 FRIDAY INTO FRIDAY NIGHT: Light snow falling this morning over the north and east associated with weak low pressure in south-central Quebec ends by midday. A few slick spots are possible, with less than an inch of accumulation. High pressure moves in behind the low over the north as a pseudo-stationary front with areas of weak low pressure passes to the south Friday night. Southern areas appear dry for most of the day. A weak warm front enters the region in the afternoon, which may bring a few flakes or frozen raindrops, but precipitation appears to hold off until after the evening commute. As the high nudges south, cold air creeps over far southern and shoreline areas, changing anything that may initially fall in liquid form to the frozen flake concoction. There could be a bit of a burst of accumulating snow on Friday night from 7-10 PM for York County over to Portland as the lead disturbance passes through. Light snow spreads eastward during the evening. As the dry high continues to track to the southeast, snow ends from west to east around daylight Saturday morning.  The dry high will dictate snowfall amounts away from the shorelines. The overnight short-term ideas have come into a better agreement for the best chance of 1” or more of snow, but the dry air aloft is where the bust potential comes into play for the Route 2 corridor over to Bangor and the Calais region. The coastal shorelines have the best chance to receive upwards of 3” of snow, with locally as much as 4” possible. SATURDAY: As high pressure descends into the region, the wind picks up as the next wave of Arctic air moves in. Wind gusts from the north/northwest in the 20-30 mph range (30-40 mph mountains) continue through the day. Wind chill values range in the teens to single digits below zero in the mountains and north to single digits to teens above to the south and east. A few charity snowflakes are possible for the slopes. SATURDAY NIGHT: The wind settles into the overnight hours with a clear sky. Expect temperatures to fall double digits below zero in the mountains and north to right around zero along the shorelines. SUNDAY: High pressure moves to the east and a warm front approaches from the west. Some light snow showers are possible in the afternoon, but the better chance for steadier snow lasts until evening. High temperatures for the day range from the teens in the far north to the low 30s south.  EXTENDED OUTLOOK: Light snow is expected Sunday night, which could bring some slick areas to start Monday morning. The current idea is for precipitation to end over the south by daylight, with snow showers for the mountains and north and a mix of rain and snow showers possible for the foothills over to central and eastern areas through the afternoon. The next potential storm of widespread potential comes later next week, with inside runner tracking into Quebec, which could bring all four precipitation food groups to the region. Stay tuned. Check the PTW Weather Wall for updates 24/7 PTW is here because of the people |
Mike Haggett
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