Area Forecast Discussion
Issued by NWS Caribou, ME

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000 FXUS61 KCAR 251515 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 1115 AM EDT Tue Apr 25 2017 .SYNOPSIS... High pressure across northern Maine this morning will move east into the Maritimes by this evening. Low pressure along the North Carolina Coast this morning will move slowly up the eastern seaboard and will dissipate in the Gulf of Maine Thursday. A cold front will cross the area Friday. && .NEAR TERM /THROUGH TONIGHT/...
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11:15 AM update...Raised temps across the area a couple degrees and also backed off on the advance of rain through central areas this afternoon. Otherwise, no major changes this hour. Previous discussion... A strong surface ridge stretches from central Quebec into northern Maine early this morning. The ridge slides east into the Canadian Maritimes today. Low pressure along the North Carolina coast will move slowly up the eastern seaboard to the Delmarva coast by 12Z Wed morning. Sunshine will fade behind increasing clouds across the Crown of Maine today, but any showers should hold off north of Houlton till after sunset. Patchy fog along the coast will be followed by some breaks of sunshine that will give way to a cloudy sky by around midday. A bit of light rain or drizzle will develop mid to late day across the Downeast Region. Wet weather in the form of rain will overspread all of northern and eastern Maine tonight along with some patchy fog. Highs today will mostly be from 50 to 55 degrees, but will likely hold in the 40s along the immediate shoreline. Lows tonight with the clouds and rain will be fairly uniform across the region and within a few degrees of 40F.
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&& .SHORT TERM /WEDNESDAY THROUGH THURSDAY/... Rain will be ongoing at the beginning of the period as an area of low pressure lifts northeast along the east coast during Wednesday. The steady rain should taper to showers during Wednesday afternoon as the low continues to weaken as it lifts toward southern New England and the upper low moves east of the region. Abundant low level moisture will remain across the region as a moist southerly flow continues through Thursday. This will keep plenty of low clouds across the region Wednesday night through Thursday along with patchy fog and drizzle as well as a few showers from time to time. Highs on Wednesday will be in the low to mid 50s and the rise to into the lower 60s on Thursday. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... Unsettled weather continues Thursday night and Friday ahead of an approaching front from the west. Expect mainly cloudy skies and scattered showers. It dries out briefly Friday night with more showers possible Saturday associated with the next front. High pressure builds back in on Sunday followed by more showers on Monday as the next front approaches from the west. && .AVIATION /15Z TUESDAY THROUGH SATURDAY/... NEAR TERM: VFR today with the only possible exception patchy early morning fog at KBHB that may briefly cause IFR conditions. Conditions will lower to MVFR this evening and to IFR tonight from south to north across the region. SHORT TERM: Widespread IFR expected in low clouds/patchy fog and drizzle Wednesday through Thursday. VFR is expected to return Friday and Saturday but MVFR is also possible in scattered showers both days. && .MARINE... NEAR TERM: A small craft advisory starts at 8 pm this evening and continues into the short term portion of the forecast as low pressure lifts slowly north toward the region. Both the wind and seas will be on the increase later today and tonight as low pressure begins to move slowly up the coast from the south. SHORT TERM: A small craft advisory remains in effect through Thursday morning, mainly for seas. && .HYDROLOGY... Rainfall amounts through Wednesday night are expected to range from around a third of an inch across far northwest areas to as much as one to one and one-half inches across downeast areas. No flooding issues are expected at this time although some minor rises on area streams and rivers are likely, especially across northern areas where some snow remains in place. && .TIDES/COASTAL FLOODING... A long period southerly fetch will develop late tonight and continue into Thursday as low pressure slowly moves up the coast. Astronomical tides are high, and minor splash over is possible around the times of high tide late Wednesday evening and again early in the afternoon Thursday. Coastal flooding is not expected at this time. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...Small Craft Advisory from 8 PM this evening to 9 AM EDT Thursday for ANZ050>052. && $$ Near Term...CB/MB Short Term...Duda Long Term...Duda Aviation...CB/Duda Marine...CB/Duda Hydrology...Duda Tides/Coastal Flooding...CB is the U.S. government's official web portal to all federal, state and local government web resources and services.