Area Forecast Discussion
Issued by NWS Portland, ME

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000
FXUS61 KGYX 290827
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
327 AM EST SAT NOV 29 2014

.SYNOPSIS...
HIGH PRESSURE WILL CREST OVERHEAD THIS MORNING. A WARM FRONT WILL
MOVE NORTH LATER TODAY THEN PASS THROUGH NORTHERN NEW ENGLAND
SUNDAY MORNING. A COLD FRONT WILL MOVE THROUGH THE REGION EARLY
MONDAY MORNING. HIGH PRESSURE WILL BUILD IN MONDAY AND CREST
OVERHEAD TUESDAY. A COLD FRONT WILL APPROACH WEDNESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
SFC RIDGE BUILDING IN UNDER WNW FLOW ALOFT...BUT HAVING A TOUGH
TIME WORKING IN UNDER WEAK NW FLOW IN MID LVLS...SO CLOUDS AND A
FEW FLURRIES STILL BEING PRODUCE BY UPSLOPE EFFECTS IN THE MTNS.
ONCE MID LVL RIDGE CRESTS OVER THE CWA EARLY TODAY...SHOULD SEE
SOME CLEARING THERE. TEMPS CONTINUE TO VARY QUITE A BIT...BOTH
SPATIALLY AND TEMPORALLY /KHIE WAS DOWN TO 5F AT MIDNIGHT...BUT
BACK UP TO 16F NOW/. COLDEST SPOTS ARE THE SHELTERED AREAS...WITH
KSFM AND KIZG COMING AT 5F AT 08Z.

THE DAY SHOULD START OFF MAINLY SUNNY OUTSIDE OF THE MTNS...WITH
GRADUALLY INCREASING CIRRUS...FROM SW TO NE...DURING THE
AFTERNOON. WITH SFC HIGH MOVING ACROSS THE CWA...WINDS WILL REMAIN
LIGHT. COMBINE THIS WITH THE SNOWPACK...AND THERE WILL BE VERY
LIMITED MIXING TODAY...SO HIGHS WILL ONLY RANGE FROM AROUND 32 ON
THE COAST...TO THE LOW AND MID 20S IN THE MTNS.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/...
NEXT SYSTEM WILL BE 500MB SHORT WAVE TRACKING WELL N OF THE CWA ON
SUN. IT WILL USHER IN A WARM FRONT LATE TONIGHT INTO EARLY
SUNDAY...AND COULD PRODUCE A FEW SNOW SHOWERS AFTER MIDNIGHT INTO
SUNDAY MORNING...ESPECIALLY IN THE NRN ZONES...PERHAPS CHANGING TO
SHRA. THE NRN ZONES COULD SEE SOME POCKETS OF FZRA SUN MORNING AS
THE WARM AIR MOVES IN ALOFT...WHILE THE SFC WARM FRONT HOLDS BACK
AT THE SFC. THE FRONT IS EXPECTED TO WORK IN ALONG THE
COAST...WITH TEMPS RISING INTO THE 40S ACROSS THE COASTAL...AND
WELL INTO THE 30S IN THE FOOTHILLS AND THE MTNS OF NH. EXPECT TO
SEE SOME SEE FOG DEVELOPING SUN AFTERNOON AS THE WARM AIR WORKS
IN OVER THE SNOW.


&&

.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...
THE MODELS ARE IN GENERAL AGREEMENT ON THE LONG WAVE PATTERN
THROUGH LATE NEXT WEEK. SEVERAL IMPULSES ROTATING AROUND AN UPPER
LOW VICINITY OF HUDSON BAY WILL BRING BRIEF SHOTS OF ARCTIC AIR TO
THE FORECAST AREA. WE BEGIN THE PERIOD WITH A BROAD WEST-
SOUTHWEST FLOW ALOFT AND MILDER TEMPERATURES AS WE WAIT FOR THE
NEXT IMPULSE TO DIVE SOUTHEAST INTO THE GREAT LAKES BEFORE RACING
EAST INTO NEW ENGLAND. THIS IMPULSE WILL DRIVE AN ASSOCIATED COLD
FRONT THROUGH THE REGION ON MONDAY...FOLLOWED BY A BRIEF RETURN
OF BELOW NORMAL TEMPERATURES FOR TUESDAY. A WARM UP FOLLOWS FOR
MIDWEEK BEFORE THE NEXT IMPULSE DRIVES YET ANOTHER COLD FRONT
THROUGH THE AREA WEDNESDAY NIGHT. IN THE DAILIES...A WARM FRONT
WILL CROSS THE AREA SUNDAY FOLLOWED BY A TRAILING COLD FRONT EARLY
MONDAY. HIGH PRESSURE WILL CROSS THE REGION TUESDAY. ANOTHER COLD
FRONT WILL CROSS NEW ENGLAND LATE WEDNESDAY FOLLOWED BY HIGH
PRESSURE FOR THURSDAY AND FRIDAY.




&&

.AVIATION /08Z SATURDAY THROUGH WEDNESDAY/...
SHORT TERM...MAINLY VFR THRU SUNDAY...ALTHOUGH COULD SEE SOME
TEMPORARY FLIGHT RESTRICTIONS I SHSN/SHRA LATE TONIGHT INTO SUN
AM.

LONG TERM...

MON AND WED...SCT MVFR IN RAIN AND SNOW SHOWERS.

&&

.MARINE...
SHORT TERM...SCA WINDS/SEAS LIKELY ON SUNDAY...WITH POSSIBLE LOW
END GALES SUN AFTERNOON.

LONG TERM...

MON - TUE...SMALL CRAFT WINDS AND SEAS ARE LIKELY.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...NONE.
NH...NONE.
MARINE...NONE.

&&

$$

CEMPA
SCHWIBS


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