Through The Fog…I Still See Summer! 10/9/17
Hello! Happy Columbus Day, to all! It was yet another split decision weatherwise this past weekend. Saturday was a gorgeous early fall day, with abundant sunshine and warm temperatures. Sunday began with a brief period of showers. These showers moved away, but the rest of the day remained murky, with areas of fog and drizzle.
The one common theme from this past weekend and into today…it’s so darn muggy!! As the remnants of Hurricane Nate tracks north of Boston, it’s pulling up all sorts of tropical moisture from the deep south.
Many friends and family have been asking me, is this unusual weather? The short answer to this question is, yes!! It feels more like Memorial Day than Columbus Day. In fact, it may be a record for being so muggy, so late into the season around here. There’s no sense in sugarcoating it any longer. The autumn’s are warmer than they used to be…a lot warmer!
Just looking back over the last 10 years or so, I can count 7 out of the last 10 autumn’s were warmer than normal. In fact, Boston meteorologist Eric Fisher tweeted a startling graph, showing how Boston autumn’s have been steadily becoming warmer over the last 60 years or so. Yes, there have been some exceptions, but when you smooth the graph, you do notice the median line increasing over the years.
Even within my lifetime, I distinctly remember most years featuring brisk, chilly, autumn like weather on Columbus Day. I can’t remember the last time we had fall like weather on this holiday.
In recent years, many folks have actually been going to the beach! In fact, if you happen to have tomorrow off, I would recommend taking a trip to the beach, it’s going to be that nice!
Yet, despite the warm weather, you can’t stop the seasons from changing. We are losing daylight quickly now, and the nights are getting longer. With less radiation from the sun, cold air is beginning to pool in Canada. Eventually, a strong autumn storm will track close to us, and yank this cold air down into New England.
In a modified way, this is going to happen this week. As Nate passes through our area, the storm system is going to pull down cooler and drier air from the north this week.
However, because the source region is not that cold, it’s only going to bring us back to seasonal levels. It’s main focus is going to eraticate the oppressive humidity levels felt across southern New England.
As mentioned above, Columbus Day used to be the big weekend for peak fall foliage viewing across much of interior New England. Even in Boston, I remember certain trees starting to change color about this time of year. Over the years, the trend has been to push this date back a couple weeks.
While taking a short drive around my area yesterday, I was encouraged to see some splashes of bright foliage showing up on many of the trees. Now it’s true, certain species of maple trees around Boston have already turned brown, and lost their leaves.
This is due to a pesky fungus that attacked the leaves this summer. Lucky for us, there are many different species of trees around Boston!
Therefore, I’m happy to report that I’m still expecting some beautiful colors to arrive real soon! When is it ever not beautiful?
Despite the late start, I have read and seen many reports of some brilliant color showing up north, and even across western Massachusetts. It seemed as if the leaves changed overnight, said one report!
If you want to see peak colors, you probably have to drive about two hours north and west of Boston. However, it’s entirely possible that the color wave quickly collapses south, even as close by as Rt 128 belt by the middle of this week!
Here in Boston, and inside of I95, the process takes longer. Because of the modifying effects of the Atlantic Ocean, fall tends to last longer along the New England coast.
In fact, the beauty of autumn colors can sometimes last until mid November! This is when the perfect mix of chilly nightime temperatures, and mild sunny days, bring out the best of colors around here.
This means our autumn’s tend to last longer along the coast, extending the beautiful colors by a couple weeks longer than across the interior.
Due to the excessive warm weather this October, I am not expecting peak color to arrive in our area until the start of November this year.
Many continue to ask me just what this warm October means for our upcoming winter? This is the million dollar question! I don’t weigh too much of what happens in October for the upcoming winter. In recent years, October has just seemed to become an extension of summer.
My attention primarily focuses in on the patterns in November. My motto is, what happens in November, the winter will remember! While October may offer some clues, it’s in November when I gather most of my signals. Therefore, my official winter forecast is not published until November 20th, this year.
If looking at only October patterns, one would think that an excessively warm winter is on the way. And it’s true, if this pattern were to persist into November and December, you can forget about any meaningful winter this year for Boston.
