


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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-- Discussion containing changed information from previous version are highlighted. --642 FXUS61 KCAR 242051 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 451 PM EDT Tue Jun 24 2025 .SYNOPSIS...-- Changed Discussion --A cold front will cross the region tonight. High pressure will build across the region Wednesday into Friday. Low pressure will cross the region Saturday then exit across the Maritimes Sunday.-- End Changed Discussion --&& .NEAR TERM /THROUGH WEDNESDAY/...-- Changed Discussion --This evening, Maine stays between the warm front and the cold front in a surface low pressure system to our northwest. Mid- level high pressure to our south has been funneling warm air into the region all day, leading to some high temperatures in the 90s. Two weak surface troughs developed through the center of the state, providing some weak lifting throughout the day. Eastern most one is currently through Downeast, and the western most one comes in from Quebec. Heat indexes in the north and the immediate coast in the mid-to-upper 90s, and in inland and central Maine potentially up to 105. Excessive heat warnings and advisory are currently in effect. Do your best to avoid strenuous outdoor activities, and ensure to stay hydrated! There is a potential for some convection/thunderstorms during the evening, mainly from any lift these surface troughs provide. There is currently some storms developing along these troughs Downeast and in Canada, and these storms have been developing fast when they get lifted into the favorable environment. There is a strong surface cap that is the primary reason for convection inhibition. That being said, anything that could lift up in the atmosphere could be in a very convectively favorable environment. Favorable DCAPE and dry air aloft could cause some gusty winds coming down to the surface if convection occurs. Southwesterly winds with some heavier gusts into the evening. Tonight, cold front passes through, bringing some cooler temperatures and relief from the heat today. Overnight low temperatures in the 70s Downeast, and in the 50s/60s in the north. Crown of Maine may be a little cooler due to some overnight clearing. During the day tomorrow, ridging builds in from the northwest, leading to dry and clear conditions. High temperatures in the 70s in the north, and mid-80s Downeast. Dew points do drop overnight, however, so not expecting as muggy conditions as today.-- End Changed Discussion --&& .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...-- Changed Discussion --High pressure will remain ridged across the region Wednesday night through Thursday night. Expect mostly clear skies Wednesday night. Mostly clear/partly cloudy Thursday through Thursday night. High pressure begins to exit across the Maritimes Friday, while low pressure across the Great Lakes begins to draw a warm front toward the region. Expect increasing clouds Friday. Could also have a slight chance of showers late across western areas. Expect near normal, to slightly below normal, level temperatures Thursday/Friday.-- End Changed Discussion --&& .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...-- Changed Discussion --Low pressure begins to approach Friday night with increasing shower chances or a steadier rain developing. Low pressure should cross the region Saturday with showers or a steadier rain, then exit Saturday night with showers. Generally expect partly sunny skies Sunday, though could also still have the slight chance/chance of a shower. A cold front could begin to cross the region Monday into Tuesday with low pressure possibly developing along the front. However, uncertainty with the timing of the front still exists. Expect a chance of showers, slight chance of thunderstorms, Monday/Tuesday. Expect below normal level temperatures Saturday. Near normal, to slightly below normal, level temperatures Sunday. Slightly above normal level temperatures Monday/Tuesday.-- End Changed Discussion --&& .AVIATION /20Z TUESDAY THROUGH SUNDAY/...-- Changed Discussion --NEAR TERM: KFVE/KCAR/KPQI/KHUL: Generally VFR conditions. Few scattered and broken clouds moving through this afternoon into the evening. Skies clear out tomorrow as high pressure builds in. Winds from the W at 5-10 kt, with some periods of gusts up to 20 kts, becoming NW by tonight. KBGR/KBHB: Generally VFR conditions. Could be a few isolated thunderstorms this evening. Few scattered and broken clouds moving through this afternoon into the evening. Skies clear out tomorrow as high pressure builds in. Winds at KBGR from the NW at 5-10 kt , with some periods of gusts up to 20 kts, becoming NW by tonight. Winds at KBHB from the SW at 5-10 kt, becoming W by tonight. SHORT TERM: Wednesday night through Friday. VFR. North/northwest winds 5 to 10 knots Wednesday night. Variable winds 5 to 10 knots Thursday through Friday. Friday night..VFR early. MVFR/IFR late with a chance of showers or rain. South/southeast winds 5 to 10 knots. Saturday...MVFR/IFR with a chance of showers or rain. South/southeast winds 10 to 15 knots with gusts up to 20 knots. Saturday night...VFR/MVFR, occasional IFR. A chance of showers. Southeast/east winds 5 to 10 knots. Sunday...Occasional MVFR early. Otherwise, VFR. A chance of showers. Southeast/east winds 5 to 10 knots.-- End Changed Discussion --&& .MARINE...-- Changed Discussion --NEAR TERM: Winds and seas below Small Craft Advisory criteria tonight into tomorrow. Seas stay at or below 3 ft over the outer waters, and at or below 2ft for the inner waters. Slight chance for some scattered showers/thunderstorms over the outer waters tonight. Winds from the SW at 10-15kt, with gusts up to 20kt possible, and shift to the NW by tomorrow. SHORT TERM: Winds/seas below small craft advisory levels Wednesday night through Friday.-- End Changed Discussion --&& .CLIMATE... Near record highs possible today, June 24th: Site Forecast Record Caribou 89 93 (1995) Houlton 92 92 (1995) Millinocket 93 97 (1912) Bangor 97 93 (1995) && .CAR WATCHES/WARNINGS/ADVISORIES... ME...Heat Advisory until 8 PM EDT this evening for MEZ002-005-006- 011-029>032. Extreme Heat Warning until 8 PM EDT this evening for MEZ015>017. MARINE...None. && $$ Near Term...Brennan Short Term...Norcross Long Term...Norcross Aviation...Brennan/Norcross Marine...Brennan/Norcross Climate...Brennan