Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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658 FXUS61 KCAR 140423 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 1123 PM EST Thu Nov 13 2025 .SYNOPSIS... Upper level low pressure will remain over Eastern Canada through Saturday as a series of weather disturbances moves through. A new upper low diving down from Central Canada will develop low pressure near our coast on Sunday. Low pressure will lift into Eastern Canada Monday into Tuesday. && .NEAR TERM /THROUGH FRIDAY NIGHT/... Update... An upper low drifts east of the region overnight, keeping troffing across the forecast area while a disturbance moves through the trof. Expect partly/mostly cloudy skies along with with flurries/isolated snow showers overnight, possibly mixed with rain showers along the Downeast coast. Low temperatures will range from around 20 to the lower 20s north, to the upper 20s to around 30 Downeast. Have updated to adjust for current conditions along with expected overnight temperatures, clouds and snow/rain shower chances. Previous Discussion... The low to our east over Newfoundland will remain nearly stationary on Friday keeping our cool northwesterly flow. Generally dry weather should continue with a partly cloudy sky and lows from the teens northwest to the mid 20s Downeast. The Newfoundland low will begin to retrograde northwestward in response to some blocking and amplification Friday night. Dry weather should persist overnight. However, the low lifting northwest may increase the gradient a bit keeping a cool breeze through the night. && .SHORT TERM /SATURDAY THROUGH SUNDAY/... ...Accumulating snow possible across most of the area Saturday night into Sunday... Saturday through Sunday, a low pressure system will cross the state and move northward into Nova Scotia. This will bring the first chance for real accumulating snow across the north. A warm wedge will move over the region on Saturday night, then colder air will filter in behind the low on Sunday. The exact path of the low will make a difference in how much warm air moves in Saturday night. Rain/snow mix is likely Saturday night into Sunday, but there is a chance that the air column could be colder than expected, leading to a greater accumulation of snow. How quickly we transition to the colder air mass will also affect how much snow accumulates Sunday into Monday. Have lowered temps slightly on Sunday from NBM deterministic to reflect the possibility of a cooler air column. Current snow accumulation total are ranging 1 to 3 inches, but this does not include potential snow Monday morning, and the spread is quite wide. The likelihood of more than 4 inches of snow before the Monday morning commute is 20 to 30 percent over eastern Maine, which means that commuters should prepare for a messy drive. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... An increasing chance exists for gusty winds on the backside of the low Monday and Monday night. The northwesterly direction indicates that the over the waters the highest winds and waves will be mainly offshore, but there is some potential for gales over the water. Across the mainland, cold gusty winds are likely Monday afternoon through early Tuesday morning, particularly at higher elevations. Winds will taper off Tuesday into Wednesday. && .AVIATION /04Z FRIDAY THROUGH TUESDAY/... NEAR TERM: Occasional MVFR/IFR ceilings possible through early morning. Otherwise, generally expect VFR conditions overnight into Friday night. North/northwest winds 5 to 10 knots overnight, then 10 to 15 knots with gusts up to around 20 knots Friday. Northwest winds 10 to 15 knots Friday night. SHORT TERM: Saturday...VFR. W to NW wind. Saturday night...VFR early, then MVFR or lower in developing snow north and rain or snow south. S wind. Sunday...Widespread IFR expected in snow north and rain and snow south. SE wind becoming W late. Sunday night...IFR north and MVFR south. Chance snow. W to NW wind. Monday through Tuesday...MVFR/VFR Scattered snow showers north. Gusty W wind. && .MARINE... NEAR TERM: A Small Craft Advisory remains in effect overnight through Friday night for much of the waters with the exception of the intra-coastal waters. Isolated showers overnight. SHORT TERM: Winds will diminish below 25 kts on Saturday, but the potential for gales exists starting Sunday afternoon and lasting until Tuesday morning. Seas will gradually build to 6 to 8 feet during this period. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...Small Craft Advisory until 9 AM EST Saturday for ANZ050-051. && $$ Near Term...CN/MB Short Term...LF Long Term...LF Aviation...CN/LF Marine...CN/LF