The whole winter hinges on temperature and precipitation patterns in November. The more above average the temperature is at Logan Airport during November, the less snow the city receives.
Conversely, the closer it is to average or a bit below, the higher the amount of snow falls. I use this, and about 16 other signals to formulate my winter forecast.
Right now, the western trough (cold & stormy) and eastern ridge (warm & dry) pattern is persistant and stable, and is unlikely to change much for the next 7 to 10 days.
However, there are some signs, that as we move towards Halloween and the start of November, chillier temperatures may begin to penetrate the northeast, resulting in a reverse of this current pattern.
If this pattern persists, and does not “flip” to colder weather in November, as I mentioned earlier, a non winter may be in the works. But this is currently NOT the forecast. Just merely speculation.
It’s a very stubborn pattern to break down, especially with a La Nina (colder than normal water) developing in the south Pacific Ocean this winter. Typically, La Nina brings warm and dry winters to Boston, with below average snowfall.
A stubborn ridge (warm & dry) of high pressure tends to persist in the southeast part of the U.S., resulting in a warm & dry winter there. This ridge can sometimes extend all the way up the coast to Boston.
Meanwhile, a trough (cold & stormy) of low pressure, persists across the northwest part of the U.S., resulting in a very snowy and cold winter for that part of the country. This is currently the pattern across the U.S., very La Nina like.
The tricky part is, La Nina can be quite variable. No two La Nina’s are alike! Other global factors can alter the typical pattern, resulting in a surpressed jet stream, bringing snowy and cold weather for Boston. I am closely monitoring these other factors for the upcoming winter forecast.
With all that being said, I have calculated that out of 10 La Nina’s, six of them feature below average snow, two will be close to average, and two will deliver well above average snow. So if don’t like much snow, the odds are in your favor!
Now for weather history. In stark contrast to today, back on October 9th, 1979, an unusual early snowstorm struck the region! While it’s not that unusual for snow to fall in the hills and mountains of New England in October, it is unusual for snow to accumulate along the coast, especially so early in October!
In this storm, not much fell right along the shore, but you didn’t have to travel too far inland to see heavy wet snow begin to pile up!
The storm caused considerable damage to trees and power lines across the region. As is typically the case when it snows in October, not much fell the following winter! The weather community calls this the October snow curse!
Now for your weekly autumn outdoor activity forecast. I will rate this week an 8 out of 10! Expect warm and muggy weather for the rest of today in Boston. More like late mid summer, than early fall. As the remnants of Nate pass by, watch for areas of rain and downpours to travers the region this afternoon, beginning around 2 to 3 PM, and continuing on and off until about 10 PM.
It’s questionable whether the Red Sox get this game in without a rain delay or even a cancellation. If they’re lucky, the heaviest of rain will miss Fenway…go Red Sox!
Any leftover rain will sweep out of the region tonight. Skies will clear and the humidity levels will begin to drop. Still, low temperatures will only fall into the 50’s and low 60’s.
Expect a beautiful day for your Tuesday. Watch for at least partly sunny skies, with lowering levels of humidity. With temperaures near 80, I would consider a trip to the beach if I had the day off!
For the period Wednesday through Friday, expect more typical weather for this time of the year, with high temperatures mainly in the 60’s, and lows in the 40’s and 50’s. It should be mainly dry, however, there is a slight chance of a period of showers Wednesday night into early Thursday.
Next weekend is slightly iffy at this point. I’m not expecting any washouts. However, a front may be in close proximity to our region. If this front is north of us on Saturday, we may break into another blast of warm temperatures! We could be talking 80…again!
Sunday may be slightly cooler, with more clouds increasing, along with the chance of some developing showers, especially later in the day. Thereafter, warmer than normal weather looks to resume at least through October 24th.
Well, that’s about it for now! In next week’s blog, I will be letting you know when we may see our first frost. At this rate, it won’t be for a while yet. I will also have another fall foliage report, and another update on the winter forecast. In the meantime, summer is not ready to set sail, just yet!
Thanks for reading!
~Happy Birthday to my sister, Val!~ (October 10th)