Area Forecast Discussion
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS61 KGYX 311119
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
719 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 /UNTIL 6 PM THIS EVENING/...
AREAS OF 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.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...
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.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
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.

&&

.AVIATION /11Z MONDAY THROUGH FRIDAY/...
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.

&&

.MARINE...
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.

&&

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

&&

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.