


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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205 FXUS61 KCAR 270030 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 830 PM EDT Thu Jun 26 2025 .SYNOPSIS... High pressure will remain across the region Friday. Low pressure approaches from the west Friday night and Saturday, crosses Maine Saturday night, then exits across the Maritimes Sunday and Sunday night. A warm front will cross the area Monday into Tuesday. && .NEAR TERM /THROUGH FRIDAY/... 8 PM Update: Skies continue to clear from north to south as high level clouds shift south off the coast. The previous forecast remains on track with only minor adjustments to temperature and dewpoint based on current observations and trends. Previous Discussion: Surface high pressure remains ridged across the region tonight into Friday. An upper level disturbance will exit the region early tonight with decreasing mid/high level clouds in the wake of the disturbance. Mostly clear skies will then occur overnight. Low pressure across the Great Lakes will begin to draw a warm front toward the region later Friday. After a mostly sunny morning, clouds will increase Friday afternoon. Low temperatures tonight will generally range from around 40 to the lower 40s across northern areas. However, localized upper 30s are also possible across the normally coldest northwest valley locations. Low temperatures Downeast will range from the upper 40s to around 50. High temperatures Friday will range from around 70 to the lower 70s north, to the lower to mid 70s Downeast. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/... Clouds increase Friday evening in advance of low pressure advancing east from the Great Lakes region. At the same time, high pressure will continue to slide east into the western atlantic to the south of Nova Scotia. A south to southeast flow around these systems will result in increasing precipitable water values (1.0 to 2.0 inches) across the region Friday night. Rain is expected to develop Friday evening, with the greatest rain chances across the western portions of the forecast area, where the best lift will be focused in advance of the developing warm front. Saturday is expected to be an unseasonably cool, cloudy, and damp day. The best lift/focus for rainfall will continue to be across the central Maine Highlands and Downeast areas, in the vicinity of the boundary, with lesser chances further north. Rainfall totals through Saturday night are expected to range from less than one-quarter inch across the St. John Valley, and from one-inch to an inch and a half across the rest of the region. Some locally higher amounts are possible across the higher terrain of Piscataquis county in the favored upslope regions. Unsettled and damp weather conditions are expected to continue, at least through early Sunday until the 500 MB short wave moves east. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Ridging builds in Sunday night through Monday, with a drying trend expected. It will become a bit more humid. Another frontal boundary approaches from the west later Monday night and crosses the region Tuesday into Tuesday night. Expect an increasing chance for showers later Monday night and the chance for showers and thunderstorms on Tuesday. Another weak ridge build in for Wednesday night into early Thursday, before the next system crosses the region by Thursday. Afternoon highs will be near to a bit above normal for this time of year. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... NEAR TERM: VFR conditions expected tonight through Friday. Variable winds 5 to 10 knots tonight into Friday, shifting south at BGR/BHB Friday afternoon. SHORT TERM: Fri night...VFR to the N of KHUL, but becoming MVFR or lower elsewhere. Chance of rain. SE to S wind 10 to 15 kt. Sat through Sun...MVFR/IFR. Highest confidence in IFR at KHUL/KBGR/KBHB. Rain. S to SW wind. LLWS possible Sat through Sat night. Sun night through Tuesday...Mainly VFR but chance MVFR in any showers. && .MARINE... NEAR TERM: Winds/seas below small craft advisory levels tonight through Friday. SHORT TERM: Seas could approach SCA levels across the outer waters Saturday night. Visibility will be reduced to 1 to 3 NM in rain and patchy fog Friday night into Sunday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...Beach Hazards Statement from Friday morning through Friday evening for MEZ029-030. MARINE...None. && $$ Near Term...AStrauser/Norcross Short Term...TWD Long Term...TWD Aviation...AStrauser/Norcross/TWD Marine...AStrauser/Norcross/TWD