Area Forecast Discussion
Issued by NWS Caribou, ME

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000 FXUS61 KCAR 061110 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 610 AM EST Tue Dec 6 2016 .SYNOPSIS... High pressure will build toward the area from the west today and will crest over Maine this evening. A weak occluded front will cross the area Wednesday. A strong cold front will cross the region Friday. && .NEAR TERM /THROUGH TONIGHT/...
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6:10 AM Update...Low clouds cover much of far northern Maine from Presque Isle north to the Saint John Valley. The sky is mainly clear early this morning across the Down East region. Only minor adjustments to the hourly grids this morning based on the latest observations and satellite trends. Previous discussion... A surface ridge over NY and PA early this morning will build into Maine today and will only very slowly slide east tonight. An occlusion will move into NY State late tonight. Today will feature a lot of clouds across far northern Maine with clouds giving way to a mostly sunny sky across the Down East Region. Highs will range from the mid 20s in the Saint John Valley to the mid 30s in the mid 30s in the Greater Bangor Region. High clouds will increase tonight. In the north, the challenge will be whether the low clouds hang in or break up. If they break up temperatures will have the opportunity to drop off rapidly and could get below zero in the deeper sheltered valleys. If the clouds hang in temps will not get nearly as cold.
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&& .SHORT TERM /WEDNESDAY THROUGH THURSDAY/... Low pressure will move east of the mid atlantic coast early Wednesday as an upper low moves north of the Great Lakes with an occluded front crossing the region later Wednesday. Expect mainly cloudy skies on Wednesday with a slight chance of snow showers. High will be in the upper 20 to around 30 degrees north and lower 30s central and downeast. Expect mainly cloudy skies Wednesday night with lows in the mid to upper 20s. An upper trof will cross the region on Thursday with a chance of snow showers. Highs on Thursday will range from around 30 north and low to mid 30s downeast. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... Very cold air mass can be expected as we head into the late week as an arctic boundary crosses the region Thursday night and Friday. Expect mainly cloudy skies with a few snow showers Thursday night and Friday. A mainly dry but bitter cold weekend can be expected. Highs on Saturday and Sunday will only be in the mid to upper teens north and lower 20s downeast. The next storm system will approach by Monday with the chance for snow Sunday night and Monday. && .AVIATION /11Z TUESDAY THROUGH SATURDAY/... NEAR TERM: VFR at the Down East terminals the next 24 hours. Mostly MVFR at the northern terminals from KHUL to KFVE with local IFR this morning. SHORT TERM: MVFR conditions will be possible at times, especially across the north Wednesday through Friday in sct snow showers. Otherwise VFR expected. && .MARINE... NEAR TERM: A few gusts to 25 knots this morning on the coastal waters as a weak low pulls away from the waters. The wind will diminish by noon, with light wind tonight as high pressure crests over the waters. SHORT TERM: Winds/seas will remain below small craft advisory levels through Thursday and then increase to small craft advisory levels Thursday night and into Friday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && $$ Near Term...CB Short Term...Duda Long Term...Duda Aviation...CB/Duda Marine...CB/Duda

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