523 FXUS61 KGYX 131425 AFDGYX Area Forecast Discussion National Weather Service Gray ME 1025 AM EDT Fri Jun 13 2025 .SYNOPSIS... A cooler, continental high pressure will build into the region today. Temperatures will end up some 10 degrees colder than yesterday, but it will still be a pleasant day. An area of showers will move along the frontal boundary early Saturday before clearing works back in from the north in the afternoon. With clouds and precipitation in the area, Saturday will be the coolest day with readings only the 60s. Drier and warmer weather returns early next week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... 1025 AM Update...A persistent deck of high level clouds remains over central NH and SW Maine and have increased sky cover based on latest satellite trends. Incoming 12Z guidance suggests this deck of clouds will gradually erode into early afternoon before clouds increase later this evening. Otherwise have made minor tweaks to T/Tds to align with latest observed trends. Previous discussion...High pressure begins to build southeast towards the region today. As the pressure gradient that brought us the breezy conditions yesterday relaxes...sea breezes will develop this afternoon. Northwest winds will become south to southeast. Between that onshore winds and change in air mass...temps will be about 10 degrees cooler than yesterday. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/... Tonight clouds will continue to spread into the area as a front lifts north into New England. They will lower and thicken thru the night...with onshore winds continuing. Temps will be a little warmer than this morning...but overall near normal. Showers will approach very early Sat morning...sliding mainly across the southern half of the forecast area. This is going to lead to an inversion of the typical temp pattern across the forecast area. The warmest readings will be in the northern valleys...while across the south it will struggle to the low 60s. As positioning of the front becomes more clear in the next 12 hours...PoP may be able to be raised into the likely category...but right now the confidence is not there to go more than 50/50. && .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/... 1130 PM Update... Little change in the latest National Blend of Model forecast guidance. Previously... Overview... A stalled front brings cooler and unsettled conditions to northern New England for Saturday, with gradual improvement likely through the weekend. High pressure moves through early next week. A building ridge across the northern US brings a moderating trend through the remainder of the week. Details... Like clockwork, a stalled front brings cloudy, cool, and showery conditions to start the weekend. The best chance for showers looks to be through the first half of the day on Saturday, with gradual improvement by late in the day. Temps look likely to remain confined to the 60s for the most part. High pressure starts to build in on Sunday, but will build in from the northeast. This keeps a cooler and still moist easterly flow ongoing into the area, but with some more sunshine. Temperatures warm to near 70 across western areas, with enough instability to create some scattered afternoon shower activity, especially across the higher terrain. By Monday the high moves more off the east, setting up more of a southerly flow across the Northeast and ushering in a warming trend. Temps warm a little more each day, from the low to mid 70s on Monday, to the 80s by Wednesday. A cold front then approaches from the west by late in the week, but likely helps usher in warmer temps for at least Thursday before it crosses late next week or early next weekend. Moisture also increases through the week on the southerly flow. By Wednesday, scattered afternoon showers and thunderstorms become more likely as the airmass moistens. The best chance for these will be across the higher terrain, and will continue each day until the front passes late week. && .AVIATION /14Z FRIDAY THROUGH TUESDAY/... Short Term...Widespread VFR conditions are expected today and tonight. While clouds will thicken and lower tonight...any MVFR conditions are not expected until early Sat. SHRA will skirt along a slow moving frontal boundary with areas of MVFR CIGs and local MVFR or lower in SHRA. VFR conditions will return from north to south Sat afternoon. Long Term...VFR likely then prevails during the daytime for early to midweek next week, with nighttime valley fog possible each night. Marine fog is possible at RKD by midweek as the airmass moistens. Chances for scattered afternoon showers and storms increase across interior terminals by Wednesday and continue through late week. && .MARINE... Short Term...Winds and seas are expected to remain below SCA thresholds thru Sat. This afternoon winds will turn from offshore to onshore and continue that way into Sat. Long Term...A stalled front sags southward through the weekend, with high pressure prevailing across the water for early to midweek next week with fair conditions. A cold front approaches late in the week, with SCA conditions possible in southwesterly flow ahead of the front. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...None. NH...None. MARINE...None. && $$ NEAR TERM...Legro/Schroeter SHORT TERM...Legro LONG TERM...Clair/Tubbs AVIATION...Legro MARINE...Legro