Monthly Archives: December 2017

NYC New Year’s Eve Weather – Dec 29, 2017

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A light snow tops off 2017. The new year comes with a continued stretch of arctic cold. Make sure to bundle up for your New Year’s Eve festivities as this may be one of the coldest nights we’ve seen. Cold extends well into next week where we could see a more substantial snow storm.

Rest of today – increasing clouds, cold, with high temperatures in the low-20s.

Saturday – a weak storm system moving from the Great Lakes and a secondary coastal low should bring a light snowfall of 1-2″ in the city. High temperatures in the mid-20s.

Sunday (New Year’s Eve) – Arctic high pressure returns with a vengeance. High temperatures around 20°F, with mostly sunny skies.

Monday (New Year’s Day) – bitterly cold temperatures overnight hovering in the low teens. Wind chill will make frostbite a real issue. High temperatures Monday struggle to break even 20°F.

NYC Christmas Weekend Weather – Dec 21, 2017

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Those of you hoping for a white Christmas will be disappointed to know that we’ll instead probably be getting a rainy weekend. There is still some small chance for snow mixed with rain Christmas Day, but the white stuff won’t be sticking. While temperatures will warm up this first weekend of the official start of winter, they will plummet considerably after Christmas. Looking into long-range forecast models, there are some indications for what could be winter storms for the first couple weekends of January.

Rest of today – mostly sunny with some thin clouds, but cool with high temperatures in about 40°F.

Saturday – overnight into tomorrow, a warm front will be pushing through associated with the first of two storms affecting the area this holiday weekend. Light rain will precede this frontal passage overnight, then warmer air and steadier precipitation should affect the area during the day Saturday. High temperatures will be much warmer, around 50°F.

Sunday – once the cold front depicted above moves through, we will get a calm day on Sunday with high temperatures dropping back into the mid-40s with mostly sunny skies.

Monday (Christmas Day) – another area of low pressure will develop along the cold front that pushes into the Atlantic. This low will track close enough to the Northeast to bring some chance for a passing snow shower early in the day Monday with much colder air rushing in from the northwest. High temperatures should be in the low-40s.

NYC Weather Update – Dec 18, 2017

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A brief warm up takes place to start this week before temperatures cool of back to seasonal norms. No precipitation anticipated at least until the weekend. At this point it does not look like a white Christmas is in the cards as temperature trends are pointing warmer leading into the weekend

Rest of today – partly sunny with high temperatures in the mid-40s.

Tuesday – a dry warm front passes through. Winds shift to the southwest behind this and temperatures should hit the mid-50s with warm air flowing into the area.

Wednesday – a trailing cold front pushes through, again, no precipitation is anticipated. High temperatures cooling back off into the mid-40s with mostly sunny skies.

Thursday – continued cooling trend with high temperatures in the upper-30s and sunny skies.

 

NYC Weekend Weather – Dec 15, 2017

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A very cold start to the weekend with light snow accumulations will give way to a warming trend that carries over to the beginning of next week. During this time, we’ll see temperatures go from much below average to above average.

Rest of today – snow beginning around 2PM today and lasting through the evening rush hour with generally 1-2″ of accumulations expected in the city. Cloudy otherwise with high temperatures holding steady in the upper-20s to around 30ºF. The cause of the snow is a strengthening coastal low. This low will pass close enough that a shield of decent snowfall hits the area for several hours this afternoon.

Saturday – another cold night with overnight lows in the mid-20s in the city before sunny conditions help propel temperatures into the upper-30s.

Sunday – very similar day to Saturday with high temperatures again in the upper-30s and mostly sunny conditions.

Monday – chance of light rain/snow mix overnight due to a passing warm front. Behind the warm front, temperatures reach well into the mid-40s with partly sunny skies.

NYC Weather Update – Dec 11, 2017

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We got our first round of snow of the winter season in NYC this past weekend, with snowfall totals generally between 2-4″ from the event. We open this week with another chance for precipitation, but this time more likely in a mixed mode. An arctic blast hits for the mid-week period before yet another storm system brings our next chance of snow and rain Friday.

Rest of today – mostly sunny, cool, with high temperatures slightly below normal around 40°F.

