Area Forecast Discussion
Issued by NWS Portland, ME

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KGYX 230349 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 1149 PM EDT MON SEP 22 2014 .SYNOPSIS... AN UPPER TROUGH AND MODERATE NW FLOW BEHIND THE COLD FRONT WILL PROVIDE SOME LINGERING CLOUDS AND A POSSIBLE SHOWER ACROSS THE FAVORABLE UPSLOPE AREAS OF THE HIGHER TERRAIN TONIGHT. COOL AND DRY CANADIAN HIGH PRESSURE WILL MOVE OVERHEAD TUESDAY AND WEDNESDAY. HIGH PRESSURE WILL CONTINUE TO BUILD AND REMAIN OVER THE REGION LATE IN THE WEEK AND THROUGH THE WEEKEND WITH A SIGNIFICANT WARMING TREND EXPECTED AND COOL CLEAR NIGHTS THROUGH AT LEAST MONDAY. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... 1140 PM...MINOR ESTF UPDATE TO REFLECT THE 03Z MESONET AS WELL AS THE LATEST SATELLITE TRENDS. .PREV DISC... GUSTY WINDS ARE HELPING TO USHER IN THE BEGINNING OF FALL TONIGHT...AND ARE STILL IN THE 15-20 MPH RANGE. THESE SHOULD DROP OFF TO LESS THAN 10 MPH AFTER MIDNIGHT. COLD AIR STRATUS IS STILL HANGING TOUGH OVER THE MOUNTAINS AND THIS DECK SHOULD PERSIST OVERNIGHT WITH UPSLOPE WINDS AND TRAPPED LOW LEVEL MOISTURE CONTINUING TO INTERACT OVER THE TERRAIN. FOG AND EVEN FROST MAY DEVELOP IN SHELTERED AREAS ONCE THE WINDS DECREASE ENOUGH...ESPECIALLY OVER THE CT RIVER VALLEY AND POINTS SOUTH AND AWAY FROM CLOUD COVER. A FEW LOCATIONS STILL CONSIDERED TO BE IN THEIR GROWING SEASON... INCLUDING MERRIMACK COUNTY AND THE FISHTAIL OF CUMBERLAND COUNTY MAY SEE FROST...HOWEVER...IT IS NOT FORECAST FOR ENOUGH OF THE COUNTY TO WARRANT AN ADVISORY. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/... ANOTHER SHORT WAVE TROUGH WILL SWING ACROSS NORTHERN ZONES TUESDAY MORNING...AND THIS MAY BRING A FEW CLOUDS TO THE AREA. UPSLOPE MOUNTAIN LOCATIONS SHOULD HANG ONTO STRATOCU AT LEAST THROUGH THE MORNING. OTHERWISE...NOT AS GUSTY AS TODAY WITH TEMPS MAINLY IN THE 60S. CLEAR CALM AND CHILLY TUESDAY NIGHT AS HIGH PRESSURE BUILDS IN. SCATTERED FROST POSSIBLE COASTAL ZONES WHERE THE SEASON HAS NOT ENDED YET. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... HIGH PRESSURE WILL ALREADY BE WELL ESTABLISHED BY THE BEGINNING OF THE PERIOD AND WILL CONTINUE TO REMAIN ANCHORED OVER NEW ENGLAND THROUGH THE ENTIRE PERIOD. THIS WILL ALLOW FOR A PROLONGED PERIOD OF DRY...SUNNY CONDITIONS DURING THE DAY AND CLEAR SKIES WITH STRONG RADIATIONAL COOLING DURING THE NIGHTTIME PERIODS. THIS MEANS THAT LATE NIGHT FOG WILL BE LIKELY OVER THE INTERIOR VALLEYS EACH NIGHT...ESPECIALLY OVER THE CT RIVER VALLEY. MORE OF A SUBTROPICAL RIDGE STARTS TO BUILD BY THE WEEKEND AND WARMING TREND WITH TEMPERATURES HEADING INTO THE MID TO UPPER 70S IS EXPECTED. ALTHOUGH IT CURRENTLY APPEARS THAT THE EXTENDED FORECAST LOOKS DRY AND PLEASANT...IF THERE ARE ANY NORTHERN STREAM IMPULSES THAT CLIMB THE RIDGE...THEY COULD DRAG A BACK DOOR COLD FRONT ACROSS THE REGION AS BOTH THE EURO AND GFS ARE HINTING AT FOR NEXT MONDAY. EITHER WAY...THE WEATHER LOOKS GREAT FOR AT LEAST AN EXTENDED STRETCH OF TIME. HOWEVER...WE HAVE GOTTEN STUCK WITH LOW CLOUDS AND DRIZZLE MANY TIMES BEFORE WHILE BEING UNDER HIGH PRESSURE...I`LL HAVE TO PLAY THE ROLE OF A PESSIMIST FOR NOW DUE TO DEGREE OF UNCERTAINTY AND WILL FOLLOW A BLEND OF MODEL SUITES. && .AVIATION /04Z TUESDAY THROUGH SATURDAY/... SHORT TERM...VFR OUTSIDE THE MOUNTAINS TONIGHT INTO TUESDAY. GUSTY WINDS WILL ABATE THIS EVENING. LONG TERM...HIGH PRESSURE WILL REMAIN ANCHORED OVER THE REGION DURING THE LONG TERM. THIS WILL ALLOW FOR MOSTLY VFR CONDITIONS...HOWEVER PATCHY DENSE LATE NIGHT FOG MAY ALLOW FOR ISOLD LIFR CONDITIONS ACROSS SOME OF THE INTERIOR VALLEYS...ESPECIALLY AT LEB AND HIE. && .MARINE... SHORT TERM...SCA IN EFFECT THROUGH TONIGHT FOR ALL WATERS WITH GUSTY WINDS AND SEAS AOA 5 FT EXPECTED. CONDITIONS WILL ABATE LATE TONIGHT AND TUE. LONG TERM...WINDS AND SEAS WILL REMAIN BELOW SCA LEVELS. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 6 AM EDT TUESDAY FOR ANZ150>154. && $$ SCHWIBS

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.