Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 240711 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 311 AM EDT TUE MAR 24 2015 .SYNOPSIS... HIGH PRESSURE WILL BUILD IN FROM THE WEST TODAY AND WILL SHIFT OFFSHORE ON WEDNESDAY AS A WARM FRONT APPROACHES FROM THE SOUTHWEST. THE WARM FRONT WILL LIFT NORTHEAST THROUGH THE REGION WEDNESDAY NIGHT. LOW PRESSURE WILL PUSH IN FROM THE WEST THURSDAY AND WILL PULL A COLD FRONT THROUGH THE AREA AS IT MOVES INTO THE MARITIMES THURSDAY NIGHT. HIGH PRESSURE WILL GRADUALLY BUILD IN FROM THE WEST FRIDAY THROUGH SUNDAY. LOW PRESSURE WILL APPROACH FROM THE WEST ON MONDAY. && .NEAR TERM /THROUGH TODAY/... HIGH PRESSURE BUILDING IN FROM THE WEST WILL BRING MODERATING TEMPS AND LIGHTER WINDS TO THE REGION TODAY. HIGH TEMPS WILL RANGE THROUGH THE 30S FROM NORTH TO SOUTH. && .SHORT TERM /TONIGHT THROUGH 6 PM WEDNESDAY/... HIGH PRESSURE WILL CREST OVER THE AREA TONIGHT. CLEAR SKIES AND LIGHT WINDS WILL ALLOW FOR GOOD RADIATIONAL COOLING. LOW TEMPS WILL BOTTOM OUT ZERO TO 10 ABOVE NORTH AND WILL RANGE THROUGH THE TEENS SOUTH. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... A MAINLY DRY NIGHT IS EXPECTED WEDNESDAY NIGHT AS IT LOOKS LIKE WE WILL BE IN BETWEEN SYSTEMS. HOWEVER SOME LIGHT SHOWERY PRECIPITATION OR DRIZZLE ALONG WITH AREAS OF FOG LOOKS POSSIBLE. A POSITIVELY TILTED SHORT WAVE TROUGH WILL APPROACH THE REGION LATER WEDNESDAY NIGHT AND EARLY THURSDAY. ATTENDANT SFC LOW PRESSURE WILL MOVE EASTWARD AND INTO THE FORECAST AREA DURING THE DAY ON THURSDAY...AND WILL LIKELY BE ASSOCIATED WITH A SLUG OF PRECIPITATION...MAINLY IN THE FORM OF RAIN. THE MODELS HAVE TRENDED A LITTLE FURTHER SOUTH WITH THIS LOW OVER THE LAST COUPLE OF RUNS AND THIS ISN/T MUCH OF A SURPRISE GIVEN THE DEEP SNOWPACK STILL IN PLACE. THEREFORE...WILL HAVE TO WATCH TRENDS AS THE NORTHERN EDGE OF THE PRECIPITATION SHIELD MAY END UP BEING WET SNOW. EVEN SOUTHERN AREAS MAY CHANGE TO A PERIOD OF WET SNOW BEFORE ENDING LATER THURSDAY NIGHT OR EARLY FRIDAY MORNING. THE BEST CHANCE OF ACCUMULATING SNOW WITH THIS SYSTEM WILL BE ACROSS NORTHERN NH AND THE WESTERN ME MOUNTAINS. THEREAFTER...FAIR BUT COLD WEATHER IS EXPECTED FRIDAY AFTERNOON THROUGH THE WEEKEND. && .AVIATION /06Z TUESDAY THROUGH SATURDAY/... SHORT TERM...VFR TODAY THROUGH WEDNESDAY. LONG TERM...MVFR CONDITIONS POSSIBLE IN LIGHT RAIN WEDNESDAY EVENING...THEN IFR CONDITIONS POSSIBLE IN LOW CLOUDS AND FOG OVERNIGHT. IFR ON THURSDAY IN RAIN...POSSIBLY SNOW IN THE MOUNTAINS. VFR CONDITIONS RETURN FOR FRI AND SAT. && .MARINE... SHORT TERM...RELATIVELY TRANQUIL CONDITIONS ARE EXPECTED TODAY THROUGH MUCH OF WEDNESDAY. HOWEVER...WINDS AND SEAS WILL INCREASE AS WEDNESDAY AFTERNOON PROGRESSES...POSSIBLY TO SCA LEVELS BY EVENING. LONG TERM...SCA LEVEL WINDS AND SEAS LOOK LIKELY WEDNESDAY NIGHT THROUGH EARLY FRIDAY IN ASSOCIATION WITH LOW PRESSURE. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$

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