October chill…10/24/16
Hello! October in New England can be a very changeable month, and this past weekend lived up to that reputation! Humidity levels were borderline obscene for this time of year at the end of last week.
The weekend started off with torrential downpours Friday night, leading to flash flooding in many communities. Showers lingered on Saturday, fowling up many outdoor activities.
The storm, our largest since last spring, certainly brought drought relief to many communities. Worcester, Ma. cut its drought deficit in half, receiving over 5 inches of rain in just a couple hours! Many other areas to the north and west of Boston received between 2 and 5″ of rain, in just a short period of time.
Later Saturday, a strong wind blew out all the muggy weather and rain. Temperatures turned sharply colder, sending folks scrambling for sweaters and jackets!
In fact, it became so cold, that the rain turned to snow in higher elevations of Vermont, and even western Massachusetts! The picture attached to the blog today, is a beautiful sight sometimes seen in New England during the fall. There’s nothing more breath taking than peak fall foliage, with snow capped mountains in the background!
Some friends asked me if the drought is over. Well, that depends where you live. I would say in all areas, the drought is still not over.
While some areas received over 5″ of rain, some areas, like Boston only received an inch and a half. We would need 10 of these storms to declare the drought over. However, this is still very beneficial rains!
And in fact, that measurement was taken right at Logan Airport. Many surrounding communities received close to 2″ of rain. The axis of heaviest rain fell from Worcester, up through southern New Hampshire, then up the coast to Portland, Maine. Yes, in these areas, the drought was cut in half in some instances.
With all that being said, there’s no denying that the pattern has slowly evolved into a much more conducive one, in providing episodes of rainy weather for us. This is in stark contrast to the arid summer we just experienced.
Many locations have received between 4 and 6″ of rain, on average, so far this fall. This is also evolving quite nicely as to where I believe we are headed for this upcoming winter.
Speaking of winter…my official winter forecast will be out less than a month from today! There is still much to observe, and study, but I must say, this upcoming winter is looking to be quite an interesting one!
If you follow precipitation patterns, this fall is proving to be more wet than last fall. If this trend were to continue, which I believe it will, as temperature cool, we will begin to see more wintery events unfolding.
I’m already seeing differences this year, compared to last. Remember, last year, a historic warm El Nino was strengthening as we headed towards winter. Temperatures were warming the deeper we went into fall.
This year, many places have already had their killing frost, and some places have even had accumulating snow up north!
This year, El Nino has faded, and a weak La Nina has replaced it. I believe the winter hinges on just how strong, or how weak this La Nina becomes.
Computer models are currently at odds as to what they believe will evolve this winter. The European seasonal outlook model believes that this will remain a very weak La Nina, or possibly even trend towards neutral, or even turn into a weak El Nino!
If this holds true, a much colder and snowier winter is likely for much of New England…especially up north and ski country.
However, other computer models are indicating a weak to perhaps even borderline moderate La Nina. If this is the case, a much different winter would be the result. I believe winter would still come, just not as harsh.
The reason being is that a stronger La Nina strengthens a ridge of high pressure (warm & dry) over southeast U.S. When this happens, it prohibits nor’easter development, and in many cases, we experience warm and dry winters.
Even if this were to happen, there still is the positive PDO to contend with. This is the abnormally warm ocean temperatures currently in the Gulf of Alaska, and off the British Columbia coast.
Earlier forecast showed this warm “blob” was going to weaken, and be replaced with cold water. Now, computer models are maintaining this warm water, or even increasing it!
Should this be the case, a ridge of high pressure (warm & dry), would build into western Canada. This would send frigid air, along with the increase likelyhood of strong nor’easter development near the New England coast this winter.
If the positive PDO were to flip and go negative, (cold water), then a warm and dry winter in New England would be more likely.
Right now, I do not see any evidence of this occurring. As you can see, the Pacific Ocean is the driving force behind our weather here in New England! Needless to say, a weak La Nina with a positive PDO makes for a very interesting winter shaping up.
There are many other global factors and local observations that I will need to closely monitor over the next month. But, as I mentioned earlier, you will want to check out the winter forecast coming up on November 21st, it’s looking very exciting!
With the unseasonably warm weather and torrential rains, the areas fall foliage took a beating. I noticed many leaves stripped from the trees, and colors which were muted. While other trees remaining green.
Overall, it doesn’t look like the best fall foliage year for us here in Boston this year. Unusual weather around here is making for a very erratic, lackluster show. I am only speaking about the the local Boston area, which is not indicative of other areas of New England.
This has not been the case out in western Massachusetts and up in the north country! Here, weather conditions have been just about perfect, which brought out one of the most vivid displays of fall foliage in recent memory!
Folks in the Boston area, it’s not completely over! Very chilly nights this week, along with sunny days, may brighten up trees at the last second heading towards Halloween.
Peak conditions are only now heading into Boston, so we shall see! There’s always some dependable trees that deliver every year, so look out for those!
Now for your weekly outdoor fall activity forecast. I will rate this week a 7 out of 10. For the rest of today, look for a mixture of sun and clouds. It will be cool, but actually just about normal, with highs near 60.
Look for clearing skies tonight along with a gusty wind developing. It will turn quite chilly, with lows in the 30’s and very low 40’s. Tuesday will feature a mix of sun and clouds, along with a cold and gusty wind.
It will actually feel and look more like November. Expect highs to struggle to get out of the 40’s. Some locations may briefly reach the very low 50’s.
Tuesday night will be cold! Expect temperatures to drop into the 20’s and 30’s regionwide! I don’t believe Boston will reach 32, but mid 30’s is quite possible with areas of frost.
Watch for the chilly weather to continue on Wednesday, with highs mainly in the 40’s once again. Wednesday night may be the coldest night of the fall, so far, with many locations falling into the 20’s.
Though downtown Boston may stay just above 32, it’s going to be cold just about everywhere else. Sorry folks, heat is going on!
As a fast moving storm system approaches New England Thursday, expect increasing clouds. In fact, the sky may have a wintery look to it.
If precipitation moves in quick enough, some wintery precipitation may occur well to the north and west of Boston. The mountains may actually receive more accumulating snow. Sign of things to come!
At this point, Friday looks unsetteled as well, with leftover showers, and cool temperatures.
Right now, I am calling for mainly dry weather this weekend. But once again, quick moving storms may traverse the region at any point, resulting in the chance of more showers. Very low confidence forecast, at this point. It will remain chilly, with highs in the low 50’s.
The early call for Halloween next Monday, is for dry weather with highs in the lower 50’s and lows in the 30’s. This is just about average for the date.
Well, that’s about it for now! In next week’s blog, I will have a review of the month of October, and also look forward as to what we can expect in November this year.
I will also let you know what type of weather New England typically experiences in November. I will also elaborate more on my upcoming winter forecast.
In the meantime, enjoy the remaining days in October. November begins next week. Grabbing a jacket or a sweater is better than the snow shovel!
Thanks for reading!
Pete