Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 271859 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 259 PM EDT THU AUG 27 2015 .SYNOPSIS...
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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.
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&& .NEAR TERM /TONIGHT/...
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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.
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&& .SHORT TERM /FRIDAY AND FRIDAY NIGHT/...
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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.
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&& .LONG TERM /SATURDAY THROUGH THURSDAY/...
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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.
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&& .AVIATION /18Z THURSDAY THROUGH TUESDAY/...
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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.
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&& .MARINE...
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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.
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&& .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$ NEAR TERM...KIMBLE SHORT TERM...EKSTER LONG TERM...EKSTER

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