADIATIONAL COOLING MAY PRODUCE
SOME LOW CLOUDS TONIGHT. PRESSURE GRADIENT WILL CONTINUE TO
WEAKEN...CAUSING WINDS TO DECOUPLE AND GO LIGHT AND VARIABLE AT
MOST LOCATIONS.
&&
.SHORT TERM /FRIDAY/...
HIGH PRESSURE WILL REMAIN IN PLACE ACROSS NORTHERN NEW ENGLAND.
PARTLY CLOUDY SKIES AND ABUNDANT SUNSHINE WILL ALLOW TEMPERATURES
TO CLIMB ABOVE FREEZING OVER THE MAJORITY OF THE AREA. LOW
PRESSURE SYSTEM DEVELOPING OVER THE CAROLINAS WILL BEGIN TO BRING
SOME CLOUD COVER TO THE SOUTHERN PORTIONS OF THE CWA BY LATE
AFTERNOON.
&&
.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
MODELS CONTINUE TO DELAY THE ARRIVAL OF THE OCCLUDED FRONT WITH
MOST OF THE WEATHER TO OCCUR SUNDAY. CLOUDS WILL BE INCREASING
FRIDAY NIGHT WITH THE MOST NE PORTION OF THE FA REMAINING MOSTLY
CLEAR. SATURDAY CLOUDS WILL THICKEN AND LOWER WITH PRECIPITATION
BEGINNING IN SW NH BY MIDDAY. PRECIP WILL MOVE NE AND BE COVERING
THE ENTIRE FA BY EARLY SUN MORNING. PRECIP WILL BE A MIXED BAG IN
THE INTERIOR AND MOSTLY RAIN AT THE COAST. ON SUNDAY PRECIP SHOULD
CHANGE TO RAIN AS FAR NORTH AS RUMFORD AND CONWAY. PRECIP WILL
REMAIN MIXED IN THE MTNS. MINOR ICE ACCUMULATION IS EXPECTED IN
THE INTERIOR.
PRECIP ENDS FROM WEST TO EAST SUNDAY WITH LINGERING SNOW SHOWERS
OVER THE AREA. A SURFACE LOW SPINS UP SOUTH OF LONG ISLAND MONDAY
AFTN IN RESPONSE TO A SHORT WAVE MOVING THROUGH. ONCE THIS LOW
MOVES EAST AN ARCTIC BOUNDARY WILL MOVE THROUGH LATE MONDAY EARLY TUESDAY
WITH SNOW SQUALLS PSBL. ARCTIC AIR WED AND THURS.
&&
.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
SHORT TERM...VFR THIS AFTERNOON AND EVENING. LOW LEVEL MOISTURE
MAY PRODUCE SOME IFR/MVFR CIGS DURING THE OVERNIGHT. VFR
CONDITIONS RETURN FOR FRIDAY.
LONG TERM...EXPECT VFR THROUGH SAT MIDDAY THEN CONDITIONS
DETERIORATE TO IFR LATER SAT AND CONTINUE THROUGH NOON SUNDAY. VFR
SUNDAY PM THROUGH TUESDAY. HOWEVER MVFR CEILINGS PSBL MON AFTN AS
SFC LOW MOVES SOUTH OF AREA AND ARCTIC FRONT APPROACHES.
&&
.MARINE...
SHORT TERM...WINDS WILL BEGIN TO DROP OFF THIS AFTERNOON.
HOWEVER...SEAS ARE RUNNING A BIT ABOVE THE WNA WAVE GUIDANCE. 12Z
NAM INITIALIZED SWAN APPEARS TO HAVE A PRETTY GOOD HANDLE ON THE
SEAS. SEAS WILL BE SLOW TO COME DOWN. HAVE EXTENDED THE SCA INTO
TOMORROW TO HANDLE THIS.
LONG TERM...NO FLAGS FRI NIGHT THROUGH SAT NOON. SCA WILL LIKELY BE
NEEDED AS OCCLUSION APPROACHES AND ON BACKSIDE OF FRONT INTO EARLY
MON. SCA/GALE WILL LIKELY BE NEEDED AS SFC LOW INTENSIFIES EAST OF
AREA TUES MORN AND WITH PASSAGE OF ARCTIC FRONT.
&&
.GYX WATCHES/WARNINGS/ADVISORIES...
ME...NONE.
NH...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 7 PM EST THIS EVENING FOR ANZ151-
153.
SMALL CRAFT ADVISORY UNTIL 1 PM EST FRIDAY FOR ANZ150-152-154.
&&
$$
