Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 282336 AAA AFDGYX AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE GRAY ME 736 PM EDT THU AUG 28 2014 .SYNOPSIS... HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY AND SHIFT OFFSHORE ON SATURDAY...BRINGING COOLER AND LESS HUMID CONDITIONS. A WARM FRONT CROSSES THE AREA SATURDAY NIGHT INTO SUNDAY. A COLD FRONT LOOKS TO MOVE INTO THE AREA ON SUNDAY AND MAY STALL NEARBY INTO EARLY NEXT WEEK. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... .UPDATE... ADJUSTED POPS FOR A FEW SPRINKLES OVER THE MOUNTAINS AND FOOTHILLS. WRF HAS A GOOD HANDLE ON THE SITUATION AND DIMINISHES THE PRECIPITATION OVER THE NEXT 1-2 HRS. CLOUDS ARE FARTHER SOUTH THAN FORECAST AND HAVE ADJUSTED THIS AS WELL. TEMPERATURES AND DEW POINTS ARE IN GOOD SHAPE. NW WINDS STILL GUSTING INTO THE 15-25 MPH RANGE BUT SHOULD DECREASE IN THE NEXT HOUR OR SO. && PREVIOUS DISCUSSION...A LARGE CANADIAN RIDGE OF HIGH PRES WILL BUILD INTO THE REGION TONIGHT WITH MUCH COOLER TEMPS AND VERY DRY CONDITIONS. LOW TEMPS WILL RANGE FROM THE MID 40S TO MID 50S. SOME PATCHY LATE NIGHT RIVER VLY FOG ONCE AGAIN EXPECTED. A HIGH SURF ADVISORY WILL REMAIN IN EFFECT FOR THE ENTIRE IMMEDIATE COASTLINE THROUGH FRIDAY MORNING. SOME RIP CURRENTS ARE LIKELY DUE TO THE LONG PERIOD GROUNDSWELLS. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/... THE LARGE RIDGE OF HIGH PRES BECOMES CENTERED OVER THE REGION FRIDAY WITH LIGHT WINDS AND SUNNY SKIES. TEMPS WILL BE ON THE COOL SIDE WITH HIGHS IN THE LOWER 70S. SKIES WILL REMAIN CLEAR FRIDAY NIGHT ALLOWING ANOTHER NIGHT OF COOL TEMPS WITH LOWS IN THE MID 40S TO MID 50S. MODELS IN GENERAL AGREEMENT ON TEMPS BUT STILL USED A BLEND. && .LONG TERM /SATURDAY THROUGH THURSDAY/... DEEP LAYER RIDGING WILL CREST OVER THE REGION SATURDAY WITH THE SFC HIGH SLIDING OFFSHORE BY LATE IN THE DAY. THIS WILL INDUCE A WAA PATTERN WITH WARMER AND MORE HUMID AIR MOVING INTO THE AREA. HOWEVER...IT SHOULD REMAIN DRY. ON SUNDAY...A WARM AND HUMID DAY IS EXPECTED IN THE WARM SECTOR. A COLD FRONT WILL APPROACH FROM THE WEST DURING THE DAY AND SHOULD RESULT IN SHOWERS AND THUNDERSTORMS BY SUNDAY AFTERNOON. A FEW COULD BE STRONG. THIS FRONT MAY BECOME QUASI-STATIONARY EARLY NEXT WEEK NEAR THE AREA AND MAY MEAN A CONTINUATION OF WARM AND HUMID CONDITIONS ALONG WITH OCCASIONAL BOUTS OF SHOWERS AND THUNDERSTORMS THROUGH TUESDAY OR WEDNESDAY BUT A COMPLETE WASHOUT IS NOT EXPECTED. && .AVIATION /23Z THURSDAY THROUGH TUESDAY/... .SHORT TERM...VFR THROUGH FRIDAY NIGHT...EXCEPT EXPECT RIVER VLY FOG IN RIVER VALLEYS LATE TONIGHT INTO EARLY FRI. .LONG TERM...MAINLY VFR CONDITIONS ARE FORESEEN FRIDAY THROUGH EARLY NEXT WEEK...BUT A FEW BOUTS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED...ESPECIALLY SUNDAY. THIS COULD RESULT IN LOWER CONDITIONS AT TIMES...WITH SOME COASTAL STRATUS AND FOG POSSIBLE. && .MARINE... .SHORT TERM... WINDS WILL REMAIN BLO SCA CRITERIA TONIGHT THROUGH FRI NIGHT...BUT DEEP WATER SWELLS WILL CONTINUE TO MOVE INTO THE REGION TONIGHT SO WILL CONTINUE THE SCA FOR SEAS OVER THE ERN OUTER WATERS UNTIL FRI MORNING. THE SWELLS WILL SLOWLY SUBSIDE BLO SCA CRITERIA FRI AND FRI NIGHT. A HIGH SURF ADVISORY WILL REMAIN IN EFFECT FOR THE ENTIRE IMMEDIATE COASTLINE THROUGH FRIDAY MORNING. SOME RIP CURRENTS ARE LIKELY DUE TO THE LONG PERIOD GROUNDSWELLS. .LONG TERM...SCA CONDITIONS POSSIBLE...MAINLY SAT NIGHT THROUGH SUN NIGHT. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...HIGH SURF ADVISORY UNTIL 11 AM EDT FRIDAY FOR MEZ023>028. NH...HIGH SURF ADVISORY UNTIL 11 AM EDT FRIDAY FOR NHZ014. MARINE...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 8 AM EDT FRIDAY FOR ANZ150-152. && $$ UPDATE...HANES

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