Area Forecast Discussion
Issued by NWS Caribou, ME

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000 FXUS61 KCAR 171659 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 1159 AM EST Tue Jan 17 2017 .SYNOPSIS... A weak cold front will cross the state this morning. High pressure is expected to build across the region on Tuesday. Low pressure will pass well south of the state on Wednesday followed by an upper level disturbance crossing the region from Quebec on Thursday. && .NEAR TERM /THROUGH TONIGHT/... update... High pressure will continue to build across to our north. Expect mainly sunny skies today across the region today. Temps will range from the upper teens to near 20 degrees north and lower 30s down east. No significant changes to going forecast. Prev discussion blo... Center of sfc hipres siting up acrs nrn Quebec with ridge axis extndg south into Ontario. Greatest pressure rises occurring to the east and expect that high center wl be ovr Newfoundland this aftn. This wl place most of CWA under sfc ridge axis and supports trend of secondary low dvlpmnt south of Cape Cod late tonight. For tda, expect that clds wl gradually fizzle this mrng as cdfnt passes thru the state lvg mosunny day. Cold advection wl lkly result in maxes 3-5 degrees cooler than Mon acrs the far north with temps the rmndr of the area similar. Expect that CWA wl be hard-pressed to see much in the way of snow until aft 06z tonight and even at that not expecting much in the way of accums, with arnd 0.5 inches in the Bangor area. Mins tonight will lkly be blo zero in the St. John Vly under ridge axis. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... High pressure over southern Newfoundland moves slowly off into the northwest Atlantic through Thu. A weak area of low pressure just south of New England Wed morning moves slowly to the east/southeast with weak high pressure to build back into New England by 00z Friday. Precipitation moving into NH and southern Maine moves into an area of drier air Wednesday with a little bit of light snow or snow showers across mainly western portions of the CWA, but snow accumulation is expected to be an inch or less. A shortwave in the flow moves through later Wed night into Thu morning with some snow showers across northern areas. Temperatures Wednesday will be seasonable, with highs Thursday above average. && .LONG TERM /FRIDAY THROUGH MONDAY/... A blocking pattern develops with troughs in the vicinity of the Davis Strait and across the western CONUS as an anomalous ridge develops near James Bay with 500h on the order of 3-4 std dev above average for this time of year. The pattern will be mainly dry with temperatures well above average. Highs will be 10 to 15 degrees above average and lows of 15 to 25 degrees above average. A few weak and ill defined disturbances could tough off an isolated snow shower, mainly Fri night or Sat morning, but no significant storm systems are expected in a very benign weather weather pattern. The next more significant weather system may bring precipitation to the region by around Tue or Wed of next week, and in many areas it may even be warm enough that it is rain event, but that is still a long way out. The long range week two outlook from CPC as well as the climate models would indicate an increased chance that above average temperatures continue through the end of the month with some indication that a colder pattern could potentially return to the region by early February. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... NEAR TERM: VFR next 24 hours acrs northern terminals as high pressure influences weather. Storm system will move into BGR, bringing low MVFR cigs in lgt snow between 08z and 12z. BHB may see MVFR very late in TAF period and expect just OVC mid-high clouds for northern terminals. SHORT TERM: MVFR much of the time Wed and into Thu with brief periods of IFR possible in any light snow or snow showers. Predominately VFR Thu night into the weekend, although a weak disturbance could produce occasional MVFR at the northern terminals mainly Fri night into Sat morning. && .MARINE... NEAR TERM: Expect winds and seas to remain below SCA levels today. Cannot rule out marginal SCA criteria by 12z Wed morning. SHORT TERM: Low end Small craft advisory conditions expected Wed into Wed night, mainly on the coastal waters. Conditions will likely be below small craft advisory levels Thu through the weekend as high pressure builds across the waters. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...Small Craft Advisory from 1 AM to 7 PM EST Wednesday for ANZ050>052. && $$ Near Term...Duda/Farrar Short Term...CB Long Term...CB Aviation...Duda/Farrar/CB Marine...Duda/Farrar/CB is the U.S. government's official web portal to all federal, state and local government web resources and services.