Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 110651 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 251 AM EDT FRI JUL 11 2014 .SYNOPSIS...
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HIGH PRESSURE WILL BUILD INTO NEW ENGLAND TODAY AND TONIGHT THEN SLIDE OFF THE COAST ON SATURDAY. A WARM FRONT WILL CROSS THE AREA SUNDAY NIGHT WITH A HOT HUMID AIRMASS TO FOLLOW FOR MONDAY AND TUESDAY IN ADVANCE OF A SLOW-MOVING COLD FRONT. THE COLD FRONT IS EXPECTED TO EXIT THE COAST BY LATE WEDNESDAY.
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&& .NEAR TERM /THROUGH TODAY/...
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HIGH PRESSURE DOMINATES TODAY AS IT BUILDS INTO NEW ENGLAND. THIS WILL PROVIDE MOSTLY SUNNY SKIES...LGT WINDS...SEASONABLE TEMPS WITH HIGHS MOSTLY IN THE 70S...WITH SOME SRN INLAND AREAS REACHING 80 AND LOW HUMIDITY. THE LGT WINDS WILL ALLOW A SEA BREEZE TO DEVELOP ALONG THE COAST WHICH WILL COOL OFF TEMPS THIS AFTERNOON THUS RESULTING IN SLIGHTLY COOLER HIGH TEMPS FOR THE DAY. SOME CLOUDS, MAINLY HIGH CIRRUS CLOUDS, MOVING ACROSS COASTAL AND SOME ADJACENT INTERIOR AREAS EARLY THIS MORNING. THESE CLOUDS ARE ASSOCIATED WITH AN UPPER LVL TROF AND SFC LOW/FNT TO OUR S. THIS WX SYSTEM WILL BE PUSHING TO THE E OUT TO SEA TODAY BRINGING THIS BAND OF CLOUDS WITH IT. USED A BLEND OF MODELS AND MOS GUIDANCE FOR THE NEAR TERM FCST.
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&& .SHORT TERM /TONIGHT THROUGH 6 PM SATURDAY/...
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HIGH PRESSURE REMAINS OVER NEW ENGLAND TNGT GIVING US CLR TO MOSTLY CLR SKIES AND LGT WINDS. SOME VALLEY F MAY FORM LATE BUT WITH ANOTHER DAY TO DRY OUT AND WITH LOW DEW POINTS IN A DRY AIR MASS DON`T EXPECT F TO BE TOO WIDESPREAD OR TOO DENSE. THE HIGH SLIDES OFFSHORE ON SATURDAY BUT KEEPS US DRY WITH MOSTLY SUNNY SKIES. TEMPS MODIFY AS 850 MB TEMPS WARM UP WHICH SHOULD GIVE US A WARMER DAY WITH HIGHS IN THE UPPER 70S TO LOWER 80S...POSSIBLY HITTING THE MID 80S OVER SRN INTERIOR AREAS. A RETURN SOUTHERLY FLOW AROUND THE HIGH WILL COMBINE WITH A SEA BREEZE TO KEEP THE COAST COOLER THAN INTERIOR AREAS WITH HIGHS IN THE 70S. THE COOL OCEAN AIR WILL EVENTUALLY SPREAD NWD INTO INTERIOR SECTIONS OF SRN AND CENTRAL MAINE...BUT NOT SOON ENOUGH TO IMPACT MAX TEMPS FOR THE DAY. USED A BLEND OF MODELS AND MOS GUIDANCE FOR THE SHORT TERM FCST.
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&& .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
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THE MODELS ARE IN GENERAL AGREEMENT ON THE LONGWAVE PATTERN WELL INTO NEXT WEEK. WE BEGIN THE PERIOD WITH A WEST-SOUTHWEST UPPER FLOW THAT INTRODUCES A BRIEF WARM UP ALONG WITH RISING HUMIDITY LEVELS...FOLLOWED QUICKLY BY AN EASTERN TROUGH AND COOLER UNSETTLED WEATHER. IN THE DAILIES...HIGH PRESSURE WILL RETREAT INTO THE MARITIMES ON SUNDAY. A WARM FRONT WILL CROSS THE AREA SUNDAY NIGHT WITH A HOT HUMID AIRMASS TO FOLLOW FOR MONDAY AND TUESDAY IN ADVANCE OF A SLOW-MOVING COLD FRONT. THE COLD FRONT IS EXPECTED TO EXIT THE COAST BY LATE WEDNESDAY.
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&& .AVIATION /06Z FRIDAY THROUGH TUESDAY/...
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SHORT TERM /THROUGH SATURDAY/...VFR AS HIGH PRESSURE DOMINATES. SOME VALLEY F POSSIBLE THRU EARLY THIS MORNING BUT WITH LIMITED IMPACT ON TAF SITES...MAINLY LEB AND CON. LGT WINDS ALLOW A SEA BREEZE TO DEVELOP THIS AFTERNOON FOR COASTAL TAF SITES. ONSHORE FLOW AROUND SFC HIGH TO THE E WILL BE ENHANCED BY THE SEA BREEZE ON SATURDAY...IMPACTING COASTAL TAF SITES THEN WORKING INLAND TOWARDS AUG. LONG TERM... SUN...IFR IN COASTAL FOG POSSIBLE SUN AM. SCT MVFR IN PM SHOWERS AND TSTMS. MON - TUE...IFR IN COASTAL AM FOG...OTHERWISE AREAS OF MVFR IN SHOWERS AND TSTMS.
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&& .MARINE...
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SHORT TERM /TODAY THROUGH SATURDAY/...HIGH PRESSURE BUILDS INTO NEW ENGLAND TODAY AND TNGT THEN MOVES OFFSHORE SATURDAY KEEPING WINDS AND SEAS WELL BELOW SCA LEVELS. A SEA BREEZE DEVELOPS FOR THIS AFTERNOON. ONSHORE FLOW AROUND DEPARTING HIGH WILL BE ENHANCED BY A SEA BREEZE ON SATURDAY. LONG TERM... SUN - TUE...SMALL CRAFT WINDS AND SEAS ARE POSSIBLE.
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&& .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$

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