Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 182103 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 503 PM EDT MON AUG 18 2014 .SYNOPSIS... HIGH PRESSURE OVER THE REGION TONIGHT WILL PERSIST INTO WEDNESDAY. A WEAK FRONT APPROACHING FROM THE WEST WILL DISSIPATE AS IT REACHES NEW YORK AND VERMONT WEDNESDAY NIGHT AND THURSDAY. HIGH PRESSURE STRENGTHENS AGAIN LATE IN THE WEEK. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... 5PM... QUICK UPDATE TO REFLECT LATEST TRENDS. HIGH PRESSURE WILL BUILD OVERHEAD LATER TONIGHT. THE NORTHWEST BREEZE WILL QUICKLY DISSIPATE AS THE SUN SETS AND THE HIGH BUILDS IN. SKIES WILL BE MOSTLY CLEAR, AND WITH THE LIGHT WINDS, THIS WILL LEAD TO A COOL NIGHT. LOWS IN THE LOWER TO MID 40S FOR VALLEYS FURTHER INLAND, WITH UPPER 40S TO LOWER 50S CLOSER TO THE COAST. RADIATION FOG WILL BE AN ISSUE LATER TONIGHT, WITH THE BEST BET FOR FOG BEING THE CONNECTICUT RIVER VALLEY AND OTHER INTERIOR VALLEYS FROM THE WHITE MOUNTAINS NORTHEAST INTO THE WESTERN MAINE MOUNTAINS. THE FOG WILL BURN OFF QUICKLY FOR TUESDAY, WITH A DRY MOSTLY SUNNY DAY WITH LIGHT WIND. HIGHS IN THE MID TO UPPER 70S. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/... A WEAK RIDGE IS EXPECTED OVER THE REGION TUESDAY NIGHT. THIS SYSTEM BUILDS TO A STRONGER HIGH LATER IN THE DAY WEDNESDAY AND PERSIST THROUGH THE DAY THURSDAY. LOW PRESSURE SOUTH OF REGION WEDNESDAY WILL MOVE INTO ATLANTIC. SHOWERS OVER EASTERN GREAT LAKES WILL START TO MOVE EASTWARD LATE WEDNESDAY AND WEDNESDAY NIGHT.... WITH POPS FOR SHOWERS INCREASE SLIGHTLY THURSDAY. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... STRONG HIGH PRESSURE CENTERED OVER THE MARITIMES FRIDAY WILL REMAIN IN PLACE THROUGH SATURDAY. LOW PRESSURE OVER THE ATLANTIC SOUTH OF NEW ENGLAND SATURDAY WILL REMAIN STATIONARY AND INTENSIFY SUNDAY. AS HIGH PRESSURE OVER THE MARITIMES WEAKENS MONDAY IT IS POSSIBLE PRECIPITATION TO THE NORTH OF THIS SYSTEM WILL ROTATE AROUND THE NORTH SIDE OF THE LOW AND INTO THE REGION. ECMWF IS WEAKER WITH THIS SYSTEM AND KEEPS THE LOW FURTHER TO THE SOUTHEAST. WILL KEEP THE POPS FROM THIS SYSTEM IN CHANCE CATEGORY. && .AVIATION /21Z MONDAY THROUGH SATURDAY/... SHORT TERM... NORTHWEST BREEZES WILL QUICKLY DIE OFF AS THE SUN SETS. HAVE HIGH CONFIDENCE IN RADIATION FOG TONIGHT AT KHIE AND KLEB. LIFR EXPECTED AT KHIE AND KLEB. POSSIBLE REDUCTION AT KCON BUT MUCH LOWER CONFIDENCE THERE. TENTATIVELY EXPECT OTHER TAFS SITE TO REMAIN FOG FREE, BUT WILL NEED TO WATCH CLOSELY. FOG QUICKLY BURNS OFF TUESDAY MORNING, LEAVING WAY FOR A VFR DAY. LONG TERM...EXPECT VFR CONDITIONS WEDNESDAY THROUGH SATURDAY... ONLY EXCEPTION IS POSSIBLE MORNING RADIATION FOG THROUGH PERIOD THAT COULD LOWER TO MVFR/IFR. && .MARINE... SHORT TERM... WINDS GENERALLY 10 KNOTS OR LESS AND SEAS 2 FEET OR LESS THROUGH TUESDAY. LONG TERM...EXPECT SEAS TO REMAIN 1 TO 2 FEET WEDNESDAY NIGHT INTO THURSDAY. AS LOW PRESSURE DEVELOPS SOUTH OF NEW ENGLAND SATURDAY EXPECT NORTHEAST WIND WAVE AND LONGER PERIOD EAST TO SOUTHEASTERLY WAVES SYSTEM TO BUILD AS FETCH DEVELOPS TO THE NORTH THE LOW. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$ SYNOPSIS... NEAR TERM...CURTIS SHORT TERM... LONG TERM... AVIATION... MARINE...

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