


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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761 FXUS61 KCAR 091702 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 102 PM EDT Wed Jul 9 2025 .SYNOPSIS... A trough of low pressure will slowly approach from the west through the end of the week, followed by high pressure for the weekend. Another front is expected to approach the area early next week. && .NEAR TERM /THROUGH THURSDAY/... 1 PM Update: A fair weather cu field has developed across the north, while some mid to high level clouds stream into the Interior Downeast region, delaying cu development into Washington county. Warm temperatures continue into this afternoon, and max temps were raised slightly with this update, particularly in the north. Otherwise, the previous forecast remains on track. Prev discussion: Cold front has shifted well offshore with sfc ridge over the area. Clear skies and light winds has allowed river valley fog to develop over the area. Ridge valley split is definitely pronounced with Soucey Hill sitting at 60 and PQI at 53. Mins by morning will range from the mid-40s over nwrn Aroostook to around 60 near the Bangor Region and Downeast with marine layer eventually working it/s way north. Skies will gradually cloud up from the west later this afternoon as moisture returns with high pressure shifting east and inverted trof developing along the international border. Showers look to move into portions of the Central Highlands after 18z but ridge axis likely to hold on tight over remainder of the area. Max temps look to climb into the upr 70s/nr 80 over all areas with the exception of the immediate coast and the higher terrain of Piscataquis County. Upper level system slowly approaches from the west tonight though H5 ridge looks to hold tight thru 12z Thursday. As ridge begins to flatten with s/wvs riding thru in the flow cannot rule out scattered showers moving into wrn areas Thursday morning into the afternoon. Caveat to how much coverage showers will bring is wave developing along the frontal boundary over the waters impeding sfc moisture. Therefore, expecting only light showers with total qpf thru the end of Thursday being around 0.10 inches over the north and west. Temperatures on Thursday will be just slightly cooler than Wednesday. && .SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/... Thursday night: The vertically stacked low pressure system will swing the trof into the region. The shortwave energy moving into the area should push from W to E. Light rain is expected to stay mainly to the north with less in the south. Friday: The axis of the upper level trof is expected to move across the region throughout the day. Rain should continue throughout the day which will keep the temps in the 70s across the region. Some elevated instability could cause isolated thunderstorms to develop in the afternoon with the rain showers. Friday night: The ridge will start to move into the area which will gradually push out the shortwave. Rain showers should clear out of the are after midnight. Clouds should stick around through the night but gradually clear by the morning. && .LONG TERM /SATURDAY THROUGH TUESDAY/... The weekend looks to be fairly calm with partly cloudy skies and near normal temps as the ridge moves through New England. Models are in better agreement with the next cold front moving into the area by early next week. The GFS and Canadian are in better agreement with a faster moving front than the Euro. The NBM has higher rain shower chances on Monday. Decided to stick with the NBM as a good middle ground. Model lose consistency by Tuesday with the GFS showing a weak high pressure system while Euro and Canadian show another cold front. Temps should be near normal. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... NEAR TERM: VFR conditions continue across all terminals this afternoon into this evening under mostly clear skies. Some fog development is possible tonight, which could limit conditions towards IFR for BHB/BGR overnight, but terminals will otherwise remain VFR through the night. Low confidence in fog development at northern terminals, but HUL may see a brief decrease in vis through early Thursday morning as well. Winds light and variable. Thursday may see conditions diminish to MVFR as showers approach from the west late in the afternoon over most terminals. SE winds 5 to 10 kts. SHORT TERM: Thursday night: MVFR/IFR conditions at all terminals due to rain showers. Winds from the SE winds 5-10 kts. Friday: MVFR/IFR conditions due to rain showers. Slight chance for some scattered thunderstorms in far northern terminals. Winds from the SE at 5-10 kts. Friday night: VFR/MVFR conditions in light rain showers, that will taper off overnight. Light winds from the S/SE. Saturday - Saturday night: VFR conditions at southern terminals, MVFR conditions possible in northern terminals in rain showers. VFR conditions overnight. Slight chance for thunderstorms in far northern terminals. Light winds from the S/SE. Sunday: MVFR conditions in northern terminals from light rain showers. Winds from the S at 5-10 kts. && .MARINE... NEAR TERM: Winds and seas will remain well below small craft levels today into Thursday. Seas will range from 2 to 4 feet today before diminishing tonight. Visibilities may be reduced in patchy fog tonight. SHORT TERM: Winds and seas below Small Craft Advisory criteria for the rest of the week. Seas stay at or below 3 ft over the outer waters, and at or below 2 ft for the inner waters. Easterly winds at 5-10 kts on Thursday, shifting to southerly by Friday. Potential for rain showers Thursday into Friday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && $$ Near Term...AStrauser/Buster Short Term...LaFlash Long Term...LaFlash Aviation...AStrauser/Buster/LaFlash Marine...AStrauser/Buster/LaFlash