Area Forecast Discussion
Issued by NWS Caribou, ME

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522 FXUS61 KCAR 012212 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 612 PM EDT Sat Jun 1 2024 .SYNOPSIS... High pressure slowly builds to our south through Sunday. An area of low pressure slowly drifts west over the southern Canadian Maritimes Sunday night, followed by high pressure building down from the northeast Monday through Wednesday. The high then slowly slides offshore through Thursday, as a complex storm system slowly moves across the northern Great Lakes. && .NEAR TERM /THROUGH SUNDAY/...
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6:10 PM Update...The sky is clear across the area. Temps are still in the low 70s in many places so raised early evening temps a degree or two. Otherwise, no significant changes this hour. Tonight... High pressure over the area. Daytime cumulus should dissipate, with just a few high clouds moving in from the west. With light winds and generally clear skies, good radiational cooling expected, with lows in the upper 30s to mid 40s. Not expecting any frost. Sunday... Not much change for Sunday, except the upper level ridge of high pressure to our west inches closer and is centered along the Maine/Quebec border, while the upper level low to our east shifts a touch further east. This will bring warmer temperatures than Saturday with highs in the mid 70s to low 80s, and a tendency for cirrus rather than cumulus. Still, cirrus will be thin and not everywhere, with skies clear to mostly clear. Dewpoints will still be lower than usual, so although temperatures will be in the mid 70s to low 80s, it will still feel pleasant.
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&& .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... Models have come into better agreement on handling the cutoff low ESE of Nova Scotia - and indicate it will retrograde WSW Sunday night, this should bring some isolated to possibly scattered showers (far Downeast) mainly after midnight Sunday night, with an increase in clouds elsewhere, especially from Katahdin on east. Lows Sunday night should be a few degrees above normal. The cutoff low slowly exits to the east again on Monday as northern stream ridging approaches from the west. Other than possibly some lingering isolated showers early over far Downeast Maine, it should be dry, with some decrease in cloud cover - especially from Katahdin and west. Highs on Monday should be around 5-10 degrees above normal. It should be warmest over far western zones - were there is a better chance of meaningful sunshine in the afternoon. Deep layered ridging builds in Monday night and Tuesday. Should see gradual clearing as the low levels dry out and subsidence increases from W to E. Lows Monday night should be a few degrees above normal and highs on Tuesday around 5 degrees above normal. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... The region will be between a closed low east of the southern Maritimes and another closed low moving from S Central Canada into the Great Lakes Region, resulting in ridging over the region in between the two systems Tuesday night-Thursday. It should be dry Tuesday night through at least Wednesday night and quite possibly through Thursday. For now though do have mainly isolated showers over the western 90 percent of the CWA Thursday afternoon. The models then differ over how fast the western closed low moves towards the region, and how quickly it opens up Thursday night through Saturday. As a result, have limited pops to chance in this time frame - as it is hard with any degree of confidence to say which 12 hour time block is more likely than any other to receive any precipitation Thursday night-Saturday. Temperatures should be above normal Tuesday night-Saturday. However, there is low confidence in this forecast Friday- Saturday as if the the closed low moves directly over the region late next week, temperatures could end up quite a bit cooler than currently forecast then. && .AVIATION /22Z SATURDAY THROUGH THURSDAY/... NEAR TERM: High confidence in VFR through Sunday. Sea breeze at BHB today has shifted winds to the SE, but otherwise, a N breeze 10-15 kts prevails. Winds may shift to the S at BGR toward 22 or 23z before becoming light after 0z. Winds light areawide tonight. Similar winds Sunday as we had Saturday, out of the N around 10 kts, perhaps switching to the S in the afternoon with sea breeze mainly at BHB. SHORT TERM: Sunday Night-Wednesday...VFR. && .MARINE...
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NEAR TERM: Conditions below SCA levels with no marine fog. SHORT TERM: A light pressure gradient over the waters should limit winds to 10 kt or less and seas to 2 ft or less Sunday night-Wednesday night. There is some potential the pressure gradient could tighten a bit on Thursday with winds over theThis Afternoon... High pressure at the surface and aloft is centered just west of us, with an upper level low pressure spinning in place just south of Nova Scotia. This is putting us under stable northerly flow, with a north breeze and some fair weather cumulus, generally more abundant closer to the New Brunswick. More sun than clouds this afternoon. Temperatures are comfortable in the neighborhood of 70 degrees, with very dry air. ocean possibly going up to 15kt and seas on the ocean possibly building up to 3 ft late in the day.
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&& .CAR WATCHES/WARNINGS/ADVISORIES... ME...Beach Hazards Statement until 8 PM EDT this evening for MEZ029- 030. MARINE...None. && $$ Near Term...Foisy/Bloomer Short Term...Maloit Long Term...Maloit Aviation...Foisy/Maloit Marine...Foisy/Maloit