One Two, Punch! 12/2/19
Hello! I hope everyone enjoyed their Thanksgiving holiday, weekend! In my opinion, the weather on Thanksgiving was just the way it is supposed to be.
Very much like late autumn in New England, with cloudy slate gray skies & chilly temperatures. It may of been a bit windy for some, but that just added to the wintry feel to the day.
After a difficult time with the loss of my mother earlier in the month, it was great gathering with family on Thanksgiving to give thanks for the wonderful life my mom provided for us, and talk about all the great memories of mom. I couldn’t do it without family!
As the weekend went on, the weather turned even colder. While Saturday was a bright, sunny day, Sunday became overcast, with temperatures hovering around freezing.
With slate gray skies, Sunday was great day to begin preparing for the holiday season! Whether you were baking, decorating the house, or going out to find the perfect tree, the weather certainly felt like the season!
All while this was going on, a storm was slowly spinning its way towards the mid-Atlantic region, originating from the Midwest.
I was chatting with a couple Twitter friends yesterday, and we were commenting about the wild start it has been to this winter so far! Snow began falling as early as September in Montana, and has since spread deep into the California, Colorado and the upper Midwest.
After the colder than average November, it was only a matter of time before snow paid us a visit here in Boston.
The highly advertised nor’easter finally made its arrival across Massachusetts last evening. Snow rushed into the city by late afternoon yesterday, then fell heavily at times until about midnight. At that point, mild marine air eroded the cold air in place along the coast, changing the snow to rain within 10 miles of the ocean.
Before the changeover, I measured 4″ of wet snow where I live in West Roxbury. Somewhat lesser amounts fell the closer you got to the ocean. On the flip side, heavy snow with thunder fell just west of Rt 128, and across much of central & western Massachusetts, where 8 to 12″ of snow were common.
In some parts of New York state around Albany, and southern Vermont, amounts will measure close to two feet before the storm finally winds down sometime tomorrow!
Even Boston’s Logan Airport broke a snow record for December 1st! Just a pitiful 1.5″ was measured at the airport, but that was enough to break a longstanding record for December 1st dating back to 1940!
It has been quite the start to meteorological winter this year across much of the country. Remember, last winter, Boston only measured .1″ of snow until the 20th of January!
As I explained in my winter outlook last week, I believe this is a sign of a much more active winter along the coast this year.
I’m expecting colder temperatures this winter, in addition to an active storm track closer to the coast. This will lead to above average snowfall this winter across much of New England….including here in Boston!
As for December, I’m expecting stormy weather here in New England. It may not be overwhelmingly cold, but it may be just cold enough for more chances of snow this month.
Boston typically averages about 8″ of snow in December. I can see the city coming in at around a foot this month, with much more across the interior and up north.
Because of an oscillating jet stream, there will be surges of warm weather too. It would not surprise me if the month ends up slightly warmer than normal, due to a few warm surges around mid month. This has actually been the trend in December over the last decade or so, only to turn colder in January.
Long range outlooks do see colder and stormier weather may return in time for a White Christmas?? I will keep you updated for that possibility!
Getting back to the matter at hand, we’re not done with this winter storm quite yet! It has been a very complex storm to forecast…and the complexity only increases tonight and into tomorrow morning.
Latest computer data continues to show this enormous upper level storm system spinning close to New York City today.
This atmospheric spin is expected to track south of New England later today, and actually begin to spawn another low pressure off of Block Island later tonight.
This new storm is expected to begin to rapidly intensify as it tracks northeast passing just east of Boston tomorrow morning.
Right now, computer models are keeping the blockbuster bands of snows just east of Boston!! But boy, is it too close for comfort! Any slight deviation in the track would mean the difference between a crippling blizzard overnight into tomorrow, or just a light to moderate snowfall across the region.
Either way, more significant snow appears likely overnight and into the first part of tomorrow…especially across eastern Massachusetts.
I will have all the details in my forecast shortly.
Most northern ski resorts missed a lot of the snow from this past storm. However, resorts in southern Vermont and in Massachusetts received heavy accumulations!
Nevertheless, I would rank this week a 8 out of 10 across the region. Temperatures should remain mostly below normal this week, and while no big storms are anticipated, there will be some patchy areas of snow from time to time right into this weekend.
