


Area Forecast Discussion
Issued by NWS Portland, ME
Issued by NWS Portland, ME
423 FXUS61 KGYX 121746 AFDGYX Area Forecast Discussion National Weather Service Gray ME 146 PM EDT Sun Oct 12 2025 .SYNOPSIS... Broad low pressure along the Mid-Atlantic coast will bring increased rain chances, gusty winds, and high surf through early week. The low will eventually be pushed east by a cold front midweek. Cooler temperatures arrive late week, particularly for the mountains. && .NEAR TERM /THROUGH TONIGHT/... Other than some light showers or drizzle affecting portions of our southernmost zones, the main rain shield to our south continues to be slower than progged. Have backed off on PoPs for tonight for most zones except the far south. Otherwise, gusty easterly winds will continue, gusting around 30 kt at times at the coast. && .SHORT TERM /MONDAY THROUGH MONDAY NIGHT/... Key Messages: * Building waves will create high surf conditions through Monday. Rip current risk remains high, with the added impact of localized beach erosion. View wave action from a distance, not on rock outcrops or land exposed to crashing waves. * Wind gusts increase into Monday morning with ENE gusts 25-35 mph possible mainly along the coast. Model guidance has continued to back off on rainfall amounts for Monday as the northward progression of the low and association precipitation runs into strong high pressure to our north. Have reduced PoPs for most locations except for southern NH. There will eventually be a sharp cut off to the precipitation shield and that line continues to look like it will be more south than forecast. Therefore, it is possible that PoPs will need to be further reduced in northern and central zones. Otherwise, easterly winds will will remain gusty. && .LONG TERM /TUESDAY THROUGH SUNDAY/... Showers should gradually taper off through the day on Tuesday as high pressure works in from the north. High temperatures on Tuesday and Wednesday look to be in the upper 50s and lower 60s. High pressure remains in the vicinity through the end of the week with conditions on the drier side expected. A mid-level trough moves southward on Thursday bringing cooler weather and some upslope rain and snow showers with a chance of an isolated shower elsewhere. Thursday will be the coldest day of this week, with highs in the upper 40s and lower 50s. Dry weather continues into Friday and Saturday, with a gradual warming trend into the weekend. A wetter, more unsettled pattern looks possible for early next week. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... Short Term...MVFR ceilings continue for southern NH terminals this evening. SHRA slowly pushes north this evening into the overnight, with RA more steady into Monday across the far south. We have reduced chances for precipitation elsewhere, and cigs may actually remain VFR through Monday north of roughly a KLEB- KPWM line. Long Term...Lowered restrictions are possible Tuesday morning, though conditions improve through the rest of the day. VFR is likely to prevail through the remainder of the week. && .MARINE... Short Term...Wave heights build tonight as easterly flow strengthens. A few gusts to Gale force will be possible off the coast of the coasts of Vinalhaven/Isle au Haut, but of less frequency than further south. Seas off of NH and southern ME will reach hazardous heights of 10 to 15 feet Monday. Long Term...SCA-criteria northeasterlies and 6-10ft seas expected Tuesday morning, with slackening winds expected. Seas lower to 4-7ft by the end of the day and will continue through most of the day on Wednesday. Winds shift to northwesterlies on Wednesday and strengthen to SCA levels by Thursday morning and may stay at SCA levels through the rest of the week. 4-6ft seas continue through the remainder of the week. && .TIDES/COASTAL FLOODING... Steady easterly winds will build water along the coast through early week, coinciding with high surf and astronomical tides around 10 to 10.5 ft (at CASM1). The result may splashover surrounding the high tide time. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...High Risk for Rip Currents until 8 PM EDT this evening for MEZ023>027. High Surf Advisory from 8 AM Monday to 8 PM EDT Tuesday for MEZ023>027. NH...High Risk for Rip Currents until 8 PM EDT this evening for NHZ014. High Surf Advisory from 8 AM Monday to 8 PM EDT Tuesday for NHZ014. MARINE...Small Craft Advisory until 8 PM EDT Tuesday for ANZ150-151-153. Small Craft Advisory until 8 PM EDT this evening for ANZ152- 154. Gale Warning from 8 PM this evening to 2 AM EDT Tuesday for ANZ152-154. && $$ NEAR TERM...Ekster SHORT TERM...Ekster LONG TERM...Palmer