Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 121914
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
314 PM EDT FRI SEP 12 2014

.SYNOPSIS...
HIGH PRESSURE SHIFTS EAST ACROSS NEW ENGLAND TONIGHT AND EXITS
OFFSHORE SATURDAY. ANOTHER COLD FRONT WILL BRING A CHANCE OF
SHOWERS LATE SATURDAY AND SATURDAY EVENING. HIGH PRESSURE WILL
BUILD BACK IN SUNDAY AND MONDAY...FOLLOWED BY ANOTHER CHANCE FOR
SHOWERS AROUND TUESDAY AS A COLD FRONT WORKS ACROSS THE REGION.
COOLER HIGH PRESSURE BUILDS IN FOR THE LATTER PART OF NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
CLEAR AND COOL EVENING IN STORE AS RADIATIONAL COOLING WILL ALLOW
TEMPERATURES TO FALL INTO THE UPPER 30S OVER THE MOUNTAINS AND 40S
ELSEWHERE. LOW CLOUDS OVER THE FAR NORTHERN MOUNTAINS OF NEW
HAMPSHIRE SHOULD DIMINISH TOWARD SUNSET. THE CLEAR SKIES SHOULD
PROVIDE A PERFECT EVENING FOR WATCHING ANY AURORAL ACTIVITY.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
LOOK FOR INCREASING CLOUDS FROM WEST TO EAST DURING THE DAY ON
SATURDAY AS A WEAK FRONT APPROACHES. THE SYSTEM DOES NOT LOOK VERY
ORGANIZED AND SHOULD ONLY PRODUCE SOME SHOWERS LATE SATURDAY AND
SATURDAY NIGHT AS IT MOVES THOUGH.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
BROAD SLIGHTLY CYCLONIC FLOW AT 500 MB WILL PERSIST SUNDAY
THROUGH MOST OF NEXT WEEK AS LARGE SCALE CLOSED LOWS CIRCLE AROUND
EACH OTHER OVER NRN HUDSON BAY. THIS WILL KEEP THINGS GENERALLY
ON THE COOL SIDE OF NORMAL.

WEATHER SYSTEMS WILL BE WEAK AND FAST MOVING...WITH THE MOST
NOTABLE OCCURRING TUE-WED AS SERIES OF TROUGHS ROTATES AROUND THE
CLOSE LOW WELL TO THE N. THIS WILL DRAG A COLD FRONT THROUGH THE
REGION TUE...AND BRING A THREAT OF SHRA...ALTHOUGH QPF IS LIGHT.
TEMPS SUN THROUGH TUE SHOULD BE SLIGHTLY BLO NORMAL TO NORMAL. A
SECONDARY TROUGH WILL MOVE ACROSS NRN NEW ENGLAND ON WED WHICH
LOOKS TO BE MOISTURE STARVED. THE END OF THE WEEK WILL FEATURE
ANOTHER ROUND OF COOLER TEMPS. MODELS CURRENTLY SUGGESTING A WARM
UP NEXT WEEKEND.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
SHORT TERM...VFR CONDITIONS EXPECTED TONIGHT WITH PERHAPS SOME
PATCHY FOG IN FAVORED AREAS. CEILINGS WILL DROP TO MVFR LEVEL
TOMORROW AFTERNOON AS A WEAK FRONT APPROACHES. MVFR/IFR CONDITIONS
EXPECTED FOR A TIME SATURDAY AFTERNOON AND EVENING AS SHOWERS MOVE
THROUGH.

LONG TERM...
MAINLY VFR WITH POTENTIAL FOR LATE NIGHT VALLEY FOG EACH NIGHT. A
CHC OF SHWRS TUE MAY LOWER CIGS TO MVFR AT TIMES.

&&

.MARINE...
SHORT TERM...NO FLAGS EXPECTED.

LONG TERM...
CONDITIONS TO REMAIN BELOW SCA CONDITIONS THRU TUE. COULD SEAS
PUSH THE 5 FT MARK LATE TUE INTO WED WITH PERSISTENT S FETCH.

&&

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

&&

$$

NEAR TERM...POHL
SHORT TERM...POHL
LONG TERM...CEMPA
AVIATION...CEMPA/POHL
MARINE...CEMPA/POHL



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