Now for our weekly outdoor winter activity forecast. I will rate this week a 6 out of 10. Chilly, but no more snowstorms this week after tonight.
For the rest of your Monday, expect changeable conditions. If you live or work just outside of Rt 128, specifically to the north or west, you can expect light snow to continue, with an additional 1 to 2″ of accumulation.
For those south and east of Rt 128, watch for windy weather, along with sheets of drizzle, and temperatures near 40.
For areas in between, like where I live, drizzle has been oscillating with wet snow, and snizzle (frozen drizzle), with temperatures in the mid 30’s.
This is all caused by a semi stationary coastal front which is separating the marine air along the coast, and the colder dense air across the interior.
As we progress into the afternoon, this front will tend to sag southeastward, changing everyone to light snow or snizzle, specifically anytime after 4 PM. So if you need to travel at that time, please proceed with caution, as roads may begin to ice up!
As the new storm begins to track closer to Boston, expect light snow to blossom into steady snow. The snow may fall heavily at times overnight and into the Tuesday morning commute.
In addition, gusty winds will begin to blow the snow around, reducing visibility. The greatest threat for heavy snow and possible winter storm warnings would be for areas east of I 95, especially from Boston points northeast. Also points north into southern New Hampshire along the seacoast.
This new storm has been poorly forecast by computer models, so there’s still some question on the exact track of the storm.
As I mentioned earlier, should the storm track slightly closer to the coast, many areas including Boston could experience a period of white out and blizzard conditions later tonight and into tomorrow morning.
Should the storm track slightly east, then lighter accumulations will be the end result.
Based upon what I’m seeing, here’s is my best estimate as what to expect for accumulations. For locations in Boston, inside of Rt 128, I am expecting an additional 4 to 7″ of snow from this storm. Areas north of Boston, especially east of I95, this could quickly build up to 6 to 10″ north shore of Boston, and along the New Hampshire seacoast region, up along the Maine coast. There will be some surprises!
Areas outside of Rt 128 should see less, on the order of 2 to 4″, and then 1 to 3″ heading towards I 495 and beyond.
For friends down on the Cape, you too can expect a change to snow, and it might be blowing around pretty good tomorrow morning with some rough driving. Right now I’m calling for between 1 and 3″ , but could be more if a few heavy bands rotate through the area.
So you can see the second part of this storm is for mainly areas that saw the least amount of snow from the first part of the storm.
Just a word of caution. Because of the banding nature of this storm, there will be areas that could get even more snow than what I have forecast. Subsequently, dry slots could cut down in other areas. It’s impossible to pin point these areas. Maximum accumulation could be as high as 10″, and as little as 2″. Based upon this, I decided to take a median of the amounts.
Also, due to the timing of the storm, there may indeed be delays and school cancellations. If the band sets up over Boston as some computer models are indicating, not only will the commute be a nightmare, but schools should consider cancelling classes.
Watch for snow to slowly diminish by noontime tomorrow. Thereafter, it should remain on the cloudy side, although some breaks can not be ruled out towards sunset.
Tomorrow night will be clear and cold, with lows in the teens and 20’s, under the fresh snow cover.
Watch for generally fair weather for both Wednesday and Thursday. Both days will feature below normal temperatures, with highs in the 30’s and low 40’s.
Temperatures may rebound a bit on Friday. However, an approaching cold front could yield more cloudiness, and there is a threat of showers moving into the region later in the day. These showers may briefly change to a period of light snow Friday night, but I would not expect any more than a dusting to an inch.
A brief arctic blast will send temperatures into the low 30’s for next Saturday, along with a biting wind. No precipitation is expected.
Temperatures on Sunday look to quickly moderate, under a mix of sun and clouds. We should rebound back up into the 40’s, possibly even 50’s? Even warmer weather may be on tap the following week, along with increase chances of rain.
Well, that’s about it for now! In next week’s blog, I will let you know what our chances are for a White Christmas. I will also have a new ski report, as well as your weekly forecast. In the meantime, coastal areas made it through the first punch pretty well. Let’s hope the second one is not a sucker punch!
Thanks for reading!
Pete