


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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851 FXUS61 KCAR 041856 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 256 PM EDT Fri Jul 4 2025 .SYNOPSIS... Upper level low pressure will exit across the Maritimes tonight. High pressure will build south of the area Saturday. A cold front will approach on Sunday, stall over the area Monday, then move south Tuesday. && .NEAR TERM /THROUGH SATURDAY NIGHT/... Upper level low pressure will exit across the Maritimes tonight, while surface ridging builds across the region. Showers will end this evening with the exiting upper low and the loss of diurnal heating. Clouds will then decrease overnight. High pressure centered south of Maine will ridge northward across the region Saturday with mostly/partly sunny skies. A warm front will cross the region Saturday night with partly/mostly cloudy skies. Could also have a chance of showers across northern areas. Low temperatures tonight will range from around 50 to the lower 50s north, to the mid to upper 50s Downeast. High temperatures Saturday will range from the upper 70s to around 80 north, to around 80 to the lower 80s Downeast. Low temperatures Saturday night will range from around 60 to the lower 60s across the forecast area. && .SHORT TERM /SUNDAY THROUGH MONDAY/... A slow-moving cold front will be moving from NW to SE through the area Sunday through Monday. On Sunday, the front will likely be over or just north of the St John Valley, while on Monday it moves south to somewhere roughly over central portions of the forecast area. The front will be the focus of showers and storms, and possibly locally heavy rain. There is still a fair amount of uncertainty as to the exact frontal position through the period, so PoPs aren`t terribly high in any one area, with generally chance to likely PoPs. Some storms could be on the stronger side toward Monday, but this is highly conditional. Temperatures will be very warm/hot areawide on Sunday, then cooler in the north on Monday but still very warm Downeast. Dewpoints will be high, making it feel quite uncomfortable, and looking for a few spots from Bangor to Dover-Foxcroft to Lincoln teasing heat advisory criteria with heat indices topping out near or a touch above 90 Sunday and possibly Monday as well (advisory criteria is 95). && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... Monday night into Tuesday, the above-mentioned cold front continues to slowly sag south, but again, there`s considerable uncertainty as to its timing. Could still see some showers and storms Downeast Tuesday, or the activity could be offshore if the front moves through more quickly. Airmass behind the front is a bit less muggy and warm, but nothing too dramatic, with temperatures still near or a bit warmer than average through Friday. Models are in poor agreement Wednesday through Friday on the timing of systems. Kept forecast pretty generic with 20-40 PoPs. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... NEAR TERM: Occasional MVFR possible early tonight with showers ending. Otherwise, generally VFR tonight through Saturday night. However, occasional MVFR possible across northern areas later Saturday night with any showers. West/northwest winds 5 to 10 knots tonight, then 10 to 15 knots Saturday. Southwest winds 5 to 10 knots Saturday night. SHORT TERM: Sunday...Mainly VFR, though can`t rule out some MVFR in the north with possible showers/storms. SW wind around 10 kts. Sunday Night...Mainly VFR, except IFR/MVFR possible near the coast for places such as Bar Harbor and Eastport. Variable wind less than 10 kts. Monday through Monday Night...MVFR/VFR with chance of showers and storms. Local IFR near the coast. Variable wind 10 kts or less, except gustier around storms. Tuesday through Wednesday...Mainly VFR with NW wind up to 10 kts. && .MARINE... NEAR TERM: Winds/seas below small craft advisory levels tonight through Saturday night. SHORT TERM: A period of small craft seas is likely Sunday night into Monday morning, with SW winds also possibly reaching small craft levels. Seas could remain close to small craft levels through Monday night. Otherwise, conditions less than small craft. Fog likely over the waters Sunday night to early Tuesday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...Beach Hazards Statement until 8 PM EDT this evening for MEZ029- 030. MARINE...None. && $$ Near Term...Norcross Short Term...Foisy Long Term...Foisy Aviation...Norcross/Foisy Marine...Norcross/Foisy