Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 271859
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
259 PM EDT THU AUG 27 2015

.SYNOPSIS...
OVERALL...A QUIET WEATHER PATTERN WILL BE IN PLACE THROUGH MUCH OF
NEXT WEEK WITH GRADUALLY WARMING TEMPERATURES AND RISING HUMIDITY
LEVELS. HIGH PRESSURE WILL BUILD ACROSS THE AREA THROUGH FRIDAY.
A TROUGH OF LOW PRESSURE MAY MOVE ACROSS THE REGION LATE IN THE
WEEKEND OR EARLY NEXT WEEK WITH THE THREAT OF A FEW SHOWERS.
OTHERWISE...MAINLY QUIET WEATHER IS EXPECTED THROUGH NEXT WEEK
WITH A HIGH PRESSURE RIDGE BUILDING IN FROM THE WEST AND WARM
TEMPERATURES.

&&

.NEAR TERM /TONIGHT/...
UPPER TROUGH MOVING ACROSS THE AREA HAS TRIGGERED SOME SCATTERED
SHOWERS THAT HAVE MAINLY STAYED IN NORTHERN/MOUNTAIN AREAS ALONG
WITH A VAST EXPANSE OF CUMULUS CLOUDS. THESE SHOWERS SHOULD
DISSIPATE WITH THE LOSS OF DAYTIME HEATING.

DRIER AIR IN PLACE... DEWPOINTS IN THE 50S... AND CLEARING SKIES
THIS EVENING SHOULD ALLOW FOR GOOD COOLING CONDITIONS TONIGHT.
EXPECT FOG TO FORM IN FAVORED VALLEYS OF WESTERN AND NORTHERN NEW
HAMPSHIRE WHERE SURFACE HIGH WILL BE MORE DOMINANT AND COOLING
WILL BE THE MOST EXTREME. TEMPERATURES WILL BE IN THE 50S AREAWIDE
WITH 40S IN THE MOUNTAIN VALLEYS.

&&

.SHORT TERM /FRIDAY AND FRIDAY NIGHT/...
WITH THE UPPER TROUGH HAVING MOVED TO THE EAST AND SURFACE HIGH
PRESSURE FIRMLY IN CONTROL... EXPECT A CALM DRY DAY ON FRIDAY WITH
TEMPERATURES RISING INTO THE 70S. A SEA BREEZE WILL LIKELY FORM
ALONG THE COAST IN THE ABSENCE OF A SIGNIFICANT SYNOPTIC WIND
FLOW. SOME CUMULUS IS LIKELY IN THE AFTERNOON BUT NOT AS EXPANSIVE
AS TODAY AND DO NOT EXPECT ANY SHOWERS.

HIGH PRESSURE OVER THE AREA WILL PROVIDE A COOL NIGHT WITH
TEMPERATURES IN THE 40S AND 50S. VALLEY FOG WILL BE MORE
WIDESPREAD ACROSS THE AREA WITH THE LONGER LATE AUGUST NIGHT AND
LIGHT WINDS.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
SATURDAY WILL BE DOMINATED BY DEEP LAYER RIDGING WITH A HINT OF
SURFACE TROFFING IN PLACE. MOISTURE WILL BE LIMITED SO THEREFORE
WE EXPECT A NICE DAY WITH HIGHS A GOOD 5 DEGREES WARMER THAN
NORMAL.

SUNDAY SHOULD BE A FINE DAY ALSO WITH INCREASED HEAT AND HUMIDITY
AND PERHAPS A BIT MORE CLOUDINESS AS A WEAK TROUGH APPROACHES FROM
THE WEST. CANNOT RULE OUT A COUPLE OF SHOWERS ACROSS THE FAR
INTERIOR.

A WEAK UPPER LEVEL TROUGH WILL SWING ACROSS THE REGION SUNDAY
NIGHT AND MONDAY WITH INCREASED CLOUD COVER AND THE THREAT FOR A
FEW SHOWERS AND PERHAPS AND ISOLATED THUNDERSTORMS.

THEREAFTER...DEEP LAYER RIDGING APPEARS TO GRADUALLY MOVE EASTWARD
TOWARD THE NORTHEASTERN US...ALLOWING FOR A WARMER THAN NORMAL AND
INCREASINGLY HUMID WEATHER PATTERN FOR NEW ENGLAND FOR THE REST OF
THE WEEK. IT DOES NOT APPEAR AS THOUGH COOL AND DRY FALL WEATHER
WILL BE COMING ANY TIME SOON.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
SHORT TERM...VFR CONDITIONS EXPECTED THE NEXT FEW DAYS WITH LIGHT
WINDS. VALLEY FOG LIKELY AT LEBANON AND WHITEFIELD EARLY FRIDAY
MORNING. A SEA BREEZE WILL OCCUR ALONG THE COAST FRIDAY AFTERNOON.
MORE WIDESPREAD VALLEY FOG EXPECTED SATURDAY MORNING WHICH COULD
IMPACT PLACES LIKE CONCORD AS WELL.

LONG TERM...MAINLY VFR CONDITIONS WITH NIGHTTIME AND EARLY MORNING
FOG AFFECTING VALLEY LOCATIONS THIS WEEKEND THROUGH EARLY NEXT
WEEK.

&&

.MARINE...
SHORT TERM...LIGHT WINDS AND SEAS EXPECTED UNDER HIGH PRESSURE.

LONG TERM...WINDS AND SEAS EXPECTED TO BE BELOW SCA CRITERIA
THIS WEEKEND THROUGH MUCH OF NEXT WEEK.

&&

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

&&

$$

NEAR TERM...KIMBLE
SHORT TERM...EKSTER
LONG TERM...EKSTER


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