Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 230720 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 320 AM EDT MON MAR 23 2015 .SYNOPSIS... HIGH PRESSURE WILL BUILD IN FROM THE WEST TODAY THROUGH TUESDAY AND WILL SHIFT OFFSHORE WEDNESDAY AS A WARM FRONT APPROACHES FROM THE SOUTHWEST. THE WARM FRONT WILL LIFT NORTHEAST THROUGH THE REGION WEDNESDAY NIGHT. LOW PRESSURE WILL TRACK NORTHEAST ALONG A COLD FRONT APPROACHING FROM THE WEST THURSDAY. LOW PRESSURE WILL MOVE THROUGH NORTHERN NEW ENGLAND THURSDAY NIGHT AND A TRAILING COLD FRONT WILL PUSH OFFSHORE. HIGH PRESSURE WILL BUILD IN FROM THE WEST FRIDAY THROUGH SATURDAY. && .NEAR TERM /THROUGH TODAY/... UNSEASONABLE COLD AND WIND WILL PERSIST ACROSS THE REGION AGAIN TODAY ALTHOUGH WINDS WILL BE SOMEWHAT LIGHTER THAN SUNDAY. LOW PRESSURE SWIRLING OVER EASTERN CANADA WILL BACK CLOUDS INTO NORTHERN ZONES DURING THE DAY BUT SOUTHERN AREAS SHOULD SEE ANOTHER DAY OF MOSTLY SUNNY SKIES AS CLOUDS ASSOCIATED WITH A WEAK TROUGH DRY UP THIS MORNING. TEMPERATURES WILL AGAIN AVERAGE ABOUT 20 DEGREES BELOW NORMAL...STAYING BELOW FREEZING. HIGHS WILL RANGE FROM THE MID TEENS NORTH TO MID 20S SOUTH. && .SHORT TERM /TONIGHT THROUGH 6 PM TUESDAY/... WINDS DROP OFF THIS EVENING AS HIGH PRESSURE CONTINUES TO BUILD IN FROM THE WEST. ASIDE FROM PATCHY CLOUDS IN NORTHERN ZONES... SHOULD SEE A MOSTLY CLEAR NIGHT WITH JANUARY LIKE TEMPS. LOWS WILL RANGE FROM 5 BELOW TO 5 ABOVE NORTH AND 5 TO 15 SOUTH. HIGH PRESSURE WILL CONTINUE TO BUILD IN FROM THE WEST ON TUESDAY PROVIDING SUNNY SKIES AND LIGHT WINDS. DESPITE THE SUN TEMPERATURES WILL REMAIN BELOW NORMAL BUT WILL MODERATE SLIGHTLY. HIGHS WILL TOP OUT IN MOST AREAS IN THE LOWER TO MID 30S. && .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/... HIGH PRESSURE WILL CREST OVERHEAD ON TUESDAY NIGHT AND WEDNESDAY MORNING RESULTING IN FAIR WEATHER. A WARM FRONT WILL APPROACH THE REGION DURING THE DAY ON WEDNESDAY RESULTING IN CLOUDS INCREASING DURING THE AFTERNOON HOURS ALONG WITH SOME LIGHT SHOWERY PRECIPITATION...MOSTLY IN THE FORM OF RAIN. HOWEVER...THERE COULD BE MIX ACROSS THE NORTHERN INTERIOR LOCATIONS INTO WEDNESDAY NIGHT. A SHORT WAVE TROUGH AND SURFACE LOW PRESSURE SYSTEM WILL APPROACH ON THURSDAY. THIS SYSTEM SHOULD BE A WARM ONE WITH MAINLY RAIN OVERSPREADING THE REGION LATER THURSDAY AND THURSDAY EVENING. WILL HAVE TO WATCH HOW FAR NORTH A WARM FRONTAL BOUNDARY MAKES IT...AS A MORE SOUTHERN SOLUTION WOULD MEAN COLDER AIR AND A BETTER CHANCE FOR A MIX ACROSS NORTHERN ZONES. A COLD FRONT LOOKS TO SWEEP OFFSHORE THURSDAY NIGHT BRINGING AN END TO THE PRECIPITATION. THEREAFTER...MORE COLD HIGH PRESSURE BUILDS IN BRINGING FAIR WEATHER BUT COLDER THAN NORMAL TEMPERATURES FOR THE END OF THE WEEK AND THE WEEKEND. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... SHORT TERM...VFR TODAY THROUGH TUESDAY ASIDE FROM SOME PERIODS OF MVFR CONDITIONS IN THE MOUNTAINS. LONG TERM...MVFR CONDITIONS POSSIBLE LATE WEDNESDAY AFTERNOON AND NIGHT IN LIGHT RAIN SOUTH AND POSSIBLY A MIX NORTH. WIDESPREAD MVFR AND IFR CONDITIONS LIKELY THURSDAY AFTERNOON AND NIGHT IN RAIN WITH LOW PRESSURE MOVING ACROSS THE REGION. VFR CONDITIONS RETURN FRIDAY. && .MARINE... SHORT TERM...CONTINUING GALES AND FREEZING SPRAY ADVISORIES THROUGH MID MORNING. SCA`S FOR THE BAYS UNTIL NOON. LONG TERM...SCA CONDITIONS LIKELY TO DEVELOP LATE WEDNESDAY OR WEDNESDAY NIGHT AND LAST INTO FRIDAY. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...WIND CHILL ADVISORY UNTIL 10 AM EDT THIS MORNING FOR MEZ007>009. NH...WIND CHILL ADVISORY UNTIL 10 AM EDT THIS MORNING FOR NHZ001. MARINE...SMALL CRAFT ADVISORY UNTIL NOON EDT TODAY FOR ANZ151-153. FREEZING SPRAY ADVISORY UNTIL NOON EDT TODAY FOR ANZ150>154. GALE WARNING UNTIL 9 AM EDT THIS MORNING FOR ANZ150-152-154. && $$

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