


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
489 FXUS61 KCAR 121903 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 303 PM EDT Sun Oct 12 2025 .SYNOPSIS... High pressure remains just north of the area through Tuesday, while low pressure remains well to the south. A cold front moves through late Tuesday night into Wednesday. High pressure slowly builds in from the west through the rest of the week. && .NEAR TERM /THROUGH MONDAY NIGHT/... Current satellite imagery shows a strong low pressure system off the coast of the Carolinas that is expected to move north along the mid-Atlantic coast before eventually turning east out to sea. Strong high pressure currently situated over the state of Maine will prevent the system from reaching our area, instead remaining far to our south. Thus, the main concerns from the system are gusty winds along the coast/waters and dangerously high surf with the greatest impacts expected Monday. A High Surf Advisory for areas along the coast will go into effect from 8AM Monday till 8PM Tuesday. On Monday, seas 4-7ft every 10-12 seconds will be crashing into the coastline along with high rip currents. Rip currents and sneaker waves will lead to dangerous beach conditions. Waves crashing against rocks can splash violently upward and wash onlookers out to sea. Some minor beach erosion is possible. Our messaging is if you plan to be along the shoreline, keep your distance from the water, and never turn your back on the ocean. While the southerly track of the low will mean most areas will likely remain dry, some light showers in coastal areas, particularly the Bar Harbor region are possible beginning Monday morning as the systems warm front approaches southern New England. Models overall have shown a decreasing trend in rain potential and thus have lowered PoPs from the NBM. Will have to closely monitor the low track and strength for further adjustments on precipitation. In much of northern and central Maine, little impacts are expected from the coastal low. Clouds will increase over the area throughout this evening and into the overnight hours but should mainly stay south of far northern Maine. Some fog is possible in northern areas as winds are expected to remain quite light tonight with the greatest chance in the far north where clearer skies will lead to greater radiational cooling. Widespread frost is also expected across northern Maine as temperatures are likely to drop to around freezing. On Monday, expect mostly sunny skies in the north and mostly cloudy skies farther south with temperatures in the upper 50s. Another chance for some patchy frost exists Monday night. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY/... Tuesday to Tuesday Night: On Tuesday the area will be between low pressure moving eastward from the Mid-Atlantic coast into the Atlantic and another low pressure system over the Hudson Bay moving into northwestern Quebec. The combination of weak upper level divergence and mid level moisture from the southern system could be enough for an isolated shower (20 to 30 percent chance), particularly across western portions of the forecast area like the North Woods, but most areas are expected to remain dry. Temperatures will be slightly above normal in the low 60s for most, with lows falling into the upper 30s to 40s. Southeast swell will be decreasing along the coast, but waves will still pose a threat to people near the shoreline, particularly Tuesday morning. Wednesday: A vigorous shortwave trough will cross the area on Wednesday along with a cold front. Increasing, gusty northwest winds are expected along with isolated showers along and just behind the front. High temperatures will be much cooler across the north, barely reaching 50 degrees. Areas along the coast just ahead of the front are still expected to reach the upper 50s to lower 60s. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... Wednesday night to Friday: Upper level troughing will remain across the area for the end of the week with surface high pressure gradually building towards the area. Dry and continental north flow is expected through this period, with the greatest chance of a shower Wednesday night across the higher terrain of the North Woods and Central Highlands with upslope flow behind the aforementioned cold front, then Thursday across eastern areas. Depending on surface dew points, some higher elevation areas may see snowflakes mix in Wednesday night as lows drop into the mid 30s. Temperatures will be near to slightly below normal with highs generally in the 50s and lows in the 30s. Saturday to Sunday: Dry weather will continue Saturday and likely also into Sunday with moderating temperatures as upper level ridging builds across the area. There is reasonable consensus among ensemble and deterministic models that an upper level trough will move across the Great Lakes on Sunday, although exact timing and amplitude of the trough varies. While most scenarios keep Sunday dry, faster movement of the trough could result in rain (roughly 20 percent chance) across western areas later in the afternoon. Temperatures next weekend will be similar to or slightly cooler than this weekend, with highs in the mid 50s to lower 60s and lows in the 30s. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... NEAR TERM: Tonight...VFR with increasing high cigs. Light and variable winds at northern terminals and E-NE winds 5-15kt at southern terms. BCFG/BR possible tonight with the greatest chance at HUL and PQI but confidence is low so did not include in TAF. Monday...VFR. VCSH/-SHRA for southern terminals. BHB has the greatest chance of seeing showers. E winds around 5kt north and E-NE winds 10-15kt at southern terms. Monday Night...Mainly VFR, but with a chance (around 20 percent) of MVFR from lower ceilings and light rain BHB/BGR. NE winds 5-10 kts BHB/BGR, with light and variable winds north. SHORT TERM: Tuesday...VFR. Light winds around 5 kts or less. Tuesday Night...VFR. Chance (40 percent) of MVFR or lower ceilings late. Light NW winds. Wednesday to Friday...MVFR/VFR. NNW winds 10-15 kts with gusts to around 25 kts during the day. && .MARINE... NEAR TERM: A small craft advisory remains in effect for the intra- and western coastal waters through 8 PM Tuesday. A small craft advisory will go into effect for the eastern coastal waters at 8 PM tonight and continue through 8 PM Tuesday. NE winds will be increasing this afternoon through Monday with winds gusting 25 to 30 kts. The greatest winds are expected to be over the western coastal waters where a few gusts to 35 kts are possible Monday morning. Seas will gradually build through tonight as well reaching a peak of 8 to 10 ft over the outer waters and 4-8 ft over the inner waters by mid-day Monday. Swells are expected to have a long period of 10-12 seconds. Winds decrease below small craft advisory criteria by early Tuesday morning but seas are likely to remain elevated. A few showers also possible beginning early Monday and continuing through Monday night. SHORT TERM: Winds will be below Small Craft Advisory criteria Tuesday. Wave heights will decrease steadily on Tuesday, but remain at advisory levels through at least Tuesday afternoon as a southeast swell with a period of around 10 to 11 seconds continues. Seas will be notably lower across eastern portions of the Washington County coastline, such as Lubec, where the swell will be all or partly blocked by Nova Scotia. Seas remain near advisory criteria over the outer waters through Thursday. North winds increase to advisory criteria Wednesday night into Thursday with moderate to high confidence. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...High Surf Advisory from 8 AM Monday to 8 PM EDT Tuesday for MEZ029-030. MARINE...Small Craft Advisory from 8 PM this evening to 8 PM EDT Tuesday for ANZ050. Small Craft Advisory until 8 PM EDT Tuesday for ANZ051-052. && $$ Near Term...SM Short Term...MWS Long Term...MWS Aviation...SM/MWS Marine...SM/MWS