Area Forecast Discussion
Issued by NWS Portland, ME

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000
FXUS61 KGYX 150719
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
319 AM EDT MON SEP 15 2014

.SYNOPSIS...
HIGH PRESSURE WILL SHIFT OFFSHORE TODAY. A COLD FRONT WILL
APPROACH FROM THE WEST TONIGHT AND WILL CROSS THE REGION ON
TUESDAY. A SECONDARY COLD FRONT WILL DROP SOUTH THROUGH THE REGION
ON WEDNESDAY. HIGH PRESSURE WILL BUILD IN FROM THE WEST WEDNESDAY
NIGHT THROUGH FRIDAY. HIGH [PRESSURE WILL SHIFT OFFSHORE FRIDAY
NIGHT AND WILL HOLD OFF THE COAST THROUGH SATURDAY.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
CLOUDS NEAR THE 925MB LEVEL ARE LOCATED ACROSS PORTIONS OF
COOS...FRANKLIN...AND SOMERSET COUNTIES AS WELL AS SULLIVAN COUNTY
THIS MORNING. THIS HAS DISRUPTED RADIATIONAL COOLING AND MAY
PREVENT FROST FROM FORMING. HAVE NOT CANCELLED THE FROST ADVISORY
FOR THESE AREAS HOWEVER AS THE CLOUDS ARE SLOWLY MOVING AND WE
HAVE SEVERAL MORE HOURS IN THE ADVISORY. THAT SAID...IT WILL BE
MUCH HARDER AT THIS POINT FOR FROST TO DEVELOP IN THESE AREAS.
OTHER LOCATIONS IN THE FROST ADVISORY SUCH AS THE REMAINING
MOUNTAINS AND FOOTHILLS ARE ALREADY APPROACHING THE MID 30S.

ADDITIONAL CLOUDINESS BLANKETS THE COAST AND THE MESOMODEL WHICH
DID PICK UP ON THESE CLOUDS...NAMELY THE RAP...SHOW THIS BROKEN
TO OVERCAST DECK MOVING OFFSHORE BY MID MORNING. WE SHOULD SEE A
QUICK WARM UP TODAY WITH HIGHS TOPPING OUT NEAR THE UPPER 50S
NORTH TO LOWER TO MID 60S SOUTH AS HIGH PRESSURE SLIDES NW TO SE
ACROSS THE AREA. INCREASING CLOUDS WILL APPEAR LATE TONIGHT AS A
COLD FRONT APPROACHES FROM THE WEST.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TUESDAY/...
TONIGHT`S LOWS WILL BE WARMER THAN THIS MORNING`S WITH INSULATING
CLOUD COVER. STILL WE WILL LIKELY DROP INTO THE UPPER 30S ALONG
THE CANADIAN BORDER. ELSEWHERE WE WILL BE IN THE 40S WITH READINGS
NEAR 50 ALONG THE COAST. SHOWERS WILL ARRIVE GENERALLY AFTER
MIDNIGHT FROM WEST TO EAST WITH LIGHT RAIN FALLING THROUGH EARLY
AFTERNOON. SW WINDS SHOULD HELP HIGHS REACH THE UPPER 50S TO MID
60S WITH PERHAPS A COUPLE HIGHER READINGS OVER THE SW...DEPENDING
ON HOW FAST THE DRY SLOT ARRIVES.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
SECONDARY COLD FRONT WILL APPROACH FROM THE NORTH TUESDAY NIGHT
BRINGING INCREASING CLOUDS TO NORTHERN ZONES AFTER MIDNIGHT.
LITTLE IN THE WAY OF FORCING WITH THIS BOUNDARY SO NOT GOING WITH
MUCH IN THE WAY OF POPS.

THE FRONT WILL SLOWLY SAG SOUTH INTO THE REGION ON WEDNESDAY. WEAK
SHORTWAVE PASSING TO THE NORTH MAY KICK OFF A FEW LATE DAY
SHOWERS IN NORTHERN ZONES. FRONT WILL FINALLY PUSH SOUTH OF THE
REGION WEDNESDAY NIGHT AS HIGH PRESSURE BUILDS IN FROM THE WEST.
MAY SEE A FEW LINGERING SHOWERS IN NORTHERN ZONES BUT EXPECT THE
MAJORITY OF THE FORECAST AREA TO SEE A DRY NIGHT.

MORNING CLOUDS WILL GRADUALLY GIVE WAY TO SUNNY SKIES ON THURSDAY
AS HIGH PRESSURE BUILDS IN FROM THE WEST. WILL SEE FALL LIKE
TEMPS AS COLD CANADIAN AIRMASS SETTLES INTO THE REGION. HIGHS WILL
RANGE FROM THE MID 50S TO THE MID 60S.

FAIR WEATHER CONTINUES THURSDAY NIGHT AND FRIDAY AS HIGH PRESSURE
CRESTS OVER THE REGION. WILL LIKELY SEE A HARD FREEZE IN NORTHERN
ZONES THURSDAY NIGHT AND AREAS OF FROST IN SOUTHERN INTERIOR AND
CENTRAL PORTIONS OF MAINE AND NEW HAMPSHIRE.

HIGH PRESSURE SHIFTS OFFSHORE FRIDAY NIGHT AND RETURN FLOW WILL
BRING MODERATING TEMPS BACK INTO THE REGION ON SATURDAY. BROAD AREA
OF OVER-RUNNING SETTING UP TO THE WEST WILL BRING INCREASING
CLOUDS ON SATURDAY AND THE CHANCE FOR A LATE DAY SHOWER IN FAR
NORTHERN ZONES.

COLD FRONT WILL APPROACH FROM THE NORTHWEST SATURDAY NIGHT AND
SUNDAY. SHORTWAVE SWINGING IN FROM THE WEST WILL SPIN UP SURFACE
LOW PRESSURE ACROSS WESTERN QUEBEC ON SUNDAY....DRIVING A COLD FRONT
TOWARD THE REGION. WILL SEE INCREASING CLOUDS ON SUNDAY WITH A
CHANCE OF SHOWERS PUSHING INTO FAR NORTHWEST ZONES BY LATE IN THE
DAY. COLD FRONT WILL SLOWLY PUSH INTO THE REGION FROM THE WEST
SUNDAY NIGHT BRINGING A ROUND OF SHOWERS TO THE AREA.

FRONT WILL PUSH OFFSHORE MONDAY MORNING. EXPECT MORNING CLOUDS TO
GIVE WAY TO MOSTLY SUNNY SKIES AS HIGH PRESSURE BUILDS IN FROM THE
WEST.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
SHORT TERM...LIFR OR LOWER THIS MORNING THROUGH 1330Z AT KHIE...
KCON... AND KLEB IN STRATUS AND FOG WILL IMPROVE TO VFR CONDITIONS
EVERYWHERE TODAY. LOWERING CEILINGS LIKELY TONIGHT INTO TUESDAY
WITH MVFR TO VFR CONDITIONS IN SHOWERS.

LONG TERM...VFR TUESDAY NIGHT THROUGH FRIDAY.

&&

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

LONG TERM...NO FLAGS.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...FROST ADVISORY UNTIL 8 AM EDT THIS MORNING FOR MEZ007>009-012.
NH...FROST ADVISORY UNTIL 8 AM EDT THIS MORNING FOR NHZ001>009.
MARINE...NONE.

&&

$$

HANES/SINSABAUGH


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