Tuesday – a low pressure system moving east from the Great Lakes will impact the region with a mix of rain and snow. This time around we’ll be on the warm side of the storm, so we’ll likely see mostly rain at the coast. A warm front will pass through overnight. Temperatures will rise into the upper-40s in the warm sector for tomorrow. Precipitation most likely will occur in the morning. Mostly cloudy otherwise.

Wednesday – as this low pressure tracks into the Canadian Maritimes and deepens, a strengthening pressure gradient on its back side will lead to much colder and windier conditions. High temperatures will struggle to reach the freezing mark with partly sunny skies after a very cold night with low temperatures in the low-20s. Stiff west winds 20-25 mph with stronger gusts will make wind chills feel much colder.

Thursday – another cold day with high temperatures only around the freezing mark and partly sunny skies.

NYC Weekend Weather – Dec 8, 2017

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The weather headline for this weekend will be our first accumulating snow of the season! Aside from this, below average and cold temperatures will be in place throughout the weekend and well into next week. This persistent cold spell has a direct link to high pressure over the western US that has resulted in fires in California. Another chance for additional accumulating snow is possible early next week.

Rest of today – high temperatures in the low-40s with mostly cloudy skies. Snow beginning in the overnight hours into tomorrow.

Saturday – snow throughout the day, accumulations of largely between 2-4″ during the day expected in the city, but with higher totals moving east, in the 4-6″ range for parts of Queens, and Brooklyn. High temperatures in the low-30s.

A coastal storm will develop and strengthen off the Southeast coast as an upper level shortwave and a jet streak work to enhance it. The jet streak in particular will provide strong lift for the development of snow showers. Thermal profiles throughout the atmosphere in our region will support all snow. Model trends seem to continue nudging the track westward over the past couple of days. Further shifts west would result in higher snowfall totals, which are suggested by the GEFs plumes in the last image in this section that point a range of 6-8″ of snow for LGA.

Weather Prediction Center surface low tracks and clusters. Focus on the coastal low track. The mean track takes this storm very close to the 40°N 70°W benchmark, a location for coastal low centers that generally translates to robust snowfall for winter storms.

Sunday – an additional accumulation of an inch or so is forecast overnight Saturday as snow begins tapering off going into Sunday. As the low pulls away, winds will turn to the west and strengthen. High temperatures will actually be somewhat warmer in the upper-30s with mostly sunny skies.

Monday – mostly sunny skies again with high temperatures around 40°F.

NYC Weather Update – Dec 4, 2017

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The biggest weather headline for the beginning to mid-week period will be the passage of a warm front and then a robust cold front. This will bring us a dramatic swing in temperatures along with moderate to heavy rain overnight Tuesday. Late in the week, our eyes turn towards a developing coastal low, with temperatures well within the range to support snow, there’s a chance for us to see our first accumulating snows of the season this weekend.

Rest of today – mostly sunny with high temperatures around 50°F. High pressure remains in control during the day while it moves offshore.

Tuesday – cloudy with much warmer high temperatures nearing 60°F behind the passage of a warm front in the early morning hours. We’ll be in the warm sector of a low that will be centered well north of us in Ontario, and warm air will flow in from the southwest ahead of a cold front. Rain chances increasing during the day, with the best chances for rain starting in the afternoon. Rain continues overnight, moderate to heavy at times.

Wednesday – rain chances continue into the morning. Clearing conditions, with winds turning to the winds once the cold front clears our area. High temperatures peak at around 50°F but fall during the day.

Thursday – noticeably colder, with overnight lows in the low-30s. High temperatures in the mid-40s, a couple degrees cooler than normal for this time of year.

 

Weekend Snow?

Model runs over the past couple days suggest the possibility for multiple storm systems that could bring snow over the weekend. The more significant of these would be a possible coastal storm. However, the latest model runs suggest this storm would take a track too far offshore to affect us with significant precipitation. A second, weaker disturbance could move through Sunday as well. Temperatures will definitely be cold enough to support snow, especially during overnight hours. Later in the week, we should see clearer signals about whether we’ll get our first accumulating snow this season during the weekend.