Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 310629 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 229 AM EDT MON AUG 31 2015 .SYNOPSIS... WHILE THE REGION WILL SEE A COUPLE FRONTAL PASSAGES...HIGH PRESSURE WILL GENERALLY REMAIN IN CONTROL OF THE WEATHER ACROSS THE REGION THROUGH AT LEAST THE FIRST HALF OF THIS WEEK...WITH AN EXTENDED PERIOD OF QUIET WEATHER EXPECTED. TEMPERATURES WILL BE ABOVE SEASONAL NORMS THROUGH THE PERIOD...WITH GRADUALLY INCREASING HUMIDITY. A COLD FRONT COULD COOL US DOWN BY LATE WEEK...BUT SUBSTANTIAL RAINFALL IS NOT EXPECTED. && .NEAR TERM /THROUGH TODAY/...
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PATCHY FOG EARLY THIS MORNING OVER THE SHELTERED VALLEYS WILL MIX OUT BY THE MID MORNING HOURS...LEAVING THE REGION WITH MOSTLY SUNNY CONDITIONS. A FEW MORE CLOUDS AND POSSIBLY A BRIEF SHOWER MAY OCCUR IN THE FAR NORTHERN MOUNTAINS. MESOSCALE MODELS LIMIT ANY SIGNIFICANT PRECIPITATION OVER THE NORTH. USED CANADIAN MODEL FOR THE PREFFERED CLOUD FORECAST OF CHOICE FOR THE MOUNTAINS. DESPITE THE PASSAGE OF THIS MOISTURE STARVED COLD FRONT TODAY... DEW POINTS WILL REMAIN IN THE 60S ACROSS WESTERN MAINE AND NEW HAMPSHIRE. THIS WILL BE A MUGGY DAY WITH READINGS IN THE 80S OUTSIDE THE MOUNTAINS...HOWEVER THERE WILL BE A STEADY WESTERLY BREEZE. THIS OFFSHORE FLOW WILL ALLOW FOR MUCH ABOVE NORMAL TEMPERATURES ALL THE WAY TO THE COASTLINE THIS AFTERNOON.
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&& .SHORT TERM /TONIGHT THROUGH 6 PM TUESDAY/...
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MORE PATCHY INLAND VALLEY FOG IS EXPECTED TONIGHT AS HIGH PRESSURE BUILDS OVER THE AREA AND WINDS BECOME LIGHT. COLD AIR ADVECTION ALOFT TONIGHT WILL LEAD TO A COOLER DAY ON TUESDAY...BUT STILL ABOVE NORMAL FOR THIS TIME OF THE YEAR. AFTERNOON SEA BREEZES WILL LIMIT THE COASTLINE READINGS TO THE 70S. THERE WILL BE A RETURN FLOW OF WARM AIR ADVECTION ALOFT LATE IN THE DAY. THIS MAY ALLOW FOR MILKY SUNSHINE AS SOME CLOUDINESS BUILDS OVER THE REGION FROM THE WEST.
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&& .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
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HIGH PRESSURE WILL SHIFT OFFSHORE TUESDAY NIGHT AND WEDNESDAY AS A WEAK FRONTAL BOUNDARY SAGS SOUTH FROM CANADA. EXPECT VARIABLE HIGH AND MID LEVEL CLOUDINESS AFTER MIDNIGHT IN NORTHERN ZONES. THE REMAINDER OF THE FORECAST AREA WILL SEE MOSTLY CLEAR SKIES. LOWS WILL RANGE FROM THE MID 50S TO MID 60S. WEDNESDAY WILL BE HOT AND SUNNY ACROSS MOST OF THE FORECAST AREA WITH A CHANCE OF SHOWERS AND THUNDERSTORMS IN NORTHERN ZONES AS WEAK FRONTAL BOUNDARY CONTINUES TO DROP SOUTH INTO NORTHERN ZONES. HIGHS WILL REACH THE MID 80S TO LOWER 90S ACROSS MUCH OF THE FORECAST AREA. WEAK FRONTAL BOUNDARY WILL PUSH SOUTH OF THE REGION WEDNESDAY NIGHT AND THURSDAY AS HIGH PRESSURE BUILDS IN FROM THE NORTH. THIS WILL BRING SOME RELIEF FROM THE HEAT AND HUMIDITY...ESPECIALLY IN NORTHERN ZONES. EXPECT MOSTLY SUNNY SKIES WITH HIGHS RANGING THROUGH THE 80S. THERE WILL BE CHANCE FOR A SHOWER OR THUNDERSTORMS BUT FORCING WILL BE RATHER LIMITED. HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE REGION THURSDAY NIGHT AND FRIDAY. EXPECT EVEN COOLER TEMPS ON FRIDAY UNDER MOSTLY SUNNY SKIES WITH HIGHS FROM THE UPPER 70S TO MID 80S. HIGH PRESSURE WILL CONTINUE TO DROP SOUTH AND OFFSHORE FRIDAY NIGHT AND SATURDAY WITH RETURN FLOW GRADUALLY BRINGING WARMER AND MORE HUMID AIR BACK INTO THE REGION. HIGHS SATURDAY WILL BE A FEW DEGREES WARMER THAN FRIDAY WITH MOST AREAS SEEING LOWER TO MID 80S. HIGH PRESSURE WILL REMAIN ANCHORED OFF THE NEW ENGLAND COAST ON SUNDAY PRODUCING ANOTHER MOSTLY SUNNY DAY WITH HIGHS IN THE 80S.
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&& .AVIATION /06Z MONDAY THROUGH FRIDAY/...
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SHORT TERM...MAINLY VFR...WITH THE EXCEPTION OF PATCHY LATE NIGHT FOG ACROSS THE INTERIOR SHELTERED VALLEYS...LOCALLY REDUCING CONDITIONS BRIEFLY TO IFR OR LIFR. LONG TERM...VFR TUESDAY NIGHT THROUGH FRIDAY.
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&& .MARINE...
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SHORT TERM...WINDS AND SEAS WILL REMAIN BELOW SMALL CRAFT ADVISORY CRITERIA. DO NOT EXPECT MARITIME FOG IN THE SHORT TERM. LONG TERM...NO PROBLEMS NOTED.
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&& .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$

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