Area Forecast Discussion
Issued by NWS Caribou, ME

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000 FXUS61 KCAR 171604 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 1204 PM EDT Sat Mar 17 2018 .SYNOPSIS... A cold air mass out of Canada will remain across the region this weekend. No significant weather systems are expected to affect the area through early next week. && .NEAR TERM /THROUGH TONIGHT/...
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12:00 Noon Update...Snow showers have extended a bit further south into east central areas under the upper low migrating across that area so extended snow showers further south in eastern areas. Very dry powdery snow in very cold air will allow gusty winds to produce areas of blowing snow which have been added to the forecast too. Also, lowered temps over the north and raised temps Downeast. Previous discussion: A deep and cold upper low over northern Maine at 12Z this morning will pull east of Nova Scotia this evening. Another upper low in Quebec will move toward the region tonight. Arctic air has spilled into the area early this morning, and temperatures today will feel more like January with highs in the teens north to the low 20s along the coast. A gusty northwest wind will add to the chill. Weak disturbances may touch off some light snow showers and flurries, mainly across the northern and eastern zones. It will likely be mainly cloudy in the north and p/sunny Downeast. Tonight will be cold with lows mainly in the single digits with teens along the immediate coast. If the clouds break and the wind can go light late at night a few valleys could even drop a little below zero.
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&& .SHORT TERM /SUNDAY THROUGH MONDAY/... Surface/upper level low pressure will remain near Labrador through Monday. Meanwhile, high pressure will begin to build southeast from central Canada. Expect generally partly cloudy skies across the north and mainly clear skies across down east Sunday through Monday. Temperatures are expected to be below normal for this time of year through the period. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... High pressure from central Canada will build toward the region through mid week. Meanwhile, low pressure will track east of the mid atlantic coast Monday night through Tuesday, passing well south of Nova Scotia. Another low is forecast to develop off the southeast coast on Tuesday and then track northeast toward eastern Nova Scotia by Thursday, At this time, it appears as if this system will be too far east to have much of an impact on our region. Temperatures through the period will be at near normal levels. && .AVIATION /16Z SATURDAY THROUGH WEDNESDAY/... NEAR TERM: Predominately MVFR today at the northern terminals with brief reductions to IFR possible in -sn/-shsn. Conditions at the northern terminals should improve to VFR tonight, although some brief periods of MVFR are possible, especially at KFVE. VFR expected at KBGR and KBHB through tonight. SHORT TERM: Mainly VFR conditions expected through Wednesday. && .MARINE... NEAR TERM: A small craft advisory remains in effect through tonight for a northwest wind gusting to 30 knots and seas 3 to 7 feet...highest further offshore. The wind is expected to finally diminish below sca levels by around 12Z Sun morning. SHORT TERM: Winds/seas are expected to remain below advisory levels through the period. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...Small Craft Advisory until 8 AM EDT Sunday for ANZ050>052. && $$ Near Term...CB/MCB Short Term...Duda Long Term...Duda Aviation...CB/Duda Marine...CB/Duda is the U.S. government's official web portal to all federal, state and local government web resources and services.