Area Forecast Discussion
Issued by NWS Portland, ME

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344 FXUS61 KGYX 241126 AFDGYX Area Forecast Discussion National Weather Service Gray ME 626 AM EST Fri Nov 24 2017 .SYNOPSIS... A warm front front will lift northeast through southern Canada today through tonight. A cold front will approach from the west on Saturday and will cross the region Saturday afternoon and evening. A shallow ridge of high pressure will build in from the west on Sunday. A secondary cold front will drop south through the region Sunday night. High pressure will build in from the west Monday and will crest over the region Monday night. High pressure will shift east on Tuesday as a cold front approaches from the west. The front will cross the region Tuesday night and early Wednesday and will be followed by high pressure Wednesday afternoon. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... 630 AM Update... Cloud shield hanging in over northern and central zones will continue to slowly errode through mid morning as a stalled frontal boundary across southern Canada begins to lift north and this trend will continue into early afternoon. Have updated temp/td/sky grids based on current sat pics and surface obs. No major changes planned for current forecast. Prev Disc... Stalled frontal boundary over southern Quebec will lift north as a warm front today. Expect low and mid level clouds across northwest zones to gradually clear this morning. Aside from a few flurries in far northern zones before daybreak....should see a dry day with highs from the mid 30s to mid 40s north and mid to upper 40s south. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/... Quiet weather will continue tonight with just variable high clouds across the region. Low temperatures will range through the 20s north and mid 20s to near 30 south. Cold front will approach from the west on Saturday bringing increasing clouds and a chance of afternoon showers. Warm southwesterly flow ahead of the front will push high temperatures well above normal with highs in the the lower to mid 40s north and upper 40s to mid 50s south. && .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/... Troughing across the eastern CONUS will persist through next week. Fast moving weather-makers will affect the CWA every 18-24 hrs or so bringing showers at times. Looking at teleconnections, warm weather will also be in store for the near future. All that said, there are no significant weather events noted in the next 8 days. The deterministic models and long term spaghetti plots are in poor agreement, however the GEFS and Euro ensemble means are in good overall agreement. Short wave troughs and associated ripples will move through Sunday. Near zonal flow develops across Northern New England as the low over northeastern Canada retrogrades. Showers will mainly be confined to the mountains and the Midcoast as a couple weak associated fronts traverse the region. More mixed rain/snow showers are expected Tuesday into Wednesday- again mainly across the north- as the next short wave dips down from Canada. A more significant longwave system may affect the region late next week. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/... Short Term...VFR today through tonight. VFR saturday with areas of MVFR ceilings saturday afternoon. Long Term...Periods of MVFR may affect HIE and LEB primarily on Sunday in -SHRA/SN. Residual showers may impact HIE early Monday. VFR expected at all other terminals during this time frame. && .MARINE... Short Term...Increasing southwest flow will increase to 15 to 25 kts with highers gusts late today and lasting through much of Saturday. Have dropped SCAs for seas and have re-issued for winds and waves late today into Saturday. Long Term...After a brief break Saturday night, winds/seas approach SCA criteria once again late Sunday. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...None. NH...None. MARINE...Small Craft Advisory from 5 PM this afternoon to 5 PM EST Saturday for ANZ150>154. && $$

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